Oblique shearing mechanism
Through the eccentric cam mechanism and elastic pre-pressure structure of the oblique shear mechanism, the problems of incomplete shearing and uneven edges of the glass fiber cloth are solved, and the smooth cutting of the glass fiber cloth is achieved.
Patent Information
- Application Number
- CN202422933179.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-11-29
AI Technical Summary
The existing fiberglass fabric shearing method can easily lead to problems such as continuous cutting or uneven cutting edges.
The oblique shear mechanism is adopted, and the eccentric cam mechanism is used to drive the tool seat to move back and forth, and the fiberglass cloth is pre-pressed with the elastic pre-pressing structure, and gradually sheared by an inclined shear knife to ensure that the cutting edge is neat and flat.
The smooth cutting of fiberglass cloth is achieved, avoiding the situation of continuous cutting and ensuring the neatness and flatness of the cutting edge.
Smart Images
Figure CN223255736U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of glass fiber cloth preparation equipment, in particular to an oblique shearing mechanism. Background Art
[0002] Fiberglass is an inorganic non-metallic material with excellent performance and a wide variety of types. Its advantages are good insulation, strong heat resistance, good corrosion resistance and high mechanical strength, but its disadvantages are brittleness and poor wear resistance. It is made of six minerals: pyrophyllite, quartz sand, limestone, dolomite, colemanite and magnesia stone, through high-temperature melting, wire drawing, winding and weaving. The diameter of its single filament ranges from several microns to more than twenty microns, which is equivalent to 1 / 20-1 / 5 of a hair. Each bundle of fiber strands is composed of hundreds or even thousands of single filaments. Glass fiber is usually used as a reinforcing material in composite materials and is also the main base material of glass fiber cloth.
[0003] Glass fiber cloth is woven from glass fibers. After weaving, the glass fiber cloth needs to be rolled up and neatly cut after reaching a predetermined length. However, the existing cutting method uses direct punching of the glass fiber cloth. If the glass fiber cloth is not pressed tightly, it may not be cut continuously or the cut edge may be uneven. Summary of the Invention
[0004] In order to solve the problem in the prior art that glass fiber cloth is easily cut or the cutting edge is uneven when shearing the glass fiber cloth, the utility model provides an oblique shearing machine.
[0005] To achieve the above effects, the technical solutions adopted in this application are as follows:
[0006] An inclined shearing mechanism includes a mounting seat, two bearing seats are spaced apart on the mounting seat, and a rotating rod is provided between the two bearing seats; a knife seat is slidably installed under the mounting seat, and the knife seat is connected to a shear knife and an elastic pre-load structure; an eccentric cam mechanism is rotatably installed on the rotating rod to drive the knife seat to slide back and forth relative to the mounting seat, and a positioning base plate for supporting materials is provided under the elastic pre-load structure.
[0007] Furthermore, the cutting edge of the shearing knife is inclined from one end toward the other end of the positioning base plate.
[0008] Furthermore, a driving mechanism for driving the rotating rod to rotate is provided on the mounting seat.
[0009] Furthermore, the positioning base plate is provided with a shearing groove for accommodating the cutting edge of the shearing knife.
[0010] Furthermore, elastic pre-stressing structures are respectively provided on both sides of the shearing knife, and each elastic pre-stressing structure includes two first sliding rods provided on the knife seat, first linear bearings are slidingly provided on the first sliding rods, and pressure plates are fixed on the two first sliding rods; a spring is sleeved on the first sliding rod between the first linear bearing and the pressure plate.
[0011] Furthermore, the eccentric cam mechanism includes two eccentric structures arranged at both ends of the rotating rod, a swing handle is rotatably installed on the eccentric structure, and a traction block is rotatably installed on the part where the two swing handles pass through the mounting seat, and the traction block is fixed on the tool holder.
[0012] Furthermore, a second linear bearing is provided at both ends of the mounting seat, a second sliding rod slides inside the second linear bearing, and the second sliding rod is fixedly connected to the knife seat.
