A kind of unwinding material receiving device

Abstract

The application discloses a kind of unwinding material receiving devices, it is related to film production technical field, including material winding mechanism and the material receiving mechanism of being arranged in the material winding mechanism side;The material winding mechanism includes two symmetrical support plates, two The support plate is connected by fixed rod between the support plate, and the middle part of two The support plate is rotationally provided with rotary disc, two The opposite surface of rotary disc is equipped with bracket, and two material winding rollers and two sets of adjusting rollers are equipped between two brackets;The outside of rotary disc is equipped with two driving motors two, and the output end of driving motor two is connected with material winding roller;The application can be moved by being provided with movable material receiving frame on material receiving mechanism, material receiving frame can be pushed to specified position, material receiving speed can be improved, and shorter material receiving head is maintained, two movable compression rollers are provided on material receiving frame, and by the movement of compression roller, unwinding material receiving device can be continuously received under the condition of different speed and different material.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of film production, and particularly relates to a unwinding and splicing device. BACKGROUND

[0002] In the field of film production and processing, the unwinding and splicing device as a key equipment connecting the front and rear processes directly affects the production efficiency, product quality and cost control. With the increasing requirements of the downstream industries such as packaging, electronics and optics on the precision, strength and continuity of the film material, the traditional unwinding and splicing technology has gradually exposed the short board of being difficult to adapt to high-speed and high-stability production, becoming an important bottleneck restricting the upgrading of the industry.

[0003] A kind of unwinding automatic material splicing device is disclosed in Chinese patent (authorized announcement number CN218707711U), comprising a rack, the left end of the rack is provided with a swing assembly, the bottom end of the swing assembly is provided with a driven material splicing pressure roller, the right end of the swing assembly is provided with a material splicing cutter, the bottom end of the swing assembly is provided with a pair of shot travel switches, the middle part of the rack is rotatably connected with a rotating column through a bearing, the front end of the rotating column is provided with a turnover disc, the rear end of the rotating column extends to the rear end of the setting frame and is fixedly sleeved with a turnover gear ring, the front end of the turnover disc is provided with a new material roll, and the input end of the new material roll is connected with the output end of the driver. The unwinding automatic material splicing device has a low-cost precise adhesive tape detection device, the material splicing pressure roller has a pre-speed function, the required hardness of the material splicing pressure roller in the material splicing process is obtained through test and development, the material splicing cutter increases the pressurized rapid exhaust function, and ensures that the cutter can complete the material splicing action instantaneously at a speed of 600 m / min.

[0004] The material splicing speed of the above-mentioned unwinding automatic material splicing device cannot match the production rhythm at the front end. When the material splicing speed does not match the production line speed, the material tension is prone to fluctuate sharply, which causes the film to wrinkle, stretch or even break, and causes batch waste. Some enterprises are forced to adopt the mode of alternating operation of multiple units to adapt to high-speed production, which not only increases equipment investment but also increases the complexity of workshop management.

[0005] The success rate of automatic material splicing is generally lower than 95%, and the success rate of some light and thin films (such as PET films with a thickness of less than 20 μm) is even less than 80%. The main reason for the failure is that the adhesive tape positioning accuracy of the new and old material rolls is insufficient, and the unreasonable structure design of the pressure roller further aggravates the failure risk.

[0006] The insufficient material adaptability limits the application range of the device, which is designed only for a single type of film and is difficult to meet the material splicing requirements of films with different materials and thicknesses. For example, the surface tension of PE film is low, and the conventional adhesive tape bonding is prone to virtual bonding.

[0007] Tension control is difficult to cope with the nonlinear dynamic changes in the instant of material receiving, and lacks adaptive adjustment ability to different material characteristics. When the material batch is replaced, the parameters need to be recalibrated, increasing the operation complexity.

