Limiting mechanism of plastic vacuum forming machine

Abstract

The utility model discloses a limiting mechanism of a plastic vacuum forming machine, which relates to the technical field of limiting mechanisms and comprises a connecting plate, a supporting structure and a pressing structure are arranged below the connecting plate, the pressing structure comprises a pressing plate and a bonding layer, a pressure buffering extrusion pad is arranged below the pressing plate, and the bonding layer is used for fixing the position between the extrusion pad and the pressing plate. By means of the limiting mechanism composed of the supporting structure, the pressing structure and the fixing structure, the position of a formed product can be limited when the formed product needs to be cut, meanwhile, after the product is used for a long time and is abraded or damaged due to contact, the damaged pressing mechanism can be independently disassembled, and therefore the product can be conveniently and rapidly cut. Therefore, the cost loss caused by overall disassembly and the increase of the disassembly difficulty can be avoided, the use cost of the limiting mechanism is effectively reduced, meanwhile, convenience and flexibility are provided for disassembly and assembly between the structures, and the practicability of the limiting mechanism is further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of limit mechanisms, and particularly relates to a limit mechanism for a plastic suction machine. Background Technique

[0002] The main working process of a plastic suction machine is to heat and soften a plastic film, then vacuum form the plastic film through a mold, cool it through air cooling, and then cut the plastic suction product through a cutting mechanism. During the cutting process of the plastic suction product, in order to avoid affecting the cutting effect due to product displacement, it is usually necessary to limit the position of the product.

[0003] Existing limit mechanisms for plastic suction machines, such as a Chinese patent with the document application number 202320831477,9 and the name of a limit mechanism for a plastic suction machine. In this patent, although a driving structure drives a pressing plate and an anti-slip foot pad to press and limit the product, most of the structures are integrally arranged. When the formed limit mechanism is worn and damaged during long-term use, in order to ensure the effectiveness of the limit, the overall structure needs to be replaced, resulting in an increase in the cost of the limit mechanism. At the same time, the disassembly of the overall structure takes a long time and has low efficiency, which also affects the limitation of the plastic suction product and reduces the effectiveness and practicality of the limit structure. Therefore, in order to solve the above problems, a limit structure for a plastic suction machine is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a limit mechanism for a plastic suction machine to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A limit mechanism for a plastic suction machine, including a connecting plate, a support structure and a pressing structure are arranged below the connecting plate. The pressing structure includes:

[0006] A pressing plate, the pressing plate is movably arranged below the connecting plate, and an extrusion pad for pressure buffering is fixedly arranged below the pressing plate;

[0007] An adhesive layer, the adhesive layer is fixedly arranged between the extrusion pad and the pressing plate, and the adhesive layer is used for fixing the position between the extrusion pad and the pressing plate.

[0008] Preferably, the support structure includes:

[0009] A support frame, the bottom end of the support frame penetrates through the top end of the pressing plate, and connecting holes are symmetrically arranged at the top end of the pressing plate;

[0010] An expansion rod, the expansion rod is fixedly arranged between the support frame and the connecting plate, and the expansion rod is used for adjusting the vertical position of the support frame.

[0011] Preferably, a fixing structure is provided between the support frame and the pressing plate, and the fixing structure includes:

[0012] A fixing groove is formed in the inner cavity of the pressing plate and communicates with both sides of the pressing plate;

[0013] A fixing rod is movably inserted into the inner cavity of the fixing groove and penetrates through the outer wall of the support frame.

[0014] Preferably, a stabilizing structure is symmetrically arranged on the outer wall of the support frame. The stabilizing structure includes a collar, the collar is sleeved on the outer wall of the support frame, and stabilizing rods are symmetrically and fixedly arranged on the outer wall of the collar.

[0015] Preferably, the fixing structure further includes:

[0016] A positioning groove is formed in the outer wall of the fixing rod;

[0017] A positioning rod is inserted into the inner cavity of the positioning groove, and the cross-section of the positioning rod is T-shaped.

[0018] Preferably, the adhesive layer is a double-sided peelable adhesive, the bottom end of the extrusion pad is wavy, and the extrusion pad is any one of elastic rubber or elastic silica gel.

