Conveying mechanism capable of stably conveying and printing equipment

Abstract

The utility model discloses a stable-conveying conveying mechanism and printing equipment. The stable-conveying conveying mechanism comprises a support. The conveying assembly is installed on the support and used for bearing the to-be-conveyed materials and conveying the to-be-conveyed materials to a target position; the pressing roller assembly is installed on the support and used for being matched with the conveying assembly to press the to-be-conveyed materials; the conveying assembly comprises a plurality of conveying belts and a first lifting assembly used for lifting the conveying belts. The first lifting assembly is used for lifting the conveying belt. The pressing roller assembly is matched with the rising conveying belt to press materials to be conveyed. According to the scheme, the problem that materials are prone to deviation in the conveying process and the printing process at present can be relieved, and the conveying and printing processes can be more stable.

Description

Technical Field

[0001] The utility model relates to a printing device, in particular to a stable transmission mechanism and a printing device. Background Art

[0002] In the field of large-format printing and sheet metal processing equipment, the stability of the material transfer system directly affects the precision and quality of the finished product. With the increasing demand for high-precision printing and precision processing in industrial manufacturing, especially in applications such as large-format paper (such as poster-grade printing media) and engineering sheet materials (such as PCB substrates and decorative panels), deviations during the transfer process can lead to serious quality issues such as misaligned print patterns and deviations in cutting contours.

[0003] Although a calibration step is currently implemented before the transfer process, where the printed material is calibrated and then transferred to the printhead via a transfer component for printing, the lack of proper positioning of the printed material still makes it susceptible to material shifting during transfer and printing. This problem arises from uneven contact between the printed material and the transfer component. Therefore, addressing this issue in a targeted manner could alleviate the current issue of material shifting during transfer and printing. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a conveying mechanism and printing equipment with stable transmission, which can alleviate the problem of material deviation during the current transmission and printing processes, and make the transmission and printing processes more stable.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a transmission mechanism for stable transmission, comprising

[0006] Bracket;

[0007] A conveying assembly is mounted on the bracket and is used to carry the material to be conveyed and convey the material to a target location;

[0008] The pressure roller assembly is installed on the bracket and is used to cooperate with the conveying assembly to press the material to be conveyed;

[0009] The conveying assembly includes several conveyor belts and a lifting assembly for lifting the conveyor belts; the lifting assembly is used to lift the conveyor belts; and the pressure roller assembly cooperates with the raised conveyor belts to press the materials to be transported.

[0010] As a further improvement of the present invention, the pressure roller assembly includes a pressure roller and a lifting assembly 2 for cooperating with the pressure roller to rise and fall, and the lifting assembly 2 is installed on a bracket; when the conveyor belt is raised in conjunction with the lifting assembly 1, the pressure roller is lowered in conjunction with the lifting assembly 2, and cooperates with the conveyor belt to press the material to be conveyed.

[0011] As a further improvement of the present invention, the conveying assembly also includes a connecting frame, several conveyor belts are installed on the connecting frame, and a lifting assembly is connected to the connecting frame, and the conveyor belts are synchronously raised or lowered by lifting the connecting frame; the pressure roller cooperates with several conveyor belts to press the material to be transported at the same time.

[0012] As a further improvement of the present invention, the second lifting component includes two connecting parts and two actuators; the two connecting parts are respectively located at the two ends of the pressure roller, and are used to connect the ends of the pressure roller so that they can slide up and down; the two actuators are respectively arranged corresponding to one of the connecting parts, and are used to cooperate with the pressure roller to slide up and down on the connecting parts.

[0013] As a further improvement of the present invention, the actuator drives the pressure roller to move upward and supports the pressure roller, and releases the support function to allow the pressure roller to move downward under the action of gravity.

[0014] As a further improvement of the present invention, the actuator is a pneumatic push rod or a hydraulic push rod.

[0015] As a further improvement of the present invention, a buffer is provided between the actuator and the end of the pressure roller. One end of the buffer abuts the actuator and the other end abuts the pressure roller, for providing buffering for the pressure roller after it moves downward under the action of gravity.