[0013] Furthermore, the driving mechanism includes a planetary reducer mounted on the mounting seat and a servo motor connected thereto, and the planetary reducer is connected to the rotating rod through a coupling.
[0014] Furthermore, a latch-type quick clamp is provided at one end of the mounting seat, and the latch-type quick clamp includes a rotating seat fixed on the mounting seat, a rotating clamp is rotatably mounted on the rotating seat, and a limit hook is rotatably provided on the rotating clamp; a hook seat is installed on the tool holder, and the limit hook cooperates with the hook seat to stop the sliding of the tool holder.
[0015] Furthermore, the hook seat is provided with a limiting notch for limiting the limiting hook.
[0016] Furthermore, the positioning base plate is rotatably mounted on the adjustment seat, and the adjustment seat is provided with a rotation pin, which is used to lock the rotation angle of the positioning base plate relative to the adjustment seat.
[0017] The utility model has the following technical effects:
[0018] When the driving mechanism of the present application drives the eccentric cam mechanism, the knife holder can move back and forth relative to the mounting seat. When moving toward the positioning base plate, the elastic pre-compression structure cooperates with the positioning base plate to pre-compress the glass fiber cloth, and the glass fiber cloth is kept compressed during the continued movement of the knife holder. The lower end of the cutting edge of the shear knife starts to cut the glass fiber cloth, forming a shearing force, which can gradually shear the glass fiber cloth from one side to the other, ensuring that no excessive shearing force is required during the cutting process and that the cutting edge is neat and flat.
[0019] When the driving mechanism of the present application moves the knife holder away from the positioning base plate, the shear knife and the elastic pre-pressing structure leave the positioning base plate and release the cut glass fiber cloth until it is needed again by the driving mechanism. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural schematic diagram of an embodiment of the present utility model.
[0021] Figure 2 This is a schematic diagram of the first perspective structure of the shearing action part in an embodiment of the present utility model.
[0022] Figure 3 This is a schematic diagram of the second perspective structure of the shearing action part in the embodiment of the present utility model.
[0023] In the attached figure:
[0024] 1-mounting seat, 2-bearing seat, 3-rotating rod, 4-knife seat, 5-shearing knife, 6-eccentric cam mechanism, 61-eccentric structure, 62-swing handle, 63-traction block, 7-elastic preload structure, 71-first linear bearing, 72-first sliding rod, 73-pressure plate, 74-spring, 8-positioning base plate, 9-driving mechanism, 91-planetary reducer, 92-servo motor, 10-shearing groove, 11-second linear bearing, 12-second sliding rod, 13-latch type quick clamp, 131-rotating seat, 132-rotating clamp, 133-limiting hook, 134-hook seat, 135-limiting notch, 14-adjusting seat. DETAILED DESCRIPTION
[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.
[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.
[0028] In the description of this application, it should be noted that the terms "upper," "vertical," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the application is typically placed when in use, or are the orientations or positional relationships commonly understood by those skilled in the art. These terms are intended only to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0029] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.
[0030] Example 1
[0031] like Figure 1 As shown, an oblique shearing mechanism includes a mounting seat 1, on which are spaced two bearing seats 2, with a rotating rod 3 provided between the two bearing seats 2; a knife seat 4 is slidably mounted below the mounting seat 1, the knife seat 4 being connected to a shearing knife 5 and an elastic pre-stressing structure 7; an eccentric cam mechanism 6 is rotatably mounted on the rotating rod 3 to drive the knife seat 4 to slide back and forth relative to the mounting seat 1, and a positioning base plate 8 for supporting the material is provided below the elastic pre-stressing structure 7. In this application, when the driving mechanism drives the eccentric cam mechanism, the knife seat can move back and forth relative to the mounting seat. When it moves toward the positioning base plate, the elastic pre-stressing structure cooperates with the positioning base plate to pre-press the glass fiber cloth, and the glass fiber cloth is kept pressed during the continued movement of the knife seat, and the lower end of the cutting edge of the shearing knife begins to cut the glass fiber cloth, forming a shearing force, which can gradually shear the glass fiber cloth from one side to the other, ensuring that no excessive shearing force is required during the cutting process and that the cut edge is neat and flat. When the driving mechanism of the present application moves the knife holder away from the positioning base plate, the shear knife and the elastic pre-pressing structure leave the positioning base plate and release the cut glass fiber cloth until it is needed again by the driving mechanism.
