Cup cover thread removing mold structure

Abstract

The invention relates to the technical field of cup lid molds, in particular to a cup lid thread demolding mold structure which comprises a mold base, a set of positioning columns are symmetrically arranged in the mold base, the positioning columns are sleeved with thread sleeves, a driving assembly is arranged in the mold base, and a positioning groove allowing the thread sleeves to penetrate through is formed in the mold base. A stripping ring is arranged on the outer wall of the threaded sleeve and connected with the threaded sleeve, a forming groove for forming the end face of the cup cover is formed between the stripping ring and the threaded sleeve, and the inner side of the stripping ring is designed to be a positioning edge so that the driving assembly can drive the stripping ring and the threaded sleeve to be screwed in at the same time. A pressing plate is fixedly arranged on the inner wall of the positioning groove to prevent screw-in overcutting, and a supporting block is further arranged on the die holder in a sliding mode to prevent the stripping ring and the threaded sleeve from retreating in the production process. The thread sleeve and the stripping ring are designed into a whole, so that the effects of reducing burrs and flaws during machining and improving the product quality are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of cup cover moulds, and in particular to a cup cover thread-removing mould structure. Background Art

[0002] At present, a water cup is a tool specially used for drinking water in daily life. A common water cup includes a cup cover and a cup body. The cup cover and the cup body are connected to each other by threads, and a mold is used to process the cup cover during the production process.

[0003] A thread stripping structure is designed in the related art, referring to Figure 5 It includes a mold base 1 and a screw sleeve 21 which is lifted and lowered on the mold base 1. A threaded section is arranged on the side wall of the screw sleeve 21. A stripping ring 22 is also fixedly arranged on the mold base 1. An annular forming groove 221 is arranged on the inner wall and the end of the stripping ring 22. During processing, the screw sleeve 21 rises and passes through the stripping ring 22. The outer wall of the screw sleeve 21 fits tightly with the inner wall of the stripping ring 22. The cup cover is processed and formed at the end of the screw sleeve 21, and the forming groove 221 can form a flat end face of the cup cover. After processing, the screw sleeve 21 rotates and descends away from the stripping ring 22 and the formed cup cover.

[0004] In the process of implementing this application, it was found that there are at least the following problems in this technology: the screw sleeve 21 is repeatedly lifted and lowered in the stripping ring 22, and there is constant friction between the screw sleeve 21 and the stripping ring 22. After long-term use, burrs will appear at the notch of the forming groove 221, which will lead to defects on the end face of the cup cover after processing, affecting the product quality. Summary of the invention

[0005] In order to reduce the phenomenon of burr defects during processing and improve product quality, the present application provides a cup lid thread removal mold structure.

[0006] The present application provides a cup cover thread removal mold structure that adopts the following technical solution: A cup cover thread stripping mold structure comprises a mold base, a group of positioning columns are symmetrically fixedly arranged in the mold base, screw sleeves are sleeved on the positioning columns, a driving assembly is arranged in the mold base, and the driving assembly is used to simultaneously drive the screw sleeve to screw in on the positioning columns; a positioning groove for the screw sleeve to pass through is opened on the mold base, a stripping ring is arranged on the outer wall of the screw sleeve, the stripping ring and the screw sleeve are connected to each other, a forming groove for forming the end face of the cup cover is arranged between the stripping ring and the screw sleeve, a pressure plate is fixedly arranged on the inner wall of the positioning groove, and the outer wall of the stripping ring can be abutted against the inner wall of the pressure plate; a support block is also slidably arranged on the mold base, and the support block can be abutted against the bottom end of the stripping ring.

[0007] By adopting the above technical scheme, when the cup cover is processed and formed by using the mold, the driving component first drives the screw sleeve to rotate on the positioning column toward the top of the mold base, so that the screw sleeve passes through the positioning groove, and when the screw sleeve moves, it drives the stripping ring to rise together until the stripping ring abuts against the pressure plate, and the driving component stops working, and then the support block slides and abuts against the bottom wall of the stripping ring. At this time, the mold above the mold base fits the mold base to process the top of the screw sleeve, and the forming groove on the stripping ring can form the end face of the cup cover; after the cup cover is processed and formed, the support block slides away from the stripping ring, and then the driving component drives the screw sleeve to rotate into the mold base, and the screw sleeve drives the stripping ring to descend together away from the pressure plate, connecting the stripping ring and the screw sleeve to each other, avoiding direct friction between the stripping ring and the screw sleeve, thereby reducing the wear of the inner wall of the forming groove on the stripping ring, thereby reducing the phenomenon of burr defects on the cup cover during processing, which is beneficial to improving the quality of the product.

