High-stability thermal forming trimming device

Abstract

The utility model relates to the technical field of thermal forming processing, in particular to a high-stability thermal forming trimming device. The technical problems that a common thermal forming edge cutting device is usually of a thermal forming non-pressing die inner edge cutting structure, edge cutting is conducted firstly, then forming is conducted, the edge cutting stability is low, meanwhile, in the material pressing process, the edge cutting structure located in a pressing die rubs with moving materials in the forming process, and the service life of a cutting edge is shortened are solved. According to the technical scheme, the high-stability thermal forming trimming device comprises a mounting table. The material pressing and edge cutting work is carried out through the arranged material pressing and edge cutting assembly, the edge cutting structure is arranged on the outer side of the pressing structure, hot forming pressing is carried out firstly, then edge cutting is carried out, the edge cutting stability is improved, materials are contacted only in the edge cutting process, and the service life of the edge cutting structure is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of thermoforming processing, in particular to a thermoforming trimming device with high stability. Background Technique

[0002] A thermoforming trimming device is a device used for forming and trimming thermoplastic materials or plastic sheets after heating and softening. This kind of device is usually used for producing common industrial products, such as plastic boxes, trays, packaging materials, etc.

[0003] Common thermoforming trimming devices are usually of the internal trimming structure of a thermoforming die without a blank holder. They trim the edges first and then form. The trimming stability is relatively low. At the same time, during the material pressing process, the trimming structure inside the press die rubs against the moving material during the forming process, reducing the service life of the cutting edge.

[0004] Therefore, aiming at the problems of the internal trimming structure of the thermoforming trimming device without a blank holder, trimming the edges first and then forming, with relatively low trimming stability and reducing the service life of the cutting edge, it is urgently needed to be solved to improve the usage scenario. Content of the Utility Model

[0005] In order to overcome the problems of common thermoforming trimming devices, which have an internal trimming structure of a thermoforming die without a blank holder, trim the edges first and then form, with relatively low trimming stability and reducing the service life of the cutting edge.

[0006] The technical solution of the utility model is: a thermoforming trimming device with high stability, including an installation table. A connecting plate is fixedly connected to the middle position at the top of the installation table. Positioning plates are arranged at the front and rear ends of the connecting plate. A lower die is installed at the middle position at the upper end of the connecting plate. Support bars are installed at the top of the front and rear ends of the installation table. A top plate is arranged at the upper end of the support bars. Guide rods are arranged between the front and rear ends of the top plate and the front and rear ends of the installation table. A blank-holding and trimming assembly is connected to the bottom of the top plate.

[0007] Preferably, the blank-holding and trimming assembly is used for blank-holding and trimming work. By arranging the trimming structure outside the pressing structure, thermoforming pressing is carried out first, and then trimming is carried out, improving the trimming stability. The trimming structure only contacts the material during trimming, extending the service life of the trimming structure, so as to solve the problems of common thermoforming trimming devices, which are usually of the internal trimming structure of a thermoforming die without a blank holder, trim the edges first and then form, with relatively low trimming stability. At the same time, during the material pressing process, the trimming structure inside the press die rubs against the moving material during the forming process, reducing the service life of the cutting edge.

[0008] As a preference, the blank-holding and trimming assembly includes a first hydraulic rod and a mounting plate. The first hydraulic rod is connected to the bottom of the top plate near the corner position. The mounting plate is installed at the lower end of the first hydraulic rod. The first hydraulic rod can control the downward pressure of the mounting plate.

[0009] Preferably, the blank-holding and trimming assembly includes a connecting bar and a through groove; connecting bars are arranged at the front and rear ends of the mounting plate, and a through groove is formed in the middle of the connecting bar. The guide rod is slidably connected to the through groove, and the guide rod plays a role in guiding and limiting.

[0010] Preferably, the blank-holding and trimming assembly includes an upper pressing die; an upper pressing die is arranged at the bottom of the mounting plate, and the forming groove in the middle of the upper pressing die matches the shape of the lower die. When the mounting plate drives the upper pressing die to press down, the material placed on the top of the lower die can be pressed into shape through the cooperation of the lower die and the upper pressing die.

[0011] Preferably, the blank-holding and trimming assembly includes a fixed bar, a second hydraulic rod, and a trimming knife; fixed bars are connected to the left and right ends of the mounting plate, the second hydraulic rods are connected to the bottoms of the front and rear ends of the fixed bars, and the trimming knife is installed at the lower end of the second hydraulic rod. The lower end of the trimming knife is higher than the bottom of the upper pressing die. During the pressing process, the trimming knife does not contact the material throughout the process. After the pressing is completed, the second hydraulic rod is controlled to drive the trimming knife to descend to complete the cutting work on the edge of the material, improving the stability of trimming. At the same time, the trimming knife only contacts the material during trimming, extending the service life of the trimming knife.

