Floating welt water gap cutting device

Abstract

The utility model discloses a floating welting and water gap cutting device, and aims to provide the floating welting and water gap cutting device which is simple in structure, can perform pre-pressing and side-pushing floating positioning on a product, can realize simultaneous cutting of multiple water gaps, and can perform self-adaptive welting cutting according to the water gap positions. The press-fit cutting device comprises a supporting bottom plate and a press-fit cutting assembly, the press-fit cutting assembly comprises a press-fit plate, side pushing positioning modules and cutter modules, the side pushing positioning modules are arranged at the lower end of the press-fit plate, and the fixed ends of the cutter modules are connected with the movable ends of the side pushing positioning modules. The limiting ends of the side pushing positioning modules are matched with the inner side of a product middle frame on the supporting bottom plate, and the cutter ends of the cutter modules are matched with water gap positions of the inner side of the product middle frame. The nozzle cutting device is applied to the technical field of nozzle cutting.

Description

Technical Field

[0001] This invention relates to the technical field of sprue cutting, and in particular to a floating edge-fitting sprue cutting device. Background Technology

[0002] One-piece injection molding is a manufacturing technology that produces a complete product through a single injection molding process. It is primarily used in home furnishings, medical devices, the automotive industry, and consumer electronics, such as the production of casings for mice, keyboards, and headphones. One-piece injection molding offers advantages such as high production efficiency, high overall structural strength, and high design flexibility. To ensure a smooth outer surface, the injection port is located on the inner surface of the product. After injection molding, a portion of the sprue remains at the injection port location. This sprue needs to be cleaned before assembly. Currently, this is mainly done manually using a scraper to cut the sprue, a method that is labor-intensive and requires high precision in alignment. The traditional single-cutting method is inefficient, and repeated cutting can easily cause numerous scratches, affecting product flatness. Furthermore, manual operation poses certain risks and does not meet the safety requirements of enterprises. Automated cutting using an automatic pressing machine with a vision positioning mechanism is an option, but due to the high elasticity of injection molded products, deformation can easily occur during cutting, leading to incomplete sprue removal. For some multi-sprue products, such as keyboard frames, multiple repositioning adjustments are required after one set of sprue cuts. The positioning requirements after repositioning are high, and secondary manual grinding is often necessary, resulting in low cutting accuracy and efficiency. If a simple floating edge-cutting sprue device could be designed that can pre-press and side-push floating positioning of the product, achieve simultaneous cutting of multiple sprue positions, and adaptively cut along the edge based on the sprue position, these problems could be solved. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a floating edge cutting device that has a simple structure, can pre-press and side-push floating positioning of products, can realize simultaneous cutting of multiple water inlets, and can adaptively cut the edge according to the position of the water inlet.

[0004] The technical solution adopted by this utility model is as follows: This utility model includes a supporting base plate and a pressing and cutting assembly. The pressing and cutting assembly includes a pressing plate, a side-push positioning module, and a cutting module. Several sets of the side-push positioning modules are disposed at the lower end of the pressing plate. The fixed ends of several sets of the cutting modules are connected to the movable ends of several sets of the side-push positioning modules. The limiting ends of several sets of the side-push positioning modules cooperate with the inner side of the product frame on the supporting base plate. The cutting ends of several sets of the cutting modules cooperate with the sprue position on the inner side of the product frame.

[0005] Furthermore, the side-push positioning module includes a side-push cylinder, a side-push plate, and a side-push positioning block. Several side-push positioning blocks are arranged parallel to one side of the lower end face of the side-push plate. The side-push plate slides with the lower end face of the pressing plate through several slide rails. The side-push cylinder drives several side-push positioning blocks to cooperate with both sides of the sprue position of the product's middle frame.

[0006] Furthermore, the cutting module includes a cutting bracket, a lifting cylinder, and a cutting module. The pressing plate and several side-push positioning modules are provided with clearance openings at corresponding positions. The cutting bracket is connected to the upper surface of the side-push plate through the clearance openings. The cutting module is located in the middle of the upper surface of the side-push plate. The lifting cylinder is located at the upper end of the cutting bracket. The movable end of the lifting cylinder drives the cutting end of the cutting module to cooperate with the sprue position inside the product frame.

