Empty paper tape releasing and pressing device

Abstract

The utility model belongs to the field of transformer production, and relates to an empty paper tape releasing and pressing device, an empty paper tape tensioning mechanism comprises an installation bottom plate located above an empty paper tape releasing mechanism, a third-level guide wheel, a second-level guide wheel and a first-level guide wheel are installed on the installation bottom plate from top to bottom, and an electromagnetic damping wheel is tightly attached to the third-level guide wheel and the second-level guide wheel. The fourth-stage guide wheel and the fifth-stage guide wheel are horizontally arranged and are higher than the third-stage guide wheel, an empty paper tape pressing mechanism is installed below the fifth-stage guide wheel and comprises a servo motor and a pressing roller set, the pressing roller set is adjacent to the periphery of the electric rotary disc and shares the same circle center with the electric rotary disc, and the electric rotary disc is installed on the installation frame and rotates anticlockwise. According to the utility model, the empty paper tape releasing mechanism, the empty paper tape tensioning mechanism and the five-stage guide wheel are arranged, so that the automatic release of the empty paper tape is realized; through the arrangement of the compression roller set, the empty paper tape and the paper cushion block located on the periphery of the electric rotating disc and sprayed with glue on the upper surface are compressed, and the paper cushion block is automatically bonded to the empty paper tape.

Description

Technical Field

[0001] This utility model belongs to the field of transformer manufacturing technology, specifically relating to an empty paper tape release and clamping device, which is applied to a fully automatic high-speed bonding system for coil oil passage gaskets. Background Technology

[0002] The production of coil oil channel spacers requires attaching paper spacers at certain intervals to blank paper tape, and then hot-pressing and winding the paper tape with attached paper spacers into a roll. The finished coil oil channel spacers can be used inside transformer coils.

[0003] Currently, the paper pads are mainly attached to the blank paper strips manually. Workers in the coil oil channel pad production workshop have long working hours, monotonous and repetitive work, low efficiency, and poor working environment. Furthermore, it is difficult to accurately control the bonding direction of the paper pads and the spacing between adjacent paper pads, which affects the product quality of the coil oil channel pads.

[0004] Therefore, there is an urgent need to design a fully automatic high-speed bonding system for coil oil channel pads, which can automatically bond paper pads to paper tapes, and automatically heat-press the semi-finished coil oil channel pads after the bonding process is completed and wind them into coil oil channel pads, thus forming an automated production line for coil oil channel pads.

[0005] One of the main technical challenges in designing a coil oil channel pad production line is how to automatically release the empty paper tape and press the paper pad block against the empty paper tape during the bonding process. Currently, there is no dedicated empty paper tape release and pressing device. Summary of the Invention

[0006] To solve the above-mentioned technical problems, this utility model provides an empty paper tape release and clamping device. The technical solution adopted by this utility model is as follows:

[0007] An empty paper tape release and clamping device includes an empty paper tape release mechanism, an empty paper tape tensioning mechanism, and several sets of empty paper tape clamping mechanisms mounted on a mounting frame. The mounting frame is a cubic frame. The empty paper tape tensioning mechanism includes a mounting base plate located above the empty paper tape release mechanism. Three guide wheel mounting seats are welded to the mounting base plate from top to bottom. A third-stage guide wheel, a second-stage guide wheel, and a first-stage guide wheel are sequentially rotatably mounted on the guide wheel mounting seats from top to bottom. An electromagnetic damping wheel is mounted on the mounting base plate, located outside the third-stage and second-stage guide wheels, and closely attached to them. Fourth-stage and fifth-stage guide wheels are mounted on the mounting frame via guide wheel mounting seats. The first-stage guide rollers are horizontally arranged and higher than the third-stage guide rollers. A paper tape pressing mechanism is installed below the fifth-stage guide rollers. This mechanism includes a servo motor and a pressure roller assembly. The pressure roller assembly includes a pressure roller assembly housing, a drive roller, a transmission belt, and several driven rollers. The servo motor and the pressure roller assembly housing are mounted on a mounting frame. The drive roller, transmission belt, and driven rollers are located inside the pressure roller assembly housing. The drive roller and driven rollers are rotatably connected to both sides of the pressure roller assembly housing. The output shaft of the servo motor is connected to the drive roller. The drive roller and driven rollers are connected via a transmission belt. The drive roller and driven rollers are arc-shaped and adjacent to the outer periphery of the electric turntable, sharing the same center. The electric turntable is mounted on the mounting frame and rotates counterclockwise.