[0019] The technical effects and advantages of the present utility model:

[0020] The limiting mechanism composed of the support structure, the pressing structure and the fixing structure of the present utility model can limit the position of the product when it needs to be cut after molding. At the same time, after long-term use, when wear or damage occurs due to contact with the product, the damaged pressing mechanism can be separately disassembled, thereby avoiding the cost loss and increased disassembly difficulty caused by overall disassembly, effectively reducing the use cost of the limiting mechanism, and also providing convenience and flexibility for the disassembly and assembly between structures, thereby enhancing the practicability of the limiting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0022] Figure 2 is a three-dimensional structural schematic diagram of the fixing structure of the present utility model.

[0023] Figure 3 is a sectional structural schematic diagram of the pressing structure of the present utility model.

[0024] In the figure: 1. Connecting plate; 2. Support structure; 201. Support frame; 202. Telescopic rod; 203. Connecting hole; 3. Pressing structure; 301. Pressing plate; 302. Extrusion pad; 303. Adhesive layer; 4. Fixing structure; 401. Fixing rod; 402. Fixing groove; 403. Positioning groove; 404. Positioning rod; 5. Stabilizing structure; 501. Collar; 502. Stabilizing rod. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] The present invention provides a Figures 1-3 shown plastic suction machine limiting mechanism, including a connecting plate 1. The connecting plate 1 is used to install the lower structure on a suitable installation surface. A support structure 2 and a pressing structure 3 are arranged below the connecting plate 1. The pressing structure 3 includes a pressing plate 301 and an adhesive layer 303. The pressing plate 301 is movably arranged below the connecting plate 1. An extrusion pad 302 for pressure buffering is fixedly arranged below the pressing plate 301. The adhesive layer 303 is fixedly arranged between the extrusion pad 302 and the pressing plate 301. The adhesive layer 303 is used for fixing the position between the extrusion pad 302 and the pressing plate 301. The adhesive layer 303 is a double-sided tearable adhesive. The bottom end of the extrusion pad 302 is wavy. The extrusion pad 302 is any one of elastic rubber or elastic silica gel. When cutting the product formed by plastic suction, the pressing plate 301 presses and limits it to avoid affecting the cutting effect due to movement during the cutting process. By arranging the extrusion pad 302 at the bottom end of the pressing plate 301, the indentation on the product can be reduced. At the same time, for products with an arc-shaped contact surface, the wavy setting at the bottom end of the extrusion pad 302 can make multi-point contact with the product, so as to be applicable to the limiting of different products. The structure is simple, the cost is low, and the practicability is strong. At the same time, the setting of the adhesive layer 303 can adhere and fix the extrusion pad 302 at the bottom end of the pressing plate 301. On the basis that the extrusion pad 302 can be stably used, it can also be flexibly disassembled from the pressing plate 301. Therefore, after the extrusion pad 302 is affected by the product temperature or damaged by friction, it can be disassembled and replaced separately without disassembling and replacing the entire pressing plate 301, reducing the time and cost of the overall disassembly and assembly between the structures, and at the same time improving the flexibility and effectiveness of the disassembly, assembly and use between the structures.

[0027] Further, the support structure 2 includes a support frame 201 and a telescopic rod 202. The bottom end of the support frame 201 penetrates and presses against the top end of the pressing plate 301. Connection holes 203 are symmetrically formed at the top end of the pressing plate 301. The telescopic rod 202 is fixedly arranged between the support frame 201 and the connecting plate 1. The telescopic rod 202 is used to adjust the vertical position of the support frame 201. The telescopic rod 202 can be either an electric telescopic rod or a manual telescopic rod, and is appropriately selected according to the actual use environment. The setting of the telescopic rod 202 can drive the support frame 201 to move vertically, thereby indirectly driving the pressing plate 301 to adjust its vertical position, so as to facilitate the limitation of products with different heights. The support frame 201 is in a concave shape. The two ends of the support frame 201 are respectively inserted and connected to the inner cavity of the connection holes 203 symmetrically formed on the pressing plate 301, so that the pressing plate 301 can move with the movement of the support frame 201, thus providing convenience for the limitation of different products.