[0007] Furthermore, the cutting module includes a cutting guide seat and a cutting blade, the cutting blade being slidably engaged with the cutting guide seat, the cutting guide seat being disposed in the middle of the upper surface of the side push plate, and the cutting blade being connected to the movable end of the lifting cylinder.

[0008] Furthermore, the cutter is positioned between the two sets of side-push positioning blocks, and the extended line of the cut end of the cutter overlaps with the extended line of the pressing and positioning surface of the side-push positioning blocks.

[0009] Furthermore, the upper surface of the supporting base plate is provided with a plurality of supporting blocks, which cooperate with the lower surface of the main body of the product frame.

[0010] Furthermore, the upper surface of the support base plate is also provided with a number of limiting blocks, which are matched with the outer edge of the main body of the product frame for limiting.

[0011] Furthermore, the lower end of the pressing plate is provided with a plurality of pressing blocks, which cooperate with the upper surface of the main body of the product frame.

[0012] Furthermore, connecting side plates are provided on both sides of the upper surface of the pressing plate, and the pressing plate is connected to the external lifting mechanism through the connecting side plates.

[0013] The beneficial effects of this utility model are: This application can adapt different supporting base plates and pressing and cutting components according to product size and sprue position, with fast changeover speed. It performs preliminary positioning through overall pre-pressing, and then performs multi-directional floating side-push positioning of positioning blocks according to multiple sprue positions. Before cutting, it can adaptively sense and adjust the cutting depth of each sprue. It performs precise cutting through a cutter on the same plane as the limiting surface of the limiting block. Cutting a single sprue will not affect other cutting positions, effectively avoiding problems such as warping, offset or even falling off caused by the product's elasticity during the cutting process, and at the same time, the cutting efficiency is higher. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention;

[0015] Figure 2 This is an exploded view of the present invention;

[0016] Figure 3 This is a side view of the present invention;

[0017] Figure 4 This is a three-dimensional view of the side-push positioning module and the cutting module in cooperation;

[0018] Figure 5 This is a plan view of the side-push positioning module and the cutting module in cooperation;

[0019] Figure 6 This is a perspective view of the cutting module. Detailed Implementation

[0020] like Figures 1 to 6 As shown, in this embodiment, the present invention includes a supporting base plate 1 and a pressing and cutting assembly 2. The pressing and cutting assembly 2 includes a pressing plate 3, a side-push positioning module 4, and a cutting module 5. Several sets of the side-push positioning modules 4 are disposed at the lower end of the pressing plate 3. The fixed ends of several sets of the cutting modules 5 are connected to the movable ends of several sets of the side-push positioning modules 4. The limiting ends of several sets of the side-push positioning modules 4 cooperate with the inner side of the product frame 6 on the supporting base plate 1. The cutting ends of several sets of the cutting modules 5 cooperate with the sprue position on the inner side of the product frame 6. Therefore, before cutting, the pressing plate 3 presses the product frame 6 onto the supporting base plate 1 to prevent displacement. Multiple sets of side-push positioning modules 4, which are adapted to the sprue positions of the product frame 6, simultaneously float and side-push the multiple sprues of the product frame 6 until the whole is stable and does not shift. Multiple sets of cutting modules 5, which move synchronously with the side-push positioning modules 4, cut down at the same time, which can remove multiple sprues from the product. The structure is simple and the cutting efficiency is high.

[0021] like Figures 2 to 5As shown, in this embodiment, the side-push positioning module 4 includes a side-push cylinder 41, a side-push plate 42, and side-push positioning blocks 43. Several side-push positioning blocks 43 are arranged parallel to each other on one side of the lower end face of the side-push plate 42. The side-push plate 42 slides against the lower end face of the pressing plate 3 via several slide rails 44. The side-push cylinder 41 drives several side-push positioning blocks 43 to engage with both sides of the sprue position on the product frame 6. Therefore, the side-push plate 42 drives two sets of parallel side-push positioning blocks 43 to press against both sides of the sprue position on the inner side of the product frame 6, making the force on both sides of the sprue more uniform during the cutting process. Furthermore, multiple sets of sprues can achieve multi-directional adaptive side-push, resulting in more stable overall force distribution. The cutting position can be determined based on the sprue position, leading to high cutting accuracy.

