Double feed device for release paper

Abstract

The utility model discloses a type paper double feeding device, including unwinding frame still includes two unwinding units, two unwinding units are arranged at the front and rear of unwinding frame respectively, and unwinding unit includes air inflation shaft, type paper conveying roller, type paper traction roller, rubber press roll, paper guide board, suction roll, cutter roll and cutting drive arrangement, and rubber press roll is matched with type paper traction roller, and both ends of paper guide board are fixedly connected with unwinding frame, and both ends of suction roll are rotatably connected with unwinding frame, a plurality of air holes are seted up on suction roll, cutter roll is provided with cutter, when cutter roll rotates to be located at one side of suction roll, and it is cut off type paper that suction roll adsorbs with suction roll cooperation, and two unwinding units are used for pasting type paper on the different gluing parts of paper passing below respectively. Set two unwinding units on unwinding frame, can carry out unwinding to two type paper rolls before and after, can paste two type papers before and after on paper simultaneously, need not subsequent manual film covering.

Description

Technical Field

[0001] This utility model relates to a release paper double feeding device, belonging to the technical field of paper bag manufacturing equipment. Background Technology

[0002] Current release liner pasting technology for flap pockets typically involves only one strip of release liner film applied to the flap opening of the paper bag, such as... Figure 8 As shown, this method is suitable for single-use food bags, but when some paper bags with special requirements need two layers of release paper, such as... Figure 9 As shown, since existing bag-making machines cannot directly paste two release papers onto the paper used to make paper bags, this type of paper bag requires manual lamination and pasting of a second release paper during manufacturing. The manual lamination method has high labor costs, and the position of the release paper is not exactly the same each time, so the consistency of the paper bag products is not very good. Summary of the Invention

[0003] The purpose of this invention is to provide a double release paper feeding device, which solves the technical defects of the existing release paper feeding device that can only stick one release paper on the tongue bag. When two release papers need to be stuck on, manual lamination is required, resulting in high manufacturing cost of the tongue bag and poor consistency of release paper sticking on the tongue bag.

[0004] To solve the above problems, the technical solution adopted by this utility model is: a release paper double unwinding device, including an unwinding frame and two unwinding units, which are respectively arranged at the front and rear of the unwinding frame. Each unwinding unit includes an air shaft, a release paper conveying roller, a release paper traction roller, a rubber pressure roller, a guide plate, a suction roller, a cutter roller, and a cutting drive device. The air shaft is rotatably mounted on the unwinding frame and is used to place the release paper roll in use. Multiple release paper conveying rollers are provided, with both ends rotatably connected to the unwinding frame for conveying the release paper. Both ends of the release paper traction rollers are also provided. The air-operated release liner is rotatably connected to the unwinding frame and driven to rotate by a traction drive motor mounted on the unwinding frame. A rubber pressure roller cooperates with a release liner traction roller. Release liner unwound from the air-expanding shaft passes over the release liner conveyor roller and then between the release liner traction roller and the rubber pressure roller, being conveyed by the release liner traction roller. Both ends of the guide plate are fixedly connected to the unwinding frame. Both ends of the suction roller are rotatably connected to the unwinding frame. The suction roller has multiple air holes, one end of which is connected to an air pipe via a rotary joint for drawing air from or blowing air into the air holes. Both ends of the cutter roller are rotatably connected to the unwinding frame. The device is equipped with a cutter that rotates synchronously with the cutter roller. A cutting drive device drives the cutter roller and the suction roller to rotate. When the cutter roller rotates to the side of the suction roller, it cooperates with the suction roller to cut the release paper adsorbed by the suction roller. The rotation of the suction roller is used to adhere the release paper it has adsorbed to the glued part of the paper conveyed below for making paper bags. Two unwinding units are used to adhere the release paper to different glued parts of the paper passing below. This utility model has two unwinding units on the unwinding frame, which can unwind two rolls of release paper, front and back. Therefore, when the paper for making flap bags is conveyed below the unwinding device after being glued, two rolls of release paper can be adhered to the paper at the same time, eliminating the need for subsequent manual lamination, reducing the manufacturing cost of flap bags. Furthermore, since the positions of the two unwinding units on the unwinding frame are fixed, the placement of the release paper on the paper is more precise, improving the consistency of the release paper adhesion on the flap bags.

[0005] As a further improvement of this utility model, the unwinding unit also includes a paper-pressing strip fixing rod and paper-pressing strips. Both ends of the paper-pressing strip fixing rod are fixedly connected to the unwinding frame. Multiple paper-pressing strips are spaced apart along the length of the paper-pressing strip fixing rod, with one end fixedly connected to the fixing rod and the other end bent to press against the guide plate. This presses the release paper, which has passed through the release paper traction roller and the rubber pressure roller, onto the guide plate for continued conveying. This utility model, by setting paper-pressing strips, presses the paper firmly onto the guide plate during use, ensuring the release paper is in a horizontal state during conveying and guaranteeing the flatness of subsequent release paper adhesion.

