Slitting device for PE plastic film production

Abstract

The utility model relates to the technical field of film production, and discloses a slitting device for PE plastic film production, which comprises a machine tool and a mounting shaft fixed on the inner wall of the machine tool, and further comprises a tool apron sliding on the surface of the mounting shaft, the inner cavity of the tool apron is in sliding connection with a tool bit, and the inner wall of the machine tool is in bolted connection with a fixed shell. A protective shell is bolted to one side of the bottom of the fixed shell, a synchronizing mechanism is arranged in the protective shell, and connecting blocks are arranged on the two sides of the synchronizing mechanism; through cooperation of the synchronizing mechanism, the connecting block and the linkage mechanism, the tool apron can drive the multiple tool bits to move synchronously, workers do not need to manually adjust the tool bits one by one, the workload of the workers is reduced, the adjusting efficiency is improved, under cooperation of the auxiliary mechanism, the sliding rod and the positioning groove, auxiliary tools do not need to be used during replacement, and the replacement efficiency is improved. And the workload of workers is reduced, replacement of the tool bit in the follow-up using process is more convenient, and the replacement speed is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of film production, in particular to a slitting device for PE plastic film production. Background Art

[0002] PE protective film is the simplest macromolecular organic compound and the most widely used macromolecular material in the world today. It is widely used in the packaging of food, electronic products, cosmetics, etc. It has excellent barrier properties, transparency and low cost. A slitting device is required in the production process to divide it into different widths for subsequent use.

[0003] During the film production process, the slitting device needs to slit into different sizes according to customer requirements. Some slitting devices do not have the function of adjusting the position of the cutter head and require manual adjustment by the staff. This method is inefficient. At the same time, multiple cutter heads need to be adjusted to equal distances one by one, which is more cumbersome.

[0004] During the use of the slitting device, the cutter head will be worn out due to long-term use. Currently, most cutter heads are fixed by bolts. When replacing, auxiliary tools are needed to unscrew the bolts and then replace the cutter head. This method has a low replacement speed. In addition, the cutter seat is close to the inside of the device and the space is small. It is inconvenient to use auxiliary tools to loosen the bolts, and the replacement efficiency cannot be further improved. Utility Model Content

[0005] The purpose of the utility model is to provide a slitting device for producing PE plastic film to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a slitting device for producing PE plastic film, comprising a machine tool and a mounting shaft fixed to the inner wall of the machine tool, and also comprising:

[0007] A tool holder slides on the surface of the mounting shaft, a tool head is slidably connected to the inner cavity of the tool holder, a fixed shell is bolted to the inner wall of the machine tool, a protective shell is bolted to one side of the bottom of the fixed shell, a synchronization mechanism is arranged inside the protective shell, and connection blocks are arranged on both sides of the synchronization mechanism;

[0008] A linkage mechanism is arranged on one side of the knife seat, and a positioning mechanism is arranged on the top of the knife seats at both ends. Positioning grooves are opened on one side of the knife seat surface and one side of the knife head surface. A sliding rod is slidably connected inside the positioning groove, and an auxiliary mechanism is arranged on one side of the knife seat surface.

[0009] Preferably, the synchronization mechanism includes a stepper motor bolted to the bottom of the inner wall of the protective shell and a spur gear fixed to the output shaft of the stepper motor, and rack plates are meshed and connected on both sides of the surface of the spur gear, and the rack plate is slidably connected to the inner wall of the fixed shell.

[0010] Preferably, the linkage mechanism includes a fixed rod fixed to one side of the knife seat surface and a first connecting rod rotated on one side of the fixed rod surface, one side of the fixed rod surface is rotatably connected to the second connecting rod, one side of the first connecting rod and the second connecting rod surface are both rotatably connected to auxiliary rods, one side of the lower auxiliary rod surface is rotatably connected to the third connecting rod, one side of the upper auxiliary rod surface is rotatably connected to the fourth connecting rod, and the inner walls of the third connecting rod and the fourth connecting rod are both rotatably connected to the surface of the fixed rod on the other side.

