Screen stretching clamp for anti-counterfeiting stained paper

Abstract

The utility model relates to the technical field of anti-fake stained paper, in particular to an anti-fake stained paper stretching clamp which comprises a stretching clamp body, two bottom plates are fixedly installed on the lower side of the stretching clamp body, and the inner side faces of the two bottom plates are rotationally connected with two-way threaded rotating shafts. The anti-fake stained paper can be positioned in the groove of the telescopic plate through the toothed plate at the sliding seat so that the anti-fake stained paper can be tightly fixed, then the two threaded supports move relatively so that the whole anti-fake stained paper can be elastically stretched, the situation that the anti-fake stained paper is fixed in a hard mode is avoided, and therefore the fixing effect of the stretching clamp is improved, and the service life of the stretching clamp is prolonged. The front side and the rear side of the anti-fake stained paper can be locked through the protruding plates and the positioning grooves at the two first pressing plates and the two second pressing plates, then the two electric push rods drive the two U-shaped bases to move, the front side and the rear side of the anti-fake stained paper are tensioned at the same time, the use stability of the net stretching clamp is ensured, and the anti-fake stained paper is safely and reliably clamped.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-counterfeiting decorative paper, in particular to a screen stretching fixture for anti-counterfeiting decorative paper. Background Technique

[0002] Anti-counterfeiting decorative paper refers to a general term for a type of special paper with marks on its surface or hidden marks inside, which is not easy to be counterfeited or used fraudulently. The reason for classifying it as special paper is that the manufacturing, performance, and use of this kind of paper are quite different from ordinary paper. The processing of anti-counterfeiting decorative paper requires the use of a screen stretching fixture.

[0003] In the prior art, the patent application number "CN202220999265.7" is disclosed, which is a pneumatic screen stretching tooling for holographic anti-counterfeiting hot stamping decorative paper. The screen stretching tooling includes a workbench, which fixes the wire mesh in a pneumatic or manual manner, with convenient adjustment. The fixing part is provided with multiple placement racks, which is convenient for installing and fixing the wire mesh frame, and rotates to adjust the position of the wire mesh frame, which is convenient for switching the mesh frame.

[0004] This screen stretching tooling can only conveniently fix the wire mesh frame. However, in the actual use process, since most screen stretching fixtures can only fix the anti-counterfeiting decorative paper in a relatively rigid manner, it is easy to damage the stretched anti-counterfeiting decorative paper, resulting in the inability to tightly stretch and process the anti-counterfeiting decorative paper well, thus affecting the fixing effect of the screen stretching fixture and being inconvenient to use. Content of the Utility Model

[0005] The purpose of the utility model is to provide a screen stretching fixture for anti-counterfeiting decorative paper to solve the problems raised in the above background technique.

[0006] The purpose of the utility model can be achieved by the following technical solutions:

[0007] A screen stretching fixture for anti-counterfeiting decorative paper includes a screen stretching fixture main body. Two bottom plates are fixedly installed on the lower side of the screen stretching fixture main body. A bidirectional threaded rotating shaft is rotatably connected to the inner sides of the two bottom plates. Two threaded brackets are threadedly connected to the outer surface of the bidirectional threaded rotating shaft. One side of each of the two threaded brackets is slidably connected with a telescopic plate. The upper sides of the two telescopic plates are both slidably connected with sliding seats. A first connecting spring is arrayed and connected between each of the two sliding seats and the telescopic plate.

[0008] Tooth plates are arrayed and installed on the lower sides of the two sliding seats. Grooves are arrayed and opened on the upper sides of the two telescopic plates. A second connecting spring is arrayed and connected between each of the two telescopic plates and the threaded bracket. Electric push rods are connected to both sides of the screen stretching fixture main body. L-shaped plates are installed on one side of each of the two electric push rods. U-shaped seats are slidably connected to one side of each of the two L-shaped plates.

[0009] Preferably, a connecting hand wheel is fixedly connected to the right side of the bidirectional threaded rotating shaft, and two cross bars are connected to the inner sides of the two bottom plates.

[0010] Preferably, movable plates are rotatably connected to both ends of the two sliding seats, U-shaped plates are fixedly connected to both ends of the two telescopic plates, and two rubber blocks are installed inside each of the four U-shaped plates.

