Film tearing and cutting device for SMC (Sheet Molding Compound)
By designing the film tearing and cutting device for SMC sheets, the film is automatically separated by fine-tuning structure and film collection structure, and cutting through the servo motor and hydraulic cylinder drive cutter, the problem of foreign matter entering the film is solved, and product quality and cutting flexibility are improved.
Patent Information
- Application Number
- CN202422214250.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-10
AI Technical Summary
Before cutting the SMC sheet, if the protective film is not removed, it is easy to cause foreign matters to enter the cutting device, affecting product quality.
A film-tearing and cutting device for SMC sheets is designed, using a fine-tuning structure and a film collection structure to cooperate with each other, automatically separate the films on both end surfaces of the sheets, and cut through the servo motor and hydraulic cylinder drive cutter.
It effectively avoids the entry of foreign matter in film, significantly improves product quality, and can adapt to SMC sheets of different thicknesses, and flexibly adjusts cutting parameters.
Smart Images
Figure CN223000645U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of SMC sheet processing, in particular to a film tearing and cutting device for SMC sheets. Background Art
[0002] SMC is mainly composed of synthetic resin (usually unsaturated polyester resin), reinforcing materials (such as chopped glass fibers), and auxiliary materials (including curing agents, initiators, surface treatment agents, thickeners, low shrinkage additives, release agents, colorants, fillers, and crosslinking agents, etc.). Its preparation process is usually as follows: First, the prefabricated resin paste is transferred to a doctor blade box and flows onto the moving carrier film below. At the same time, the glass fiber roving is quickly cut into a certain length (usually 25 mm or 50 mm) by a rotary cutter, and then randomly deposited on the resin slurry. Another film coated with resin paste is covered on it to form a "sandwich" structure of resin paste and glass fiber. Finally, the glass fiber and resin are pressed together by a series of compaction rollers.
[0003] Before molding, SMC sheets are mostly packed in the form of formed sheet structures for convenient subsequent processing. Due to the characteristics of the material itself, protective films are usually attached to both sides of the sheets during packing to protect the surface of the SMC sheets and improve the quality of the surface material. However, if the films are not removed before cutting the SMC sheets, foreign objects are likely to enter during cutting, greatly increasing the probability of affecting the product quality. Summary of the Utility Model
[0004] The purpose of the utility model is to solve the defect that if the film is not removed before cutting the SMC sheet, foreign objects are likely to enter during cutting, greatly reducing the quality of the product. A film tearing and cutting device for SMC sheets is proposed.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A film tearing and cutting device for SMC sheets includes a workbench placed on the ground. The top of the workbench is fixedly connected with uniformly distributed fixing plates. An electric push rod is arranged on the top of the fixing plate. The electric push rod is connected with a feeding pressure roller group through a fine adjustment structure. The outer wall of the workbench is provided with symmetrically distributed connecting plates. The connecting plates are connected with symmetrically distributed limiting covers through a film collecting structure. The top of the workbench is fixedly connected with a cutting box. The outer wall of the cutting box is fixedly connected with a servo motor. The servo motor is connected with a cutting knife through a cutting structure. A notch is opened on the top of the workbench.
[0007] Preferably, the fine-tuning structure includes a limiting port and a slider. The limiting port is arranged on the fixing plate, the slider is slidably connected to the inner wall of the limiting port, and the telescopic end of the electric push rod penetrates through the outer wall of the fixing plate and is fixedly connected to the slider.
[0008] Preferably, the film collecting structure includes symmetrically distributed stepper motors, connecting rods, sliding grooves, threaded holes, film collecting cylinders, and adapter blocks. The stepper motors are fixedly connected to the outer wall of the connecting plate, and the connecting rods are rotatably connected to the outer wall of the connecting plate.
