An insulating paper slitting device

Abstract

This utility model provides an insulating paper slitting device, belonging to the technical field of paper cutting equipment. It solves the problem of cumbersome blade adjustment operations in existing paper slitting devices. This insulating paper slitting device includes a frame, an unwinding mechanism, a guide roller assembly, a cutting mechanism, and a rewinding mechanism. The cutting mechanism includes an upper cutter assembly and a lower cutter assembly. The upper cutter assembly includes an upper cutter shaft and several upper cutters spaced apart along the axial direction of the upper cutter shaft. The lower cutter assembly includes a lower cutter shaft and several lower cutter seats spaced apart along the axial direction of the lower cutter shaft and corresponding to the upper cutters. Both the upper and lower cutter shafts are equipped with blade adjustment mechanisms for driving the upper cutters or lower cutter seats to move closer or further apart along the upper or lower cutter shaft. This utility model uses an adjusting screw with reverse threads at both ends to drive the upper cutters or lower cutter seats on both sides to move closer or further apart, making operation simple and blade adjustment more flexible and convenient.

Description

Technical Field

[0001] This utility model belongs to the technical field of paper cutting equipment, and relates to an insulating paper slitting device. Background Technology

[0002] Insulating paper is a general term for electrical insulating paper. It is mainly made of composite insulating materials and has good insulation performance and mechanical strength. It is widely used in various electrical equipment such as cables and coils.

[0003] Because insulating paper is produced in large rolls, it cannot be used directly and needs to be cut according to the application scenario. Existing insulating paper slitting devices have largely similar structures, mainly including an unwinding mechanism, guide roller assembly, cutting mechanism, and rewinding mechanism. The insulating paper is adjusted by the guide roller assembly from the unwinding mechanism, then cut by the cutting mechanism, and finally rewound by the rewinding mechanism. Since the required width of insulating paper varies depending on the application scenario, the insulating paper slitting device needs to frequently adjust the spacing of the blades on the cutting mechanism, making the operation cumbersome, time-consuming, and labor-intensive, severely impacting processing efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing an insulating paper slitting device. The technical problem this invention aims to solve is: how to improve the blade adjustment efficiency of the paper slitting device.

[0005] The objective of this utility model can be achieved through the following technical solution: An insulating paper slitting device, comprising a frame, an unwinding mechanism, a guide roller assembly, a cutting mechanism, and a winding mechanism, characterized in that the cutting mechanism comprises an upper cutting blade assembly and a lower cutting blade assembly, the upper cutting blade assembly comprising an upper cutting shaft and a plurality of upper cutting blades spaced apart along the axial direction of the upper cutting shaft, the lower cutting blade assembly comprising a lower cutting shaft and a plurality of lower cutting blade seats spaced apart along the axial direction of the lower cutting shaft and corresponding one-to-one with the upper cutting blades, and both the upper cutting shaft and the lower cutting shaft are provided with a blade adjusting mechanism for driving the upper cutting blades or lower cutting blade seats to move closer or further apart along the upper cutting shaft or the lower cutting shaft.

[0006] In this invention, insulating paper is cut by a matching upper cutter assembly and a lower cutter assembly. The upper and lower cutters on the upper and lower cutter assemblies can have their spacing adjusted directly by a blade adjustment mechanism, allowing for direct adjustment as needed, avoiding blade replacement, and making the process more flexible and efficient.

[0007] In the aforementioned insulating paper slitting device, the upper cutter includes a fixed cutter and a moving cutter assembly. The fixed cutter is fixed to the upper cutter shaft, and the moving cutter assembly includes two moving cutters symmetrically arranged on both sides of the fixed cutter. Both moving cutters are slidably connected to the upper cutter shaft. The blade adjusting mechanism includes an adjusting screw arranged axially along the upper cutter shaft. The two ends of the adjusting screw are respectively provided with threads in opposite directions and are threadedly connected to the two moving cutters in the same moving cutter assembly. Thus, when the adjusting screw rotates, it can drive the two moving cutters in the same assembly to synchronously approach or move away from the fixed cutter, ensuring synchronous changes in the blade spacing. Furthermore, during cutting operations, the adjusting screw and the moving cutters can form a self-locking mechanism, ensuring that the moving cutters are fixed relative to the upper cutter shaft and guaranteeing cutting accuracy.

[0008] In the above-mentioned insulating paper slitting device, the upper cutter shaft is also provided with a driving component for driving the adjustment screw to rotate. The driving component is an adjustment handwheel or a drive motor.