[0008] Preferably, a clamping block is integrally provided on the outer wall of the screw sleeve, and a clamping groove for inserting and abutting the clamping block is opened at the bottom end of the stripping ring. A mounting ring is also sleeved on the outer wall of the screw sleeve, and the clamping block can abut against the top of the mounting ring. A connecting piece is provided between the mounting ring and the stripping ring, and the connecting piece is used to fix the stripping ring and the mounting ring to each other.

[0009] By adopting the above technical scheme, when connecting the stripping ring and the screw sleeve, the stripping ring and the mounting ring are sleeved on the screw sleeve, and the clamping block is inserted into the clamping groove, and then the stripping ring and the mounting ring are connected and fixed by using the connecting piece. One end of the clamping block can be abutted against the inner wall of the clamping groove, and the other end of the clamping block can be abutted against the mounting ring, so that the stripping ring is fixed on the outer wall of the screw sleeve, and the installation between the stripping ring and the screw sleeve is realized. At the same time, the stripping ring and the screw sleeve can be disassembled by using the connecting piece, which is convenient for replacing different stripping rings to meet the end surface processing requirements of different shapes, which is beneficial to processing, exhaust and assembly of products.

[0010] Preferably, the connecting member includes a plurality of connecting bolts, and the connecting bolts penetrate through the mounting ring and the stripping ring for threaded connection.

[0011] By adopting the above technical solution, after the clamping block is inserted into the clamping slot, a plurality of connecting bolts are used to penetrate the threaded connection between the mounting ring and the stripping ring, so that the stripping ring can be fixed on the mounting ring, with high connection strength and good stability.

[0012] Preferably, the connecting piece comprises a connecting rod, a locking rod, a linkage rod, a linkage block, a reset block and a reset spring, the connecting rod is symmetrically fixedly arranged on the top wall of the mounting ring, a group of the connecting rods are symmetrically fixedly arranged on the top wall of the mounting ring, the bottom end of the stripping ring is provided with a connecting groove for the connecting rod to be inserted, and the connecting rod and the connecting groove are adapted to each other; the inner wall of the connecting groove is connected to a locking groove, the locking rod is slidably arranged in the locking groove, and a locking hole for the locking rod to be inserted and abutted is arranged on the connecting rod; the top of the stripping ring is provided with a linkage groove which is connected to the locking groove, the linkage rod is slidably arranged in the linkage groove, the linkage block is arranged on the side wall of the linkage rod, the surface of the locking rod is inclinedly provided with an abutting groove, and the linkage block is slidably arranged in the abutting groove; the reset block is fixedly arranged on the side wall of the linkage rod, the inner wall of the linkage groove is provided with a reset groove, the reset block is slidably arranged in the reset groove, the reset spring is arranged in the reset groove and abuts against the reset block, and the reset spring drives the end wall of the linkage rod to be flush with the surface of the stripping ring.

[0013] Preferably, a guide surface is obliquely provided at one end of the locking rod facing the connecting groove, and an arcuate surface is provided at the top end of the connecting rod, and the arcuate surface can abut against the guide surface.

[0014] By adopting the above technical scheme, when installing different stripping rings, first set the installation ring sleeve on the screw sleeve, and use the support block to support the bottom wall of the installation ring, and then set the stripping ring sleeve on the screw sleeve, so that the connecting rod is inserted into the connecting groove, the connecting rod slides in the connecting groove, the arc surface and the guide surface abut against each other, driving the locking rod away from the connecting groove, and the locking rod is completely retracted into the locking groove. When the locking rod slides, the inner wall of the abutment groove abuts against the linkage block. Due to the inclination of the abutment groove, when the linkage block slides in the abutment groove, the linkage rod continues to descend in the linkage groove; when the locking rod and the locking hole are flush with each other, the reset spring and the reset block When the stripping ring needs to be removed, the two linkage rods are pressed simultaneously with the tool. When the linkage rod descends, the abutting groove and the linkage block abut against each other, and the linkage block slides in the abutting groove, driving the locking rod to slide in the locking groove away from the connecting groove, and quickly disengaging the locking rod from the locking hole, thereby realizing the separation and disassembly between the stripping ring and the mounting ring. The operation is convenient and quick.