[0009] Preferably, the sliding groove is arranged on the outer wall of the connecting rod, the threaded hole is arranged at one end of the connecting rod away from the connecting plate, the film collecting cylinder is slidably connected to the outer wall of the connecting rod, the adapter block is fixedly connected to the inner wall of the film collecting cylinder, the adapter block is slidably connected to the sliding groove, and the limiting cover is threadedly connected to the threaded hole.
[0010] Preferably, the cutting structure includes a lead screw, a limiting slide bar, a sliding block, an auxiliary groove, a roller, and a hydraulic cylinder. The lead screw is rotatably connected to the inner wall of the cutting box, the limiting slide bar is fixedly connected to the inner wall of the cutting box, the sliding block is slidably connected to the limiting slide bar, the auxiliary groove is arranged on both sides of the inner wall of the cutting box, and the hydraulic cylinder is fixedly connected to the bottom end of the sliding block.
[0011] Preferably, one end of the lead screw penetrates through the outer wall of the cutting box and is fixedly connected to the output end of the servo motor. The sliding block is threadedly connected to the lead screw. The roller is slidably connected to the inner wall of the auxiliary groove, and the telescopic end of the hydraulic cylinder is fixedly connected to the top end of the cutting knife.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] 1. When the present utility model is in use, through the mutual cooperation between the set fine-tuning structure and the film collecting structure, the films on the upper and lower end faces of the SMC sheet can be easily automatically separated before cutting, thereby avoiding the entry of foreign matters in the film and greatly reducing the probability of affecting the product quality.
[0014] 2. When the present utility model is in use, through the mutual cooperation between the fine-tuning structure and the cutting structure, when encountering SMC sheets of different thicknesses, the distance between the feeding pressure roller groups can be adjusted arbitrarily, and the position of the cutting knife can also be adjusted to arbitrarily control the length and width of the cut SMC sheet. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional structural schematic diagram of a film tearing and cutting device for an SMC sheet proposed by the present utility model;
[0016] Figure 2Schematic diagram of the three-dimensional structure of the back of a film tearing and cutting device for SMC sheets proposed by the present utility model;
[0017] Figure 3 Cross-section of the cutting device of a film tearing and cutting device for SMC sheets proposed by the present utility model Figure 1 ;
[0018] Figure 4 Cross-section of the cutting device of a film tearing and cutting device for SMC sheets proposed by the present utility model Figure 2 ;
[0019] Figure 5 Schematic diagram of the three-dimensional structure of the connecting rod of a film tearing and cutting device for SMC sheets proposed by the present utility model;
[0020] Figure 6 Schematic diagram of the three-dimensional structure of the film collecting cylinder of a film tearing and cutting device for SMC sheets proposed by the present utility model.
[0021] In the figure: 1, workbench; 2, fixed plate; 3, electric push rod; 4, feeding pressure roller group; 5, connecting plate; 6, limiting cover; 7, cutting box; 8, servo motor; 9, cutting knife; 10, notch; 11, limiting port; 12, slider; 13, stepping motor; 14, connecting rod; 15, sliding groove; 16, threaded hole; 17, film collecting cylinder; 18, adapter block; 19, lead screw; 20, limiting slide bar; 21, sliding block; 22, auxiliary groove; 23, roller; 24, hydraulic cylinder. Specific embodiments
[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0023] Refer to Figures 1 - 6 , a film tearing and cutting device for SMC sheets, including a workbench 1 placed on the ground. The top of the workbench 1 is fixedly connected with evenly distributed fixed plates 2. The top of the fixed plates 2 is provided with electric push rods 3. The electric push rods 3 are connected with a feeding pressure roller group 4 through a fine-tuning structure. The outer wall of the workbench 1 is provided with symmetrically distributed connecting plates 5. The connecting plates 5 are connected with symmetrically distributed limiting covers 6 through a film collecting structure. The top of the workbench 1 is fixedly connected with a cutting box 7. The outer wall of the cutting box 7 is fixedly connected with a servo motor 8. The servo motor 8 is connected with a cutting knife 9 through a cutting structure. A notch 10 is opened at the top of the workbench 1.