[0006] As a further improvement of this utility model, a sliding block is slidably arranged on each of the left and right sides of the front part of the unwinding frame. The sliding block is located above the release paper traction roller and can slide vertically relative to the unwinding frame. The two ends of the rubber pressure roller of the unwinding unit installed at the front of the unwinding frame are rotatably connected to the two sliding blocks respectively. The sliding blocks slide up and down to adjust the distance between the rubber pressure roller and the release paper traction roller. A swing arm is rotatably arranged on each of the left and right sides of the rear part of the unwinding frame. The swing arm can swing up and down relative to the unwinding frame. The two ends of the rubber pressure roller of the unwinding unit installed at the rear of the unwinding frame are rotatably connected to the two swing arms respectively, and the rubber pressure roller is located below the release paper traction roller. The swing arm swings to adjust the distance between the rubber pressure roller and the release paper traction roller. In this utility model, the distance between the rubber pressure roller and the release paper traction roller can be adjusted relative to the release paper traction roller. When changing the release paper roll, the distance between the rubber pressure roller and the release paper traction roller is increased to facilitate the end of the release paper passing between the rubber pressure roller and the release paper traction roller, thereby facilitating the change of the release paper roll.

[0007] As a further improvement of this utility model, the guide plate is located between the release paper traction roller and the suction roller, and both ends of the guide plate are inclined downwards. In this utility model, the two ends of the guide plate are inclined downwards to avoid the edges of the guide plate from scratching the release paper during the release paper conveying process.

[0008] As a further improvement of this utility model, it also includes a frame component, a frame drive component, and an eccentric rubber roller. The unwinding frame is disposed on the frame component and forms a horizontal moving pair with the frame component. The frame drive component is disposed on the frame component and connected to the unwinding frame, and is used to drive the unwinding frame to move left and right on the frame component. There are two eccentric rubber rollers, which are respectively located below the suction roller. The two ends of the eccentric rubber rollers are rotatably connected to the frame component and are connected to an eccentric drive device. When the paper is conveyed to the eccentric rubber roller at the glue coating part, the eccentric drive device drives the eccentric rubber roller to rotate and push the paper upward to adhere to the release paper adsorbed by the suction roller. This invention features a frame component that transports paper for making tongue-shaped bags. The unwinding frame is mounted on this component, allowing adjustment of the unwinding unit based on the area where release paper will be applied. The eccentric rubber roller in this invention adjusts the vertical position of the paper as it rotates, lifting it upwards when the paper is transported to the unwinding unit at the glue application point, enabling the unwinding unit to adhere the release paper to the paper. At other times, the paper's height is below the suction roller, preventing interference with normal paper transport.

[0009] As a further improvement of this utility model, it also includes a swing rod, one end of which is fixedly connected to the eccentric rubber roller. The eccentric driving device is a drive cylinder, the cylinder body of which is rotatably connected to the frame component. The piston rod of the drive cylinder is rotatably connected to the other end of the swing rod. The extension and retraction of the piston rod of the drive cylinder drives the eccentric rubber roller to rotate through the swing rod. This utility model drives the swing rod to swing through the extension and retraction of the piston rod of the drive cylinder, thereby rotating the eccentric rubber roller. The eccentric setting of the eccentric rubber roller allows the paper to be adjusted up and down. The overall structure is simple.

[0010] As a further improvement of this utility model, it also includes a gluing component, which is located at the rear of the frame component and is used to apply glue to the paper. The gluing component includes an upper gluing unit and a lower gluing unit, each of which includes a gluing support rod and a glue spraying device. The two ends of the gluing support rod are rotatably connected to the frame component and are driven to rotate by a gluing drive device. The glue spraying device is mounted on the gluing support rod and rotates with the rotation of the gluing support rod. When the glue spraying device rotates to the paper, it applies glue to the paper. This utility model, by providing a gluing component, can achieve the function of applying glue to the paper. The upper and lower gluing units in this utility model can apply two strips of glue to the paper to correspondingly attach two release sheets.

[0011] As a further improvement of this utility model, a limiting rod is provided at the end of the glue application support rod away from the glue application drive device. The limiting rod is fixedly connected to the glue application support rod and rotates synchronously with the glue application support rod. A limiting block is fixed on the frame component. The limiting block cooperates with the limiting rod to limit the rotation of the glue spraying device. This utility model sets the limiting rod and the limiting block to limit the rotation of the glue application support rod, avoiding excessive rotation angle of the glue spraying device, which could affect the paper feeding or result in uneven glue application on the paper.