[0016] As a further improvement of the present invention, the conveying assembly also includes a driving member and several conveying rollers, and the several conveying rollers are linked with the driving member and driven to rotate by the driving member; a baffle is provided on the bracket, and the baffle is used for the edge of the material to be sent to abut; the conveying roller is used to convey the material to be sent and forms a displacement in the first direction and the second direction of the material to be sent until the material to be sent abuts the baffle, the first direction is the displacement direction of the material to be sent toward the baffle, and the second direction is the direction in which the material to be sent needs to be conveyed; after the material to be sent abuts the baffle, the conveyor belt cooperates with the lifting assembly to lift and raise the material to be sent, and after the conveyor belt is raised, it exceeds the horizontal height of the conveying roller; the material to be sent is a hard material.

[0017] As a further improvement of the present invention, the end of the conveying roller away from the baffle is inclined toward the direction in which the material to be conveyed is required to be conveyed, and an acute angle is formed between the axis of the conveying roller and the baffle to form a displacement of the material to be conveyed in the first direction and the second direction.

[0018] A printing device comprises a printing component and a conveying mechanism for stable transmission as described in any one of the above-mentioned improved solutions, wherein the conveyor belt conveys the material to be sent to the printing component for printing.

[0019] The beneficial effect of the present invention is that through the lifting and lowering coordination mechanism, the material is stably constrained in the vertical direction, and the transmission coordination is more uniform during the transmission process, reducing the problem of transmission deviation caused by uneven contact. In addition, the pressing action can provide resistance to deviation limitation, which can limit the problem of material deviation and avoid horizontal deviation caused by uneven gap between the conveyor belt and the pressure roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic top view of the overall structure of the utility model;

[0022] Figure 3 It is a side view schematic diagram of the overall structure of the utility model;

[0023] Figure 4 for Figure 1 A magnified schematic diagram of part A in FIG;

[0024] Figure 5 for Figure 2 A magnified schematic diagram of part B in FIG.

[0025] Figure 6 This is a schematic diagram of the structure of part of the transmission component of the utility model;

[0026] Figure 7 It is a schematic diagram of the linkage relationship between multiple conveying rollers of the present utility model.

[0027] Figure numbers: 1. Bracket; 11. Baffle; 2. Conveying assembly; 21. Conveyor belt; 22. Lifting assembly 1; 23. Connecting frame; 24. Driving member; 25. Conveying roller; 3. Pressure roller assembly; 31. Pressure roller; 32. Lifting assembly 2; 33. Connecting member; 34. Actuator; 35. Buffer member. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0029] Reference Figure 1-7 As shown,

[0030] A stable transmission mechanism comprising

[0031] Bracket 1;

[0032] The conveying assembly 2 is mounted on the bracket 1 and is used to carry the material to be conveyed and convey the material to the target location;

[0033] The pressure roller assembly 3 is installed on the bracket 1 and is used to cooperate with the conveying assembly 2 to press the material to be conveyed;

[0034] The conveying assembly 2 includes a plurality of conveyor belts 21 and a lifting assembly 22 for lifting the conveyor belts 21; the lifting assembly 22 is used to lift the conveyor belts 21; and the pressure roller assembly 3 cooperates with the raised conveyor belts 21 to press the material to be conveyed.

[0035] Reference Figure 1 、 2 As shown in Figures 6 and 7, the conveyor belt 21 is driven by the lifting component 22 to achieve vertical lifting. Before the material is conveyed to the target position, the lifting component 22 lifts the conveyor belt 21 to a position higher than the initial position. At this time, the pressure roller assembly 3 is pressed down synchronously to form a clamping area with the conveyor belt 21 to evenly press the surface of the material. Through the lifting and lowering coordination mechanism, the material is stably constrained in the vertical direction, and the transmission coordination is more uniform during the transmission process, reducing the problem of transmission deviation caused by uneven contact. In addition, the pressure action can also provide resistance to deviation limitation, which can limit the problem of material deviation and avoid horizontal deviation caused by uneven gap between the conveyor belt 21 and the pressure roller 31. It is especially suitable for the precise positioning of hard materials, such as plates, acrylic, glass, etc. that need to be printed.

