Finish machining device of thermal forming die

Abstract

The invention provides a finish machining device for a thermal forming die. The finish machining device comprises a support, the support is connected with a driving mechanism, the support is connected with an adjusting device, the adjusting device is connected with a limiting device, and the adjusting device comprises a rotating disc, a lead screw, a lifting disc, a fixing disc, an L-shaped rod, a grinding rod, an I-shaped sliding block, an arm rod, a lifting disc and a telescopic assembly. The L-shaped rod is connected with a stop block assembly; the fixing disc is connected with an ejector rod assembly. A screw rod is driven to rotate through a rotating motor, so that a lifting disc ascends and descends, an arm rod rotates, a grinding rod moves, the grinding rod is adjusted, an L-shaped ejector rod is reset through the elastic force of a first spring, the grinding rod is ejected to a horizontal state, the rotating motor is driven to descend through a pneumatic cylinder, and a square shell enters an annular groove; and a moving block is extruded through a square shell, so that the moving block moves, a limiting block is separated from a limiting groove, a rotating motor can drive a lead screw and a rotating disc to rotate synchronously, and thus a grinding rod rotates.

Description

Technical Field

[0001] The invention relates to the technical field of mold processing, and mainly relates to a finishing device for a thermoforming mold. Background Art

[0002] In the manufacturing process of plastic products, thermoforming is usually used. Thermoforming is a commonly used plastic product manufacturing process. In the thermoforming process, thermoforming molds are needed for processing. During the production process of existing thermoforming molds, the mold cavity needs to be finely processed and polished to ensure that the surface of the thermoformed product is smooth and burr-free.

[0003] The existing method is usually to use a handheld grinding device and insert the grinding head into the blind hole for grinding. However, when grinding forming holes with different apertures, it is necessary to replace the grinding heads of different specifications for grinding. It is not convenient to use and it is difficult to grind the surface of the mold. Therefore, it is necessary to design a finishing device for thermoforming molds to solve the above problems. Summary of the Invention

[0004] The object of the present invention is to provide a finishing device for a thermoforming mold to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a finishing device for a thermoforming mold, comprising a bracket, the top of the bracket is connected to a driving mechanism, the bottom of the bracket is connected to an adjusting device, one side of the adjusting device is connected to a limiting device, the adjusting device comprises a turntable rotatably connected to the bottom of the bracket, a screw rod rotatably connected to the center of the turntable and a lifting plate piercingly connected to the top of the screw rod, the top of the screw rod is connected to the driving mechanism, the bottom of the screw rod is rotatably connected to a fixed plate, both sides of the fixed plate are slidably connected to an L-shaped rod, one side of the bottom of the L-shaped rod is rotatably connected to a polishing rod, one side of the top of the L-shaped rod is slidably connected to an I-shaped slider, one side of the I-shaped slider is rotatably connected to an arm rod, the top of the arm rod is rotatably connected to the lifting plate, and both sides of the top of the lifting plate are connected to telescopic components;

[0006] One side of the bottom of the L-shaped rod is connected to a stopper assembly, and the stopper assembly cooperates with the polishing rod;

[0007] Both sides of the fixing plate are connected to push rod assemblies, and the push rod assemblies are matched with the polishing rod.

[0008] In the present invention, the rotation of the screw rod facilitates the lifting and lowering of the lifting plate, thereby rotating the arm rod, and then moving the L-shaped rod and the polishing rod to achieve adjustment of the polishing rod. The screw rod and the turntable rotate synchronously to achieve polishing of the mold.

[0009] Furthermore, the driving mechanism includes a pneumatic cylinder connected to the top of the bracket, a fixed plate connected to the driving end of the pneumatic cylinder and a rotating motor connected to the bottom of the fixed plate, and the driving end of the rotating motor cooperates with the screw and the turntable.

[0010] In the present invention, the pneumatic cylinder facilitates the lifting and lowering of the rotary motor, and the rotary motor facilitates the rotation of the lead screw and the turntable.

[0011] Furthermore, the telescopic assembly includes a telescopic rod connected to the top of the lifting plate and a fixed cylinder slidably connected to the top of the telescopic rod, and the bottom of the fixed cylinder is fixedly connected to the turntable.