[0012] As a further improvement of this utility model, an adhesive application guide rail is fixed on the adhesive application support rod, and an adhesive application slider is provided on the adhesive application guide rail. The adhesive application slider slides relative to the adhesive application guide rail to adjust the position of the adhesive spraying device. This utility model, by setting up the adhesive application guide rail and the adhesive application slider, allows the position of the adhesive application device to be adjusted as needed.

[0013] As a further improvement of this invention, the adhesive application component also includes a connecting rod. Each end of the connecting rod is fixedly connected to the adhesive application support rod by a fixing block. A connecting block is provided on the adhesive application slider, and the connecting rod passes through this connecting block. While the adhesive application slider slides on the adhesive application guide rail, the connecting block moves on the connecting rod. This invention, by incorporating the connecting rod, makes the horizontal adjustment of the adhesive application device more stable.

[0014] In summary, the beneficial effects of this utility model are as follows: This utility model is equipped with two unwinding units, which can place two release paper rolls to unwind the release paper, thereby pasting two release papers onto the paper to make the tongue pocket without the need for subsequent manual lamination, reducing the labor cost of tongue pocket manufacturing, and improving the consistency of pasting the two release papers on the tongue pocket. Attached Figure Description

[0015] Figure 1 This is a longitudinal sectional view of the present invention excluding the frame components.

[0016] Figure 2 This is the front view of this utility model.

[0017] Figure 3 This is a longitudinal sectional view of the present invention.

[0018] Figure 4 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 5 This is a three-dimensional structural diagram of the frame component in this utility model.

[0020] Figure 6 This is a three-dimensional structural diagram of the frame component in this utility model from another angle.

[0021] Figure 7 This is a three-dimensional structural diagram reflecting the adhesive application component in this utility model.

[0022] Figure 8 This is a schematic diagram of a tongue pocket with only one release paper strip.

[0023] Figure 9 This is a schematic diagram of a flap pocket with two release liner strips.

[0024] Figure 10 This is a cross-sectional view of the eccentric rubber roller in this utility model.

[0025] The components include: 1. Unwinding frame; 101. Unwinding wall panel; 102. Upper fixed plate; 103. Lower fixed plate; 104. Front unwinding arm; 105. Rear unwinding arm; 106. Front fixed connecting rod; 107. Rear fixed connecting rod; 2. Unwinding unit; 3. Air shaft; 4. Release paper roll; 5. Release paper conveying roller; 6. Release paper traction roller; 7. Traction drive motor; 8. Rubber pressure roller; 9. Guide plate; 10. Suction roller; 11. Cutter roller; 12. Cutter; 13. Cutting drive device; 14. Paper; 15. Paper pressing strip fixing rod; 16. Paper pressing strip; 17. Sliding block; 18. Swing rod; 19. Frame components; 191. Frame wall panel; 192. Frame connecting rod; 193. Front 194. Rear frame guide rail; 195. Front frame slider; 196. Rear frame slider; 197. Paper traction roller; 20. Frame drive unit; 201. Drive sleeve; 202. Drive screw; 203. Handwheel; 21. Eccentric rubber roller; 211. Mandrel; 212. Rubber sleeve; 213. Connecting end plate; 22. Eccentric drive device; 23. Swing rod; 24. Glue application unit; 25. Upper glue application unit; 26. Lower glue application unit; 27. Glue application support rod; 28. Glue spraying device; 29. ​​Glue application drive device; 30. Limiting rod; 31. Limiting block; 32. Glue application guide rail; 33. Glue application slider; 34. Connecting rod; 35. Fixing block; 36. Connecting block. Detailed Implementation

[0026] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Example 1

[0027] like Figure 1 The release paper double unwinding device shown includes an unwinding frame 1 and two unwinding units 2. The two unwinding units 2 are respectively located at the front and rear of the unwinding frame 1. The unwinding unit 2 includes an air shaft 3, a release paper conveying roller 5, a release paper traction roller 6, a rubber pressure roller 8, a guide plate 9, an air suction roller 10, a cutter roller 11, and a cutting drive device 13.

[0028] like Figure 4 As shown, the unwinding frame 1 includes two parallel unwinding wall plates 101, two upper fixing plates 102, two lower fixing plates 103, two front unwinding arms 104, and two rear unwinding arms 105. The two upper fixing plates 102 are connected to the two unwinding wall plates 101 from the upper front and upper rear, respectively. The two lower fixing plates 103 are connected to the two unwinding wall plates 101 from the lower front and lower rear, respectively. The two front unwinding arms 104 are fixedly connected to the front of the top of the two unwinding wall plates 101, respectively. The two rear unwinding arms 105 are fixedly connected to the rear of the top of the two unwinding wall plates 101, respectively.