[0008] In summary, the existing film unwinding and material receiving device has technical defects in speed adaptation, material receiving accuracy and tension control, which cannot meet the production needs of modern film industry with high quality, high efficiency and low loss. Developing a new generation of unwinding and material receiving device with high-speed and accurate material receiving, high success rate and stable tension control has become an urgent need to promote the technical upgrading of the film industry. SUMMARY

[0009] The purpose of the present application is to overcome the technical defects of the existing film unwinding and material receiving device in speed adaptation, material receiving accuracy and tension control, and to provide an unwinding and material receiving device.

[0010] The present application is realized by the following technical scheme: an unwinding and material receiving device, comprising a material winding mechanism and a material receiving mechanism arranged on one side of the material winding mechanism;

[0011] The material winding mechanism comprises two symmetrically arranged support plates, the two support plates are connected by a fixed rod, and the middle part of each support plate is rotatably provided with a rotating disc, a bracket is mounted on the opposite surface of each rotating disc, and two material winding rollers and two groups of adjusting rollers are arranged between the two brackets; two drive motors are arranged on the outer side of the rotating disc, the output end of the drive motor is connected with the material winding roller, and the drive motor is used for winding the unwound plastic film.

[0012] The material receiving mechanism comprises two symmetrically arranged wall plates, the two wall plates are connected by a fixed rod, and three polishing rollers and a tension roller are arranged between the two wall plates, and a movable material receiving frame is arranged at the upper end of the wall plate, which is used to push the material receiving frame to a specified position, so as to improve the material receiving speed and keep a shorter material receiving head.

[0013] Preferably, the material receiving frame comprises two symmetrically arranged wall plates, two pressure rollers and a rotating roller are arranged between the two wall plates, a sliding seat is arranged at the lower end of each wall plate, a sliding rail is arranged at the upper end of each wall plate, the sliding seat is slidably arranged on the sliding rail, a drive motor is arranged on the outer side of the wall plate, the output end of the drive motor is drivingly connected with a drive rod, the drive rod penetrates through the two wall plates, drive gears are arranged on the both sides of the drive rod, and a rack plate is arranged at the lower end of the wall plate, the rack plate is drivingly engaged with the drive gear.

[0014] The rotation of the drive motor three drives the rotation of the drive rod and the drive gear, so as to drive the rack plate to move, and the whole material receiving frame moves accordingly.

[0015] Preferably, the inner side of the second wallboard is provided with a sliding rail II, a sliding seat II is slidingly arranged on the sliding rail II, both ends of the compression roller are connected to the sliding seat II at both ends through a fixed plate, and the compression roller is rotationally connected to the fixed plate; a cylinder I is arranged on the inner side wall of the second wallboard, one end of the cylinder I is fixedly connected to the second wallboard, and the other end is connected to one end of the fixed plate; through the extension and retraction of the cylinder I, the compression roller can be driven to move along the sliding rail II, so that the compression roller is close to the material winding roller.

[0016] Preferably, a cutting knife is arranged between the two compression rollers, a sliding rail III is arranged on the inner side of the second wallboard, a sliding seat III is slidingly arranged on the sliding rail III, both ends of the cutting knife are fixedly connected to the sliding seat III at both sides, and a cylinder II is arranged on the inner side wall of the second wallboard, one end of the cylinder II is fixedly connected to the second wallboard, and the other end is connected to one side of the cutting knife.

[0017] Through the extension and retraction of the cylinder II, the cutting knife is driven to move along the sliding rail III, so that the cutting knife completes the cutting action.

[0018] Preferably, both ends of the tension roller are connected to the inner wall of the first wallboard through a tension frame, the tension frame is U-shaped, both sides of the upper part of the tension frame are rotationally connected to the two first wallboards, and both ends of the tension roller are rotationally connected to the inner frame of the tension frame; the inner wall of the first wallboard is provided with a cylinder III, one end of the cylinder III is rotationally connected to the first wallboard, and the extension end is rotationally connected to the lower part of the tension frame.

