Color mixing machine

Abstract

A color mixing machine (100), comprising a first container (10), a first cover (30), a pump (50) and a discharge pipe (20), wherein the first container (10) is configured to hold a color paste, and the first container (10) has a moisturizing space (101) and a first opening (102) in communication with the moisturizing space (101); the first cover (30) is configured to detachably engage with the first container (10) to close the first opening (102); the discharge pipe (20) has an inlet end (21) and an outlet end (22), the inlet end (21) being connected to the first container (10) via a pump (50), and the outlet end (22) being configured to discharge the color paste; and the outlet end (22) is connected to the first cover (30), and when the first cover (30) closes the first opening (102), the outlet end (22) is in communication with the moisturizing space (101). By moisturizing the outlet end (22) of the discharge pipe (20), the problem of easy clogging of the outlet end (22) is solved.

Description

A color mixing machine

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to application number 2023118719051 filed with the China Patent Office on December 29, 2023 and entitled “A Color Mixing Machine,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of color grading technology, and in particular to a color grading machine. Background Art

[0004] The container in a color mixing machine typically consists of a barrel and a lid. The barrel's interior is used to store color paste, and the lid is located on the top of the barrel. The bottom of the barrel is connected to a color paste pump, and a nozzle is located at the outlet of the color paste pump to dispense the color paste from the container. However, the nozzle of the color mixing machine has a time interval between two dispensing operations, which can cause the nozzle to dry out and become clogged.

[0005] While the dry-clogging problem of color tinting machines has gradually become accepted by users, some color tinting machine manufacturers have a vague belief that solving this dry-clogging problem is a potential need for color tinting users. If a more effective and low-cost solution can be found, their products will surely be recognized by users. Currently, patents CN201310045508.9 and CN201410792555.4 propose colorant end-reflow technology and end-reflow composite pump technology, which both address the global problem of dry-clogging colorant nozzles at a low cost. In recent years, technological innovation in this industry has shifted from improving color tinting efficiency to developing high-performance products that prevent dry-clogging. In particular, different types of anti-clogging structures have been developed based on the anti-clogging technology of patent CN201410792555.4, and numerous extension patents based on CN201410792555.4 have been applied for.

[0006] Due to the difficulty in improving color matching efficiency, to enhance product competitiveness and capture a wider market share, the industry has innovated its color matching strategy based on patent CN201410792555.4. This approach refines and improves the anti-drying and blocking structure of the end-reflow system. This patent has led to the development of various models, which have been widely recognized by users worldwide. Consequently, patent CN201410792555.4 has expanded beyond latex paint color matching to include automotive refinishing and is now also expanding into other areas requiring color matching, such as inks, particularly nail polish and oil-based wood finishes, where automated color matching has previously been unavailable. While the patented technology in CN201410792555.4 addresses the long-standing issue of colorant nozzle blockage and drying, a long-standing issue in the latex paint industry, years of use have revealed that some solvent-containing colorants can cause swelling of the valve body in patent CN201410792555.4, potentially leading to leakage. In addition, some color pastes containing solid dyes will cause certain wear on the valve body and easily cause the valve body to leak color paste. The cleaning fluid used to clean the residual color paste at the valve body outlet will also cause certain pollution to the environment.

[0007] Application Contents

[0008] The embodiment of the present application provides a color mixing machine that can moisturize the outlet end of the injection tube, thereby solving the problem of easy clogging of the outlet end.

[0009] An embodiment of the present application provides a color tinting machine, which includes a pump, a first container, a first cover and an injection tube. The first container is configured to accommodate color paste, and the first container has a moisturizing space and a first opening connected to the moisturizing space; the first cover is configured to be detachably combined with the first container to close the first opening; the injection tube has an inlet end and an outlet end, the inlet end is connected to the first container through a pump, and the outlet end is configured to inject the color paste, wherein the outlet end is connected to the first cover, and when the first cover closes the first opening, the outlet end is connected to the moisturizing space.

[0010] In this embodiment, the first container contains color paste. Since the color paste is liquid and has a certain volatility, some of the color paste in the first container will evaporate and gather in the space above the liquid level of the color paste in the first container, making the humidity in this space higher than the humidity outside, thus forming a moisturizing space above the liquid level of the color paste in the first container. Of course, the area below the liquid level of the color paste in the first container is also liquid and has a higher humidity, naturally forming a moisturizing space. Therefore, the internal space of the first container constitutes the moisturizing space. The top of the first container has a first opening that communicates with the moisturizing space, and the first cover is provided to cover the first opening, thereby sealing the moisturizing space. The inlet end of the injection tube is connected to the first container through a pump, and the outlet end of the injection tube is connected to the first cover body. When the first cover body is covered on the first opening, the outlet end of the injection tube is located in the moisturizing space of the first container. The humidity of the moisturizing space in the first container can maintain the humidity of the outlet end, so that the outlet end is in a moist state, reducing the phenomenon of dryness and blockage at the outlet end of the injection tube, thereby achieving moisturizing and anti-blocking of the outlet end, making it easier to meet the accuracy of the injection amount at the outlet end. That is, the outlet end of the injection tube is integrated with the first cover body, and the outlet end relies on the first cover body to achieve communication with the moisturizing space of the first container. Compared with the problem of poor sealing due to the gap when the outlet end is inserted into the first container, in this solution, the outlet end is sealed with the first opening of the first container and connected to the moisturizing space through the first cover body, so that the sealing between the outlet end of the injection tube and the first container is better, and the moisturizing effect of the outlet end is better. And when the external pulling mechanism needs to pull the outlet end apart from the first container for grouting, since the first cover body and the first container are detachably coupled, it is only necessary to separate the first cover body from the first container, which is more conducive to the external pulling mechanism pulling the first cover body together with the outlet end to the pouring position for grouting operation, and after the grouting is completed, the first opening of the first container is covered, and the outlet end of the pouring tube is inserted into the moisturizing space to achieve moisturizing and anti-blocking.

[0011] The color pastes mentioned in this application include: latex paint color paste, car repair paint masterbatch, ink, wood paint color paste, nail polish, caulking agent, art paint color paste, textured paint color paste, real paint color paste and liquid ingredients for latex paint production used in factory filling and batching machines, etc.

[0012] In some embodiments, the first cover has a first through hole, and the outlet end is disposed through the first through hole.

[0013] In the above technical solution, the first cover body is provided with a first through hole, through which the outlet end of the pouring tube passes, thereby achieving connection between the first cover body and the outlet end.

[0014] In some embodiments, the outlet end is interference fit with the first through hole.

[0015] In the above technical solution, by adopting an interference fit between the outlet end and the first through hole, the interference fit has the advantages of simple connection, good centering, large load-bearing capacity, little weakening of the structural strength of the outlet pipe and good impact resistance.

[0016] In some embodiments, the first cover includes a body and a sleeve, the sleeve is connected to the body, the sleeve has a central hole, and the central hole constitutes the first through hole.

[0017] In the above technical solution, by setting the sleeve in the first cover body, the central hole of the sleeve constitutes the first through hole of the first cover body, and then the injection pipe is passed through the sleeve, and the sleeve is connected to the outlet end of the injection pipe, which can play a certain protective role for the injection pipe.

[0018] In some embodiments, the sleeve protrudes from the inner surface and / or outer surface of the body.

[0019] In the above technical solution, compared with the case where the sleeve is flush with the inner surface of the body, when the thickness of the first cover body is constant, the sleeve can extend the connection length and connection area with the injection tube, and protect and reinforce the outlet end of the injection tube; when the sleeve protrudes from the inner surface of the body, the sleeve can reinforce the side of the outlet end located on the inner surface of the body, and when the sleeve protrudes from the outer surface of the body, the sleeve can reinforce the side of the injection tube located on the outer surface of the body, and when the sleeve protrudes from the inner and outer surfaces of the body, the sleeve can reinforce both sides of the injection tube located on the outer and inner surfaces of the body, thereby improving the connection stability between the injection tube and the first cover body, and avoiding the problem of poor sealing due to the gap between the joint of the injection tube and the first cover body caused by repeated use.

[0020] In some embodiments, the first container includes a barrel body and a second cover body, the top of the barrel body has a second opening, and the second cover body is covered with the second opening; the first opening is located in the second cover body, and the first cover body and the second cover body are detachably combined.

[0021] In the above technical solution, the first container comprises a barrel and a second cover, and the second cover seals the second opening of the barrel, making the first container a split structure, which facilitates the replenishment of the colorant in the first container and subsequent maintenance. Furthermore, the first opening is located on the second cover, so that the first cover seals the top of the first container.

[0022] In some embodiments, the first cover is magnetically connected to the second cover.

[0023] In the above technical solution, by adopting a magnetic connection between the first cover and the second cover, the magnetic force can attract the first cover to the second cover, and the sealing between the first cover and the second cover can be guaranteed under the action of the magnetic force. In addition, the first cover and the second cover are connected by magnetic attraction. In the process of moving the first cover from the separated state to the second cover, the magnetic attraction can play a certain positioning function, making the separation and connection of the first cover and the second cover more accurate. When the second cover needs to be separated from the first cover, it is only necessary to overcome the magnetic force. The second cover is convenient, quick and easy to take and put.

[0024] In some embodiments, the first cover is provided with a plurality of first magnetic members, and the second cover is provided with a plurality of second magnetic members, and the positions of the plurality of first magnetic members correspond to the positions of the plurality of second magnetic members.

[0025] In the above technical solution, by setting the number of the first magnetic part and the second magnetic part to multiple, there are multiple magnetic points between the second cover body and the first cover body, and the magnetic connection between the first cover body and the second cover body is more stable. Even when one or more magnetic parts between the first cover body and the second cover body fail, the first cover body can still be covered on the first opening to ensure the sealing problem between the first cover body and the second cover body.

[0026] In some embodiments, the plurality of second magnetic elements are spaced apart along the circumference of the first opening, and the magnetic poles of two adjacent second magnetic elements are in opposite directions.

[0027] In the above technical solution, by making the magnetic pole directions of the two adjacent second magnetic parts on the second cover body opposite, then in the process of the first cover body covering the first opening on the second cover body, the first magnetic part on the first cover body can only be magnetically matched with the second magnetic part at the corresponding position on the second cover body, and will not be magnetically attracted to the second magnetic part adjacent to the corresponding position on the second cover body or be affected by the second magnetic part adjacent to the corresponding position on the second cover body. Because the magnetic pole directions of the first magnetic part at the corresponding position on the first cover body and the second magnetic part adjacent to the corresponding position on the second cover body are the same, a repulsion effect will be generated, which is equivalent to setting the magnetic pole directions of the two adjacent second magnetic parts in opposite directions, which can play the role of self-positioning and correction for the magnetic connection between the first cover body and the second cover body, so that the first cover body can be more accurately covered at the first opening of the second cover body.

[0028] In some embodiments, the first cover is provided with a plurality of first installation slots, and each first magnetic member is at least partially accommodated in a corresponding first installation slot.

[0029] In the above technical solution, the first mounting groove is provided on the first cover body, so that the first magnetic component can be installed in the first mounting groove. The first mounting groove can play the function of positioning and limiting the first magnetic component, so that the first magnetic component can be more firmly installed on the first cover body.

[0030] In some embodiments, the second cover is provided with a plurality of second installation slots, and each second magnetic member is at least partially accommodated in a corresponding second installation slot.

[0031] In the above technical solution, the second mounting groove is provided on the second cover body, so that the second magnetic component can be installed in the second mounting groove. The second mounting groove can play the function of positioning and limiting the second magnetic component, so that the second magnetic component can be more firmly installed on the second cover body.

[0032] In some embodiments, when the first cover closes the first opening, a portion of the first magnetic member is accommodated in the second installation groove; or a portion of the second magnetic member is accommodated in the first installation groove.

[0033] In the above technical solution, when the first cover body closes the first opening, a part of the first magnetic part is accommodated in the second mounting groove, that is, the first magnetic part on the first cover body is partially inserted into the second mounting groove, or the second magnetic part on the second cover body is partially inserted into the first mounting groove of the first cover body, so that the first cover body and the second cover body can not only be tightly attached under the action of magnetic adsorption, but also can be positioned and plugged into each other, which plays a guiding and limiting function for the first cover body to be covered on the second cover body, thereby improving the combination accuracy and combination stability of the first cover body and the second cover body.

[0034] In some embodiments, the first cover is snap-fitted to the second cover.

[0035] In the above technical solution, the first cover body and the second cover body are snap-fitted together, so that the first cover body and the second cover body can be easily assembled and disassembled, which is beneficial for the pulling mechanism to grasp or release the first cover body.