[0008] Preferably, a hot pressing mechanism and a photoelectric switch are arranged from top to bottom on the mounting base plate between the secondary guide wheel and the primary guide wheel.

[0009] Preferably, the hot pressing mechanism includes an upper hot pressing plate, a lower hot pressing plate, and support plates on both sides, with clamping bolts threaded onto the upper hot pressing plate.

[0010] Preferably, the upper and lower hot press plates are constant-temperature silicone rubber heating plates.

[0011] Preferably, the empty paper tape release mechanism includes a main shaft, which is a circular steel pipe with the upper part machined into a platform. The two ends of the main shaft are installed in bearing seats, and a pair of bearing seats are symmetrically installed on the middle crossbeam in the length direction of the mounting frame.

[0012] Preferably, positioning bolt holes are machined at both ends of the spindle platform, and several positioning holes are evenly distributed in the middle of the spindle platform. The bearing includes an upper bearing and a lower bearing with a snap-fit ​​structure. The upper surface of the middle part of the lower bearing is machined with an arc step that matches the lower part of both ends of the spindle. The upper horizontal panel of the upper bearing is machined with bolt through holes. Positioning bolts are screwed into the positioning bolt holes at both ends of the spindle through the bolt through holes. Several bushings corresponding to the positioning holes are fitted in the middle of the spindle. Spring pins are inserted into the spindle positioning holes on the left side of the bushings.

[0013] Preferably, the empty paper tape tray is rotatably mounted on the bushing. The bushing includes a bushing body, with a glass fiber plate disc integrally formed at the left end of the bushing body. The diameter of the glass fiber plate disc is larger than the diameter of the bushing body. A groove step is provided at the right end of the bushing body, and threads are machined on the groove step. A round nut is threaded onto the right end of the bushing body. N layers of adjusting washers are provided on the left side of the round nut, where N is zero or a positive integer.

[0014] Preferably, the spring pin includes an L-shaped connecting plate, one end of which has upper and lower through holes for the pin to pass through, a spring is installed between the upper and lower through holes, and a pull ring is provided at the upper end of the pin.

[0015] Preferably, laser rangefinders are installed at the head and tail ends of the empty paper tape pressing mechanism.

[0016] The beneficial effects of this utility model are:

[0017] This utility model achieves automatic release and compression of the empty paper tape by setting up an empty paper tape release mechanism, an empty paper tape tensioning mechanism, and several sets of empty paper tape pressing mechanisms, as well as by setting up five-stage guide rollers; by setting up a pressure roller group, it achieves compression of the empty paper tape with a paper pad block sprayed with adhesive on the upper surface of the outer periphery of the electric turntable, and automatically sticks the paper pad block to the empty paper tape. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a three-dimensional structural diagram of the empty paper tape release and clamping device according to an embodiment of the present utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the empty paper tape release and clamping device after removing the mounting frame;

[0021] Figure 3 This is a three-dimensional structural diagram of the empty paper tape release mechanism according to an embodiment of the present utility model;

[0022] Figure 4 This is a front view of the empty paper tape release mechanism according to an embodiment of the present utility model;

[0023] Figure 5 This is a left view of the empty paper tape release mechanism according to an embodiment of the present utility model;

[0024] Figure 6 This is a schematic diagram of the empty paper tape tray clamping mechanism according to an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the spring pin structure according to an embodiment of the present utility model;

[0026] Figure 8 This is a schematic diagram of the structure of the bushing according to an embodiment of the present utility model;

[0027] Figure 9 This is a three-dimensional structural diagram of the empty paper tape tensioning mechanism according to an embodiment of the present utility model;

[0028] Figure 10 This is a three-dimensional structural diagram of the empty paper tape pressing mechanism according to an embodiment of the present utility model;

[0029] Figure 11 This is a cross-sectional view of the pressure roller assembly according to an embodiment of the present utility model;

[0030] Among them, 1 is the mounting frame, 2 is the empty paper tape tray, 3 is the coil oil passage pad, 4 is the empty paper tape tensioning mechanism, 5 is the empty paper tape pressing mechanism, 6 is the empty paper tape, 7 is the main shaft, 8 is the shaft seat, 9 is the positioning bolt, 10 is the spring pin, 11 is the glass fiber plate disc, 12 is the round nut, 13 is the adjusting washer, 14 is the pull ring, 15 is the spring, 16 is the pin, 17 is the connecting plate, 18 is the first-stage guide wheel, 19 is the second-stage guide wheel, 20 is the third-stage guide wheel, 21 is the electromagnetic damping wheel, 22 is the hot pressing mechanism, 23 is the pressing bolt, 24 is the mounting base plate, 25 is the photoelectric switch, 26 is the guide wheel mounting seat, 27 is the fourth-stage guide wheel, 28 is the fifth-stage guide wheel, 29 is the servo motor, 30 is the pressure roller assembly housing, 31 is the driving wheel, 32 is the driven wheel, 33 is the transmission belt, and 34 is the bushing body. Detailed Implementation

