Pad printing apparatus

Abstract

The utility model discloses a pad printing equipment has mutually orthogonal first direction, second direction and third direction, pad printing equipment includes: the acceptance conveyer, pad printing conveying line is equipped with two, two pad printing conveying lines are arranged respectively in the both sides of acceptance conveyer, pad printing conveying line includes: pad printing conveyer, pad printing machine, positioning mechanism sets up in pad printing position, it is used for to the product and is in the center positioning, and make the product temporarily stay in pad printing position, pad printing equipment still includes: the shunt mechanism, and the shunt mechanism sets up in the top of the end of acceptance conveyer, the shunt mechanism includes: the shunt guide piece, sets up in the top of acceptance conveyer, the shunt drive part is used for driving the reciprocal swing of shunt guide piece to make a plurality of products shunt to two pad printing conveyer conveying. This scheme can effectively avoid the trouble of the beat adjustment of upstream equipment when adding pad printing equipment or replacing original pad printing equipment, thereby can reduce production line control difficulty, reduce system failure risk.

Description

Technical Field

[0001] This utility model relates to the field of pad printing equipment technology, and in particular to a pad printing device. Background Technology

[0002] Pad printing is a common pattern transfer method widely used in surface printing processes for electronic products, daily necessities, toys, packaging, and other fields. In existing production processes, a pad printing machine is usually fixedly installed above the pad printing conveyor line. The pad printing head of the machine transfers the ink pattern from the etched plate to the product surface.

[0003] In existing technical solutions, pad printing machines are usually fixed structures, and the pad printing head can only move back and forth between a fixed pad printing position and an etching plate. When pad printing is required on a product, the product must be kept at the pad printing position to ensure the accuracy and quality of the printed pattern.

[0004] To ensure accurate product placement, a centering and positioning mechanism is typically installed at the pad printing position. However, in continuous production lines, the products transported by upstream equipment are continuous, and using a centering and positioning mechanism to stop the product requires complex cycle time matching and synchronization control with both upstream and downstream equipment.

[0005] In addition, the spacing between products transported by upstream equipment may be small, which may cause subsequent products to collide with the centering mechanism or accumulate upstream of the centering mechanism when the product is stopped by the centering positioning mechanism.

[0006] Especially when adding pad printing equipment to an existing production line or replacing the original pad printing equipment, if the conveying cycle time of the upstream equipment is a fixed value, adjusting the cycle time will be very complicated or even impossible, which increases the difficulty of production line control and the risk of system failure. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a pad printing device to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0008] The solution to the technical problem of this utility model is:

[0009] A pad printing apparatus having mutually orthogonal first, second, and third directions; the pad printing apparatus includes:

[0010] A receiving conveyor, used to connect with upstream equipment to receive and transport products in a primary direction;

[0011] Two pad printing conveyor lines are provided, with each conveyor line positioned on one side of the receiving conveyor. Each pad printing conveyor line includes:

[0012] A pad printing conveyor for conveying products along a first direction, with its starting end and the end of the receiving conveyor arranged along a second direction;

[0013] A pad printing machine is provided, having at least one fixed pad printing position, which is disposed above the pad printing conveyor for pad printing patterns onto the product at the pad printing position.

[0014] A positioning mechanism is provided at the pad printing position, which is used to center and position the product and temporarily stop the product at the pad printing position;

[0015] The pad printing equipment further includes: a diversion mechanism, which is disposed above the end of the receiving conveyor; the diversion mechanism includes:

[0016] Diverting guide components are disposed above the receiving conveyor;

[0017] A diversion drive is used to drive the diversion guide to reciprocate so that multiple products are diverted and conveyed to the two pad printing conveyors.

[0018] As a further improvement to the above technical solution, the positioning mechanism includes two sets of positioning components, which are symmetrically arranged on both sides of the pad printing conveyor; the positioning components include:

[0019] A positioning drive component is fixedly disposed on the side of the pad printing conveyor;

[0020] A positioning structure is fixed to the output end of the positioning drive, and the positioning drive drives the positioning structure to move along a second direction;

[0021] The positioning structures of the two sets of positioning components move closer to or further away from each other to achieve product centering.

[0022] As a further improvement to the above technical solution, the positioning structure includes:

[0023] A positioning connector is fixed to the output end of the positioning drive component;

[0024] A positioning element is installed on the positioning connecting frame. Two positioning elements are provided and arranged along a first direction.

