Injection molding machine cleaning device

Abstract

The application provides an injection molding machine cleaning device, and relates to the technical field of screw cleaning, which comprises a cleaning machine body and a cleaning mechanism arranged on the cleaning machine body to clean the body of an injection molding machine screw, wherein the cleaning mechanism comprises a support assembly for positioning the two end portions of the screw body, a mounting column arranged on one side of the screw body through a moving assembly, a rotating assembly arranged on the moving assembly and used to control the rotation of the mounting column around the axis, and a cleaning assembly arranged on the mounting column and used to spray cleaning liquid on the surface of the screw body through two groups of spray heads, the two groups of spray heads are arranged on the end portion of the mounting column close to the screw body, the two groups of spray heads are symmetric about the center of the end portion of the mounting column, and the spraying directions of the two groups of spray heads are symmetric about the axis of the mounting column; the injection molding machine screw can be efficiently, comprehensively and flexibly cleaned, and the cleaning efficiency and effect of the injection molding machine screw are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of screw cleaning, in particular to a cleaning device for injection molding machine. BACKGROUND

[0002] In the production process of injection molding machine, the screw of injection molding machine is a key component, and its surface will gradually accumulate plastic residues, impurities and other dirt. These dirt not only affects the quality of injection molding products, causing surface defects, defects and other problems, but also reduces the production efficiency of injection molding machine, increases the equipment failure rate and shortens the service life of the screw.

[0003] At present, the cleaning method for the screw of injection molding machine is relatively traditional and single. The common method is to use cleaning tools and cleaning agents to wipe and clean manually. This method is low in efficiency, high in labor intensity, and difficult to clean all parts of the screw, especially the complex structure parts such as the spiral groove of the screw, and it is difficult to achieve ideal cleaning effect.

[0004] There are also some simple mechanical devices for cleaning, but these devices are often simple in structure and limited in function. Some cleaning devices can only clean a certain fixed area of the screw, cannot be adjusted according to different models and sizes of the screw, and cannot realize the all-round cleaning of the surface of the screw. The cleaning nozzle angle of some devices is fixed and cannot be flexibly adjusted, so that the cleaning liquid cannot uniformly cover the surface of the screw, affecting the cleaning effect. Therefore, it is of great practical significance to develop a kind of injection molding machine screw cleaning device which can clean efficiently, comprehensively and flexibly. SUMMARY

[0005] In view of the above problems, the present application provides a cleaning device for injection molding machine.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a cleaning device for injection molding machine, comprising a cleaning machine body and a cleaning mechanism arranged on the cleaning machine body to clean the screw body of the injection molding machine. The cleaning mechanism comprises a support assembly for positioning the both ends of the screw body, an installation column arranged on one side of the screw body through a moving assembly, a rotating assembly arranged on the moving assembly and controlling the rotation of the installation column around the axis, and a cleaning assembly arranged on the installation column and spraying cleaning liquid on the surface of the screw body through two groups of spray heads. The two groups of spray heads are arranged on the end of the installation column close to the screw body, and the two groups of spray heads are symmetric about the center of the end of the installation column, and the spray directions of the two groups of spray heads are symmetric about the axis of the installation column.

[0007] When cleaning the surface of different types of screw bodies, the support assembly fixes the two ends of the screw body and controls the screw body to rotate around the axial direction, the moving assembly drives the mounting column to move along the length direction of the screw body, the cleaning assembly controls two groups of spray heads to spray cleaning liquid to the screw body and adjusts the spray direction of the two groups of spray heads, and the rotating assembly controls the mounting column to rotate around the axial direction to comprehensively clean the screw body.

[0008] Preferably, the rotating assembly comprises a fixed column arranged on the moving assembly and rotatably sleeved on one end of the mounting column, and a rotating piece arranged on the moving assembly and controlling the mounting column to rotate around the axial direction.

[0009] Preferably, the rotating piece comprises a linkage gear sleeved on the side surface of the mounting column, and a motor arranged on the moving assembly and having a rotating gear arranged on the output end, the rotating gear being engaged with the linkage gear.

[0010] Preferably, each group of spray heads comprises two cleaning spray heads rotatably sleeved on the end of the mounting column through the rotating rods, the cleaning spray heads being connected to the cleaning assembly, and the spray directions of the two cleaning spray heads being symmetrically opposite to each other with a median plane passing through the centers of the two cleaning spray heads as the symmetry plane.

[0011] Preferably, the cleaning assembly comprises four liquid supply pipes connected to the four cleaning spray heads respectively, four control rods arranged in the mounting slots on the end of the mounting column away from the rotating rods, and a control piece arranged in the mounting slot, one end of each of the four control rods being vertically arranged on the side surface of a different rotating rod and being arranged along the spray direction of the cleaning spray head arranged on the corresponding rotating rod, and the control piece being connected to the end of the four control rods away from the rotating rods.