[0032] Example 2
[0033] See also Figure 1-Figure 3As shown, in an embodiment of the present invention, an inclined shearing mechanism is proposed, which is installed in a glass fiber cloth preparation line and is used to cut the glass fiber cloth. The specific installation method can be adapted to the assembly line layout. Specifically, it includes a mounting seat 1 and a bearing seat 2 spaced apart on the mounting seat 1. The bearing seat 2 is provided with a rotating rod 3, and a knife seat 4 and a shearing knife 5 fixed to the knife seat 4 are slidably mounted on the mounting seat 1. The rotating rod 3 is rotatably mounted with an eccentric cam mechanism 6 for driving the knife seat 4 to slide back and forth relative to the mounting seat 1. The knife seat 4 is installed with an elastic pre-stressing structure 7. When the rotating rod 3 rotates, the eccentric cam mechanism 6 drives the knife seat 4 to move back and forth relative to the mounting seat 1, thereby achieving synchronous reciprocating movement of the elastic pre-stressing structure 7 and the shearing knife 5. It also includes a positioning base plate 8 for supporting the material and located below the elastic pre-stressing structure 7. The cutting edge of the shearing knife 5 is inclined from one end of the positioning base plate 8 toward the other end.
[0034] When the eccentric cam mechanism 6 moves toward the side of the positioning base plate 8 with the knife holder 4, the shearing knife 5, and the elastic pre-load structure 7, the elastic pre-load structure 7 first contacts the positioning base plate 8 to press and position the shearing part of the glass fiber cloth, and continues to move downward toward the knife holder 4 to make the pressing effect more stable, and the lower end of the cutting edge of the shearing knife 5 first contacts the glass fiber cloth, and gradually cuts from one side of the glass fiber cloth to the other side, similar to using a scissors mode to achieve shearing, thereby not needing to form a large shear force on the glass fiber cloth, avoiding the situation where the glass fiber is pulled, and at the same time being able to keep the cut edge of the glass fiber cloth flat and neat.
[0035] Specifically, the rotating rod 3 is driven to rotate, and a driving mechanism 9 for driving the rotating rod 3 to rotate is provided on the mounting base 1. The specific driving mechanism 9 can be a mechanism that realizes a rotation action, such as a rotary cylinder, a rotary motor, etc.
[0036] In this embodiment, in order to ensure the continuity of the shearing action and to allow the eccentric cam mechanism 6 to have a controllable state when it runs to the top dead center and the bottom dead center, the driving mechanism 9 includes a planetary reducer 91 installed on the mounting seat 1 and a servo motor 92 installed on the planetary reducer 91. The planetary reducer 91 is connected to the rotating rod 3 through a coupling. The controllability of the servo motor 92 can achieve reciprocating rotation within the range of the top dead center and the bottom dead center, and transmit power to the rotating rod 3 through the planetary reducer 91 and the coupling.
[0037] Specifically, in order to allow the cutting edge of the shearing knife 5 to fully penetrate the glass fiber cloth, a shearing groove 10 for accommodating the cutting edge of the shearing knife 5 is provided on the positioning base plate 8. After the cutting edge is fully inserted into the shearing groove 10, it is ensured that the glass fiber cloth is completely cut off. At the same time, the cutting edge is adapted to the inclined setting mode, so that the lower end has space to avoid on the positioning base plate 8.