[0011] Preferably, the positioning mechanism includes a connecting shell bolted to the top of the knife seat and a turntable rotating on the inner wall of the connecting shell, the positioning mechanism also includes a first telescopic spring fixed to the top of the turntable and a twist block fixed to the other end of the first telescopic spring, a disassembly rod is bolted to the bottom of the twist block, the first telescopic rod is fixedly connected to both sides of the top of the turntable, and the top of the first telescopic rod is fixedly connected to the bottom of the twist block.

[0012] Preferably, the auxiliary mechanism includes a second telescopic rod fixed to one side of the knife seat surface and a connecting plate bolted to one end of the second telescopic rod, one side of the connecting plate surface is fixedly connected to a second telescopic spring, the other end of the second telescopic spring is fixedly connected to one side of the second telescopic rod surface, and one side of the connecting plate surface and one side of the sliding rod surface are bolted to each other.

[0013] Preferably, both sides of the inner wall of the fixed shell are provided with sliding grooves, the inner wall of the sliding groove is slidably connected with a slider, and one side of the surface of the slider and one side of the surface of the rack plate are bolted to each other.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model can enable the tool holder to drive multiple tool heads to achieve synchronous movement through the cooperation of the synchronization mechanism, the connecting block and the linkage mechanism. There is no need for staff to adjust them one by one manually, which reduces the workload of staff and improves the adjustment efficiency. With the cooperation of the auxiliary mechanism, the sliding rod and the positioning groove, there is no need to use bolts to fix the tool heads, and there is no need to use auxiliary tools when replacing them, which reduces the workload of staff, makes it more convenient to replace the tool heads during subsequent use, and improves the replacement speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the fixed shell and the protective shell in the utility model;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the fixed shell and the rack plate in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the linkage mechanism in the utility model;

[0020] Figure 5 It is a structural schematic diagram of the positioning mechanism in the utility model;

[0021] Figure 6 It is a schematic diagram of the cross-sectional structure of the knife holder and the knife head in the utility model.

[0022] In the figure: 1. machine tool; 2. mounting shaft; 3. tool holder; 4. fixing shell; 5. protective shell; 6. synchronization mechanism; 61. stepping motor; 62. spur gear; 63. rack plate; 7. connecting block; 8. linkage mechanism; 81. fixing rod; 82. first connecting rod; 83. second connecting rod; 84. third connecting rod; 85. fourth connecting rod; 86. auxiliary rod; 9. tool head; 10. positioning mechanism; 101. connecting shell; 102. turntable; 103. first telescopic spring; 104. disassembly rod; 105. screw block; 11. first telescopic rod; 12. positioning groove; 13. slide rod; 14. auxiliary mechanism; 141. second telescopic rod; 142. second telescopic spring; 143. connecting plate; 15. slide groove; 16. slider. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6As shown, a slitting device for producing PE plastic film includes a machine tool 1, an inner wall of the machine tool 1 is fixedly connected with a mounting shaft 2, a surface of the mounting shaft 2 is slidably connected with a knife seat 3, the number of the knife seats 3 is several, the knife seat 3 is composed of a mounting seat and a bolt, the inner cavity of the knife seat 3 is slidably connected with a knife head 9, the inner wall of the machine tool 1 is bolted with a fixed shell 4, a side of the bottom of the fixed shell 4 is bolted with a protective shell 5, a synchronization mechanism 6 is arranged inside the protective shell 5, connecting blocks 7 are arranged on both sides of the synchronization mechanism 6, under the action of the synchronization mechanism 6, the connecting blocks 7 on both sides can be driven to move in opposite directions, the connecting blocks 7 and the tops of the knife seats 3 at both ends are bolted to each other, so that when the connecting blocks 7 move, the knife seats 3 at both ends can be driven to move in opposite directions at the same time, a linkage mechanism 8 is arranged on one side of the knife seat 3, the linkage mechanism 8, the knife head 9, and the knife seat 3 are used in combination, when the knife seats 3 at both ends move, the linkage mechanism 8 can be driven to operate, and the linkage mechanism When the tool holder 3 is in operation, it can drive the other tool holder 3 to move synchronously. When the tool holder 3 moves, the cutter head 9 can move synchronously. Positioning mechanisms 10 are arranged on the top of the tool holders 3 at both ends. The positioning mechanisms 10, the tool holder 3 and the mounting shaft 2 are used together. Under the action of the positioning mechanisms 10, there is no need to manually use auxiliary tools to tighten the bolts of the tool holder 3, so that the bolts of the tool holder 3 are fitted into the mounting shaft 2, so that the tool holder 3 will not move easily. Positioning grooves 12 are provided on one side of the surface of the tool holder 3 and one side of the surface of the cutter head 9. A slide bar 13 is slidably connected inside the positioning groove 12. Under the action of the slide bar 13 and the positioning groove 12, the cutter head 9 can be positioned to prevent the cutter head 9 from moving easily when the slitting device is in operation. An auxiliary mechanism 14 is arranged on one side of the surface of the tool holder 3. The auxiliary mechanism 14 is used together with the slide bar 13. Under the action of the auxiliary mechanism 14, the slide bar 13 can be limited to prevent the slide bar 13 from moving easily.