[0015] Preferably, the drive assembly includes a motor, a main gear, a negative gear and a nut sleeve, the motor is arranged on the mold base, the drive shaft of the motor is connected to the main gear, the negative gear is connected to the outer wall of the screw sleeve, the negative gear and the screw sleeve are coaxially arranged, the main gear is meshed with two negative gears at the same time, the nut sleeve is fixedly arranged in the mold base, the screw sleeve passes through the nut sleeve, and the outer wall of the screw sleeve and the inner wall of the nut sleeve are threadedly connected.

[0016] By adopting the above technical solution, before and after processing, the main gear is driven to rotate by the motor, and the main gear is simultaneously against the two negative gears, driving the negative gears to rotate, and then driving the screw sleeve to rotate. Due to the threaded connection between the outer wall of the screw sleeve and the inner wall of the nut sleeve, the two screw sleeves are controlled to be screwed in along the vertical direction at the same time. The screwed-in screw sleeve is convenient for demoulding from the formed cup cover, and the control is convenient and quick.

[0017] Preferably, a cylinder is fixedly disposed on the mold base, and a piston rod of the cylinder is interconnected with a plurality of support blocks.

[0018] By adopting the above technical solution, the cylinder drives the support block to quickly move away from or approach the bottom of the stripping ring.

[0019] Preferably, a buffer seat is provided below the mold base, a group of buffer rods are symmetrically fixed on the buffer seat, the mold base is arranged on the buffer rods, a buffer spring is sleeved on the buffer rods, one end of the buffer spring abuts against the top end of the buffer seat, and the other end of the buffer spring abuts against the bottom end of the mold base.

[0020] By adopting the above technical solution, the mold base will be subjected to pressure during processing. The buffer spring is used to resist the bottom end of the mold base, and the mold base slides on the buffer rod. The buffer spring and the buffer rod can buffer the force applied to the mold base, which is beneficial to extending the service life of the mold.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting the mold base, positioning column, screw sleeve, driving component, positioning groove, stripping ring, positioning groove, pressing plate and support block, when the mold is used to process the cup cover, the driving component first drives the screw sleeve to pass through the positioning groove, and when the screw sleeve moves, it drives the stripping ring to rise together, and the support block slides and abuts against the bottom wall of the stripping ring. At this time, the mold above the mold base fits the mold base to process the top of the screw sleeve, and the forming groove on the stripping ring can form the end face of the cup cover. After the cup cover is processed and formed, the support block slides away from the stripping ring, and then the driving component drives the screw sleeve to rotate into the mold base, and the screw sleeve drives the stripping ring to descend together away from the pressing plate, connecting the stripping ring and the screw sleeve to avoid direct friction between the stripping ring and the screw sleeve, thereby reducing the wear of the inner wall of the forming groove on the stripping ring, thereby reducing the phenomenon of burr defects on the cup cover during processing, which is beneficial to improving the quality of the product; 2. By setting a clamping block, a clamping groove, a mounting ring and a connecting piece, when connecting the stripping ring and the screw sleeve, the stripping ring and the mounting ring are sleeved on the screw sleeve, and the clamping block is inserted into the clamping groove, and then the stripping ring and the mounting ring are connected and fixed by the connecting piece, one end of the clamping block can be abutted against the inner wall of the clamping groove, and the other end of the clamping block can be abutted against the mounting ring, so that the stripping ring is fixed on the outer wall of the screw sleeve, and the installation between the stripping ring and the screw sleeve is realized. At the same time, the stripping ring and the screw sleeve can be disassembled by using the connecting piece, so that different stripping rings can be replaced conveniently to meet the end surface processing requirements of different shapes; 3. By setting a motor, a main gear, a negative gear and a nut sleeve, before and after processing, the motor is used to drive the main gear to rotate, and the main gear is simultaneously against the two negative gears, driving the negative gear to rotate, and then driving the screw sleeve to rotate. Since the outer wall of the screw sleeve and the inner wall of the nut sleeve are threadedly connected, the two screw sleeves are controlled to be screwed in along the vertical direction at the same time. The screwed-in screw sleeve is convenient for demoulding from the formed cup cover, and the control is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of a cup lid thread removal mold structure provided in Example 1 of the present application.