[0022] like Figures 2 to 5 As shown, in this embodiment, the cutting module 5 includes a cutting support 51, a lifting cylinder 52, and a cutting module 53. The pressing plate 3 and several side-push positioning modules 4 are provided with corresponding clearance openings 7. The cutting support 51 is connected to the upper surface of the side-push plate 42 through the clearance openings 7. The cutting module 53 is located in the middle of the upper surface of the side-push plate 42. The lifting cylinder 52 is located at the upper end of the cutting support 51. The movable end of the lifting cylinder 52 drives the cutting end of the cutting module 53 to cooperate with the sprue position inside the product frame 6. Therefore, the cutting module 53 moves synchronously according to the position of the side-push plate 42, effectively avoiding deviation of the cutting position. The positioning point is the cutting point, preventing inconsistent cutting accuracy.

[0023] like Figure 6 As shown, in this embodiment, the cutting module 53 includes a cutting guide seat 531 and a cutting blade 532. The cutting blade 532 is slidably engaged with the cutting guide seat 531. The cutting guide seat 531 is located in the middle of the upper surface of the side push plate 42, and the cutting blade 532 is connected to the movable end of the lifting cylinder 52. Therefore, the cutting guide seat 531 limits the cutting blade 532, ensuring that the cutting blade 532 presses down vertically, preventing incomplete cutting of the sprue or damage to the inner side of the product frame 6 due to oblique cutting.

[0024] like Figure 5 As shown, in this embodiment, the cutter 532 is disposed between the two sets of side-push positioning blocks 43, and the extended direction line of the cut end of the cutter 532 overlaps with the extended lines of the pressing and positioning surfaces of the side-push positioning blocks 43. Therefore, the overlap of the extended direction line of the cut end of the cutter 532 with the extended lines of the pressing and positioning surfaces of the side-push positioning blocks 43 ensures that the side-push pressing and positioning point is the cutting point, thus avoiding the problem of undercutting or overcutting due to inaccurate positioning between the cutter and the sprue.

[0025] like Figures 1 to 3 As shown, in this embodiment, a plurality of support blocks 8 are provided on the upper surface of the support base plate 1, and the plurality of support blocks 8 cooperate with the lower surface of the main body of the product frame 6. Thus, the plurality of support blocks 8 raise the product frame 6 to reserve buffer space for the cutting blade to cut downwards, ensuring that the sprue can fall off normally to the bottom after cutting, facilitating cleaning.

[0026] like Figures 1 to 3 As shown in this embodiment, the upper surface of the supporting base plate 1 is also provided with a plurality of limiting blocks 9, which are engaged with the outer edge of the main body of the product frame 6. Therefore, the limiting blocks 9 ensure that the product frame 6 as a whole does not undergo significant displacement during the pressing process.

[0027] like Figures 1 to 3 As shown, in this embodiment, a plurality of pressing blocks 10 are provided at the lower end of the pressing plate 3, and the plurality of pressing blocks 10 cooperate with the upper end surface of the main body of the product frame 6. Therefore, the plurality of pressing blocks 10 can stably press the product frame 6 onto the plurality of support blocks 8.

[0028] like Figure 1 As shown, in this embodiment, connecting side plates 11 are provided on both sides of the upper surface of the pressing plate 3, and the pressing plate 3 is connected to the external lifting mechanism through the connecting side plates 11. Therefore, the connecting side plates 11 can connect the pressing and cutting assembly 2 to the external lifting and pressing equipment.

[0029] The working principle of this utility model is as follows: Before the equipment is started, the product frame 6 to be cut is placed on the support base plate 1 and pre-positioned by several limiting blocks 9. The pressing plate 3 descends and positions and presses against the product frame 6, stably pressing the product frame 6 onto the support base plate 1. Several side-push cylinders 41 drive the side-push plate 42 to push sideways, so that the two sets of side-push positioning blocks 43 are precisely attached to both sides of the sprue position of the product frame 6. The cutter 532 is positioned above the sprue cutting position. After the several sets of side-push positioning modules 4 are positioned, several sets of lifting cylinders 52 drive the cutter 532 to press down and cut multiple sets of sprue of the product frame 6 simultaneously. After the cutting is completed, each component is reset, the product frame 6 to be cut is replaced, and the above steps are repeated to realize the floating edge cutting of multiple sprue of the product.

