Automatic forming device for teflon adhesive tape production
By introducing automated molding devices into Teflon tape production equipment, including casting die head, heating device, back cold roller, peel roller and cooling block, the problems of insufficient cooling of the rubber roller surface and unstable membrane separation angle are solved. Full cooling and shaping of the film is achieved, the film quality is improved and the scrap rate is reduced.
Patent Information
- Application Number
- CN202411343151.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2024-12-31
AI Technical Summary
In the existing Teflon tape production equipment, the surface of the rubber roller is insufficiently cooled and the membrane separation angle is unstable, resulting in poor quality of the membrane during cooling and setting, and prone to molecular chain breakage and scrapping.
An automated forming device is designed, including a casting die head, heating device, back-cooling roller, peeling roller, cooling block and angle adjustment device, through infrared heating, back-cooling roller cooling, peeling roller angle adjustment and cooling block cooling block, Ensure sufficient cooling and shaping of the film during molding.
It effectively improves the overall quality of the film, reduces the scrap rate, ensures the stability and cooling efficiency of the film during the molding process, and prevents excessive tension caused by excessive wrapping angle.
Smart Images
Figure CN119217619A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of insulating film tape production equipment, and in particular to an automatic forming device for producing Teflon tape. Background Art
[0002] Insulating film tapes are often used for insulation in electronic components, and Teflon tape is one of them. The production process of insulating film tapes is to prepare glue, customize film, apply glue on the film through a coating machine to form a mother roll, and finally, cut it through a tube cutter and a slitter to form insulating film tapes that meet certain specifications. The film is a very critical part of the insulating film tape, which mainly plays the role of insulation, so the production of the film is particularly important.
[0003] The main methods of film formation include dipping method (aluminum foil gluing method), casting method, casting uniaxial stretching method, biaxial stretching method, deposition method, and spraying method. Casting method: dissolve the raw materials in an organic solvent to form a viscous solution, and cast it on a flat and uniform rotating smooth support to form a film. It has good uniformity, a smooth and clean surface, and good performance. This method is used for films with general requirements.
[0004] The prior art has the following defects: 1. The surface of the rubber roller is covered with liquid silicone, and the water flowing inside the roller cannot cool the liquid silicone on the surface well; 2. The existing technology uses the viscosity of the film itself and the initial speed difference between the casting roll and the post-cooling roll to achieve the sharp angle separation of the film, which cannot stabilize the angle of film separation; 3. In the prior art, the film is directly transferred from the rear cooling roller to the shaping roller, which results in a very small wrap angle of the film on the rear cooling roller, and cannot play a good cooling and shaping role. Summary of the invention
[0005] In order to solve the deficiencies of the prior art, the object of the present invention is to provide an automated forming device for producing Teflon tape which has a simple structure, can fully cool and shape the film and has a film protection function.
[0006] In order to achieve the above object, the present invention adopts the following technical solution: An automated forming device for producing Teflon tape comprises a casting die and a heating device arranged below the casting die, a rubber roller is arranged below the heating device, a casting roller is arranged on one side of the rubber roller, the rubber roller contacts the casting roller, a stripping roller is arranged above the side of the casting roller away from the rubber roller, a first adjusting device is arranged at one end of the stripping roller for adjusting the angle of the stripping roller, a rear cooling roller is arranged on the side of the casting roller close to the stripping roller, a shaping roller is arranged on the other side of the rear cooling roller, a cooling block is arranged between the rear cooling roller and the shaping roller, the cooling block is arranged below the rear cooling roller and the shaping roller, and an angle adjustment device is arranged below the cooling block.
[0007] As a further preferred embodiment of the present invention, a reflective plate is arranged above the casting roller, and the reflective plate corresponds to the heating device. The heating device is configured for infrared heating, and a constant temperature control module is arranged inside. By arranging the constant temperature control module, the temperature of the material from the casting die head to the pressing point between the rubber roller and the casting roller is ensured; by arranging the reflective plate, the heat is kept in a certain space to prevent heat loss.
[0008] As a further preferred embodiment of the present invention, a plurality of back cold rollers are arranged on the side of the rubber roller away from the casting roller, the back cold roller is in contact with the rubber roller, push blocks are arranged at both ends of the back cold roller through bearings, a connecting piece is connected inside the push block, a first cylinder is arranged at the other end of the connecting piece, and the connecting piece is connected to the output end of the cylinder; the surface of the rubber roller is cooled by arranging the back cold roller; and the first cylinder is arranged to prevent the liquid silicone on the surface of the rubber roller from being damaged due to long-term static pressure of the back cold roller.