[0009] In the above-mentioned insulating paper slitting device, the upper blade shaft is in the shape of a hollow cylinder, and a number of guide rods are provided inside the upper blade shaft along the axial direction. The movable cutter also has a number of guide holes that correspond one-to-one with the guide rods and slide in cooperation with them.

[0010] In the above-mentioned insulating paper slitting device, the side wall of the upper blade shaft has several circumferentially spaced sliding grooves, which are arranged along the axial direction of the upper blade shaft. The movable cutter is disc-shaped, and the movable cutter has several clearance grooves along the circumferential direction, so that adjacent clearance grooves form a connection part corresponding to the sliding groove. The connection part is embedded in the corresponding sliding groove and slides with the sliding groove.

[0011] In the aforementioned insulating paper slitting device, the cutting mechanism further includes a lifting drive mechanism for driving the upper cutting blade assembly to move up and down relative to the lower cutting blade assembly. The lifting drive mechanism allows the upper and lower cutting blade assemblies to be separated, facilitating blade adjustment.

[0012] In the above-mentioned insulating paper slitting device, there are multiple moving cutter groups and multiple adjusting screws, each corresponding to a moving cutter group. The adjusting screws are connected to each other to ensure that all moving cutters can adjust their blade spacing synchronously.

[0013] In the above-mentioned insulating paper slitting device, the blade adjustment mechanism of the lower blade assembly has the same structure as the blade adjustment mechanism of the upper blade assembly.

[0014] In the above-mentioned insulating paper slitting device, the upper blade shaft is provided with a scale along the axial direction.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. This utility model has multiple upper cutting blades and corresponding lower cutting blade seats on the upper and lower cutting shafts, and a corresponding blade adjustment mechanism, so that the operator can adjust the distance between each upper cutting blade and the lower cutting blade seat through the blade adjustment mechanism, avoiding the operation of changing blades and making it more flexible and convenient to use.

[0017] 2. This utility model has a clever design. It sets up moving cutters in groups on both sides of the fixed cutter, and connects the moving cutters in the same group by setting reverse threads at both ends of the adjusting screw, so as to ensure that the moving cutters move synchronously and that the distance between each cutter remains consistent after the movement. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 yes Figure 1 Enlarged view of part A in the middle;

[0020] Figure 3 This is a schematic diagram of the upper cutting blade assembly;

[0021] Figure 4 This is a schematic diagram of the moving cutter;

[0022] Figure 5 This is a cross-sectional view of the upper cutter component;

[0023] Figure 6 This is a schematic diagram of the upper cutting blade assembly in Embodiment 2;

[0024] Figure 7 This is a cross-sectional view of the upper cutting blade assembly in Embodiment 2.

[0025] In the diagram, 1. Frame; 21. Unwinding mechanism; 22. Guide roller assembly; 23. Cutting mechanism; 24. Rewinding mechanism; 3. Upper cutter assembly; 31. Upper cutter shaft; 31a. Slide groove; 32. Upper cutter; 321. Fixed cutter; 322. Moving cutter; 322a. Relief groove; 322b. Guide hole; 322c. Connecting part; 33. Guide rod; 34. Adjusting screw; 35. Driving component; 36. Lifting drive mechanism; 4. Lower cutter assembly; 41. Lower cutter holder; 42. Lower cutter shaft. Detailed Implementation

[0026] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0027] Example 1

[0028] An insulating paper slitting device, such as Figure 1As shown, the device includes a frame 1 and an unwinding mechanism 21, a guide roller assembly 22, a cutting mechanism 23, and a winding mechanism 24 arranged sequentially on the frame 1. This allows the rolled insulating paper tube to be cut by the unwinding mechanism 21, the guide roller assembly 22, and the cutting mechanism 23 to form several narrow strips, which are then rewound into a disc shape by the winding mechanism 24.

[0029] like Figure 2 The cutting mechanism 23 includes an upper cutting blade assembly 3 and a lower cutting blade assembly 4. The upper cutting shaft 31 of the upper cutting blade assembly 3 and the lower cutting shaft 42 of the lower cutting blade assembly 4 are respectively provided with a plurality of corresponding and cooperating upper cutting blades 32 and lower cutting blade seats 41 along the axial direction. Both the upper cutting blade assembly 3 and the lower cutting blade assembly 4 are provided with a blade adjustment mechanism, so that the operator can adjust the spacing of each upper cutting blade 32 and the spacing of each lower cutting blade seat 41 through the blade adjustment mechanism, thereby changing the width of the cut insulating paper tape.

