Slitting device for heat-shrinkable tape

Abstract

The utility model provides a thermal contraction band slitting device which comprises a working table, a rotating frame is arranged on the left side of the upper end of the working table, a guide roller is rotationally connected into the rotating frame, a connecting plate is further arranged on the right side of the upper end of the working table, a fixed roller is rotationally arranged at the lower end of the interior of the connecting plate, and two sliding blocks are slidably connected into the connecting plate. And a moving roller is arranged between the two sliding blocks, the upper end of the connecting plate is provided with a first electric driving unit for driving the sliding blocks to move, and the upper end of the workbench is provided with a quick assembly and disassembly slitting mechanism. According to the thermal contraction band slitting device, when the slitting knife is abraded or needs to be replaced, the slitting knife can be rapidly disassembled for maintenance without the help of an external tool, the device is convenient for personnel to use, the time for replacing the slitting knife is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat shrinkable tape production, and particularly relates to a heat shrinkable tape slitting device. Background Art

[0002] Heat shrink tape is a material used for pipeline corrosion protection. It is made of irradiated cross-linked polyethylene substrate and coated with hot melt sealant on the inside. When heated for installation, the heat shrink tape will shrink radially while melting the internal composite adhesive layer, thus tightly wrapping the outer wall of the pipeline to form a strong and durable anti-corrosion protective layer. Heat shrink tape has the characteristics of easy installation, simple operation, and reliable performance. It is suitable for long-distance transportation pipeline welds in the oil and gas industry and other pipeline interfaces that require anti-corrosion treatment. The existing heat shrink tape slitting device’s slitting knife is not easy to disassemble and replace.

[0003] For example, the utility model with announcement number CN209367511U discloses an automatic deviation correction and slitting device for heat shrinkable tape, in which the cutter is slidably connected to the cutter rod through a cutter seat, and a fastening bolt is provided on the cutter seat, and the cutter seat is tightened against the cutter rod by the fastening bolt. In this patent scheme, the heat shrinkable tape is cut by the cutter. When the blade is worn or needs to be replaced, the cutter needs to be disassembled by twisting the bolt with the help of an external tool, resulting in a long time for replacing the cutter, which is inconvenient for personnel to disassemble and replace, and indirectly affects the production efficiency. Utility Model Content

[0004] In view of this, the utility model aims to provide a heat shrink tape slitting device to address the deficiencies in the prior art. When the slitting knife is worn or needs to be replaced, the slitting knife can be quickly disassembled for maintenance without the aid of external tools, which is convenient for personnel to use, reduces the time for replacing the slitting knife, and improves production efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a heat shrinkable tape slitting device, including a workbench, a rotating frame is arranged on the left side of the upper end of the workbench, the internal rotation of the rotating frame is connected with a guide roller, a connecting plate is also arranged on the right side of the upper end of the workbench, a fixed roller is rotatably arranged on the lower end of the connecting plate, two sliding blocks are slidably connected to the inside of the connecting plate, a moving roller is arranged between the two sliding blocks, an electric drive unit 1 for driving the sliding blocks to move is arranged on the upper end of the connecting plate, a quick-install splitting and cutting mechanism is arranged on the upper end of the workbench, the electric drive unit 1 includes two electric push rods 1 arranged on the upper end of the connecting plate, the two electric push rods 1 are respectively connected to the upper ends of adjacent sliding blocks, the quick-install splitting and cutting mechanism includes a frame plate arranged on the upper end of the workbench, the internal sliding of the frame plate Two sliding plates are connected, and slitting knives are slidably connected inside the two sliding plates. Locking columns are slidably connected in the through holes opened in the two sliding plates. Locking holes are opened on the left sides of the two slitting knives. The two locking columns are respectively plugged into adjacent locking holes. Pull disks are provided on the left sides of the two locking columns. Springs are respectively provided between the pull disks and the sliding plates. The springs are respectively sleeved on the outer arc surfaces of the corresponding locking columns. A two-way screw is rotatably provided on the upper end of the frame plate. The upper ends of the two sliding plates are respectively connected to the left and right corresponding ends of the two-way screw. An electric drive unit 2 for driving the two-way screw to rotate is provided on the rear side of the frame plate. A limiting mechanism is provided on the right side of the frame plate. The electric drive unit 2 includes a motor arranged on the rear side of the frame plate, and the output shaft of the motor is connected to the rear end of the two-way screw through a coupling.

[0006] As a further improvement of the utility model, the limiting mechanism includes a rectangular plate arranged on the right side of the frame plate, and two electric push rods are arranged on the outer sides of the two rectangular plates, and a limiting plate is arranged on the telescopic end of the two electric push rods.

[0007] As a further improvement of the utility model, a control panel is arranged at the upper end of the workbench, and the motor, the first electric push rod and the second electric push rod are all electrically connected to the control panel.