[0031] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0032] like Figure 1-11 As shown, the empty paper tape release and clamping device includes an empty paper tape release mechanism, an empty paper tape tensioning mechanism 4, and several sets of empty paper tape clamping mechanisms 5 (three sets in this embodiment) fixedly installed on the mounting frame 1. The mounting frame 1 is a frame with a cubic structure in its outer contour. A cabinet is set in the middle of the lower part of the mounting frame 1. The lower part of the electric turntable (not shown in the figure) is located in the cabinet. The empty paper tape release mechanism is used to convey the empty paper tape 6 wound on the empty paper tape tray 2. The empty paper tape tensioning mechanism 4 is used to provide a certain tension for conveying the empty paper tape 6. The empty paper tape clamping mechanism 5 is used to clamp the empty paper tape 6 with paper pads sprayed with adhesive. After the paper pads are firmly bonded to the empty paper tape 6 at a certain distance, they become coil oil channel pads 3. The coil oil channel pads 3 are wound into a roll by the winding mechanism to become the finished product.

[0033] The empty paper tape release mechanism includes a main shaft 7 and an empty paper tape tray 2. The main shaft 7 is a circular steel pipe with the upper part machined into a platform. The upper surface of the main shaft 7 has positioning bolt holes machined at both ends of the platform. The upper surface of the main shaft 7 has several positioning holes evenly distributed in the middle of the platform. The positioning holes are used to position and install the empty paper tape tray 2. The two ends of the main shaft 7 are fixedly installed in the bearing 8. A pair of bearings 8 are symmetrically fixedly installed on the middle crossbeam of the mounting frame 1 in the length direction by bolts. The bearing 8 is a cuboid structure, including an upper bearing and a lower bearing with a snap-fit ​​structure. The upper surface of the middle part of the lower bearing is machined with an arc step that matches the lower part of the two ends of the main shaft 7. The main shaft 7 has several bushings corresponding to the positioning holes in its middle part. The empty paper tape tray 2 is rotated and mounted on the bushings. First, the two ends of the main shaft 7 are installed in the arc step. The working position of the empty paper tape tray 2 corresponds to the empty paper tape tensioning mechanism 4. After the working position of the empty paper tape tray 2 is adjusted, the upper seat is then snapped onto the lower seat. The upper horizontal panel of the upper seat is machined with bolt through holes. The positioning bolts 9 pass through the bolt through holes and are screwed into the positioning bolt holes at both ends of the main shaft 7, so that the main shaft 7 is firmly installed in the shaft seat 8.

