Cutter mechanism suitable for slitting glass fiber one-way composite strip

Abstract

The utility model relates to a cutter mechanism suitable for slitting a glass fiber one-way composite strip, and aims to solve the problems that the cutting edge side of a lower blade is attached to the cutting edge side of an upper blade to form a certain pressing force, and the lower blade can be driven by the upper blade to operate, so that the abrasion between the upper blade and the lower blade is relatively large; the device comprises two mounting plates, one end of one of the mounting plates is provided with a driving motor and an air cylinder, the driving end of the driving motor is provided with a coupler, the other end of the driving motor is provided with an air cylinder, the air cylinder is provided with an air cylinder, and the other end of the air cylinder is provided with an air cylinder. The slitting device has the advantages that the situation that the upper blade and the lower blade rub against each other to drive the lower blade to rotate for slitting is avoided, abrasion of the upper blade and the lower blade in the slitting process is reduced, and the service life of the upper blade and the service life of the lower blade are further prolonged.

Description

Technical Field

[0001] This utility model relates to the field of glass fiber unidirectional composite strip slitting tools, specifically a tool mechanism suitable for slitting glass fiber unidirectional composite strips. Background Technology

[0002] Fiberglass unidirectional composite tape is a composite material made of unidirectionally arranged glass fibers through resin impregnation and curing. It possesses excellent mechanical properties and a wide range of applications. Fiberglass unidirectional composite tape is widely used in aerospace, automotive manufacturing, sporting goods, and construction engineering, for example, in aircraft components, automobile bodies, and parts, improving structural strength and lightweighting. In addition, there are specific products such as CFRTP unidirectional tape, which possesses ultra-high strength and toughness and can be used for injection molding reinforcement.

[0003] According to publicly available patent CN208773703U, a disc-type rotary cutter mechanism for a continuous glass fiber thermoplastic composite machine includes a frame. A drive motor and a cylinder are fixedly mounted on the frame, with the cylinder located below the drive motor. The output shaft of the drive motor is connected to a drive shaft via a coupling. A disc-shaped upper cutter holder is fixedly mounted on the drive shaft, and an upper blade is fitted around its outer periphery. A driven shaft is mounted on the telescopic end of the cylinder via a bearing. A disc-shaped lower cutter holder is fixedly mounted on the driven shaft, and a lower blade is fitted around its outer periphery. The cutting edge of the lower blade is in contact with the cutting edge of the upper blade. In developing this invention, the inventors discovered that at least the following problems remain unresolved in the existing technology: In traditional applications, the lower blade's cutting edge is pressed against the upper blade's cutting edge to create a certain pressure, which drives the lower blade. This results in significant wear between the upper and lower blades, shortening their service life and further impacting their overall lifespan. Therefore, a new technical solution is needed to address these issues. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a cutting tool mechanism suitable for cutting unidirectional composite fiberglass strips. This solves the technical problem that the current method of using the lower blade to adhere to the upper blade to form a certain pressure, which allows the upper blade to drive the lower blade, results in significant wear between the upper and lower blades, shortens their service life, and further affects their lifespan.

[0005] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a cutting tool mechanism suitable for cutting unidirectional composite strip of glass fiber is designed, including a mounting plate. There are two mounting plates. One end of the mounting plate is equipped with a drive motor and a cylinder. The drive end of the drive motor is equipped with a coupling. An upper rotating shaft is connected to the coupling. An upper tool holder is installed on the outside of the upper rotating shaft. An upper blade is installed on the outside of the upper tool holder. The end of the upper rotating shaft away from the coupling rotates through the mounting plate. A drive gear is installed on the upper rotating shaft on the outside of the mounting plate.

[0006] The cylinder has a connecting shaft mounted on its drive end, a lower tool holder mounted on the connecting shaft, a lower blade mounted on the outer side of the lower tool holder, a polygonal column mounted on the end of the lower tool holder away from the connecting shaft, a polygonal sleeve slidably fitted on the outer side of the polygonal column, a lower rotating shaft mounted on one end of the polygonal sleeve, the lower rotating shaft rotatably passing through the mounting plate, a driven gear mounted on the lower rotating shaft on the outer side of the mounting plate, the driven gear meshing with the driving gear.

