Plate clamping mechanism of vacuum printing equipment

Abstract

The utility model belongs to the technical field of material conveying, and particularly relates to a plate clamping mechanism of vacuum printing equipment, which comprises a guide rail extending left and right, a transfer module assembled on the guide rail in a sliding manner, and a driving module for driving the transfer module to move left and right, the transfer module comprises two clamping units which are arranged at an interval in the front-back direction; the driving module comprises a synchronous wheel assembly and a synchronous belt which is wound outside the synchronous wheel assembly and moves circularly, the synchronous belt comprises a U-shaped inner layer part and a U-shaped outer layer part which are opened in the same direction in the left-right direction, and the U-shaped inner layer part comprises two synchronous belt inner sections which are arranged in a front-back spaced mode; the U-shaped outer layer part comprises two synchronous belt outer sections which are arranged front and back at an interval, and the synchronous belt inner sections and the synchronous belt outer sections are parallel to each other; wherein one clamping unit is connected with the inner section of the synchronous belt on one side, and the other clamping unit is connected with the outer section of the synchronous belt on one side.

Description

Technical Field

[0001] This utility model belongs to the technical field of material conveying, specifically relating to the plate clamping mechanism of vacuum printing equipment. Background Technology

[0002] When using vacuum printing equipment, the printing plate (printed board) needs to be conveyed from the inlet of the vacuum printing equipment to the processing table. The printing mechanism prints on the printing plate on the processing table. During the conveying process, a plate clamping mechanism is required to clamp and convey the plate. Existing plate clamping mechanisms typically include two clamping units arranged at intervals. The two clamping units jointly clamp both sides of the plate, and the plate is conveyed by moving the clamping units.

[0003] In the existing technology, each of the two clamping units is equipped with a separate drive device. In order to ensure that the two sides of the plate move synchronously, it is necessary to control the two drive devices to work synchronously, which requires a long time for debugging. Moreover, after long-term use, the synchronization of the two drive devices will deviate, affecting the accuracy of conveying and even causing tearing damage to the plate. Utility Model Content

[0004] This invention provides a plate clamping mechanism for a vacuum printing equipment to solve the technical problem of poor synchronization caused by the separate driving of two clamping units in the prior art.

[0005] To solve the above problems, the plate clamping mechanism of the vacuum printing equipment provided by this utility model adopts the following technical solution: the plate clamping mechanism of the vacuum printing equipment includes a guide rail extending to the left and right, a transfer module slidably assembled on the guide rail, and a drive module that drives the transfer module to move left and right.

[0006] The transfer module includes two clamping units arranged at intervals along the front-to-back direction, which are used to clamp the plate together;

[0007] The drive module includes a synchronous pulley assembly and a synchronous belt that is wound around the outside of the synchronous pulley assembly and moves in a cycle. The synchronous belt includes a U-shaped inner layer and a U-shaped outer layer that open in the same direction in the left and right directions. The U-shaped outer layer is located outside the U-shaped inner layer. The U-shaped inner layer includes two synchronous belt inner sections arranged at intervals from front to back, and the U-shaped outer layer includes two synchronous belt outer sections arranged at intervals from front to back. The synchronous belt inner sections and the synchronous belt outer sections are parallel to each other.

[0008] One of the clamping units is connected to the inner section of the synchronous belt on one side, and the other clamping unit is connected to the outer section of the synchronous belt on the same side.

[0009] The beneficial effect is that the synchronous inner belt section and the synchronous outer belt section are different parts of the same synchronous belt, the moving speed of the synchronous inner belt section and the synchronous outer belt section is consistent during the circulation movement of the synchronous belt, and the moving direction of the synchronous inner belt section and the synchronous outer belt section is also consistent, the synchronous inner belt section and the synchronous outer belt section are connected with the two clamping units respectively, and the synchronous movement of the two clamping units is ensured.

