A valve bag paper tube high-speed forming equipment

Abstract

This invention relates to the field of valve bag paper tube production technology, specifically to a high-speed forming equipment for valve bag paper tubes, including a frame and a winding drum rotatably mounted on the frame. A fixed frame is fixedly mounted on the frame, and two sets of pressure plates and cutting blades are provided on the fixed frame. A limit roller and a clamping roller are provided on one side of the winding drum. A connecting rod c is fixedly mounted on the limit roller, and both ends of the connecting rod c are provided with adjustment components. The adjustment components include positioning blocks rotatably connected to the clamping roller. By setting the adjustment components, this invention generates tension on the kraft paper during high-speed winding of kraft paper. This tension pushes the limit roller away from the clamping roller. When the high-speed rotation causes insufficient kraft paper supply, resulting in taut kraft paper, the kraft paper pushes the limit roller to squeeze the side spring and triggers an alarm. The system automatically adjusts the winding speed in a timely manner, ensuring efficient and high-quality winding of kraft paper.

Description

Technical Field

[0001] This invention relates to the field of valve bag paper tube production technology, and specifically to a high-speed forming equipment for valve bag paper tubes. Background Technology

[0002] Common valve bags are mostly made of kraft paper. During the production and winding of kraft paper into a tube, without changing the rotation speed, the diameter of the winding tube gradually increases with continuous rotation, indicating that the amount of paper wound in the same amount of time will gradually increase. This requires the output end of the paper roll to supply faster and faster. However, this high-speed winding method is prone to problems. Either the supply speed at the output end of the paper roll cannot keep up, causing the winding tube to break the paper, or the supply speed at the output end of the paper roll is too fast, causing the kraft paper on the winding tube to be unwound and loose. The kraft paper is not wound evenly and is prone to wrinkles when stacked. Summary of the Invention

[0003] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a valve bag paper tube high-speed forming device, which can effectively solve the problem that wrinkles or tears easily occur when winding kraft paper into tubes without changing the rotation speed in the existing technology.

[0004] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a high-speed forming device for valve pocket paper tubes, including a frame and a winding drum rotatably mounted on the frame. A fixing frame is fixedly installed on the frame, and two sets of pressure plates for pressing kraft paper and cutting blades for cutting kraft paper are provided on the fixing frame. A limiting roller and a clamping roller are provided on one side of the winding drum. A connecting rod c is fixedly installed on the limiting roller, and both ends of the connecting rod c are provided with adjustment components. When the fixing frame is in a loose or tight state when winding the kraft paper, the adjustment components adjust the winding rhythm in time by changing the position of the limiting roller.

[0005] The control component includes a positioning block rotatably connected to the clamping roller. A limiting groove is formed on one side of the positioning block, and the connecting rod c is slidably inserted into the limiting groove. A fixing groove is formed in the positioning block, and a sliding block b is slidably installed in the fixing groove. The sliding block b is rotatably connected to the connecting rod c. The sliding block b is square, with one corner being a bevel. A spring is fixedly connected to one side of the sliding block b, and the end of the spring is fixedly connected to the fixing groove. When the kraft paper is in a relaxed state, the spring is used to push the sliding block b to control the limiting roller to approach the clamping roller, thereby causing the limiting roller and the clamping roller to clamp the kraft paper, briefly pausing the kraft paper supply, and waiting for the winding drum to tighten the kraft paper on it.

[0006] A sliding rod is slidably inserted on the positioning block. A trapezoidal block and a sensing block are fixedly installed at both ends of the sliding rod. When the sensing block rises away from the positioning block, it will warn the system that the kraft paper is in a taut state. The spring and the sliding rod are both installed on the side of the sliding block b away from the clamping roller.

[0007] Furthermore, an electric push rod is fixedly installed on the outer side of the frame, and an adapter block is fixedly installed at the output end of the electric push rod. A sliding groove b is provided on the frame, and a connecting rod b is slidably inserted into the sliding groove b. The two ends of the connecting rod b are fixedly connected to the adapter block and the positioning block, respectively.

