Traction mechanism for PP plate production

Abstract

The invention relates to the technical field of PP plate production, in particular to a traction mechanism for PP plate production, which mainly comprises a fixing frame, a support frame I and an adjusting assembly are fixedly mounted on the top surface of the fixing frame, a support frame II is fixedly mounted at the upper end of the adjusting assembly, and a plurality of traction rollers are arranged in the middles of the support frame I and the support frame II; the scraping mechanism is arranged in the traction roller, and the cooling mechanism is arranged in the traction roller. The water inlet assembly sprays water to the inner wall of the traction roller from the spray head for cooling, when the round frame drives the scraping frame to reciprocate, the space between the rubber sleeve and the limiting rod is large, and meanwhile, the rubber sleeve is matched with the elastic piece to drive a nozzle of the spray head to rotate in the direction opposite to the moving direction of the round frame, so that water sprayed by the spray head cannot be removed by the scraping plate in time; by means of the cooling device, the traction roller can be effectively cooled, it is guaranteed that the traction roller is not prone to being hot, when the traction roller extrudes and conveys PP plates, deformation of the PP plates is not prone to being caused, and flatness and quality of the surfaces of the PP plates are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of PP plate production, in particular to a traction mechanism for PP plate production. Background Art

[0002] PP sheet is a semi-crystalline plastic sheet made of polypropylene as the main body, which is made by extrusion with the addition of inorganic fillers and other additives. It has many excellent properties and a wide range of applications. After the PP sheet is produced and formed, a traction mechanism is required to pull the shaped sheet out from the shaping table and convey it forward at a certain speed to ensure the continuous production of the sheet and carry out subsequent cutting processing.

[0003] When the traction mechanism is traction-conveying the formed PP sheet, the sheet is conveyed by the friction between the rotation of the upper and lower traction rollers and the upper and lower sides of the sheet. Since the PP sheet has a certain amount of heat after being formed, the traction roller has a high temperature when the traction roller is in contact and friction with the PP sheet for a long time. When the traction roller extrude and convey the PP sheet, the surface material of the PP sheet is easily softened and deformed when it is squeezed by the high-temperature traction roller. The originally flat and smooth surface of the PP sheet may have depressions, convexities or other irregular deformations, thereby affecting the quality of the PP sheet. Summary of the Invention

[0004] The object of the present invention is to provide a traction mechanism for PP sheet production to solve the problem of overheating of the traction roller raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A traction mechanism for PP sheet production includes: a fixed frame, a support frame 1 and an adjustment component are fixedly installed on the top surface of the fixed frame, a support frame 2 is fixedly installed on the upper end of the adjustment component, a plurality of traction rollers are provided between the support frame 1 and the support frame 2, and a fixed pipe 1 and a fixed pipe 2 are fixedly installed at both ends of the traction rollers, and further includes:

[0007] The heat dissipation mechanism is arranged inside the traction roller, and the heat dissipation mechanism includes a rotating shaft rotatably mounted on the inner wall of the fixed tube through a bearing seat, and a fan blade is fixedly mounted on the outer wall of one end of the rotating shaft. The heat dissipation mechanism is used to dissipate heat from the traction roller;

[0008] The scraping mechanism is arranged inside the traction roller. The scraping mechanism includes a circular frame inside the traction roller. A plurality of limit sleeves are fixedly installed on the inner wall of the circular frame. Limit rods are slidably installed on the inner walls of the plurality of limit sleeves. The scraping mechanism is used to scrape scale and impurities from the inner wall of the traction roller.

[0009] The cooling mechanism is arranged inside the traction roller. The cooling mechanism includes a nozzle located inside the traction roller. The outer wall of the nozzle is hinged with a hinge block 1. The cooling mechanism is used to spray water to cool the inner wall of the traction roller.