[0030] Specifically, such as Figures 3-5 As shown, the upper cutting blade assembly 3 includes an upper cutting shaft 31 and three upper cutting blades 32 spaced apart along the upper cutting shaft 31. The three upper cutting blades 32 include a fixed cutting blade 321 and two paired moving cutting blades 322. The two moving cutting blades 322 are located on both sides of the fixed cutting blade 321 and form a set of moving cutting blades 322. In this embodiment, both the fixed cutter 321 and the movable cutter 322 are disc-shaped and have basically the same structure. The cutting edges of both the fixed cutter 321 and the movable cutter 322 are located on the outer circumferential surface of the upper cutter shaft 31. The fixed cutter 321 is fixed in the middle of the upper cutter shaft 31, and the movable cutters 322 are slidably connected to the upper cutter shaft 31 and located on both sides of the fixed cutter 321. An adjusting screw 34 that can rotate relative to the upper cutter shaft 31 is provided axially inside the upper cutter shaft 31. The middle part of the adjusting screw 34 passes through the fixed cutter 321 and forms a clearance fit with the fixed cutter 321. The two ends of the adjusting screw 34 are respectively provided with threads in opposite directions and are respectively threadedly connected to the two movable cutters 322 of the movable cutter 322 group, so that when the adjusting screw 34 rotates, it can simultaneously drive the two movable cutters 322 to move closer to or away from the fixed cutter 321, and the distance between the two movable cutters 322 and the fixed cutter 322 remains the same at all times. To facilitate the adjustment of the lead screw 34, a drive component 35 for driving the lead screw 34 to rotate is provided at one end of the lead screw 34. In this embodiment, the drive component 35 is an adjustment handwheel. Of course, the drive component 35 can also be a drive motor, and the tool pitch can be adjusted by electronic control.

[0031] In this embodiment, the upper cutter shaft 31 is a hollow cylindrical shape. Several circumferentially spaced grooves 31a are opened on the side wall of the upper cutter shaft 31. The grooves 31a are arranged along the axial direction of the upper cutter shaft 31. Correspondingly, several clearance grooves 322a are also opened along the circumferential direction on the movable cutter 322. Adjacent clearance grooves 322a form connecting parts 322c that correspond one-to-one with the grooves 31a. When the movable cutter 322 is installed on the upper cutter shaft 31, the connecting parts 322c are embedded in the corresponding grooves 31a and form a sliding fit with the grooves 31a. At the same time, two axially arranged guide rods 33 are provided inside the upper cutter shaft 31. The movable cutter 322 is also provided with guide holes 322b that correspond one-to-one with the guide rods 33 and slide fit. Through the cooperation between the guide holes 322b and the guide rods 33, the stability and movement accuracy of the movable cutter 322 can be guaranteed.

[0032] In this embodiment, the upper cutter shaft 31 adopts a split structure, including a cutter shaft body and an end cap connected to one end of the cutter shaft body, and the sliding grooves 31a are all provided on the cutter shaft body to facilitate the installation of the fixed cutter 321, the moving cutter 322, the guide rod 33 and the adjusting screw 34.

[0033] Furthermore, such as Figure 2 As shown, the cutting mechanism 23 also includes a lifting drive mechanism 36 for driving the upper cutting blade assembly 3 to move up and down. In this embodiment, the lifting drive mechanism 36 is a screw drive pair and there are two of them. The two lifting drive mechanisms 36 are located at both ends of the upper blade shaft 31 and connected to the rotating seat of the upper blade shaft 31. The height of the upper blade shaft 31 can be adjusted by the lifting drive mechanism 36. When the present invention needs to adjust the blade, the upper cutting blade assembly 3 and the lower cutting blade assembly 4 can be separated by the lifting drive mechanism 36 to avoid interference between the upper cutting blade 32 and the lower blade seat 41 when adjusting the blade.

[0034] Furthermore, to facilitate the adjustment of the tool spacing, a scale can be set along the axial direction on the upper tool shaft 31.

[0035] In this embodiment, the structure and principle of the lower cutter assembly 4 and the upper cutter assembly 3 are basically the same. It is only necessary to replace the upper cutter 32 of the upper cutter assembly 3 with the lower cutter holder 41.