[0010] As a further improvement, the synchronous wheel assembly comprises a first synchronous wheel, a second synchronous wheel and a third synchronous wheel arranged in sequence along the left-right direction, and the first synchronous wheel, the second synchronous wheel and the third synchronous wheel are symmetrically arranged along the front-rear direction.

[0011] The two first synchronous wheels are located at the intersection position of the U-shaped inner layer portion and the U-shaped outer layer portion, the two second synchronous wheels are located at the reversing position inside the U-shaped inner layer portion, and the two third synchronous wheels are located at the reversing position inside the U-shaped outer layer portion.

[0012] As a further improvement, the synchronous wheel assembly further comprises a fourth synchronous wheel and a driving wheel, the fourth synchronous wheel is located outside the U-shaped outer layer portion, and in the left-right direction, the fourth synchronous wheel is located between the third synchronous wheel and the driving wheel.

[0013] The driving wheel is located inside the U-shaped outer layer portion, and the driving wheel is used for driving the synchronous belt to circulate, and in the front-rear direction, the driving wheel is located between the two fourth synchronous wheels.

[0014] As a further improvement, the first synchronous wheel is adjustably assembled on the rack in the front-rear direction. The first synchronous wheel is adjustable, and the tension of the synchronous belt can be adjusted.

[0015] As a further improvement, the plate clamping mechanism of the vacuum printing device comprises a rack and a mounting plate, at least two fixed bolts are arranged in sequence along the left-right direction on the rack, and a waist-shaped hole extending leftward and rightward is arranged on the mounting plate; in the left-right direction, the first synchronous wheel is rotatably mounted at one end of the mounting plate, and an adjusting bolt is threadedly assembled at the other end of the mounting plate, the adjusting bolt penetrates into the waist-shaped hole and abuts against the fixed bolt, and the mounting plate moves leftward and rightward by rotating the adjusting bolt.

[0016] As a further improvement, the transfer module has at least two modules arranged in sequence along the left-right direction, and any two adjacent transfer modules are fixedly connected together to move synchronously. By arranging multiple transfer modules and connecting the transfer modules together, the transfer modules move synchronously, and multiple plates can be clamped and conveyed at the same time.

[0017] As a further improvement, the clamping unit comprises a displacement assembly and a clamping assembly, the clamping assembly is arranged on the output end of the displacement assembly, the displacement assembly is used to drive the clamping assembly to move forward and backward and up and down, and the clamping assembly is used to clamp the plate.

[0018] As a further improvement, the clamping assembly comprises a bottom plate, a fixed pressing block, a movable pressing block and a clamping telescopic piece, one end of the bottom plate is fixedly arranged on the displacement assembly, the fixed pressing block is arranged at the other end of the bottom plate, the movable pressing block is hingedly arranged on the bottom plate, one end of the clamping telescopic piece is hingedly arranged on the bottom plate through a first hinged block, and the other end of the clamping telescopic piece is hingedly arranged with the movable pressing block through a second hinged block, and the clamping telescopic piece is used to drive the movable pressing block to swing up and down when the clamping telescopic piece is telescoped. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description read in conjunction with the accompanying drawings. In the drawings, several embodiments of the present application are illustrated by way of example and not limitation in which like reference numerals refer to like elements throughout. Therein:

[0020] Figure 1 It is a perspective view of the plate clamping mechanism of the vacuum printing device;

[0021] Figure 2 It is a schematic view of the first guide rail, the plate transfer module and the driving module assembled together in the plate clamping mechanism of the vacuum printing device;

[0022] Figure 3 It is a schematic view of the first guide rail, the first sliding seat and the driving module assembled together in the plate clamping mechanism of the vacuum printing device;

[0023] Figure 4 It is a schematic view of the clamping unit in the plate clamping mechanism of the vacuum printing device;

[0024] Figure 5 It is a side view of the clamping unit in the plate clamping mechanism of the vacuum printing device;

[0025] Figure 6 It is an enlarged view of the first synchronous wheel in the plate clamping mechanism of the vacuum printing device;

[0026] Figure 7 It is a schematic view of the clamping assembly in the plate clamping mechanism of the vacuum printing device.