[0029] like Figure 1As shown, the air shaft 3 is rotatably mounted on the unwinding frame 1 and is used to place the release paper roll 4 in the use state. In this embodiment, two front mounting slots are correspondingly opened on the two front unwinding arms 104 and two rear mounting slots are correspondingly opened on the two rear unwinding arms 105. The two ends of the air shaft 3 of the front unwinding unit 2 are respectively set in the two front mounting slots, and the two ends of the air shaft 3 of the rear unwinding unit 2 are respectively set in the two rear mounting slots. In use, the release paper roll 4 is first placed on the air shaft 3, and then the air shaft 3 is installed in the corresponding front mounting slot and rear mounting slot.

[0030] like Figures 1 to 3 As shown, each unwinding unit 2 has multiple release paper conveying rollers 5, and the two ends of the release paper conveying rollers 5 are rotatably connected to the two unwinding wall plates 101 of the unwinding frame 1, respectively. The release paper passes around the release paper conveying rollers 5 and is conveyed by the release paper conveying rollers 5.

[0031] like Figure 4 As shown, in this embodiment, the two ends of the release paper traction roller 6 are respectively connected to the two feeding wall plates 101 of the unwinding frame 1, and are driven to rotate by a traction drive motor 7 installed on one of the feeding wall plates 101 of the unwinding frame 1. A reducer is installed on the feeding wall plate 101, and the output shaft of the reducer is connected to the release paper traction roller 6. The traction drive motor 7 is installed on the reducer, and the output shaft of the traction drive motor 7 is connected to the input shaft of the reducer.

[0032] like Figures 1 to 3 As shown, in this embodiment, the rubber pressure roller 8 and the release paper traction roller 6 are arranged in parallel and cooperate with each other. The two ends of the rubber pressure roller 8 are rotatably connected to the two unwinding wall plates 101 of the unwinding frame 1, respectively. After the release paper unwound from the release paper roll 4 on the air expansion shaft 3 passes around the release paper conveying roller 5, it passes between the release paper traction roller 6 and the rubber pressure roller 8. The rubber pressure roller 8 presses the release paper onto the release paper traction roller 6 to increase the friction between the release paper and the release paper traction roller 6, thereby driving the conveying by the release paper traction roller 6.

[0033] like Figure 1 As shown, in this embodiment, both ends of the guide plate 9 are fixedly connected to the unwinding frame 1. In this embodiment, a guide plate support rod is fixedly connected between the two unwinding wall plates 101. The lower surface of the guide plate 9 is fixed on the guide plate support rod to fix the guide plate. The guide plate 9 is located between the release paper traction roller 6 and the suction roller 10, and both ends of the guide plate 9 are inclined downwards.

[0034] like Figure 1 and Figure 3As shown, the two ends of the suction roller 10 are rotatably connected to the unwinding frame 1. The suction roller 10 has multiple air holes, and one end of it is connected to an air pipe through a rotary joint for sucking air from the air holes or blowing air into the air holes. In this embodiment, the suction roller 10 has a central hole along the axial direction. One end of the central hole is closed. The air holes are on one side of the suction roller 10 and are opened along the radial direction of the suction roller 10. The rotary joint is located at one end of the opening of the central hole.

[0035] like Figure 1 As shown, in this embodiment, both ends of the cutter roller 11 are rotatably connected to the unwinding frame 1. A cutter 12 is detachably mounted on the cutter roller 11. The length direction of the cutter 12 is the same as the length direction of the cutter roller 11. The cutter 12 rotates synchronously with the rotation of the cutter roller 11. In this embodiment, a cutter mounting protrusion is provided on the cutter roller 11 along its length direction. The cutter 12 is disposed on the cutter mounting protrusion. One surface of the cutter 12 is in contact with the cutter mounting protrusion. A cutter pressure plate is provided on the side surface of the cutter 12 away from the cutter mounting protrusion. Multiple cutter clamping bolts that pass through the cutter pressure plate and the cutter 12 and are threadedly engaged with the cutter mounting protrusion are used to detachably mount the cutter 12 on the cutter mounting protrusion.

[0036] In this embodiment, the cutting drive device 13 drives the cutter roller 11 and the suction roller 10 to rotate. When the cutter roller 11 rotates to the side of the suction roller 10, it cooperates with the suction roller 10 to cut the release paper adsorbed by the suction roller 10. The suction roller 10 rotates to stick the release paper it has sucked onto the glued part of the paper 14 for making paper bags that is conveyed below it. The two unwinding units 2 are respectively used to stick the release paper onto different glued parts of the paper 14 that passes below them. In this embodiment, a cutting drive device 13 simultaneously drives the cutting roller 11 and the suction roller 10 to rotate. The specific structure is as follows: a driving gear and a driven gear are respectively provided at the end of the cutting roller 11 and the end of the suction roller 10. The driving gear and the driven gear mesh with each other. The cutting drive device 13 is a cutting drive motor. In this embodiment, a reducer is detachably mounted on one of the feeding wall plates 101 with bolts. The output shaft of the reducer is connected to the end of the cutting roller 11. The cutting drive motor is mounted on the reducer with bolts. The output shaft of the cutting drive motor is connected to the input shaft of the reducer. When the cutting drive motor drives the cutting roller 11 to rotate, the meshing of the driving gear and the driven gear drives the suction roller 10 to rotate synchronously. The rotation directions of the cutting roller 11 and the suction roller 10 are opposite. In this embodiment, the diameter and number of teeth of the driving gear and the driven gear are equal. Thus, when the cutting roller 11 rotates one revolution, the suction roller 10 also rotates one revolution, so that the length of the release paper cut by the cutter 12 is equal each time. Example 2