[0009] As a further preferred embodiment of the present invention, the back cold roller includes a roller body and a second cooling pipe, the second cooling pipe is arranged in the roller body, the shaft at one end of the back cold roller is arranged as a hollow structure, which is used to place the water inlet pipe and the second water outlet pipe of the second cooling pipe, and a water joint is installed on the shaft, and the water joint is arranged as a two-way circulation circulating water rotary joint. By arranging the second cooling pipe, the surface temperature of the back cold roller is guaranteed, and the back cold roller can be better cooled.
[0010] As a further preferred embodiment of the present invention, the first adjusting device includes two first gears, the stripping roller is arranged between the two first gears through a bearing, and is arranged on the upper part of the first gear, the first gear is fixed to the bracket through a bearing, a second gear is arranged below the first gear through meshing, the second gear is installed on the output end of the first motor, the first motor is fixed to the bracket, a sensing column is arranged at the lower part of the first gear away from the stripping roller, and a first limit switch and a second limit switch are arranged on the side of the bracket close to the sensing column. By setting the first adjusting device, the angle of the stripping roller can be adjusted according to specific needs, the wrap angle of the casting roller can be controlled, and the film can be better stripped to prevent the film from being excessively stretched when leaving the casting roller, resulting in molecular chain breakage and film scrapping. At the same time, the separation angle can be stabilized to ensure the stability of the film quality.
[0011] As a further preferred embodiment of the present invention, the axis of the first gear and the axis of the casting roller are located on the same horizontal plane, and the position of the sensing column, the axis of the peeling roller, the first limit switch position and the second limit switch position are all located on the same circumference.
[0012] As a further preferred embodiment of the present invention, the cooling block includes a cooling shell, a first cooling pipe is arranged in the cooling shell, the first cooling pipe is spirally distributed in the cooling shell, a first water inlet is arranged at one end of the first cooling pipe, one end of the first water inlet is arranged outside the cooling shell, the other end of the first cooling pipe is connected to a first water outlet pipe, the first water outlet pipe is arranged in the middle of the cooling shell, and the other end is arranged outside the cooling shell, the first water inlet and the first water outlet pipe are arranged on the same side, and by adding a cooling block, the surrounding environment of the membrane is cooled down, thereby achieving a cooling effect and allowing the membrane to be fully cooled.
[0013] As a further preferred embodiment of the present invention, a plurality of connecting plates are provided between the first cooling pipe and the cooling shell, and the connecting plates can quickly exchange heat to keep the cooling shell at a certain temperature.
[0014] The wrap angle adjustment device includes a first guide roller, a second guide roller and two bidirectional cylinders symmetrically arranged between the first guide roller and the second guide roller, a first connecting block is arranged on the two output ends of the bidirectional cylinder, four first connecting blocks are respectively installed on the outer side of the shaft at both ends of the first guide roller and the outer side of the shaft at both ends of the second guide roller through bearings, a first fixed seat is arranged below the bidirectional cylinder, the first fixed seat is arranged on the first adjustment disk, a first tooth is arranged below the first adjustment disk, a first rack is arranged below the first tooth through meshing cooperation, the first rack is installed on the first slide rail, the first adjustment disk is installed on the output end of the second motor, the length of the first rack is greater than the circumference of the first tooth, and the wrap angle is adjusted by arranging two guide rollers, so that the film can be fully cooled and shaped, and the excessive tension caused by excessive wrap angle can be prevented, thereby causing the molecular chain to break and the film to be scrapped.
[0015] As a further preferred embodiment of the present invention, the wrap angle adjustment device includes a first guide roller, two first guide roller adjustment devices, a second guide roller and two second guide roller adjustment devices, the first guide roller adjustment device and the second guide roller adjustment device have the same structure, the two first guide roller adjustment devices are arranged at both ends of the first guide roller through a second connecting block with a bearing, the first guide roller adjustment device includes a cylinder, the output end of the cylinder is connected to the second connecting block, a second fixed seat is arranged below the cylinder, the second fixed seat is arranged on the second adjustment disk, a second tooth is arranged below the second adjustment disk, a second rack is arranged below the second tooth through meshing, the second rack is installed on the second slide rail, the second adjustment disk is installed on the output end of the third motor, the length of the second rack is greater than the circumference of the second tooth, the position of the first guide roller adjustment device is arranged before and after the position of the second guide roller adjustment device to prevent interference between the first guide roller adjustment device and the second guide roller adjustment device.