[0011] Preferably, third connecting springs are arranged in an array between the two U-shaped seats and the L-shaped plate. A first pressing plate and a second pressing plate are slidably connected inside each of the two U-shaped seats. Convex plates are connected to the inner sides of the first pressing plate and the second pressing plate, and positioning grooves are formed in the inner sides of the first pressing plate and the second pressing plate. The convex plates and the positioning grooves are adaptively clamped with each other;

[0012] A first spring is arranged in an array between the first pressing plate and the U-shaped seat, a second spring is arranged in an array between the second pressing plate and the U-shaped seat. Positioning seats are fixedly connected to both ends of the first pressing plate, support plates are fixedly connected to both ends of the second pressing plate, and the lower side of the positioning seat is clamped with the inside of the support plate.

[0013] Preferably, embedding grooves are formed at both ends of the four movable plates. The embedding grooves are adapted to the rubber blocks, and the inner sides of the rubber blocks are clamped with both ends of the movable plates through the embedding grooves.

[0014] Preferably, the right side of the bidirectional threaded rotating shaft penetrates through the bottom plate and extends to the right side of the bottom plate. One side of the telescopic plate penetrates through the threaded bracket and extends to the other side of the threaded bracket. The lower side of the toothed plate is clamped with the upper side of the telescopic plate through the groove.

[0015] The beneficial effects of the present utility model:

[0016] 1. In the present utility model, the two telescopic plates with elasticity can adapt to anti-counterfeiting flower papers of different sizes. Then, the toothed plate at the sliding seat can position the anti-counterfeiting flower paper in the groove of the telescopic plate to firmly fix the anti-counterfeiting flower paper. Then, the two threaded brackets move relative to each other to elastically stretch the whole anti-counterfeiting flower paper, avoiding fixing the anti-counterfeiting flower paper in a rigid way, better protecting the anti-counterfeiting flower paper, and thus improving the fixing effect of the screen stretching jig;

[0017] 2. In the present utility model, the front and back sides of the anti-counterfeiting flower paper can be locked by using the convex plates and positioning grooves at the two first pressing plates and the second pressing plates. Then, the two electric push rods drive the two U-shaped seats to move while tightly stretching the front and back sides of the anti-counterfeiting flower paper, ensuring the stability during the use of the screen stretching jig and clamping the anti-counterfeiting flower paper safely and reliably. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts;

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is the present utility model Figure 1 a schematic diagram of the structure of the sliding seat and the toothed plate in;

[0021] Figure 3 is the present utility model Figure 1 a schematic diagram of the installation of the sliding seat and the second connecting spring in;

[0022] Figure 4 is the present utility model Figure 3 an enlarged view of part A in;

[0023] Figure 5 is the present utility model Figure 1 a schematic diagram of the installation of the bidirectional threaded rotating shaft and the threaded bracket in;

[0024] Figure 6 is the present utility model Figure 1 a schematic diagram of the structure of the L-shaped plate, U-shaped seat and the third connecting spring in;

[0025] Figure 7 is the present utility model Figure 1 a schematic diagram of the structure of the first pressing plate and the second pressing plate in;

[0026] Figure 8 is the present utility model Figure 7 an enlarged view of part B in;

[0027] The reference numerals in the figure are as follows:

[0028] 1. Main body of the screen stretching clamp; 2. Bottom plate; 3. Bidirectional threaded rotating shaft; 4. Connecting handwheel; 5. Threaded bracket; 6. Cross bar; 7. Telescopic plate; 8. Sliding seat; 9. First connecting spring; 10. Toothed plate; 11. Groove; 12. Second connecting spring; 13. Movable plate; 14. U-shaped plate; 15. Rubber block; 16. Electric push rod; 17. L-shaped plate; 18. Third connecting spring; 19. U-shaped seat; 20. First pressing plate; 21. Second pressing plate; 22. First spring; 23. Second spring; 24. Convex plate; 25. Positioning groove; 111. Embedding groove; 222. Positioning seat; 333. Support plate. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0030] As shown Figures 1 to 8 in the figure, an anti-counterfeiting flower paper stretching jig includes a stretching jig main body 1. Two bottom plates 2 are fixedly installed on the lower side of the stretching jig main body 1. A bidirectional threaded rotating shaft 3 is rotatably connected to the inner sides of the two bottom plates 2. Two threaded brackets 5 are threadedly connected to the outer surface of the bidirectional threaded rotating shaft 3. One side of each of the two threaded brackets 5 is slidably connected to a telescopic plate 7. The upper sides of the two telescopic plates 7 are both slidably connected to a sliding seat 8. A first connecting spring 9 is connected in an array between each of the two sliding seats 8 and the telescopic plate 7;

[0031] On the lower sides of the two sliding seats 8, tooth plates 10 distributed in an array are installed. On the upper sides of the two telescopic plates 7, grooves 11 distributed in an array are respectively opened. A second connecting spring 12 is connected in an array between each of the two telescopic plates 7 and the threaded bracket 5. Electric push rods 16 are connected to both sides of the stretching jig main body 1. On one side of each of the two electric push rods 16, an L-shaped plate 17 is installed. On one side of each of the two L-shaped plates 17, a U-shaped seat 19 is slidably connected.

