Pipe cutting machine for masking tape mother roll

Abstract

The utility model belongs to the technical field of textured paper adhesive tape processing equipment, and particularly relates to a pipe cutting machine for a textured paper adhesive tape mother roll, which comprises a machine body, a mounting seat fixed on the machine body, an inflatable shaft rotating in the mounting seat, a pipe pushing mechanism mounted on the machine body and comprising two supports and a motor, and a clamping seat fixed on the machine body, a motor is installed on the support, a lead screw is fixed to the output end of the motor through a coupler, a limiting plate is fixed between the support and the clamping base, sliding blocks are connected to the lead screw in a threaded mode, a push rod is fixed to one sliding block, the push rod is in sliding connection with the air expansion shaft, and a pipe cutter is fixed to the other sliding block. The lead screw drives the sliding block to slide along the limiting plate, so that cut paper tubes on the air expansion shaft can be pushed away when the push rod moves along the air expansion shaft, and the situation that the hands of an operator are easily injured after manual discharging and contact with a tube cutter is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of masking tape processing equipment, specifically a tube cutting machine for masking tape master rolls. Background Technology

[0002] Masking tape, a widely used masking material in fields such as spraying, electronics, and packaging, requires the coated master roll to be cut into finished tape rolls of specific widths during its production process. In this process, the paper tube or plastic tube (i.e., the "core tube") at the center of the master roll needs to be cut into segments of a preset length by a tube cutter to serve as the supporting core for the cut tape rolls.

[0003] The traditional pipe cutting machine operates as follows: The operator installs a long core tube onto the machine's air shaft, which inflates to secure the core tube. Then, a high-speed rotating cutting blade moves axially, dividing the core tube into multiple equal-length segments. After cutting, the operator manually removes each segment from the air shaft. This unloading method has significant drawbacks:

[0004] Low efficiency: The speed of manual unloading is limited by the rhythm of manual operation and cannot match the production pace of high-speed cutting, forming a bottleneck in the overall efficiency of the machine; Safety hazards: When unloading, the operator's hands need to be close to the high-speed rotating cutting blade, which poses a risk of mechanical collision and the cutting edge is prone to causing scratches; Quality risks: Manual manipulation can easily cause indentations or deformation on the surface of the pipe section, affecting the concentricity of the subsequent tape winding.

[0005] Although existing technologies employ air-blowing or mechanical push rod unloading methods, they generally suffer from the following problems: air-blowing unloading is insufficient in overcoming the friction between the pipe section and the air shaft, especially for heavy plastic core tubes, which are prone to incomplete unloading.

[0006] Therefore, there is an urgent need to develop an automatic unloading solution for core tubes that combines efficient unloading, safety protection, and flexible adaptability. Utility Model Content

[0007] Based on this, this solution provides a tube cutter for masking tape master rolls. The screw drives the slider to slide along the limit plate, so that when the push rod moves along the air shaft, it can push the cut paper tubes on the air shaft away. This helps to prevent the operator's hand from being injured when the manual unloading comes into contact with the tube cutter.

[0008] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0009] A tube-cutting machine for masking tape master rolls includes a machine body with a mounting base fixed on the machine body. An air shaft rotates within the mounting base. A tube-pushing mechanism is mounted on the machine body, comprising a bracket and a motor. Two brackets and a clamping seat are fixedly connected to the machine body. The motor is fixedly mounted on the brackets. A lead screw is fixedly connected to the output end of the motor via a coupling. A limit plate is fixedly connected between the brackets and the clamping seat. A slider is threadedly connected to the lead screw and slidably connected to the limit plate. A push rod is fixedly mounted on one slider and slidably connected to the air shaft. A tube-cutting blade is fixed on the other slider.

[0010] Optionally, in one embodiment of the present invention, the lead screw and the card holder are rotatably connected, the bracket is located at the end of the machine body away from the mounting base, and the card holder is located at the end of the machine body close to the mounting base.

[0011] Optionally, in one embodiment of the present invention, the two limiting plates are symmetrically arranged about the lead screw, and the part of the slider that contacts the limiting plate is arranged with an arc surface structure.

