A side printing positioning jig

Abstract

The utility model relates to printing frock technical field, specifically disclose a side printing positioning jig. The jig includes base and compression rod assembly: the inside of base is equipped with several depth is less than the positioning groove of product height, and the air inlet of communicating vacuum adsorption device is opened in the groove bottom, realizes product bottom adsorption fixed, the compression rod assembly is installed in the both sides end of base, and its end portion can draw along the length direction of base, and is connected with base through spring. When operating, the spring is stretched to expand the positioning groove clamping space by drawing the compression rod, and the spring pre-tightening force drives the compression rod to reset and compresses the side of product after loosening, realizes the quick adaptation of different size / shape products. The present application has vacuum adsorption and mechanical self -adaptation compression function, and the positioning precision and efficiency of side printing are improved obviously.

Description

Technical Field

[0001] This utility model belongs to the field of printing machinery manufacturing technology, and specifically relates to a side printing positioning fixture. Background Technology

[0002] Currently, positioning accuracy, ease of operation, and printing yield are key factors in side printing processes. However, existing side printing fixtures struggle to meet these requirements simultaneously, resulting in low production yield and efficiency.

[0003] Existing printing fixtures are structurally unsuitable for various product size variations, making precise positioning during the printing process difficult. On the one hand, manual operation of the printing fixture clamping is cumbersome and time-consuming, which not only reduces production efficiency but also increases the labor intensity of operators. On the other hand, due to inaccurate positioning or improper operation, problems such as product displacement and blurred silkscreen patterns can easily occur during the printing process.

[0004] Based on the above-mentioned existing technology, this utility model proposes a side printing positioning fixture to at least partially solve the above problems. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides a side printing positioning fixture, which solves the problem that the existing printing fixtures are difficult to adapt to various product size variations due to their structural design, resulting in difficulties in accurate positioning during printing. This not only increases the tediousness and time consumption of manual clamping, reduces production efficiency and increases the labor intensity of operators, but also easily causes product displacement and blurred silkscreen patterns due to inaccurate positioning or improper operation.

[0006] The objective of this utility model can be achieved through the following technical solution: A side printing positioning fixture, comprising: a base, having a plurality of positioning grooves inside, the depth of which is less than the depth of the product to be printed; an air suction hole is provided on the base, the air suction hole being used to connect a vacuum adsorption device to adsorb and fix the product; a clamping rod assembly, installed at both ends of the base; one end of the clamping rod assembly can be pulled along the length of the base, and a spring is connected between the clamping rod assembly and the base; by pulling the clamping rod assembly, the spring is stretched to expand the clamping space of the corresponding positioning groove, and after being released, the preload of the spring drives the clamping rod to reset, which is used to adapt to products of different sizes and shapes.

[0007] As a preferred embodiment of this utility model, the clamping rod assembly includes several independent clamping rods, each clamping rod corresponding to a positioning groove and installed on one side of the base.

[0008] As a preferred embodiment of this utility model, the clamping rod passes through one end of the base and enters the positioning groove, and the spring is sleeved in the middle of the clamping rod; a horizontally placed push head is provided in the positioning groove, the push head is located in the positioning groove and does not exceed the groove opening plane, and is connected to the end of the clamping rod by a thread; one end of the spring abuts against the base and the other end abuts against the push head, which is used to provide the elastic force for the clamping rod to return to its original position.

[0009] As a preferred embodiment of this utility model, the air intake hole is located on the base side end away from the clamping rod, and the central axis of the air intake hole is on the same horizontal plane as the clamping end of the clamping rod.

[0010] As a preferred technical solution of this utility model, a pressure sensor is provided at the bottom of the positioning groove to monitor the contact pressure between the product and the bottom of the groove in real time.

[0011] As a preferred technical solution of this utility model, the base is made of zirconia ceramic or hard anodized aluminum alloy.

