Slitting mechanism for high-transmittance back film packing material

Abstract

The utility model discloses a slitting mechanism for a high-transmittance back film packing material, which comprises a rack, a slitting roll shaft is rotatably connected onto the rack, a guide rod component fixedly connected onto the rack is arranged above the slitting roll shaft, a cam shaft rotatably connected onto the rack is arranged between the guide rod component and the slitting roll shaft, a cam roller is arranged on the cam shaft, and a guide rod is arranged on the guide rod component. At least one end of the cam shaft is provided with a driving handle, and the guide rod assembly is provided with a plurality of slitting knife assemblies. The slitting knife assembly comprises a slitting knife rest connected to the guide rod assembly in a sliding mode, the slitting knife rest comprises a knife holder far away from the slitting roll shaft and a knife sleeve close to the slitting roll shaft, an elastic part is connected between the knife sleeve and the knife holder in series, the knife holder is connected to the guide rod assembly in a sliding mode, and a slitting knife partially stretching out of a sleeve opening is inserted into the knife sleeve. The cutter sleeve is in threaded connection with a first locking screw, and the end of the first locking screw abuts against the slitting cutter. The slitting mechanism has the advantages of being adjustable in slitting width and convenient to adjust, and is complete in overall function and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, and more specifically, to a slitting mechanism for high-transparency back film packaging materials. Background Art

[0002] After the high-transmittance film material for making a heating pad is punched, it needs to be cut into strips according to a set width for subsequent cutting into rectangular sheets for use in making heating pads. Since different heating pads are of different sizes, the width of the cut strips will need to be adjusted regularly as the product specifications change. If the width of the cut strips cannot be adjusted, it will be difficult to use with multiple products, there will be limitations in use, and the overall effect will be poor. Accordingly, the utility model proposes a slitting mechanism for high-transmittance back film packaging materials. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art and provide a slitting mechanism for high-transparency back film packaging materials, which has the characteristics of adjustable slitting width and convenient adjustment.

[0004] In order to solve the above technical problems, the purpose of the utility model is achieved as follows: the utility model relates to a slitting mechanism for high-transparency back film packaging materials, comprising a frame, a slitting roller shaft is rotatably connected to the frame, a guide rod assembly fixedly connected to the frame is arranged above the slitting roller shaft, a cam shaft rotatably connected to the frame is arranged between the guide rod assembly and the slitting roller shaft, a cam roller for following is arranged on the cam shaft, at least one end of the cam shaft is provided with a driving handle for controlling the rotation, and a plurality of slitting knife assemblies are arranged on the guide rod assembly;

[0005] The slitting knife assembly includes a slitting knife holder slidably connected to the guide rod assembly, the slitting knife holder includes a knife seat away from the slitting roller shaft and a knife sleeve close to the slitting roller shaft, an elastic part is connected in series between the knife sleeve and the knife seat, the knife seat is slidably connected to the guide rod assembly, a slitting knife partially extending out of the sleeve is inserted in the knife sleeve, a first locking screw with an end portion against the slitting knife is threadedly connected to the knife sleeve, and the roller surface of the cam roller is tightly attached to the knife sleeve.

[0006] The utility model is further configured as follows: the guide rod assembly comprises a first guide rod and a second guide rod, and a second locking screw with an end portion resting against the first guide rod or the second guide rod is threadedly connected to the knife seat.

[0007] The utility model is further configured as follows: the first locking screw and the second locking screw are both hand-tightened locking screws.

[0008] The utility model is further configured as follows: the slitting roller shaft is provided with a plurality of annular grooves which are arranged equidistantly along the axial direction.

[0009] The utility model is further configured as follows: the knife seat, the knife sleeve and the elastic part are an integrated structure.

[0010] In summary, the utility model has the following beneficial effects: the slitting mechanism for high-transmittance back film packaging materials involved in the utility model can not only increase or decrease the number of slitting knives, but also change the spacing between adjacent slitting knives, and when the slitting knives are extended into the annular groove, the slitting is complete without adhesion, the overall function is perfect, and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the slitting knife assembly of the utility model;

[0013] Figure 3 It is a partial structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0014] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments, but it should be understood that these descriptions are only for further illustrating the features and advantages of the utility model, rather than limiting the patent requirements of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0015] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0016] Example 1

[0017] See also Figures 1 to 3 As shown, a slitting mechanism for high-transparency back film packaging materials involved in this embodiment includes a frame 1, a slitting roller shaft 2 is rotatably connected to the frame 1, a guide rod assembly fixedly connected to the frame is provided above the slitting roller shaft 2, a cam shaft 3 rotatably connected to the frame is provided between the guide rod assembly and the slitting roller shaft 2, a cam roller 4 is provided on the cam shaft 3 for follow-up, at least one end of the cam shaft 3 is provided with a driving handle 5 for controlling the rotation, and a plurality of slitting knife assemblies are provided on the guide rod assembly;