[0030] Although the embodiments of this utility model are described with reference to actual solutions, they do not constitute a limitation on the meaning of this utility model. For those skilled in the art, modifications to the implementation schemes and combinations with other schemes based on this specification are obvious.

Claims

1. A floating edge-fitting water nozzle cutting device, comprising a supporting base plate (1) and a pressing and cutting assembly (2), characterized in that: The pressing and cutting assembly (2) includes a pressing plate (3), a side-push positioning module (4), and a cutting module (5). Several sets of the side-push positioning modules (4) are disposed at the lower end of the pressing plate (3). The fixed ends of several sets of the cutting modules (5) are connected to the movable ends of several sets of the side-push positioning modules (4). The limiting ends of several sets of the side-push positioning modules (4) cooperate with the inner side of the product frame (6) on the supporting base plate (1). The cutting ends of several sets of the cutting modules (5) cooperate with the sprue position on the inner side of the product frame (6).

2. The floating edge-fitting water inlet cutting device according to claim 1, characterized in that: The side-push positioning module (4) includes a side-push cylinder (41), a side-push plate (42), and a side-push positioning block (43). Several side-push positioning blocks (43) are arranged in parallel on one side of the lower end face of the side-push plate (42). The side-push plate (42) slides with the lower end face of the pressing plate (3) through several slide rails (44). The side-push cylinder (41) drives several side-push positioning blocks (43) to cooperate with the two sides of the sprue position of the product frame (6).

3. The floating edge-fitting water inlet cutting device according to claim 2, characterized in that: The cutting module (5) includes a cutting bracket (51), a lifting cylinder (52), and a cutting module (53). The pressing plate (3) and several side-push positioning modules (4) are provided with clearance openings (7). The cutting bracket (51) is connected to the upper surface of the side-push plate (42) through the clearance openings (7). The cutting module (53) is located in the middle of the upper surface of the side-push plate (42). The lifting cylinder (52) is located at the upper end of the cutting bracket (51). The moving end of the lifting cylinder (52) drives the cutting end of the cutting module (53) to cooperate with the inner gate position of the product frame (6).

4. The floating edge-fitting water inlet cutting device according to claim 3, characterized in that: The cutting module (53) includes a cutting guide seat (531) and a cutting blade (532). The cutting blade (532) is slidably engaged with the cutting guide seat (531). The cutting guide seat (531) is located in the middle of the upper surface of the side push plate (42). The cutting blade (532) is connected to the movable end of the lifting cylinder (52).

5. A floating edge-fitting water inlet cutting device according to claim 4, characterized in that: The cutter (532) is positioned between the two sets of side-push positioning blocks (43), and the direction extension line of the cut end of the cutter (532) overlaps with the extension line of the pressing positioning surface of the side-push positioning blocks (43).

6. The floating edge-fitting water inlet cutting device according to claim 1, characterized in that: The upper surface of the supporting base plate (1) is provided with a plurality of supporting blocks (8), and the plurality of supporting blocks (8) cooperate with the lower surface of the main body of the product frame (6).

7. A floating edge-fitting water inlet cutting device according to claim 2, characterized in that: The upper surface of the supporting base plate (1) is also provided with a number of limiting blocks (9), and the number of limiting blocks (9) are matched with the outer edge of the main body of the product frame (6).

8. The floating edge-fitting water inlet cutting device according to claim 1, characterized in that: The lower end of the pressing plate (3) is provided with a plurality of pressing blocks (10), and the plurality of pressing blocks (10) cooperate with the upper surface of the main body of the product frame (6).

9. A floating edge-fitting water inlet cutting device according to claim 1, characterized in that: The upper end face of the pressing plate (3) is provided with connecting side plates (11) on both sides, and the pressing plate (3) is connected to the external lifting mechanism through the connecting side plates (11).

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