[0025] The synchronization mechanism 6 includes a stepper motor 61, one side of the surface of the stepper motor 61 is bolted to the bottom of the inner wall of the protective shell 5, the output shaft of the stepper motor 61 passes through one side of the bottom of the fixed shell 4 and is rotatably connected to the penetration, the output shaft of the stepper motor 61 is fixedly connected to a spur gear 62, and the spur gear 62 can be rotated under the action of the stepper motor 61, both sides of the surface of the spur gear 62 are meshed and connected with rack plates 63, the rack plate 63 is slidably connected to the inner wall of the fixed shell 4, when the spur gear 62 rotates, the rack plates 63 on both sides can be synchronously moved in opposite directions, the top of the rack plate 63 is bolted to the bottom of the connecting block 7, when the rack plate 63 moves, the connecting block 7 can be driven to move, both sides of the inner wall of the fixed shell 4 are provided with slide grooves 15, the inner wall of the slide groove 15 is slidably connected with a slider 16, one side of the surface of the slider 16 is bolted to one side of the surface of the rack plate 63, under the action of the slider 16, the rack plate 63 can be moved more stably.

[0026] The linkage mechanism 8 includes a fixed rod 81, one end of which is fixedly connected to one side of the surface of the knife holder 3, one side of the surface of the fixed rod 81 is rotatably connected to a first connecting rod 82, one side of the surface of the fixed rod 81 is rotatably connected to a second connecting rod 83, one side of the surface of the first connecting rod 82 and the second connecting rod 83 is rotatably connected to an auxiliary rod 86, one side of the surface of the lower auxiliary rod 86 is rotatably connected to a third connecting rod 84, one side of the surface of the upper auxiliary rod 86 is rotatably connected to a fourth connecting rod 85, the inner walls of the third connecting rod 84 and the fourth connecting rod 85 are both rotatably connected to the surface of the fixed rod 81 on the other side, and when the knife holders 3 at both ends move, the fixed rod 81 can be driven When the second and third links 83 and 84 rotate, the auxiliary rod 86 can be moved. When the auxiliary rod 86 moves, the third and fourth links 84 and 85 can be rotated at the same time. When the third and fourth links 84 and 85 rotate, the fixed rod 81 on the other side can be moved. When the fixed rod 81 on the other side moves, the tool holder 3 on the other side can be moved. Similarly, the other tool holders 3 can be moved at the same time, thereby realizing the synchronous adjustment of the distance between the tool holders 3. When the tool holder 3 moves, the distance to the tool head 9 can be adjusted, thereby reducing the workload of the staff.