[0010] Preferably, the other ends of the multiple fixed tubes 1 and the multiple fixed tubes 2 are respectively rotated through the bearing seats to pass through the sides of the support frame 1 and the support frame 2 and extend to the other side. A transmission assembly is fixedly installed on the inner wall of the fixed frame, and the transmission assembly is connected to the lower traction roller.

[0011] Preferably, gear 1 is fixedly installed on the other end of the rotating shaft, gear 2 is fixedly installed on the outer wall of the fixed tube 1, and the sides of the support frame 1 and the support frame 2 are both rotatably installed with connecting shafts through bearing seats.

[0012] Preferably, a double gear is fixedly mounted on the outer wall of the connecting shaft, and the outer walls of the double gear are respectively meshed and connected with the outer wall of gear one and the outer wall of gear two, and a plurality of through holes are provided at both ends of the traction roller.

[0013] Preferably, a reciprocating screw is fixedly installed at one end of the rotating shaft, a threaded sleeve is threadedly connected to the outer wall of the reciprocating screw, a round sleeve is fixedly installed on the outer wall of the threaded sleeve, a connecting strip is fixedly installed on the outer wall of the round sleeve, and the other end of the connecting strip is fixedly connected to the inner wall of the circular frame.

[0014] Preferably, a scraping frame is fixedly installed on the outer wall of the circular frame, the outer wall of the scraping frame is slidably connected to the inner wall of the traction roller, and both ends of the plurality of limit rods are fixedly connected to the inner walls of both ends of the traction roller.

[0015] Preferably, multiple nozzles are provided, one side of the hinge block is fixedly connected to the outer wall of the circular sleeve, a second hinge block is fixedly installed on the outer wall of the nozzle, and a connecting rod is hinged on the inner wall of the second hinge block.

[0016] Preferably, a movable frame is provided on one side of the circular sleeve, and a plurality of rubber sleeves are fixedly installed on the side of the movable frame. The inner walls of the plurality of rubber sleeves are respectively slidably connected to the outer walls of the plurality of limit rods. A plurality of grooves are opened on the side of the movable frame, and the other end of the connecting rod is hinged to the inner wall of the groove.

[0017] Preferably, an elastic member is fixedly installed on the side of the limiting sleeve, and the other end of the elastic member is fixedly connected to the side of the movable frame. One end of each of the multiple nozzles is fixedly installed with a bellows, and the other end of each of the multiple bellows is connected to one end of the fixed pipe 2.

[0018] Preferably, the other end of fixed pipe 2 is connected to a water inlet pipe through a connector that is rotatable, and water inlet box 1 and water inlet box 2 are fixedly installed on the sides of support frame 1 and support frame 2 respectively. Water inlet box 1 and water inlet box 2 are connected through a hose, and multiple water inlet pipes are respectively connected to water inlet box 1 and water inlet box 2. A water inlet assembly is fixedly installed on the inner wall of the fixed frame, and the water inlet assembly is connected to water inlet box 1.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention provides a water inlet assembly to add cooling water to the water inlet box one and the water inlet box two, and transports the cooling water to the nozzle through the water inlet pipe, the fixed pipe two and the bellows. The nozzle sprays water to the inner wall of the traction roller for cooling. When the circular frame drives the scraping frame to move back and forth, due to the larger gap between the rubber sleeve and the limit rod and the cooperation with the elastic member, the distance between the moving frame and the circular frame changes to a certain extent. The moving frame drives the connecting rod to move through the groove body, and the connecting rod drives the hinge block two and the nozzle to rotate a certain angle. In the process of the reciprocating movement of the circular frame, the distance between the moving frame and the circular frame is different. The direction in which the nozzle of the nozzle is driven by the moving frame to rotate is opposite to the direction in which the circular frame moves, so that the water sprayed by the nozzle will not be cleared by the scraper plate in time, and the traction roller can be effectively cooled, ensuring that the traction roller is not easily heated. When the traction roller squeezes and transports the PP sheet, it is not easy to cause deformation of the PP sheet, thereby ensuring the flatness and quality of the surface of the PP sheet.