[0036] For specific settings, refer to Figure 1 、 2 As shown in Figures 3 and 4, the pressure roller assembly 3 includes a pressure roller 31 and a lifting assembly 2 32 for cooperating with the pressure roller 31 to rise and fall. The lifting assembly 2 32 is installed on the bracket 1; when the conveyor belt 21 rises in cooperation with the lifting assembly 1 22, the pressure roller 31 falls in cooperation with the lifting assembly 2 32 to cooperate with the conveyor belt 21 to press the material to be delivered.

[0037] Lifting assembly 2 32 and lifting assembly 1 22 can be linked via a control system or timed. When conveyor belt 21 rises, lifting assembly 2 32 drives pressing roller 31 to descend synchronously. Of course, this synchronization is not required. For example, conveyor belt 21 can be raised to a certain height before pressing roller 31 descends to compress the material. This bidirectional compression action results in faster compression and higher overall efficiency.

[0038] In order to facilitate the synchronous operation of multiple conveyor belts 21, refer to Figure 6 As shown, in an optional embodiment, the conveying component 2 also includes a connecting frame 23, several conveyor belts 21 are installed on the connecting frame 23, and the lifting component 22 is connected to the connecting frame 23, and the conveyor belts 21 are synchronously raised or lowered by lifting the connecting frame 23; the pressure roller 31 cooperates with several conveyor belts 21 to press the material to be transported at the same time.

[0039] The connecting frame 23 is driven by the lifting assembly 1 22, causing all conveyor belts 21 to rise and fall synchronously. The pressure roller 31 spans across multiple conveyor belts 21, forming a continuous pressure surface with all conveyor belts 21 during the lifting process. This structure, through the rigid connecting frame 23, ensures high consistency among the multiple conveyor belts 21, avoiding the uneven pressure and high control precision required by single-point lifting. Furthermore, the simultaneous pressure exerted by the pressure roller 31 on multiple conveyor belts 21 further disperses local stress, preventing deformation of hard materials (such as decorative panels) due to excessive pressure at a single point.

[0040] As an optional embodiment, the lifting component 2 32 includes two connecting members 33 and two actuators 34; the two connecting members 33 are respectively located at both ends of the pressure roller 31, and are used to connect the ends of the pressure roller 31 so that they can slide up and down; the two actuators 34 are respectively arranged corresponding to one of the connecting members 33, and are used to cooperate with the pressure roller 31 to slide up and down on the connecting members 33.

[0041] The ends of the pressure roller 31 form a sliding pair with the bracket 1 through a connector 33. An actuator 34 (such as an electric push rod, hydraulic push rod, or pneumatic push rod) drives the pressure roller 31 to move vertically along the connector 33. The two actuators 34 synchronously control the lifting and lowering strokes of the pressure roller 31. In a specific configuration, as shown in the reference figure, the pressure roller 31 can have sliders at both ends, which are slidably connected to the connector 33. The sliders are integrated with bearings. The ends of the pressure roller 31 are fixedly connected to the inner ring of the bearing, and the outer ring of the bearing is embedded in the sliders and fixedly connected to the sliders. In this case, the sliders form a bearing seat and are connected to the connector 33 for up and down movement. This up and down movement connection can use a keyway to allow the connector 33 and the slider to slide up and down, but with lateral restraints to prevent disengagement during sliding. The actuator 34 can be mounted on the bracket 1.