[0027] BRIEF DESCRIPTION OF DRAWINGS

[0028] 100, rack; 101, mounting plate; 102, fixed bolt; 103, adjusting bolt; 104, waist-shaped hole;

[0029] 200, first guide rail;

[0030] 300. First transfer module; 301. Clamping unit; 302. Clamping assembly; 303. First sliding seat; 304. Second sliding seat; 305. First driving component; 306. Third sliding seat; 307. Second driving component; 308. First slider; 309. Connecting rod; 310. Second guide rail; 311. Horizontal plate; 312. Vertical plate; 313. Second slider; 314. Third guide rail; 315. Third slider; 316. Base plate; 317. Fixed pressure block; 318. Movable pressure block; 319. Clamping cylinder; 320. First hinge block; 321. Second hinge block;

[0031] 400. Second transfer module;

[0032] 500. Drive module; 501. Synchronous belt; 502. First synchronous pulley; 503. Second synchronous pulley; 504. Third synchronous pulley; 505. Fourth synchronous pulley; 506. Drive wheel; 507. Drive motor; 508. First connecting plate; 509. Second connecting plate; 510. Inner section of synchronous belt; 511. Outer section of synchronous belt;

[0033] 600. Sheet metal. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0035] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0036] An embodiment of the plate clamping mechanism for the vacuum printing equipment provided by this utility model:

[0037] like Figures 1 to 7 As shown, the plate clamping mechanism of the vacuum printing equipment (hereinafter referred to as the plate clamping mechanism) includes a frame 100, a first guide rail 200, a transfer module and a drive module 500.

[0038] The first guide rail 200 is fixedly installed on the frame 100. For ease of description, the extension direction of the first guide rail 200 is defined as the left and right direction. The first guide rail 200 includes two rails arranged in front and behind.

[0039] The transfer modules are slidingly assembled on the first guide rails 200. Here, the transfer modules are two, which are a first transfer module 300 and a second transfer module 400 that are the same in structure. The first transfer module 300 is taken as an example for description.

[0040] The first transfer module 300 comprises two clamping units 301 arranged in front and back. The two clamping units 301 correspond to two tracks of the first guide rails 200 one by one. The two clamping units 301 are used to jointly clamp the plate 600. The clamping unit 301 comprises a displacement assembly and a clamping assembly 302. The clamping assembly 302 is installed on the output end of the displacement assembly. The displacement assembly is used to drive the clamping assembly 302 to move up and down, front and back, and to move left and right in cooperation with the clamping unit 301, so that the clamping assembly 302 can realize movement in three directions of front and back, left and right, and up and down.

[0041] The displacement assembly comprises a first sliding seat 303, a second sliding seat 304, a first driving member 305, a third sliding seat 306, and a second driving member 307. The first sliding seat 303 is slidingly assembled on the first guide rails 200 in the left and right directions. The second sliding seat 304 is slidingly assembled on the first sliding seat 303 in the front and back directions. The first driving member 305 drives the second sliding seat 304 to move front and back. The third sliding seat 306 is slidingly assembled on the second sliding seat 304 in the up and down directions. The second driving member 307 drives the third sliding seat 306 to move up and down. The third sliding seat 306 is the output end of the displacement assembly. The clamping assembly 302 is fixedly installed on the third sliding seat 306.

[0042] Specifically, the bottom of the first sliding seat 303 is fixed with a first sliding block 308 that can slide on the first guide rails 200. The first sliding seats 303 in the clamping units 301 located on the same side in the front and back directions in the first transfer module 300 and the second transfer module 400 are connected through a connecting rod 309. The top of the first sliding seat 303 is installed with a second guide rail 310 extending in front and back.