[0021] When the PP sheet is conveyed by the traction roller, the traction roller rotates, driving the fixed tube 1 to rotate, the fixed tube 1 drives the gear 2 to rotate, the gear 2 drives the double gear to rotate, and the double gear drives the gear 1 and the rotating shaft to rotate. Due to the different number of teeth on the two toothed discs of the double gear, the speed of rotation of the gear 1 and the rotating shaft is greater than the speed of rotation of the traction roller, and the rotating shaft drives the fan blade to rotate, and the fan blade blows air to the inner wall of the traction roller to dissipate heat, taking away the heat on the traction roller, ensuring that the traction roller is not easily heated. When the traction roller squeezes and conveys the PP sheet, it is not easy to cause deformation of the PP sheet, ensuring the flatness and quality of the PP sheet surface;

[0022] When the rotating shaft rotates relative to the traction roller, the rotating shaft drives the reciprocating screw to rotate, the reciprocating screw drives the threaded sleeve and the round sleeve to move back and forth, the round sleeve drives the connecting bar and the round frame to move back and forth, the round frame drives the scraping frame to move back and forth, and the scraping frame scrapes off the dust and scale on the inner wall of the traction roller, ensuring that the inner wall of the traction roller is not easily blocked by scale and dust to affect the heat dissipation efficiency of the traction roller, further improving the heat dissipation efficiency and quality of the traction roller, and ensuring the quality of PP sheet transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of a three-dimensional structure of the water inlet box of the present invention;

[0025] Figure 3 This is a schematic diagram of a three-dimensional structure of a support frame of the present invention;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the traction roller of the present invention;

[0027] Figure 5It is a schematic cross-sectional view of the three-dimensional structure of the traction roller of the present invention;

[0028] Figure 6 For the present invention Figure 3 Enlarged view of point A in the middle;

[0029] Figure 7 For the present invention Figure 5 Enlarged view of point B in the middle;

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of the scraping frame of the present invention;

[0031] Figure 9 This is a schematic diagram of the three-dimensional structure of the nozzle of the present invention;

[0032] Figure 10 It is an exploded view of the three-dimensional structure of the movable frame of the present invention.

[0033] In the picture:

[0034] 1. Fixed frame; 101. Support frame 1; 102. Support frame 2; 103. Adjustment assembly; 104. Transmission assembly; 105. Pulling roller; 106. Fixed pipe 1; 107. Fixed pipe 2;

[0035] 2. Heat dissipation mechanism; 201. Rotating shaft; 202. Gear 1; 203. Gear 2; 204. Connecting shaft; 205. Duplex gear; 206. Fan blade; 207. Through hole;

[0036] 3. Scraping mechanism; 301. Reciprocating screw; 302. Threaded sleeve; 303. Round sleeve; 304. Connecting strip; 305. Round frame; 306. Scraping frame; 307. Limiting sleeve; 308. Limiting rod;

[0037] 4. Cooling mechanism; 401. Water inlet pipe; 402. Water inlet box 1; 403. Water inlet box 2; 404. Hose; 405. Water inlet assembly; 406. Hinge block 1; 407. Nozzle; 408. Bellows; 409. Hinge block 2; 410. Connecting rod; 411. Moving frame; 412. Trough; 413. Rubber sleeve; 414. Elastic part. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0040] like Figures 1-10 As shown, the present application provides a traction mechanism for PP sheet production, including: a fixed frame 1, a support frame 101 and an adjustment component 103 are fixedly installed on the top surface of the fixed frame 1, a support frame 2 102 is fixedly installed on the upper end of the adjustment component 103, a plurality of traction rollers 105 are provided between the support frame 101 and the support frame 2 102, and a fixed pipe 106 and a fixed pipe 2 107 are fixedly installed at both ends of the traction roller 105, and further comprising:

[0041] The heat dissipation mechanism 2 is arranged inside the traction roller 105. The heat dissipation mechanism 2 includes a rotating shaft 201 rotatably mounted on the inner wall of the fixed tube 106 through a bearing seat. A fan blade 206 is fixedly mounted on the outer wall of one end of the rotating shaft 201. The heat dissipation mechanism 2 is used to dissipate heat from the traction roller 105.