[0037] This embodiment is a further improvement on Embodiment 1. Compared to Embodiment 1, as follows: Figure 1 As shown, the unwinding unit 2 in this embodiment is provided with a paper pressing strip fixing rod 15 and a paper pressing strip 16. The cross-sectional shape of the paper pressing strip fixing rod 15 is rectangular, and its two ends are respectively fixedly connected to the two unwinding wall plates 101 of the unwinding frame 1. In this way, while fixing the paper pressing strip 16, it also enhances the stability of the unwinding frame 1. In this embodiment, there are multiple paper pressing strips 16, which are equally spaced along the length direction of the paper pressing strip fixing rod 15. One end of the paper pressing strip 16 is fixedly connected to the paper pressing strip fixing rod 15, and the other end of the paper pressing strip 16 is bent to press it onto the guide plate 9, pressing the release paper that has passed through the release paper traction roller 6 and the rubber pressure roller 8 onto the guide plate 9 for continued conveying.

[0038] like Figure 1 As shown, in this embodiment, the lower part of the pressure strip 16 in the unwinding unit 2 located at the front of the unwinding frame 1 bends backward and presses against the guide plate 9. The portion of the pressure strip 16 on the guide plate 9 is horizontal. The pressure strip 16 in the unwinding unit 2 located at the rear of the unwinding frame 1 first extends forward, then bends downward into an arc shape, and then bends backward and presses against the guide plate 9, making the pressure strip 16 generally C-shaped, and the portion of the pressure strip 16 on the guide plate 9 is horizontal. This embodiment uses the pressure strip 16 to make the conveying of the release paper after unwinding more stable. The structure of the remaining parts in this embodiment is the same as in Embodiment 1; please refer to Embodiment 1 for details, which will not be described in detail here. Example 3

[0039] This embodiment is a further improvement based on Embodiment 2. Compared with Embodiment 2, as follows: Figure 1 As shown, in this embodiment, a sliding block 17 is slidably arranged on each of the left and right sides of the front part of the unwinding frame 1. The sliding block 17 is located above the release paper traction roller 6. In this embodiment, a vertical sliding groove is provided on each of the two unwinding wall plates 101 along the vertical direction. A sliding guide rail is provided on each of the front and rear sides of the sliding groove. A guide rail groove is opened on each of the front and rear sides of the sliding block 17 along the vertical direction. The sliding guide rail is located in the guide rail groove. The sliding block 17 slides relative to the sliding guide rail, so that the sliding block 17 slides vertically in the sliding groove. The two ends of the rubber pressure roller 8 of the unwinding unit 2 installed at the front of the unwinding frame 1 are... The sliding block 17 is rotatably connected to the two sliding blocks 17. The sliding blocks 17 slide up and down to adjust the distance between the rubber pressure roller 8 and the release paper traction roller 6. In this embodiment, a connecting crossbar is detachably installed on the top of the sliding groove with bolts. A screw is provided on the connecting crossbar, which runs through it and is threaded with it. The bottom end of the screw is rotatably connected to the sliding block 17. By rotating the screw, the sliding block 17 moves up and down, thereby adjusting the distance between the rubber pressure roller 8 and the release paper traction roller 6. In this embodiment, the upper surface of the guide plate 9, the top of the release paper traction roller 6, and the top of the suction roller 10 are located on the same horizontal plane.

[0040] like Figure 1 As shown, a swing arm 18 is rotatably mounted on each of the left and right feeding wall plates 101 at the rear of the unwinding frame 1. The swing arm 18 can swing up and down relative to the unwinding frame 1. The two ends of the rubber pressure roller 8 of the unwinding unit 2 installed at the rear of the unwinding frame 1 are rotatably connected to the two swing arms 18 respectively. The rubber pressure roller 8 is located below the release paper traction roller 6. The swing arm 18 swings to adjust the distance between the rubber pressure roller 8 and the release paper traction roller 6. In this embodiment, a swing cylinder is installed on one of the feeding wall plates 101. The cylinder body of the swing cylinder is rotatably connected to the feeding wall plate 101. The piston rod of the swing cylinder is rotatably connected to the swing arm 18. The extension and retraction of the piston rod of the swing cylinder is used to push the swing arm 18 to swing, thereby adjusting the position of the rubber pressure roller 8 so that it cooperates with the release paper traction roller 6. The upper surface of the guide plate 9, the bottom of the release paper traction roller 6, and the top of the suction roller 10 are located on the same horizontal plane. The structure of the remaining parts in this embodiment is the same as that in Embodiment 2. For details, please refer to Embodiment 2. This embodiment will not be described in detail. Example 4