[0034] The bushing includes a bushing body 34. A glass fiber plate disc 11 is integrally formed at the left end of the bushing body 34. The diameter of the glass fiber plate disc 11 is larger than the diameter of the bushing body 34. A grooved step is provided at the right end of the bushing body 34, and threads are machined on the grooved step. A round nut 12 is threaded onto the right end of the bushing body 34. The width of the empty paper tape reel 2 typically varies between 6-20mm. To ensure that the round nut 12 can fit tightly against the right side of the empty paper tape reel 2 and to reduce the time required to tighten the round nut 12, several layers of adjusting washers 13 are provided on the left side of the round nut 12 according to the different widths of the empty paper tape reel 2. Figure 4The three-layer adjusting washer 13 (or one to three layers of adjusting washer 13, or no adjusting washer 13) is installed in the positioning hole on the main shaft 7 on the left side of the glass fiber plate disc 11. The bushing body 34, glass fiber plate disc 11, adjusting washer 13, spring pin 10 and round nut 12 together constitute the empty paper tape tray clamping mechanism. The left side of the empty paper tape tray clamping mechanism is positioned by the spring pin 10. Each empty paper tape tray clamping mechanism is an independent whole, and each empty paper tape tray 2 is equipped with a set of empty paper tape tray clamping mechanisms. The empty paper tape tray 2 includes a tray inner ring rotatably mounted on the bushing body 34. The tray inner ring can rotate around the bushing body 34 to release the empty paper tape 6. The left and right sides of the tray inner ring are integrally formed with a left disc and a right disc. The empty paper tape 6 is wound on the tray inner ring and clamped between the left disc and the right disc. After inserting the spring pin 10 at the working position of the empty paper tape reel 2 and tightening the round nut 12, the glass fiber plate disc 11 and the adjusting washer 13 apply a certain clamping force to the empty paper tape reel 2. The clamping force prevents the empty paper tape reel 2 from rotating too fast and simultaneously positions and fixes the output direction of the empty paper tape 6. The spring pin 10 is inserted into the positioning hole on the main shaft 7 to limit the left side of the glass fiber plate disc 11. The spring pin 10 includes an L-shaped connecting plate 17. One end of the connecting plate 17 has upper and lower through holes for the pin 16 to pass through. A spring 15 is installed between the upper and lower through holes. The pin 16 passes through the upper and lower through holes and the spring 15. A pull ring 14 is provided at the upper end of the pin 16. Pulling the pull ring 14 can pull the pin 16 out of the positioning hole of the main shaft 7, or push the pull ring 14 downward to insert the pin 16 into the positioning hole of the main shaft 7, so as to realize the position change of the empty paper tape reel 2 on the main shaft 7. When changing the empty paper tape reel 2, simply pull out the spring pin 10 to move the empty paper tape reel 2 between different workstations, achieving rapid reel changing. The middle of the main shaft 7 is the working position for the empty paper tape reel 2, the right side is the material preparation position for placing several spare empty paper tape reels 2, and the left side is the empty reel position for placing used empty reels. The spare empty paper tape reels 2 are moved forward one by one to the working position, completing the rapid reel changing. The rapid reel changing can be completed in about one minute, which is beneficial for continuous operation of the equipment and saves the time occupied by reel changing in the equipment operation.

[0035] The empty paper tape tensioning mechanism 4 includes a mounting base plate 24, which is a long strip plate. The mounting base plate 24 is vertically welded to the mounting frame 1 at the working position corresponding to the empty paper tape tray 2. Three guide wheel mounting seats 26 are welded to the mounting base plate 24 from top to bottom. The third-stage guide wheel 20, the second-stage guide wheel 19, and the first-stage guide wheel 18 are rotatably mounted on the guide wheel mounting seats 26 from top to bottom. The third-stage paper tape guide wheel is used for directional conveying of the empty paper tape 6 and has an anti-deviation limiting function for the empty paper tape 6. A hot-pressing mechanism 22 and a photoelectric switch 25 are arranged from top to bottom on the mounting base plate 24 between the secondary guide wheel 19 and the primary guide wheel 18. The photoelectric switch 25 is used to detect the presence or absence of empty paper tape 6. The hot-pressing mechanism 22 includes an upper hot-pressing plate, a lower hot-pressing plate, and support plates on both sides. A clamping bolt 23 is threaded onto the upper hot-pressing plate of the hot-pressing mechanism 22. The empty paper tape 6 passes through the opening formed by the upper hot-pressing plate, the lower hot-pressing plate, and the support plates on both sides. The upper and lower hot-pressing plates are constant-temperature silicone rubber heating plates. The hot-pressing mechanism 22 is used to preheat the empty paper tape 6 and heat the adhesive joint of the empty paper tape 6. An electromagnetic damping wheel 21 is fixedly mounted on the mounting base plate 24 by a mounting bracket. The electromagnetic damping wheel 21 is located outside the tertiary guide wheel 20 and the secondary guide wheel 19, and the electromagnetic damping wheel 21 is close to the tertiary guide wheel 20 and the secondary guide wheel 19. The empty paper tape 6 passes sequentially through the first-stage guide wheel 18, photoelectric switch 25, hot pressing mechanism 22, second-stage guide wheel 19, electromagnetic damping wheel 21 and third-stage guide wheel 20, and then is conveyed to the empty paper tape pressing mechanism 5 through the fourth-stage guide wheel 27 and fifth-stage guide wheel 28. The fourth-stage guide wheel 27 and fifth-stage guide wheel 28 are fixedly installed on the mounting frame 1 through the guide wheel mounting base 26. The fourth-stage guide wheel 27 and fifth-stage guide wheel 28 are arranged horizontally and are higher than the third-stage guide wheel 20.