[0019] In use, through the extension and retraction of the cylinder III, the tension roller is away from or close to the polishing roller, so as to adjust the tension of the plastic film.

[0020] Preferably, the outer side of one of the rotating discs is provided with a ring gear, a driving motor I is arranged on the side of the support plate close to the ring gear, the output end of the driving motor I is provided with a gear, and the gear is in meshing transmission with the ring gear; the driving motor I drives the ring gear to rotate, so as to drive the rotating disc to rotate and switch the material winding station.

[0021] Preferably, the two material winding rollers and the two groups of adjusting rollers are arranged in a cross shape and are spaced apart; the adjusting rollers are arranged on the inner side support of the rotating disc through a driving adjusting part.

[0022] Preferably, the driving adjusting part comprises a fixed frame, an adjusting track, and an adjusting cylinder, the fixed frame is arranged on the support, the middle part of the fixed frame is fixedly provided with the adjusting track, both ends of the adjusting track are symmetrically provided with adjusting roller mounting seats, and both ends of the adjusting roller are arranged on the adjusting roller mounting seats at both sides; two adjusting cylinders are arranged on both sides of the adjusting track, one end of the adjusting cylinder is rotationally mounted on the fixed frame, and the other end is connected to the adjusting roller mounting seat.

[0023] Through the extension and retraction of the two adjusting cylinders, the two adjusting roller mounting bases are driven to move close to or away from each other, so as to clamp or release the plastic film.

[0024] Compared with the prior art, the present application has the following advantages:

[0025] 1、The present application can improve the receiving speed and keep a shorter receiving head by setting a movable receiving frame on the receiving mechanism, and the receiving frame is pushed to the designated position.

[0026] 2、The present application can quickly cut different materials by pushing out the pressure roller through two cylinders and pushing out the cutter through another two cylinders, and can cut the front and back surfaces, solve the resistance to the base material during the receiving process of the original mechanical structure, greatly improve the 100% success rate of receiving, save the production time, and solve the waste caused by unstable receiving.

[0027] 3、The present application sets a tension roller on the receiving mechanism, and the tension roller is away from or close to the polishing roller through the extension and retraction of cylinder three during use, so as to automatically adjust the tension of the plastic film.

[0028] 4、The present application sets two groups of adjusting rollers to cooperate with two material winding rollers to realize alternating material winding, so as to realize non-stop receiving and improve the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a structure diagram of a material winding and receiving device;

[0030] Figure 2 It is a structure diagram of a material winding and receiving device after the shell is disassembled;

[0031] Figure 3 It is an upper end oblique view of a material winding and receiving device;

[0032] Figure 4 It is a structure diagram of a material winding and receiving device; Figure 3 It is an enlarged structure diagram of A in the middle;

[0033] Figure 5 It is a left view of a material winding and receiving device;

[0034] Figure 6 It is a sectional view along the direction A-A in the middle; Figure 5

[0035] Figure 7 It is a structure diagram of a receiving mechanism in a material winding and receiving device;

[0036] ​Figure 8 Figure 8 is a top view of the upper end of the material receiving mechanism of the unwinding and material receiving device;

[0037] Figure 9 Figure 9 is a structural schematic view of the material receiving rack of the unwinding and material receiving device;

[0038] Figure 10 Figure 10 is a left view of the material receiving rack of the unwinding and material receiving device;

[0039] Figure 11 Figure 11 is a sectional view along the direction B-B of the unwinding and material receiving device. Figure 10 Figure 12 is a sectional view along the direction B-B of the unwinding and material receiving device.