[0012] In the present invention, the telescopic rod is convenient for extending and retracting along with the lifting and lowering of the lifting plate, and the telescopic assembly is convenient for making the lifting plate and the turntable rotate synchronously.

[0013] Furthermore, vertical plates are fixed on both sides of the bottom of the fixed plate, and one side of the vertical plates is connected to a push rod assembly. The push rod assembly includes a sleeve connected to one side of the bottom of the vertical plate, a first spring connected to one side of the inside of the sleeve, and a sliding rod connected to one side of the first spring. One side of the sliding rod is connected to an L-shaped push rod, and the L-shaped push rod cooperates with the polishing rod.

[0014] In the present invention, the first spring provides the L-shaped push rod with a contraction space and enables the L-shaped push rod to be reset, thereby facilitating pushing the polishing rod to a horizontal state.

[0015] Furthermore, the block assembly includes a block rod slidably connected to one side of the bottom of the L-shaped rod, a second spring sleeved on the top of the block rod and a lifting plate connected to the top of the block rod, and the lifting plate cooperates with the fixed plate.

[0016] In the present invention, the second spring facilitates the reset of the lifting plate and the blocking rod. When the blocking rod is reset, the lower surface of the blocking rod is located below the grinding rod shaft, thereby facilitating the restriction of the rotation of the grinding rod.

[0017] Furthermore, L-shaped push blocks are fixed on both sides of the bottom of the fixed plate, and one side of the L-shaped push block is provided with a first oblique edge;

[0018] A second oblique edge is provided on one side of the bottom of the lifting plate, and the second oblique edge matches the first oblique edge.

[0019] In the present invention, the second oblique side cooperates with the first oblique side to facilitate the lifting plate to press the L-shaped push block, thereby facilitating the lifting plate to rise.

[0020] Furthermore, the limiting device includes a moving rod slidably connected to one side of the turntable, a moving block connected to one side of the moving rod, a third spring sleeved on the other side of the moving rod and a limiting block connected to the other side of the moving rod, and the limiting block cooperates with the limiting groove body set on the bracket.

[0021] In the present invention, the third spring is used to facilitate the reset of the limit block, so that the limit block enters the limit slot, thereby facilitating the restriction of the rotation of the turntable.

[0022] Furthermore, a square column is fixed to the driving end of the rotating motor;

[0023] A square groove is provided on the top of the screw rod, and the groove body of the square groove matches the square column.

[0024] In the present invention, the square column enters the square groove to facilitate the screw rod to rotate along with the driving end of the rotating motor.

[0025] Furthermore, a square housing is fixed to the driving end of the rotating motor, and the square housing cooperates with the moving block;

[0026] An annular groove is provided on the top of the turntable, and the groove body of the annular groove matches the square shell.

[0027] In the present invention, the square shell enters the annular groove to facilitate the rotation of the turntable along with the driving end of the rotating motor.

[0028] Furthermore, a third oblique edge is provided on one side of the bottom of the square shell;

[0029] A fourth oblique edge is provided on one side of the top of the moving block, and the fourth oblique edge cooperates with the third oblique edge.

[0030] In the present invention, the fourth oblique side cooperates with the third oblique side to facilitate the square shell to squeeze the moving block, thereby facilitating the movement of the moving block.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] The present invention drives the rotating motor to descend through the pneumatic cylinder, so that the square column enters the square slot, and the rotating motor drives the screw rod to rotate, thereby raising and lowering the lifting plate, thereby rotating the arm rod, and then moving the L-shaped rod and the polishing rod to achieve adjustment of the polishing rod. When the polishing rod moves to the outermost end, the elastic force of the first spring resets the L-shaped push rod, thereby pushing the polishing rod to a horizontal state, and driving the rotating motor to descend through the pneumatic cylinder, so that the square shell enters the annular groove, and squeezes the moving block through the square shell, thereby moving the moving block, and then disengaging the limit block from the limit slot, so that the rotating motor drives the screw rod and the turntable to rotate synchronously, thereby rotating the polishing rod to achieve polishing of the mold. This device can not only adjust the position of the polishing rod according to different apertures, avoiding the need to replace polishing heads of different specifications for polishing, but also can adjust the polishing rod to a horizontal state, which is convenient for polishing the mold surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0034] Figure 2 A cross-sectional view of the present invention as a whole;

[0035] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0036] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0037] Figure 5 is a cross-sectional view of a portion of the device of the present invention;

[0038] Figure 6 A partial cross-sectional view of the present invention as a whole;

[0039] Figure 7 for Figure 6 Enlarged view of point C in the middle;

[0040] Figure 8 It is a cross-sectional view of the present invention as a whole.