[0023] Figure 2 It is a cross-sectional view of a cup lid thread removal mold structure provided in Example 1 of the present application.

[0024] Figure 3 yes Figure 2 Enlarged view of part A.

[0025] Figure 4 It is a schematic diagram used to illustrate the connection relationship between the stripping ring and the mounting ring in Example 2 of the present application.

[0026] Figure 5 It is a partial schematic diagram used to embody a thread removal structure in the related technology.

[0027] Explanation of the accompanying drawings: 1. mold base; 2. positioning column; 21. screw sleeve; 22. stripping ring; 221. molding groove; 3. positioning groove; 31. pressure plate; 4. support block; 41. cylinder; 5. clamping block; 51. clamping groove; 52. mounting ring; 61. connecting bolt; 71. connecting rod; 711. connecting groove; 712. arc surface; 72. locking rod; 721. locking groove; 722. locking hole; 723. abutment groove; 724. guide surface; 73. linkage rod; 731. linkage groove; 74. linkage block; 75. reset block; 751. reset groove; 76. reset spring; 81. motor; 82. main gear; 83. negative gear; 84. nut sleeve; 9. buffer seat; 91. buffer rod; 92. buffer spring. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-4 This application is described in further detail.

[0029] Embodiment 1 of the present application discloses a cup cover thread removal mold structure. Figures 1 to 3 The mold base 1 includes a set of positioning columns 2 symmetrically fixed by bolts in the mold base 1, and the length direction of the positioning columns 2 is arranged along the height direction of the mold base 1. A screw sleeve 21 is sleeved on the positioning column 2, and the screw sleeve 21 can slide or rotate on the positioning column 2. A driving component is arranged in the mold base 1 to drive the screw sleeve 21 to screw into the positioning column 2, and a threaded section for processing into the inner thread of the cup cover is arranged on the outer wall and at the top of the screw sleeve 21.

[0030] Reference Figures 1 to 3 The mold base 1 is provided with a positioning groove 3 for the threaded sleeve 21 to pass through, and a pressing plate 31 is fixedly provided on the inner wall of the positioning groove 3 by bolts. A stripping ring 22 is provided on the outer wall of the threaded sleeve 21, and the top of the stripping ring 22 is flattened. The stripping ring 22 and the threaded sleeve 21 are connected to each other, and a forming groove 221 for processing into the end face of the cup cover is provided between the stripping ring 22 and the threaded sleeve 21, and the outer wall of the stripping ring 22 can be against the inner wall of the pressing plate 31. A cylinder 41 is fixedly provided on the mold base 1 by bolts, and the piston rod of the cylinder 41 is connected to a plurality of support blocks 4, and the support blocks 4 can be inserted into both sides of the threaded sleeve 21. When the cup cover is processed and formed by the mold, the driving component first drives the screw sleeve 21 to be screwed into the top of the mold base 1 on the positioning column 2, so that the screw sleeve 21 passes through the positioning groove 3. When the screw sleeve 21 moves, it drives the stripping ring 22 to rise together until the stripping ring 22 abuts against the inner wall of the pressure plate 31. The driving component stops working, and then the cylinder 41 drives the support block 4 to slide and abut against the bottom end of the stripping ring 22. The stripping ring 22 is supported by the support block 4. At this time, the mold above the mold base 1 fits with the mold base 1 to process the top of the screw sleeve 21. The threaded section on the screw sleeve 21 can form an internal thread on the inner wall of the cup cover, and the molding groove 221 on the stripping ring 22 can form the end face of the cup cover. After the cup cover is processed and formed, the cylinder 41 drives the support block 4 to slide away from the stripping ring 22, and then the driving assembly drives the screw sleeve 21 to rotate into the mold base 1, and the screw sleeve 21 drives the stripping ring 22 to descend together away from the pressure plate 31, connecting the stripping ring 22 and the screw sleeve 21 to avoid direct friction between the stripping ring 22 and the screw sleeve 21, thereby reducing the wear of the inner wall of the forming groove 221 on the stripping ring 22.