[0036] An electric turntable that rotates counterclockwise is provided at the empty paper tape pressing mechanism 5. The empty paper tape pressing mechanism 5 includes a matching servo motor 29 and a pressure roller group. The pressure roller group includes a pressure roller group housing 30, a drive wheel 31, a transmission belt 33, and several driven wheels 32. The servo motor 29 and the pressure roller group housing 30 are fixedly mounted on the mounting frame 1. The drive wheel 31, the transmission belt 33, and the several driven wheels 32 are located inside the pressure roller group housing 30. The drive wheel 31 and the driven wheels 32 are rotatably connected to both sides of the pressure roller group housing 30. The output shaft of the servo motor 29 is connected to the drive wheel 31 to drive its rotation. The drive wheel 31 and the several driven wheels 32 are rotatably connected through the transmission belt 33. The drive wheel 31 and the driven wheels 32 in the several pressure roller groups are arranged in an arc shape and are concentric with the electric turntable.

[0037] Laser rangefinders are installed at the head and tail ends of the empty paper tape pressing mechanism 5. The laser rangefinders detect the distance of the paper pad block in real time. If the difference between the two sides exceeds the tolerance, it indicates that the paper pad block is tilted or displaced. The alarm will be triggered and the machine will be stopped to find the cause.

[0038] The working process of the empty paper tape release and clamping device of this utility model embodiment is as follows:

[0039] First, seven empty paper tape reels 2 of the required specifications and sizes are respectively threaded onto the main shaft 7 through the empty paper tape reel clamping mechanism. Spring pins 10 are inserted into the corresponding positioning holes of the main shaft 7 to fix the empty paper tape reels 2 on the main shaft 7. The two ends of the main shaft 7 are placed into the shaft seats 8, and the empty paper tape reels 2 in the working position are aligned with the empty paper tape tensioning mechanism 4. Then, the two ends of the main shaft 7 are fixed with positioning bolts 9, which means fixing the working position of the empty paper tape reels 2. When the empty paper tape 6 on the empty paper tape reel 2 in the working position is used up and a new empty paper tape reel 2 needs to be replaced, the new empty paper tape reel 2 is manually moved to the working position and fixed. The head end of the new empty paper tape 6 is pulled out and glued to the tail end of the used empty paper tape 6. The glued part is placed in the hot pressing mechanism 22, and the upper clamping bolts 23 are tightened to press and bond. The glue at the glued part can be completely cured in about 40 seconds. After the glue has cured, the clamping bolts 23 are loosened. The empty paper tape tray 2 is fed by the empty paper tape tensioning mechanism 4 with a certain tension force to deliver the empty paper tape 6. The three-stage guide rollers guide the empty paper tape 6 in a directional manner. The empty paper tape 6 passes through the first-stage guide roller 18, photoelectric switch 25, hot pressing mechanism 22, second-stage guide roller 19, electromagnetic damping roller 21 and third-stage guide roller 20 in sequence, and then passes through the fourth-stage guide roller 27 and fifth-stage guide roller 28 to be delivered between the pressure roller group and the electric turntable. The photoelectric switch 25 determines whether there is an empty paper tape 6. When no empty paper tape 6 is detected, the control equipment stops. The outer periphery of the electric turntable is provided with a heat-resistant rubber plate for accommodating paper pads. The upper surface of the paper pads is sprayed with adhesive. After the empty paper tape 6 is guided by the five-stage guide rollers 28, the inner side of the empty paper tape 6 is attached to the adhesive-coated side of the paper pad on the outer periphery of the electric turntable. The outer side of the empty paper tape 6 is attached to the drive belt 33 of the empty paper tape pressing mechanism 5. The paper pad is firmly attached to the empty paper tape 6 by the empty paper tape pressing mechanism 5 in conjunction with the electric turntable to become the coil oil passage pad 3. The coil oil passage pad 3 continues to rotate with the electric turntable. Finally, the coil oil passage pad 3 is wound into a roll by the winding mechanism.

[0040] The rotational speeds of the driving roller 31 and driven roller 32 of the pressure roller assembly are automatically matched with the rotational speed of the electric turntable through a control system. The control system ensures that their linear velocities are the same, thus synchronously pressing the paper pads onto the rotating empty paper tape 6. The pushing mechanism places the paper pads into the heat-resistant rubber plate on the outer circumference of the electric turntable as the turntable rotates, and they are bonded to the empty paper tape 6 under a certain pressure. The pushing mechanism is based on the flying shear principle; different spacings of the paper pads correspond to different flying shear curves, matching different rotational speeds of the electric turntable. The flying shear is an electronic cam motion that can be used to control many different spacing lengths.