[0008] Furthermore, an antistatic roller is provided above the winding drum, and a connecting rod a is fixedly connected to both ends of the antistatic roller. A sliding block a is rotatably installed at the end of the connecting rod a. The winding drum has a sliding groove a, and the sliding block a is slidably inserted into the sliding groove a.

[0009] Furthermore, a marker block is fixedly installed on the sliding block a, and a rangefinder is fixedly connected to the top of the sliding groove a.

[0010] Furthermore, a threaded rod is threadedly installed on the fixing frame, and a fixing plate is fixedly connected to the end of the threaded rod. A limit rod is fixedly installed on the fixing plate, and the limit rod is slidably inserted into the fixing frame. A sliding groove is opened at the bottom of the limit rod, and a lead screw is rotatably installed in the sliding groove. The cutting blade is rotatably connected to the lead screw.

[0011] Furthermore, multiple sets of fixing sleeves are fixedly connected to the bottom of the limiting rod and on both sides of the slide groove. A sliding rod is slidably inserted into the bottom of the fixing sleeve and is fixedly connected to the pressure plate. A termination key is fixedly installed on the limiting rod and at the end of the fixing sleeve.

[0012] Furthermore, a support roller is rotatably mounted between the two sets of positioning blocks, and the support roller is located on the side of the limiting roller away from the clamping roller. The limiting roller and the support roller are respectively located directly below the two sets of pressure plates.

[0013] The technical solution provided by this invention has the following advantages compared with the known prior art: This invention, through the setting of a control component, ensures that during the high-speed winding of kraft paper, the winding kraft paper generates tension on the kraft paper, which pushes the limiting roller away from the clamping roller. When the high-speed rotation causes insufficient kraft paper supply, resulting in taut kraft paper, the kraft paper pushes the limiting roller to squeeze the side spring and triggers an alarm. The system then automatically adjusts the winding speed in a timely manner, ensuring efficient and high-quality kraft paper winding. If the kraft paper is wound loosely due to a slow winding speed, the limiting roller, lacking the pushing force of the kraft paper, moves back closer to the clamping roller, thus clamping the kraft paper between the limiting roller and the clamping roller, briefly pausing the kraft paper supply until the winding roller tightens the kraft paper on it, restoring tension and pushing the limiting roller away from the clamping roller, thereby resuming the kraft paper supply. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the control component of the present invention; Figure 3 This is a cross-sectional structural diagram of the control component of the present invention; Figure 4 This is a partial three-dimensional structural diagram of the frame of the present invention; Figure 5 This is a three-dimensional structural diagram of the pressure plate portion of the present invention; Figure 6 This is a cross-sectional structural diagram of the fixing sleeve of the present invention; Figure 7 This is a diagram showing the state of the kraft paper during the winding process of this invention.

[0016] Figure label: 1. Frame; 101. Take-up drum; 102. Sliding groove a; 103. Antistatic roller; 1031. Connecting rod a; 1032. Sliding block a; 1033. Marking block; 1034. Rangefinder; 104. Sliding groove b; 2. Fixing frame; 201. Threaded rod; 202. Fixing plate; 203. Limiting rod; 204. Fixing sleeve; 205. Sliding rod; 206. Pressure plate; 207. Cutting blade; 3. Electric push rod; 301. Adapter block; 302. Connecting rod b; 303. Positioning block; 3031. Limiting groove; 3032. Sliding block b; 3033. Spring; 3034. Sliding rod; 3035. Trapezoidal block; 3036. Sensing block; 304. Support roller; 305. Limiting roller; 3051. Connecting rod c; 306. Clamping roller. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0018] The present invention will be further described below with reference to embodiments.

[0019] Example 1: See attached document Figure 1 —Appendix Figure 3 and attached Figure 7 As shown, a high-speed forming device for valve pocket paper rolls includes a frame 1 and a winding drum 101 rotatably mounted on the frame 1. The winding drum 101 is used to wind kraft paper. A motor for driving the rotation of the winding drum 101 is provided on one side of the frame 1. An electric push rod 3 is fixedly installed on the outer side of the frame 1. The electric push rod 3 is used to control the raising and lowering of a limiting roller 305. During the winding process of the winding drum 101, the electric push rod 3 controls the limiting roller 305 to rise as the diameter of the paper roll increases. A rotating... The connecting block 301 serves as a connecting component between the electric push rod 3 and the connecting rod b302. The frame 1 is provided with a sliding groove b104, which is used to limit the sliding trajectory of the connecting rod b302 and helps to enhance the stability of the lifting and lowering of the limiting roller 305. The connecting rod b302 is slidably inserted in the sliding groove b104, and both ends of the connecting rod b302 are fixedly connected to the connecting block 301 and the positioning block 303, respectively. The connecting rod b302 is used to pass through the frame 1 to connect the electric push rod 3 and the limiting roller 305.