[0007] Preferably, a protective cover is provided at one end of the mounting plate near the driving gear and the driven gear, and the protective cover is fitted over the outside of the driving gear and the driven gear.

[0008] Preferably, a connecting plate is installed on the mounting plate on one side of the protective cover, and a bolt passes through the connecting plate and is threaded to the surface of the protective cover.

[0009] Preferably, the external dimensions of the polygonal column are adapted to the internal dimensions of the polygonal sleeve.

[0010] Preferably, the central axis of the upper rotating shaft and the central axis of the lower rotating shaft are parallel to each other and in the same plane, and the central axis of the lower rotating shaft, the central axis of the polygonal sleeve, the central axis of the polygonal column and the central axis of the connecting shaft are on the same horizontal line.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention combines a polygonal sleeve, a polygonal column, an upper blade holder, an upper blade, a lower blade holder, a lower blade, an upper rotating shaft, a lower rotating shaft, a drive motor, a cylinder, a driven gear, and a driving gear. The cylinder pulls the lower blade closer to the upper blade, causing the blade edges of the upper and lower blades to come into contact and form a certain pressure. Then, the drive motor is started to drive the upper blade to rotate. Because the driving gear and the driven gear mesh, the lower blade rotates at the same speed as the upper blade, thus creating a matching cutting edge between the two blades. This allows for rapid cutting of unidirectional fiberglass composite tape, avoiding friction between the upper and lower blades that would cause the lower blade to rotate during slitting. This reduces wear on the upper and lower blades during slitting and further extends their service life. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the meshing structure of the driving gear and driven gear of this utility model.

[0015] Figure 3 This is a schematic diagram of the connection structure between the polygonal sleeve and the polygonal column of this utility model.

[0016] In the diagram: 1. Mounting plate; 2. Drive motor; 21. Coupling; 22. Upper rotating shaft; 23. Upper tool post; 24. Upper blade; 25. Drive gear; 3. Cylinder; 31. Connecting shaft; 32. Lower tool post; 33. Lower blade; 34. Polygonal column; 35. Polygonal sleeve; 36. Lower rotating shaft; 37. Driven gear; 4. Protective cover; 5. Connecting plate; 51. Bolt. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Example 1: A cutting tool mechanism suitable for slitting unidirectional glass fiber composite strips, see [link to example]. Figures 1 to 3The system includes two mounting plates 1. One mounting plate 1 has a drive motor 2 and a cylinder 3 mounted on one end. The drive end of the drive motor 2 is equipped with a coupling 21, and an upper rotating shaft 22 is connected to the coupling 21. An upper tool holder 23 is mounted on the outside of the upper rotating shaft 22, and an upper blade 24 is mounted on the outside of the upper tool holder 23. The end of the upper rotating shaft 22 away from the coupling 21 rotates through the mounting plate 1. A drive gear 25 is mounted on the upper rotating shaft 22 on the outside of the mounting plate 1. A connecting shaft is mounted on the drive end of the cylinder 3. 31. A lower tool holder 32 is mounted on the connecting shaft 31. A lower blade 33 is mounted on the outer side of the lower tool holder 32. A polygonal column 34 is mounted on the end of the lower tool holder 32 away from the connecting shaft 31. A polygonal sleeve 35 is slidably fitted on the outer side of the polygonal column 34. The external dimensions of the polygonal column 34 are adapted to the internal dimensions of the polygonal sleeve 35. A lower rotating shaft 36 is mounted on one end of the polygonal sleeve 35. The lower rotating shaft 36 rotatably passes through the mounting plate 1. A driven gear 37 is mounted on the lower rotating shaft 36 on the outer side of the mounting plate 1. 37 meshes with the drive gear 25. The central axis of the upper rotating shaft 22 and the central axis of the lower rotating shaft 36 are parallel to each other and in the same plane. The central axis of the lower rotating shaft 36, the central axis of the polygonal sleeve 35, the central axis of the polygonal column 34, and the central axis of the connecting shaft 31 are on the same horizontal line. During operation, the glass fiber unidirectional composite tape to be cut is placed between the upper blade 24 and the lower blade 33. Then, the polygonal sleeve 35 is slidably sleeved on the outside of the polygonal column 34, thereby pulling the lower blade 33 closer to the upper blade 24 by the cylinder 3, so that the upper blade... The upper blade 24 and the lower blade 33 are pressed together to form a certain pressure. Then, the drive motor 2 is started to drive the upper blade 24 to rotate. Since the drive gear 25 and the driven gear 37 mesh, the lower blade 33 and the upper blade 24 rotate at the same speed, thereby creating a matching cutting edge between the two blades to quickly cut the unidirectional composite fiberglass tape. This avoids the upper blade 24 and the lower blade 33 rubbing against each other and causing the lower blade 33 to rotate for slitting, thereby reducing the wear of the upper blade 24 and the lower blade 33 during slitting and further extending the service life of the upper blade 24 and the lower blade 33.