[0036] In some embodiments, the first cover body is provided with a plurality of clamping portions, and the second cover body is provided with a plurality of matching portions, and the positions of the plurality of clamping portions correspond to the positions of the plurality of matching portions.

[0037] In the above technical solution, by setting the number of snap-fitting parts and matching parts to multiple, there are multiple snap-fitting points between the second cover body and the first cover body, and the connection stability between the first cover body and the second cover body is higher. Even if one or more snap-fitting parts or matching parts between the first cover body and the second cover body fail, the first cover body can still be stably covered on the first opening, ensuring the sealing problem between the first cover body and the second cover body.

[0038] In some embodiments, a guide unit may be provided between the first cover and the second cover, and the guide unit is configured to guide a movement trajectory of the first cover and the second cover after they are separated.

[0039] In some embodiments, the plane where the first opening is located is inclined relative to the horizontal plane.

[0040] In the above technical solution, the plane where the first opening is located is tilted relative to the horizontal plane, making the first opening an oblique opening. In this way, the first cover body is arranged to cover the first opening, which facilitates the pulling mechanism to pull the first cover body apart or together with the second cover body. The inclined first opening allows the first cover body to first move forward, or forward and downward, or forward and obliquely upward, or vertically upward, or left and right obliquely forward when being separated.

[0041] In some embodiments, the color tinting machine also includes a second container and a pulling mechanism, which is configured to be connected to the first cover body to drive the first cover body to move between a first position and a second position. When the first cover body is in the first position, the first cover body closes the first opening; when the first cover body is in the second position, the first cover body is separated from the first container to inject slurry into the second container through the outlet end.

[0042] In the above technical solution, the pulling mechanism is connected to the first cover, driving the first cover to move between a first position and a second position. When the first cover is in the first position, the first cover closes the first opening, thereby sealing the moisturizing space within the first container. When the first cover is in the second position, the first cover separates from the first container, allowing grout to be injected into the second container through the outlet, achieving outward grouting. Therefore, the pulling mechanism requires no human intervention, has a high degree of automation, and reduces the workload of staff.

[0043] In some embodiments, the pulling mechanism includes a grabbing unit and a driving unit, the grabbing unit is configured to grab and release the first cover; and the driving unit is configured to drive the grabbing unit to move back and forth.

[0044] In the above technical solution, the grabbing unit is provided to grab and release the first cover, and the driving unit, as a power source, can drive the grabbing unit to move back and forth, thereby realizing the separation or connection of the first cover and the first container.

[0045] In some embodiments, the grabbing unit includes a moving part, two clamping arms, two elastic parts and a guide assembly, the moving part is connected to the driving unit, and the driving unit is configured to drive the moving part to reciprocate along the first direction; the two clamping arms are spaced apart along the second direction, one end of each clamping arm is hinged to the moving part, and the other end is a free end, and the first direction is perpendicular to the second direction; each elastic part is connected between the corresponding clamping arm and the moving part; the guide assembly includes two guide plates arranged opposite to each other along the second direction, and the guide plate has a front end close to the first container; when the moving part drives the two clamping arms to enter between the two guide plates from the front end, the front end squeezes the corresponding clamping arm so that the free ends of the two clamping arms are close to each other to clamp the first cover body; when the moving part drives the two clamping arms to extend from the front end, the elastic part drives the free ends of the two clamping arms away from each other.

[0046] In the above technical solution, the moving part is connected to the driving unit, and the moving part serves as the supporting body of the grasping unit. The two clamping arms are arranged on the moving part. The two clamping arms cooperate with each other to realize the clamping and release of the first cover body. The setting of the guide assembly has a guiding and limiting function. The two guide plates in the guide assembly cooperate with the two clamping arms, so that the two clamping arms can achieve a clamping and an open state, thereby completing the clamping and release of the first cover body. When the moving part drives the two clamping arms to enter between the two guide plates from the front end, the front ends of the two guide plates can respectively squeeze the corresponding clamping arms, so that the free ends of the two clamping arms are close to each other, thereby clamping the first cover body. At this time, the elastic part accumulates elastic potential energy; when the moving part drives the two clamping arms to extend from the front end of the guide plate, the elastic part releases the elastic potential energy, thereby driving the free ends of the two clamping arms away from each other, thereby completing the release of the first cover body.

[0047] In some embodiments, a groove is provided on the inner side of the clamping arm, and a protrusion is provided on the first cover body. When the clamping arm clamps the first cover body, the protrusion is embedded in the groove.

[0048] In the above technical solution, by setting the groove on the clamping arm and the protrusion on the first cover body, when the clamping arm clamps the first cover body, the protrusion is embedded in the groove, thereby realizing the clamping of the first cover body by the clamping arm, improving the stability of the two clamping arms clamping the first cover body during the movement in the area between the two guide plates, and reducing the probability of the first cover body falling during the movement.

[0049] In some embodiments, the groove extends along the length of the clamp arm.

[0050] In the above technical solution, by setting the groove as a long strip groove, even if there is a certain deviation in the position of the clamping arm, the length of the groove is longer, and the protrusion on the first cover body can still be embedded in the groove, thereby increasing the fault tolerance rate when the clamping arm clamps the first cover body.

[0051] In some embodiments, a plurality of first anti-slip grooves are provided on the inner side of the clamp arm, and a plurality of second anti-slip grooves are provided on the first cover body. When the clamp arm clamps the first cover body, the plurality of first anti-slip grooves contact and cooperate with the plurality of second anti-slip grooves to increase the static friction between the clamp arm and the first cover body.

[0052] In the above technical solution, through the arrangement of the first anti-slip groove on the inner side of the clamping arm and the second anti-slip groove on the first cover body, when the clamping arm clamps the first cover body, the multiple first anti-slip grooves and the multiple second anti-slip grooves cooperate and contact, which can increase the static friction between the first cover body and the clamping arm, and the first cover body and the clamping arm are not easy to move relative to each other, thereby improving the stability of the first cover body during movement.

[0053] In some embodiments, the second direction may be a vertical direction.

[0054] In the above technical solution, when the second direction is vertical, that is, the two clamping arms are spaced apart in the vertical direction, and the two clamping arms clamp the first cover body in an upward and downward manner. Similarly, the two guide plates in the guide assembly can still guide and direct the clamping arms, enabling the clamping arms to clamp and release the first cover body. In addition, the lower clamping arm of the two clamping arms can provide a certain support function for the second cover body, thereby enhancing the clamping stability of the first cover body and reducing the probability of the first cover body falling.

[0055] In some embodiments, the second direction is a horizontal direction.

[0056] In the above technical solution, the two clamping arms are spaced apart in the horizontal direction, and the two clamping arms clamp the second cover body in a horizontal clamping manner, which can also achieve clamping and releasing of the first cover body.

[0057] In some embodiments, the pulling mechanism further includes a base, and the driving unit and the guide assembly are both mounted on the base.

[0058] In the above technical solution, the base is provided to provide a platform for installing the drive unit and the guide assembly.

[0059] In some embodiments, the driving unit includes a first driving member, a first lead screw, a guide rod and a first nut. The first driving member is mounted on the base. The first lead screw is rotatably mounted on the base along a first direction. The driving end of the first driving member is drivingly connected to the first lead screw to be configured to drive the first lead screw to rotate. The guide rod is arranged on the base along the first direction. The first nut is threadedly engaged with the first lead screw, and the first nut is slidingly arranged on the guide rod along the first direction. The moving member is installed on the first nut.

[0060] In the above technical solution, the driving unit is adopted as the first screw-nut sub-mechanism, the first nut and the first screw are threaded together, and the first nut is driven to move back and forth along the first screw under the action of the first driving member. The transmission accuracy of the first screw is relatively high, which can ensure the measurement accuracy of the moving part, and the structure of the first screw is simple, thereby reducing the failure points, improving its reliability, and greatly reducing the manufacturing cost.

[0061] Likewise, the first screw-nut pair mechanism can also be replaced by a linear guide rail module.

[0062] In some embodiments, the driving unit includes a first driving member, a pulley and a synchronous belt. The first driving member is installed on the base, and the pulley is rotatably installed on the base. The first driving member is configured to drive the pulley to rotate. The synchronous belt cooperates with the pulley transmission and extends along the first direction. The moving member is connected to the synchronous belt and moves along the first direction on the base following the synchronous belt under the action of the first driving member.

[0063] In the above technical solution, by adopting a synchronous belt transmission method for the drive unit, the movable member can be driven to move back and forth in the first direction relatively smoothly, ensuring that the grasping unit accurately grasps or releases the first cover. Moreover, the drive unit using a synchronous belt transmission method is generally shorter in the first direction than the screw-nut pair or linear guide module, which can reduce the space occupied by the mechanism and its overall cost is relatively low. In terms of daily maintenance and repair, the maintenance and removal of the synchronous belt are more convenient and more economical.

[0064] In some embodiments, the gripping unit includes a bracket, a pressing portion and a slide rail, the bracket is configured for installation of the driving unit; the pressing portion is connected to the driving unit, and the driving unit is configured to drive the pressing portion to slide on the bracket in a vertical direction; the slide rail is inclined on the bracket, and the pressing portion is configured to drive the outlet end to move along the extension direction of the slide rail so that the outlet end is close to or away from the first container in the vertical and horizontal directions.

[0065] In the above technical solution, through the setting of the slide rail, the slide rail can guide the movement of the downward pressure part, and the downward pressure part applies downward pressure to the outlet end on the first cover body. Under the driving action of the driving unit, the outlet end can be driven to approach or move away from the first container in the vertical direction and the horizontal direction, so that the outlet end can have horizontal and vertical displacement when moving together with the first cover body, so that when the grabbing unit drives the outlet end on the first cover body away from the first container, it can be displaced in the vertical direction. Compared with when the grabbing unit drives the first cover body to move in the horizontal direction for grouting, the outlet end on the first cover body can be closer to the second container, and the second container can also be placed on the lower side of the first container, reducing the space occupied by the color mixing machine in the horizontal direction, making the structure of the color mixing machine more compact.

[0066] In some embodiments, the slide rail has a first guide groove extending along its length direction, the first cover body is provided with a first pulling end and a second pulling end, the first pulling end can selectively slide in the first guide groove, and the first guide groove has a first opening end for the first pulling end to disengage from the first guide groove; the height of the slide rail gradually decreases in the direction approaching the bracket; the grasping unit also includes a supporting part, which is arranged on the bracket through a tension spring, and the tension spring extends in the vertical direction, the upper end of the tension spring is connected to the bracket, and the lower end is connected to the supporting part, and the supporting part can be slidably arranged on the bracket and is located directly below the first opening end of the slide rail; the pressing part includes two oppositely arranged pressing claws, the pressing claw has a second guide groove, the second pulling end can selectively slide in the second guide groove, the second guide groove has a first upper stop end close to the bracket and a second open end away from the bracket, and the height of the first upper stop end is greater than the height of the second opening end; the driving unit is configured to drive the pressing claw to move in the vertical direction on the bracket.

[0067] Among them, when the pressing claw moves downward to the third position, the first pulling end of the first cover body slides along the first guide groove to separate from the first opening end and is supported by the supporting part, and the second pulling end enters from the second opening end and slides along the second guide groove to be abutted by the first upper stop end, and the first cover body completes the horizontal movement and approaches the bracket; when the pressing claw continues to move downward, driving the first cover body and the supporting part to move downward to the grouting position, the tension spring accumulates elastic potential energy; when the pressing claw moves upward to the third position, the supporting part can push the first pulling end of the first cover body through the first opening end into the first guide groove, and the second pulling end is separated from the first upper stop end, and can move along the first guide groove and the second guide groove to the side away from the bracket to the initial position.

[0068] In the above technical solution, the second guide grooves in the two pressing claws in the pressing part can be connected to the corresponding second pull-connecting ends on the first cover body to apply downward pressure to the first cover body, and then the pull-connecting ends of the first cover body can slide along the first guide grooves and the second guide grooves, and the height of the slide rail gradually decreases in the direction close to the bracket. The height of the first upper stop end is greater than the height of the second open end, so that the first cover body can first undergo a horizontal displacement close to the bracket when the pressing part moves downward, and then continue to move downward with the pressing part. When the pressing claw moves to the third position, the first cover body slides along the first guide grooves and the second guide grooves until the first pull-connecting end separates from the first open end and abuts against the supporting part, and the second pull-connecting end is abutted by the first upper stop end. The first cover body completes the horizontal movement and approaches the bracket, and the positioning connection between the first cover body and the pressing part is completed. The pressing part continues to move downward in the vertical direction, the tension spring accumulates elastic potential energy, and when it moves to the grouting position, the outlet end on the second cover body performs the grouting operation. When the pressing claw moves upward to the third position, the supporting part pushes the first pulling end of the first cover body through the first opening end into the first guide groove, and the second pulling end is separated from the first upper stop end, completing the separation of the first cover body and the supporting part and being able to move along the first guide groove and the second guide groove to the side away from the bracket until the first cover body moves to the first opening on the second cover body and is combined.