[0012] Preferably, the control piece comprises two first horizontal rods parallel to each other and arranged above the bottom wall of the mounting slot, and a control structure controlling the two first horizontal rods to move away from or close to each other along the length direction of the rods, and the end of each of the four control rods being rotatably connected to the control structure.

[0013] Preferably, the control piece further comprises a limiting structure, the limiting structure comprising two elastic structures arranged on the ends of the two first horizontal rods away from each other, the two elastic structures being arranged along the length direction of the corresponding first horizontal rod and being connected to the slot wall at the other end, and the angle between the spray direction of the cleaning spray head and the axial direction of the mounting column being 15° when the elastic structure is in the normal elongation state.

[0014] Preferably, the control structure comprises a universal ball rotatably embedded in the center of the top of each of the first horizontal rods, and a control unit arranged in the mounting slot, the control unit being used to adjust the distance between the universal ball and the bottom wall of the mounting slot.

[0015] Preferably, the control unit comprises a pressing block arranged above the universal ball at the bottom end of the universal ball, a second horizontal rod arranged on the inner wall of the mounting groove and parallel to the pressing block, a second limiting rod penetrating the second horizontal rod in the axial direction of the mounting column and connected to the pressing block at the bottom end, a limiting spring movably arranged on the second limiting rod and connected to the second horizontal rod and the pressing block at both ends, and a pushing block arranged at one side of the pressing block, the opposite surfaces of the pushing block and the pressing block being matching inclined surfaces, and the bottom wall of the pressing block mounting groove moving when the pushing block moves towards the pressing block.

[0016] Preferably, the cleaning mechanism further comprises a distance adjusting assembly for controlling the mounting column to approach or move away from the screw body, and a collecting assembly arranged below the screw body for recycling the cleaning liquid after cleaning the screw body.

[0017] The beneficial effects of the present application are:

[0018] 1. The two ends of the screw body are fixed by the supporting assembly, the screw body is controlled to rotate around the axis, the mounting column is moved along the length direction of the screw body by the moving assembly, the cleaning assembly controls the two groups of spray heads to spray cleaning liquid to the screw body, the spray directions of the two groups of spray heads are adjusted, and the mounting column is controlled to rotate around the axis by the rotating assembly. The multi-dimensional and multi-action cooperation can comprehensively and completely clean the shaft of different models of screw bodies, effectively remove dirt on the surface of the screw and the complex structure parts such as the spiral groove, greatly improve the cleaning effect, improve the cleaning efficiency, and ensure the normal operation of the injection molding machine and the quality of the injection molding products.

[0019] 2. The spray direction of the spray head is flexibly adjusted, the spray angle and range of the cleaning liquid can be accurately adjusted according to the size, shape and dirt distribution of different models of screws, the cleaning liquid can uniformly and accurately cover the surface of the screw, the use efficiency of the cleaning liquid is improved, and the cleaning effect is further enhanced. DETAILED DESCRIPTION

[0020] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application and are used to explain the present application, and do not constitute a limitation on the present application, in which:

[0021] Figure 1 The injection molding machine cleaning device provided by the present application is a simple structure schematic diagram.

[0022] Figure 2 The internal structure of the injection molding machine cleaning device provided by the present application is a schematic diagram.

[0023] Figure 3 The distance adjusting assembly and the moving assembly of the present application are structural schematic diagrams.

[0024] Figure 4The schematic view of the mounting column and cleaning nozzle structure of the present application.

[0025] Figure 5 The schematic view of the control structure of the present application.

[0026] Figure 6 The schematic view of the control structure of the present application.

[0027] Figure 7 The schematic view of the positioning rod and positioning column structure of the present application.

[0028] Figure 8 The schematic view of the positioning rod and positioning column structure of the present application.

[0029] Figure 9 The schematic view of the fixed leaf installation on the transmission rod of the present application.

[0030] Figure 10 The schematic view of the support assembly structure of the present application.

[0031] In the figure: 1, cleaning machine body; 2, waste liquid recovery pipe; 3, sliding rail; 4, connecting block; 5, fixed column; 6, screw body; 7, recovery groove body; 8, support block; 9, distance adjusting groove; 10, distance adjusting block; 11, distance adjusting screw; 12, driving wheel; 13, driven gear; 14, driving gear; 15, first limiting rod; 16, driving motor; 17, sliding rod; 18, adjusting rod; 19, linkage rod; 20, vertical rod; 21, lifting screw; 22, lifting block; 23, fixed rack; 24, sliding block; 25, moving gear; 26, rotating gear; 27, rotating ring; 28, linkage gear; 29, mounting column; 30, positioning rod; 31, positioning column; 32, mounting groove; 33, rotating rod; 34, cleaning nozzle; 35, control rod; 36, first cross rod; 37, universal ball; 38, telescopic rod; 39, positioning spring; 40, second cross rod; 41, second limiting rod; 42, limiting spring; 43, extrusion block; 44, pushing block; 45, control screw; 46, fixed leaf; 47, partition plate; 48, transmission rod. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the following further describes the present application in combination with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present application, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0033] At present, the cleaning method of the injection molding machine screw is relatively traditional and single. Commonly, some basic cleaning machines are used, and the use process is usually as follows:

[0034] First, the injection molding machine needs to be stopped, and the screw that needs to be cleaned is removed and placed in a specific cleaning tank of the cleaning machine. For some simple cleaning machines, they may only be equipped with a simple container to soak the screw in a container filled with cleaning solution, relying on the natural dissolving action of the cleaning solution to remove the dirt on the surface of the screw. In this way, the contact between the cleaning solution and the surface of the screw is not sufficient, especially for complex structure parts such as the spiral groove of the screw, it is difficult for the cleaning solution to penetrate into it, resulting in poor cleaning effect and many dirt cannot be effectively removed.

[0035] Some cleaning machines are equipped with simple stirring devices, which are started during the cleaning process to make the cleaning solution flow in the cleaning tank, thereby increasing the contact opportunities between the cleaning solution and the surface of the screw. However, this stirring method is often one-way and fixed, and cannot fully and uniformly clean all parts of the screw. Moreover, the stirring intensity and range are difficult to accurately control, and for some stubborn dirt, the flow impact force generated by stirring may not be enough to remove it.

[0036] In addition, some cleaning machines are provided with spray heads to clean the screw by high-pressure spraying of cleaning solution. However, the position and angle of these spray heads are usually fixed and cannot be flexibly adjusted according to the shape, size of the screw and the distribution of dirt during the cleaning process. This results in that when cleaning different types of screws, the cleaning solution sprayed by the spray head cannot accurately cover the surface of the screw, some areas may be over-sprayed, causing waste of cleaning solution, while other areas may not be sprayed, leaving cleaning dead angles.

[0037] At the same time, most of the existing cleaning machines lack positioning and rotating functions of the screw. During the cleaning process, the screw is stationary, which makes the cleaning solution only flush the screw from a fixed side or several directions, and cannot achieve full-area cleaning of the surface of the screw. Moreover, since the screw cannot be rotated, it is difficult for the cleaning solution to completely flush out the dirt in the spiral groove, affecting the overall cleaning effect.

[0038] In addition, the existing cleaning machines generally do not have cleaning solution recycling devices. During the cleaning process, the cleaning solution flows randomly, not only causing a lot of waste and increasing production costs, but also polluting the working environment. The flowing cleaning solution may corrode the ground and other parts around the equipment, affecting the normal operation and service life of the equipment, and also bringing great difficulty to the subsequent environmental cleaning work.

[0039] In summary, the existing cleaning machines for cleaning the screw of the injection molding machine in the prior art have many problems in the use process, such as poor cleaning effect, inability to adapt to different types of screws, lack of full-area cleaning ability, waste of cleaning solution and environmental pollution, etc.

[0040] In view of the problems in the screw body 6 cleaning process in the prior art, the application provides an injection molding machine cleaning device which can clean the injection molding machine screw conveniently, efficiently, comprehensively and flexibly, and improve the cleaning efficiency and effect of the injection molding machine screw.

[0041] Embodiment 1: Reference Figures 1-5 The injection molding machine cleaning device shown in the figure comprises a cleaning machine body 1 and a cleaning mechanism arranged on the cleaning machine body 1 to clean the injection molding machine screw body 6. The cleaning mechanism comprises a support assembly for positioning the two end portions of the screw body 6, an installation column 29 arranged on one side of the screw body 6 through a moving assembly, a rotating assembly arranged on the moving assembly and controlling the rotation of the installation column 29 around the axis, and a cleaning assembly arranged on the installation column 29 and spraying cleaning liquid on the surface of the screw body 6 through two groups of spray heads. The two groups of spray heads are arranged on the end portion of the installation column 29 close to the screw body 6, and the two groups of spray heads are symmetric about the center of the end portion of the installation column 29, and the spraying directions of the two groups of spray heads are symmetric about the axis of the installation column 29.

[0042] When cleaning the surfaces of different types of screw bodies 6, the support assembly fixes the two end portions of the screw body 6 and controls the rotation of the screw body 6 around the axis, the moving assembly drives the installation column 29 to move along the length direction of the screw body 6, the cleaning assembly controls the two groups of spray heads to spray cleaning liquid on the screw body 6 and adjusts the spraying directions of the two groups of spray heads, and the rotating assembly controls the rotation of the installation column 29 around the axis, so as to comprehensively clean the body of the screw body 6.