[0042] Specifically, such as Figures 1-10 As shown, the other ends of multiple fixed tubes 106 and multiple fixed tubes 107 are rotated through the bearing seats to pass through the sides of support frame 101 and support frame 2 102 and extend to the other side. A transmission component 104 is fixedly installed on the inner wall of the fixed frame 1, and the transmission component 104 is connected to the lower traction roller 105 for transmission.

[0043] In this embodiment, the transmission assembly 104 is provided to provide power to the lower traction roller 105 .

[0044] Specifically, such as Figures 1-10 As shown, a gear 1 202 is fixedly installed on the other end of the rotating shaft 201, a gear 203 is fixedly installed on the outer wall of the fixed tube 106, and a connecting shaft 204 is rotatably installed on the sides of the support frame 101 and the support frame 2 102 through the bearing seat.

[0045] In this embodiment, the gear 1 202 is provided to drive the rotating shaft 201 and the fan blade 206 to rotate, and the wind force generated by the fan blade 206 blows air to the inner wall of the traction roller 105 to dissipate heat.

[0046] Specifically, such as Figures 1-10 As shown, a double gear 205 is fixedly installed on the outer wall of the connecting shaft 204, and the outer walls of the double gear 205 are respectively meshed with the outer walls of gear 1 202 and gear 2 203, and multiple through holes 207 are opened at both ends of the traction roller 105.

[0047] In this embodiment, by setting the number of teeth on both sides of the double gear 205 to be different, the gear 2 203 drives the double gear 205 to rotate, and the double gear 205 drives the gear 1 202 to rotate, and the rotation rate of the gear 1 202 is greater than the rotation rate of the gear 2 203.

[0048] The scraping mechanism 3 is arranged inside the traction roller 105. The scraping mechanism 3 includes a circular frame 305 inside the traction roller 105. A plurality of limiting sleeves 307 are fixedly installed on the inner wall of the circular frame 305. The limiting rods 308 are slidably installed on the inner walls of the plurality of limiting sleeves 307. The scraping mechanism 3 is used to scrape scale impurities from the inner wall of the traction roller 105.

[0049] Specifically, such as Figures 1-10 As shown, a reciprocating screw 301 is fixedly installed at one end of the rotating shaft 201, a threaded sleeve 302 is threadedly connected to the outer wall of the reciprocating screw 301, a round sleeve 303 is fixedly installed on the outer wall of the threaded sleeve 302, a connecting bar 304 is fixedly installed on the outer wall of the round sleeve 303, and the other end of the connecting bar 304 is fixedly connected to the inner wall of the round frame 305.

[0050] In this embodiment, the rotating shaft 201 drives the reciprocating screw 301 to rotate, drives the threaded sleeve 302 and the circular sleeve 303 to move, and drives the connecting bar 304 and the circular frame 305 to move.

[0051] Specifically, such as Figures 1-10 As shown, a scraping frame 306 is fixedly installed on the outer wall of the circular frame 305 , the outer wall of the scraping frame 306 is slidably connected to the inner wall of the traction roller 105 , and the ends of multiple limiting rods 308 are fixedly connected to the inner walls of both ends of the traction roller 105 .

[0052] In this embodiment, the scraping frame 306 is provided to scrape away dust and scale from the inner wall of the traction roller 105 , and the limiting sleeve 307 and the limiting rod 308 are provided to limit the circular frame 305 .