[0012] Preferably, the blank-holding and trimming assembly includes a convex strip and a sliding groove; a convex strip is arranged on the side of the trimming knife close to the upper pressing die, and sliding grooves are formed on the left and right sides of the upper pressing die. The convex strip is slidably connected to the sliding groove, playing a role in guiding and limiting the trimming knife.

[0013] Advantages of the present utility model:

[0014] 1. The blank-holding and trimming work is carried out through the provided blank-holding and trimming assembly. By arranging the trimming structure outside the pressing structure, hot forming pressing is carried out first, and then trimming is carried out, improving the stability of trimming. The trimming structure only contacts the material during trimming, extending the service life of the trimming structure, so as to solve the problems of common hot forming trimming devices, which are usually internal trimming structures without a blank-holding die for hot forming, trimming first and then forming, with relatively low trimming stability. At the same time, during the material pressing process, the trimming structure inside the pressing die rubs against the moving material during the forming process, reducing the service life of the cutting edge.

[0015] 2. The blank-holding and trimming assembly includes a fixed bar, a second hydraulic rod, and a trimming knife; fixed bars are connected to the left and right ends of the mounting plate, the second hydraulic rods are connected to the bottoms of the front and rear ends of the fixed bars, and the trimming knife is installed at the lower end of the second hydraulic rod. The lower end of the trimming knife is higher than the bottom of the upper pressing die. During the pressing process, the trimming knife does not contact the material throughout the process. After the pressing is completed, the second hydraulic rod is controlled to drive the trimming knife to descend to complete the cutting work on the edge of the material, improving the stability of trimming. At the same time, the trimming knife only contacts the material during trimming, extending the service life of the trimming knife. Description of the Drawings

[0016] Figure 1 The figure shows a three-dimensional structural schematic diagram of a high-stability thermoforming trimming device of the present utility model;

[0017] Figure 2 The figure shows a schematic diagram of the installation structure of the lower die of a high-stability thermoforming trimming device of the present utility model;

[0018] Figure 3 The figure shows a schematic diagram of the installation structure of the blank holding and trimming assembly of a high-stability thermoforming trimming device of the present utility model;

[0019] Figure 4 The figure shows a schematic diagram of the installation structure of the trimming knife of a high-stability thermoforming trimming device of the present utility model.

[0020] In the figure: 1, mounting table; 2, connecting plate; 3, positioning plate; 4, lower die; 5, support bar; 6, top plate; 7, guide rod; 8, blank holding and trimming assembly; 801, first hydraulic rod; 802, mounting plate; 803, connecting bar; 804, through slot; 805, upper pressing die; 806, fixing bar; 807, second hydraulic rod; 808, trimming knife; 809, convex strip; 810, sliding slot. Specific embodiments

[0021] The present utility model will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please refer to Figure 1-2 , the present utility model provides an embodiment: a high-stability thermoforming trimming device, including a mounting table 1, a connecting plate 2 is fixedly connected to the middle position of the top of the mounting table 1, positioning plates 3 are arranged at the front and rear ends of the connecting plate 2, a lower die 4 is installed at the middle position of the upper end of the connecting plate 2, support bars 5 are installed at the top of the front and rear ends of the mounting table 1, a top plate 6 is arranged at the upper end of the support bars 5, guide rods 7 are arranged between the front and rear ends of the top plate 6 and the front and rear ends of the mounting table 1, and a blank holding and trimming assembly 8 is connected to the bottom of the top plate 6.

[0023] Please refer to Figure 3, in this embodiment, the blank holding and trimming assembly 8 includes a first hydraulic rod 801 and a mounting plate 802; the first hydraulic rod 801 is connected to the bottom of the top plate 6 near the corner position, and the lower end of the first hydraulic rod 801 is equipped with the mounting plate 802. The first hydraulic rod 801 can control the downward pressure of the mounting plate 802. The blank holding and trimming assembly 8 includes a connecting bar 803 and a through groove 804; the connecting bars 803 are arranged at the front and rear ends of the mounting plate 802, and a through groove 804 is opened in the middle of the connecting bar 803. The guide rod 7 is slidably connected to the through groove 804, and the guide rod 7 plays a role in guiding and limiting. The blank holding and trimming assembly 8 includes an upper pressing die 805; the upper pressing die 805 is arranged at the bottom of the mounting plate 802, and the forming groove in the middle of the upper pressing die 805 matches the shape of the lower die 4. When the mounting plate 802 drives the upper pressing die 805 to press down, the material placed on the top of the lower die 4 can be pressed into shape through the cooperation of the lower die 4 and the upper pressing die 805.