[0043] When the screw body 6 is cleaned, first, the injection molding machine screw body 6 to be cleaned is placed on the support assembly in the cleaning machine body 1, the two end portions of the screw body 6 are accurately positioned and firmly fixed, and the screw body 6 is ensured to remain stable during the cleaning process and cannot shake or displace. At the same time, the power supply of the entire cleaning device is started, and each component enters the standby state. The support assembly controls the slow and stable rotation of the screw body 6 around its own axial direction according to the preset program. The rotation of the screw body 6 enables each part of its surface to be exposed in the cleaning area in turn, preparing for subsequent comprehensive cleaning. At this time, the moving assembly starts to work, driving the mounting column 29 to move uniformly along the length direction of the screw body 6. The mounting column 29 starts from one end of the screw body 6 and gradually moves to the other end, ensuring that the entire length range of the screw body 6 can be covered without missing any part. At the same time that the mounting column 29 moves, the rotating assembly and the cleaning assembly are started, controlling the mounting column 29 to rotate around its own axial direction while the cleaning assembly controls the cleaning liquid to be sprayed onto the surface of the screw body 6 through the spray head. In the case of the rotation of the mounting column 29 and the rotation of the screw body 6 itself, the surface of the screw body 6 can be aligned at different angles, so as to realize multi-angle cleaning of the screw.

[0044] The embodiment realizes comprehensive cleaning of the surface of the screw body 6 from multiple dimensions through the rotation of the screw body 6 around the axial direction, the movement and rotation of the mounting column 29 around the axial direction, and the adjustment of the spray angle of the spray head. It further accelerates the contact and reaction of the cleaning liquid with the dirt on the surface of the screw body 6, shortens the cleaning time, and improves the cleaning efficiency. When cleaning screw bodies 6 of different sizes and models, it is also convenient to fully clean the helical super, root, or even variable pitch threads of screw bodies 6 of different sizes and models. The dirt and residues accumulated on the surface of the screw body 6 for a long time are effectively removed, and the cleaning effect of the screw body 6 is improved.

[0045] In the above embodiment 1, the rotating assembly controls the mounting column 29 to rotate around the axial direction. The following solutions are given in this embodiment.

[0046] As shown in Figures 2-4 The rotating assembly includes a fixed column 5 arranged on the moving assembly and having one end rotatably sleeved on the mounting column 29, and a rotating piece arranged on the moving assembly and controlling the mounting column 29 to rotate around the axial direction.

[0047] The embodiment controls the rotation of the mounting column 29 by adding a separate driving structure. The mounting column 29 is first rotated by the fixed column 5 sleeved on the mounting column 29. On the basis of ensuring that the mounting column 29 can be controlled to move along the screw body 6 by the moving assembly, the mounting column 29 can be rotated around the axis. The rotating member can drive the mounting column 29 to rotate around the axis.

[0048] It can be understood that the rotation of the mounting column 29 around the axis arranged with the fixed column 5 can be realized in various ways. The embodiment gives the following solutions.

[0049] As shown in Figure 2 and Figure 3 , the rotating member includes a linkage gear 28 sleeved on the side surface of the mounting column 29, and a motor arranged on the moving assembly and having a rotating gear 26 arranged at the output end. The rotating gear 26 is engaged with the linkage gear 28.

[0050] The embodiment controls the rotation of the rotating gear 26 by the motor, and the rotating gear 26 is engaged with the linkage gear 28. Thus, the rotation of the mounting column 29 around the axis thereof can be controlled. Therefore, the rotation of the mounting column 29 can be controlled when the moving assembly drives the mounting column 29 to move along the length direction of the screw body 6.

[0051] Embodiment 3: For the above-mentioned embodiment 2, a separate driving structure is needed to control the rotation of the mounting column 29 around the axis. The embodiment gives the following solutions.

[0052] As shown in Figure 9 , the rotating assembly includes a fixed column 5 arranged on the moving assembly and having one end rotatably sleeved on the mounting column 29, a partition plate 47 fixedly arranged in the mounting slot 32 at the top of the fixed column 5, a transmission rod 48 vertically fixedly arranged at the top center position of the partition plate 47, and a plurality of fixed vanes 46 vertically arranged on the top rod body of the transmission rod 48 in a circumferential array. The partition plate 47 is sealingly designed between the slot wall of the mounting slot 32, and the upper part of the partition plate 47 is a conveying channel of the cleaning assembly for conveying cleaning. A pipeline connected with the conveying channel and the spray head is arranged through the partition plate 47, for conveying cleaning liquid into the spray head. The fixed vanes 46 are located in the conveying channel.