[0032] A connecting hand wheel 4 is fixedly connected to the right side of the bidirectional threaded rotating shaft 3. Two cross bars 6 are connected to the inner sides of the two bottom plates 2. Through the arrangement of the two cross bars 6, the moving trajectories of the two threaded brackets 5 can be restricted by the two cross bars 6, so that the two threaded brackets 5 can move back and forth smoothly to clamp the anti-counterfeiting flower paper.

[0033] Moving plates 13 are rotatably connected to both ends of the two sliding seats 8. U-shaped plates 14 are fixedly connected to both ends of the two telescopic plates 7. Two rubber blocks 15 are installed inside each of the four U-shaped plates 14.

[0034] A third connecting spring 18 is connected in an array between each of the two U-shaped seats 19 and the L-shaped plate 17. Through the installation and use of the third connecting spring 18 and the U-shaped seat 19, the pulling force during clamping can be weakened by the two elastic U-shaped seats 19 to protect the anti-counterfeiting flower paper. A first pressing plate 20 and a second pressing plate 21 are slidably connected inside each of the two U-shaped seats 19. Through the installation and use of the first pressing plate 20 and the second pressing plate 21, the elastic pressing plates can be used to clamp and fix the anti-counterfeiting flower paper together to ensure the stability of the anti-counterfeiting flower paper. Convex plates 24 are connected to the inner sides of the first pressing plate 20 and the second pressing plate 21. Positioning grooves 25 are opened on the inner sides of the first pressing plate 20 and the second pressing plate 21. The convex plates 24 and the positioning grooves 25 are adaptively clamped with each other;

[0035] A first pressing plate 20 and a U-shaped seat 19 are connected in an array by a first spring 22, and a second pressing plate 21 and a U-shaped seat 19 are connected in an array by a second spring 23. Both ends of the first pressing plate 20 are fixedly connected with positioning seats 222, and both ends of the second pressing plate 21 are fixedly connected with support plates 333. Through the installation and use of the positioning seats 222 and the support plates 333, the two can be clamped with each other to reinforce the positioning effect of the two pressing plates. The lower side of the positioning seat 222 is clamped with the inside of the support plate 333.

[0036] Both ends of the four movable plates 13 are provided with embedding grooves 111, the embedding grooves 111 are adapted to rubber blocks 15, and the inner side surfaces of the rubber blocks 15 are clamped with both ends of the movable plates 13 through the embedding grooves 111.

[0037] The right side of the bidirectional threaded rotating shaft 3 penetrates through the bottom plate 2 and extends to the right side of the bottom plate 2. One side of the telescopic plate 7 penetrates through the threaded bracket 5 and extends to the other side of the threaded bracket 5. The lower side of the toothed plate 10 is clamped with the upper side of the telescopic plate 7 through the groove 11.

[0038] The working principle of an anti-counterfeiting flower paper stretching fixture provided by the present utility model is as follows:

[0039] By rotating the connecting handwheel 4, the connecting handwheel 4 can drive the bidirectional threaded rotating shaft 3 to rotate, so that the two threaded brackets 5 on the bidirectional threaded rotating shaft 3 can move towards each other or move relatively. In this way, the telescopic plate 7 with the second connecting spring 12 installed at the two threaded brackets 5 can adapt to anti-counterfeiting flower papers of different sizes. Then, the two sliding seats 8 with the first connecting spring 9 installed are respectively pulled upwards. Then, the left and right sides of the anti-counterfeiting flower paper are placed above the two telescopic plates 7. Subsequently, the elastic sliding seats 8 are released. In this way, the toothed plate 10 at the sliding seat 8 can position the anti-counterfeiting flower paper in the groove 11 of the telescopic plate 7 to tightly fix the anti-counterfeiting flower paper. Then, the two threaded brackets 5 move relatively to elastically stretch the entire anti-counterfeiting flower paper, avoiding fixing the anti-counterfeiting flower paper in a rigid manner, better protecting the anti-counterfeiting flower paper, and thus improving the fixing effect of the stretching fixture;