[0012] Optionally, in one embodiment of the present invention, the part of the push rod that contacts the air shaft is provided with an arc-shaped structure, and the pipe cutter is located at the top of the air shaft.

[0013] Optionally, in one embodiment of the present invention, the diameter of the card holder is greater than the diameter of the lead screw, and the thickness of the card holder is less than the thickness of the mounting base.

[0014] Optionally, in one embodiment of the present invention, a support block is fixedly installed at one end of the machine body near the bracket, and the part of the support block that contacts the end of the air shaft is arranged with an arc surface structure.

[0015] Optionally, in one embodiment of the present invention, a material guiding mechanism is installed on the part of the machine body near the support block. The material guiding mechanism includes a material guiding plate and a stop block. Two stop blocks are engaged and installed on the machine body. The material guiding plate is fixedly connected to the stop block. The stop block is provided with an insertion hole. A locking block is fixedly connected to the machine body.

[0016] Optionally, in one embodiment of the present invention, the two abutment blocks and locking blocks are symmetrically arranged about the support block, and the guide plate is arranged with an inclined structure.

[0017] Optionally, in one embodiment of the present invention, the abutment block and the locking block are engaged, and the height of the locking block is greater than the height of the insertion hole.

[0018] The beneficial effects of this utility model are:

[0019] The masking tape master roll cutting machine provided by this utility model has a cutting blade that cuts the paper tube fixed on the air shaft. After the cutting blade cuts the paper tube, the motor control switch can be turned on. The motor drives the lead screw to rotate within the bracket and support. The lead screw is threaded with a slider. Since the slider is limited by the limiting plate installed between the bracket and support, when the lead screw rotates, the slider can only slide along the inside of the limiting plate. The push rod fixed at the end of the slider drives the push rod to slide along the side wall of the air shaft. During the movement, the push rod can push the cut paper tube to the unloading part, thereby improving the unloading speed of the paper tube. At the same time, it also helps to prevent the hand from being cut too close to the cutting blade during manual unloading. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0022] Figure 2 for Figure 1 The diagram shows an enlarged view of part A.

[0023] Figure 3 for Figure 1 The diagram shows an enlarged view of part B.

[0024] Figure 4 This is a schematic diagram of the connection structure of the mounting base and the air shaft in Embodiment 1 of this utility model;

[0025] Figure 5 for Figure 4 The diagram shows an enlarged view of section C.

[0026] Reference numerals in the attached drawings: 1. Body; 2. Push tube mechanism; 201. Bracket; 202. Motor; 203. Lead screw; 204. Limiting plate; 205. Card seat; 206. Slider; 207. Push rod; 3. Mounting base; 4. Air shaft; 5. Guide mechanism; 5. Guide plate; 501. Abutment; 502. Insertion hole; 5. Card block; 6. Cutting knife; 7. Support block. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solution of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0028] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0029] Example 1

[0030] Because existing tube cutting machines have low cutting and unloading efficiency and pose safety hazards, a tube cutting machine for masking tape master rolls with easy unloading was designed. The specific solution is as follows:

[0031] like Figure 1-5 As shown, a masking tape master roll cutting machine includes a machine body 1, a mounting base 3 fixed on the machine body 1, an air shaft 4 rotating inside the mounting base 3, a drive motor at the lower part of the machine body 1, the output end of the drive motor being connected to one end of the air shaft 4, and the rotation of the air shaft 4 being controlled by the drive motor. A tube pushing mechanism 2 is mounted on the machine body 1, the tube pushing mechanism 2 including a bracket 201 and a motor 202. In this embodiment, two brackets 201 and a card holder 205 are fixedly connected to the machine body 1. The motor 202 is fixedly mounted on the bracket 201. The motor 202 is a servo motor to achieve precise adjustment. The output end of the motor 202 is connected to a lead screw 203 through a coupling. When the motor 202 starts, the lead screw 203 rotates along the inner wall of the bracket 201 and the card holder 205, thereby driving the slider 206 to move. The brackets 201 and the card holder 205 are fixedly connected. There are two limiting plates 204 symmetrically arranged about the lead screw 203. The lead screw 203 is rotatably connected to the bracket 205. A slider 206 is threaded onto the lead screw 203. A push rod 207 is fixedly installed on one slider 206. The slider 206 is limited by the limiting plates 204. Under the driving force of the lead screw 203, it can only slide along the inner wall of the limiting plates 204, thereby causing the push rod 207 or the tube cutter 6 fixed at the end to move. The push rod 207 is slidably connected to the air shaft 4. The part of the push rod 207 that contacts the air shaft 4 is set with an arc surface structure. The push rod 207 slides along the side wall of the air shaft 4, which can push the paper tube on the air shaft 4 to move, thereby unloading the cut paper tube. A tube cutter 6 is fixed on the other slider 206. The tube cutter 6 is fed by an electric push rod. The extension and retraction of the electric push rod is precisely controlled by a servo motor.