[0053] When the cleaning assembly controls the cleaning liquid to flow through the conveying channel and the pipeline to the spray head to clean the surface of the screw body 6, the flowing cleaning liquid drives the plurality of fixed vanes 46 (similar to a fan blade structure) arranged on the transmission rod 48 to move on the basis of the rotational connection of the fixed column 5 to the mounting column 29, and the fixed vanes 46 are arranged obliquely, thereby driving the transmission rod 48 to rotate, so that the additional driving structure for controlling the rotation of the mounting column 29 around the axis is avoided. Compared with the embodiment 2, the advantage of this structure is that the mounting column 29 is driven to rotate during the conveying of the cleaning liquid, thereby reducing the energy consumption. Compared with the embodiment 2, the disadvantage is that the rotating speed of the mounting column 29 cannot be accurately adjusted, and only a fixed rotating speed can be installed for rotation.

[0054] Embodiment 4: For the cleaning of the screw body 6 by the spray head of the cleaning assembly in the above-mentioned embodiments 1, 2 and 3, the following solutions are given.

[0055] As shown in Figures 4-6 each group of spray heads includes two cleaning spray heads 34 arranged on the end of the mounting column 29 through the rotating rod 33, and the two cleaning spray heads 34 are connected to the cleaning assembly. The spray directions of the two cleaning spray heads 34 are symmetrically opposite to each other with the median plane passing through the centers of the two cleaning spray heads 34 as the symmetry plane.

[0056] In this embodiment, the four cleaning spray heads 34 are symmetrically arranged about the central connecting median plane, so that the two cleaning spray heads 34 on one side of the center of the end of the mounting column 29 are symmetrically arranged with the two cleaning spray heads 34 on the other side of the center of the end of the mounting column 29. The spray paths of the two cleaning spray heads 34 on one side of the center of the end of the mounting column 29 form a downward and away from each other path (i.e., the spray path of the two cleaning spray heads 34 on one side of the center of the end of the mounting column 29 forms an eight-shaped path), which ensures that the spray paths of the two cleaning spray heads 34 away from each other are away from the axis of the mounting column 29, and the spray paths of the two cleaning spray heads 34 close to each other are close to the axis of the mounting column 29. During the movement of the mounting column 29 along the length direction of the screw body 6 by the moving assembly, the rotation of the mounting column 29 itself causes the cleaning liquid sprayed by the two cleaning spray heads 34 on the outer side to clean the groove wall away from the moving direction of the mounting column 29 first, and then during the movement of the mounting column 29, the cleaning liquid sprayed by the two cleaning spray heads 34 in the middle cleans the groove wall toward the moving direction of the mounting column 29, thereby achieving comprehensive cleaning of the surface dirt of the screw body 6 and improving the cleaning effect of the surface of the screw body 6.

[0057] It can be understood that the direction of the cleaning liquid sprayed by the cleaning nozzle 34 can be realized in various ways. The present embodiment gives the following solution:

[0058] As shown in Figure 5 and Figure 6 , the cleaning assembly comprises a liquid supply pipe connected to the four cleaning nozzles 34 respectively, four control rods 35 arranged in the mounting slot 32 of the mounting column 29 away from the end of the rotating rod 33, and a control member arranged in the mounting slot 32. One end of the four control rods 35 is arranged vertically on the side surface of the different rotating rods 33 one by one, and is arranged along the spraying direction of the cleaning nozzle 34 arranged on the corresponding rotating rod 33; the control member is connected to the end of the four control rods 35 away from the rotating rod 33.

[0059] In the present embodiment, the control member drives the control rod 35 to rotate, which in turn drives the rotating rod 33 to drill a hole, thereby realizing convenient control of the spraying direction of the cleaning nozzle 34.

[0060] It can be understood that the rotating of the rotating rod 33 driven by the control rod 35 can be realized in various ways. The present embodiment gives the following solution:

[0061] As shown in Figure 4 and Figure 5 , the control member comprises two first horizontal rods 36 arranged parallel to each other and above the bottom wall of the mounting slot 32, and a control structure for controlling the two first horizontal rods 36 to move away from or close to each other along the length direction of the rods. Each end of the first horizontal rod 36 is rotatably connected to the end of the control rod 35 arranged at intervals.

[0062] In the present embodiment, the end of the control rod 35 is connected and arranged at intervals by the first horizontal rod 36. When the control structure drives the two first horizontal rods 36 to move in the direction of moving away from or close to each other, it can simultaneously drive the two rotating rods 33 apart to drive the cleaning nozzle 34 to rotate, thereby conveniently and quickly adjusting the spraying direction of the cleaning nozzle 34, and ensuring that the spraying directions of the adjacent cleaning nozzles 34 are symmetric about the median plane of the central line of the adjacent cleaning nozzles.