[0020] A limiting roller 305 and a clamping roller 306 are provided on one side of the take-up drum 101. The limiting roller 305 is used to monitor the tension of the kraft paper. When the kraft paper is taut, it pulls the limiting roller 305 towards the support roller 304, thus easing the tension of the kraft paper by reducing its tilt angle. The control component then alerts the system. A connecting rod c3051 is fixedly installed on the limiting roller 305. The connecting rod c3051 facilitates the sliding of the limiting roller 305 on the control component. Both ends of the connecting rod c3051 are equipped with control components. When fixed... When the kraft paper in frame 2 becomes loose or tight during winding, the control component promptly alerts the system by changing the position of the limit roller 305, allowing the system to adjust the winding rhythm and balance the rotation speed of the winding drum 101 and the paper roll supply speed, thereby solving the problem of tight kraft paper winding. By setting the clamping roller 306, when the kraft paper becomes loose during winding, the limit roller 305 loses the pushing force of the kraft paper and, under the influence of the control component, causes the kraft paper to move closer to the clamping roller 306, thus achieving the purpose of clamping and fixing the kraft paper by the limit roller 305 and the clamping roller 306, making it easier for the winding drum 101 to tighten the loose kraft paper in time.

[0021] The control component includes a positioning block 303 rotatably connected to the clamping roller 306. A limiting groove 3031 is formed on one side of the positioning block 303. The connecting rod c3051 is slidably inserted into the limiting groove 3031, which limits the sliding range of the connecting rod c3051. A fixing groove is formed within the positioning block 303 to limit the sliding range of the sliding block b3032. The fixing groove slidably mounts the sliding block b3032, which is rotatably connected to the connecting rod c3051. The sliding block b3032 moves towards the trapezoidal block 3035 and pushes it upwards. The sliding block b3032 is square with one corner being beveled; the square shape helps prevent the sliding block b3032 from moving upwards. 2. During the movement, rotation occurs, causing the position of the inclined plane to change. When the sliding block b3032 is directly below the trapezoidal block 3035, the top plane of the sliding block b3032 helps the trapezoidal block 3035 maintain a stable height. A spring 3033 is fixedly connected to one side of the sliding block b3032, and the end of the spring 3033 is fixedly connected to the fixing groove. If the kraft paper is in a relaxed state, the spring 3033 is used to push the sliding block b3032 to control the limiting roller 305 to approach the clamping roller 306, so that the limiting roller 305 and the clamping roller 306 clamp the kraft paper, briefly pausing the kraft paper supply, waiting for the winding drum 101 to tighten the kraft paper on it, until the kraft paper pushes the limiting roller 305 away from the clamping roller 306 again.

[0022] A sliding rod 3034 is slidably inserted on the positioning block 303. The sliding rod 3034 is used to connect the trapezoidal block 3035 and the sensing block 3036 and to limit their position changes. The trapezoidal block 3035 and the sensing block 3036 are fixedly installed at both ends of the sliding rod 3034, respectively. By setting the trapezoidal block 3035, the sliding block b3032 can push the sliding rod 3034 to rise. By setting the sensing block 3036, when the sensing block 3036 rises away from the positioning block 303, it will warn the system that the kraft paper is in a taut state. The spring 3033 and the sliding rod 3034 are both installed on the side of the sliding block b3032 away from the clamping roller 306.