[0031] Reference Figure 2The driving assembly includes a motor 81, a main gear 82, a negative gear 83 and a nut sleeve 84. The motor 81 is fixedly arranged on the mold base 1. The driving shaft of the motor 81 is connected to the main gear 82. The motor 81 is used to drive the main gear 82 to rotate. The negative gear 83 is connected to the outer wall of the screw sleeve 21. The negative gear 83 and the screw sleeve 21 are coaxially arranged. The main gear 82 is meshed with the two negative gears 83 at the same time. The nut sleeve 84 is fixedly arranged in the mold base 1. The screw sleeve 21 passes through the nut sleeve 84. The outer wall of the screw sleeve 21 and the inner wall of the nut sleeve 84 are threadedly connected. Before and after processing, the main gear 82 is driven to rotate by the motor 81. The main gear 82 is against the two negative gears 83 at the same time, driving the negative gear 83 and the screw sleeve 21 to rotate. The screw sleeve 21 is guided by the nut sleeve 84 to rotate forward, thereby controlling the two screw sleeves 21 to rotate forward in the vertical direction at the same time. The screwed screw sleeve 21 is convenient for demoulding with the cup cover after molding, and the control is convenient and quick.

[0032] Reference Figure 3 The outer wall of the screw sleeve 21 is provided with a block 5, and the bottom end of the stripping ring 22 is provided with a slot 51 for the block 5 to be inserted and abutted, and the block 5 and the slot 51 are adapted to each other. The outer wall of the screw sleeve 21 is also provided with a mounting ring 52, and the block 5 can abut against the top of the mounting ring 52. A connecting piece is provided between the mounting ring 52 and the stripping ring 22. In the embodiment of the present application, the connecting piece includes a plurality of connecting bolts 61, and the connecting bolts 61 penetrate through the mounting ring 52 and are threadedly connected with the stripping ring 22. When connecting the stripping ring 22 and the screw sleeve 21, the stripping ring 22 and the mounting ring 52 are sleeved on the screw sleeve 21, and the clamping block 5 is inserted into the clamping groove 51, and then a plurality of connecting bolts 61 are used to penetrate the mounting ring 52 and the stripping ring 22 for threaded connection, so that the stripping ring 22 can be fixed on the mounting ring 52, one end of the clamping block 5 can be abutted against the inner wall of the clamping groove 51, and the other end of the clamping block 5 can be abutted against the mounting ring 52, so that the stripping ring 22 is fixed on the outer wall of the screw sleeve 21, and the installation between the stripping ring 22 and the screw sleeve 21 is realized. At the same time, the stripping ring 22 and the screw sleeve 21 can be disassembled by using the connecting piece, so that different stripping rings 22 can be replaced conveniently to meet the end surface processing requirements of different shapes.

[0033] Reference Figure 2 A buffer seat 9 is provided below the die base 1, and a group of buffer rods 91 are symmetrically fixed on the buffer seat 9. The length direction of the buffer rods 91 is provided in the vertical direction. The die base 1 is provided on the buffer rods 91, and a buffer spring 92 is sleeved on the buffer rods 91. One end of the buffer spring 92 abuts against the top of the buffer seat 9, and the other end of the buffer spring 92 abuts against the bottom of the die base 1. During processing, the die base 1 will be subjected to pressure. The die base 1 slides on the buffer rods 91 by abutting against the bottom of the die base 1 with the buffer spring 92. The buffer spring 92 and the buffer rods 91 can buffer the force applied to the die base 1, which is beneficial to prolonging the service life of the die.

[0034] The implementation principle of a cup cover thread removal mold structure in Example 1 of the present application is as follows: when the cup cover is processed and formed by the mold, the motor 81 drives the main gear 82 to counteract the negative gear 83, so that the screw sleeve 21 rotates, and the screw sleeve 21 is guided by the nut sleeve 84 and then screwed into the positioning column 2. The threaded section on the screw sleeve 21 can form an internal thread on the inner wall of the cup cover, and the forming groove 221 on the stripping ring 22 can form the end face of the cup cover. During the processing, the screw sleeve 21 drives the stripping ring 22 to rise or fall together, and connects the stripping ring 22 and the screw sleeve 21 to each other, avoiding direct friction between the stripping ring 22 and the screw sleeve 21, thereby reducing the wear of the inner wall of the forming groove 221 on the stripping ring 22, thereby reducing the phenomenon of burr defects on the cup cover during processing, which is beneficial to improving the quality of the product.

