Membrane material slitting device

Abstract

A membrane material slitting device comprises a support, a cutter shaft assembly, a cutter shaft driving assembly, a membrane material positioning shaft, a rotating frame and a rotating shaft, the cutter shaft driving assembly and the membrane material positioning shaft are arranged on the support, the rotating shaft is used for driving the rotating frame to rotate, the cutter shaft assembly is detachably installed on the rotating frame, and the membrane material positioning shaft, the rotating shaft and the cutter shaft assembly are arranged in parallel. A first locking assembly is arranged between one end of the rotating shaft and the support, and a second locking assembly is arranged between the other end of the rotating shaft and the support. During normal work, the two ends of the rotating shaft are locked to the support through the first locking assembly and the second locking assembly respectively, a membrane material penetrates through the position between the cutter shaft assembly and the membrane material positioning shaft, and the cutter shaft driving assembly drives the cutter shaft assembly to rotate to complete slitting. When the cutter shaft assembly needs to be replaced, the first locking assembly and the second locking assembly are unlocked, the rotating shaft drives the rotating frame to rotate, and the cutter shaft assembly rotates along with the rotating frame, so that the cutter shaft assembly is separated from the cutter shaft driving assembly and the membrane material positioning shaft, the operation space is increased, then the cutter shaft assembly is detached from the rotating frame, and disassembly and assembly are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of food and drug packaging machinery, in particular to a film material slitting device. Background Art

[0002] For products packaged in strip packages, it is necessary to first use a roll film slitting device to slit the roll film into rectangular strips, and then perform filling, transverse sealing, and longitudinal sealing. The roll film slitting device mainly includes a cutter shaft and a plurality of cutters mounted on the cutter shaft. During the production process, the cutters need to be replaced relatively frequently (for example, when the cutting edges of the cutters become dull). The existing roll film slitting devices are limited by the operating space and are inconvenient to disassemble and assemble. It is often difficult to quickly remove the cutter shaft, resulting in the replacement of the cutters seriously affecting the production progress. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a film material slitting device with a simple structure, good reliability, and convenient disassembly and assembly of the cutter shaft assembly.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A film material slitting device includes a bracket, a cutter shaft assembly, a cutter shaft drive assembly and a film material positioning shaft arranged on the bracket, and further includes a rotating frame and a rotating shaft for driving the rotating frame to rotate. The cutter shaft assembly is detachably installed on the rotating frame. The film material positioning shaft, the rotating shaft and the cutter shaft assembly are arranged in parallel. A first locking assembly is provided between one end of the rotating shaft and the bracket, and a second locking assembly is provided between the other end of the rotating shaft and the bracket.

[0006] As a further improvement of the above technical solution: The first locking assembly includes a rotating arm and a first locking pin. One end of the rotating arm is connected to the rotating shaft, the first locking pin is arranged at the other end of the rotating shaft, and the bracket is provided with a first locking hole and a second locking hole for cooperating with the first locking pin.

[0007] As a further improvement of the above technical solution: The first locking assembly and the cutter shaft drive assembly are respectively arranged at both ends of the cutter shaft assembly.

[0008] As a further improvement of the above technical solution: The second locking assembly includes a telescopic locking rod arranged on the bracket and a limiting member arranged on the rotating frame. The limiting member is provided with a hole for the telescopic locking rod to pass through.

[0009] As a further improvement of the above technical solution: The telescopic locking rod is the piston rod of a cylinder.

[0010] As a further improvement of the above technical solution: The tool shaft assembly includes a tool shaft, a plurality of cutting tools arranged along the length direction of the tool shaft, and fixing seats provided at both ends of the tool shaft. A positioning assembly is provided between one of the fixing seats and the rotating frame, and a third locking assembly is provided between the other fixing seat and the rotating frame.