[0069] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0071] FIG1 is a schematic structural diagram of a first container and an outlet pipe in a color mixing machine provided in some embodiments of the present application;

[0072] FIG2 is a schematic structural diagram of the outlet end together with the first cover body separated from the first container in FIG1 ;

[0073] FIG3 is a schematic structural diagram of a guide mechanism connected between a first cover and a second cover in a color tinting machine provided in some embodiments of the present application;

[0074] FIG4 is a schematic diagram of a state in which the first cover body and the second cover body in FIG3 are separated;

[0075] FIG5 is a schematic diagram of an explosion of a first container in a tinting machine according to some embodiments of the present application;

[0076] FIG6 is a schematic structural diagram of an injection tube and a first cover in a color mixing machine provided in some embodiments of the present application;

[0077] FIG7 is a schematic structural diagram of a first cover provided in some embodiments of the present application;

[0078] FIG8 is a partial cross-sectional view of the outlet end in FIG7;

[0079] FIG9 is a schematic structural diagram of a second cover provided in some embodiments of the present application;

[0080] FIG10 is a schematic structural diagram of a first cover body and a second cover body in a separated state provided by some embodiments of the present application;

[0081] FIG11 is a schematic diagram of a structure in which the opening surface of the first opening in the second cover body provided by some embodiments of the present application is multi-planar;

[0082] FIG12 is a schematic diagram of a structure of a first cover body and a second cover body magnetically connected to each other according to some embodiments of the present application;

[0083] FIG13 is a schematic diagram of the structure of the first cover body and the second cover body provided by some embodiments of the present application;

[0084] FIG14 is an enlarged schematic diagram of A in FIG13 ;

[0085] FIG15 is a schematic structural diagram of a pulling mechanism provided in some embodiments of the present application;

[0086] FIG16 is a schematic structural diagram of the moving member and the clamping arm in FIG15;

[0087] FIG17 is a schematic structural diagram of a clamping arm in an expanded state in a pulling mechanism provided by some embodiments of the present application;

[0088] FIG18 is a schematic diagram of the structure of the clamping arm about to clamp the first cover body in the pulling mechanism provided by some embodiments of the present application;

[0089] FIG19 is a schematic diagram of the structure of the clamping arm clamping the first cover body in the pulling mechanism provided by some embodiments of the present application;

[0090] FIG20 is a schematic diagram of the structure of the clamping arm clamping the first cover body for movement in the pulling mechanism provided by some embodiments of the present application;

[0091] FIG21 is a schematic diagram of the structure of a pulling mechanism provided by some embodiments of the present application, wherein a clamping arm clamps the first cover and moves the cover to a pulp discharge position;

[0092] FIG22 is a schematic structural diagram of a color tinting machine provided in some embodiments of the present application;

[0093] FIG23 is a schematic structural diagram of a color mixing machine provided in other embodiments of the present application;

[0094] FIG24 is a schematic diagram of a structure in which the inner side of a clamping arm of a pulling structure provided by some embodiments of the present application is provided with anti-slip grooves;

[0095] FIG25 is a schematic structural diagram of the clamping arm clamping the first cover body in FIG24;

[0096] FIG26 is a schematic structural diagram of a clamping assembly in an open state in a pulling structure provided by other embodiments of the present application;

[0097] FIG27 is a schematic diagram of the structure of the clamping assembly clamping the first cover body in the pulling structure provided by other embodiments of the present application;

[0098] FIG28 is a schematic structural diagram of a clamping assembly pulling a first cover to move in a pulling structure provided by other embodiments of the present application;

[0099] FIG29 is a schematic diagram of a structure of a pulling structure provided by some embodiments of the present application using an upper and lower clamping method;

[0100] FIG30 is a schematic structural diagram of FIG29 from another angle;

[0101] FIG31 is a schematic diagram of a structure in which a pulling structure according to some embodiments of the present application clamps the first cover in an up-and-down movement manner;

[0102] FIG32 is a schematic structural diagram of FIG31 showing the downward pressing portion moving along the first guide groove after contacting the first cover;

[0103] FIG33 is an enlarged schematic diagram of B in FIG32;

[0104] FIG34 is a schematic structural diagram of the lower pressing portion in FIG31 moving to a third position;

[0105] FIG35 is an enlarged schematic diagram of C in FIG34 .

[0106] Icons: 100-color mixing machine; 10-first container; 11-barrel body; 13-second cover body; 131-second magnetic attraction member; 132-second mounting groove; 133-matching portion; 101-moisturizing space; 102-first opening; 1021-first plane; 1022-second plane; 104-second opening; 20-injection pipe; 21-inlet end; 22-outlet end; 221-first pipe section; 222-second pipe section; 222a-third end; 222b-fourth end; 201-first through hole; 30-first cover body; 31-body; 310-top wall; 311-first side wall; 312-second Side wall; 313- stiffening rib; 314- first magnetic member; 315- first mounting slot; 316- clamping portion; 3160- first end; 3161- second end; 3162- cutout; 317- pull cover; 3170- protrusion; 3171- second anti-slip groove; 3172- first pull-connecting end; 3173- second pull-connecting end; 32- sleeve; 33- guide unit; 331- first hinge; 332- second hinge; 40- second container; 50- pump; 70- pulling mechanism; 71- base; 72- grabbing unit; 7201- moving member; 7202- clamping arm; 72021- groove; 720 22-first anti-slip groove; 7203-guide plate; 72031-front end; 7204-elastic member; 73-drive unit; 730-first drive member; 7301-motor base; 7302-pull rod bracket; 7303-coupling; 731-first lead screw; 732-guide rod; 733-first nut; 734-pulley; 735-synchronous belt; 7352-second lead screw; 7353-second nut; 7354-guide mechanism; 736-bracket; 737-slide rail; 7371-first guide groove; 7372-first opening end; 738-pressing portion; 7381-pressing claw; 7382 -Second guide groove; 7383-Second opening end; 7384-First upper stop end; 739-Supporting part; 7391-Tension spring; 810-Mounting frame; 8101-Gripper arm guide rail; 8102-Top spring leaf; 811-Gripper seat; 8110-Guide hole; 812 Gripper arm push column; 813-Clamping assembly; 8130-Gripper arm; 8131-Gripper arm return spring; 8132-Gripper arm drive plate; 8134-Sliding hole; 8135-Gripper arm rotating shaft; 814-Screw motor; 815-Screw; 816-Blocking plate; 817-Gripper arm guide shaft; 82-Carrying mechanism; X-First direction; Y-Second direction. DETAILED DESCRIPTION

[0107] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0108] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0109] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0110] In the description of the embodiments of this application, it should be noted that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the product of the application is typically placed when in use. These are merely for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0111] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood broadly. For example, they can refer to fixed connection, detachable connection, or integral connection; they can refer to direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0112] In the related art, there is a time interval between two dispensing actions of the dispensing nozzle of the color mixing machine, so the dispensing nozzle may be blocked. However, the moisturizing and anti-blocking effect of the dispensing nozzle of the color mixing machine in the prior art is not obvious.

[0113] While the existing patented technology, CN201410792555.4, addresses the long-standing issue of drying and clogging the end of the colorant dispensing nozzle, a global challenge facing the latex paint industry, through cost-effective means, years of use have revealed that some colorants containing solvents can cause swelling of the valve body of CN201410792555.4, potentially leading to leakage. Furthermore, colorants containing solid dyes can also cause wear and tear on the valve body, potentially leading to colorant leakage. Furthermore, the cleaning fluid used to clean residual colorant from the valve outlet can also pollute the environment.

[0114] Therefore, after years of thinking, the inventors have conceived a new design concept for preventing the drying and moisturizing of the color mixing machine's discharge end, as described in another patent application document for a "color mixing machine" filed together with this case. However, to realize the concept of the anti-drying and moisturizing structure of the color paste discharge nozzle in the "color mixing machine" patent, there must be a reliable and low-cost mechanism or device that can enable the discharge end to detach from the moisturizing and anti-drying position, move to the discharge position, complete the quantitative discharge of the color paste, and then move the discharge end at the discharge position back to the moisturizing and anti-blocking position from which it was initially detached. Without a reliable and low-cost discharge end moving mechanism or device, the anti-drying and clogging concept of the "color mixing machine" cannot be well applied to the market and cannot become an anti-drying and clogging color mixing machine product that can be accepted by users. This application is to design a low-cost, high-probability anti-drying and clogging movable discharge end that detaches from the moisturizing position to the discharge position, and can return the discharge end at the discharge position to the initial detached position after the color paste is discharged.

[0115] In view of this, an embodiment of the present application provides a color tinting machine, please refer to Figures 1 to 11, the color tinting machine 100 includes a first container 10, a first cover body 30, a pump 50 and an outlet pipe 20, the first container 10 is configured to accommodate color paste, the first container 10 has a moisturizing space 101 and a first opening 102 connected to the moisturizing space 101; the first cover body 30 is configured to be detachably combined with the first container 10 to close the first opening 102; the outlet pipe 20 has an inlet end 21 and an outlet end 22, the inlet end 21 is connected to the first container 10 through the pump 50, and the outlet end 22 is configured to inject color paste; wherein, the outlet end 22 is connected to the first cover body 30, and when the first cover body 30 closes the first opening 102, the outlet end 22 is connected to the moisturizing space 101.

[0116] In this embodiment, the first container 10 is filled with color paste. Since the color paste is liquid and has a certain volatility, a portion of the color paste in the moisturizing space 101 will evaporate and gather in the space above the liquid level of the color paste in the first container 10, making the humidity in this space higher than the humidity outside. In this way, a moisturizing space is formed above the liquid level of the color paste in the first container 10. The liquid level of the color paste in the first container 10 and the area below the liquid level are liquid, which has a higher humidity and naturally forms a moisturizing space. Therefore, the internal space of the first container 10 constitutes the above-mentioned moisturizing space 101. The top of the first container 10 has a first opening 102 that communicates with the moisturizing space, and the first cover 30 is provided on the first opening 102, thereby sealing the moisturizing space 101. The inlet end 21 of the injection tube 20 is connected to the first container 10 through the pump 50, and the outlet end 22 of the injection tube 20 is connected to the first cover body 30. When the first cover body 30 covers the first opening 102, the outlet end 22 of the injection tube 20 is located in the moisturizing space 101 of the first container 10. The humidity of the moisturizing space in the first container 10 can maintain the humidity of the outlet end 22, so that the outlet end is in a moist state, reducing the phenomenon of drying and clogging at the outlet end 22 of the injection tube 20, thereby achieving moisturizing and anti-blocking of the outlet end 22, that is, no matter whether the outlet end 22 of the injection tube 20 is above or below the liquid level of the color paste in the moisturizing space 101, the moisturizing and anti-blocking of the outlet end 22 of the injection tube 20 can be achieved, so that the accuracy of the injection amount of the outlet end 22 can be more easily met. That is, the outlet end 22 of the injection tube 20 is integrated with the first cover body 30, and the outlet end 22 relies on the first cover body 30 to communicate with the moisturizing space 101 of the first container 10. Compared with the problem that the outlet end 22 is inserted into the first container 10 and the sealing is easy to occur due to the gap, in this solution, the outlet end 22 realizes the closure of the first opening 102 of the first container 10 and the communication with the moisturizing space 101 through the first cover body 30, so that the sealing between the outlet end 22 of the injection tube 20 and the first container 10 is better, and the moisturizing effect of the outlet end is better. And when the external pulling mechanism 70 needs to pull the outlet end 22 away from the first container 10 for grouting, since the first cover body 30 and the first container 10 are detachably combined, it is only necessary to separate the first cover body 30 from the first container 10, which is more conducive to the external pulling mechanism 70 pulling the first cover body 30 together with the outlet end 22 to the injection position for grouting operation, and after the grouting is completed, it is covered on the first opening 102 of the first container 10, and the outlet end 22 of the injection tube 20 is inserted into the moisturizing space 101 to achieve moisturizing and anti-blocking.