[0042] In the specific configuration, to further enhance adaptive performance and simplify clamping control, actuator 34 normally supports pressure roller 31 in a high position. When material compaction is required, actuator 34 releases its supporting force (for example, if actuator 34 is a hydraulic or pneumatic push rod, the hydraulic or pneumatic control is released. Gravity then forces pressure roller 31 downward, allowing the push rod to retract). Pressure roller 31 then freely falls to the material surface under the action of gravity. This gravity-driven compaction eliminates the need for a complex force control system, simplifies the structure, and reduces costs. Furthermore, the freely falling pressure roller 31 adapts to changes in material thickness, preventing damage from overpressure.

[0043] Preferably, the actuator 34 is a pneumatic or hydraulic push rod. When the pneumatic or hydraulic push rod releases the air or hydraulic pressure, it slowly releases the pressure to create damping, allowing the pressure roller 31 to press down slowly, preventing it from hitting the material surface and causing damage. This absorbs the impact of contact between the pressure roller 31 and the material, reducing noise and wear caused by rigid impact.

[0044] As an alternative to providing further buffering, refer to Figure 4 、 5 As shown, a buffer member 35 is provided between the actuator 34 and the end of the pressure roller 31 , one end of the buffer member 35 abuts against the actuator 34 , and the other end abuts against the pressure roller 31 , for providing buffering for the pressure roller 31 after it moves downward under the action of gravity.

[0045] A buffer 35 (such as a spring) is installed between the pneumatic push rod and the pressure roller 31. The spring can be coaxial with the push rod. The push rod serves as a guide to prevent uncontrolled deformation and damage to the spring during downward pressure. When the pressure roller 31 falls freely, the buffer 35 absorbs the impact energy through elastic deformation and converts the remaining kinetic energy into slowly released elastic potential energy. This design ensures clamping force while preventing surface microcracks caused by instantaneous impact on hard materials (such as sheet materials, acrylic, and glass), achieving a balanced balance between positioning accuracy and material protection.

[0046] In order to achieve low-cost calibration of materials to be sent and transmission, the following optional specific solution is provided:

[0047] Reference Figure 1 、 2 As shown in Figures 7 and 8, the conveying assembly 2 also includes a driving member 24 and a plurality of conveying rollers 25, which are linked to the driving member 24 and driven to rotate by the driving member 24; a baffle 11 is provided on the bracket 1, and the baffle 11 is used for the edge of the material to be sent to abut; the conveying rollers 25 are used to convey the material to be sent and form a first direction and a second direction displacement of the material to be sent until the material to be sent abuts the baffle 11, the first direction is the displacement direction of the material to be sent toward the baffle 11, and the second direction is the direction in which the material to be sent needs to be sent; after the material to be sent abuts the baffle 11, the conveyor belt 21 cooperates with the lifting assembly 22 to lift and raise the material to be sent, and after the conveyor belt 21 is raised, it exceeds the horizontal height of the conveying rollers 25; the material to be sent is a hard material.

[0048] The conveying roller 25 is driven to rotate by the driving member 24, and the surface friction of the conveying roller 25 pushes the material to move toward the baffle 11 (first direction) and move forward along the conveying direction (second direction) (refer to Figure 2(The arrows in the figure indicate the direction of travel, with leftward in the first direction and upward in the second direction.) When the edge of the material to be conveyed finally abuts baffle 11, displacement in the first direction ceases, leaving only the second direction of travel, thus achieving automatic alignment of the material in both the horizontal and vertical directions. After the material abuts baffle 11, completing lateral positioning, the conveyor belt 21 rises above the conveyor roller 25, freeing the material from contact with the conveyor roller 25 and allowing it to be held and conveyed solely by the conveyor belt 21 and pressure roller 31. This staged control strategy, combining mechanical limiters (baffle 11) with a source of friction (conveyor roller 25), eliminates interference from subsequent rotation of the conveyor roller 25 on the already positioned material, ensuring the stable position of hard materials during finishing or printing. It also features a simple structure, low cost, and easy installation and maintenance.

[0049] This automatic calibration method does not require human intervention and realizes the coordinated displacement of materials in two directions. The materials to be transported can be placed on the conveying roller 25 with the help of other lifting devices or manual means. It has low requirements for the placement position. This solution can form an efficient and simple structural calibration solution for materials to be transported, which is particularly suitable for large-sized materials to be transported.