[0043] The second sliding seat 304 is an L-shaped sliding seat comprising a horizontal plate 311 and a vertical plate 312. The bottom of the horizontal plate 311 is installed with a second sliding block 313 matched with the second guide rail 310. The first driving member 305 is installed on the first sliding seat 303, which can be a screw nut mechanism or a cylinder, etc. The output end of the first driving member 305 is connected with the horizontal plate 311 to drive the second sliding seat 304 to move front and back. The vertical plate 312 of the second sliding seat 304 is installed with a third guide rail 314 extending up and down.

[0044] The third sliding seat 306 is provided with a third sliding block 315 matched with the third guide rail 314. The second driving member 307 is installed on the second sliding seat 304, and can be a screw nut mechanism or a cylinder, etc. The output end of the second driving member 307 is connected with the third sliding seat 306, and is used to drive the third sliding seat 306 to move up and down.

[0045] The clamping assembly 302 is provided in plurality, and the plurality of clamping assemblies 302 are arranged in the left-right direction. Specifically, the clamping assembly 302 is cantilevered on the third sliding seat 306 in the front-rear direction. The clamping assembly 302 comprises a bottom plate 316, a fixed pressing block 317, a movable pressing block 318, and a clamping cylinder 319. The bottom plate 316 extends in the front-rear direction, and one end of the bottom plate 316 is fixedly installed on the third sliding seat 306. The bottom plate 316 is fixedly provided with a first hinge block 320.

[0046] The fixed pressing block 317 is located at the end of the bottom plate 316 away from the third sliding seat 306, that is, at the end close to the middle position in the front-rear direction. The movable pressing block 318 is in T shape as a whole, and one corner of the movable pressing block 318 is hinged to the bottom plate 316 about an axis extending in the left-right direction. When the movable pressing block 318 swings downward, it can be clamped with the fixed pressing block.

[0047] One end of the clamping cylinder 319 is hinged to the first hinge block 320 about an axis extending in the left-right direction. The other end of the clamping cylinder 319 is fixedly provided with a second hinge block 321. One corner of the movable pressing block 318 is hinged to the second hinge block 321 about an axis extending in the left-right direction. The clamping cylinder 319 is driven to extend and retract, so as to drive the movable pressing block 318 to swing up and down. In this embodiment, the clamping cylinder 319 is a clamping extension member. In other embodiments, the clamping extension member can be an electric cylinder or an oil cylinder.

[0048] The driving module 500 comprises a synchronous belt 501, a first synchronous wheel 502, a second synchronous wheel 503, a third synchronous wheel 504, a fourth synchronous wheel 505, a driving wheel 506, a driving motor 507, a first connecting plate 508, and a second connecting plate 509. The first synchronous wheel 502, the second synchronous wheel 503, the third synchronous wheel 504, and the fourth synchronous wheel 505 are provided in two in the front-rear direction.

[0049] Specifically, two mounting plates 101 are installed on the rack 100. The first synchronous wheel 502 is rotatably installed on the mounting plate 101. The second synchronous wheel 503, the third synchronous wheel 504, the fourth synchronous wheel 505, and the driving wheel 506 are rotatably installed on the rack 100. The driving motor 507 is also installed on the rack 100.

[0050] The first synchronous wheel 502, the second synchronous wheel 503, the third synchronous wheel 504, the fourth synchronous wheel 505, and the driving wheel 506 are arranged in sequence in the left-right direction, and in the left-right direction, the distance between the first synchronous wheel 502 and the second synchronous wheel 503 is larger, and the distance between the second synchronous wheel 503, the third synchronous wheel 504, and the fourth synchronous wheel 505 is smaller. In the front-rear direction, the first synchronous wheel 502 and the third synchronous wheel 504 are located at the same position, two second synchronous wheels 503 are located between the two first synchronous wheels 502, two fourth synchronous wheels 505 are located between the two second synchronous wheels 503, and the driving wheel 506 is located between the two fourth synchronous wheels 505.

[0051] The two first synchronous wheels 502, the two second synchronous wheels 503, the two third synchronous wheels 504, and the two fourth synchronous wheels 505 are symmetrically arranged about the central axis of the driving wheel 506.