[0117] It should be noted that the color pastes mentioned in this application include: latex paint color paste, car repair paint masterbatch, ink, wood paint color paste, nail polish, caulking agent, art paint color paste, textured paint color paste, real paint color paste and liquid ingredients for latex paint production used in factory filling and batching machines, etc.

[0118] It can be understood that the present solution is an improvement on the moisturizing solution of the tinting machine 100 , in which the outlet end 22 of the injection tube 20 is inserted into the moisturizing space 101 in the first container 10 .

[0119] Of course, when the outlet end 22 is located in the moisturizing space 101, in order to further improve the moisturizing effect of the outlet end 22 and reduce the probability of the outlet end 22 being blocked, the color paste can be injected from the outlet end 22 at regular intervals, thereby discharging the color paste that has stayed at the outlet end 22 for a period of time into the moisturizing space 101, and the fresh color paste can stay at the outlet end 22, thereby further reducing the probability of the outlet end 22 being blocked. Since the outlet end 22 is located in the moisturizing space 101, the discharged color paste will be directly discharged into the moisturizing space 101, thereby realizing the internal circulation of the color paste to enhance the moisturizing and anti-blocking effect of the outlet end 22.

[0120] The first container 10 may be a metal shell or a plastic shell to ensure the structural strength of the first container 10 . Of course, the first container 10 may also be a shell structure made of other materials, as long as the first container 10 has a certain structural strength. This application does not limit this.

[0121] The injection tube 20 can be a flexible tube to ensure that the outlet end 22 can move between the position of insertion into the moisturizing space 101 and the position of injecting the slurry outward. The injection tube 20 can be an elastic tube to further increase the movement range of the outlet end 22. Of course, it is understandable that the cross-sectional area of ​​the passage in the injection tube 20 may change during the stretching and compression process of the injection tube 20, so that after the outlet end 22 is inserted into the moisturizing space 101, the position of the slurry at the outlet end 22 is different from the port, or when the slurry is injected, the elasticity of the injection tube 20 may cause poor injection accuracy. Therefore, the material of the injection tube 20 needs to be carefully selected to minimize or eliminate the change in the cross-sectional area of ​​the passage in the injection tube 20 as much as possible.

[0122] The pump 50 can be any of a variety of pump bodies that can discharge the color paste contained in the first container 10 from the outlet end 22 of the discharge pipe 20. For example, the pump 50 can be a piston pump, a diaphragm pump, a screw pump, a gear pump, etc.

[0123] In some embodiments, referring to FIG7 , the first cover 30 has a first through hole 201, through which the outlet end 22 is passed. By providing the first through hole 201 on the first cover 30, the outlet end 22 of the pouring tube 20 is passed through the first through hole 201, thereby achieving a connection between the first cover 30 and the outlet end 22.

[0124] The outlet end 22 and the first through hole 201 may be connected in a variety of ways. For example, the outlet end 22 and the first through hole 201 may be bonded, interference fit, or threaded, or a fixing member may be first fixed to the outer wall of the outlet tube 20 near the outlet end 22, and then the outlet end 22 may be fixed to the first through hole 201 using a screw or bayonet. The specific connection method may be determined according to actual conditions.

[0125] Exemplarily, the outlet end 22 is interference-fitted with the first through hole 201. The interference fit between the outlet end 22 and the first through hole 201 has the advantages of simple connection, good centering, high load-bearing capacity, minimal weakening of the structural strength of the outlet tube 20, and good impact resistance.

[0126] In some embodiments, referring to FIG. 7 , the first cover 30 includes a body 31 and a sleeve 32. The sleeve 32 is connected to the body 31 and has a center hole, which constitutes the first through hole 201. With the sleeve 32 disposed in the first cover 30, the center hole of the sleeve 32 constitutes the first through hole 201 of the first cover 30. The spout 20 is then passed through the sleeve 32 and connected to the outlet end 22 of the spout 20, providing some protection for the spout 20.

[0127] The sleeve 32 and the body 31 may be fixedly connected or integrally formed. In this embodiment, the sleeve 32 and the body 31 are integrally formed to ensure the overall structural stability of the first cover 30 .

[0128] In some embodiments, the sleeve 32 protrudes from the inner surface and / or outer surface of the body 31 . When the cap 32 is flush with the inner surface of the body 31, the cap 32 can extend the length and area of ​​the connection with the injection pipe 20, thereby protecting and reinforcing the outlet end 22 of the injection pipe 20. When the cap 32 protrudes from the inner surface of the body 31, the cap 32 can reinforce the side of the outlet end 22 located on the inner surface of the body 31. When the cap 32 protrudes from the outer surface of the body 31, the cap 32 can reinforce the side of the injection pipe 20 located on the outer surface of the body 31. When the cap 32 protrudes from the inner and outer surfaces of the body 31, the cap 32 can reinforce both sides of the injection pipe 20 located on the outer and inner surfaces of the body 31, thereby improving the connection stability between the injection pipe 20 and the first cover 30 and avoiding the problem of poor sealing caused by repeated use due to the gap between the joint of the injection pipe 20 and the first cover 30.

[0129] In some embodiments, the body 31 includes a top wall 310, a first side wall 311, and two oppositely disposed second side walls 312. The first side wall 311 and the two second side walls 312 are connected to a bottom side of the top wall 310. The first side wall 311 and the sides of the two side walls away from the top wall 310 are enclosed by the top wall 310. The sleeve 32 is provided to protrude from the inner surface and / or outer surface of the top wall 310.

[0130] In some embodiments, a stiffening rib 313 is connected between the two second side walls 312. By connecting the stiffening rib 313 between the two second side walls 312, the stiffening rib 313 can connect the two second side walls 312 as a whole, so that the second side walls 312 of the second body 31 will not deform when squeezed, thereby enhancing the structural stability of the second body 31 and ensuring the integrity of the covering surface of the second body 31.

[0131] Of course, the stiffening ribs 313 can also be connected to the first side wall 311. By connecting the stiffening ribs 313 not only to the two second side walls 312, but also to the first side wall 311, the stiffening ribs 313 can connect the first side wall 311 and the two second side walls 312 into a whole, making the three side walls of the second body 31 more integrated, improving the deformation resistance of the second body 31, and making the corresponding covering surface less likely to deform, thereby ensuring the sealing of the second cover 13 and the first cover 30. Of course, the material of the stiffening ribs 313 can be different from that of the body 31, or it can be the same. In this embodiment, the stiffening ribs 313 and the body 31 are integrally formed.

[0132] In some embodiments, as shown in FIG8 , the outlet end 22 includes at least a first tube segment 221 and a second tube segment 222. The inner diameter of the second tube segment 222 is smaller than that of the first tube segment 221. By reducing the inner diameter of the second tube segment 222 to that of the first tube segment 221, the aperture of the outlet end 22 of the outlet pipe 20 is reduced. According to the principles of fluid mechanics, this increases the injection speed at the outlet end 22, facilitating flow interruption when the colorant is stopped. The second tube segment 222 has an axially extending third end 222a and a fourth end 222b. The third end 222a is connected to the first tube segment 221. The inner diameter of the second tube segment 222 gradually decreases from the third end 222a to the fourth end 222b. By gradually reducing the inner diameter of the second tube segment 222, i.e., by gradually reducing the inner diameter of the distal end of the outlet pipe 20, the colorant is injected from the outlet end of the outlet pipe 20 at a faster and smoother rate, thereby reducing the likelihood of dripping from the outlet end 22. Of course, a dedicated nozzle component can also be inserted into the outlet end 22 of the dispensing tube 20, so that the inner diameter of the second tube section is formed, and the diameters of the third and fourth ends are equal to and smaller than the inner diameter of the first tube section, forming the inner diameter of the outlet end 22, forming the outlet end 22 for injecting the slurry. In a storefront latex paint tinting machine, the diameter of the outlet end 22 is usually between Φ5 and Φ1.5, and the diameter of the outlet end 22 of the nozzle component is as close as possible to its outer diameter. This allows the outlet end 22 to be very thin and less prone to dripping. This is usually achieved by forming the outer surface of the outlet end 22 of the nozzle component into a tapered surface as shown in Figure 5.

[0133] As can be understood, after the color paste is injected into the outlet end 22, the remaining color paste in the outlet tube 20 or the outlet end 22 flows to the end of the outlet end 22 due to the combined effects of gravity, the surface tension of the color paste liquid, viscosity, and the color paste's wettability to the outlet end, and hangs at the outlet end 22. In severe cases, the color paste will string, and the hanging drip phenomenon will affect the color accuracy of the color paste. Of course, the thinner the wall thickness of the second tube section, the better. Of course, the end of the second tube section can also be knife-edge.

[0134] In addition, the first container 10 can be a one-piece structure or a split structure. In addition, the first container 10 can have a variety of shapes, for example, the first container 10 can be spherical, cylindrical, square, or box-shaped. In this embodiment, the first container 10 is cylindrical.

[0135] Alternatively, referring to FIG. 5 , the first container 10 includes a barrel body 11 and a second cover 13 . The top of the barrel body 11 has a second opening 104 , which is covered by the second cover 13 . The first opening 102 is located on the second cover 13 , and the first cover 30 is detachably coupled to the second cover 13 . By including the barrel body 11 and the second cover 13 , the second cover 13 seals the second opening 104 of the barrel body 11 , creating a split structure for the first container 10 . This facilitates colorant replenishment and subsequent maintenance of the first container 10 . Furthermore, since the first opening 102 is located on the second cover 13 , the first cover 30 seals the top of the first container 10 .

[0136] In some embodiments, a guide unit 33 is disposed between the first cover 30 and the second cover 13. The guide unit 33 is configured to guide the movement trajectory of the first cover 30 after separation from the second cover 13. The guide unit 33 can be of various types. For example, as shown in Figures 3 and 4, the guide unit 33 can include a first hinge 331 and a second hinge 332. The first hinge 331 has one end hinged to the second cover 13 and the other end hinged to the second hinge 332. The second hinge 332 has an end facing away from the first hinge 331 and is hinged to the first cover 30. The arrangement of the first hinge 331 and the second hinge 332 allows the first cover 30 to move in the direction in which the first hinge 331 and the second hinge 332 can swing when moving between the positions of engagement and separation with the second cover 13. This guides and limits the movement of the first cover 30, ensuring the movement accuracy of the first cover 30 and preventing the first cover 30 from shifting.

[0137] Among them, the first cover body 30 and the second cover body 13 can be connected in a variety of ways. Specifically, the first cover body 30 and the second cover body 13 can be connected by snapping, plugging, magnetic connection or threaded connection. The specific method can be determined according to actual conditions to ensure that the first cover body 30 and the second cover body 13 will not fall off easily.

[0138] Optionally, the first cover body 30 is magnetically connected to the second cover body 13. By adopting a magnetic connection between the first cover body 30 and the second cover body 13, the magnetic force can adsorb the first cover body 30 onto the second cover body 13. Under the action of the magnetic force, the sealing between the first cover body 30 and the second cover body 13 can be guaranteed. In addition, the first cover body 30 and the second cover body 13 are connected by magnetic attraction. In the process of moving the first cover body 30 from the separated state to the second cover body 13, the magnetic adsorption can play a certain positioning function, so that the separation and combination of the first cover body 30 and the second cover body 13 are more accurate. When the second cover body 13 needs to be separated from the first cover body 30, it is only necessary to overcome the magnetic force. The second cover body 13 can be taken in and placed conveniently and quickly, and is easy to implement.

[0139] The first cover 30 may be provided with one or more first magnetic members 314, and the second cover 13 may also be provided with one or more second magnetic members 131. When the first cover 30 has one first magnetic member 314, the first cover 30 and the second cover 13 are connected via one magnetic point. When the first cover 30 has multiple first magnetic members 314, the positions of the multiple first magnetic members 314 and the multiple second magnetic members 131 correspond one-to-one, and the first cover 30 and the second cover 13 are connected via multiple magnetic points.

[0140] For example, referring to Figures 9 to 12, the first cover 30 is provided with a plurality of first magnetic members 314, and the second cover 13 is provided with a plurality of second magnetic members 131. The positions of the plurality of first magnetic members 314 and the plurality of second magnetic members 131 correspond one to one. By setting the number of the first magnetic members 314 and the second magnetic members 131 to be multiple, there are multiple magnetic points between the second cover 13 and the first cover 30, and the magnetic connection between the first cover 30 and the second cover 13 is more stable. Even if one or more of the magnetic members between the first cover 30 and the second cover 13 fails, the first cover 30 can still be placed on the first opening 102 to ensure the sealing between the first cover 30 and the second cover 13.