[0008] As a further improvement of the utility model, a support frame is provided at the lower end of the workbench, and support feet are respectively welded and fixed at the four corners of the lower end of the support frame.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] Firstly, the heat shrinkable tape to be cut is passed between the fixed roller and the movable roller, and then the electric push rod is controlled to start running. The telescopic end drives the movable roller on the sliding block to move downward to cooperate with the fixed roller to achieve the upper and lower limit of the heat shrinkable tape, thereby preventing the heat shrinkable tape from moving up and down during cutting.

[0011] Secondly, by passing the heat shrinkable tape between the limit plates on both sides, and then controlling the electric push rod to open and run, the telescopic end drives the limit plates on both sides to approach each other to limit the two sides of the heat shrinkable tape, and then the heat shrinkable tape is passed through the lower end of the slitting knife and then through the lower end of the guide roller, and the heat shrinkable tape is fixed on the external rotating winding roller. By driving the winding roller to rotate, the heat shrinkable tape moves through the slitting knife for slitting, thereby preventing the heat shrinkable tape from moving forward and backward during slitting.

[0012] Thirdly, by pulling the pull plate, the locking column is driven to leave the locking hole. At this time, the spring is in a stretched state, and then the old slitting knife is slid out from the inside of the sliding plate, and then the new slitting knife is inserted into the inside of the sliding plate. Then the pull plate is released, and the spring contracts rapidly, so that the locking column is inserted into the locking hole, thereby locking the slitting knife. The slitting knife can be quickly disassembled for maintenance without the aid of external tools, which is convenient for personnel to use, reduces the time for replacing the slitting knife, and improves production efficiency.

[0013] Fourthly, the slitting device can be stably supported by the support frame and the support feet at the lower end of the workbench, so that the operation of the slitting device is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the enlarged structure of point A of the utility model;

[0017] Figure 3 This is a left-side structural schematic diagram of the frame plate of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the sliding plate and the slitting knife of the utility model.

[0019] In the figure: 101, workbench; 102, support frame; 103, support foot; 104, rotating frame; 105, guide roller; 201, connecting plate; 202, fixed roller; 203, sliding block; 204, moving roller; 205, electric push rod 1; 301, bidirectional screw rod; 302, sliding plate; 303, frame plate; 304, motor; 305, rectangular plate; 306, electric push rod 2; 307, limit plate; 308, pull plate; 309, slitting knife; 310, spring; 311, locking column; 312, locking hole; 401, control panel. DETAILED DESCRIPTION

[0020] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0021] like Figure 1 , 2 As shown in Figures 3 and 4, a heat shrink tape slitting device comprises a workbench 101, a rotating frame 104 is arranged on the left side of the upper end of the workbench 101, and a guide roller 105 is rotatably connected inside the rotating frame 104, a connecting plate 201 is also arranged on the right side of the upper end of the workbench 101, a fixed roller 202 is rotatably arranged on the lower end of the connecting plate 201, two sliding blocks 203 are slidably connected inside the connecting plate 201, a moving roller 204 is arranged between the two sliding blocks 203, an electric driving unit 1 for driving the sliding blocks 203 to move is arranged on the upper end of the connecting plate 201, and a quick-install splitting and cutting mechanism is arranged on the upper end of the workbench 101, the electric driving unit 1 comprises two electric push rods 1 205 arranged on the upper end of the connecting plate 201, and the two electric push rods 1 205 are respectively connected to the upper ends of adjacent sliding blocks 203.

[0022] like Figure 1 , 3 As shown in 4, the quick-install splitting and cutting mechanism includes a frame plate 303 arranged at the upper end of the workbench 101, and two sliding plates 302 are slidably connected inside the frame plate 303, and slitting knives 309 are slidably connected inside the two sliding plates 302, and locking columns 311 are slidably connected in the through holes opened in the two sliding plates 302, and locking holes 312 are opened on the left sides of the two slitting knives 309, and the two locking columns 311 are respectively plugged into the adjacent locking holes 312, and pull plates 308 are arranged on the left sides of the two locking columns 311, and springs 310 are respectively arranged between the pull plates 308 and the sliding plates 302, and the springs 310 are respectively sleeved on the outer arc surfaces of the corresponding locking columns 311. A bidirectional screw rod 301 is rotatably provided at the upper end of the plate 303, and the upper ends of the two sliding plates 302 are respectively connected to the left and right corresponding ends of the bidirectional screw rod 301, and an electric drive unit 2 for driving the bidirectional screw rod 301 to rotate is provided on the rear side of the frame plate 303. A limiting mechanism is provided on the right side of the frame plate 303. The electric drive unit 2 includes a motor 304 provided on the rear side of the frame plate 303, and the output shaft of the motor 304 is connected to the rear end of the bidirectional screw rod 301 through a coupling. The limiting mechanism includes a rectangular plate 305 provided on the right side of the frame plate 303, and electric push rods 306 are provided on the outer sides of the two rectangular plates 305, and limiting plates 307 are provided on the telescopic ends of the electric push rods 306.

[0023] like Figure 1 As shown, a control panel 401 is disposed at the upper end of the workbench 101 , and the motor 304 , the electric push rod 1 205 and the electric push rod 2 306 are all electrically connected to the control panel 401 .