[0038] In order to achieve compression on both sides of the glass fiber cloth during the shearing process, the number of the elastic pre-compression structures 7 is two and they are respectively located on both sides of the shearing knife 5. Specifically, the elastic pre-compression structure 7 includes a first linear bearing 71 arranged at intervals on the knife seat 4, and a first sliding rod 72 slidingly arranged on the first linear bearing 71, and a pressure plate 73 is fixed on the two first sliding rods 72; the first sliding rod 72 is provided with a spring 74 located between the first linear bearing 71 and the pressure plate 73, and the action of the spring 74 keeps the pressure plate 73 having a tendency to slide toward the side of the positioning base plate 8, and the glass fiber cloth can be continuously compressed during the contact process between the pressure plate 73 and the positioning base plate 8, so that the compression state achieved as the pressure plate 73 is closer to the positioning base plate 8 is more stable, and after the downward pressure is released, the pressure plate 73 can reset and slide.
[0039] The tool holder 4 can reciprocate relative to the mounting seat 1 through the eccentric cam mechanism 6. Specifically, the eccentric cam mechanism 6 includes an eccentric structure 61 arranged at intervals on the rotating rod 3. A swing handle 62 is rotatably installed on the eccentric structure 61. The two swing handles 62 are rotatably installed on the parts where the mounting seat 1 passes through, and the traction blocks 63 are fixed on the tool holder 4. The specific rotation installation can be connected through bearings. When the eccentric structure 61 integrated on the rotating rod 3 rotates with the rotating rod 3, it will swing with the swing handle 62. In addition, since the swing handle 62 rotates in coordination with the traction block 63, and the traction block 63 is fixed on the tool holder 4, it can only slide relative to the mounting seat 1. Therefore, when the swing handle 62 swings, it follows the eccentric structure 61 to reciprocate between the upper dead center and the lower dead center, and drives the tool holder 4 to reciprocate synchronously through the traction block 63.
[0040] Specifically, the knife seat 4 needs to be guided and positioned when sliding relative to the mounting seat 1. A second linear bearing 11 and a second sliding rod 12 slidingly arranged on the second linear bearing 11 are provided on the mounting seat 1 at intervals. The second sliding rod 12 is fixedly connected to the knife seat 4.
[0041] When the shearing function is not in use, in order to avoid the knife holder 4 from moving down due to misoperation and the like, resulting in an unexpected situation, the entire mechanism also includes a latch-type quick clamp 13. The latch-type quick clamp 13 includes a rotating seat 131 fixed to the mounting seat 1, and a rotating clamp 132 is rotatably mounted on the rotating seat 131. A limiting hook 133 is rotatably provided on the rotating clamp 132. At the same time, a hook seat 134 is installed on the knife holder 4. The limiting hook 133 cooperates with the hook seat 134 to stop the sliding of the knife holder 4. By pulling the rotating clamp 132 relative to the rotating seat 131, the limiting hook 133 and the hook seat 134 cooperate to limit the locking state to prevent the knife holder 4 from moving relative to each other. In the use state, the limiting hook 133 can be separated from the hook seat 134 to unlock the door, thereby improving safety during use.
[0042] In order to form an anti-escape limit for the limiting hook 133 when it is matched with the hook seat 134, a limiting notch 135 for limiting the limiting hook 133 is provided on the hook seat 134. When the limiting hook 133 is inserted into the limiting notch 135 in the matched state, it will not slide out easily, thereby improving safety.
[0043] The positioning base plate 8 can relatively adjust its installation angle to achieve the flatness of the glass fiber cloth during shearing. It specifically also includes an adjusting seat 14. The positioning base plate 8 is rotatably installed on the adjusting seat 14. The adjusting seat 14 is provided with a rotating pin for locking the rotation angle of the positioning base plate 8 relative to the adjusting seat 14. The adjusting seat 14 is fixed in the assembly line to form a rotating installation base for the positioning base plate 8. The rotating pin is used to realize the rotation adjustment angle of the positioning base plate 8 relative to the adjusting seat 14 and to limit it, such as a pin shaft with a threaded structure, etc., which can be rotated when loose and locked in a tightened state.