[0032] like Figure 5 As shown, in this embodiment, a support block 7 is fixedly installed at one end of the machine body 1 near the bracket 201. The support block 7 supports the end of the air shaft 4, which makes the air shaft 4 more stable when driving the paper tube to rotate, and helps to prevent the paper tube or the air shaft 4 from shaking. The part of the support block 7 that contacts the end of the air shaft 4 is set with an arc surface structure. In other solutions, the upper end of the support block 7 is a sleeve-shaped structure that can be sleeved with the end of the air shaft 4, so that the end of the air shaft 4 can rotate in the sleeve-shaped structure, ensuring that the end of the air shaft 4 is connected stably. The sleeve-shaped structure can be disassembled and removed along the axial direction of the air shaft 4 to achieve quick disassembly and assembly, and facilitate the installation of the paper tube on the air shaft 4.

[0033] like Figure 5 As shown, in this embodiment, a material guiding mechanism 5 is installed on the part of the machine body 1 near the support block 7. The material guiding mechanism 5 includes a material guiding plate 501 and a stop block 502. Two stop blocks 502 are engaged on the machine body 1. The material guiding plate 501 is fixedly connected to the stop block 502. When the push rod 207 pushes the cut paper tube to the end of the air shaft 4, the loosened paper tube will fall into the collection box along the material guiding plate 501 for storage. The material guiding plate 501 is set with an inclined structure. The stop block 502 is provided with an insertion hole 503. A locking block 504 is fixedly connected to the machine body 1. The stop block 502 and the locking block 504 are engaged. The locking block 504 limits the stop block 502, which makes it easy for the operator to disassemble and assemble the material guiding plate 501.

[0034] Working principle:

[0035] First, the operator places the paper tube to be cut onto the side wall of the air shaft 4. After the air shaft 4 is inflated, it expands and clamps the inner wall of the paper tube. As the air shaft 4 rotates along the mounting base 3, it can drive the paper tube to rotate as well. A support block 7 is installed at the end of the machine body 1 near the air shaft 4. After the paper tube is fixed, the support block 7 moves upward to support the end of the air shaft 4, thus ensuring the stability of the paper tube during rotation. The cutting blade 6 moves towards the side wall of the paper tube under the driving force of the electric push rod. When it is started, it can cut the rotating paper tube during high-speed rotation.

[0036] Then, turn on the motor 202 switch on the side near the tube cutter 6, causing it to drive the lead screw 203 to rotate within the bracket 201 and the holder 205. Since the slider 206 is limited by two limit plates 204, when the lead screw 203 rotates, the slider 206 can only slide within the limit plates 204. The tube cutter 6 and the slider 206 are fixedly connected. The slider 206 drives the tube cutter 6 to move, so that the tube cutter 6 cuts the paper tube into multiple pieces. After the paper tube is cut, turn on the motor 202 switch on the side away from the tube cutter 6. The lead screw 203 drives another slider 206 to slide, so that the push rod 207 fixed at its end slides along the side wall of the air shaft 4. During the movement, the push rod 207 can push the cut paper tube onto the guide plate 501, which facilitates the unloading speed of the paper tube and also helps to prevent the hand from being cut too close to the tube cutter 6 during manual unloading.