[0023] Specifically, the kraft paper passes between the limiting roller 305 and the clamping roller 306, and is continuously wound by the winding drum 101. During the winding process, the kraft paper limiting roller 305, in its normal state, will push the limiting roller 305 to maintain a certain distance from the clamping roller 306. When the kraft paper becomes taut, it will further push the limiting roller 305 towards the support roller 304. The limiting roller 305 controls the sliding block b3032 to move towards the spring 3033 via the connecting rod c3051. The sliding block b3032 pushes the trapezoidal block 3035 upward, and the trapezoidal block 3035 moves the sensing block via the sliding rod 3034. When 3036 is lifted, the sensing block 3036 separates from the positioning block 303. The sensing block 3036 sends an alarm signal to the system, allowing the system to adjust the winding rhythm and balance the rotation speed of the winding drum 101 and the supply speed of the paper roll, thereby solving the problem of tight kraft paper winding. When the kraft paper becomes loose during winding, the limiting roller 305 loses the pushing force of the kraft paper. The spring 3033 pushes the limiting roller 305 through the sliding block b3032, causing the kraft paper to move closer to the clamping roller 306. This achieves the purpose of clamping and fixing the kraft paper by the limiting roller 305 and the clamping roller 306, making it easier for the winding drum 101 to speed up and tighten the loose kraft paper in time.

[0024] Example 2: See attached document Figure 1 and attached Figure 4As shown, an antistatic roller 103 is provided above the winding drum 101. The antistatic roller 103 is used to flatten the surface of the wound kraft paper to prevent wrinkles. Both ends of the antistatic roller 103 are fixedly connected to connecting rods a1031. The connecting rods a1031 are used to connect the antistatic roller 103 and the sliding block a1032. The sliding block a1032 is rotatably installed at the end of the connecting rod a1031. The sliding block a1032 is square, which helps to prevent the sliding block a1032 from rotating along the sliding groove a102 during the lifting and lowering process, thereby making the marking block 1033 and the rangefinder 1... 034 misalignment, the take-up drum 101 is provided with a sliding groove a102, the sliding block a1032 is slidably inserted in the sliding groove a102, the sliding groove a102 limits the lifting trajectory of the antistatic roller 103, a marker block 1033 is fixedly installed on the sliding block a1032, and a rangefinder 1034 is fixedly connected to the top of the sliding groove a102. By setting the marker block 1033 and the rangefinder 1034, the rangefinder 1034 detects the distance between itself and the marker block 1033 in real time, so that the system can control the limiting roller 305 to always maintain the relative height of the antistatic roller 103 through the electric push rod 3.

[0025] Example 3: See attached document Figure 1 Appendix Figure 5 and attached Figure 6 As shown, a fixed frame 2 is fixedly installed on the frame 1. The fixed frame 2 is used to support the pressure plate 206 and the cutting blade 207. The fixed frame 2 is provided with two sets of pressure plates 206 for pressing kraft paper and cutting blades 207 for cutting kraft paper.

[0026] A threaded rod 201 is threadedly installed on the fixed frame 2. By setting the threaded rod 201, the height of the pressure plate 206 is changed, thereby limiting the rising height of the limiting roller 305, thus achieving the purpose of freely adjusting the required paper tube diameter. The end of the threaded rod 201 is fixedly connected to the fixed plate 202, which supports the pressure plate 206 and the cutting blade 207. A limiting rod 203 is fixedly installed on the fixed plate 202 and is slidably inserted into the fixed frame 2. The limiting rod 203 is used to prevent the fixed plate 202 from rotating with the threaded rod 201 and strengthens the connection between the fixed plate 202 and the fixed frame 2. A sliding groove is opened at the bottom of the limiting rod 203, and a lead screw is rotatably installed in the sliding groove. The cutting blade 207 is rotatably connected to the lead screw. A drive component is provided on one side of the limiting rod 203 to control the forward and reverse rotation of the lead screw. By setting the sliding groove and the lead screw, the drive component controls the rotation of the lead screw, and the lead screw controls the cutting blade 207 to slide along the sliding groove to cut the kraft paper.