[0063] For how to ensure the relative fixation of the spraying direction of the cleaning nozzle 34, the present embodiment gives the following solution:

[0064] As shown in Figure 5 and Figure 6 , the control member further comprises a limiting structure, and the limiting structure comprises a resilient structure arranged on the end of the two first horizontal rods 36 away from each other. Both resilient structures are arranged along the length direction of the corresponding first horizontal rod 36, and the other end is connected to the slot wall of the mounting slot 32. When the resilient structure is in a normal elongation state, the included angle between the spraying direction of the cleaning nozzle 34 and the axial direction of the mounting column 29 is 15°.

[0065] The elastic structure limits the position of the two first horizontal rods 36, and in the normal elongation state, the included angle between the spray direction of the four cleaning nozzles 34 and the axis of the mounting column 29 is 15 degrees, so that the spray directions of the two cleaning nozzles 34 located on one side of the central position of the end of the mounting column 29 are in a spread state, and at this time, the top of the two cleaning nozzles 34 located on the outside is inclined to the direction of the axis of the mounting column 29, so that when the control unit controls the first horizontal rod 36 to move downward, the top of the two cleaning nozzles 34 located on the outside is brought close to each other, and the included angle between the spray direction of the two cleaning nozzles 34 and the axis of the mounting column 29 is increased.

[0066] It can be understood that the position limiting effect of the first horizontal rod 36 can be achieved by various elastic structures. The embodiment gives the following solutions:

[0067] The elastic structure includes two telescopic rods 38 arranged transversely in the mounting groove 32, and a positioning spring 39 sleeved on the rod body of the telescopic rod 38, one end of each of the two telescopic rods 38 is rotatably connected to one end of the two first horizontal rods 36, and the other end is rotatably connected to the groove wall of the mounting groove 32.

[0068] As shown in Figure 5 and Figure 6 The control structure includes a universal ball 37 rotatably embedded in the top center position of each first horizontal rod 36, and a control unit arranged in the mounting groove 32, the control unit is used to adjust the distance between the universal ball 37 and the bottom wall of the mounting groove 32; the control unit includes an extrusion block 43 arranged above the universal ball 37 at the bottom end of the universal ball 37, a second horizontal rod 40 arranged on the inner wall of the mounting groove 32 and parallel to the extrusion block 43 above, a second limiting rod 41 movably penetrating the second horizontal rod 40 along the axis of the mounting column 29 and connected to the extrusion block 43 at the bottom end, a limiting spring 42 movably sleeved on the rod body of the second limiting rod 41 and connected to the second horizontal rod 40 and the extrusion block 43 at both ends, and a pushing block 44 arranged on one side of the extrusion block 43, the opposite surfaces of the pushing block 44 and the extrusion block 43 are matching inclined surfaces, and when the pushing block 44 moves towards the extrusion block 43, the bottom wall of the extrusion block 32 moves.

[0069] When the spray direction of the cleaning nozzle 34 is adjusted, the control screw 45 is rotated through the threaded connection and is arranged on the side of the mounting column 29. One end of the control screw 45 is rotatably connected to the pushing block 44 arranged in the mounting groove 32, and drives the pushing block 44 to move close to or away from the extrusion block 43. The opposite surfaces of the pushing block 44 and the extrusion block 43 are both inclined surfaces, which can prevent the pushing block 44 from rotating with the control screw 45, and can control the extrusion block 43 to move downward or upward under the extrusion of the inclined surface when the pushing block 44 moves. The bottom end of the extrusion block 43 is attached to the universal ball 37, which can drive the universal ball 37 to move downward. When the extrusion block 43 moves upward, the universal ball 37 is not blocked by the extrusion block 43, and can move upward under the action of the normal elastic length of the elastic structure, thereby controlling the first horizontal rod 36 to move downward or upward, and facilitating the adjustment of the spray direction of the cleaning nozzle 34.

[0070] To adjust the distance between the universal ball 37 and the bottom wall of the mounting groove 32, the embodiment provides the following solutions:

[0071] As shown in Figure 7 and Figure 8 , the control unit includes a rotating ring 27 rotatably arranged at the bottom of the fixed column 5, a positioning rod 30 arranged above the universal ball 37 and attached to the universal ball 37 at the bottom, and a positioning column 31 fixedly arranged at the top end of the positioning rod 30 and fixedly connected to the inner wall of the rotating ring 27. The bottom end of the rotating ring 27 is threadedly connected to the side of the mounting column 29. The outer ring surface of the rotating ring 27 is fixedly provided with a linkage gear 28. When the universal ball 37 is rotated, the rotating ring 27 and the mounting column 29 are directly rotated, the long Su of the rotating ring 27 is controlled to be sleeved on the mounting column 29, the bottom end of the positioning rod 30 is controlled to extrude the universal ball 37, and the distance between the universal ball 37 and the bottom wall of the mounting groove 32 is controlled.