[0016] The advantages of the present invention are as follows: the present invention has a simple structure and can fully protect and cool the film during the forming process, effectively improving the overall quality of the film and reducing the scrap rate; by arranging a back cold roller, the surface of the rubber roller can be effectively cooled, improving the defect that the rubber roller cannot be cooled by the cooling water inside the rubber roller due to the poor thermal conductivity of the liquid silicone on the surface; by arranging a peeling roller and a first adjustment device, the angle of the peeling roller can be adjusted as needed, so that the film will not be excessively stretched when it leaves the casting roller, resulting in molecular chain breakage and film scrapping, and at the same time, the separation angle can be stabilized to ensure the stability of the film quality; by arranging a cooling block, the environment around the film is cooled to improve the cooling efficiency; by arranging a wrap angle adjustment device, the film can be fully cooled and shaped, and excessive tension caused by an excessively large wrap angle can be prevented, thereby causing molecular chain breakage and film scrapping. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1It is a schematic diagram of the structure of the present invention; Figure 2 is a schematic structural diagram of a first regulating device; Figure 3 is a schematic diagram of the meshing relationship between the first gear and the second gear; Figure 4 is a schematic diagram of the positions of the first limit switch and the second limit switch; Figure 5 It is a structural schematic diagram of the wrap angle adjustment device; Figure 6 It is another structural schematic diagram of the wrap angle adjustment device; Figure 7 is a schematic diagram of the structure of the cooling block; Figure 8 It is a schematic diagram of the structure of the back cold roller.
[0018] Meanings of the reference numerals in the figure: 1. casting die head, 2. heating device, 3. reflective plate, 4. rubber roller, 5. casting roller, 6. peeling roller, 7. first adjusting device, 71. first gear, 72. second gear, 73. induction column, 74. bracket, 75. first motor, 76. first limit switch, 77. second limit switch, 8. rear cooling roller, 9. wrap angle adjustment device, 91. first guide roller, 92. second guide roller, 93. bidirectional cylinder, 94. first connecting block, 95 , the first fixed seat, 96, the first adjusting plate, 97, the first tooth, 98, the second motor, 99, the first rack, 910, the first slide rail, 10, the cooling block, 101, the cooling shell, 102, the first water inlet, 103, the first cooling pipe, 104, the first water outlet pipe, 105, the connecting plate, 11, the shaping roller, 12, the back cooling roller, 121, the roller body, 122, the second cooling pipe, 123, the water joint, 13, the push block, 14, the connecting piece, 15, the first cylinder. DETAILED DESCRIPTION
[0019] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.
[0020] Embodiment 1: Combination Figure 1 An automated forming device for producing Teflon tape comprises a casting die 1 and a heating device 2 arranged below the casting die 1, a rubber roller 4 is arranged below the heating device 2, a casting roller 5 is arranged on one side of the rubber roller 4, and the rubber roller 4 is in contact with the casting roller 5.
[0021] A reflective plate 3 is arranged above the casting roller 5, and the reflective plate 3 corresponds to the heating device 2. The heating device 2 is configured for infrared heating, and a constant temperature control module is arranged inside. By arranging the constant temperature control module, the temperature of the material from the casting die head 1 to the pressing point of the rubber roller 4 and the casting roller 5 is guaranteed; by arranging the reflective plate 3, the heat is kept in a certain space to prevent heat loss.
[0022] A plurality of back cold rollers 12 are arranged on the side of the rubber roller 4 away from the casting roller 5, and the back cold roller 12 is in contact with the rubber roller 4. Push blocks 13 are arranged at both ends of the back cold roller 12 through bearings, and a connecting piece 14 is connected inside the push block 13. A first cylinder 15 is arranged at the other end of the connecting piece 14, and the connecting piece 14 is connected to the output end of the cylinder; the surface of the rubber roller 4 is cooled by arranging the back cold roller 12; and the first cylinder 15 is arranged to prevent the liquid silicone on the surface of the rubber roller 4 from being damaged due to long-term static compression of the back cold roller 12.