[0027] Multiple sets of fixing sleeves 204 are fixedly connected to the bottom of the limiting rod 203 and on both sides of the slide groove. The fixing sleeves 204 are used to limit the sliding range of the sliding rod 205. The sliding rod 205 is slidably inserted into the bottom of the fixing sleeve 204 and is fixedly connected to the pressure plate 206. After the sliding rod 205 rises, it can trigger the pressure plate 206. A stop key is fixedly installed on the limiting rod 203 and at the end of the fixing sleeve 204. The stop key will release a signal to the system to stop the rotation of the winding drum 101 and start the drive component to control the lead screw to rotate, thereby causing the cutting blade 207 to cut the kraft paper. A support roller 304 is rotatably installed between the two sets of positioning blocks 303, and the support roller 304 is located on the side of the limiting roller 305 away from the clamping roller 306. 304 is used to support and hold the cut end of the kraft paper on the side of the paper roll, which facilitates the processing of the kraft paper end and the packaging of the entire paper roll by the staff. The limiting roller 305 and the supporting roller 304 are respectively located directly below the two sets of pressure plates 206, which facilitates the pressure plates 206 to clamp and fix the kraft paper. Specifically, the pressure plate 206 will first contact the kraft paper. After the kraft paper is stably clamped by the supporting roller 304 and the limiting roller 305, the supporting roller 304 and the limiting roller 305 continue to push the sliding rod 205 upward until the sliding rod 205 presses the stop key. The stop key will release a stop signal to the system, the system will stop rotating the winding drum 101, stop the electric push rod 3 from continuing to extend upward, and start the drive component to control the screw to rotate, so that the cutting blade 207 cuts the kraft paper.

[0028] Working principle: Kraft paper passes between the limiting roller 305 and the clamping roller 306. The winding drum 101, driven by a motor, continuously rotates and winds the kraft paper. During the winding process, the anti-static roller 103 adheres closely to the kraft paper tube on the winding drum 101, removing static electricity and smoothing out wrinkles. Under normal conditions, the limiting roller 305 maintains a certain distance from the clamping roller 306. When the kraft paper becomes taut, it further pushes the limiting roller 305 towards the support roller 304. The limiting roller 305 controls the sliding block b3032 to move towards the spring 3033 via the connecting rod c3051. The sliding block b3032 pushes the trapezoidal block 303. 5. As the paper rises, trapezoidal block 3035 lifts sensor block 3036 via slide bar 3034, causing sensor block 3036 to separate from positioning block 303. Sensor block 3036 sends an alarm signal to the system, allowing the system to adjust the winding rhythm and balance the rotation speed of winding drum 101 and the paper roll supply speed, thereby solving the problem of tight kraft paper winding. When the kraft paper becomes loose during winding, the limiting roller 305 loses the pushing force of the kraft paper. Spring 3033 pushes the limiting roller 305 via slide block b3032, causing the kraft paper to move closer to clamping roller 306, thereby achieving the purpose of clamping and fixing the kraft paper by the limiting roller 305 and clamping roller 306, making it easier for winding drum 101 to speed up and tighten the loose kraft paper in time.