[0018] The slitting knife assembly includes a slitting knife holder 6 slidably connected to the guide rod assembly, the slitting knife holder 6 includes a knife seat 61 away from the slitting roller shaft and a knife sleeve 62 close to the slitting roller shaft, an elastic part 63 is connected in series between the knife sleeve 62 and the knife seat 61, the knife seat 61 is slidably connected to the guide rod assembly, a slitting knife 7 partially extending out of the sleeve is inserted into the knife sleeve 62, a first locking screw 8 is threadedly connected to the knife sleeve 62, and the end of the first locking screw 8 is against the slitting knife 7, and the roller surface of the cam roller 4 is tightly attached to the knife sleeve 62.

[0019] Furthermore, the guide rod assembly includes a first guide rod 9 and a second guide rod 10 , and a second locking screw 11 with an end portion resting against the first guide rod or the second guide rod is threadedly connected to the knife seat 61 .

[0020] Furthermore, the first locking screw 8 and the second locking screw 11 are both hand-tightened locking screws.

[0021] Furthermore, the slitting roller shaft 2 is provided with a plurality of annular grooves 12 which are arranged equidistantly along the axial direction.

[0022] Furthermore, the knife seat 61, the knife sleeve 62 and the elastic part 63 are an integrated structure.

[0023] In this embodiment, when it is necessary to adjust the axial position of the slitting knife holder 6, the position state of the cam roller 4 is first changed so that the upper protrusion thereof does not abut against the knife sleeve 62, causing the slitting knife 7 on the knife sleeve 62 to not extend into the annular groove 12. At this time, when the second locking screw 11 is loosened, the slitting knife holder 6 can be axially moved relative to the guide rod assembly. After the position adjustment is completed, the second locking screw 11 is tightened to lock the position of the slitting knife holder 6 and the slitting knife 7 thereon. Thereafter, the driving handle 5 is rotated to control the cam shaft 3 and the cam roller 4 thereon to rotate until the protrusion on the cam roller 4 abuts against the knife sleeve 62, the elastic portion 63 is deformed, and the knife sleeve 62 carries the slitting knife 7 toward the slitting roller shaft 2 until the slitting knife 7 extends into the corresponding annular groove 12.

[0024] The slitting knife assembly can also be installed (added) or removed (reduced) on the guide rod assembly.

[0025] By loosening the first locking screw 8, the slitting knife 7 can be taken out from the knife sleeve 62 for replacement.

[0026] The utility model relates to a slitting mechanism for high-transparency back film packaging materials. The slitting mechanism can not only increase or decrease the number of slitting knives, but also change the spacing between adjacent slitting knives. When the slitting knives extend into the annular groove, the slitting is complete without adhesion. The overall function is perfect and the practicability is strong.

[0027] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationship are based on the orientation or positional relationship actually shown, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in combination with the embodiments and according to specific circumstances.

[0028] Unless otherwise clearly specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A slitting mechanism for high-transparency back film packaging materials, comprising a frame, characterized in that: The frame is rotatably connected with a slitting roller shaft, a guide rod assembly fixedly connected to the frame is provided above the slitting roller shaft, a cam shaft rotatably connected to the frame is provided between the guide rod assembly and the slitting roller shaft, a cam roller for following is provided on the cam shaft, at least one end of the cam shaft is provided with a driving handle for controlling the rotation, and a plurality of slitting knife assemblies are provided on the guide rod assembly; The slitting knife assembly includes a slitting knife holder slidably connected to the guide rod assembly, the slitting knife holder includes a knife seat away from the slitting roller shaft and a knife sleeve close to the slitting roller shaft, an elastic part is connected in series between the knife sleeve and the knife seat, the knife seat is slidably connected to the guide rod assembly, a slitting knife partially extending out of the sleeve is inserted in the knife sleeve, a first locking screw with an end portion against the slitting knife is threadedly connected to the knife sleeve, and the roller surface of the cam roller is tightly attached to the knife sleeve.

2. The slitting mechanism for high-transparency back film packaging material according to claim 1, characterized in that: The guide rod assembly comprises a first guide rod and a second guide rod, and a second locking screw with an end portion resting against the first guide rod or the second guide rod is threadedly connected to the knife seat.

3. The slitting mechanism for high-transparency back film packaging material according to claim 2, characterized in that: The first locking screw and the second locking screw are both hand-tightened locking screws.

4. The slitting mechanism for high-transmittance back film packaging material according to any one of claims 1 to 3, characterized in that: The slitting roller shaft is provided with a plurality of annular grooves which are arranged equidistantly along the axial direction.

5. The slitting mechanism for high-transparency back film packaging material according to claim 1, characterized in that: The knife seat, the knife sleeve and the elastic part are an integrated structure.

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