[0023] Embodiment 2: Combination Figure 8 The back cold roller 12 includes a roller body 121 and a second cooling pipe 122. The second cooling pipe 122 is arranged in the roller body 121. The shaft at one end of the back cold roller 12 is arranged as a hollow structure for placing a water inlet pipe and a second water outlet pipe of the second cooling pipe, and a water joint 123 is installed on the shaft. The water joint 123 is arranged as a two-way circulation circulating water rotary joint. By arranging the second cooling pipe, the surface temperature of the back cold roller 12 is guaranteed, and the back cold roller 12 can be better cooled by the rubber roller 4.
[0024] A peeling roller 6 is arranged above the side of the casting roller 5 away from the rubber roller 4, and a first adjusting device 7 is arranged at one end of the peeling roller 6 for adjusting the angle of the peeling roller 6. A rear cooling roller 8 is arranged on the side of the casting roller 5 close to the peeling roller 6, and a shaping roller 11 is arranged on the other side of the rear cooling roller 8. A cooling block 10 is arranged between the rear cooling roller 8 and the shaping roller 11, and the cooling block 10 is arranged below the rear cooling roller 8 and the shaping roller 11, and an angle adjustment device 9 is arranged below the cooling block 10.
[0025] Example 3: Combination Figure 2-4, the first adjusting device 7 includes two first gear wheels 97 71, the stripping roller 6 is arranged between the two first gear wheels 97 71 through a bearing, and is arranged on the upper part of the first gear wheels 97 71, the first gear wheels 97 71 are fixed to the bracket 74 through a bearing, and a second gear 72 is arranged below the first gear wheels 97 71 through meshing, and the second gear 72 is installed on the output end of the first motor 75, the first motor 75 is fixed to the bracket 74, and a sensing column 73 is arranged at the lower part of the first gear wheel 97 71 away from the stripping roller 6, and a first limit switch 76 and a second limit switch 77 are arranged on the side of the bracket 74 close to the sensing column 73. By setting the first adjusting device 7, the stripping roller 6 can be adjusted in angle according to specific needs, the wrap angle of the casting roller 5 can be controlled, and the film can be better stripped to prevent the film from being excessively stretched when leaving the casting roller 5, resulting in molecular chain breakage and film scrapping. At the same time, the separation angle can be stabilized to ensure the stability of film quality.
[0026] The axis of the first gear wheel 71 and the axis of the casting roller 5 are located on the same horizontal plane, and the position of the sensing column 73, the axis of the stripping roller 6, the position of the first limit switch 76 and the position of the second limit switch 77 are all located on the same circumference.
[0027] The sensing column 73 moves between the first limit switch 76 and the second limit switch 77. When it approaches the first limit switch 76 or the second limit switch 77, the first motor 75 stops moving. When it is started next time, the second motor 98 reverses and drives the sensing column 73 to move toward the second limit switch 77 or the first limit switch 76.
[0028] Embodiment 4: Combination Figure 7 The cooling block 10 includes a cooling shell 101, a first cooling pipe 103 is arranged in the cooling shell 101, the first cooling pipe 103 is spirally distributed in the cooling shell 101, a first water inlet 102 is arranged at one end of the first cooling pipe 103, one end of the first water inlet 102 is arranged outside the cooling shell 101, the other end of the first cooling pipe 103 is connected to a first water outlet pipe 104, the first water outlet pipe 104 is arranged in the middle of the cooling shell 101, and the other end is arranged outside the cooling shell 101, the first water inlet 102 and the first water outlet pipe 104 are arranged on the same side, by adding the cooling block 10, the surrounding environment of the membrane is cooled, so as to achieve a cooling effect and fully cool the membrane.
[0029] A plurality of connecting plates 105 are provided between the first cooling pipe 103 and the cooling shell 101 . The connecting plates 105 can quickly exchange heat to keep the cooling shell 101 at a certain temperature.