[0012] The beneficial effects of this utility model are as follows: The design of the positioning groove depth being less than the product height ensures complete exposure of the printed side. Combined with the vacuum adsorption fixation at the bottom of the groove and the spring-adaptive clamping mechanism of the clamping rod assembly, an orthogonal bidirectional fixing force is formed: the suction hole connects to the vacuum device to achieve bottom adsorption of the product; after pulling the clamping rod to expand the clamping space, the spring preload drives the pusher to reset and clamp the product side. A single operation can adapt to products of different sizes / shapes, significantly improving changeover efficiency. The independent clamping rod and pusher combination ensures multi-station reliability; the pusher does not extend beyond the groove opening to avoid interference with the printing path; the suction hole and clamping end are set on the same plane, concentrating the force on the product's center of gravity area. An optional pressure sensor monitors the contact pressure in real time to optimize the process; the zirconia ceramic or hard anodized aluminum alloy base provides wear-resistant and corrosion-resistant long-term support, achieving high-precision, highly compatible, and long-life side printing positioning. Attached Figure Description

[0013] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the front view of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the present invention from the left side view.

[0017] Figure 4 This is a schematic diagram of the structure of the present invention from the right side view.

[0018] In the diagram: 100, base; 101, positioning groove; 102, air intake hole; 200, clamping rod; 201, spring. Detailed Implementation

[0019] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0020] Please see Figure 1-4 This embodiment provides a side-printing positioning fixture, the overall structure of which includes a base 100 and a clamping rod assembly. The base 100 is generally rectangular in shape and is made of hard anodized aluminum alloy. The surface is precision machined to ensure the dimensional and positional accuracy of each positioning groove 101. Multiple positioning grooves 101 are formed along the length of the interior of the base 100. The cross-sectional shape of each positioning groove 101 is adapted to the cross-section of the product to be printed. For example, if the product is a rectangular block, the positioning groove 101 is a rectangular groove; if the product is cylindrical, the positioning groove 101 can be a V-shaped groove or an arc groove, etc. The depth of the positioning groove 101 is slightly less than the height of the product, ensuring that the top side of the product is exposed after placement for printing.

[0021] A clamping rod assembly, comprising multiple independent clamping rods 200, is installed at the left end of the base 100. Each clamping rod 200 corresponds to a positioning groove 101: the clamping rod 200 passes horizontally through a guide hole on the left side wall of the base 100, with its right end extending into the positioning groove 101 and its left end protruding outside the base 100 for the operator to pull. A spring 201, a compression spring, is fitted in the middle of the clamping rod 200. Its left end abuts against the inner side of the left side wall of the base 100, and its right end abuts against a push head inside the positioning groove 101. The push head is a rectangular metal block, fixed to the right end of the clamping rod 200 by a threaded connection, located within the positioning groove 101 and not exceeding the groove opening plane. In its natural state (when the clamping rod 200 is not pulled), the spring 201 pushes the push head, pushing the clamping rod 200 to the right, causing the push head to press against the right side wall of the positioning groove 101. When a product needs to be placed in, pull the left end of the clamping rod 200 outward. The pusher head moves to the left and compresses the spring 201. At this time, enough space is left on the left side of the positioning groove 101 to place the product. After the product is placed in place, release the clamping rod 200. The elastic force of the spring 201 immediately pushes the pusher head and the clamping rod 200 back to their original positions, pressing the product firmly against the right side wall of the positioning groove 101, thereby fixing the product in the horizontal direction.

[0022] It should be noted that this utility model includes, but is not limited to, a clamping rod assembly installed on the left end of the base 100, and also includes a clamping rod 200 assembly installed on the right end, front end and rear end. The specific installation direction is limited by specific requirements; at the same time, other setting positions are changed accordingly.

[0023] The suction port 102 is located on the side end of the base 100 away from the clamping rod 200, with its center height approximately the same as the center height of the push head, i.e., on the same horizontal plane as the clamping line of the clamping rod 200. Air channels are machined inside the base 100 corresponding to the position of each suction port 102. These air channels converge inside the base 100 to form a main air channel, which extends from the side of the base 100 and connects to an external vacuum generator via an air pipe. When the product is pressed into the positioning groove 101, the vacuum generator is activated, and the suction port 102 generates suction, firmly adhering the product to the right side of the positioning groove 101 near the base 100. Because the adsorption force and the clamping force act at the same height, the product is subjected to balanced forces, preventing tilting torque and thus ensuring stable fixation within the groove.

