An automated nozzle cutting machine

Abstract

The utility model provides a kind of automatic water gap cutting machine, it solves the problem of lower cutting efficiency and lower cutting quality of existing water gap cutting machine. Including workbench, workbench surface is equipped with handling mechanism, positioning assembly and with the corresponding lower pressure subassembly of positioning assembly, positioning assembly and lower pressure subassembly cooperate and fix product;Lower pressure subassembly side is equipped with the first bending assembly of upward jacking, handling mechanism bottom surface is equipped with the second bending assembly of downward pressing, the water gap of first bending assembly and second bending assembly cooperate and bend product;First bending assembly below is equipped with cutting assembly.The utility model is widely applied in water gap cutting equipment technical field.

Description

Technical Field

[0001] This application relates to the field of sprue cutting equipment technology, and more specifically, to an automated sprue cutting machine. Background Technology

[0002] During the injection molding process, after plastic is injected into the mold, some material remains at the entrance, forming a raised sprue. To ensure the product's appearance quality and assembly accuracy, the sprue needs to be trimmed. Traditionally, this is done manually using tools like diagonal pliers. This method has significant drawbacks: it relies on manual operation, resulting in low trimming efficiency and failing to meet the demands of mass production. Furthermore, manual trimming makes it difficult to precisely control the magnitude and direction of the shearing force, easily leading to uneven cuts, scratches on the product surface, or sprue residue, all of which affect product quality.

[0003] Currently, most existing technologies employ specialized sprue cutting equipment, using motors and other drive devices to control the cutting blades to cut the sprues. Compared to traditional methods, this ensures consistent force and direction for each cut, reducing the probability of cut deviations and burrs, and decreasing scrap rates due to human error. Furthermore, existing equipment enables automated continuous operation, lowering labor costs. However, in practical applications, existing sprue cutting equipment still suffers from the following problems: Some equipment incorporates sprue bending components, bending the sprue before driving the cutting blade. While this reduces structural strength at the sprue joint and increases cutting speed and efficiency, it is less effective for high-toughness, thick, or complex-shaped sprue materials, resulting in poor bending and cutting accuracy. Additionally, the processes of product handling, positioning, bending, and cutting in existing equipment are independent, leading to complex structures, large equipment footprints, and poor coordination between components. This results in lengthy production processes and production efficiency that cannot meet the demands of large-scale, diversified production. Utility Model Content

[0004] To address the aforementioned problems, the present invention provides an automated sprue cutting machine, which solves the issues of low cutting efficiency and poor cutting quality in existing sprue cutting machines. The machine includes a worktable, on the surface of which is provided a conveying mechanism, a positioning component, and a pressing component corresponding to the positioning component. The positioning component and the pressing component work together to fix the product. A first bending component that lifts upwards is located adjacent to the pressing component, and a second bending component that presses downwards is located on the bottom surface of the conveying mechanism. The first bending component and the second bending component work together to bend the sprue of the product. A cutting component is located below the first bending component.

[0005] Preferably, the first bending assembly includes a first bending drive unit vertically mounted on the workbench and a first rotary drive unit connected to the output end of the first bending drive unit, wherein the output end of the first rotary drive unit is provided with a first bending plate that lifts the water inlet.

[0006] Preferably, the second bending assembly includes a second bending drive unit vertically disposed on the bottom surface of the conveying mechanism, and the output end of the second bending drive unit is provided with a second bending plate that presses down on the water inlet.

[0007] Preferably, the conveying mechanism includes a linear displacement component disposed on the surface of the worktable and an adsorption component that cooperates with the pressing component to adsorb the processed product; the adsorption component includes an optical axis support connected to the moving end of the linear displacement component and a horizontally disposed optical axis, the optical axis being connected to the optical axis support, and a vertically disposed adsorption drive unit being provided at the end of the optical axis, the output end of the adsorption drive unit being connected to a fixing block, and at least one suction cup being provided on the fixing block; a vacuum generator is provided on the optical axis support, and the vacuum generator is connected to the suction cup.