[0029] As the diameter of the kraft paper tube wound on the take-up drum 101 continuously increases, the paper tube pushes the antistatic roller 103 upward. The antistatic roller 103 rises along the sliding groove a102. The distance measuring instrument 1034 detects the distance between itself and the marking block 1033 in real time, so that the system can control the limiting roller 305 to always maintain the relative height of the antistatic roller 103 via the electric push rod 3. The electric push rod 3 controls the two sets of positioning blocks 303 to rise via the connecting rod b302 connected to the adapter block 301. The positioning blocks 303 support the roller 304 and the limiting roller. 305 and the limiting roller 305 are raised together. When they rise to contact the pressure plate 206, the pressure plate 206, together with the support roller 304 and the limiting roller 305, stably clamps the kraft paper. The support roller 304 and the limiting roller 305 continue to push the sliding rod 205 upward until the sliding rod 205 presses the stop key. The stop key will release a stop signal to the system, the system will stop rotating the winding drum 101, stop the electric push rod 3 from continuing to extend upward, and start the drive component to control the screw to rotate, thereby causing the cutting blade 207 to cut the kraft paper.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-speed forming device for valve bag paper tubes, comprising a frame (1) and a take-up drum (101) rotatably mounted on the frame (1), characterized in that, A fixed frame (2) is fixedly installed on the frame (1). The fixed frame (2) is provided with two sets of pressure plates (206) for pressing kraft paper and cutting blades (207) for cutting kraft paper. A limit roller (305) and a clamping roller (306) are provided on one side of the winding drum (101). A connecting rod c (3051) is fixedly installed on the limit roller (305). Both ends of the connecting rod c (3051) are provided with adjustment components. When the fixed frame (2) is in a loose or tight state when winding the kraft paper, the adjustment components adjust the winding rhythm in time by changing the position of the limit roller (305). The control component includes a positioning block (303) rotatably connected to the clamping roller (306). A limiting groove (3031) is formed on one side of the positioning block (303). The connecting rod c (3051) is slidably inserted into the limiting groove (3031). A fixing groove is formed inside the positioning block (303), and a sliding block b (3032) is slidably installed in the fixing groove. The sliding block b (3032) is rotatably connected to the connecting rod c (3051). The sliding block b (3032) is square, with one corner being... On the inclined surface, a spring (3033) is fixedly connected to one side of the sliding block b (3032), and the end of the spring (3033) is fixedly connected to the fixing groove. When the kraft paper is in a relaxed state, the spring (3033) is used to push the sliding block b (3032) to control the limiting roller (305) to approach the clamping roller (306), so that the limiting roller (305) and the clamping roller (306) clamp the kraft paper, briefly suspend the supply of kraft paper, and wait for the winding drum (101) to tighten the kraft paper on it. A sliding rod (3034) is slidably inserted on the positioning block (303). A trapezoidal block (3035) and a sensing block (3036) are fixedly installed at both ends of the sliding rod (3034). When the sensing block (3036) rises away from the positioning block (303), it will warn the system that the kraft paper is in a taut state. The spring (3033) and the sliding rod (3034) are both installed on the side of the sliding block b (3032) away from the clamping roller (306).

2. The valve bag paper tube high-speed forming equipment according to claim 1, characterized in that, An electric push rod (3) is fixedly installed on the outside of the frame (1). An adapter block (301) is fixedly installed at the output end of the electric push rod (3). A sliding groove b (104) is provided on the frame (1). A connecting rod b (302) is slidably inserted in the sliding groove b (104), and the two ends of the connecting rod b (302) are fixedly connected to the adapter block (301) and the positioning block (303) respectively.

3. The valve bag paper tube high-speed forming equipment according to claim 1, characterized in that, An antistatic roller (103) is provided above the winding drum (101). Both ends of the antistatic roller (103) are fixedly connected to a connecting rod a (1031). A sliding block a (1032) is rotatably installed at the end of the connecting rod a (1031). The winding drum (101) is provided with a sliding groove a (102). The sliding block a (1032) is slidably inserted into the sliding groove a (102).

4. The valve bag paper tube high-speed forming equipment according to claim 3, characterized in that, A marker block (1033) is fixedly installed on the sliding block a (1032), and a rangefinder (1034) is fixedly connected to the top of the sliding groove a (102).

5. The valve bag paper tube high-speed forming equipment according to claim 1, characterized in that, A threaded rod (201) is threadedly installed on the fixed frame (2). The end of the threaded rod (201) is fixedly connected to a fixed plate (202). A limit rod (203) is fixedly installed on the fixed plate (202), and the limit rod (203) is slidably inserted on the fixed frame (2). A sliding groove is provided at the bottom of the limit rod (203), and a lead screw is rotatably installed in the sliding groove. The cutting blade (207) is rotatably connected to the lead screw.

6. The valve bag paper tube high-speed forming equipment according to claim 5, characterized in that, The bottom of the limiting rod (203) and on both sides of the slide groove are fixedly connected to multiple sets of fixing sleeves (204). A sliding rod (205) is slidably inserted into the bottom of the fixing sleeve (204), and the sliding rod (205) is fixedly connected to the pressure plate (206). A termination key is fixedly installed on the limiting rod (203) and at the end of the fixing sleeve (204).

7. The high-speed forming equipment for valve bag paper tubes according to claim 1, characterized in that, A support roller (304) is rotatably mounted between the two sets of positioning blocks (303), and the support roller (304) is located on the side of the limiting roller (305) away from the clamping roller (306). The limiting roller (305) and the support roller (304) are respectively located directly below the two sets of pressure plates (206).

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