[0053] The cooling mechanism 4 is arranged inside the traction roller 105. The cooling mechanism 4 includes a nozzle 407 located inside the traction roller 105. The outer wall of the nozzle 407 is hinged with a hinge block 406. The cooling mechanism 4 is used to spray water to cool the inner wall of the traction roller 105.

[0054] Specifically, such as Figures 1-10 As shown, multiple nozzles 407 are provided, the side of the hinge block 1 406 is fixedly connected to the outer wall of the circular sleeve 303, the outer wall of the nozzle 407 is fixedly installed with a hinge block 2 409, and the inner wall of the hinge block 2 409 is hinged with a connecting rod 410.

[0055] In this embodiment, water is sprayed on the inner wall of the traction roller 105 for cooling through the provided nozzle 407 .

[0056] Specifically, such as Figures 1-10 As shown, a movable frame 411 is provided on one side of the circular sleeve 303, and a plurality of rubber sleeves 413 are fixedly installed on the side of the movable frame 411. The inner walls of the plurality of rubber sleeves 413 are respectively slidably connected to the outer walls of the plurality of limit rods 308. A plurality of grooves 412 are opened on the side of the movable frame 411, and the other end of the connecting rod 410 is hinged to the inner wall of the groove 412.

[0057] In this embodiment, due to the provision of the rubber sleeve 413 , the friction between the rubber sleeve 413 and the limiting rod 308 is greater and greater than the friction between the limiting sleeve 307 and the limiting rod 308 .

[0058] Specifically, such as Figures 1-10 As shown, an elastic member 414 is fixedly installed on the side of the limiting sleeve 307, and the other end of the elastic member 414 is fixedly connected to the side of the movable frame 411. One end of each of the multiple nozzles 407 is fixedly installed with a bellows 408, and the other end of each of the multiple bellows 408 is connected to one end of the fixed pipe 107.

[0059] In this embodiment, the elastic member 414 applies elastic force and tension to the movable frame 411 , and the bellows 408 can be extended and retracted.

[0060] Specifically, such as Figures 1-10 As shown, the other end of the fixed pipe 2 107 is connected to the water inlet pipe 401 through a connector, and the sides of the support frame 1 101 and the support frame 2 102 are respectively fixedly installed with water inlet box 1 402 and water inlet box 2 403, and the water inlet box 1 402 and the water inlet box 2 403 are connected through a hose 404. Multiple water inlet pipes 401 are respectively connected to the water inlet box 1 402 and the water inlet box 2 403, and a water inlet assembly 405 is fixedly installed on the inner wall of the fixed frame 1, and the water inlet assembly 405 is connected to the water inlet box 1 402.

[0061] In this embodiment, cooling water is provided to the device through the water inlet assembly 405, and the hose 404 is provided to connect the water inlet box 1 402 and the water inlet box 2 403, and can be extended and contracted.