[0072] To rotate the support assembly control screw body 6, the embodiment provides the following solutions:

[0073] As shown in Figure 10 , the support assembly includes two support blocks 8 arranged in parallel in the cleaning machine body 1, a distance adjusting screw 11 arranged in the distance adjusting groove 9 on the top side of the support block 8 along the length direction, two distance adjusting blocks 10 threadedly connected to the two ends of the distance adjusting screw 11, two drive wheels 12 arranged above the distance adjusting blocks 10, a rotating structure for controlling the two drive wheels 12 on one of the support blocks 8 to rotate in opposite directions, and a length adjusting structure for controlling the distance between the two support blocks 8. The distance adjusting screw 11 is provided with threads, and the threads on the two ends of the rod body are in opposite directions.

[0074] The rotating structure comprises a driven gear 13 fixedly arranged on the end face of one of the two driving wheels 12, a driving gear 14 arranged below the two driven gears 13 and engaged with the two driven gears 13, and a first limiting rod 15 having one end rotatably connected to the end of the driving gear 14 and the other end rotatably connected to the end of the different driven gear 13, wherein the driving gear 14 is controlled to rotate by a driving motor 16.

[0075] The length adjusting structure comprises a sliding rod 17 arranged along the length direction of the screw body 6, an adjusting rod 18 arranged on the side of the support block 8 away from the screw body 6 and fixedly connected with the sliding rod 17, a bidirectional screw rod arranged in the moving slot opened in the length direction of the adjusting rod 18 close to the support block 8, two threaded blocks threadedly connected to the rod bodies on both ends of the bidirectional screw rod, and two linkage rods 19 rotatably connected in the middle and respectively rotatably connected at one end to the different threaded blocks, wherein the other ends of the two linkage rods 19 away from the threaded blocks are slidably arranged on the side surface of the support block 8 close to the adjusting rod 18, and the sliding rod 17 movably penetrates the other support block 8.

[0076] In this embodiment, the motor drives the pitch adjusting screw rod 11 to rotate, the two pitch adjusting blocks 10 are controlled to move away from or close to each other to control the movement between the two driving wheels 12, so that the end of the screw body 6 can be placed between the two driving wheels 12, and the driving motor 16 drives the driving gear 14 to rotate, thereby driving the two driving wheels 12 to rotate in the same direction and synchronously, and driving the screw body 6 to rotate. When supporting screw bodies 6 of different lengths, the motor drives the bidirectional screw rod to rotate, which cooperates with the two threaded blocks to drive the two linkage rods 19 to rotate, thereby driving the support block 8 to move on the sliding rod 17, so as to adjust the distance between the two support blocks 8, thereby facilitating the support of screw bodies 6 of different lengths and controlling the rotation of the screw body 6 around the axis.

[0077] As shown in Figures 1-3 , the cleaning mechanism further comprises a pitch adjusting assembly for controlling the installation column 29 to move close to or away from the screw body 6, and a collection assembly arranged below the screw body 6 for recovering the cleaning liquid after cleaning the screw body 6.

[0078] As shown in Figure 2 and Figure 3 , the pitch adjusting assembly comprises two vertical rods 20 arranged vertically on the cleaning machine body 1, two lifting screw rods 21 arranged in parallel on one side of the vertical rod 20, and a lifting block 22 slidably sleeved on the vertical rod 20 and threadedly connected with the lifting screw rod 21, wherein the two lifting blocks 22 are connected with the moving assembly.

[0079] The embodiment is driven by the motor to rotate the lifting screw 21, which can synchronously drive the two lifting blocks 22 to move the moving assembly in the vertical direction, so as to adjust the distance between the cleaning nozzle 34 on the mounting column 29 and the screw body 6.

[0080] As shown in Figure 2 and Figure 3 , the moving assembly includes a slide rail 3 transversely arranged on the cleaning machine body 1 and having two ends connected to different lifting blocks 22, a sliding block 24 sleeved on the slide rail 3, a fixed rack 23 arranged on the two lifting blocks 22 in parallel with the slide rail 3, and a moving gear 25 driven by the motor and penetrating through the sliding block 24 and engaged with the fixed rack 23, and the sliding block 24 is connected to the fixed column 5 through the connecting block 4.

[0081] When the mounting column 29 is controlled to move along the length direction of the screw body, the moving gear 25 is driven by the motor to rotate, which can stably drive the sliding block 24 to slide on the slide rail 3 under the engagement of the moving gear 25 and the fixed rack 23, so as to control the mounting column 29 to move in the length direction of the screw body 6.

[0082] As shown in Figure 10 , the collecting assembly includes a recovery groove 7 arranged on the cleaning machine body 1 and located below the screw body 6, a recovery rod arranged at the bottom of the recovery groove 7 and driven by the motor, and recovery leaves arranged in a spiral on the recovery rod, one end of the bottom of the recovery groove 7 is connected to a waste liquid recovery pipe 2 penetrating through the cleaning machine body 1 to the outside, and the cleaning liquid is recovered through the recovery groove 7 when cleaning the screw body 6.