[0041] This embodiment is a further improvement on embodiment 3. Compared with embodiment 3, this embodiment includes a frame component 19, a frame drive component 20, and an eccentric rubber roller 21, as follows: Figures 2 to 4 As shown, the unwinding frame 1 is disposed on the frame component 19 and forms a horizontal moving pair with the frame component 19. By moving the unwinding frame 1 on the frame component 19, this embodiment can adjust the part of the release paper to be pasted in the left and right directions of the paper.

[0042] like Figure 5 and Figure 6As shown, the frame component 19 in this embodiment includes two parallel frame wall plates 191, multiple frame connecting rods 192 connecting the two frame wall plates 191, and multiple paper traction rollers 197 whose two ends are rotatably connected to the two frame wall plates 191 respectively. A front frame guide rail 193 is provided at the front of the two frame wall plates 191, and a rear frame guide rail 194 is provided at the rear of the two frame wall plates 191. The front frame guide rail 193 and the rear frame guide rail 194 are parallel and both are arranged in the left-right direction. Multiple front frame sliders 195 are slidably arranged on the front frame guide rail 193, and the rear frame guide rail 194... Multiple rear frame sliders 196 are slidably mounted on the upper part. A front fixed connecting rod 106 is fixedly connected to the front end of the two feeding wall plates 101, and a rear fixed connecting rod 107 is fixed to the rear end of the two feeding wall plates 101. The front frame slider 195 is detachably mounted on the front fixed connecting rod 106 with bolts, and the rear frame slider 196 is detachably mounted on the rear fixed connecting rod 107 with bolts. By sliding the front frame slider 195 on the front frame guide rail 193 and the rear frame slider 196 on the rear frame guide rail 194, the unwinding frame 1 can slide in the left and right direction on the frame component 19.

[0043] like Figures 2 to 4 As shown, the frame drive component 20 is disposed on the frame component 19 and connected to the unwinding frame 1, and is used to drive the unwinding frame 1 to move left and right on the frame component 19. In this embodiment, the frame drive component 20 includes a drive sleeve 201, a drive screw 202 and a handwheel 203. The drive sleeve 201 is provided with an internal thread and is rotatably disposed on one of the frame wall plates 191. The handwheel 203 is fixed on the end of the drive sleeve 201 away from the other frame wall plate 191. The handwheel 203 is used to rotate the drive sleeve 201. One end of the drive screw 202 is fixedly connected to the unwinding wall plate 101 near the side of the drive sleeve 201. The drive screw 202 extends into the drive sleeve 201 and is threadedly engaged with the drive sleeve 201. The rotation of the drive sleeve 201 is used to convert its rotation into the linear motion of the drive screw 202, thereby driving the unwinding frame 1 to slide on the frame component 19.

[0044] like Figure 3 As shown, in this embodiment, there are two eccentric rubber rollers 21. The two eccentric rubber rollers 21 are located below the suction roller 10. Both ends of the eccentric rubber rollers 21 are rotatably connected to the frame component 19 and are connected to an eccentric drive device 22. When the paper 14 is conveyed to the glued area of ​​the eccentric rubber roller 21, the eccentric drive device 22 drives the eccentric rubber roller 21 to rotate, pushing the paper 14 upwards to adhere it to the release paper adsorbed by the suction roller 10. Figure 10As shown, the eccentric rubber roller 21 in this embodiment includes a spindle 211, a rubber sleeve 212, and two circular connecting end plates 213. The rubber sleeve 212 is sleeved on the spindle 211, and each end of the rubber sleeve 212 is fixed to the spindle 211 by a connecting end plate 213. The connecting end plates 213 are eccentrically set with the spindle, thereby making the rubber sleeve 212 eccentrically set on the spindle 211. In order to facilitate the rotation of the eccentric rubber roller 21, this embodiment is provided with a swing rod 23. One end of the swing rod 23 is fixedly connected to the end of the spindle 211 of the eccentric rubber roller 21. The eccentric driving device 22 in this embodiment is a driving cylinder. The cylinder body of the driving cylinder is rotatably connected to the frame wall plate 191 on the side of the frame component 19 away from the handwheel 203. The piston rod of the driving cylinder is rotatably connected to the other end of the swing rod 23. The extension and retraction of the piston rod of the driving cylinder drives the eccentric rubber roller 21 to rotate through the swing rod 23. The structure of the remaining parts in this embodiment is the same as that in Embodiment 3. For details, please refer to Embodiment 3. This embodiment will not be described in detail. Example 5