[0041] In the figure: 10, bracket; 11, limit slot; 20, drive mechanism; 21, pneumatic cylinder; 22, fixing plate; 23, rotating motor; 231, square column; 232, square shell; 2321, third bevel; 30, adjustment device; 31, turntable; 32, screw rod; 33, lifting plate; 34, telescopic assembly; 341, fixing cylinder; 342, telescopic rod; 35, arm; 36, I-shaped slide; 37, L-shaped rod; 371, T-shaped slide; 372, second T-shaped slide. 38. Grinding rod; 39. Fixed plate; 391. L-shaped push block; 3911. First bevel; 392. First T-shaped slide; 40. Push rod assembly; 41. Sleeve; 42. First spring; 43. Slide rod; 44. L-shaped push rod; 50. Block assembly; 51. Block rod; 52. Second spring; 53. Lifting plate; 531. Second bevel; 60. Limiting device; 61. Moving rod; 62. Third spring; 63. Limiting block; 64. Moving block; 641. Fourth bevel. DETAILED DESCRIPTION

[0042] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0043] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention pertains. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The terms used herein and / or include any and all combinations of one or more related listed items.

[0045] For example, please refer to the attached Figure 1-8, a finishing device for a thermoforming mold includes a bracket 10, the top of the bracket 10 is connected to a driving mechanism 20, the bottom of the bracket 10 is connected to an adjusting device 30, one side of the adjusting device 30 is connected to a limiting device 60, the adjusting device 30 includes a turntable 31 rotatably connected to the bottom of the bracket 10, a screw rod 32 rotatably connected to the center of the turntable 31 and a lifting plate 33 connected to the top of the screw rod 32, the top of the screw rod 32 is connected to the driving mechanism 20, the bottom of the screw rod 32 is rotatably connected to a fixed plate 39, both sides of the fixed plate 39 are slidably connected to an L-shaped rod 37, the bottom side of the L-shaped rod 37 is rotatably connected to a polishing rod 38, the top side of the L-shaped rod 37 is slidably connected to an I-shaped slider 36, one side of the I-shaped slider 36 is rotatably connected to an arm rod 35, the top of the arm 35 is rotatably connected to the lifting plate 33, and the top of the lifting plate 33 is connected to telescopic components 34 on both sides;

[0046] One side of the bottom of the L-shaped rod 37 is connected to the stopper assembly 50, and the stopper assembly 50 cooperates with the polishing rod 38;

[0047] Both sides of the fixing plate 39 are connected to the push rod assembly 40 , and the push rod assembly 40 cooperates with the grinding rod 38 .

[0048] It should be noted that, in this embodiment, the rotation of the screw rod 32 drives the lifting plate 33 to rise and fall, thereby rotating the arm rod 35, and then moving the L-shaped rod 37 and the polishing rod 38 to achieve the adjustment of the polishing rod 38. When the polishing rod 38 moves to the outer end, the polishing rod 38 is pushed to a horizontal state by the push rod assembly 40. When the screw rod 32 and the turntable 31 rotate synchronously, the polishing of the mold is achieved.

[0049] For example, please refer to the attached Figure 8 A second T-shaped slot 372 is provided on one side of the L-shaped rod 37 , and the slot body of the second T-shaped slot 372 is slidably connected to the I-shaped slider 36 .

[0050] For example, please refer to the attached Figure 2 The driving mechanism 20 includes a pneumatic cylinder 21 connected to the top of the bracket 10, a fixed plate 22 connected to the driving end of the pneumatic cylinder 21 and a rotating motor 23 connected to the bottom of the fixed plate 22, and the driving end of the rotating motor 23 cooperates with the screw 32 and the turntable 31.