[0040]

[0041] 100, the material winding mechanism; 101, the support plate; 102, the rotating disc; 103, the ring gear; 104, the driving motor one; 105, the driving motor two; 106, the adjusting roller; 107, the material winding roller; 108, the driving adjusting part; 1081, the fixing frame; 1082, the adjusting track; 1083, the adjusting cylinder; 1084, the adjusting roller mounting seat;

[0042] 200, the material receiving mechanism; 201, the wallboard one; 202, the tension roller; 203, the polishing roller; 204, the tension rack; 205, the sliding rail one; 206, the wallboard two; 207, the pressing roller; 208, the cylinder one; 209, the cylinder two; 210, the rotating roller; 211, the sliding seat one; 212, the sliding rail two; 213, the sliding seat two; 214, the driving gear; 215, the driving motor three; 216, the cutting knife; 217, the rack plate; 218, the cylinder three; 219, the sliding rail three; 220, the sliding seat three. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0044] EMBODIMENT

[0045] Please refer to Figures 1-11 , an unwinding and material receiving device, comprising a material winding mechanism 100 and a material receiving mechanism 200 arranged on one side of the material winding mechanism 100;

[0046] ​The roll material mechanism 100 comprises two symmetrically arranged support plates 101, the two support plates 101 are connected through a fixing rod, and the middle parts of the two support plates 101 are rotationally provided with rotary discs 102, the opposite faces of the two rotary discs 102 are both provided with supports, and the two supports are provided with two roll material rollers 107 and two groups of adjusting rollers 106; the outer side of the rotary disc 102 is provided with two driving motors two 105, the output ends of the driving motors two 105 are connected with the roll material rollers 107, and are used for winding the unwound plastic film; the plastic film is PE film (polyethylene film), CPE film (chlorinated polyethylene film), PP film (polypropylene film), CPP film (cast polypropylene film) and the like.

[0047] The material receiving mechanism 200 comprises two symmetrically arranged wall plates one 201, the two wall plates one 201 are connected through a fixing rod, and the two wall plates one 201 are provided with three polishing rollers 203 and a tension roller 202, the upper ends of the wall plates one 201 are provided with movable material receiving frames, which are used for pushing the material receiving frames to the designated positions, so that the material receiving speed can be improved and the material receiving head can be kept shorter.

[0048] In the embodiment, the material receiving frame comprises two symmetrically arranged wall plates two 206, the two wall plates two 206 are provided with two compression rollers 207 and a rotating roller 210, the lower ends of the two wall plates two 206 are both provided with sliding seats one 211, the upper ends of the two wall plates one 201 are both provided with sliding rails one 205, the sliding seat one 211 is slidingly arranged on the sliding rail one 205, the outer side of the wall plate one 201 is provided with a driving motor three 215, the output end of the driving motor three 215 is drivingly connected with a driving rod, the driving rod penetrates through the two wall plates one 201, and the two sides of the driving rod are provided with driving gears 214, the lower end of the wall plate two 206 is further provided with a rack plate 217, and the rack plate 217 is drivingly engaged with the driving gear 214.

[0049] The driving rod and the driving gear 214 are driven to rotate by the rotation of the driving motor three 215, so that the rack plate 217 is driven to move, and the whole material receiving frame moves.

[0050] In the embodiment, the inner side of the wall plate two 206 is provided with a sliding rail two 212, a sliding seat two 213 is slidingly arranged on the sliding rail two 212, the two ends of the compression roller 207 are connected to the two ends of the sliding seat two 213 through a fixing plate, and the compression roller 207 is rotationally connected with the fixing plate; the inner side wall of the wall plate two 206 is provided with a cylinder one 208, one end of the cylinder one 208 is fixedly connected with the wall plate two 206, and the other end is connected with one end of the fixing plate, the compression roller 207 can be driven to move along the sliding rail two 212 through the extension and contraction of the cylinder one 208, so that the compression roller 207 is close to the roll material roller 107. The outer side of the compression roller 207 is attached with elastic materials such as rubber, so as to increase the success rate of material receiving.