[0035] Embodiment 2 of the present application discloses a cup cover thread removal mold structure, which is different from Embodiment 1 in that: Reference Figure 4The connecting member includes a connecting rod 71, a locking rod 72, a linkage rod 73, a linkage block 74, a reset block 75 and a reset spring 76. A group of connecting rods 71 ​​are symmetrically fixed on the top wall of the mounting ring 52. The length direction of the connecting rod 71 is perpendicular to the surface of the mounting ring 52. A connecting groove 711 for inserting the connecting rod 71 is provided at the bottom of the stripping ring 22. The connecting rod 71 and the connecting groove 711 are adapted to each other. A locking groove 721 is provided on the inner wall of the connecting groove 711. The length direction of the locking groove 721 is provided in the horizontal direction. The locking rod 72 is slidably provided in the locking groove 721. A locking hole 722 for inserting and abutting the locking rod 72 is provided on the connecting rod 71. A guide surface 724 is provided obliquely at one end of the locking rod 72 facing the connecting groove 711. An arc surface 712 is provided at the top of the connecting rod 71. The arc surface 712 can abut against the guide surface 724. The top of the stripping ring 22 is provided with a linkage groove 731 which is interconnected with the locking groove 721. The length direction of the linkage groove 731 is arranged along the height direction of the stripping ring 22. The linkage rod 73 is slidably arranged in the linkage groove 731. The linkage block 74 is integrally arranged on the side wall of the linkage rod 73. The surface of the locking rod 72 is inclinedly provided with an abutment groove 723. The linkage block 74 is slidably arranged in the abutment groove 723. The reset block 75 is integrally arranged on the side wall of the linkage rod 73. The inner wall of the linkage groove 731 is provided with a reset groove 751 along its length direction. The reset block 75 is slidably arranged in the reset groove 751. The reset spring 76 is arranged in the reset groove 751 and abuts against the reset block 75.When installing different stripping rings 22, first sleeve the mounting ring 52 on the screw sleeve 21, and use the support block 4 to support the bottom wall of the mounting ring 52, then sleeve the stripping ring 22 on the screw sleeve 21, so that the connecting rod 71 is inserted into the connecting groove 711, the connecting rod 71 slides in the connecting groove 711, the arc surface 712 abuts against the guide surface 724, driving the locking rod 72 away from the connecting groove 711, and the locking rod 72 is completely retracted into the locking groove 721. When the locking rod 72 slides, the inner wall of the abutment groove 723 abuts against the linkage block 74. Since the abutment groove 723 is inclined, when the linkage block 74 slides in the abutment groove 723, the linkage rod 73 continuously descends in the linkage groove 731; when the locking rod 72 and the locking hole 722 are flush with each other, the return spring 76 abuts against the return block 75 When locking sill 752 is in the action state of being withheld from the latching member 72 by pressing the latch bolt 722 and the latch bolt 78 is in the action state of being withheld from the latching member 72 by pressing the latch bolt 782;

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cup cover thread removal mold structure, comprising a mold base (1), characterized in that: A group of positioning columns (2) are symmetrically fixedly arranged in the mold base (1), and a screw sleeve (21) is sleeved on the positioning columns (2). A driving component is arranged in the mold base (1), and the driving component is used to simultaneously drive the screw sleeve (21) to screw into the positioning columns (2); a positioning groove (3) for the screw sleeve (21) to pass through is opened on the mold base (1), and a stripping ring (22) is arranged on the outer wall of the screw sleeve (21), and the stripping ring (22) and the screw sleeve (21) are connected to each other. A forming groove (221) for forming the end face of the cup cover is arranged between the stripping ring (22) and the screw sleeve (21), and a pressing plate (31) is fixedly arranged on the inner wall of the positioning groove (3), and the outer wall of the stripping ring (22) can be abutted against the inner wall of the pressing plate (31); a supporting block (4) is also slidably arranged on the mold base (1), and the supporting block (4) can be abutted against the bottom end of the stripping ring (22).