[0030] Embodiment 5: Combination Figure 5The wrap angle adjustment device 9 includes a first guide roller 91, a second guide roller 92 and two bidirectional cylinders 93 symmetrically arranged between the first guide roller 91 and the second guide roller 92. First connecting blocks 94 are arranged on the two output ends of the bidirectional cylinder 93. Four first connecting blocks 94 are respectively installed on the outer sides of the shafts at both ends of the first guide roller 91 and the outer sides of the shafts at both ends of the second guide roller 92 through bearings. A first fixed seat 95 is arranged below the bidirectional cylinder 93. The first fixed seat 95 is arranged on a first adjustment disk 96. A first tooth 97 is arranged below the first adjustment disk 96. A first rack 99 is arranged below the first tooth 97 through meshing cooperation. The first rack 99 is installed on a first slide rail 910. The first adjustment disk is installed on the output end of the second motor 98. The length of the first rack 99 is greater than the circumference of the first tooth 97. By setting two guide rollers to adjust the wrap angle, the film can be fully cooled and shaped, and the tension caused by the excessive wrap angle can be prevented, thereby causing the molecular chain to break and the film to be scrapped.
[0031] Example 6: Combination Figure 6 The wrap angle adjustment device 9 includes a first guide roller 91, two first guide roller adjustment devices, a second guide roller 92 and two second guide roller adjustment devices. The first guide roller adjustment device and the second guide roller adjustment device have the same structure. The two first guide roller adjustment devices are arranged at both ends of the first guide roller 91 through a second connecting block with a bearing. The first guide roller 91 adjustment device includes a cylinder, the output end of the cylinder is connected to the second connecting block, a second fixed seat is arranged below the cylinder, the second fixed seat is arranged on the second adjustment disk, a second tooth is arranged below the second adjustment disk, a second rack is arranged below the second tooth through meshing, the second rack is installed on the second slide rail, the second adjustment disk is installed on the output end of the third motor, the length of the second rack is greater than the circumference of the second tooth, the position of the first guide roller adjustment device is arranged before and after the position of the second guide roller adjustment device, to prevent the first guide roller adjustment device and the second guide roller adjustment device from interfering.
[0032] The advantages of the present invention are as follows: the present invention has a simple structure, can fully protect and cool the film during the forming process, effectively improves the overall quality of the film, and reduces the scrap rate; by setting the back cold roller 12, the surface of the rubber roller 4 can be effectively cooled, improving the defect that the rubber roller 4 cannot be cooled by the cooling water inside the rubber roller 4 due to the poor thermal conductivity of the surface liquid silicone; by setting the peeling roller 6 and the first adjustment device, the angle of the peeling roller 6 can be adjusted as needed, so that the film will not be excessively stretched when it leaves the casting roller 5, resulting in molecular chain breakage and film scrapping, and at the same time, the separation angle can be stabilized to ensure the stability of the film quality; by setting the cooling block 10, the environment around the film is cooled to improve the cooling efficiency; by setting the wrap angle adjustment device, the film can be fully cooled and shaped, and the excessive tension caused by the excessive wrap angle can be prevented, thereby causing molecular chain breakage and film scrapping.
[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present invention.
Claims
1. An automated molding device for producing Teflon tape, comprising a casting die (1) and a heating device (2) arranged below the casting die (1), characterized in that: A rubber roller (4) is arranged below the heating device (2), a casting roller (5) is arranged on one side of the rubber roller (4), the rubber roller (4) is in contact with the casting roller (5), a peeling roller (6) is arranged above the side of the casting roller (5) away from the rubber roller (4), a first adjustment device (7) is arranged at one end of the peeling roller (6) for adjusting the angle of the peeling roller (6), a rear cooling roller (8) is arranged on the side of the casting roller (5) close to the peeling roller (6), a shaping roller (11) is arranged on the other side of the rear cooling roller (8), a cooling block (10) is arranged between the rear cooling roller (8) and the shaping roller (11), the cooling block (10) is arranged below the rear cooling roller (8) and the shaping roller (11), and a wrap angle adjustment device (9) is arranged below the cooling block (10).
2. The automatic forming device for producing Teflon tape according to claim 1, characterized in that: A reflective plate (3) is arranged above the casting roller (5), and the reflective plate (3) corresponds to the heating device (2). The heating device (2) is configured for infrared heating and has a constant temperature control module arranged therein.
3. The automatic forming device for producing Teflon tape according to claim 1, characterized in that: A plurality of back cold rollers (12) are arranged on the side of the rubber roller (4) away from the casting roller (5), and the back cold rollers (12) are in contact with the rubber roller (4). Push blocks (13) are arranged at both ends of the back cold roller (12) through bearings, and a connecting piece (14) is connected inside the push block (13). A first cylinder (15) is arranged at the other end of the connecting piece (14), and the connecting piece (14) is connected to the output end of the cylinder.