[0011] As a further improvement of the above technical solution: The positioning assembly includes at least two positioning holes provided on the fixing seat and at least two positioning pins provided on the rotating frame, and the positioning pins are respectively inserted into the positioning holes in a one-to-one correspondence.

[0012] As a further improvement of the above technical solution: The third locking assembly includes a third locking hole provided on the fixing seat and a locking handle threadedly connected to the rotating frame. A locking plate is sleeved on the locking handle, and a third locking pin cooperating with the third locking hole is provided on the locking plate.

[0013] As a further improvement of the above technical solution: The fixing seat is U-shaped and internally embedded with a bearing seat. A fastening member for locking the bearing seat is provided on the fixing seat. A guiding assembly is provided between the bearing seat and the fixing seat, and the tool shaft is provided on the bearing seat.

[0014] As a further improvement of the above technical solution: The tool shaft driving assembly includes a rotating driving member provided on the bracket and a driving gear connected to the rotating driving member. A driven gear is provided on the tool shaft assembly, and the driven gear meshes with the driving gear.

[0015] Compared with the prior art, the advantages of the present utility model are as follows: In the film cutting device disclosed by the present utility model, during normal operation, both ends of the rotating shaft are locked and fixed to the bracket through the first locking assembly and the second locking assembly respectively. The film passes through between the tool shaft assembly and the film positioning shaft. The tool shaft driving assembly drives the tool shaft assembly to rotate to complete film cutting; when the tool shaft assembly needs to be replaced, the first locking assembly and the second locking assembly are unlocked, and then the rotating shaft is used to drive the rotating frame to rotate. The tool shaft assembly rotates with the rotating frame, so as to be separated from the tool shaft driving assembly and the film positioning shaft, increasing the operation space. Finally, the tool shaft assembly is disassembled from the rotating frame. The structure is simple, the reliability is good, and the disassembly and assembly of the tool shaft assembly are convenient.

[0016] Other features and advantages of the present utility model will be described in detail in the subsequent specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the film cutting device of the present utility model from the first perspective.

[0018] Figure 2It is a schematic perspective view of the second perspective of the film material cutting device of the present utility model.

[0019] Figure 3 It is a schematic perspective view of the cutter shaft assembly in the present utility model.

[0020] Figure 4 Is Figure 1 The enlarged view of part A in

[0021] Figure 5 Is Figure 2 The enlarged view of part B in

[0022] Figure 6 Is Figure 2 The enlarged view of part C in

[0023] Each label in the figure represents:

[0024] 1. Support; 11. Second locking hole; 12. Film material positioning shaft; 2. Cutter shaft assembly; 21. Cutter shaft; 22. Cutting knife; 23. Fixed seat; 24. Bearing seat; 25. Fastener; 26. Guide assembly; 27. Driven gear; 3. Rotating frame; 31. Rotating shaft; 4. First locking assembly; 41. Rotating arm; 42. First locking pin; 5. Second locking assembly; 51. Telescopic locking rod; 52. Limiting part; 6. Cutter shaft driving assembly; 61. Rotating driving part; 62. Driving gear; 7. Positioning assembly; 71. Positioning hole; 72. Positioning pin; 8. Third locking assembly; 81. Third locking hole; 82. Locking handle; 83. Locking plate; 84. Third locking pin. Specific embodiments

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0026] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0027] In the present utility model, unless otherwise clearly defined and limited, terms such as "assembly", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] The present utility model will be further described in detail below with reference to the accompanying drawings of the specification and specific embodiments.

[0029] Figures 1 to 6 An embodiment of the film material slitting device of the present utility model is shown. The film material slitting device of this embodiment includes a bracket 1, a cutter shaft assembly 2, a cutter shaft drive assembly 6 and a film material positioning shaft 12 provided on the bracket 1. It also includes a rotating frame 3 and a rotating shaft 31 for driving the rotating frame 3 to rotate. The cutter shaft assembly 2 is detachably installed on the rotating frame 3. The film material positioning shaft 12, the rotating shaft 31 and the cutter shaft assembly 2 are arranged in parallel. A first locking assembly 4 is provided between one end of the rotating shaft 31 and the bracket 1, and a second locking assembly 5 is provided between the other end of the rotating shaft 31 and the bracket 1.