[0024] It should be noted that the electric push rod 3, the servo motor 8, and the stepping motor 13 are prior arts. The specific model specifications need to be selected according to the actual specifications of the device, etc. The specific selection calculation method adopts the prior art in this field, so it will not be elaborated.
[0025] Further, the fine-tuning structure includes a limit port 11 and a slider 12. The limit port 11 is arranged on the fixed plate 2, and the slider 12 is slidably connected to the inner wall of the limit port 11. The telescopic end of the electric push rod 3 penetrates through the outer wall of the fixed plate 2 and is fixedly connected to the slider 12.
[0026] Among them, there are two sets of feeding pressure roller groups 4, which are symmetrically distributed on both sides of the notch 10, and the slider 12 is rotatably connected to the round roller on the feeding pressure roller group 4.
[0027] Further, the film collecting structure includes symmetrically distributed stepping motors 13, connecting rods 14, sliding grooves 15, threaded holes 16, film collecting cylinders 17, and adapter blocks 18. The stepping motors 13 are fixedly connected to the outer wall of the connecting plate 5, and the connecting rods 14 are rotatably connected to the outer wall of the connecting plate 5.
[0028] Among them, the stepping motor 13 is connected to the connecting rod 14 through a coupling, so that the stepping motor 13 can smoothly drive the connecting rod 14 to rotate.
[0029] Further, the sliding groove 15 is arranged on the outer wall of the connecting rod 14, the threaded hole 16 is arranged at one end of the connecting rod 14 away from the connecting plate 5, the film collecting cylinder 17 is slidably connected to the outer wall of the connecting rod 14, the adapter block 18 is fixedly connected to the inner wall of the film collecting cylinder 17, the adapter block 18 is slidably connected to the sliding groove 15, and the limiting cover 6 is threadedly connected to the threaded hole 16.
[0030] Among them, the film collecting cylinders 17 are symmetrically distributed and are respectively arranged above and below the workbench 1, so that the film collecting cylinders 17 can peel and collect the films on both sides of the SMC sheet.
[0031] Further, the cutting structure includes a lead screw 19, a limit slide bar 20, a sliding block 21, an auxiliary groove 22, a roller 23, and a hydraulic cylinder 24. The lead screw 19 is rotatably connected to the inner wall of the cutting box 7, the limit slide bar 20 is fixedly connected to the inner wall of the cutting box 7, the sliding block 21 is slidably connected to the limit slide bar 20, the auxiliary groove 22 is arranged on both sides of the inner wall of the cutting box 7, and the hydraulic cylinder 24 is fixedly connected to the bottom end of the sliding block 21.
[0032] Among them, the limit slide bars 20 are symmetrically arranged, the sliding block 21 moves left and right along the limit slide bar 20, and distance scales are arranged on the limit slide bar 20 to control the position of the cutting knife 9.
[0033] Further, one end of the lead screw 19 penetrates through the outer wall of the cutting box 7 and is fixedly connected to the output end of the servo motor 8. The sliding block 21 is threadedly connected to the lead screw 19. The roller 23 is slidably connected to the inner wall of the auxiliary groove 22. The telescopic end of the hydraulic cylinder 24 is fixedly connected to the top end of the cutter 9.
[0034] Wherein, the outer wall of the sliding block 21 is slidably connected to the inner wall of the cutting box 7. Multiple cutting grooves are provided at the top end of the workbench 1 under the cutting box 7, so that the cutter 9 can cut down more thoroughly.