[0041] In this embodiment of the utility model, all technical features not described in detail are existing technologies or conventional technical means, and will not be repeated here.

[0042] Finally, it should be noted that the above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model.

Claims

1. An empty paper tape release and clamping device, comprising an empty paper tape release mechanism, an empty paper tape tensioning mechanism, and several sets of empty paper tape clamping mechanisms mounted on a mounting frame, wherein the mounting frame is a cubic frame, characterized in that, The empty paper tape tensioning mechanism includes a mounting base plate located above the empty paper tape release mechanism. Three guide wheel mounting seats are welded to the mounting base plate from top to bottom. A third-stage guide wheel, a second-stage guide wheel, and a first-stage guide wheel are sequentially rotatably mounted on the guide wheel mounting seats from top to bottom. An electromagnetic damping wheel is mounted on the mounting base plate, located outside and in close contact with the third-stage and second-stage guide wheels. Fourth-stage and fifth-stage guide wheels are mounted on a mounting frame via guide wheel mounting seats. The fourth-stage and fifth-stage guide wheels are horizontally arranged and higher than the third-stage guide wheel. An empty paper tape pressing machine is mounted below the fifth-stage guide wheel. The empty paper tape pressing mechanism includes a servo motor and a pressure roller assembly. The pressure roller assembly includes a pressure roller assembly housing, a drive wheel, a transmission belt, and several driven wheels. The servo motor and the pressure roller assembly housing are mounted on a mounting frame. The drive wheel, transmission belt, and driven wheels are located inside the pressure roller assembly housing. The drive wheel and driven wheels are rotatably connected to both sides of the pressure roller assembly housing. The output shaft of the servo motor is connected to the drive wheel. The drive wheel and driven wheels are connected by transmission belt. The drive wheel and driven wheels are arc-shaped and adjacent to the outer periphery of the electric turntable and are concentric with the electric turntable. The electric turntable is mounted on the mounting frame and rotates counterclockwise.

2. The empty paper tape release and clamping device according to claim 1, characterized in that, A hot pressing mechanism and a photoelectric switch are arranged from top to bottom on the mounting base plate between the secondary guide wheel and the primary guide wheel.

3. The empty paper tape release and clamping device according to claim 2, characterized in that, The hot pressing mechanism includes an upper hot pressing plate, a lower hot pressing plate, and support plates on both sides, with tightening bolts threaded onto the upper hot pressing plate.

4. The empty paper tape release and clamping device according to claim 3, characterized in that, The upper and lower hot press plates are constant-temperature silicone rubber heating plates.

5. The empty paper tape release and clamping device according to claim 1, characterized in that, The empty paper tape release mechanism includes a main shaft, which is a circular steel pipe with the upper part machined into a platform. The two ends of the main shaft are installed in bearing seats, and a pair of bearing seats are symmetrically installed on the middle crossbeam in the length direction of the mounting frame.

6. The empty paper tape release and clamping device according to claim 5, characterized in that, Positioning bolt holes are machined at both ends of the spindle platform, and several positioning holes are evenly distributed in the middle of the spindle platform. The bearing includes an upper bearing and a lower bearing with a snap-fit ​​structure. The upper surface of the middle part of the lower bearing is machined with an arc step that matches the lower part of both ends of the spindle. The upper horizontal panel of the upper bearing is machined with bolt through holes. Positioning bolts are screwed into the positioning bolt holes at both ends of the spindle through the bolt through holes. Several bushings corresponding to the positioning holes are fitted in the middle of the spindle. Spring pins are inserted into the spindle positioning holes on the left side of the bushings.

7. The empty paper tape release and clamping device according to claim 6, characterized in that, The empty paper tape tray is rotated and mounted on the bushing. The bushing includes a bushing body. A glass fiber plate disc is integrally formed at the left end of the bushing body. The diameter of the glass fiber plate disc is larger than the diameter of the bushing body. A groove step is provided at the right end of the bushing body. Threads are machined on the groove step. A round nut is threaded and mounted on the right end of the bushing body. N layers of adjusting washers are provided on the left side of the round nut. N is zero or a positive integer.

8. The empty paper tape release and clamping device according to claim 7, characterized in that, The spring pin includes an L-shaped connecting plate with upper and lower through holes at one end for the pin to pass through. A spring is installed between the upper and lower through holes, and a pull ring is provided at the upper end of the pin.

9. The empty paper tape release and clamping device according to any one of claims 1-8, characterized in that, Laser rangefinders are installed at the head and tail ends of the empty paper tape pressing mechanism.

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