[0141] The number of the first magnetic members 314 can be any integer value such as two, three, four, or five. In this embodiment, the number of the first magnetic members 314 is set to four, and of course the number of the second magnetic members 131 is also four. The first magnetic member 314 and the second magnetic member 131 can both be permanent magnets, and the first magnetic member 314 and the second magnetic member 131 can be magnetically connected by the principle of like charges repelling and opposite charges attracting. Alternatively, the first magnetic member 314 and the second magnetic member 131 can also be magnetically connected by a magnet and a metal component, which can also achieve a magnetic connection between the first cover 30 and the second cover 13.

[0142] Furthermore, the magnetic pole directions of each of the multiple first magnetic members 314 on the first cover 30 may be the same or different, i.e., have opposite magnetic pole directions. Regardless of whether the magnetic pole directions of each of the multiple first magnetic members 314 are the same or different, they must all be opposite to the magnetic pole directions of the second magnetic members 131 at the corresponding position on the second cover 13 and the first magnetic members 314 at the corresponding position on the first cover 30, to satisfy the principle of opposites attracting each other. That is, when the magnetic pole directions of the multiple first magnetic members 314 on the first cover 30 are the same, the magnetic pole directions of the multiple second magnetic members 131 on the second cover 13 are opposite to the magnetic pole directions of the first magnetic members 314. When the magnetic pole directions of the multiple first magnetic members 314 on the first cover 30 are different, the magnetic pole directions of the second magnetic members 131 at the corresponding position on the second cover 13 and the first magnetic members 314 at the corresponding position on the first cover 30 must all be opposite.

[0143] Exemplarily, the plurality of second magnetic elements 131 are distributed at intervals along the circumference of the first opening 102 , and the magnetic poles of two adjacent second magnetic elements 131 are in opposite directions. By making the magnetic poles of the two adjacent second magnetic elements 131 on the second cover body 13 in opposite directions, during the process of the first cover body 30 covering the first opening 102 on the second cover body 13, the first magnetic element 314 on the first cover body 30 can only magnetically cooperate with the second magnetic element 131 at the corresponding position on the second cover body 13, and will not be magnetically attracted to or affected by the second magnetic element 131 adjacent to the corresponding position on the second cover body 13. Because the magnetic poles of the first magnetic element 314 at the corresponding position on the first cover body 30 and the second magnetic element 131 adjacent to the corresponding position on the second cover body 13 have the same direction, a repulsive effect will be produced, which is equivalent to setting the magnetic poles of the two adjacent second magnetic elements 131 in opposite directions, which can play a self-positioning and correction function for the magnetic connection between the first cover body 30 and the second cover body 13, so that the first cover body 30 can be more accurately covered at the first opening 102 of the second cover body 13.

[0144] In some embodiments, the first cover 30 is provided with a plurality of first mounting slots 315, and each first magnetic member 314 is at least partially accommodated in a corresponding first mounting slot 315. The provision of the first mounting slots 315 on the first cover 30 allows the first magnetic member 314 to be installed in the first mounting slots 315. The first mounting slots 315 can provide a positioning and limiting function for the first magnetic member 314, allowing the first magnetic member 314 to be more securely mounted on the first cover 30.

[0145] In some embodiments, the second cover 13 is provided with a plurality of second mounting slots 132, and each second magnetic member 131 is at least partially accommodated in a corresponding second mounting slot 132. The provision of the second mounting slots 132 on the second cover 13 allows the second magnetic member 131 to be installed in the second mounting slots 132. The second mounting slots 132 can provide a positioning and limiting function for the second magnetic member 131, allowing the second magnetic member 131 to be more securely mounted on the second cover 13.

[0146] Among them, the number of second mounting grooves 132 corresponds to the number of second magnetic members 131. In addition, the first magnetic member 314 can have multiple states in the first mounting groove 315. For example, the top surface of the first magnetic member 314 can be flush with the top surface of the first mounting groove 315, or it can be lower than the first mounting groove 315 or protrude outside the first mounting groove 315, which can be determined according to actual conditions. Similarly, the top surface of the second magnetic member 131 can be flush with the top surface of the second mounting groove 132, or it can be lower than the second mounting groove 132 or protrude outside the second mounting groove 132, which can be determined according to actual conditions. In addition, the shapes of the first magnetic member 314 and the second magnetic member 131 can be multiple shapes. For example, the shape of the first magnetic member 314 and / or the second magnetic member 131 can be cylindrical, square, truncated cone or prismatic. In this embodiment, the shape of the first magnetic member 314 and the second magnetic member 131 is cylindrical.

[0147] In some embodiments, referring to FIG. 12 , when the first cover 30 closes the first opening 102, a portion of the first magnetic member 314 is accommodated in the second mounting groove 132, or a portion of the second magnetic member 131 is accommodated in the first mounting groove 315. When the first cover 30 closes the first opening 102, the first magnetic member 314 is partially accommodated in the second mounting groove 132, i.e., the first magnetic member 314 on the first cover 30 is partially inserted into the second mounting groove 132, or the second magnetic member 131 on the second cover 13 is partially inserted into the first mounting groove 315 of the first cover 30. This allows the first cover 30 and the second cover 13 to not only adhere to each other under the action of magnetic attraction, but also to be positioned and inserted into each other, thereby guiding and limiting the first cover 30 when it is placed on the second cover 13, thereby improving the precision and stability of the connection between the first cover 30 and the second cover 13.

[0148] When the number of the first magnetic components 314 is four, when the first cover body 30 closes the first opening 102, a portion of the two first magnetic components 314 on the first cover body 30 is accommodated in the second mounting groove 132 of the second cover body 13, and a portion of the two second magnetic components 131 on the second cover body 13 is accommodated in the first mounting groove 315 of the first cover body 30.

[0149] Optionally, the first cover 30 is snap-fitted to the second cover 13. The snap-fitting of the first cover 30 and the second cover 13 facilitates assembly and disassembly between the first cover 30 and the second cover 13, and facilitates the pulling mechanism 70 to grasp or release the first cover 30.

[0150] The first cover 30 may be provided with one or more clamping portions 316 , and the second cover 13 may be correspondingly provided with one or more matching portions 133 .

[0151] In some embodiments, referring to Figures 13 and 14 , the first cover 30 is provided with a plurality of snap-fitting portions 316, and the second cover 13 is provided with a plurality of mating portions 133, with the positions of the plurality of snap-fitting portions 316 corresponding to the positions of the plurality of mating portions 133. By providing a plurality of snap-fitting portions 316 and mating portions 133, multiple snap-fitting points are provided between the second cover 13 and the first cover 30, and the connection stability between the first cover 30 and the second cover 13 is enhanced. Even if one or more of the snap-fitting portions 316 or mating portions 133 between the first cover 30 and the second cover 13 fails, the first cover 30 can still be stably covered on the first opening 102, ensuring a seal between the first cover 30 and the second cover 13.

[0152] The number of the snap-fitting portions 316 can be any integer value, such as two, three, or four. The specific number of the snap-fitting portions 316 can be determined based on the specific practical situation. The multiple snap-fitting portions 316 on the first cover 30 can all be snap buckles, while the multiple matching portions 133 on the second cover 13 can all be latch holes. Alternatively, the multiple snap-fitting portions 316 on the first cover 30 can include snap buckles and latch holes, and the corresponding multiple matching portions 133 on the second cover 13 can also include latch holes and snap buckles. The requirement is that when the first cover 30 and the second cover 13 are snap-fitted, the latch holes and the snap buckles snap together. In this embodiment, the number of the snap-fitting portions 316 is set to two, and both the snap-fitting portions 316 on the first cover 30 are snap buckles, while both the matching portions 133 on the second cover 13 are latch holes.

[0153] In addition, the buckle can have various shapes, for example, the buckle can have a cylindrical shape, a square shape, a trapezoidal shape, etc. In this embodiment, the buckle has a cylindrical shape.

[0154] In the case where the buckle is cylindrical, it has a first end 3160 and a second end 3161 in the axial direction. The first end 3160 is closer to the first cover 30 than the second end 3161. The diameter of the buckle gradually decreases from the first end 3160 to the second end 3161. The diameter of the buckle is larger than the outer diameter of the first end 3160 and smaller than or equal to the outer diameter of the second end 3161. The diameter of the buckle is gradually reduced from the first end 3160 to the second end 3161. In this way, even if there is a slight deviation during the process of combining the first cover 30 and the second cover 13, the buckle can still be inserted into the buckle hole through the second end 3161. As the insertion depth of the buckle increases, the inner wall of the buckle hole can guide the buckle, so that the position of the first cover 30 is adaptively adjusted, thereby accurately engaging with the buckle hole on the second cover 13.

[0155] To enhance the secure connection between the first cover 30 and the second cover 13, a longitudinal notch 3162 is provided in the direction from the second end 3161 to the first end 3160 of the buckle. The notch 3162 separates the buckle into a first buckle portion and a second buckle portion. The notch 3162 is configured to guide the first buckle portion and the second buckle portion against each other when the buckle is subjected to a compressive force from the latch hole. By providing the notch 3162 on the buckle, the notch 3162 can be slightly deformed when the buckle is subjected to a compressive force from the inner wall of the latch hole, guiding the first buckle portion and the second buckle portion against each other, thereby enabling the buckle to be more securely engaged in the latch hole. After the connection is completed, a pre-tightening force is formed between the latch hole and the buckle, thereby providing a relatively secure connection between the first cover 30 and the second cover 13 and preventing the second cover 13 from loosening and falling off from the first cover 30.

[0156] There are various relationships between the plane where the first opening 102 is located and the horizontal plane. The plane where the first opening 102 is located and the horizontal plane can be perpendicular, parallel or inclined to each other.

[0157] For example, as shown in FIG13 , the plane where the first opening 102 is located is tilted relative to the horizontal plane. By tilting the plane where the first opening 102 is located relative to the horizontal plane, the first opening 102 is tilted. This allows the first cover 30 to cover the first opening 102, facilitating the pulling mechanism 70 to pull the first cover 30 apart from or join the second cover 13. Furthermore, the tilted first opening 102 allows the first cover 30 to initially move forward, or downward, or diagonally upward, or vertically upward, or diagonally forward or leftward when separating.

[0158] The first opening 102 can have various shapes, such as circular, square, rectangular, etc. The plane where the first opening 102 is located has an acute angle relative to the horizontal plane; in this embodiment, the plane where the first opening 102 is located has an angle of 45° relative to the horizontal plane. The first opening 102 can also be composed of multiple planes instead of a single plane; as shown in FIG11 , the surface where the first opening 102 is located includes at least a first plane 1021 and a second plane 1022, and the first plane 1021 and the second plane 1022 are arranged in a stepped manner. Correspondingly, the interface between the first cover 30 and the first opening 102 is arranged corresponding to the surface where the first opening 102 is located.

[0159] In some embodiments, referring to Figures 15 to 25, the tinting machine 100 further includes a second container 40 and a pulling mechanism 70. The pulling mechanism 70 is configured to connect to the first cover 30 to drive the first cover 30 to move between a first position and a second position. When the first cover 30 is in the first position, the first cover 30 closes the first opening 102. When the first cover 30 is in the second position, the first cover 30 separates from the first container 10 to inject grout into the second container 40 through the outlet end 22. The pulling mechanism 70 connects to the first cover 30 to drive the first cover 30 to move between the first position and the second position. When the first cover 30 is in the first position, the first cover 30 closes the first opening 102, thereby sealing the moisturizing space 101 within the first container 10. When the first cover 30 is in the second position, the first cover 30 separates from the first container 10 to inject grout into the second container 40 through the outlet end 22, thereby achieving outward grouting. Therefore, the setting of the pulling mechanism 70 does not require human participation, has a high degree of automation, and reduces the workload of the staff.

[0160] Among them, the second container 40 can be a metal shell or a plastic shell, such as POM plastic, so as to ensure the structural strength of the second container 40. Of course, the second container 40 can also be a shell of other materials, as long as the second container 40 has sufficient structural strength. This application does not limit this. The top of the second container 40 can be open, so that when the pulling mechanism 70 drives the first cover 30 to separate from the first container 10, it is convenient to grout the top opening of the second container 40 through the outlet end 22, making grouting more convenient. The pulling mechanism 70 can be a variety of driving mechanisms. For example, a simple pull rod moves the first cover 30 along the slide rail to close the first opening 102 or separate the first cover 30 from the first container 10 to grout the second container 40 through the outlet end 22. This is a prior art and is not further illustrated here. Similarly, the pulling mechanism 70 can also be a manipulator, such as a multi-axis manipulator commonly used in the prior art, such as a six-axis manipulator. The manipulator can achieve three-dimensional movement to complete the grasping or releasing of the first cover 30, which has high flexibility, but the cost of the manipulator is relatively high. Of course, the pulling mechanism 70 can also be a grasping mechanism. These mechanisms are also prior art and are not further illustrated here.