[0050] The driving member 24 may be a motor, and the first direction and the second direction are combined to form a movement direction gradually approaching the baffle 11 and gradually approaching the desired conveying direction of the material to be conveyed. The desired conveying direction of the material to be conveyed may be the direction of the printing device.

[0051] In this embodiment, the material to be conveyed can be made of a hard material, such as sheet material, acrylic, or glass, which can form a more stable fit with the baffle 11. The calibration mechanism is optimized for the rigidity of the hard material, improving positioning accuracy. Of course, flexible materials can also be used to form a fit with the baffle 11, such as wide-format rigid paper (which is still a flexible material in nature).

[0052] In the specific setting, the end of the conveying roller 25 away from the baffle 11 is inclined toward the direction in which the material to be conveyed is required to be conveyed, and an acute angle is formed between the axis of the conveying roller 25 and the baffle 11 to form a displacement of the material to be conveyed in the first direction and the second direction.

[0053] In this embodiment, the axis of the conveyor roller 25 forms an acute angle (e.g., 30° to 90°, excluding the 90° endpoint) with the baffle 11. This allows the surface of the conveyor roller 25 to generate a force component when in contact with the material: a force component in the second direction propels the material forward, while a force component in the first direction propels the material toward the baffle 11. This tilted design directly achieves bidirectional displacement through mechanical structure, without the need for additional sensors or control programs. Sensors (e.g., infrared sensors or pressure sensors, with the pressure sensor positioned on the baffle 11 to contact the material, and the infrared sensor positioned near the baffle 11 to detect whether the material is approaching the baffle 11) can also be used to detect whether the material being conveyed has completed calibration, but these are not required. The calibration of the material being conveyed by the conveyor roller 25 can also be determined by a fixed conveying time. For example, after 15 seconds of conveying by the conveyor roller 25, it can be determined that the edge of the material being conveyed has reached the baffle 11. This time is merely an example, and those skilled in the art can set it to 10 seconds or 20 seconds based on actual conditions.

[0054] The angle formed between the axis of the conveying roller 25 and the baffle 11 can be adjusted according to the actual conveying stroke. For example, if the stroke is short, the angle can be smaller; if the stroke is long, the angle can be larger. When the angle is large, the thrust toward the baffle 11 is relatively small, which will not cause excessive pressure on the baffle 11. At this time, it also reduces the friction loss between the baffle 11 and the material to be conveyed, and avoids positioning deviation caused by violent collisions. However, the stroke required for calibrating the material to be conveyed will also be longer. When the angle is small, the stroke for calibrating the material to be conveyed is short, but it is also easy to cause greater pressure on the baffle 11, and it is also easy to generate greater friction and loss between the two. Therefore, those skilled in the art can choose according to the required angle.

[0055] In order to facilitate the synchronous action of multiple conveying rollers 25, in an optional embodiment, referring to Figure 1 、 2 As shown in FIG. 7 , a plurality of conveying rollers 25 are distributed along the second direction, and adjacent conveying rollers 25 in the direction are driven by transmission members, and at least one of the conveying rollers 25 is driven in cooperation with the driving member 24 through the transmission member.

[0056] Concrete transmission member can adopt belt or chain.Correspondingly, gear can be provided on the transmission roller 25, be used for cooperating belt or chain.

[0057] The conveying rollers 25 distributed along the second direction form a column. Several columns are provided in the first direction, and at least one conveying roller 25 in each column is conveyed through a transmission member and a driving member 24. The output end of the driving member 24 is connected to a rotating shaft. Each conveying roller 25 conveyed through the transmission member and the driving member 24 is driven by the transmission member and the rotating shaft to form a connection with the driving member 24.