[0083] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An injection molding machine cleaning device comprising a cleaning machine body (1) and a cleaning mechanism arranged on the cleaning machine body (1) to clean an injection molding machine screw body (6), characterized in that, The cleaning mechanism comprises a support assembly positioned at both ends of the screw body (6), a mounting column (29) provided on one side of the screw body (6) through a moving assembly, a rotating assembly provided on the moving assembly and used for controlling the mounting column (29) to rotate around the axial direction, and a cleaning assembly provided on the mounting column (29) and used for spraying cleaning liquid on the surface of the screw body (6) through two groups of spray heads, the two groups of spray heads are provided on the end of the mounting column (29) close to one end of the screw body (6), and the two groups of spray heads are symmetric about the center of the end of the mounting column (29), and the spraying directions of the two groups of spray heads are symmetric about the axis of the mounting column (29); Each group of spray heads comprises two cleaning spray heads (34) which are rotatably arranged on the end of the mounting column (29) through rotating rods (33), and the cleaning spray heads (34) are connected with the cleaning assembly, and the spraying directions of the two cleaning spray heads (34) in each group are symmetric about the median plane of the connecting line of the centers of the two cleaning spray heads (34); The cleaning assembly comprises liquid delivery pipes connected with the four cleaning spray heads (34), four control rods (35) arranged in the mounting groove (32) at the end of the mounting column (29) away from the rotating rod (33), and a control member arranged in the mounting groove (32), one end of the four control rods (35) is vertically arranged on the side surface of the different rotating rod (33) in a one-to-one correspondence, and is arranged along the spraying direction of the cleaning spray head (34) arranged on the corresponding rotating rod (33); and the control member is connected with the one end of the four control rods (35) away from the rotating rod (33). The control member comprises two first horizontal rods (36) which are parallel to each other and arranged above the bottom wall of the mounting groove (32), and a control structure which controls the two first horizontal rods (36) to move away from or close to each other along the length direction of the rods, and the two ends of each first horizontal rod (36) are rotatably connected with the end portions of the control rods (35) which are arranged at intervals.

2. The injection molding machine cleaning apparatus of claim 1, wherein: The rotating assembly comprises a fixed column (5) arranged on the moving assembly and rotatably sleeved on the mounting column (29), and a rotating member arranged on the moving assembly and used for controlling the mounting column (29) to rotate around the axial direction.

3. The injection molding machine cleaning apparatus of claim 2, wherein: The rotating member comprises a linkage gear (28) sleeved on the side surface of the mounting column (29), and a motor arranged on the moving assembly and provided with a rotating gear (26) at the output end, and the rotating gear (26) is engaged with the linkage gear (28).

4. The injection molding machine cleaning apparatus of claim 1, wherein: The control member further comprises a limiting structure, the limiting structure comprises elastic structures arranged at the ends of the two first horizontal rods (36) away from each other, the two elastic structures are arranged along the length direction of the corresponding first horizontal rod (36), and the other ends of the two elastic structures are connected with the groove wall of the mounting groove (32); when the elastic structure is in a normal elongation state, the included angle between the spraying direction of the cleaning spray head (34) and the axial direction of the mounting column (29) is 15°.

5. The injection molding machine cleaning apparatus of claim 4, wherein: The control structure comprises a universal ball (37) rotatably embedded in the center position of the top of each first horizontal rod (36), and a control unit arranged in the mounting groove (32), and the control unit is used for adjusting the distance between the universal ball (37) and the bottom wall of the mounting groove (32).

6. The injection molding machine cleaning apparatus of claim 5, wherein: The control unit comprises a bottom end adhering universal ball (37), an extrusion block (43) arranged above the universal ball (37), a second horizontal rod (40) arranged on the inner wall of the mounting groove (32) and parallel to the upper side of the extrusion block (43), a second limiting rod (41) which is axially movable along the mounting column (29), penetrates the second horizontal rod (40) and is connected to the bottom end of the extrusion block (43), a limiting spring (42) which is movably arranged on the second limiting rod (41) and is connected to the two ends of the second horizontal rod (40) and the extrusion block (43), and a pushing block (44) arranged on one side of the extrusion block (43), the opposite surfaces of the pushing block (44) and the extrusion block (43) are matching inclined surfaces, and the extrusion block (43) is moved along the bottom wall of the mounting groove (32) when the pushing block (44) moves towards the extrusion block (43).

7. The injection molding machine cleaning apparatus of claim 1, wherein: The cleaning mechanism further comprises a distance adjusting assembly for controlling the mounting column (29) to move close to or away from the screw body (6), and a collecting assembly arranged below the screw body (6) for recycling the cleaning liquid after cleaning the screw body (6).

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