[0025] As a further improvement to the above technical solution, the positioning element is provided with a positioning surface, which is a cylindrical surface.

[0026] As a further improvement to the above technical solution, the positioning element is adjustablely mounted on the positioning connecting frame, and the positioning element can be adjusted in position relative to the positioning connecting frame along a first direction.

[0027] As a further improvement to the above technical solution, the positioning drive component is a linear cylinder.

[0028] As a further improvement to the above technical solution, both the receiving conveyor and the pad printing conveyor are chain plate conveyors.

[0029] As a further improvement to the above technical solution, the pad printing conveyor line also includes a height adjustment mechanism, which includes:

[0030] A height adjusting screw extends along a third direction, and its rotation axis is parallel to the third direction; the end of the height adjusting screw is provided with a drive connection joint, which is used to connect with an external drive structure to drive the height adjusting screw to rotate.

[0031] A height adjustment bracket is threadedly connected to the height adjustment screw. When the height adjustment screw rotates, the height adjustment bracket moves relative to the height adjustment screw in a third direction.

[0032] The pad printing machine is mounted on the height adjustment frame and moves along the third direction with the height adjustment frame.

[0033] As a further improvement to the above technical solution, the diversion guide is provided with two guide surfaces, which are arranged opposite to each other, and the included angle between the two guide surfaces is an acute angle.

[0034] As a further improvement to the above technical solution, the two guide surfaces are connected by a transition surface, which is an arc-shaped surface.

[0035] The beneficial effects of this invention are as follows: When the diversion drive drives the diversion guide to swing, it will push the products on the receiving conveyor to one side in the second direction, thereby allowing the products to enter one of the pad printing conveyors. By driving the diversion drive to swing the diversion guide back and forth, the products on the receiving conveyor can be alternately output to the two pad printing conveyors, thus achieving continuous diversion operation. After the products are diverted, there is sufficient distance between two adjacent products on each pad printing conveyor, which can effectively avoid collisions and accumulation of subsequent products in the centering mechanism when the centering positioning mechanism stops the products.

[0036] This solution, by setting up a diversion mechanism, can effectively avoid the hassle of adjusting the cycle time of upstream equipment when adding new pad printing equipment or replacing existing pad printing equipment, thereby reducing the difficulty of production line control and reducing the risk of system failure.

[0037] This invention relates to the field of pad printing equipment technology. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0040] Figure 2 yes Figure 1 A magnified view of part A in the middle;

[0041] Figure 3 yes Figure 1 A magnified view of part B in the middle section;

[0042] Figure 4 This is a partial structural diagram of the height adjustment mechanism according to an embodiment of the present invention.

[0043] In the diagram, 100 is the receiving conveyor; 200 is the pad printing conveyor line; 210 is the pad printing conveyor; 220 is the pad printing machine; 221 is the pad printing mounting frame; 222 is the first silicone head drive; 223 is the pad printing moving frame; 224 is the second silicone head drive; 225 is the pad printing silicone head; 226 is the etching plate; 227 is the ink cartridge; 230 is the positioning mechanism; 231 is the positioning drive; 232 is the positioning connecting frame; 233 is the positioning component; 234 is the position adjustment groove; 240 is the height adjustment mechanism; 241 is the height adjustment screw; 242 is the height adjustment frame; 243 is the height guide; 300 is the diversion mechanism; 310 is the diversion guide; 311 is the guide surface; 312 is the transition surface; and 320 is the diversion drive. Detailed Implementation

[0044] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages mentioned herein do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this invention can be combined interactively without contradicting each other.

[0045] Reference Figures 1 to 4A pad printing device has a first direction, a second direction, and a third direction, which are orthogonally arranged to each other. As shown in the figure, the first direction is parallel to the X-axis, the second direction is parallel to the Y-axis, and the third direction is parallel to the Z-axis.

[0046] The pad printing equipment includes: a receiving conveyor 100, a pad printing conveyor line 200, and a diversion mechanism 300.

[0047] The receiving conveyor 100 is a conventional chain conveyor (simplified representation in the figure), and its conveying direction is parallel to the first direction. The receiving conveyor 100 is used to connect with the conveyor of upstream equipment to receive products from the upstream equipment and continue conveying the products along the first direction. In other embodiments, the receiving conveyor 100 may also be a conventional conveyor structure such as a belt conveyor.