[0052] The synchronous belt 501 is wound between the driving wheel 506, the first synchronous wheel 502, the second synchronous wheel 503, the third synchronous wheel 504, and the fourth synchronous wheel 505, and the synchronous belt 501 forms a U-shaped inner layer portion and a U-shaped outer layer portion, and the openings of the U-shaped inner layer portion and the U-shaped outer layer portion face the same direction. The first synchronous wheel 502 is located at the intersection position of the U-shaped inner layer portion and the U-shaped outer layer portion, the second synchronous wheel 503 is located at the reversing position inside the U-shaped inner layer portion, and the third synchronous wheel 504 is located at the reversing position inside the U-shaped outer layer portion. The fourth synchronous wheel 505 is located outside the U-shaped outer layer portion, and the synchronous belt 501 reverses at the fourth synchronous wheel 505, so that the synchronous belt 501 can reliably adhere to the driving wheel 506.

[0053] The U-shaped inner layer portion includes two mutually parallel synchronous belt inner segments 510, and the two synchronous belt inner segments 510 extend left and right and are arranged in front and back intervals. The U-shaped outer layer portion includes two mutually parallel synchronous belt outer segments 511, and the two synchronous belt outer segments 511 extend left and right and are arranged in front and back intervals.

[0054] In the front-rear direction, the conveying directions of the synchronous belt inner segment 510 on one side and the synchronous belt outer segment 511 on the other side are consistent, and the moving speeds of the synchronous belt inner segment 510 and the synchronous belt outer segment 511 are equal.

[0055] The first connecting plate 508 connects the synchronous belt inner segment 510 on one side and the first sliding seat in the clamping unit 301 on the same side, and the second connecting plate 509 connects the synchronous belt outer segment 511 on the other side and the first sliding seat in the clamping unit 301 on the same side, so that the clamping units 301 on the front and rear sides can realize synchronous and same-direction movement, and the synchronization is better.

[0056] The mounting plate 101 is adjustably mounted on the rack 100 in the front-rear direction, and specifically, two fixing bolts 102 are fixedly mounted on the rack 100 corresponding to each mounting plate 101, and the two fixing bolts 102 are spaced in the left-right direction. The mounting plate 101 is provided with a waist-shaped hole 104 extending in the left-right direction, and the fixing bolt 102 is located in the waist-shaped hole 104. One end of the mounting plate 101 in the left-right direction is provided with a first synchronous wheel 502, and the other end of the mounting plate 101 in the left-right direction is provided with an adjusting bolt 103, which penetrates into the waist-shaped hole 104, and the adjusting bolt 103 abuts against the fixing bolt 102. By rotating the adjusting bolt 103, the distance of the adjusting bolt 103 penetrating into the waist-shaped hole 104 can be changed, so as to adjust the position of the mounting plate 101 in the left-right direction and the tension of the synchronous belt 501.

[0057] In the embodiment, the clamping assembly 302 includes a fixed pressing block 317 and a movable pressing block 318, and the movable pressing block 318 clamps the plate 600 together with the fixed pressing block 317 by swinging downward. In other embodiments, the movable pressing block 318 can also be in a straight up-and-down manner.

[0058] In the embodiment, the transfer module has two, which are a first transfer module 300 and a second transfer module 400, and the two are connected through a connecting rod 309. In other embodiments, the number of transfer modules can be increased, such as three, four, etc., and any two connected transfer modules are connected together to realize synchronous movement, and the transfer module can also have only one.

[0059] In the embodiment, the position of the mounting plate 101 is changed by rotating the adjusting bolt 103. In other embodiments, an electric cylinder can be mounted on the rack 100 to drive the mounting plate 101 to move.

[0060] In the embodiment, the fourth synchronous wheel 505 is provided to control the reversing of the synchronous belt 501. In other embodiments, the fourth synchronous wheel 505 can be cancelled.

[0061] In addition, in the description of the present specification, the meaning of "a plurality of" is at least two, such as two, three or more, etc., unless otherwise specifically limited.