[0062] The specific solution is as follows: open the adjustment component 103, drive the support frame 2 102 to move to an appropriate height, so that the upper and lower traction rollers 105 squeeze the PP plate, open the transmission component 104 to drive the lower traction roller 105 to rotate to traction and convey the PP plate, and at the same time, the traction roller 105 rotates, driving the fixed tube 106 to rotate, the fixed tube 106 drives the gear 2 203 to rotate, the gear 203 drives the double gear 205 to rotate, the double gear 205 drives the gear 1 202 and the rotating shaft 201 to rotate, and due to the different number of teeth on the two toothed discs of the double gear 205, the speed of rotation of the gear 1 202 and the rotating shaft 201 is greater than the speed of rotation of the traction roller 105, and the rotating shaft 201 The fan blades 206 are driven to rotate, and the fan blades 206 blow air to the inner wall of the traction roller 105 to dissipate heat, taking away the heat on the traction roller 105, ensuring that the traction roller 105 is not easily heated. At the same time, the water inlet component 405 adds cooling water to the water inlet box 1 402 and the water inlet box 2 403, and transports it to the nozzle 407 through the water inlet pipe 401, the fixed pipe 2 107 and the bellows 408. The nozzle 407 sprays water to cool the inner wall of the traction roller 105. At this time, the rotating shaft 201 rotates relative to the traction roller 105, and the rotating shaft 201 drives the reciprocating screw rod 301 to rotate. The reciprocating screw rod 301 drives the threaded sleeve 302 and the round sleeve 303 to move back and forth, and the round sleeve 303 drives the connecting bar 304 and the round frame 305 to move back and forth. The circular frame 305 drives the scraping frame 306 to move back and forth, and the scraping frame 306 scrapes the dust and scale on the inner wall of the traction roller 105, ensuring that the inner wall of the traction roller 105 is not easily blocked by scale and dust to affect the heat dissipation efficiency of the traction roller 105, further improving the heat dissipation efficiency and quality of the traction roller 105, and ensuring the quality of the PP sheet conveying. When the circular frame 305 drives the scraping frame 306 to move back and forth, due to the larger distance between the rubber sleeve 413 and the limit rod 308, and the cooperation with the elastic member 414, the distance between the moving frame 411 and the circular frame 305 changes to a certain extent, and the moving frame 411 drives the connecting rod 410 to move through the groove body 412, and the connecting rod 410 drives the hinge The connecting block 409 and the nozzle 407 rotate at a certain angle, and during the reciprocating movement of the circular frame 305, the distance between the moving frame 411 and the circular frame 305 is different. The direction in which the nozzle of the nozzle 407 is driven by the moving frame 411 to rotate is opposite to the direction in which the circular frame 305 moves, so that the water sprayed by the nozzle 407 will not be cleared by the scraper plate in time, and the traction roller 105 can be effectively cooled. The wind force generated by the fan blades 206 blows towards the cooling water, accelerating the evaporation of water to absorb and discharge the heat of the inner wall of the traction roller 105, ensuring that the traction roller 105 is not easy to get hot, and when the traction roller 105 extrude and convey the PP sheet, it is not easy to cause deformation of the PP sheet, thereby ensuring the flatness and quality of the surface of the PP sheet.

[0063] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative; within the scope of the present invention, the technical features of the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0064] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A traction mechanism for PP sheet production, comprising: A fixed frame (1), wherein a support frame 1 (101) and an adjustment component (103) are fixedly installed on the top surface of the fixed frame (1), a support frame 2 (102) is fixedly installed on the upper end of the adjustment component (103), a plurality of traction rollers (105) are provided between the support frame 1 (101) and the support frame 2 (102), and a fixed pipe 1 (106) and a fixed pipe 2 (107) are fixedly installed and penetrated at both ends of the traction roller (105), characterized in that it also includes: A heat dissipation mechanism (2), the heat dissipation mechanism (2) being arranged inside the traction roller (105), the heat dissipation mechanism (2) comprising a rotating shaft (201) rotatably mounted on the inner wall of a fixed tube (106) via a bearing seat, a fan blade (206) being fixedly mounted on the outer wall of one end of the rotating shaft (201), and the heat dissipation mechanism (2) being used to dissipate heat from the traction roller (105); A scraping mechanism (3), the scraping mechanism (3) being arranged inside the traction roller (105), the scraping mechanism (3) comprising a circular frame (305) inside the traction roller (105), a plurality of limiting sleeves (307) being fixedly mounted on the inner wall of the circular frame (305), and limiting rods (308) being slidably mounted on the inner walls of the plurality of limiting sleeves (307), the scraping mechanism (3) being used to scrape scale impurities from the inner wall of the traction roller (105); A cooling mechanism (4) is provided inside the traction roller (105), the cooling mechanism (4) comprising a nozzle (407) located inside the traction roller (105), an outer wall of the nozzle (407) being hinged with a hinge block (406), and the cooling mechanism (4) is used for spraying water to cool the inner wall of the traction roller (105).