[0051] In the embodiment, the cutting knife 216 is arranged between the two compression rollers 207, the slide rail three 219 is arranged on the inner side of the wallboard two 206, the slide seat three 220 is arranged on the slide rail three 219, the two ends of the cutting knife 216 are fixedly connected to the slide seat three 220 on the two sides, the air cylinder two 209 is arranged on the inner side wall of the wallboard two 206, one end of the air cylinder two 209 is fixedly connected to the wallboard two 206, and the other end is connected to one side of the cutting knife 216.

[0052] The air cylinder two 209 is telescopic, the cutting knife 216 is driven to move along the slide rail three 219, and the cutting knife 216 completes the cutting action.

[0053] In the embodiment, the two ends of the tension roller 202 are connected to the inner wall of the wallboard one 201 through the tension frame 204, the tension frame 204 is in a U shape, the two sides of the upper part of the tension frame 204 are rotatably connected to the two wallboard ones 201 respectively, and the two ends of the tension roller 202 are rotatably connected to the inner frame of the tension frame 204; the inner wall of the wallboard one 201 is provided with the air cylinder three 218, one end of the air cylinder three 218 is rotatably connected to the wallboard one 201, and the telescopic end is rotatably connected to the lower part of the tension frame 204.

[0054] In use, the tension roller 202 is driven away from or close to the polishing roller 203 through the telescopic movement of the air cylinder three 218, so that the tension of the plastic film is adjusted.

[0055] In the embodiment, the outer side of one of the rotating discs 102 is provided with the ring gear 103, a driving motor one 104 is arranged on the side support plate 101 close to the ring gear 103, the output end of the driving motor one 104 is provided with a gear, and the gear is in meshing transmission with the ring gear 103; the rotating disc 102 is driven to rotate through the driving motor one 104, so that the material winding position is switched.

[0056] In the embodiment, the two material winding rollers 107 and the two groups of adjusting rollers 106 are arranged in a cross shape and are spaced apart; the adjusting roller 106 is arranged on the inner side support of the rotating disc 102 through the driving adjusting part 108.

[0057] In the embodiment, the driving adjusting part 108 comprises a fixing frame 1081, an adjusting track 1082 and an adjusting cylinder 1083, the fixing frame 1081 is arranged on the support, the adjusting track 1082 is fixedly arranged on the middle part of the fixing frame 1081, the two ends of the adjusting track 1082 are symmetrically provided with the adjusting roller mounting seat 1084, and the two ends of the adjusting roller 106 are arranged on the adjusting roller mounting seat 1084 on the two sides; the two adjusting cylinders 1083 are arranged on the two sides of the adjusting track 1082, one end of the adjusting cylinder 1083 is rotatably arranged on the fixing frame 1081, and the other end is connected to the adjusting roller mounting seat 1084.

[0058] Through the extension and retraction of the two adjusting cylinders 1083, the two adjusting roller mounting seats 1084 are driven to move close to or away from each other, so as to clamp or release the plastic film.

[0059] Working principle:

[0060] During work, the plastic film comes from the material receiving mechanism 200, and then passes through the lower polishing roller 203, the tension roller 202, the middle polishing roller 203, the upper polishing roller 203, and then passes through the rotating roller 210 and one of the pressure rollers 207 (when the front surface is received, the plastic film passes through the lower end of the rotating roller 210, and then passes through the upper end of the upper pressure roller 207, and finally passes through the adjusting roller 106 and is wound on the material winding roller 107; when the back surface is received, the plastic film passes through the upper end of the rotating roller 210, and then passes through the lower end of the lower pressure roller 207, and finally passes through the adjusting roller 106 and is wound on the material winding roller 107).