[0048] The number of pad printing conveyor lines 200 is set to two, the two pad printing conveyor lines 200 are arranged along the second direction, and the two pad printing conveyor lines 200 are symmetrically arranged on both sides of the receiving conveyor 100.

[0049] Specifically, the pad printing conveyor line 200 includes: a pad printing conveyor 210, a pad printing machine 220, a positioning mechanism 230, and a height adjustment mechanism 240.

[0050] The pad printing conveyor 210 is configured as a conventional chain conveyor, with the pad printing conveyors 210 of the two pad printing conveyor lines 200 symmetrically arranged on both sides of the receiving conveyor 100. The pad printing conveyor 210 and the receiving conveyor 100 are arranged along a second direction, with the beginning of the pad printing conveyor 210 connecting to the end of the receiving conveyor 100, thereby allowing products at the receiving conveyor 100 to move to the pad printing conveyor 210. In other embodiments, the pad printing conveyor 210 may also be configured as a conventional conveyor structure such as a belt conveyor.

[0051] The height adjustment mechanism 240 includes: a height adjustment screw 241, a height adjustment bracket 242, and a height guide 243.

[0052] The height adjusting screw 241 extends in a third direction and is rotatably connected to the frame of the pad printing conveyor 210. The height guide 243 is parallel to the height adjusting screw 241 and is fixedly connected to the frame of the pad printing conveyor 210. A drive connection joint is provided at the upper end of the height adjusting screw 241, which is used to connect to an external handwheel, allowing the operator to rotate the height adjusting screw 241.

[0053] The height guide 243 is a smooth rod structure, and the number of height guides 243 is set to four. The four height guides 243 are arranged in a rectangle, and the height adjustment screw 241 is set at the center of the rectangle of the four height guides 243.

[0054] The height adjustment bracket 242 is threadedly connected to the height adjustment screw 241. When the height adjustment screw 241 rotates, the height adjustment bracket 242 will move in a third direction. The height guide 243 passes through the height adjustment bracket 242 and is slidably connected to the height adjustment bracket 242. The height guide 243 can guide the height adjustment bracket 242 to prevent the height adjustment bracket 242 from rotating with the height adjustment screw 241.

[0055] The pad printing machine 220 is fixedly mounted on the height adjustment frame 242, so that the pad printing machine 220 is connected to the frame of the pad printing conveyor line 200 through the height adjustment mechanism 240. The pad printing machine 220 is positioned above the pad printing conveyor line 200, and the height of the pad printing machine 220 can be adjusted by operating the height adjustment mechanism 240. The pad printing machine 220 has a fixed pad printing position.

[0056] Specifically, the pad printing machine 220 includes: a pad printing mounting frame 221, a first silicone head drive component 222, a pad printing moving frame 223, a second silicone head drive component 224, a pad printing silicone head 225, an etching plate 226, and an ink cartridge 227.

[0057] The pad printing mounting bracket 221 is fixedly connected to the height adjustment bracket 242 of the height adjustment mechanism 240.

[0058] The etching plate 226 is fixedly installed on the pad printing mounting frame 221. The etching plate 226 has an etching pattern, which is a groove structure.

[0059] The first silicone head drive component 222 is fixedly mounted on the pad printing mounting bracket 221. In this embodiment, the first silicone head drive component 222 is configured as a lead screw linear module. The driving direction of the first silicone head drive component 222 is parallel to the first direction. In other embodiments, the first silicone head drive component 222 can also be configured as other linear drive structures, such as a synchronous belt linear module, a linear cylinder, etc. Those skilled in the art can select the specific structure of the first silicone head drive component 222 according to the actual situation.

[0060] The pad printing moving frame 223 is fixedly installed at the output end of the first silicone head driver 222, and the first silicone head driver 222 drives the pad printing moving frame 223 to move along the first direction.

[0061] The ink cartridge 227 is fixedly installed on the pad printing moving frame 223. The ink cartridge 227 is positioned above the etching plate 226, and the lower end face of the ink cartridge 227 abuts against the etching plate 226 to prevent ink leakage from the ink cartridge 227.