2. A traction mechanism for PP sheet production according to claim 1, characterized in that: The other ends of the plurality of fixed tubes one (106) and the plurality of fixed tubes two (107) are rotated through the bearing seats to pass through the side surfaces of the support frame one (101) and the support frame two (102) and extend to the other side. A transmission component (104) is fixedly installed on the inner wall of the fixed frame (1), and the transmission component (104) is connected to the lower traction roller (105) in a transmission manner.

3. The traction mechanism for PP sheet production according to claim 1, characterized in that: A gear 1 (202) is fixedly mounted on the other end of the rotating shaft (201), a gear 2 (203) is fixedly mounted on the outer wall of the fixed tube 1 (106), and a connecting shaft (204) is rotatably mounted on the side surfaces of the support frame 1 (101) and the support frame 2 (102) via a bearing seat.

4. A traction mechanism for PP sheet production according to claim 3, characterized in that: A double gear (205) is fixedly mounted on the outer wall of the connecting shaft (204), and the outer wall of the double gear (205) is respectively meshed with the outer wall of gear 1 (202) and the outer wall of gear 2 (203). A plurality of through holes (207) are provided at both ends of the traction roller (105).

5. The traction mechanism for PP sheet production according to claim 1, characterized in that: A reciprocating screw rod (301) is fixedly mounted on one end of the rotating shaft (201); a threaded sleeve (302) is threadedly connected to the outer wall of the reciprocating screw rod (301); a round sleeve (303) is fixedly mounted on the outer wall of the threaded sleeve (302); a connecting strip (304) is fixedly mounted on the outer wall of the round sleeve (303); and the other end of the connecting strip (304) is fixedly connected to the inner wall of the circular frame (305).

6. A traction mechanism for PP sheet production according to claim 5, characterized in that: A scraping frame (306) is fixedly mounted on the outer wall of the circular frame (305), the outer wall of the scraping frame (306) is slidably connected to the inner wall of the traction roller (105), and the ends of the plurality of limiting rods (308) are fixedly connected to the inner walls of both ends of the traction roller (105).

7. The traction mechanism for PP sheet production according to claim 1, characterized in that: There are multiple nozzles (407), the side of the hinge block 1 (406) is fixedly connected to the outer wall of the circular sleeve (303), the outer wall of the nozzle (407) is fixedly installed with a hinge block 2 (409), and the inner wall of the hinge block 2 (409) is hinged with a connecting rod (410).

8. The traction mechanism for PP sheet production according to claim 7, characterized in that: A movable frame (411) is provided on one side of the circular sleeve (303), and a plurality of rubber sleeves (413) are fixedly installed on the side of the movable frame (411), and the inner walls of the plurality of rubber sleeves (413) are respectively slidably connected to the outer walls of the plurality of limit rods (308). A plurality of grooves (412) are opened on the side of the movable frame (411), and the other end of the connecting rod (410) is hinged to the inner wall of the groove (412).

9. A traction mechanism for PP sheet production according to claim 8, characterized in that: An elastic member (414) is fixedly installed on the side of the limiting sleeve (307), and the other end of the elastic member (414) is fixedly connected to the side of the movable frame (411). One end of each of the plurality of nozzles (407) is fixedly installed with a bellows (408), and the other end of each of the plurality of bellows (408) is connected to one end of the fixed pipe 2 (107).

10. A traction mechanism for PP sheet production according to claim 9, characterized in that: The other end of the second fixed pipe (107) is connected to the water inlet pipe (401) by rotating through a connector. The sides of the first support frame (101) and the second support frame (102) are respectively fixedly installed with a water inlet box (402) and a water inlet box (403). The first water inlet box (402) and the second water inlet box (403) are connected through a hose (404). The plurality of water inlet pipes (401) are respectively connected to the first water inlet box (402) and the second water inlet box (403). The inner wall of the fixed frame (1) is fixedly installed with a water inlet assembly (405), and the water inlet assembly (405) is connected to the first water inlet box (402).

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