[0030] In the film material slitting device disclosed by the present utility model, during normal operation, both ends of the rotating shaft 31 are locked and fixed to the bracket 1 through the first locking assembly 4 and the second locking assembly 5 respectively. The film material passes through between the cutter shaft assembly 2 and the film material positioning shaft 12. The film material positioning shaft 12 provides support for the film material. The cutter shaft drive assembly 6 drives the cutter shaft assembly 2 to rotate to complete the slitting of the film material. When the cutter shaft assembly 2 needs to be replaced, the first locking assembly 4 and the second locking assembly 5 are unlocked, and then the rotating shaft 31 is used to drive the rotating frame 3 to rotate. The cutter shaft assembly 2 rotates with the rotating frame 3, so as to separate from the cutter shaft drive assembly 6 and the film material positioning shaft 12, increasing the operating space. Finally, the cutter shaft assembly 2 is detached from the rotating frame 3. The structure is simple, the reliability is good, and the disassembly and assembly of the cutter shaft assembly 2 are convenient.

[0031] Specifically refer to Figure 2, Further, in this embodiment, the first locking assembly 4 includes a swing arm 41 and a first locking pin 42. One end of the swing arm 41 is connected to the rotating shaft 31, and the first locking pin 42 is provided at the other end of the rotating shaft 31. The bracket 1 is provided with a first locking hole (blocked in the figure) and a second locking hole 11 that cooperate with the first locking pin 42. After the second locking assembly 5 is unlocked, the first locking pin 42 is pulled out from the first locking hole, and then the rotating shaft 31 can be driven to rotate counterclockwise by means of the first locking pin 42 and the swing arm 41. The swing arm 41 can act as a lever to make the operation more labor-saving. After rotating in place, the first locking pin 42 is inserted into the second locking hole 11, and the rotating frame 3 can be locked in the high position, and the tool shaft assembly 2 can work normally; on the contrary, the rotating frame 3 can be locked in the low position to facilitate the disassembly of the tool shaft assembly 2.

[0032] As a preferred embodiment, the first locking assembly 4 and the tool shaft drive assembly 6 are respectively located at both ends of the tool shaft assembly 2. Since the swing arm 41 in the first locking assembly 4 needs to rotate reciprocally, a relatively large area is required. Distributing the first locking assembly 4 and the tool shaft drive assembly 6 at both ends of the tool shaft assembly 2 can avoid interference with the tool shaft drive assembly 6, with a simple structure and reasonable layout. Of course, in other embodiments, arranging the first locking assembly 4 and the tool shaft drive assembly 6 at the same end of the tool shaft assembly 2 can also unlock and lock, but the volume of the device will increase.

[0033] Specifically refer to Figure 1 and Figure 4 , In this embodiment, the second locking assembly 5 includes a telescopic locking rod 51 provided on the bracket 1 and a limiting member 52 (such as a limiting plate, a limiting block, etc.) provided on the rotating frame 3. The limiting member 52 is provided with a hole position (blocked in the figure) for the telescopic locking rod 51 to pass through. When the telescopic locking rod 51 penetrates through the limiting member 52, the rotating frame 3 cannot rotate relative to the bracket 1, that is, the second locking assembly 5 is in a locked state; on the contrary, when the telescopic locking rod 51 withdraws from the limiting member 52, that is, the second locking assembly 5 is in an unlocked state. When the first locking assembly 4 is also in an unlocked state, the rotating frame 3 can rotate relative to the bracket 1, with a simple structure and good reliability.