[0027] The positioning mechanism 10 includes a connecting shell 101, the bottom of the connecting shell 101 and the top of the knife seat 3 are bolted to each other, the inner wall of the connecting shell 101 is rotatably connected to a turntable 102, the top of the turntable 102 is fixedly connected to a first telescopic spring 103, the other end of the first telescopic spring 103 is fixedly connected to a screw block 105, and the bottom of the screw block 105 is bolted to a disassembly rod 104. When the position adjustment of the knife seat 3 is completed, the screw block 105 is pressed down. When the screw block 105 descends, the first telescopic spring 103 can be compressed, and the disassembly rod 104 can be descended at the same time. When the disassembly rod 104 enters the hexagonal hole of the bolt of the knife seat 3, the screw block is rotated. 105. When the screw block 105 rotates, the first telescopic spring 103 can be driven to rotate. When the first telescopic spring 103 rotates, the turntable 102 can be driven to rotate, and the disassembly rod 104 can be driven to rotate at the same time. When the disassembly rod 104 rotates, the bolts of the knife holder 3 can be released from the contact with the mounting shaft 2, so that the knife holder 3 can be moved without the need to use auxiliary tools for disassembly. The first telescopic rods 11 are fixedly connected to both sides of the top of the turntable 102. The top of the first telescopic rod 11 is fixedly connected to the bottom of the screw block 105. Under the action of the first telescopic rod 11, the screw block 105 can be supported to prevent the screw block 105 from deflecting.

[0028] The auxiliary mechanism 14 includes a second telescopic rod 141, one side of the surface of the second telescopic rod 141 is fixedly connected to one side of the surface of the knife seat 3, the other end of the second telescopic rod 141 is bolted with a connecting plate 143, one side of the surface of the connecting plate 143 is fixedly connected with a second telescopic spring 142, the other end of the second telescopic spring 142 is fixedly connected to one side of the surface of the second telescopic rod 141, one side of the surface of the connecting plate 143 and one side of the surface of the sliding rod 13 are bolted to each other, when the limit on the cutter head 9 is to be released, the staff pulls the connecting plate 143, when the connecting plate 143 moves, it can drive the second telescopic rod 141 to extend and stretch the connecting plate 143, and at the same time drive the sliding rod 13 to move, when the sliding rod 13 moves out of the positioning groove 12 opened on the surface of the cutter head 9, the limit on the cutter head 9 can be released.

[0029] Working principle: When the specification of the film needs to be changed, the screw block 105 is pressed down. When the screw block 105 is lowered, the first telescopic spring 103 can be compressed, and the disassembly rod 104 can be lowered at the same time. After the disassembly rod 104 enters the hexagonal hole of the bolt of the knife seat 3, the screw block 105 is rotated. When the screw block 105 rotates, the first telescopic spring 103 can be driven to rotate. When the first telescopic spring 103 rotates, the turntable 102 can be driven to rotate, and the disassembly rod 104 can be driven to rotate, so that the bolt of the knife seat 3 is released and the limit between the mounting shaft 2 is released. The staff turns on the stepper motor 61, and the spur gear 62 can be rotated under the action of the stepper motor 61. When the spur gear 62 rotates, the rack plates 63 on both sides can be synchronously moved in opposite directions. When the rack plates 63 move, the connecting block 7 can be driven to move. When the connecting block 7 moves, the knife seats 3 at both ends can be moved. When the knife seats 3 at both ends move, the fixed rod 81 can be driven to move. When the fixed rod 81 moves, the second connecting rod 83 and the third connecting rod 84 can be driven to rotate at the same time. When the second connecting rod 83 and the third connecting rod 84 rotate, The auxiliary rod 86 can be moved. When the auxiliary rod 86 moves, the third connecting rod 84 and the fourth connecting rod 85 can be rotated at the same time. When the third connecting rod 84 and the fourth connecting rod 85 rotate, the fixed rod 81 on the other side can be moved. When the fixed rod 81 on the other side moves, the knife holder 3 on the other side can be moved. Similarly, the other knife holder 3 can be moved at the same time. When the knife holder 3 moves, the knife head 9 can be adjusted synchronously. When the knife holder 3 needs to be replaced, the connecting plate 143 is pulled. When the connecting plate 143 moves, the second telescopic rod 141 can be extended. The connecting plate 143 can be stretched and the sliding rod 13 can be driven to move. When the sliding rod 13 moves out of the positioning groove 12 provided on the surface of the cutter head 9, the limit on the cutter head 9 can be released. When the replacement is completed, the connecting plate 143 is loosened and the second telescopic spring 142 rebounds. When the second telescopic spring 142 rebounds, the connecting plate 143 can be driven to return to its original position. When the connecting plate 143 moves, the second telescopic rod 141 can be driven to contract. At the same time, the sliding rod 13 can enter the positioning groove 12 provided on the surface of the cutter head 9 to limit the cutter head 9.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A slitting device for producing PE plastic film, comprising a machine tool (1) and a mounting shaft (2) fixed to the inner wall of the machine tool (1), It is characterized in that Also includes: A tool holder (3) slides on the surface of the mounting shaft (2), a tool head (9) is slidably connected to the inner cavity of the tool holder (3), a fixed shell (4) is bolted to the inner wall of the machine tool (1), a protective shell (5) is bolted to one side of the bottom of the fixed shell (4), a synchronization mechanism (6) is arranged inside the protective shell (5), and connection blocks (7) are arranged on both sides of the synchronization mechanism (6); A linkage mechanism (8) is arranged on one side of the knife seat (3), and a positioning mechanism (10) is arranged on the top of the knife seat (3) at both ends. A positioning groove (12) is opened on one side of the surface of the knife seat (3) and one side of the surface of the knife head (9). A sliding rod (13) is slidably connected inside the positioning groove (12), and an auxiliary mechanism (14) is arranged on one side of the surface of the knife seat (3).