Claims

1. A plate clamping mechanism for vacuum printing equipment, characterized in that, It includes left and right extending guide rails, a transfer module slidably mounted on the guide rails, and a drive module that drives the transfer module to move left and right. The transfer module includes two clamping units arranged at intervals along the front-to-back direction, which are used to clamp the plate together; The drive module includes a synchronous pulley assembly and a synchronous belt that is wound around the outside of the synchronous pulley assembly and moves in a cycle. The synchronous belt includes a U-shaped inner layer and a U-shaped outer layer that open in the same direction in the left and right directions. The U-shaped outer layer is located outside the U-shaped inner layer. The U-shaped inner layer includes two synchronous belt inner sections arranged at intervals from front to back, and the U-shaped outer layer includes two synchronous belt outer sections arranged at intervals from front to back. The synchronous belt inner sections and the synchronous belt outer sections are parallel to each other. One of the clamping units is connected to the inner section of the synchronous belt on one side, and the other clamping unit is connected to the outer section of the synchronous belt on the same side.

2. The plate clamping mechanism of the vacuum printing equipment according to claim 1, characterized in that, The timing pulley assembly includes a first timing pulley, a second timing pulley, and a third timing pulley arranged sequentially in the left-right direction, and two of each of the first, second, and third timing pulleys are symmetrically arranged in the front-back direction. The two first synchronous pulleys are located at the intersection of the inner and outer parts of the U-shape; the two second synchronous pulleys are located at the reversing position inside the inner part of the U-shape; and the two third synchronous pulleys are located at the reversing position inside the outer part of the U-shape.

3. The plate clamping mechanism of the vacuum printing equipment according to claim 2, characterized in that, The synchronizing pulley assembly also includes a fourth synchronizing pulley and a drive pulley. The fourth synchronizing pulley is located on the outside of the U-shaped outer layer and is positioned between the third synchronizing pulley and the drive pulley in the left-right direction. The drive wheel is located inside the outer U-shaped portion and is used to drive the synchronous belt in a cyclical motion. In the front-to-back direction, the drive wheel is located between the two fourth synchronous wheels.

4. The plate clamping mechanism of the vacuum printing equipment according to claim 2, characterized in that, The first synchronous pulley is mounted on the frame in an adjustable position along the front-to-back direction.

5. The plate clamping mechanism of the vacuum printing equipment according to claim 4, characterized in that, The plate clamping mechanism of the vacuum printing equipment includes a frame and a mounting plate. The frame is provided with at least two fixing bolts arranged in sequence from left to right. The mounting plate is provided with an oblong hole that fits onto the fixing bolts and extends to the left and right. In the left and right direction, the first synchronous wheel is rotatably mounted on one end of the mounting plate, and the other end of the mounting plate is threaded with an adjusting bolt. The adjusting bolt passes through the oblong hole and abuts against the fixing bolt. The mounting plate is driven to move left and right by rotating the adjusting bolt.

6. The plate clamping mechanism of the vacuum printing equipment according to any one of claims 1-5, characterized in that, The transfer module has at least two arranged sequentially in the left-right direction, and any two adjacent transfer modules are fixed together to move synchronously.

7. The plate clamping mechanism of the vacuum printing equipment according to any one of claims 1-5, characterized in that, The clamping unit includes a displacement component and a clamping component. The clamping component is located on the output end of the displacement component. The displacement component is used to drive the clamping component to move back and forth and up and down. The clamping component is used to clamp the plate.

8. The plate clamping mechanism of the vacuum printing equipment according to claim 7, characterized in that, The clamping assembly includes a base plate, a fixed pressure block, a movable pressure block, and a clamping telescopic member. One end of the base plate is fixed to the displacement assembly, the fixed pressure block is located at the other end of the base plate, the movable pressure block is hinged to the base plate, one end of the clamping telescopic member is hinged to the base plate through a first hinge block, and the other end is hinged to the movable pressure block through a second hinge block. When the clamping telescopic member extends or retracts, it is used to drive the movable pressure block to swing up and down.

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