[0024] The heat shrinkable tape to be cut is passed between the fixed roller 202 and the movable roller 204, and then the control panel 401 is used to control the electric push rod 1 205 to be turned on. The telescopic end drives the movable roller 204 on the sliding block 203 to move downward to cooperate with the fixed roller 202 to achieve the upper and lower limits of the heat shrinkable tape, and then the heat shrinkable tape is passed between the limit plates 307 on both sides. Then, the control panel 401 is used to control the electric push rod 2 306 to be turned on. The telescopic end drives the limit plates 307 on both sides to approach each other to limit the two sides of the heat shrinkable tape, and then the heat shrinkable tape is passed through the lower end of the slitting knife 309 and then through the lower end of the guide roller 105, and the heat shrinkable tape is fixed on the external rotating winding roller. By driving the winding roller to rotate, the heat shrinkable tape moves through the slitting knife 309 for slitting.

[0025] The control panel 401 is used to control the motor 304 to start running, and the output shaft rotates to drive the bidirectional screw rod 301 to rotate, so that the slitting knives 309 on the sliding plates 302 on both sides can move to adjust the slitting size of the heat shrinkable tape.

[0026] When the worn slitting knife 309 needs to be replaced, the pull plate 308 is pulled to drive the locking column 311 to leave the locking hole 312. At this time, the spring 310 is in a stretched state, and the old slitting knife 309 is slid out from the sliding plate 302, and the new slitting knife 309 is inserted into the sliding plate 302. The pull plate is then released, and the spring 310 contracts rapidly, causing the locking column 311 to be inserted into the locking hole 312, thereby locking the slitting knife 309.

[0027] According to another embodiment of the present invention, Figure 1 As shown, a support frame 102 is provided at the lower end of the workbench 101, and support legs 103 are welded and fixed to the four corners of the lower end of the support frame 102. The support frame 102 and the support legs 103 at the lower end of the workbench 101 can stably support the slitting device.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A heat shrink tape slitting device, comprising a workbench (101), characterized in that: A rotating frame (104) is arranged on the left side of the upper end of the workbench (101), and a guide roller (105) is rotatably connected inside the rotating frame (104). A connecting plate (201) is also arranged on the right side of the upper end of the workbench (101), and a fixed roller (202) is rotatably arranged at the lower end of the connecting plate (201). Two sliding blocks (203) are slidably connected inside the connecting plate (201), and a moving roller (204) is arranged between the two sliding blocks (203). An electric drive unit 1 for driving the sliding block (203) to move is arranged on the upper end of the connecting plate (201), and a quick-installation splitting and cutting mechanism is arranged on the upper end of the workbench (101).

2. A heat shrink tape slitting device as claimed in claim 1, characterized in that: The electric drive unit 1 comprises two electric push rods 1 (205) arranged on the upper end of the connecting plate (201), and the two electric push rods 1 (205) are respectively connected to the upper ends of adjacent sliding blocks (203).

3. A heat shrink tape slitting device as claimed in claim 2, characterized in that: The quick-install splitting and cutting mechanism comprises a frame plate (303) arranged at the upper end of the workbench (101), two sliding plates (302) are slidably connected inside the frame plate (303), a slitting knife (309) is slidably connected inside the two sliding plates (302), a locking column (311) is slidably connected in the through holes provided inside the two sliding plates (302), a locking hole (312) is provided on the left side of the two slitting knives (309), the two locking columns (311) are respectively plugged into the adjacent locking holes (312), and the left sides of the two locking columns (311) are A pull plate (308) is provided, and a spring (310) is provided between the pull plate (308) and the sliding plate (302), and the spring (310) is respectively sleeved on the outer arc surface of the corresponding locking column (311). A bidirectional screw rod (301) is rotatably provided at the upper end of the frame plate (303), and the upper ends of the two sliding plates (302) are respectively connected to the left and right corresponding ends of the bidirectional screw rod (301), and an electric drive unit 2 for driving the bidirectional screw rod (301) to rotate is provided on the rear side of the frame plate (303), and a limiting mechanism is provided on the right side of the frame plate (303).

4. A heat shrink tape slitting device as claimed in claim 3, characterized in that: The second electric drive unit comprises a motor (304) arranged at the rear side of the frame plate (303), and the output shaft of the motor (304) is connected to the rear end of the bidirectional screw rod (301) through a coupling.

5. A heat shrink tape slitting device as claimed in claim 4, characterized in that: The limiting mechanism comprises a rectangular plate (305) arranged on the right side of the frame plate (303), the outer sides of the two rectangular plates (305) are each provided with a second electric push rod (306), and a limiting plate (307) is each provided on the telescopic end of the second electric push rod (306).

6. A heat shrink tape slitting device as claimed in claim 1, characterized in that: A support frame (102) is provided at the lower end of the workbench (101), and support legs (103) are respectively welded and fixed at the four corners of the lower end of the support frame (102).

7. A heat shrink tape slitting device as claimed in claim 5, characterized in that: A control panel (401) is disposed at the upper end of the workbench (101), and the motor (304), the first electric push rod (205) and the second electric push rod (306) are all electrically connected to the control panel (401).

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