[0045] This embodiment is a further improvement on embodiment 4. Compared with embodiment 4, this embodiment also includes an adhesive application component 24, such as... Figure 4 As shown, the gluing component 24 is located at the rear of the frame component 19 and is used to apply glue to the paper 14. The gluing component 24 includes an upper gluing unit 25 and a lower gluing unit 26. The upper gluing unit 25 is located above the lower gluing unit 26. Both the upper gluing unit 25 and the lower gluing unit 26 include a gluing support rod 27 and a glue spraying device 28. The two ends of the gluing support rod 27 are rotatably connected to the rear of the two frame wall plates 191 of the frame component 19 and are driven to rotate by the gluing drive device 29. The glue spraying device 28 is mounted on the gluing support rod 27 and flips as the gluing support rod 27 rotates. The glue spraying device 28 flips to the paper 14 and applies glue to the paper 14. The glue spraying device 28 is directed away from the paper. When the direction of 14 is reversed, the glue spraying stops. The glue spraying device 28 in this embodiment is prior art and will not be described in detail in this embodiment. The glue application drive device 29 in this embodiment is also a cylinder. The piston rod of the cylinder is rotatably connected to one of the frame wall panels 191. The piston rod of the cylinder is rotatably connected to a glue spraying swing rod 291. The other end of the glue spraying swing rod 291 is fixedly connected to the glue application support rod 27. In this embodiment, the middle part of the glue application support rod 27 has a rectangular longitudinal section, and the longitudinal sections at both ends are circular. Each end of the glue application support rod 27 is provided with a bearing seat 271. The bearing seat 271 is detachably installed with the frame wall panel 191 by bolts, so that the glue application support rod 27 is rotatably installed on the frame component 19.

[0046] like Figure 7As shown, in this embodiment, a limiting rod 30 is provided at the end of the glue application support rod 27 away from the glue application drive device 29. The limiting rod 30 is perpendicular to and fixedly connected to the glue application support rod 27. The limiting rod 30 rotates synchronously with the glue application support rod 27. A limiting block 31 is fixed on the frame wall plate 191 on the side of the frame component 19 away from the glue spray swing rod 291. The limiting block 31 cooperates with the limiting rod 30 to limit the flipping of the glue spraying device 28. When the glue application support rod 27 swings to the point where the limiting rod 30 stops the limiting block 31, the glue application drive device 29 cannot drive the glue application support rod 27 to continue swinging towards the paper 14, thus avoiding direct contact between the glue spraying device 28 and the paper 14.

[0047] like Figure 7 As shown, in this embodiment, an adhesive application guide rail 32 is fixed to the rectangular section in the middle of the adhesive application support rod 27. An adhesive application slider 33 is mounted on the adhesive application guide rail 32 and slides relative to it to adjust the position of the adhesive spraying device 28. To make the movement of the adhesive spraying device 28 smoother, the adhesive application component 24 in this embodiment is also equipped with a connecting rod 34. Each end of the connecting rod 34 is fixedly connected to the circular sections at both ends of the adhesive application support rod 27 using a fixing block 35. A connecting block 36 is detachably mounted on the adhesive application slider 33 using bolts. The connecting rod 34 passes through the connecting block 36, allowing the connecting block 36 to slide on the connecting rod 34. While the adhesive application slider 33 slides on the adhesive application guide rail 32, the connecting block 36 moves on the connecting rod 34. The structure of the remaining parts in this embodiment is the same as in Embodiment 4; please refer to Embodiment 4 for details, which will not be described in detail here.

[0048] Unless otherwise specified in the above description, all parts are prior art or can be implemented using existing technology. Furthermore, the specific embodiments described in this utility model are merely preferred embodiments and are not intended to limit the scope of this utility model. That is, all equivalent changes and modifications made within the scope of this utility model patent should be considered within the technical scope of this utility model.

Claims

1. A double dispensing apparatus for release paper comprising a dispensing frame, characterized in that: It also includes two unwinding units, which are respectively located at the front and rear of the unwinding frame. The unwinding units include... An air shaft, which is rotatably mounted on the unwinding frame, is used to place the release paper roll in the use state; Release paper conveying rollers, there are multiple release paper conveying rollers, and both ends are rotatably connected to the unwinding frame, used to convey release paper; Release paper traction roller, both ends of the release paper traction roller are rotatably connected to the unwinding frame, and are driven to rotate by a traction drive motor mounted on the unwinding frame; The rubber pressure roller works in conjunction with the release paper traction roller. The release paper unwound from the release paper roll on the air expansion shaft passes around the release paper conveying roller and then passes between the release paper traction roller and the rubber pressure roller, and is driven to be conveyed by the release paper traction roller. The guide plate is fixedly connected to the unwinding frame at both ends; The suction roller has two ends that are rotatably connected to the unwinding frame. The suction roller has multiple air holes, and one end of it is connected to an air pipe through a rotary joint for sucking air from the air holes or blowing air into the air holes. The cutter roller has two ends that are rotatably connected to the unwinding frame, and cutters are mounted on it. The cutters rotate synchronously with the rotation of the cutter roller. A cutting drive device drives the cutter roller and the suction roller to rotate. When the cutter roller rotates to the side of the suction roller, it cooperates with the suction roller to cut the release paper adsorbed by the suction roller. The suction roller rotates to stick the release paper it has sucked onto the glued part of the paper conveyed below for making paper bags. Two unwinding units are used to stick the release paper onto different glued parts of the paper passing below them.