[0019] For details, see Figure 1 and Figure 2A protective cover 4 is provided at one end of the mounting plate 1 near the driving gear 25 and the driven gear 37, and the protective cover 4 is sleeved on the outside of the driving gear 25 and the driven gear 37. A connecting plate 5 is installed on the mounting plate 1 on one side of the protective cover 4, and a bolt 51 passes through the connecting plate 5 and is threaded to the surface of the protective cover 4. The protective cover 4 can shield the rotating driving gear 25 and the driven gear 37, thereby avoiding the danger of personnel being pinched by the rotation of the driving gear 25 and the driven gear 37. Furthermore, the protective cover 4 can be easily disassembled and assembled by tightening the bolt 51, thereby facilitating the maintenance of the driving gear 25 and the driven gear 37.

[0020] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0021] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A cutting tool mechanism suitable for slitting unidirectional composite fiberglass strips, comprising a mounting plate (1), characterized in that, There are two mounting plates (1). One of the mounting plates (1) is equipped with a drive motor (2) and a cylinder (3) at one end. The drive end of the drive motor (2) is equipped with a coupling (21). An upper rotating shaft (22) is connected to the coupling (21). An upper tool holder (23) is installed on the outside of the upper rotating shaft (22). An upper blade (24) is installed on the outside of the upper tool holder (23). The end of the upper rotating shaft (22) away from the coupling (21) rotates through the mounting plate (1). A drive gear (25) is installed on the upper rotating shaft (22) on the outside of the mounting plate (1). The cylinder (3) has a connecting shaft (31) installed at its drive end. A lower tool holder (32) is installed on the connecting shaft (31). A lower blade (33) is installed on the outer side of the lower tool holder (32). A polygonal column (34) is installed at the end of the lower tool holder (32) away from the connecting shaft (31). A polygonal sleeve (35) is slidably fitted on the outer side of the polygonal column (34). A lower rotating shaft (36) is installed at one end of the polygonal sleeve (35). The lower rotating shaft (36) rotates through the mounting plate (1). A driven gear (37) is installed on the lower rotating shaft (36) on the outer side of the mounting plate (1). The driven gear (37) meshes with the driving gear (25).

2. The cutting tool mechanism suitable for slitting unidirectional composite strips of glass fiber as described in claim 1, characterized in that, The mounting plate (1) is provided with a protective cover (4) at one end near the driving gear (25) and the driven gear (37), and the protective cover (4) is sleeved on the outside of the driving gear (25) and the driven gear (37).

3. The cutting tool mechanism suitable for slitting unidirectional composite strips of glass fiber as described in claim 2, characterized in that, A connecting plate (5) is installed on the mounting plate (1) on one side of the protective cover (4). A bolt (51) passes through the connecting plate (5) and is threaded to the surface of the protective cover (4).

4. The cutting tool mechanism suitable for slitting unidirectional composite strips of glass fiber as described in claim 1, characterized in that, The external dimensions of the polygonal column (34) are adapted to the internal dimensions of the polygonal sleeve (35).

5. The cutting tool mechanism suitable for slitting unidirectional composite strips of glass fiber as described in claim 1, characterized in that, The central axis of the upper rotating shaft (22) and the central axis of the lower rotating shaft (36) are parallel to each other and in the same plane. The central axis of the lower rotating shaft (36), the central axis of the polygonal sleeve (35), the central axis of the polygonal column (34) and the central axis of the connecting shaft (31) are on the same horizontal line.

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