[0061] According to the winding size of different plastic films, the position of the material receiving frame is adjusted, specifically by rotating the driving motor three 215 to drive the driving gear 214 to rotate, so as to drive the rack plate 217 to move, and then drive the material receiving frame to move to the specified position; when the winding is changed, the driving motor one 104 is started to drive the rotating disc 102 to rotate, so that the material winding roller 107 full of materials moves to the right, and the empty material winding roller 107 moves to the left; when the empty material winding roller 107 reaches the position of the pressure roller 207, the driving motor one 104 stops rotating, at this time the cylinder one 208 is extended to drive the pressure roller 207 to move close to the empty material winding roller 107, and the plastic film is pressed on the empty material winding roller 107, at the same time, the cylinder two 209 is extended to drive the cutting knife 216 to move to the right, so as to cut the plastic film, and the driving motor two 105 drives the empty material winding roller 107 to rotate to wind the plastic film, so that the non-stop material changing can be realized.

[0062] During the winding process, the tension of the plastic film when the material receiving mechanism 200 receives the material is adjusted by the extension and retraction of the cylinder three 218 to drive the swing of the tension frame 204, and the distance between the two adjusting rollers 106 can be adjusted by the extension and retraction of the two adjusting cylinders 1083, so that the tension of different materials during winding can be adjusted, and the self-adaptive adjustment ability of different material characteristics can be realized.

[0063] The present application realizes non-stop material receiving and improves work efficiency by setting two groups of adjusting rollers 106 to cooperate with two material winding rollers 107 for alternating winding; the material receiving frame can be pushed to the specified position by setting the movable material receiving frame on the material receiving mechanism 200, so that the material receiving speed can be improved and the material receiving head can be kept shorter; the material receiving frame is provided with two movable pressure rollers 207, and the non-stop material receiving of the unwinding and material receiving device can be realized under different speeds and different materials by moving the pressure rollers 207.

[0064] The application pushes out the pressing roller 207 by two cylinders instantaneously, and meanwhile, another two cylinders push out the cutter, so that the different materials are cut off quickly, and the front and back surfaces can be cut, the resistance to the base material in the material receiving process of the original mechanical structure is solved, the success rate of the material receiving is greatly improved to 100%, the production time is saved, and the waste caused by the unstable material receiving is solved.

[0065] The application sets the tension roller 202 on the material receiving mechanism 200, and when in use, the tension roller 202 is away from or close to the polishing roller 203 through the extension and retraction of the cylinder three 218, so that the tension of the plastic film is automatically adjusted.

[0066] It should be noted that, in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual such relationship or order between these entities or operations. Moreover, the terms “comprises”, “comprising”, or any other variations thereof are intended to cover non-exclusive inclusions, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or inherent to such a process, method, article or device. Without more limitations, the statement “comprises an element defined by a certain limit” does not exclude the presence of another identical element in the process, method, article or device including the element.

[0067] Although the embodiments of the application have been shown and described, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the application, and the scope of the application is defined by the appended claims and their equivalents.