4. The automatic forming device for producing Teflon tape according to claim 3, characterized in that: The back cooling roller (12) comprises a roller body (121) and a second cooling pipe (122), wherein the second cooling pipe (122) is arranged in the roller body (121), and the shaft at one end of the back cooling roller (12) is arranged as a hollow structure for accommodating a water inlet pipe and a second water outlet pipe of the second cooling pipe, and a water joint (123) is installed on the shaft, and the water joint (123) is arranged as a two-way circulation water rotary joint.
5. The automatic forming device for producing Teflon tape according to claim 1, characterized in that: The first adjustment device (7) comprises two first gear (97) wheels (71); the peeling roller (6) is arranged between the two first gear (97) wheels (71) via a bearing and is arranged on the upper part of the first gear (97) wheel (71); the first gear (97) wheel (71) is fixed to the bracket (74) via a bearing; a second gear (72) is arranged below the first gear (97) wheel (71) by meshing; the second gear (72) is mounted on the output end of the first motor (75); the first motor (75) is fixed to the bracket (74); a sensing column (73) is arranged at the lower part of the first gear (97) wheel (71) away from the peeling roller (6); and a first limit switch (76) and a second limit switch (77) are arranged on the side of the bracket (74) close to the sensing column (73).
6. The automatic forming device for producing Teflon tape according to claim 5, characterized in that: The axis of the first gear (97) wheel (71) and the axis of the casting roller (5) are located on the same horizontal plane, and the position of the sensing column (73), the axis of the peeling roller (6), the position of the first limit switch (76) and the position of the second limit switch (77) are all located on the same circumference.
7. The automatic forming device for producing Teflon tape according to claim 1, characterized in that: The cooling block (10) comprises a cooling shell (101), a first cooling pipe (103) is arranged in the cooling shell (101), the first cooling pipe (103) is spirally distributed in the cooling shell (101), a first water inlet (102) is arranged at one end of the first cooling pipe (103), one end of the first water inlet (102) is arranged outside the cooling shell (101), the other end of the first cooling pipe (103) is connected to a first water outlet pipe (104), the first water outlet pipe (104) is arranged in the middle of the cooling shell (101), and the other end is arranged outside the cooling shell (101), and the first water inlet (102) and the first water outlet pipe (104) are arranged on the same side.
8. The automatic forming device for producing Teflon tape according to claim 7, characterized in that: A plurality of connecting plates (105) are provided between the first cooling pipe (103) and the cooling shell (101).
9. The automatic forming device for producing Teflon tape according to claim 1, characterized in that: The wrap angle adjustment device (9) comprises a first guide roller (91), a second guide roller (92) and two bidirectional cylinders (93) symmetrically arranged between the first guide roller (91) and the second guide roller (92); first connecting blocks (94) are arranged on two output ends of the bidirectional cylinder (93); four first connecting blocks (94) are respectively mounted on the outer side of the shaft at both ends of the first guide roller (91) and the outer side of the shaft at both ends of the second guide roller (92) through bearings; a first fixing seat (95) is arranged below the bidirectional cylinder (93); the first fixing seat (95) is arranged on a first adjustment disk (96); a first tooth (97) is arranged below the first adjustment disk (96); a first rack (99) is arranged below the first tooth (97) through meshing cooperation; the first rack (99) is mounted on a first slide rail (910); the first adjustment disk is mounted on the output end of a second motor (98); the length of the first rack (99) is greater than the circumference of the first tooth (97).
10. The automatic forming device for producing Teflon tape according to claim 1, characterized in that: The wrap angle adjustment device (9) comprises a first guide roller (91), two first guide roller adjustment devices, a second guide roller (92) and two second guide roller adjustment devices, the first guide roller adjustment device and the second guide roller adjustment device having the same structure, the two first guide roller adjustment devices being arranged at both ends of the first guide roller (91) via a second connecting block with a bearing, the first guide roller (91) adjustment device comprising a cylinder, the output end of the cylinder being connected to the second connecting block, a second fixing seat being arranged below the cylinder, the second fixing seat being arranged on a second adjustment disk, a second tooth being arranged below the second adjustment disk, a second rack being arranged below the second tooth through meshing cooperation, the second rack being mounted on a second slide rail, the second adjustment disk being mounted on the output end of a third motor, the length of the second rack being greater than the circumference of the second tooth, and the position of the first guide roller adjustment device being arranged in front and behind the position of the second guide roller adjustment device.