[0161] When the pulling mechanism 70 is a robot, the robot can be configured as the first cover body 30. The robot separates the first cover body 30 from the second cover body 13 and pulls it to the grouting position to grout into the second container 40, or moves the first cover body 30 after grouting together with the outlet end 22 back to the first opening 102 of the second cover body 13, so that the outlet end 22 is located in the moisturizing space 101 of the first container 10, completing the combination and separation of the first cover body 30 and the second cover body 13. The robot has strong flexibility and realizes grouting and sealing and moisturizing of the outlet end 22 of the outlet tube 20, but the relatively high cost increases the cost of the product.

[0162] In some embodiments, the pulling mechanism 70 includes a gripping unit 72 and a driving unit 73. The gripping unit 72 is configured to grip and release the first cover 30; the driving unit 73 is configured to drive the gripping unit 72 to move back and forth. The gripping unit 72 grips and releases the first cover 30, and the driving unit 73 acts as a power source to drive the gripping unit 72 to move back and forth, thereby separating or connecting the first cover 30 to the first container 10.

[0163] The grabbing unit 72 is connected to the driving unit 73 by power, and the grabbing unit 72 is also connected to the first cover body 30 of the outlet end 22, so that the power of the driving unit 73 can be transmitted to the first cover body 30 through the grabbing unit 72, and the grabbing unit 72 can drive the outlet end 22 to move, thereby driving the outlet end 22 to move closer to or away from the first container 10.

[0164] When the grabbing unit 72 drives the outlet end 22 close to the first container 10, the outlet end 22 can be inserted into the moisturizing space 101 inside the first container 10. Since the air in the moisturizing space 101 is humid, or the outlet end 22 is directly inserted into the color paste in the moisturizing space 101, the outlet end 22 can be moisturized, reducing the probability of the outlet end 22 drying out or clogging.

[0165] When the grabbing unit 72 drives the outlet end 22 away from the first container 10 and when the grabbing unit 72 drives the outlet end 22 to move to the grouting position, the outlet end 22 can inject the slurry into the second container 40 .

[0166] The gripping unit 72 can be a variety of gripping mechanisms. The first cover 30 also includes a pull-out cover 317, which is disposed on the body 31 of the first cover 30. When the body 31 includes a top wall 310, a first side wall 311, and two oppositely disposed second side walls 312, the pull-out cover 317 is disposed on the first side wall 311. Correspondingly, different gripping mechanisms will result in different structures of the corresponding pull-out cover 317 on the first cover 30.

[0167] In addition, the grabbing unit 72 can drive the first cover 30 to move in either a horizontal or vertical direction. When the grabbing unit 72 drives the outlet end 22 toward or away from the first container 10 in a horizontal direction, the movement trajectory of the outlet end 22 is simple. Therefore, the structure of the grabbing unit 72 that drives the outlet end 22 to move can also be relatively simple, thereby at least to a certain extent reducing the production cost of the grabbing unit 72. Of course, when the grabbing unit 72 drives the outlet end 22 toward or away from the first container 10 in a vertical direction, some scalability requirements of the color mixing machine can be met to meet product diversification.

[0168] When the grabbing unit 72 drives the first cover 30 to move in the horizontal direction, please refer to Figures 13 to 17. The grabbing unit 72 includes a moving member 7201, two clamping arms 7202, two elastic members 7204 and a guide assembly. The moving member 7201 is connected to the driving unit 73, and the driving unit 73 is configured to drive the moving member 7201 to reciprocate along the first direction X; the two clamping arms 7202 are spaced apart along the second direction Y, one end of each clamping arm 7202 is hinged to the moving member 7201, and the other end is a free end. The first direction X is perpendicular to the second direction Y; each elastic member 7204 is connected to the corresponding clamping arm 720 2 and the moving member 7201; the guide assembly includes two guide plates 7203 arranged opposite to each other along the second direction Y, and the guide plates 7203 have a front end 72031 close to the first container 10; when the moving member 7201 drives the two clamping arms 7202 to enter between the two guide plates 7203 from the front end 72031, the front end 72031 squeezes the corresponding clamping arms 7202 so that the free ends of the two clamping arms 7202 approach each other to clamp the first cover body 30; when the moving member 7201 drives the two clamping arms 7202 to extend from the front end 72031, the elastic member 7204 drives the free ends of the two clamping arms 7202 away from each other.

[0169] It is connected to the driving unit 73 through the moving part 7201, and the moving part 7201 serves as the supporting body of the grasping unit 72. The two clamping arms 7202 are set on the moving part 7201. The two clamping arms 7202 cooperate with each other to realize the clamping and release of the first cover body 30. The setting of the guide component has guiding and limiting functions. The two guide plates 7203 in the guide component cooperate with the two clamping arms 7202, so that the two clamping arms 7202 can realize the clamping and opening states, thereby completing the clamping and release of the first cover body 30. When the moving part 7201 drives the two clamping arms 7202 from the front end 72031 to enter between the two guide plates 7203, the front ends 72031 of the two guide plates 7203 can respectively squeeze the corresponding clamping arms 7202, so that the free ends of the two clamping arms 7202 are close to each other, thereby clamping the first cover body 30. At this time, the elastic part 7204 accumulates elastic potential energy; when the moving part 7201 drives the two clamping arms 7202 to extend from the front end 72031 of the guide plate 7203, the elastic part 7204 releases the elastic potential energy, thereby driving the free ends of the two clamping arms 7202 away from each other, completing the release of the first cover body 30.

[0170] The clamping arms 7202 are hinged to the movable member 7201 via a hinge shaft, and the elastic member 7204 is a torsion spring sleeved on the hinge shaft. The distance between the hinge shafts of the two clamping arms 7202 is smaller than the distance between the two guide plates 7203.

[0171] The specific working process is as follows: when the moving member 7201 drives the two clamping arms 7202 to extend from the front ends 72031 of the two guide plates 7203, the elastic member 7204 drives the free ends of the two clamping arms 7202 to move away from each other, that is, the two clamping arms 7202 are unfolded under the resetting action of the two elastic members 7204. At this time, the first cover 30 is covered on the first opening 102 of the second cover 13; the driving unit 73 drives the first screw 731 to rotate, and the first nut 733 moves in the direction away from the first container 10, that is, moves toward the rear ends of the two guide plates 7203. Since the distance between the hinge axes of the two clamping arms 7202 is smaller than the distance between the two guide plates 7203, Therefore, when the two clamping arms 7202 enter between the two guide plates 7203 from the front end 72031, the front end 72031 of the guide plate 7203 squeezes the corresponding clamping arm 7202, and the two clamping arms 7202 overcome the elastic force of the elastic member 7204, so that the two clamping arms 7202 rotate in the direction in which the free ends of the two clamping arms 7202 approach each other, and the protrusion 3170 on the inner side of the clamping arm 7202 will be embedded in the groove 72021 on the first cover body 30 to clamp the first cover body 30. The moving member 7201 drives the clamping arm 7202 to continue to move along the rear end direction of the guide plate 7203 to the grouting position, and uses the outlet end 22 on the first cover body 30 to grout into the second container 40. After the grouting of the outlet end 22 on the first cover 30 is completed, the first screw 731 is reversed, and the moving member 7201 drives the two clamping arms 7202 to move toward the front end 72031 of the guide plate 7203, until the moving member 7201 and the two clamping arms 7202 extend from the front end 72031 of the guide plate 7203. At this time, the first cover 30 is covered on the second cover 13 and closes the first opening 102, and the outlet end 22 is already located in the moisturizing space 101. The elastic member 7204 releases its elastic potential energy, driving the free ends of the two clamping arms 7202 to gradually move away from each other, thereby separating the two clamping arms 7202 from the first cover 30, until the two clamping arms 7202 are unfolded, waiting to be clamped by the first cover 30 again.

[0172] Furthermore, when the free ends of the two clamping arms 7202 are extended, the two clamping arms 7202 can be arranged in a straight line; when the free ends of the two clamping arms 7202 are close to each other and clamp the first cover 30, the two clamping arms 7202 can be parallel to each other. When the two clamping arms 7202 are extended in a straight line, the two clamping arms 7202 are completely separated from the second cover 13, which does not interfere with the movement of the color paste bucket and facilitates the movement of the next color paste bucket to the target position. Furthermore, when the two clamping arms 7202 are in the clamping state, the two clamping arms 7202 are parallel to each other, which facilitates the clamping arms 7202 to fully contact the second positioning portion of the second cover 13, thereby increasing the contact area and providing a more stable clamping of the second cover 13 by the clamping arms 7202.

[0173] In some embodiments, a guiding slope is provided on the side of the clamping arm 7202 close to the guide plate 7203. The guiding slope is in the shape of a circular arc surface. The guiding slope is configured to guide the clamping arm 7202 to rotate after being squeezed by the front end 72031 of the guide plate 7203, which is conducive to the state switching of the clamping arm 7202.

[0174] Among them, the clamping arm 7202 can have no connection relationship when clamping the first cover body 30, and clamp the first cover body 30 by squeezing. Of course, the clamping arm 7202 can also have a connection relationship when clamping the first cover body 30, so that the clamping arm 7202 can clamp the first cover body 30 more stably, improve the stability of the first cover body 30 during movement, and reduce the probability of the first cover body 30 falling during movement.

[0175] In some embodiments, referring to FIG. 16 , a groove 72021 is provided on the inner side of the clamping arm 7202, and a protrusion 3170 is provided on the first cover 30. When the clamping arm 7202 clamps the first cover 30, the protrusion 3170 is embedded in the groove 72021. By providing the groove 72021 on the clamping arm 7202 and the protrusion 3170 on the first cover 30, when the clamping arm 7202 clamps the first cover 30, the protrusion 3170 is embedded in the groove 72021, thereby achieving the clamping of the first cover 30 by the clamping arm 7202. This improves the stability of the two clamping arms 7202 when clamping the first cover 30 and moving in the area between the two guide plates 7203, thereby reducing the probability of the first cover 30 falling during movement.

[0176] However, the present invention is not limited thereto. A protrusion 3170 may be provided on the inner side of the clamp arm 7202 and the first cover body 30 , and a groove 72021 may be provided on the first cover body 30 . When the clamp arm 7202 clamps the first cover body 30 , the protrusion 3170 is embedded in the groove 72021 .

[0177] In some embodiments, the groove 72021 extends along the length of the clamping arm 7202. By configuring the groove 72021 as a long strip, even if the position of the clamping arm 7202 deviates to a certain extent, the groove 72021 is longer and can still accommodate the protrusion 3170 on the first cover 30, thereby increasing the error tolerance of the clamping arm 7202 when clamping the first cover 30.

[0178] In some embodiments, referring to Figures 24 and 25 , a plurality of first anti-slip grooves 72022 are provided on the inner side of the clamping arm 7202, and a plurality of second anti-slip grooves 3171 are provided on the first cover 30. When the clamping arm 7202 clamps the first cover 30, the plurality of first anti-slip grooves 72022 cooperate with the plurality of second anti-slip grooves 3171 to increase the static friction between the clamping arm 7202 and the first cover 30. Due to the provision of the first anti-slip grooves 72022 on the inner side of the clamping arm 7202 and the second anti-slip grooves 3171 on the first cover 30, when the clamping arm 7202 clamps the first cover 30, the plurality of first anti-slip grooves 72022 cooperate with the plurality of second anti-slip grooves 3171, thereby increasing the static friction between the first cover 30 and the clamping arm 7202. This reduces relative movement between the first cover 30 and the clamping arm 7202, thereby improving the stability of the first cover 30 during movement. The first anti-slip pattern 72022 and the second anti-slip pattern 3171 can be made of elastic material.

[0179] In other embodiments, the gripping unit 72 may also be another gripping structure. For example, the gripping unit 72 may be an electric gripper or a pneumatic gripper on a mechanical gripping arm. In the case of an electric gripper, the electric gripper is connected to a drive unit and can grip or release the first cover 30. When the drive unit drives the electric gripper close to the first cover 30, the electric gripper first grips the first cover 30, and then the drive unit drives the electric gripper to move the first cover 30 to the grouting position for grouting. Of course, the gripping unit may also be other mechanisms.