Claims

1. A pay-off and splicing device, characterized in that: The utility model provides a plastic film winding and unwinding device, which comprises a winding mechanism (100) and a receiving mechanism (200) arranged on one side of the winding mechanism (100). The winding mechanism (100) comprises two symmetrically arranged supporting plates (101), the two supporting plates (101) are connected through a fixing rod, the middle part of each of the two supporting plates (101) is rotationally provided with a rotating disc (102), a support is arranged on the opposite surface of each of the two rotating discs (102), two winding rollers (107) and two groups of adjusting rollers (106) are arranged between the two supports, two driving motors II (105) are arranged on the outer side of the rotating disc (102), the output end of the driving motor II (105) is connected with the winding roller (107), and the driving motor II (105) is used for winding the unwound plastic film. The receiving mechanism (200) comprises two symmetrically arranged wall plates I (201), the two wall plates I (201) are connected through a fixing rod, three polishing rollers (203) and a tension roller (202) are arranged between the two wall plates I (201), the upper end of the wall plate I (201) is provided with a movable receiving frame, the receiving frame can be pushed to a specified position, the receiving speed can be improved, and the receiving head can be kept shorter. The receiving frame comprises two symmetrically arranged wall plates II (206), two pressing rollers (207) and a rotating roller (210) are arranged between the two wall plates II (206), a sliding seat I (211) is arranged at the lower end of each of the two wall plates II (206), a sliding rail I (205) is arranged at the upper end of each of the two wall plates I (201), the sliding seat I (211) is slidably arranged on the sliding rail I (205), a driving motor III (215) is arranged on the outer side of the wall plate I (201), the output end of the driving motor III (215) is drivingly connected with a driving rod, the driving rod penetrates through the two wall plates I (201), driving gears (214) are arranged on the two sides of the driving rod, a rack plate (217) is further arranged at the lower end of the wall plate II (206), and the rack plate (217) is in meshing transmission with the driving gear (214). The two winding rollers (107) and the two groups of adjusting rollers (106) are arranged in a cross shape and are spaced apart; the adjusting roller (106) is mounted on the inner side support of the rotating disc (102) through a driving adjusting piece (108). The driving adjusting piece (108) comprises a fixing frame (1081), an adjusting track (1082) and an adjusting cylinder (1083), the fixing frame (1081) is mounted on the support, the middle part of the fixing frame (1081) is fixedly provided with the adjusting track (1082), the two ends of the adjusting track (1082) are symmetrically provided with adjusting roller mounting seats (1084), and the two ends of the adjusting roller (106) are arranged on the adjusting roller mounting seats (1084) on the two sides; the two sides of the adjusting track (1082) are provided with two adjusting cylinders (1083), one end of the adjusting cylinder (1083) is rotationally mounted on the fixing frame (1081), and the other end of the adjusting cylinder (1083) is connected with the adjusting roller mounting seat (1084).

2. The unwinding and splicing device according to claim 1, characterized in that The inner side of the wallboard two (206) is provided with a slide rail two (212), the slide rail two (212) is provided with a sliding seat two (213), the two ends of the compression roller (207) are connected to the sliding seat two (213) through a fixed plate, and the compression roller (207) is rotatably connected with the fixed plate; the inner side wall of the wallboard two (206) is provided with a cylinder one (208), one end of the cylinder one (208) is fixedly connected to the wallboard two (206), and the other end is connected to one end of the fixed plate; through the extension and contraction of the cylinder one (208), the compression roller (207) can be driven to move along the slide rail two (212), so that the compression roller (207) is close to the material winding roller (107).

3. The unwinding and splicing device according to claim 1, wherein Two compression rollers (207) are provided between the two compression rollers (207), the inner side of the wallboard two (206) is provided with a slide rail three (219), the slide rail three (219) is provided with a sliding seat three (220), the two ends of the cutting knife (216) are fixedly connected to the sliding seat three (220) on the two sides, and the inner side wall of the wallboard two (206) is provided with a cylinder two (209), one end of the cylinder two (209) is fixedly connected to the wallboard two (206), and the other end is connected to one side of the cutting knife (216).

4. The unwinding and splicing device according to claim 1, wherein The two ends of the tension roller (202) are connected to the inner wall of the wallboard one (201) through a tension frame (204), the tension frame (204) is U-shaped, the two sides of the upper part of the tension frame (204) are rotatably connected to the two wallboards one (201), and the two ends of the tension roller (202) are rotatably connected to the inner frame of the tension frame (204); the inner wall of the wallboard one (201) is provided with a cylinder three (218), one end of the cylinder three (218) is rotatably connected to the wallboard one (201), and the extension end is rotatably connected to the lower part of the tension frame (204).

5. The unwinding and splicing device according to claim 1, wherein One of the rotating discs (102) is provided with a ring gear (103), and a driving motor one (104) is installed on the side plate (101) close to the ring gear (103), the output end of the driving motor one (104) is provided with a gear, and the gear is in meshing transmission with the ring gear (103); the driving motor one (104) drives the ring gear (103) to rotate, thereby driving the rotating disc (102) to rotate, and switching the material winding station.

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