2. A slitting device for producing PE plastic film according to claim 1, Features: The synchronization mechanism (6) comprises a stepper motor (61) bolted to the bottom of the inner wall of the protective shell (5) and a spur gear (62) fixed to the output shaft of the stepper motor (61), and rack plates (63) are meshedly connected on both sides of the surface of the spur gear (62), and the rack plate (63) is slidably connected to the inner wall of the fixed shell (4).

3. A slitting device for producing PE plastic film according to claim 1, Features: The linkage mechanism (8) comprises a fixed rod (81) fixed to one side of the surface of the knife seat (3) and a first connecting rod (82) rotatable on one side of the surface of the fixed rod (81); one side of the surface of the fixed rod (81) is rotatably connected to a second connecting rod (83); one side of the surfaces of the first connecting rod (82) and the second connecting rod (83) are rotatably connected to an auxiliary rod (86); one side of the surface of the lower auxiliary rod (86) is rotatably connected to a third connecting rod (84); one side of the surface of the upper auxiliary rod (86) is rotatably connected to a fourth connecting rod (85); the inner walls of the third connecting rod (84) and the fourth connecting rod (85) are rotatably connected to the surface of the fixed rod (81) on the other side.

4. A slitting device for producing PE plastic film according to claim 1, Features: The positioning mechanism (10) comprises a connecting shell (101) bolted to the top of the knife seat (3) and a rotating disk (102) rotating on the inner wall of the connecting shell (101); the positioning mechanism (10) further comprises a first telescopic spring (103) fixed to the top of the rotating disk (102) and a twist block (105) fixed to the other end of the first telescopic spring (103); a disassembly rod (104) is bolted to the bottom of the twist block (105); first telescopic rods (11) are fixedly connected to both sides of the top of the rotating disk (102); and the top of the first telescopic rod (11) is fixedly connected to the bottom of the twist block (105).

5. A slitting device for producing PE plastic film according to claim 1, Features: The auxiliary mechanism (14) comprises a second telescopic rod (141) fixed to one side of the surface of the knife seat (3) and a connecting plate (143) bolted to one end of the second telescopic rod (141); one side of the surface of the connecting plate (143) is fixedly connected to a second telescopic spring (142); the other end of the second telescopic spring (142) is fixedly connected to one side of the surface of the second telescopic rod (141); one side of the surface of the connecting plate (143) is bolted to one side of the surface of the sliding rod (13).

6. A slitting device for producing PE plastic film according to claim 2, Features: Slide grooves (15) are provided on both sides of the inner wall of the fixed shell (4), and a slider (16) is slidably connected to the inner wall of the slide groove (15), and one side of the surface of the slider (16) is bolted to one side of the surface of the rack plate (63).

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