[0180] Optionally, referring to Figures 26, 27 and 28, the grabbing unit 72 may further include a mounting frame 810, a gripper seat 811, a gripper arm push column 812 and a clamping assembly 813; the gripper seat 811 is slidably disposed on the mounting frame 810 along the first direction X, and the mounting frame 810 is provided with gripper arm guide rails 8101 on both sides of the gripper seat 811, and the gripper arm guide rails 8101 are slidably matched with the gripper seat 811; a guide hole 8110 is opened on the gripper seat 811 along the first direction X, and the gripper arm push column 812 is slidably disposed in the guide hole 8110, and the driving end of the driving unit is connected to the gripper arm push column 812. The clamping assembly 813 includes two gripper arm drive plates 8132, two gripper arms 8130, and a gripper arm return spring 8131. The two gripper arms 8130 are spaced apart along the second direction Y on the gripper base 811. One end of each gripper arm 8130 is hinged to the gripper base 811, while the other end is free. Sliding holes 8134 disposed between the two gripper arm drive plates 8132 are connected to the outer cylindrical surface of the gripper arm push column 812 via a slotted sliding connection. The other ends of the two gripper arm drive plates 8132 are fixed to the two gripper arms 8130, respectively. The two gripper arms 8130 are hinged to the gripper base 811 via a gripper arm rotating shaft 8135. The gripper arm push column 812 slides in conjunction with the sliding holes 8134 on the two gripper arm drive plates 8132. The gripper arm return spring 8131 is connected between the two gripper arms 8130 at both ends, providing auxiliary return force to the gripper arms 8130. The gripper seat 811 is provided with a blocking plate 816 on the side of the guide hole 8110 away from the first container. The blocking plate 816 is configured to prevent the gripper arm push column 812 from continuing to slide in the guide hole 8110, thereby driving the gripper seat 811 to slide along the first direction X on the mounting frame 810.

[0181] The mounting frame 810 is provided with a top spring 8102, which is disposed on the gripper arm guide rail 8101 and is configured to provide a blocking force to the gripper seat 811, thereby preventing the gripper seat 811 from moving relative to the mounting frame 810 during the sliding process of the gripper arm push post 812 within the guide hole 8110. When the gripper arm push post 812 slides into contact with the blocking plate 816, the driving unit 73 drives the gripper seat 811 to compress the top spring 8102, causing the gripper seat 811 to disengage from the top spring 8102 and slide on the gripper arm guide rail 8101.

[0182] The driving unit 73 may include a screw motor 814 and a screw 815. The screw motor 814 is installed on the mounting bracket 810. The screw motor 814 is connected to the screw 815. The screw 815 is rotatably installed on the mounting bracket 810. The screw 815 is threaded with a grab arm guide shaft 817, and the grab arm guide shaft 817 is connected to the grab arm push column 812.

[0183] Alternatively, the second direction Y may be a vertical direction, i.e., the two clamping arms 7202 are spaced apart in the vertical direction, and clamp the pull-out cover 317 on the first cover 30 in an up-and-down manner. Alternatively, the second direction Y may be a horizontal direction, i.e., the two clamping arms 7202 are spaced apart in the horizontal direction, and clamp the pull-out cover 317 on the first cover 30 in a horizontally opposed manner.

[0184] Alternatively, referring to Figures 29 and 30 , the second direction can be a vertical direction. When the second direction is vertical, that is, the two clamping arms 7202 are spaced apart in the vertical direction, and the two clamping arms 7202 clamp the first cover 30 in an up-and-down manner. Similarly, the two guide plates 7203 in the guide assembly can still guide and direct the clamping arms 7202, enabling the clamping arms 7202 to clamp and release the first cover 30. Furthermore, the lower clamping arm 7202 of the two clamping arms 7202 can provide a certain degree of support for the first cover 30, thereby increasing the clamping stability of the first cover 30 and reducing the probability of the first cover 30 falling.

[0185] Optionally, the second direction Y is a horizontal direction. The two clamping arms 7202 are spaced apart in the horizontal direction, and the two clamping arms 7202 clamp the first cover 30 in a horizontal clamping manner, and can also achieve clamping and releasing of the first cover 30.

[0186] In some embodiments, the pulling mechanism 70 further includes a base 71, and the driving unit 73 and the guide assembly are both mounted on the base 71. Through the arrangement of the base 71, the base 71 provides a platform for mounting the driving unit 73 and the guide assembly.

[0187] Among them, the driving unit 73 can be a variety of linear driving mechanisms, for example, the driving unit 73 can be a cylinder, a hydraulic cylinder, a linear module, a screw nut pair mechanism, a linear motor, a synchronous belt 735 transmission mechanism or a gear rack transmission mechanism, etc.

[0188] Optionally, referring to Figure 15, the driving unit 73 includes a first driving member 730, a first lead screw 731, a guide rod 732 and a first nut 733. The first driving member 730 is mounted on the base 71, and the first lead screw 731 is rotatably mounted on the base 71 along the first direction X. The driving end of the first driving member 730 is drivingly connected to the first lead screw 731 to be configured to drive the first lead screw 731 to rotate. The guide rod 732 is arranged on the base 71 along the first direction X. The first nut 733 is threadedly engaged with the first lead screw 731, and the first nut 733 is slidingly arranged on the guide rod 732 along the first direction X. The moving member 7201 is mounted on the first nut 733. By adopting the driving unit 73 as the first screw-nut sub-mechanism, the first nut 733 and the first screw 731 are threadedly matched, and the first nut 733 is driven to move back and forth along the first screw under the action of the first driving member 730. The transmission accuracy of the first screw 731 is relatively high, which can ensure the measurement accuracy of the moving member 7201, and the structure of the first screw 731 is simple, thereby reducing the failure points, improving its reliability, and greatly reducing the manufacturing cost.

[0189] Specifically, under the driving action of the first driving member 730, the first driving member 730 drives the first screw 731 to rotate along its axial direction. Since the first nut 733 is not only threadedly engaged with the first screw 731, but also slidingly engaged with the guide rod 732, under the rotation action of the first screw 731, the guide rod 732 prevents the first nut 733 from rotating with the first screw 731. Therefore, under the limiting action of the guide rod 732, the first nut 733 can only reciprocate along the first direction X on the first screw 731, thereby driving the moving member 7201 to reciprocate along the first direction X.

[0190] Among them, the number of guide rods 732 can be one or two. In this embodiment, the number of guide rods 732 is one. The first driving member 730 is a pull rod motor, which is also a forward and reverse motor. The driving unit 73 also includes a motor base 7301 and a pull rod frame 7302. The first lead screw 731 is rotatably mounted on the pull rod frame 7302. The pull rod motor is fixedly mounted on the base 71 through the motor base 7301. The driving shaft of the pull rod motor is connected to one end of the first lead screw 731 through a coupling 7303. The other end of the first lead screw 731 is rotatably mounted on the pull rod frame 7302 through a bearing. The guide rod 732 is fixedly mounted in the pull rod frame 7302 and is arranged in the same direction as the extension direction of the first lead screw 731; the first nut 733 is threadedly engaged with the first lead screw 731 and slidably engaged with the guide rod 732. The moving member 7201 is a frame structure, and the moving member 7201 is fixedly mounted on the first nut 733. Fixed plates are fixed on both sides of the first lead screw 731 on the pull rod frame 7302 or the base 71 , and the two guide plates 7203 are fixed to the inner sides of the two fixed plates by screws respectively.

[0191] Optionally, referring to Figures 24 and 25, the drive unit 73 includes a first drive member 730, a pulley 734, and a synchronous belt 735. The first drive member 730 is mounted on the base 71, and the pulley 734 is rotatably mounted on the base 71. The first drive member 730 is configured to drive the pulley 734 to rotate. The synchronous belt 735 is coupled to the pulley 734 and extends along the first direction X. The movable member 7201 is connected to the synchronous belt 735 and moves along the synchronous belt 735 on the base 71 along the first direction X under the action of the first drive member 730. By adopting the transmission mode of the synchronous belt 735 for the drive unit 73, the movable member 7201 can be driven to move back and forth along the first direction X relatively smoothly, ensuring that the grabbing unit 72 accurately grabs or releases the first cover 30. Moreover, the drive unit 73 is a transmission method of a synchronous belt 735, and its length along the first direction X is usually shorter than that of the screw nut pair or the linear guide module, which can reduce the length of the space occupied by the mechanism. Its overall cost is relatively low, and from the perspective of daily maintenance and repair, the maintenance and disassembly of the synchronous belt 735 is more convenient and more economical.

[0192] When the grabbing unit 72 drives the first cover 30 to move in the vertical direction:

[0193] In some embodiments, referring to Figures 31 to 35, the grabbing unit 72 includes a bracket 736, a pressing portion 738 and a slide rail 737. The bracket 736 is configured for installation of the driving unit 73; the pressing portion 738 is connected to the driving unit 73, and the driving unit 73 is configured to drive the pressing portion 738 to slide on the bracket 736 in a vertical direction; the slide rail 737 is tilted on the bracket 736, and the pressing portion 738 is configured to drive the outlet end 22 to move along the extension direction of the slide rail 737, so that the outlet end 22 is close to or away from the first container 10 in the vertical and horizontal directions.

[0194] By setting the slide rail 737, the slide rail 737 can guide the movement of the pressing portion 738, and the pressing portion 738 applies downward pressure to the outlet end 22 on the first cover body 30. Under the driving action of the driving unit 73, the outlet end 22 can be driven to move closer to or away from the first container 10 in the vertical and horizontal directions. In this way, the outlet end 22 can have horizontal and vertical displacement when moving together with the first cover body 30, so that when the grabbing unit 72 drives the outlet end 22 on the first cover body 30 away from the first container 10, it can be displaced in the vertical direction. Compared with when the grabbing unit 72 drives the first cover body 30 to move in the horizontal direction for grouting, the outlet end 22 on the first cover body 30 can be closer to the second container 40, and the second container 40 can also be placed on the lower side of the first container 10, reducing the horizontal space occupied by the color mixing machine 100 and making the color mixing machine more compact.

[0195] In some embodiments, the slide rail 737 has a first guide groove 7371 extending along its length, the first cover 30 is provided with a first pulling end 3172 and a second pulling end 3173, the first pulling end 3172 can selectively slide in the first guide groove 7371, and the first guide groove 7371 has a first opening end 7372 for the first pulling end 3172 to disengage from the first guide groove 7371; the height of the slide rail 737 gradually decreases in the direction approaching the bracket 736; the grasping unit 72 further includes a supporting portion 739, the supporting portion 739 is provided on the bracket 736 through a tension spring 7391, the tension spring 7391 is extended in the vertical direction, and the upper end of the tension spring 7391 is connected to the bracket 73 6. The lower end is connected to the supporting part 739, and the supporting part 739 is slidably arranged on the bracket 736 and is located below the first open end 7372 of the slide rail; the pressing part 738 includes two oppositely arranged pressing claws 7381, the pressing claws 7381 have a second guide groove 7382, and the second pulling end 3173 can selectively slide in the second guide groove 7382, and the second guide groove 7382 has a first upper stop end 7384 close to the bracket 736 and a second open end 7383 away from the bracket 736, and the height of the first upper stop end 7384 is greater than the height of the second open end 7383; the driving unit 73 is configured to drive the pressing claw 7381 to move in the vertical direction on the bracket 736.

[0196] As shown in FIG27 , when the pressing claw 7381 moves downward to the third position, the first cover body 30 slides along the first guide groove 7371 until it is separated from the first opening end 7372 and supported by the supporting portion 739, and the second pulling end 3173 enters from the second opening end 7383 and slides along the second guide groove 7382 until it is abutted by the first upper stop end 7384, and the first cover body 30 completes the horizontal movement and approaches the bracket 736; the pressing claw 7381 continues to move downward, driving the first cover body 30 to move downward. 0 When it moves downward together with the supporting portion 739 to the grouting position, the tension spring 7391 accumulates elastic potential energy; when the pressing claw 7381 moves upward to the third position, the supporting portion 739 can push the first pulling end 3172 of the first cover body 30 through the first opening end 7372 into the first guide groove 7371, and the second pulling end 3173 is separated from the first upper stop end 7384, and can move along the first guide groove 7371 and the second guide groove 7382 to the side away from the bracket 736 to the initial position.