[0024] Please refer to Figure 4 , in this embodiment, the blank holding and trimming assembly 8 includes a fixed bar 806, a second hydraulic rod 807, and a trimming knife 808; the fixed bars 806 are connected to the left and right ends of the mounting plate 802, the second hydraulic rods 807 are connected to the bottoms of the front and rear ends of the fixed bars 806, and the trimming knife 808 is installed at the lower end of the second hydraulic rod 807. The lower end of the trimming knife 808 is higher than the bottom of the upper pressing die 805. During the pressing process, the trimming knife 808 does not contact the material throughout the process. After the pressing is completed, the second hydraulic rod 807 is controlled to drive the trimming knife 808 to descend to complete the cutting work on the edge of the material, improving the stability of trimming. At the same time, the trimming knife 808 only contacts the material during trimming, extending the service life of the trimming knife 808. The blank holding and trimming assembly 8 includes a convex strip 809 and a sliding groove 810; a convex strip 809 is arranged on the side of the trimming knife 808 close to the upper pressing die 805, and sliding grooves 810 are opened on both sides of the upper pressing die 805. The convex strip 809 is slidably connected to the sliding groove 810, playing a role in guiding and limiting the trimming knife 808.

[0025] During operation, the first hydraulic rod 801 can control the downward pressure of the mounting plate 802. The connecting bars 803 are arranged at the front and rear ends of the mounting plate 802, and a through groove 804 is opened in the middle of the connecting bar 803. The guide rod 7 is slidably connected to the through groove 804, and the guide rod 7 plays a role in guiding and limiting. When the mounting plate 802 drives the upper pressing die 805 to press down, the material placed on the top of the lower die 4 can be pressed into shape through the cooperation of the lower die 4 and the upper pressing die 805. The lower end of the trimming knife 808 is higher than the bottom of the upper pressing die 805. During the pressing process, the trimming knife 808 does not contact the material throughout the process. After the pressing is completed, the second hydraulic rod 807 is controlled to drive the trimming knife 808 to descend to complete the cutting work on the edge of the material, improving the stability of trimming. At the same time, the trimming knife 808 only contacts the material during trimming, extending the service life of the trimming knife 808.

[0026] Through the above steps, the blank holding and trimming component 8 is used for blank holding and trimming work. By arranging the trimming structure outside the pressing structure, hot forming pressing is carried out first, and then trimming is carried out, which improves the stability of trimming. The trimming structure only contacts the material during trimming, prolonging the service life of the trimming structure, so as to solve the problems of common hot forming trimming devices, usually the in-die trimming structure without blank holding for hot forming, trimming first and then forming, with relatively low trimming stability. At the same time, during the material pressing process, the trimming structure inside the press die rubs against the moving material during the forming process, reducing the service life of the cutting edge.

[0027] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the gist of the present invention.

Claims

1. A high-stability thermoforming trimming device, comprising a mounting table (1), characterized in that: A connecting plate (2) is fixedly connected to the middle position of the top of the mounting platform (1), positioning plates (3) are arranged at the front and rear ends of the connecting plate (2), a lower mold (4) is installed at the middle position of the upper end of the connecting plate (2), support bars (5) are installed at the top of the front and rear ends of the mounting platform (1), a top plate (6) is arranged at the upper end of the support bar (5), guide rods (7) are arranged between the front and rear ends of the top plate (6) and the front and rear ends of the mounting platform (1), and a material pressing and trimming assembly (8) is connected to the bottom of the top plate (6).

2. A high-stability thermoforming trimming device according to claim 1, characterized in that: The pressing and trimming assembly (8) comprises a first hydraulic rod (801) and a mounting plate (802); the first hydraulic rod (801) is connected to the bottom of the top plate (6) near the corner, and the mounting plate (802) is mounted on the lower end of the first hydraulic rod (801).

3. A high-stability thermoforming trimming device according to claim 2, characterized in that: The pressing and trimming assembly (8) comprises a connecting strip (803) and a through slot (804); the connecting strips (803) are arranged at the front and rear ends of the mounting plate (802); a through slot (804) is arranged in the middle of the connecting strip (803); and the guide rod (7) is slidably connected to the through slot (804).

4. A high-stability thermoforming trimming device according to claim 3, characterized in that: The pressing and trimming assembly (8) comprises an upper pressing die (805); the upper pressing die (805) is arranged at the bottom of the mounting plate (802), and the molding groove in the middle of the upper pressing die (805) matches the shape of the lower die (4).

5. A high-stability thermoforming trimming device according to claim 4, characterized in that: The press and trim assembly (8) comprises a fixing bar (806), a second hydraulic rod (807), and a trimming knife (808); the fixing bars (806) are connected to the left and right ends of the mounting plate (802); the second hydraulic rod (807) is connected to the bottom of the front and rear ends of the fixing bar (806); the trimming knife (808) is installed at the lower end of the second hydraulic rod (807); and the lower end of the trimming knife (808) is higher than the bottom of the upper die (805).

6. A high-stability thermoforming trimming device according to claim 5, characterized in that: The pressing and trimming assembly (8) comprises a convex strip (809) and a sliding groove (810); the trimming knife (808) is provided with a convex strip (809) on one side close to the upper pressing die (805), and the upper pressing die (805) is provided with sliding grooves (810) on both sides, and the convex strip (809) is slidably connected to the sliding grooves (810).

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