[0024] In this embodiment, a miniature pressure sensor is also installed at the bottom of the positioning groove 101. This sensor is embedded in the surface of the groove bottom. When the product is vacuum-adsorbed to the bottom, the sensor generates an electrical signal under pressure. By connecting to the control circuit, the contact pressure between the product and the groove bottom can be monitored in real time. If the pressure value is lower than a set threshold, it may indicate that the product is not completely attached to the groove bottom (e.g., there are foreign objects under the product or insufficient vacuum). In this case, the control system can issue a prompt, reminding the operator to check or re-clamp the product, thereby avoiding printing defects caused by poor positioning.

[0025] Working principle: First, the clamping rod 200 passes through the side end of the base 100 into the positioning groove 101, while the spring 201 is installed in the middle of the clamping rod 200. The pusher head is placed horizontally in the positioning groove 101 of the base 100, matching the clamping rod 200; the clamping rod 200 is then connected and fixed to the pusher head via a knob (threaded fixation). Next, the clamping rod 200 is pulled out so that the length of the space in the positioning groove 101 is greater than the product length. Then, the product is placed in the positioning groove 101, and the clamping rod 200 is released. The preload of the spring 201 causes the pusher head to clamp the product. Next, the fixture is placed on the printing press, and the product is attracted by vacuum to completely fix it before printing. Finally, after printing is completed, the clamping rod 200 is pulled out, and the product is removed.

[0026] As can be seen from the above, the clamping operation of this fixture is very simple, and the product loading and unloading time is significantly shortened. At the same time, due to the dual fixing of vacuum and spring 201, the product positioning accuracy is high and the printing quality is stable. For products of different sizes, only the compression of spring 201 needs to be adjusted to achieve automatic adaptation, without the need to change the fixture or adjust other mechanical parts. This allows for flexible production of a variety of products with a single fixture.

[0027] This utility model's fixture primarily addresses the problems of low positioning accuracy, complex operation, and unstable printing yield during side printing. The base 100 employs a high-precision machined frame structure to ensure overall stability and positioning accuracy. Through holes on both sides are provided for mounting clamping rods 200. By designing multiple adjustable clamping rods 200, each equipped with a spring 201, the fixture can adapt to products of different sizes and shapes, achieving fast and precise side positioning. Simultaneously, the base 100 of the fixture is equipped with suction holes 102 to effectively prevent product displacement during printing, ensuring printing quality. Furthermore, the fixture's ease of operation makes clamping and disassembly simple and quick, significantly improving production efficiency.

[0028] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A side-printing positioning fixture, characterized in that, include: The base has several positioning grooves inside, and the depth of the positioning grooves is less than the depth of the product to be printed; the base has air suction holes, which are used to connect a vacuum adsorption device to adsorb and fix the product. A clamping rod assembly is installed on both ends of the base; one end of the clamping rod assembly can be pulled along the length of the base and is connected to the base by a spring; by pulling the clamping rod assembly, the spring is stretched to expand the clamping space of the corresponding positioning groove, and after being released, the preload of the spring drives the clamping rod to reset, which is used to adapt to products of different sizes and shapes.

2. The side printing positioning fixture according to claim 1, characterized in that, The clamping rod assembly includes several independent clamping rods, each clamping rod corresponding to a positioning groove and installed on one end of the base.

3. The side printing positioning fixture according to claim 2, characterized in that, The clamping rod passes through one end of the base and enters the positioning groove, and the spring is sleeved in the middle of the clamping rod; a horizontally placed push head is provided in the positioning groove, the push head is located in the positioning groove and does not exceed the groove opening plane, and is connected to the end of the clamping rod by a thread; one end of the spring abuts against the base and the other end abuts against the push head, which is used to provide the elastic force for the clamping rod to return to its original position.

4. The side printing positioning fixture according to claim 3, characterized in that, The air intake hole is located on the base side end away from the clamping rod, and the central axis of the air intake hole is on the same horizontal plane as the clamping end of the clamping rod.

5. The side printing positioning fixture according to claim 1, characterized in that, A pressure sensor is installed at the bottom of the positioning groove to monitor the contact pressure between the product and the bottom of the groove in real time.

6. The side printing positioning fixture according to claim 1, characterized in that, The base is made of zirconia ceramic or hard anodized aluminum alloy.

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