[0034] As a preferred embodiment, the telescopic locking rod 51 is the piston rod of a cylinder, with a simple and reliable structure, and the degree of automation is improved. Of course, in other embodiments, the telescopic locking rod 51 can also be manually operated, or driven to extend and retract by an oil cylinder, an electric cylinder, etc.

[0035] Specifically refer to Figure 3 and Figure 5, in this embodiment, the tool shaft assembly 2 includes a tool shaft 21, a plurality of cutting tools 22 arranged along the length direction of the tool shaft 21, and fixing seats 23 provided at both ends of the tool shaft 21. A positioning assembly 7 is provided between one of the fixing seats 23 and the rotary frame 3, and a third locking assembly 8 is provided between the other fixing seat 23 and the rotary frame 3. The positioning assembly 7 facilitates the positioning of the entire tool shaft assembly 2 on the rotary frame 3, and the third locking assembly 8 is used to fix the entire tool shaft assembly 2 to the rotary frame 3.

[0036] Further, in this embodiment, the positioning assembly 7 includes two positioning holes 71 provided on the fixing seat 23 and two positioning pins 72 provided on the rotary frame 3. The positioning pins 72 are respectively inserted into the positioning holes 71. Of course, in other embodiments, the number of the positioning holes 71 and the positioning pins 72 can also be appropriately adjusted. Align the two positioning holes 71 with the two positioning pins 72, and then move the tool shaft assembly 2 axially into place to achieve the positioning of the tool shaft assembly 2. The structure is simple and convenient to use.

[0037] Furthermore, in this embodiment, the third locking assembly 8 includes a third locking hole 81 provided on the fixing seat 23 and a locking handle 82 threadedly connected to the rotary frame 3. A locking plate 83 is sleeved on the locking handle 82, and a third locking pin 84 cooperating with the third locking hole 81 is provided on the locking plate 83. After the tool shaft assembly 2 is positioned, tighten the locking handle 82. The locking handle 82 drives the locking plate 83 to move, so that the third locking pin 84 is inserted into the third locking hole 81, thereby locking the fixing seat 23 and the rotary frame 3. The structure is simple and reliable; when it is necessary to disassemble the tool shaft assembly 2, it is necessary to first disassemble the locking handle 82, take out the third locking pin 84 from the third locking hole 81, and finally move the tool shaft assembly 2 in the reverse direction to separate the positioning hole 71 from the positioning pin 72. Preferably, the locking handle 82 is a wing nut, which is convenient for manual operation. The number of the third locking pins 84 is two. Of course, in other embodiments, it can also be one or others.

[0038] Furthermore, in this embodiment, the fixing seat 23 is U-shaped and internally embedded with a bearing seat 24. A fastener 25 (such as a set screw, a buckle, etc.) for locking the bearing seat 24 is provided on the fixing seat 23. A guiding assembly 26 is provided between the bearing seat 24 and the fixing seat 23, and the tool shaft 21 is provided on the bearing seat 24. After loosening the fastener 25, the bearing seat 24, the tool shaft 21, etc. can be taken out from the opening of the fixing seat 23. The guiding assembly 26 can provide a guiding function, which is convenient for the bearing seat 24 to move on the fixing seat 23 and avoid deviation and jamming. Preferably, the guiding assembly 26 can be a convex and concave structure, which can limit the axial movement of the bearing seat 24 relative to the fixing seat 23 along the tool shaft 21, so that the bearing seat 24 is stably installed on the fixing seat 23.

[0039] Specifically refer to Figure 1, in this embodiment, the tool shaft drive assembly 6 includes a rotary drive member 61 (such as a servo motor, etc.) provided on the bracket 1 and a driving gear 62 connected to the rotary drive member 61. A driven gear 27 is provided on the tool shaft assembly 2, and the driven gear 27 meshes with the driving gear 62. The gear meshing transmission has good reliability and can stably drive the tool shaft assembly 2 to rotate and cut the film. Moreover, when the driven gear 27 rotates with the rotary frame 3, it can be conveniently separated from or engaged with the driving gear 62 without other additional operations, making it more convenient to use. Of course, in other embodiments, belt drive or sprocket bar drive can also be used. However, compared with the gear drive structure, it is necessary to install a synchronous belt or a chain, which increases the process.