[0028] Furthermore, a fixing structure 4 is arranged between the support frame 201 and the pressing plate 301. The fixing structure 4 includes a fixing groove 402 and a fixing rod 401. The fixing groove 402 is formed in the inner cavity of the pressing plate 301 and communicates with both sides of the pressing plate 301. The fixing rod 401 is movably inserted into the inner cavity of the fixing groove 402 and penetrates through the outer wall of the support frame 201. The fixing structure 4 further includes a positioning groove 403 and a positioning rod 404. The positioning groove 403 is formed in the outer wall of the fixing rod 401. The positioning rod 404 is inserted into the inner cavity of the positioning groove 403, and the cross-section of the positioning rod 404 is in a T shape. After the fixing rod 401 is inserted and connected with the connection hole 203 on the support frame 201, it will be inserted and connected to the inner cavity of the fixing groove 402. The fixing rod 401 is in a T shape, which is convenient for restricting the position of one end. After the other end of the fixing rod 401 penetrates to the other side of the pressing plate 301, the positioning groove 403 will be exposed. Then, the positioning rod 404 is squeezed and inserted into the inner cavity of the positioning groove 403 from top to bottom, so that the position of the fixing rod 401 in the inner cavity of the fixing groove 402 can be restricted. The positioning rod 404 is made of rubber. Although it has elasticity, it can also restrict the position of the fixing rod 401 through its protruding top end. At the same time, the positioning rod 404 is inserted and fixed by being squeezed with the positioning groove 403, which also provides convenience for the subsequent disassembly of the two.

[0029] Finally, a stabilizing structure 5 is symmetrically arranged on the outer wall of the support frame 201. The stabilizing structure 5 includes a collar 501 which is sleeved on the outer wall of the support frame 201. Symmetrically and fixedly arranged on the outer wall of the collar 501 are stabilizing rods 502. An internal thread is provided on the inner wall of the collar 501, and an external thread is provided on the outer wall of the support frame 201. The collar 501 is in threaded connection with the support frame 201 in an interpenetrating manner. By rotating the collar 501, while driving the stabilizing rods 502 to rotate, the height of the stabilizing rods 502 can also be adjusted, so that the bottom ends of the stabilizing rods 502 can be brought into contact and extrusion with the top ends of the pressing plates 301, thereby strengthening the balance of the pressure of the pressing plates 301 and improving the firmness and effectiveness of the limiting of the pressing plates 301.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A limiting mechanism for a blister machine, comprising a connecting plate (1), characterized in that: A supporting structure (2) and a clamping structure (3) are provided below the connecting plate (1), and the clamping structure (3) comprises: A pressing plate (301), the pressing plate (301) being movably arranged below the connecting plate (1), and a pressure-buffering squeezing pad (302) being fixedly arranged below the pressing plate (301); An adhesive layer (303), wherein the adhesive layer (303) is fixedly disposed between the compression pad (302) and the pressing plate (301), and the adhesive layer (303) is used to fix the position between the compression pad (302) and the pressing plate (301).

2. A limiting mechanism for a blister machine according to claim 1, characterized in that: The support structure (2) comprises: A support frame (201), wherein the bottom end of the support frame (201) is inserted through the top end of the pressing plate (301), and the top end of the pressing plate (301) is symmetrically provided with connection holes (203); A telescopic rod (202), wherein the telescopic rod (202) is fixedly arranged between the support frame (201) and the connecting plate (1), and the telescopic rod (202) is used to adjust the vertical position of the support frame (201).

3. A limiting mechanism for a blister machine according to claim 2, characterized in that: A fixing structure (4) is provided between the support frame (201) and the pressing plate (301), and the fixing structure (4) comprises: A fixing groove (402), wherein the fixing groove (402) is disposed in the inner cavity of the pressing plate (301) and is in communication with two sides of the pressing plate (301); A fixing rod (401) is movably inserted into the inner cavity of the fixing groove (402) and penetrates the outer wall of the support frame (201).

4. A limiting mechanism for a blister machine according to claim 2, characterized in that: The outer wall of the support frame (201) is symmetrically provided with a stabilizing structure (5), and the stabilizing structure (5) comprises a collar (501), the collar (501) is sleeved on the outer wall of the support frame (201), and the outer wall of the collar (501) is symmetrically fixed with a stabilizing rod (502).

5. A limiting mechanism for a blister machine according to claim 3, characterized in that: The fixing structure (4) further comprises: A positioning groove (403), wherein the positioning groove (403) is formed on the outer wall of the fixing rod (401); A positioning rod (404), wherein the positioning rod (404) is inserted into the inner cavity of the positioning groove (403), and the cross section of the positioning rod (404) is T-shaped.

6. A limiting mechanism for a blister machine according to claim 1, characterized in that: The adhesive layer (303) is a double-sided tearable adhesive, the bottom end of the extrusion pad (302) is wavy, and the extrusion pad (302) is any one of elastic rubber and elastic silicone.

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