[0051] It should be noted that, in this embodiment, the pneumatic cylinder 21 facilitates the lifting and lowering of the rotary motor 23 , and the rotary motor 23 facilitates the rotation of the screw rod 32 and the turntable 31 .

[0052] For example, please refer to the attached Figure 6The telescopic assembly 34 includes a telescopic rod 342 connected to the top of the lifting plate 33 and a fixed cylinder 341 slidably connected to the top of the telescopic rod 342, and the bottom of the fixed cylinder 341 is fixedly connected to the turntable 31.

[0053] It should be noted that, in this embodiment, the telescopic rod 342 is convenient for telescoping as the lifting plate 33 is lifted or lowered, and the telescopic assembly 34 is convenient for making the lifting plate 33 and the turntable 31 rotate synchronously.

[0054] For example, please refer to the attached Figure 4 Vertical plates are fixed on both sides of the bottom of the fixed plate 39, and one side of the vertical plate is connected to a push rod assembly 40. The push rod assembly 40 includes a sleeve 41 connected to one side of the bottom of the vertical plate, a first spring 42 connected to one side of the inner side of the sleeve 41, and a sliding rod 43 connected to one side of the first spring 42. One side of the sliding rod 43 is connected to an L-shaped push rod 44, and the L-shaped push rod 44 cooperates with the grinding rod 38.

[0055] It should be noted that, in this embodiment, the elastic force of the first spring 42 provides the L-shaped push rod 44 with space for contraction, and can reset the L-shaped push rod 44, thereby pushing the polishing rod 38 to a horizontal state. When the polishing rod 38 is in a horizontal state, the lower surface of the polishing rod 38 is located below the lower surface of the L-shaped push rod 44.

[0056] For example, please refer to the attached Figure 4-5 The block assembly 50 includes a block rod 51 slidably connected to one side of the bottom of the L-shaped rod 37, a second spring 52 sleeved on the top of the block rod 51 and a lifting plate 53 connected to the top of the block rod 51, and the lifting plate 53 cooperates with the fixed plate 39.

[0057] It should be noted that, in this embodiment, the lifting plate 53 and the baffle 51 are reset by the elastic force of the second spring 52. When the baffle 51 is reset, the lower surface of the baffle 51 is located below the rotating shaft of the grinding rod 38, thereby facilitating the limitation of the rotation of the grinding rod 38.

[0058] For example, please refer to the attached Figure 7 , L-shaped push blocks 391 are fixed on both sides of the bottom of the fixed plate 39, and one side of the L-shaped push block 391 is provided with a first oblique edge 3911;

[0059] A second oblique edge 531 is provided on one side of the bottom of the lifting plate 53 , and the second oblique edge 531 matches the first oblique edge 3911 .

[0060] It should be noted that, in this embodiment, the second bevel 531 cooperates with the first bevel 3911 to facilitate the lifting plate 53 to squeeze the L-shaped push block 391, thereby causing the lifting plate 53 and the blocking rod 51 to rise, so that the blocking rod 51 removes the restriction of the grinding rod 38 and enables the grinding rod 38 to rotate.

[0061] For example, please refer to the attached Figure 5 , a first T-shaped sliding groove 392 is provided on both sides of the fixed plate 39;

[0062] T-shaped sliders 371 are fixed on both sides of the bottom of the L-shaped rod 37 , and the T-shaped sliders 371 are slidably connected to the groove body of the first T-shaped sliding groove 392 .

[0063] It should be noted that, in this embodiment, the T-shaped sliding block 371 and the first T-shaped sliding groove 392 improve the stability of the L-shaped rod 37 and avoid limiting the movement range of the L-shaped rod 37.

[0064] For example, please refer to the attached Figure 3 The limiting device 60 includes a moving rod 61 slidably connected to one side of the turntable 31, a moving block 64 connected to one side of the moving rod 61, a third spring 62 sleeved on the other side of the moving rod 61 and a limiting block 63 connected to the other side of the moving rod 61, and the limiting block 63 cooperates with the limiting groove 11 set in the bracket 10.