2. A cup cover thread removal mold structure according to claim 1, characterized in that: A clamping block (5) is integrally arranged on the outer wall of the screw sleeve (21); a clamping groove (51) for inserting and abutting the clamping block (5) is provided at the bottom end of the stripping ring (22); a mounting ring (52) is also sleeved on the outer wall of the screw sleeve (21); the clamping block (5) can abut against the top of the mounting ring (52); a connecting piece is arranged between the mounting ring (52) and the stripping ring (22); the connecting piece is used to fix the stripping ring (22) and the mounting ring (52) to each other.

3. A cup cover thread removal mold structure according to claim 2, characterized in that: The connecting member comprises a plurality of connecting bolts (61), and the connecting bolts (61) penetrate through the mounting ring (52) and are threadedly connected with the stripping ring (22).

4. The cup cover thread removal mold structure according to claim 2, characterized in that: The connecting member comprises a connecting rod (71), a locking rod (72), a linkage rod (73), a linkage block (74), a reset block (75) and a reset spring (76); a group of connecting rods (71) are symmetrically fixedly arranged on the top wall of the mounting ring (52); a connecting groove (711) for inserting the connecting rod (71) is provided at the bottom end of the stripping ring (22); the connecting rod (71) and the connecting groove (711) are adapted to each other; a locking groove (721) is provided on the inner wall of the connecting groove (711); the locking rod (72) is slidably arranged in the locking groove (721); a locking hole (722) for inserting and abutting the locking rod (72) is provided on the connecting rod (71); a locking hole (722) for inserting and abutting the locking rod (72) is provided at the top end of the stripping ring (22) The linkage grooves (731) are interconnected, the linkage rod (73) is slidably arranged in the linkage groove (731), the linkage block (74) is arranged on the side wall of the linkage rod (73), the surface of the locking rod (72) is inclinedly provided with an abutment groove (723), and the linkage block (74) is slidably arranged in the abutment groove (723); the reset block (75) is fixedly arranged on the side wall of the linkage rod (73), the inner wall of the linkage groove (731) is provided with a reset groove (751), the reset block (75) is slidably arranged in the reset groove (751), the reset spring (76) is arranged in the reset groove (751) and abuts against the reset block (75), and the reset spring (76) drives the end wall of the linkage rod (73) to be flush with the surface of the stripping ring (22).

5. The cup cover thread removal mold structure according to claim 4, characterized in that: A guide surface (724) is obliquely arranged at one end of the locking rod (72) facing the connecting groove (711), and a curved surface (712) is arranged at the top end of the connecting rod (71), and the curved surface (712) can abut against the guide surface (724).

6. The cup cover thread removal mold structure according to claim 1, characterized in that: The driving assembly comprises a motor (81), a main gear (82), a negative gear (83) and a nut sleeve (84); the motor (81) is arranged on the mold base (1); the driving shaft of the motor (81) is connected to the main gear (82); the negative gear (83) is connected to the outer wall of the screw sleeve (21); the negative gear (83) and the screw sleeve (21) are coaxially arranged; the main gear (82) is meshed with the two negative gears (83) at the same time; the nut sleeve (84) is fixedly arranged in the mold base (1); the screw sleeve (21) passes through the nut sleeve (84); the outer wall of the screw sleeve (21) and the inner wall of the nut sleeve (84) are threadedly connected.

7. The cup cover thread removal mold structure according to claim 1, characterized in that: A cylinder (41) is fixedly arranged on the mold base (1), and a piston rod of the cylinder (41) is mutually connected with a plurality of support blocks (4).

8. The cup cover thread removal mold structure according to claim 1, characterized in that: A buffer seat (9) is arranged below the mold base (1), a group of buffer rods (91) are symmetrically fixedly arranged on the buffer seat (9), the mold base (1) is arranged on the buffer rods (91), a buffer spring (92) is sleeved on the buffer rods (91), one end of the buffer spring (92) abuts against the top end of the buffer seat (9), and the other end of the buffer spring (92) abuts against the bottom end of the mold base (1).

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