[0040] Although the present utility model has been disclosed above with preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present utility model by using the above-disclosed technical content, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall fall within the scope of protection of the technical solution of the present utility model.

Claims

1. A film material slitting device, comprising a support (1), a knife shaft assembly (2), a knife shaft driving assembly (6) and a film material positioning shaft (12) arranged on the support (1), characterized in that: It also comprises a rotating frame (3) and a rotating shaft (31) for driving the rotating frame (3) to rotate; the knife shaft assembly (2) is detachably mounted on the rotating frame (3); the film material positioning shaft (12), the rotating shaft (31) and the knife shaft assembly (2) are arranged in parallel; a first locking assembly (4) is provided between one end of the rotating shaft (31) and the bracket (1); and a second locking assembly (5) is provided between the other end of the rotating shaft (31) and the bracket (1).

2. The film slitting device according to claim 1, characterized in that: The first locking assembly (4) comprises a rotating arm (41) and a first locking pin (42); one end of the rotating arm (41) is connected to the rotating shaft (31); the first locking pin (42) is arranged at the other end of the rotating shaft (31); and the bracket (1) is provided with a first locking hole and a second locking hole (11) which cooperate with the first locking pin (42).

3. The film slitting device according to claim 2, characterized in that: The first locking assembly (4) and the knife shaft driving assembly (6) are respectively arranged at two ends of the knife shaft assembly (2).

4. The film slitting device according to claim 1, characterized in that: The second locking assembly (5) comprises a telescopic locking rod (51) provided on the bracket (1) and a limiting member (52) provided on the rotating frame (3); the limiting member (52) is provided with a hole for the telescopic locking rod (51) to pass through.

5. The film slitting device according to claim 4, characterized in that: The telescopic locking rod (51) is a piston rod of a cylinder.

6. The film slitting device according to any one of claims 1 to 5, characterized in that: The knife shaft assembly (2) comprises a knife shaft (21), a plurality of cutters (22) arranged along the length direction of the knife shaft (21), and fixed seats (23) arranged at both ends of the knife shaft (21), wherein a positioning assembly (7) is arranged between one of the fixed seats (23) and the rotating frame (3), and a third locking assembly (8) is arranged between the other fixed seat (23) and the rotating frame (3).

7. The film slitting device according to claim 6, characterized in that: The positioning assembly (7) comprises at least two positioning holes (71) provided on the fixing seat (23) and at least two positioning pins (72) provided on the rotating frame (3), wherein the positioning pins (72) are inserted into the positioning holes (71) in a one-to-one correspondence.

8. The film slitting device according to claim 6, characterized in that: The third locking assembly (8) comprises a third locking hole (81) provided on the fixing seat (23) and a locking handle (82) threadedly connected to the rotating frame (3); a locking plate (83) is sleeved on the locking handle (82); and a third locking pin (84) is provided on the locking plate (83) and is matched with the third locking hole (81).

9. The film slitting device according to claim 6, characterized in that: The fixing seat (23) is U-shaped and has a bearing seat (24) embedded therein. A fastener (25) for locking the bearing seat (24) is provided on the fixing seat (23). A guide assembly (26) is provided between the bearing seat (24) and the fixing seat (23). The knife shaft (21) is arranged on the bearing seat (24).

10. The film slitting device according to any one of claims 1 to 5, characterized in that: The knife shaft drive assembly (6) comprises a rotating drive member (61) arranged on the bracket (1) and a driving gear (62) connected to the rotating drive member (61); the knife shaft assembly (2) is provided with a driven gear (27), and the driven gear (27) is meshed with the driving gear (62).

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