2. The double dispensing of release paper apparatus of claim 1, wherein: The unwinding unit also includes The paper pressing strip fixing rod has its two ends fixedly connected to the unwinding frame; There are multiple paper pressing strips, which are spaced apart along the length of the paper pressing strip fixing rod. One end of each strip is fixedly connected to the fixing rod, and the other end is bent to press against the guide plate. This presses the release paper that has passed through the release paper traction roller and the rubber pressure roller onto the guide plate for continued conveying.

3. The release paper double feeding device according to claim 1, characterized in that: A sliding block is slidably installed on each of the left and right sides of the front part of the unwinding frame. The sliding block is located above the release paper traction roller. The sliding block can slide vertically relative to the unwinding frame. The two ends of the rubber pressure roller of the unwinding unit installed at the front of the unwinding frame are rotatably connected to the two sliding blocks respectively. The sliding blocks slide up and down to adjust the distance between the rubber pressure roller and the release paper traction roller. A swing arm is rotatably installed on each of the left and right sides of the rear of the unwinding frame. The swing arm can swing up and down relative to the unwinding frame. The two ends of the rubber pressure roller of the unwinding unit installed at the rear of the unwinding frame are rotatably connected to the two swing arms respectively. The rubber pressure roller is located below the release paper traction roller. The swing arm swing is used to adjust the distance between the rubber pressure roller and the release paper traction roller.

4. The release paper double feeding device according to claim 1, characterized in that: The guide plate is located between the release paper traction roller and the suction roller, and both ends of the guide plate are inclined downwards.

5. The double dispensing of release paper apparatus of claim 1, wherein: Also includes The frame component includes an unwinding frame mounted on it, which together form a horizontal moving pair. A frame drive unit is disposed on the frame component and connected to the unwinding frame, and is used to drive the unwinding frame to move left and right on the frame component; There are two eccentric rubber rollers, each located below the suction roller. Both ends of the eccentric rubber rollers are rotatably connected to the frame components and are connected to an eccentric drive device. When the paper is conveyed to the eccentric rubber roller at the glue coating area, the eccentric drive device drives the eccentric rubber roller to rotate, pushing the paper upward to adhere to the release paper adsorbed by the suction roller.

6. The dual release liner device of claim 5, wherein: Also includes The swing arm has one end fixedly connected to the eccentric rubber roller. The eccentric drive device is a drive cylinder. The cylinder body of the drive cylinder is rotatably connected to the frame component. The piston rod of the drive cylinder is rotatably connected to the other end of the swing arm. The extension and retraction of the piston rod of the drive cylinder drives the eccentric rubber roller to rotate through the swing arm.

7. The dual release liner dispenser of claim 5, wherein: It also includes a gluing component, which is located at the rear of the frame component and is used to apply glue to the paper. The gluing component includes an upper gluing unit and a lower gluing unit. Both the upper and lower gluing units include a gluing support rod and a glue spraying device. The two ends of the gluing support rod are rotatably connected to the frame component and are driven to rotate by the gluing drive device. The glue spraying device is mounted on the gluing support rod and flips as the gluing support rod rotates. The glue spraying device flips to the paper and applies glue to the paper.

8. The double dispensing of release paper apparatus of claim 7, wherein: A limit rod is provided at the end of the glue application support rod away from the glue application drive device. The limit rod is fixedly connected to the glue application support rod and rotates synchronously with the glue application support rod. A limit block is fixed on the frame component. The limit block and the limit rod cooperate to limit the flipping of the glue spraying device.

9. The double dispensing of release paper apparatus of claim 7, wherein: A glue application guide rail is fixed on the glue application support rod, and a glue application slider is provided on the glue application guide rail. The glue application slider slides relative to the glue application guide rail to adjust the position of the glue spraying device.

10. The double dispensing of release paper apparatus of claim 9, wherein: The adhesive application component also includes a connecting rod. Each end of the connecting rod is fixedly connected to the adhesive application support rod by a fixing block. The adhesive application slider is provided with a connecting block, and the connecting rod passes through the connecting block. While the adhesive application slider slides on the adhesive application guide rail, the connecting block moves on the connecting rod.

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