[0044] It should also be noted that the linear bearings, sliding rods, motors, reducers and other components involved in the application of this embodiment are all mature products and can be directly applied to the solution of this embodiment.
[0045] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0046] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., etc., are used solely for distinction and description, and should not be construed as indicating or implying relative importance.
[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
Claims
1. An oblique shearing mechanism, characterized in that: The invention comprises a mounting seat (1), two bearing seats (2) are spaced apart on the mounting seat (1), and a rotating rod (3) is provided between the two bearing seats (2); a knife seat (4) is slidably installed below the mounting seat (1), the knife seat (4) is connected to a shear knife (5) and an elastic pre-pressing structure (7), an eccentric cam mechanism (6) is rotatably installed on the rotating rod (3) for driving the knife seat (4) to slide back and forth relative to the mounting seat (1), and a positioning base plate (8) for supporting materials is provided below the elastic pre-pressing structure (7).
2. The oblique shearing mechanism according to claim 1, characterized in that: The cutting edge of the shearing knife (5) is arranged obliquely from one end of the positioning base plate (8) toward the other end.
3. The oblique shearing mechanism according to claim 1, characterized in that: The mounting seat (1) is provided with a driving mechanism (9) for driving the rotating rod (3) to rotate.
4. The oblique shearing mechanism according to claim 1, characterized in that: Elastic pre-stressing structures (7) are respectively provided on both sides of the shearing knife (5), and each elastic pre-stressing structure (7) includes two first sliding rods (72) provided on the knife seat (4), a first linear bearing (71) is slidably provided on the first sliding rods (72), and a pressure plate (73) is fixed on the two first sliding rods (72); a spring (74) is sleeved on the first sliding rod (72) between the first linear bearing (71) and the pressure plate (73).
5. The oblique shearing mechanism according to claim 1, characterized in that: The eccentric cam mechanism (6) comprises two eccentric structures (61) arranged at both ends of the rotating rod (3), a swing handle (62) being rotatably mounted on the eccentric structure (61), and a traction block (63) being rotatably mounted on the portion where the two swing handles (62) pass through the mounting seat (1), and the traction block (63) is fixed on the knife seat (4).
6. The oblique shearing mechanism according to claim 1, characterized in that: Second linear bearings (11) are provided at both ends of the mounting seat (1), a second sliding rod (12) slides inside the second linear bearing (11), and the second sliding rod (12) is fixedly connected to the knife seat (4).
7. The oblique shearing mechanism according to claim 3, characterized in that: The driving mechanism (9) comprises a planetary reducer (91) mounted on the mounting seat (1) and a servo motor (92) connected thereto, wherein the planetary reducer (91) is connected to the rotating rod (3) via a coupling.
8. The oblique shearing mechanism according to claim 1, characterized in that: A latch-type quick clamp (13) is provided at one end of the mounting seat, and the latch-type quick clamp (13) includes a rotating seat (131) fixed on the mounting seat (1), a rotating clamp (132) is rotatably mounted on the rotating seat (131), and a limiting hook (133) is rotatably provided on the rotating clamp (132); a hook seat (134) is installed on the knife seat (4), and the limiting hook (133) cooperates with the hook seat (134) to form a stop for the sliding of the knife seat (4).
9. The oblique shearing mechanism according to claim 8, characterized in that: The hook seat (134) is provided with a limiting notch (135) for limiting the limiting hook (133).
10. The oblique shearing mechanism according to claim 1, characterized in that: The positioning base plate (8) is provided with a shearing groove (10) for accommodating the cutting edge of the shearing knife (5); the positioning base plate (8) is rotatably mounted on an adjustment seat (14), and a rotation pin is provided on the adjustment seat (14).