[0062] The second silicone head drive component 224 is fixedly installed on the pad printing moving frame 223. Specifically, in this embodiment, the second silicone head drive component 224 is configured as a linear cylinder, and the driving direction of the second silicone head drive component 224 is parallel to a third direction. In other embodiments, the second silicone head drive component 224 can also be configured as a linear module. Those skilled in the art can select the specific structure of the second silicone head drive component 224 according to actual needs.

[0063] The pad printing silicone head 225 is fixedly connected to the output end of the second silicone head driver 224. The second silicone head driver 224 drives the pad printing silicone head 225 to move in a third direction, so that the pad printing silicone head 225 moves closer to or further away from the product, thereby realizing the pattern pad printing operation.

[0064] The first silicone head driver 222 drives the pad printing frame 223 to move along the first direction. The ink cartridge 227 and the silicone head move along the first direction with the pad printing frame 223. When the ink cartridge 227 moves to the etched pattern on the etching plate 226 and the pad printing silicone head 225 moves above the pad printing position, the ink in the ink cartridge 227 falls into the etched pattern. The second silicone head driver 224 drives the pad printing silicone head 225 to approach the product, so that the pattern on the pad printing silicone head 225 is transferred to the product. Subsequently, the second silicone head driver 224 drives the pad printing silicone head 225 to move closer to the product. 5. Move away from the product, so that the second silicone head is reset to a height higher than the etching plate 226. Then, the first silicone head driver 222 drives the pad printing moving frame 223 to reset, so that the ink cartridge 227 is away from the etched pattern, exposing the etched pattern, and the pad printing silicone head 225 is moved above the etched pattern. The second silicone head driver 224 drives the pad printing silicone head 225 to approach the etching plate 226, so that the pad printing silicone head 225 absorbs ink. The second silicone head driver 224 drives the pad printing silicone head 225 away from the etching plate 226, and then repeats the above pad printing process.

[0065] The positioning mechanism 230 is disposed at the pad printing position. The positioning mechanism 230 is used to center and position the product and temporarily stop the product at the pad printing position. Specifically, in this embodiment, the positioning mechanism 230 includes two sets of positioning components, which are arranged along the second direction and symmetrically disposed on both sides of the pad printing conveyor 210.

[0066] The positioning components include: positioning drive 231 and positioning structure.

[0067] The positioning drive 231 is configured as a linear cylinder. In other embodiments, the positioning drive 231 may also be configured as other conventional linear drive devices. Those skilled in the art can select the specific structure of the positioning drive 231 according to actual needs.

[0068] The positioning structure is fixedly installed at the output end of the positioning drive component 231. Specifically, the positioning structure includes: a positioning connecting frame 232 and a positioning component 233. The number of positioning components 233 in each positioning structure is set to two, and the two positioning components 233 are arranged along the first direction. The two positioning components 233 are symmetrically arranged at both ends of the positioning connecting frame 232 in the first direction.

[0069] The positioning connecting frame 232 has multiple position adjustment slots 234, which are symmetrically arranged at the two ends of the positioning connecting frame 232 in the first direction. The number of position adjustment slots 234 at each end of the positioning connecting frame 232 is set to three, and the three position adjustment slots 234 are arranged at equal intervals.

[0070] The positioning component 233 is detachably connected to the positioning structure by screws (not shown in the figure). The installation position of the positioning component 233 corresponds to one of the position adjustment slots 234. After the screw passes through the position adjustment slot 234, it is tightened onto the positioning component 233, so that the position of the positioning component 233 can be adjusted relative to the positioning connecting bracket 232 in a first direction. The lower end of the positioning component 233 is provided with a positioning surface, which is set as a cylindrical surface, so that the positioning component 233 can position products of various shapes.

[0071] The diversion mechanism 300 is disposed above the end of the receiving conveyor 100. The diversion mechanism 300 is used to divert the products on the receiving conveyor to the two pad printing conveyors 210. Specifically, the diversion mechanism 300 includes: a diversion guide 310 and a diversion drive 320.

[0072] The diversion drive 320 is fixedly installed above the receiving conveyor 100. Specifically, the diversion drive 320 is fixedly connected to the frame of the pad printing conveyor 210 through a frame. Specifically, in this embodiment, the diversion drive 320 is set as a swing motor, and the output end of the diversion drive 320 rotates around an axis parallel to a third direction.