[0197] In the above technical solution, the second guide groove 7382 of the two pressing claws 7381 in the pressing portion 738 can be connected with the corresponding second pulling end 3173 on the first cover body 30 to apply downward pressure to the first cover body 30, and then the first pulling end 3172 of the first cover body 30 can enter from the second opening end 7383 along the first guide groove 7371 and the second pulling end 3173 and slide along the second guide groove 7382, and the height of the slide rail 737 gradually decreases in the direction close to the bracket 736, and the height of the first upper stop end 7384 is greater than the height of the second opening end 7383, so that the first When the pressing portion 738 moves downward, the cover 30 can first undergo a horizontal displacement close to the bracket 736, and then continue to move downward with the pressing portion 738. When the pressing claw 7381 moves to the third position, the first cover 30 slides along the first guide groove 7371 and the second guide groove 7382 until the first pulling end 3172 separates from the first opening end 7372 and abuts against the supporting portion 739, and the second pulling end 3173 is abutted by the first upper stop end 7384. The first cover 30 completes the horizontal movement and approaches the bracket 736, completing the positioning connection between the first cover 30 and the pressing portion 738. The pressing portion 738 continues to move downward in the vertical direction, and the tension spring 7391 accumulates elastic potential energy. When it moves to the grouting position, the outlet end 22 on the second cover 13 performs the grouting operation. When the pressing claw 7381 moves upward to the third position, the supporting portion 739 pushes the first pulling end 3172 of the first cover body 30 through the first opening end 7372 into the first guide groove 7371, and the second pulling end 3173 is separated from the first upper stop end 7384, completing the separation of the first cover body 30 and the supporting portion 739 and being able to move along the first guide groove 7371 and the second guide groove 7382 toward the side away from the bracket 736 until the first cover body 30 moves to the first opening 102 on the second cover body 13 and is combined.

[0198] The driving unit 73 includes a motor, a second lead screw 7352, a second nut 7353 and a guide mechanism 7354. The motor drives the second lead screw 7352 to rotate. The second lead screw 7352 is rotatably installed on the stand. The second nut 7353 is threadedly engaged with the second lead screw 7352. The guide mechanism 7354 provides a guiding function for the second nut 7353. The lower pressure part 738 is installed on the second nut 7353.

[0199] Of course, the grabbing unit 72 may also include a moving member 7201 and a pulling claw, wherein the moving member 7201 is connected to the driving end of the driving unit 73, and the pulling claw is provided with a hook portion on the moving member 7201, and a guide surface is provided on the free end of the pulling claw. Correspondingly, a hanging portion is provided on the pull cover 317 on the first cover body 30, and the hanging portion has a hanging groove, and the opening of the hanging hole faces one side of the first cover body 30, that is, the side away from the moving member 7201. When the moving member 7201 moves in a direction away from the first container 10, the hook portion of the pulling claw cooperates with the hanging hole, and then the moving member 7201 continues to move in a direction away from the first container 10, and the pulling claw moves with the first cover body 30 to the pouring position for grouting. When the moving member 7201 moves with the first cover 30 toward the first container 10 until the first cover 30 covers the first opening 102 , the moving member 7201 continues to move toward the first container 10 to separate from the hanging portion.

[0200] In some embodiments, referring to FIG. 22 , the number of first containers 10 is set to be multiple, that is, they can be distributed in a circle as shown in FIG. 18 , or they can be arranged in a straight line, as shown in FIG. 23 . The color mixing machine includes a carrying mechanism 82 , on which multiple first containers 10 are spaced apart along the circumference. The carrying mechanism 82 is configured to carry the multiple first containers and selectively move the multiple first containers to a position for docking with the pulling mechanism 70 . In the case where the multiple first containers 10 are distributed in a circle, the carrying mechanism 82 is a rotating mechanism. Of course, the pulling mechanism 70 can also be rotated to achieve alignment with a specific first container 10. As shown in FIG. 23 , when the multiple first containers 10 are arranged in a straight line, the carrying mechanism 82 and the pulling mechanism 70 can move relative to each other in a straight line to move a desired first container 10 to a position for docking with the pulling mechanism 70.

[0201] It should be noted that, unless there is any conflict, the features in the embodiments of this application can be combined with each other.

[0202] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application. Industrial Applicability

[0203] The humidity of the moisturizing space in the first container of the color mixing machine of the present application can maintain the humidity of the outlet end, so that the outlet end is in a moist state, reducing the phenomenon of drying and clogging at the outlet end of the injection tube, thereby achieving moisturizing and anti-clogging of the outlet end, making it easier to meet the accuracy of the injection amount at the outlet end.

Claims

1. A color mixing machine, characterized in that, Comprising: A pump; A first container configured to hold color paste, the first container having a moisture retention space and a first opening communicating with the moisture retention space; A first lid configured to be detachably coupled to the first container to close the first opening; A dispensing tube having an inlet end and an outlet end, the inlet end being connected to the first container through the pump, and the outlet end being configured to dispense color paste; Wherein, the outlet end is connected to the first lid, and when the first lid closes the first opening, the outlet end communicates with the moisture retention space.

2. The color mixer according to claim 1, characterized in that, The first lid has a first through hole, and the outlet end passes through the first through hole.

3. The color mixer according to claim 2, characterized in that, The outlet end has an interference fit with the first through hole.

4. The color mixer according to claim 2, wherein The first lid includes a body and a sleeve, the sleeve is connected to the body, and the sleeve has a central hole, and the central hole constitutes the first through hole.

5. The color mixer according to claim 4, characterized in that, The sleeve protrudes from the inner surface and / or the outer surface of the body.

6. The color mixer according to any one of claims 1-5, characterized in that The first container includes a barrel body and a second lid, the top of the barrel body has a second opening, and the second lid is provided on the second opening; the first opening is provided on the second lid, and the first lid is detachably coupled to the second lid.

7. The color mixer according to claim 6, characterized in that, The first lid and the second lid are magnetically connected.

8. The color mixer according to claim 7, characterized in that, The first lid is provided with a plurality of first magnetic members, the second lid is provided with a plurality of second magnetic members, and the positions of the plurality of first magnetic members and the plurality of second magnetic members correspond one by one.

9. The color mixer according to claim 8, characterized in that, The plurality of second magnetic members are spaced apart along the circumference of the first opening, and the magnetic pole directions of two adjacent second magnetic members are opposite.

10. The color mixer according to claim 8, characterized in that, The first lid is provided with a plurality of first mounting grooves, and each of the first magnetic members is at least partially received in the corresponding first mounting groove.

11. The color mixer according to claim 10, characterized in that, The second lid is provided with a plurality of second mounting grooves, and each of the second magnetic members is at least partially received in the corresponding second mounting groove.

12. The color mixer according to claim 11, characterized in that, When the first lid closes the first opening, a part of the first magnetic member is received in the second mounting groove; or, a part of the second magnetic member is received in the first mounting groove.

13. The color mixer according to claim 6, wherein The first lid and the second lid are snap-connected.

14. The color mixer according to claim 13, characterized in that, The first lid is provided with a plurality of snap-connection portions, the second lid is provided with a plurality of cooperating portions, and the positions of the plurality of snap-connection portions and the plurality of cooperating portions correspond one by one.

15. The color mixer according to claim 6, characterized in that, A guiding unit is connected between the first lid and the second lid, and the guiding unit is configured to guide the movement track after the separation of the first lid and the second lid.

16. The color mixer according to any one of claims 1-5, characterized in that, The plane where the first opening is located is inclined relative to the horizontal plane.

17. The color mixer according to any one of claims 1-5, characterized in that, The color matching machine further includes: A second container; A pulling mechanism configured to be connected to the first lid to drive the first lid to move between a first position and a second position. When the first lid is in the first position, the first lid closes the first opening; when the first lid is in the second position, the first lid is separated from the first container to inject color paste into the second container through the outlet end.

18. The color mixer according to claim 17, wherein, The pulling mechanism includes: A base; A grasping unit configured to grasp and release the first lid; A driving unit installed on the base and configured to drive the grasping unit to reciprocate.

19. The color mixer according to claim 18, characterized in that, The grasping unit includes: A moving member connected to the driving unit, and the driving unit is configured to drive the moving member to reciprocate along a first direction; Two clamping arms spaced apart along a second direction, one end of each clamping arm is hinged to the moving member, and the other end is a free end, and the first direction is perpendicular to the second direction; Two elastic members, each elastic member connecting the corresponding clamping arm and the moving member; A guiding assembly disposed on the base, including two guiding plates oppositely disposed along the second direction, and the guiding plates have a front end close to the first container; When the moving member drives the two clamping arms to enter between the two guiding plates from the front end, the front end presses the corresponding clamping arm, so that the free ends of the two clamping arms approach each other to clamp the first cover; when the moving member drives the two clamping arms to extend out from the front end, the elastic member drives the free ends of the two clamping arms to move away from each other to release the first cover.

20. The color mixer according to claim 19, characterized in that, A groove is provided on the inner side of the clamping arm, and a protrusion is provided on the first cover. When the clamping arm clamps the first cover, the protrusion is embedded in the groove.

21. The color mixer according to claim 20, characterized in that, The groove extends along the length direction of the clamping arm.

22. The color mixer according to claim 19, characterized in that, A plurality of first anti-slip lines are provided on the inner side of the clamping arm, and a plurality of second anti-slip lines are correspondingly provided on the first cover. When the clamping arm clamps the first cover, the plurality of first anti-slip lines cooperate with the plurality of second anti-slip lines to increase the static friction between the clamping arm and the first cover.

23. The color mixer according to claim 19, wherein The driving unit includes: A first driving member, a first lead screw, a guiding rod, and a first nut. The first driving member is installed on the base, and the first lead screw is rotatably installed on the base along the first direction; the first driving member is connected to the first lead screw to be configured to drive the first lead screw to rotate. The guiding rod is disposed on the base along the first direction. The first nut is in threaded cooperation with the first lead screw, and the first nut is slidably disposed on the guiding rod along the first direction, and the moving member is installed on the first nut.

24. The color mixer according to claim 19, characterized in that, The driving unit includes a first driving member, a pulley, and a synchronous belt. The first driving member is installed on the base, the pulley is rotatably installed on the base, the first driving member is configured to drive the pulley to rotate, the synchronous belt is in transmission cooperation with the pulley and extends along the first direction; the moving member is connected to the synchronous belt and reciprocates along the first direction on the base under the action of the first driving member.

25. The color mixer according to claim 18, characterized in that, The grasping unit includes: A bracket configured to install the driving unit; A pressing portion connected to the driving unit, and the driving unit is configured to drive the pressing portion to slide vertically on the bracket; A slide rail is inclinedly disposed on the bracket, and the pressing portion is configured to drive the outlet end to move along the extending direction of the slide rail, so that the outlet end approaches or moves away from the first container in the vertical and horizontal directions.

26. The color mixer according to claim 25, characterized in that, The slide rail has a first guide groove extending along its length direction, the first cover body is provided with a first pull-connection end and a second pull-connection end, the first pull-connection end can selectively slide in the first guide groove, and the first guide groove has a first opening end for the first pull-connection end to be separated from the first guide groove; the height of the slide rail gradually decreases in the direction approaching the bracket; The grabbing unit further includes a supporting portion, which is arranged on the bracket through a tension spring, the tension spring is extended in a vertical direction, the upper end of the tension spring is connected to the bracket, and the lower end is connected to the supporting portion, the supporting portion is slidably arranged on the bracket and is located directly below the first opening end of the slide rail; The pressing portion comprises two pressing claws arranged opposite to each other, the pressing claws having a second guide groove, the second pulling end can selectively slide in the second guide groove, the second guide groove has a first upper stop end close to the bracket and a second open end away from the bracket, the height of the first upper stop end is greater than the height of the second open end; the driving unit is configured to drive the pressing claw to move along the vertical direction of the bracket; Among them, when the pressing claw moves downward to the third position, the first pulling end of the first cover body slides along the first guide groove until it is separated from the first opening end and is supported by the supporting part, and the second pulling end enters from the second opening end and slides along the second guide groove until it is abutted by the first upper stop end, and the first cover body completes the horizontal movement and approaches the bracket; when the pressing claw continues to move downward, driving the first cover body together with the supporting part to move downward to the grouting position, the tension spring accumulates elastic potential energy; when the pressing claw moves upward to the third position, the supporting part can push the first pulling end of the first cover body through the first opening end into the first guide groove, and the second pulling end is separated from the first upper stop end, and can move along the first guide groove and the second guide groove to the side away from the bracket to the initial position.

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