[0037] The guide plate 501 is set at an angle. The cut paper tube can fall into the receiving box along the guide plate 501. When the guide plate 501 needs to be disassembled, the bottom block 502 fixed to it can be removed from the clamping block 504 fixed on the machine body 1. When the bottom block 502 is separated from the clamping block 504, the guide plate 501 can be disassembled.

[0038] The tube cutter in this solution is equipped with a tube cutter 6 that can make precise displacement. It can automatically cut paper tubes on the air shaft 4 to different lengths. After cutting, the cut paper tubes can be pushed onto the guide plate 501 by sliding the push rod 207 along the air shaft 4. No manual intervention is required from the operator, which reduces the labor intensity and operation risk of the operator, improves the operation efficiency of the equipment, realizes automated unloading, and allows one operator to supervise multiple tube cutters at the same time.

[0039] Example 2

[0040] In this embodiment, the structure of the tube cutting machine is basically the same as that of Embodiment 1. The difference lies in that, based on Embodiment 1, the automated control and cutting accuracy of the tube cutting machine are further optimized. A pressure sensor is added to the mounting base of the tube cutting blade 6 to detect the contact pressure between the blade and the paper tube during the cutting process. When the pressure exceeds a set threshold, the servo motor automatically adjusts the feed speed to prevent overload or incomplete cutting.

[0041] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A gum tape roll cutting machine for a gum tape master roll, comprising a machine body, characterized by: The body is fixed with a mounting seat, the mounting seat rotates with a gas inflation shaft, the body is installed with a push tube mechanism, the push tube mechanism includes a support and a motor, the body is fixedly connected with two supports and a clamping seat, the support is fixedly installed with a motor, the output end of the motor is fixedly connected with a lead screw through a shaft coupling, the support and the clamping seat are fixedly connected with a limiting plate, the lead screw is threadedly connected with a sliding block, the sliding block and the limiting plate are slidably connected, one of the sliding blocks is fixedly installed with a push rod, the push rod and the gas inflation shaft are slidably connected, and the other of the sliding blocks is fixedly provided with a pipe cutting knife.

2. The cutting machine for the gummed paper tape master roll according to claim 1, characterized in that: The lead screw is rotatably connected with the clamping seat, the support is located at one end of the body away from the mounting seat, and the clamping seat is located at one end of the body close to the mounting seat.

3. The cutting machine for the gummed paper tape master roll according to claim 1, characterized in that: The two limiting plates are symmetrically arranged about the lead screw, and the part where the sliding block contacts the limiting plate is provided in an arc surface structure.

4. The cutting machine for the gummed paper tape master roll according to claim 1, characterized in that: The part where the push rod contacts the gas inflation shaft is provided in an arc surface structure, and the pipe cutting knife is located at the top of the gas inflation shaft.

5. The cutting machine for the gummed paper tape master roll according to claim 1, characterized in that: The diameter of the clamping seat is greater than the diameter of the lead screw, and the thickness of the clamping seat is less than the thickness of the mounting seat.

6. The cutting machine for the gummed paper tape master roll according to claim 1, characterized in that: The body is fixedly installed with a support block at one end close to the support, and the part where the support block contacts the end of the gas inflation shaft is provided in an arc surface structure.

7. The cutting machine for the gummed paper tape master roll according to claim 1, characterized in that: The body is installed with a material guiding mechanism at a part close to the support block, the material guiding mechanism includes a material guiding plate and a resisting block, the body is clamped with two resisting blocks, the resisting block is fixedly connected with a material guiding plate, the resisting block is provided with a insertion hole, and the body is fixedly connected with a clamping block.

8. The cutting machine for the gummed paper tape master roll according to claim 7, characterized in that: The two resisting blocks and the clamping block are symmetrically arranged about the support block, and the material guiding plate is provided in an inclined surface structure.

9. The cutting machine for the gummed paper tape master roll according to claim 8, characterized in that: The resisting block and the clamping block are clamped and connected, and the height of the clamping block is greater than the height of the insertion hole.

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