[0036] Example 2

[0037] like Figure 6 , Figure 7As shown, the structure of this embodiment is basically the same as that of Embodiment 1. The difference is that in this embodiment, there are five upper cutters 32, including fixed cutters 321 and two sets of moving cutters 322. That is, a pair of moving cutters 322 are added on both sides of the fixed cutter 321. Correspondingly, an adjusting screw 34 corresponding to the set of moving cutters 322 is also added to the upper cutter shaft 31. The adjusting screw 34 only forms a threaded transmission engagement with the two moving cutters 322 of the corresponding set and makes way for the moving cutters 322 and fixed cutters 321 of other sets to avoid interference. The adjusting screws 34 of each set are connected by a gear pair to make each set of moving cutters 322 move synchronously. The moving speed of the second set of moving cutters 322 on the outer side is twice the moving speed of the first set of moving cutters 322 on the inner side to ensure that the cutter distance between each upper cutter 32 is always equal.

[0038] Similarly, the number of upper cutters 32 can be further increased by adding 32 sets of moving cutters as needed. Of course, an adjustment screw 34 also needs to be added to the upper cutter shaft 31. The adjustment screws 34 of each set are connected to the transmission so that each set of moving cutters 322 moves synchronously and the distance between each upper cutter 32 remains equal.

[0039] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0040] Although this document frequently uses terms such as frame 1, unwinding mechanism 21, guide roller assembly 22, cutting mechanism 23, and winding mechanism 24, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. An insulation paper slitting device, comprising a frame (1), an unwinding mechanism (21), a guide roller assembly (22), a cutting mechanism (23) and a winding mechanism (24), characterized in that, The cutting mechanism (23) includes an upper cutting blade assembly (3) and a lower cutting blade assembly (4). The upper cutting blade assembly (3) includes an upper cutting shaft (31) and a plurality of upper cutting blades (32) spaced apart along the upper cutting shaft (31). The lower cutting blade assembly (4) includes a lower cutting shaft (42) and a plurality of lower cutting blade holders (41) spaced apart along the lower cutting shaft (42) and corresponding to the upper cutting blades (32). Both the upper cutting shaft (31) and the lower cutting shaft (42) are provided with a blade adjustment mechanism for driving the upper cutting blades (32) or the lower cutting blade holders (41) to move closer or further apart along the upper cutting shaft (31) or the lower cutting shaft (42).

2. The insulation paper slitting apparatus according to claim 1, wherein The upper cutter (32) includes a fixed cutter (321) and a set of movable cutters (322). The fixed cutter (321) is fixed on the upper cutter shaft (31). The set of movable cutters (322) includes two movable cutters (322) symmetrically arranged on both sides of the fixed cutter (321). The movable cutters (322) are slidably connected to the upper cutter shaft (31). The blade adjustment mechanism includes an adjusting screw (34) arranged axially along the upper cutter shaft (31). The two ends of the adjusting screw (34) are respectively provided with threads in opposite directions and are threadedly connected to the two movable cutters (322) of the same set of movable cutters (322).

3. The insulation paper slitting apparatus according to claim 2, wherein The upper cutter shaft (31) is also provided with a drive component (35) for driving the adjustment screw (34) to rotate. The drive component (35) is an adjustment handwheel or a drive motor.

4. The insulation paper slitting apparatus according to claim 2 or 3, characterized by The upper cutter shaft (31) is a hollow cylindrical shape. The upper cutter shaft (31) is provided with a number of guide rods (33) arranged along the axial direction. The moving cutter (322) is also provided with a number of guide holes (322b) that correspond one-to-one with the guide rods (33) and slide in cooperation.

5. The insulation paper slitting apparatus according to claim 4, wherein The upper cutter shaft (31) has several circumferentially spaced sliding grooves (31a) on its side wall. The sliding grooves (31a) are arranged along the axial direction of the upper cutter shaft (31). The moving cutter (322) is disc-shaped. The moving cutter (322) has several circumferentially spaced relief grooves (322a). A connecting part (322c) is formed between adjacent relief grooves (322a) that corresponds to the sliding groove (31a). The connecting part (322c) is embedded in the corresponding sliding groove (31a) and slides with the sliding groove (31a).

6. The insulation paper slitting apparatus according to claim 1 or 2 or 3, wherein The cutting mechanism (23) also includes a lifting drive mechanism (36) for driving the upper cutter assembly (3) to move up and down relative to the lower cutter assembly (4).

7. The insulation paper slitting apparatus according to claim 5, wherein There are multiple sets of moving cutters (322) and multiple adjusting screws (34) respectively corresponding to each set of moving cutters (322), and each adjusting screw (34) is connected to the other in a transmission manner.

8. The insulation paper slitting apparatus according to claim 7, wherein The blade adjustment mechanism of the lower blade assembly (4) has the same structure as the blade adjustment mechanism of the upper blade assembly (3).

9. The insulation paper slitting apparatus according to claim 7, wherein The upper cutter shaft (31) has a scale along its axial direction.

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