[0073] The diversion guide 310 is disposed above the receiving conveyor 100, and is fixedly connected to the output end of the diversion drive 320. Specifically, in this embodiment, the diversion guide 310 is provided with two guide surfaces 311, which are arranged opposite to each other, and the included angle between the two guide surfaces 311 is set to an acute angle. The two guide surfaces 311 are respectively used to guide the product to the two pad printing conveyors 210.

[0074] Specifically, in this embodiment, the two guide surfaces 311 are connected by a transition surface 312, and the transition surface 312 is set as an arc surface. By setting the arc-shaped transition surface 312 to connect the two guide surfaces 311, the connection point of the two guide surfaces 311 can be avoided from being too sharp and causing product damage.

[0075] When the diversion drive 320 drives the diversion guide 310 to swing, it will push the products on the receiving conveyor 100 to one side in the second direction, so that the products enter one of the pad printing conveyors 210. By driving the diversion drive 320 to swing the diversion guide 310 back and forth, the products on the receiving conveyor 100 can be alternately output to the two pad printing conveyors 210, thereby realizing continuous diversion operation.

[0076] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A pad printing device, characterized in that: It has a first direction, a second direction, and a third direction that are mutually orthogonal; The pad printing equipment includes: A receiving conveyor, used to connect with upstream equipment to receive and transport products in a primary direction; Two pad printing conveyor lines are provided, with each conveyor line positioned on one side of the receiving conveyor. Each pad printing conveyor line includes: A pad printing conveyor for conveying products along a first direction, with its starting end and the end of the receiving conveyor arranged along a second direction; A pad printing machine is provided, having at least one fixed pad printing position, which is disposed above the pad printing conveyor for pad printing patterns onto the product at the pad printing position. A positioning mechanism is provided at the pad printing position, which is used to center and position the product and temporarily stop the product at the pad printing position; The pad printing equipment further includes: a diversion mechanism, which is disposed above the end of the receiving conveyor; the diversion mechanism includes: Diverting guide components are disposed above the receiving conveyor; A diversion drive is used to drive the diversion guide to reciprocate so that multiple products are diverted and conveyed to the two pad printing conveyors.

2. The pad printing device according to claim 1, characterized in that: The positioning mechanism includes two sets of positioning components, which are symmetrically arranged on both sides of the pad printing conveyor; each positioning component includes: A positioning drive component is fixedly disposed on the side of the pad printing conveyor; A positioning structure is fixed to the output end of the positioning drive, and the positioning drive drives the positioning structure to move along a second direction; The positioning structures of the two sets of positioning components move closer to or further away from each other to achieve product centering.

3. The pad printing device according to claim 2, characterized in that: The positioning structure includes: A positioning connector is fixed to the output end of the positioning drive component; A positioning element is installed on the positioning connecting frame. Two positioning elements are provided and arranged along a first direction.

4. The pad printing device according to claim 3, characterized in that: The positioning element has a positioning surface, which is a cylindrical surface.

5. The pad printing device according to claim 3, characterized in that: The positioning element is adjustablely mounted on the positioning connecting frame, and the positioning element can be adjusted in position relative to the positioning connecting frame along a first direction.

6. The pad printing device according to claim 2, characterized in that: The positioning drive component is a linear cylinder.

7. The pad printing device according to claim 1, characterized in that: Both the receiving conveyor and the pad printing conveyor are chain conveyors.

8. The pad printing device according to claim 1, characterized in that: The pad printing conveyor line also includes a height adjustment mechanism, which comprises: A height adjusting screw extends along a third direction, and its rotation axis is parallel to the third direction; the end of the height adjusting screw is provided with a drive connection joint, which is used to connect with an external drive structure to drive the height adjusting screw to rotate. A height adjustment bracket is threadedly connected to the height adjustment screw. When the height adjustment screw rotates, the height adjustment bracket moves relative to the height adjustment screw in a third direction. The pad printing machine is mounted on the height adjustment frame and moves along the third direction with the height adjustment frame.

9. A pad printing device according to claim 1, characterized in that: The diversion guide has two guide surfaces, which are arranged opposite to each other, and the included angle between the two guide surfaces is an acute angle.

10. A pad printing device according to claim 9, characterized in that: The two guide surfaces are connected by a transition surface, which is an arc-shaped surface.

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