[0040] By rotating the movable plate 13 downwards, the movable plate 13 can be clamped into the rubber block 15 of the U-shaped plate 14 to limit and fix the sliding seat 8, so that the sliding seat 8 can be effectively fixed to further firmly stretch the anti-counterfeiting flower paper. Then, the front and rear sides of the anti-counterfeiting flower paper are placed between the first pressing plate 20 with the first spring 22 installed and the second pressing plate 21 with the second spring 23 installed to initially fix the anti-counterfeiting flower paper. Subsequently, the convex plates 24 and the positioning grooves 25 at the two first pressing plates 20 and the second pressing plates 21 can lock the front and rear sides of the anti-counterfeiting flower paper. Then, the two electric push rods 16 are simultaneously started. In this way, the two electric push rods 16 will drive the two U-shaped seats 19 to simultaneously tighten the front and rear sides of the anti-counterfeiting flower paper, ensuring the stability during the use of the stretching fixture and securely clamping the anti-counterfeiting flower paper.

[0041] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A mesh-stretching fixture for anti-counterfeiting decal paper, comprising a mesh-stretching fixture body (1), characterized in that: Two bottom plates (2) are fixedly installed on the lower side of the mesh clamp body (1); the inner side surfaces of the two bottom plates (2) are rotatably connected with a bidirectional threaded shaft (3); the outer surface of the bidirectional threaded shaft (3) is threadedly connected with two threaded brackets (5); one side of the two threaded brackets (5) is slidably connected with a telescopic plate (7); the upper sides of the two telescopic plates (7) are slidably connected with a slide seat (8); and a first connecting spring (9) is arrayed between the two slide seats (8) and the telescopic plates (7); The lower sides of the two slide seats (8) are both provided with array-distributed tooth plates (10), the upper sides of the two telescopic plates (7) are both provided with array-distributed grooves (11), the two telescopic plates (7) and the threaded brackets (5) are both connected with second connecting springs (12) in an array, the two sides of the mesh clamp body (1) are both connected with electric push rods (16), one side of the two electric push rods (16) is both provided with L-shaped plates (17), and one side of the two L-shaped plates (17) is both slidably connected with U-shaped seats (19).

2. The anti-counterfeiting paper stretching fixture according to claim 1, characterized in that: A connecting hand wheel (4) is fixedly connected to the right side of the bidirectional threaded rotating shaft (3), and two cross bars (6) are connected to the inner side surfaces of the two bottom plates (2).

3. The screen-stretching fixture for anti-counterfeiting decal paper according to claim 1, characterized in that: Both ends of the two slide seats (8) are rotatably connected with movable plates (13), both ends of the two telescopic plates (7) are fixedly connected with U-shaped plates (14), and two rubber blocks (15) are installed inside the four U-shaped plates (14).

4. The screen-stretching fixture for anti-counterfeiting decal paper according to claim 1, characterized in that: A third connecting spring (18) is connected in an array between the two U-shaped seats (19) and the L-shaped plate (17); a first pressing plate (20) and a second pressing plate (21) are slidably connected inside the two U-shaped seats (19); the inner sides of the first pressing plate (20) and the second pressing plate (21) are connected to a convex plate (24); the inner sides of the first pressing plate (20) and the second pressing plate (21) are provided with a positioning groove (25); the convex plate (24) and the positioning groove (25) are adapted to be snap-fitted; A first spring (22) is connected in an array between the first pressure plate (20) and the U-shaped seat (19), and a second spring (23) is connected in an array between the second pressure plate (21) and the U-shaped seat (19). Both ends of the first pressure plate (20) are fixedly connected to a positioning seat (222), and both ends of the second pressure plate (21) are fixedly connected to a support plate (333). The lower side of the positioning seat (222) is clamped with the inside of the support plate (333).

5. The screen-stretching fixture for anti-counterfeiting decal paper according to claim 3, characterized in that: Both ends of the four movable plates (13) are provided with embedding grooves (111), the embedding grooves (111) are adapted to the rubber blocks (15), and the inner side surfaces of the rubber blocks (15) are clamped with the two ends of the movable plates (13) through the embedding grooves (111).

6. The screen-stretching fixture for anti-counterfeiting decal paper according to claim 1, characterized in that: The right side of the bidirectional threaded shaft (3) passes through the bottom plate (2) and extends to the right side of the bottom plate (2); one side of the telescopic plate (7) passes through the threaded bracket (5) and extends to the other side of the threaded bracket (5); the lower side of the toothed plate (10) is clamped with the upper side of the telescopic plate (7) via a groove (11).

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