[0035] Working principle: When performing film tearing and cutting processing on the SMC sheet, the SMC sheet is introduced into the cutting box 7 through two pairs of feeding pressure roller groups 4. Then, the films on the upper and lower end faces of the SMC sheet are wound around the film collecting cylinder 17. By starting the stepping motor 13 to drive the connecting rod 14 to rotate, the connecting rod 14 drives the film collecting cylinder 17 to rotate. The full film collecting cylinder 17 can be taken out by removing the limiting cover 6. After replacing the new film collecting cylinder 17, the limiting cover plate 6 can be screwed in. After tearing the film, the SMC sheet enters the cutting box 7. Then, the servo motor 8 is started. The servo motor 8 drives the lead screw 19 to rotate. The lead screw 19 drives the sliding block 21 to move left and right along the limiting slide rod 20 to a suitable position. Then, the hydraulic cylinder 24 is started to push the cutter 9 to move downward to cut the SMC sheet, thereby avoiding the entry of foreign objects in the film and greatly reducing the probability of affecting the quality of the product.
[0036] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.
Claims
1. A film-tearing and cutting device for SMC sheets, comprising a workbench (1) placed on the ground, characterized in that: The top of the workbench (1) is fixedly connected to a uniformly distributed fixing plate (2), the top of the fixing plate (2) is provided with an electric push rod (3), the electric push rod (3) is connected to a feed roller group (4) through a fine-tuning structure, the outer wall of the workbench (1) is provided with symmetrically distributed connecting plates (5), the connecting plates (5) are connected to symmetrically distributed limiting covers (6) through a film collecting structure, the top of the workbench (1) is fixedly connected to a cutting box (7), the outer wall of the cutting box (7) is fixedly connected to a servo motor (8), the servo motor (8) is connected to a cutter (9) through a cutting structure, and a notch (10) is opened at the top of the workbench (1).
2. The SMC sheet film tearing and cutting device according to claim 1, characterized in that: The fine-tuning structure comprises a limiting opening (11) and a sliding block (12); the limiting opening (11) is arranged on the fixed plate (2); the sliding block (12) is slidably connected to the inner wall of the limiting opening (11); and the telescopic end of the electric push rod (3) passes through the outer wall of the fixed plate (2) and is fixedly connected to the sliding block (12).
3. The SMC sheet film tearing and cutting device according to claim 1, characterized in that: The film collecting structure comprises a symmetrically distributed stepper motor (13), a connecting rod (14), a slide groove (15), a threaded hole (16), a film collecting cylinder (17), and an adapter block (18); the stepper motor (13) is fixedly connected to the outer wall of the connecting plate (5); and the connecting rod (14) is rotatably connected to the outer wall of the connecting plate (5).
4. The SMC sheet film tearing and cutting device according to claim 3 is characterized in that: The slide groove (15) is arranged on the outer wall of the connecting rod (14), the threaded hole (16) is arranged on the end of the connecting rod (14) away from the connecting plate (5), the film collecting cylinder (17) is slidably connected to the outer wall of the connecting rod (14), the adapter block (18) is fixedly connected to the inner wall of the film collecting cylinder (17), the adapter block (18) is slidably connected to the slide groove (15), and the limiting cover (6) is threadedly connected to the threaded hole (16).
5. The SMC sheet film tearing and cutting device according to claim 1, characterized in that: The cutting structure comprises a lead screw (19), a limiting slide bar (20), a sliding block (21), an auxiliary groove (22), a roller (23), and a hydraulic cylinder (24); the lead screw (19) is rotatably connected to the inner wall of the cutting box (7); the limiting slide bar (20) is fixedly connected to the inner wall of the cutting box (7); the sliding block (21) is slidably connected to the limiting slide bar (20); the auxiliary groove (22) is arranged on both sides of the inner wall of the cutting box (7); and the hydraulic cylinder (24) is fixedly connected to the bottom end of the sliding block (21).
6. The SMC sheet film tearing and cutting device according to claim 5, characterized in that: One end of the lead screw (19) penetrates the outer wall of the cutting box (7) and is fixedly connected to the output end of the servo motor (8), the sliding block (21) is threadedly connected to the lead screw (19), the roller (23) is slidably connected to the inner wall of the auxiliary groove (22), and the telescopic end of the hydraulic cylinder (24) is fixedly connected to the top end of the cutter (9).