[0058] The rotating shaft can be equipped with multiple gears to coordinate with the transmission elements connecting each row of conveyor rollers 25 to the driver 24. The driver 24 drives the rotating shaft, synchronously driving each transmission element on the shaft, which in turn rotates each row of conveyor rollers 25. The rotating shaft and driver 24 can be connected via a coupling, or they can be driven by a gear train, chain, or belt. A single driver 24 distributes power across multiple rows through the rotating shaft, simplifying the transmission system and reducing costs.

[0059] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A stable transmission mechanism, characterized in that: include Bracket; A conveying assembly is mounted on the bracket and is used to carry the material to be conveyed and convey the material to a target location; The pressure roller assembly is installed on the bracket and is used to cooperate with the conveying assembly to press the material to be conveyed; The conveying assembly includes several conveyor belts and a lifting assembly for lifting the conveyor belts; the lifting assembly is used to lift the conveyor belts; and the pressure roller assembly cooperates with the raised conveyor belts to press the materials to be transported.

2. The stable transmission mechanism according to claim 1, characterized in that: The pressure roller assembly includes a pressure roller and a lifting assembly 2 for cooperating with the pressure roller to rise and fall, and the lifting assembly 2 is installed on a bracket; when the conveyor belt is raised in conjunction with the lifting assembly 1, the pressure roller is lowered in conjunction with the lifting assembly 2 to cooperate with the conveyor belt to press the material to be delivered.

3. The stable transmission mechanism according to claim 2, characterized in that: The conveying assembly also includes a connecting frame, a plurality of conveyor belts are installed on the connecting frame, and a lifting assembly is connected to the connecting frame, and the conveyor belts are synchronously raised or lowered by lifting the connecting frame; the pressure roller cooperates with the plurality of conveyor belts to press the material to be conveyed at the same time.

4. The stable transmission mechanism according to claim 2 or 3, characterized in that: The second lifting component includes two connecting parts and two actuators; the two connecting parts are respectively located at the two ends of the pressure roller, and are used to connect the ends of the pressure roller so that they can slide up and down; the two actuators are respectively set corresponding to one of the connecting parts, and are used to cooperate with the pressure roller to slide up and down on the connecting parts.

5. The stable transmission mechanism according to claim 4, characterized in that: The actuator drives the pressing roller to move upward and supports the pressing roller, and releases the supporting function to allow the pressing roller to move downward under the action of gravity.

6. The stable transmission mechanism according to claim 5, characterized in that: The actuator is a pneumatic push rod or a hydraulic push rod.

7. The stable transmission mechanism according to claim 5, characterized in that: A buffer is provided between the actuator and the end of the pressure roller. One end of the buffer abuts the actuator, and the other end abuts the pressure roller, for providing buffering for the pressure roller after it moves downward under the action of gravity.

8. The stable transmission mechanism according to claim 1, 2 or 3, characterized in that: The conveying assembly also includes a driving member and a plurality of conveying rollers, and the plurality of conveying rollers are linked with the driving member and driven to rotate by the driving member; a baffle is provided on the bracket, and the baffle is used for abutting the edge of the material to be sent; the conveying roller is used to convey the material to be sent and forms a displacement in a first direction and a second direction for the material to be sent until the material to be sent abuts the baffle, the first direction is the displacement direction of the material to be sent toward the baffle, and the second direction is the direction in which the material to be sent needs to be sent; after the material to be sent abuts the baffle, the conveyor belt cooperates with the lifting assembly to lift and raise the material to be sent, and the conveyor belt exceeds the horizontal height of the conveying roller after being raised; the material to be sent is a hard material.

9. The stable transmission mechanism according to claim 8, characterized in that: One end of the conveying roller away from the baffle is inclined toward the direction in which the material to be conveyed is required to be conveyed, and an acute angle is formed between the axis of the conveying roller and the baffle to form a displacement of the material to be conveyed in a first direction and a second direction.

10. A printing device, characterized in that: It comprises a printing component and a conveying mechanism for stable transmission as described in any one of claims 1 to 9, wherein the conveyor belt conveys the material to be sent to the printing component for printing.

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