[0065] It should be noted that, in this embodiment, the limiting block 63 is reset by the elastic force of the third spring 62 , so that the limiting block 63 enters the limiting groove 11 , thereby limiting the rotation of the turntable 31 .

[0066] For example, please refer to the attached Figure 2 , a square column 231 is fixed to the driving end of the rotating motor 23;

[0067] A square groove is provided on the top of the screw rod 32 , and the groove body of the square groove cooperates with the square column 231 .

[0068] It should be noted that, in this embodiment, the square column 231 enters the square groove to facilitate the screw rod 32 to rotate along with the driving end of the rotating motor 23 .

[0069] For example, please refer to the attached Figure 2 , the driving end of the rotating motor 23 is fixed with a square shell 232, and the square shell 232 cooperates with the moving block 64;

[0070] An annular groove is provided on the top of the turntable 31 , and the groove body of the annular groove matches the square shell 232 .

[0071] It should be noted that, in this embodiment, the square shell 232 enters the annular groove to facilitate the rotation of the turntable 31 along with the driving end of the rotating motor 23 .

[0072] For example, please refer to the attached Figure 3 , a third oblique edge 2321 is provided on one side of the bottom of the square shell 232;

[0073] A fourth oblique edge 641 is provided on one side of the top of the moving block 64 , and the fourth oblique edge 641 matches the third oblique edge 2321 .

[0074] It should be noted that, in this embodiment, the fourth oblique side 641 cooperates with the third oblique side 2321 to squeeze the moving block 64 when the square shell 232 descends, thereby moving the moving block 64 and further separating the limiting block 63 from the limiting groove 11.

[0075] The specific operation mode of the present invention is as follows:

[0076] When the position of the grinding rod 38 needs to be adjusted, the pneumatic cylinder 21 drives the rotary motor 23 to descend, so that the square column 231 enters the square groove, and then the rotary motor 23 drives the screw rod 32 to rotate, thereby raising and lowering the lifting plate 33, thereby rotating the arm 35, and then moving the L-shaped rod 37 and the grinding rod 38 to achieve the adjustment of the grinding rod 38;

[0077] When the grinding rod 38 needs to be adjusted to a horizontal state, the grinding rod 38 is moved to the outermost end. During the movement, the L-shaped push rod 44 first squeezes the grinding rod 38 to shrink the L-shaped push rod 44, and then the lifting plate 53 squeezes the L-shaped push block 391, thereby raising the lifting plate 53 and the blocking rod 51, so that the blocking rod 51 removes the restriction of the grinding rod 38, allowing the grinding rod 38 to rotate. Then, the elastic force of the first spring 42 resets the L-shaped push rod 44, thereby pushing the grinding rod 38 to a horizontal state.

[0078] When the grinding rod 38 needs to be adjusted to a vertical state, the grinding rod 38 is moved inward, and gravity keeps the grinding rod 38 in a vertical state. At the same time, the elastic force of the second spring 52 resets the lifting plate 53 and the blocking rod 51, thereby limiting the rotation of the grinding rod 38.

[0079] When polishing is required, the pneumatic cylinder 21 drives the rotating motor 23 to descend, so that the square shell 232 enters the annular groove, and the square shell 232 squeezes the moving block 64, so that the moving block 64 moves, and then the limit block 63 is disengaged from the limit groove 11, and the rotating motor 23 drives the screw rod 32 and the turntable 31 to rotate synchronously, so that the polishing rod 38 rotates to realize the polishing of the mold.

[0080] The above description of the present invention is exemplified in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A finishing device for a thermoforming mold, comprising a bracket (10), characterized in that: The top of the support (10) is connected to a driving mechanism (20), the bottom of the support (10) is connected to an adjusting device (30), one side of the adjusting device (30) is connected to a limiting device (60), the adjusting device (30) comprises a rotating disk (31) rotatably connected to the bottom of the support (10), a screw rod (32) rotatably connected to the center of the rotating disk (31) and a lifting disk (33) penetratingly connected to the top of the screw rod (32), the top of the screw rod (32) is connected to the driving mechanism (20), ), the bottom of the screw rod (32) is rotatably connected to a fixed plate (39), both sides of the fixed plate (39) are slidably connected to an L-shaped rod (37), one side of the bottom of the L-shaped rod (37) is rotatably connected to a grinding rod (38), one side of the top of the L-shaped rod (37) is slidably connected to an I-shaped slider (36), one side of the I-shaped slider (36) is rotatably connected to an arm rod (35), the top of the arm rod (35) is rotatably connected to a lifting plate (33), and both sides of the top of the lifting plate (33) are connected to telescopic components (34); One side of the bottom of the L-shaped rod (37) is connected to a stopper assembly (50), and the stopper assembly (50) cooperates with the grinding rod (38); Both sides of the fixing plate (39) are connected to push rod assemblies (40), and the push rod assemblies (40) are matched with the grinding rod (38).

2. A finishing device for a thermoforming mold according to claim 1, characterized in that: The driving mechanism (20) comprises a pneumatic cylinder (21) connected to the top of the bracket (10), a fixed plate (22) connected to the driving end of the pneumatic cylinder (21), and a rotating motor (23) connected to the bottom of the fixed plate (22), wherein the driving end of the rotating motor (23) cooperates with a screw rod (32) and a rotating disk (31).

3. A finishing device for a thermoforming mold according to claim 1, characterized in that: The telescopic assembly (34) comprises a telescopic rod (342) connected to the top of the lifting plate (33) and a fixed cylinder (341) slidably connected to the top of the telescopic rod (342), and the bottom of the fixed cylinder (341) is fixedly connected to the rotating plate (31).

4. A finishing device for a thermoforming mold according to claim 1, characterized in that: Vertical plates are fixed on both sides of the bottom of the fixed plate (39), one side of the vertical plates is connected to a push rod assembly (40), the push rod assembly (40) comprises a sleeve (41) connected to one side of the bottom of the vertical plate, a first spring (42) connected to one side of the sleeve (41) and a slide rod (43) connected to one side of the first spring (42), one side of the slide rod (43) is connected to an L-shaped push rod (44), and the L-shaped push rod (44) cooperates with the grinding rod (38).

5. The finishing device for a thermoforming mold according to claim 1, characterized in that: The block assembly (50) comprises a block rod (51) slidably connected to one side of the bottom of the L-shaped rod (37), a second spring (52) sleeved on the top of the block rod (51), and a lifting plate (53) connected to the top of the block rod (51), wherein the lifting plate (53) cooperates with the fixed plate (39).

6. A finishing device for a thermoforming mold according to claim 5, characterized in that: L-shaped push blocks (391) are fixed on both sides of the bottom of the fixed plate (39), and one side of the L-shaped push block (391) is provided with a first bevel (3911); A second oblique edge (531) is provided on one side of the bottom of the lifting plate (53), and the second oblique edge (531) matches the first oblique edge (3911).

7. A finishing device for a thermoforming mold according to claim 2, characterized in that: The limiting device (60) comprises a moving rod (61) slidably connected to one side of the rotating disk (31), a moving block (64) connected to one side of the moving rod (61), a third spring (62) sleeved on the other side of the moving rod (61) and a limiting block (63) connected to the other side of the moving rod (61), wherein the limiting block (63) cooperates with a limiting groove (11) provided on the bracket (10).

8. A finishing device for a thermoforming mold according to claim 2, characterized in that: A square column (231) is fixed to the driving end of the rotating motor (23); A square groove is provided on the top of the screw rod (32), and the groove body of the square groove matches the square column (231).

9. A finishing device for a thermoforming mold according to claim 7, characterized in that: A square shell (232) is fixed to the driving end of the rotating motor (23), and the square shell (232) cooperates with the moving block (64); The top of the rotating disk (31) is provided with an annular groove, and the groove body of the annular groove matches the square shell (232).

10. A finishing device for a thermoforming mold according to claim 9, characterized in that: A third oblique edge (2321) is provided on one side of the bottom of the square shell (232); A fourth oblique edge (641) is provided on one side of the top of the moving block (64), and the fourth oblique edge (641) matches the third oblique edge (2321).

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