[0008] Preferably, the linear displacement assembly includes a guide rail disposed on the surface of the worktable, a belt drive unit, and a driving wheel and a driven wheel respectively disposed at both ends of the guide rail. The output end of the belt drive unit is connected to the main shaft of the driving wheel. The driving wheel and the driven wheel are connected by a synchronous belt drive. A sliding block is slidably connected on the guide rail and is connected to the synchronous belt. A movable plate is connected to the sliding block and the surface of the movable plate is connected to the optical axis support.

[0009] Preferably, there are two linear displacement components, which are symmetrically arranged on both sides of the positioning component; the moving plate is arranged between two opposing sliding blocks.

[0010] Preferably, the positioning component includes several positioning blocks that are detachably connected to the workbench surface and pads disposed near the first bending component, wherein the positioning blocks and pads cooperate with the bottom contour of the product.

[0011] Preferably, the pressing component includes several pressing drive units vertically arranged outside the positioning component. The output end of the pressing drive unit is connected to a second rotary drive unit, and the output end of the second rotary drive unit is provided with a pressing block for pressing the product downward.

[0012] Preferably, the workbench surface is provided with a sprue recovery port that cooperates with the cutting component, and a downwardly inclined sprue recovery pipe is provided below the sprue recovery port. The outlet of the sprue recovery pipe is connected to a sprue recovery box located on one side of the workbench.

[0013] Preferably, the cutting assembly includes a cutting drive unit and a fixing plate disposed inside the workbench. A cutting blade mounting seat is horizontally slidably connected to the fixing plate. The cutting blade mounting seat is connected to the output end of the cutting drive unit, and a vertically upward blade is provided on the cutting blade mounting seat.

[0014] The beneficial effects of this utility model are as follows: The workbench surface is provided with a conveying mechanism, a positioning component, and a pressing component corresponding to the positioning component. A first bending component that lifts upwards is located adjacent to the pressing component, and a second bending component that presses downwards is located on the bottom surface of the conveying mechanism. The first and second bending components work together to bend the sprue of the product, creating a certain height difference between the sprue and the product, facilitating accurate cutting by the cutting component and improving cutting precision and quality. The bending operation reduces the strength at the connection point, decreasing the resistance experienced by the cutting component during operation, making cutting easier, improving cutting efficiency, and reducing wear on the cutting component. Compared to existing unidirectional bending methods, the first and second bending components, through coordinated operation, solve the problem of bending the sprue of high-toughness products to the correct position. The bidirectional bending method allows for sufficient deformation at the connection between the sprue and the product, resulting in a better bending effect for high-toughness sprues and avoiding quality problems such as low cutting precision and numerous burrs caused by insufficient bending, thus expanding the applicability of the device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a structural diagram of the worktable surface and the conveying mechanism;

[0018] Figure 3 This is a schematic diagram of the structure of the worktable surface;

[0019] Figure 4 This is a schematic diagram of the handling mechanism;

[0020] Figure 5 This is a side view of the present invention;

[0021] Symbol explanations in the diagram: 1. Workbench; 2. Positioning assembly; 3. Pressing assembly; 4. First bending assembly; 5. Second bending assembly; 6. Cutting assembly; 7. Linear displacement assembly; 8. Adsorption assembly; 9. Sprue recovery port; 10. Sprue recovery pipe; 11. Sprue recovery box; 201. Positioning block; 202. Pad block; 301. Pressing drive unit; 302. Second rotation drive unit; 303. Pressing block; 401. First bending drive unit; 4 02. First rotary drive unit; 403. First bending plate; 501. Second bending drive unit; 502. Second bending plate; 601. Fixing plate; 602. Cutting knife mounting base; 603. Blade; 701. Guide rail; 702. Wheel belt drive unit; 703. Sliding block; 704. Moving plate; 801. Optical axis support; 802. Optical axis; 803. Adsorption drive unit; 804. Fixing block; 805. Suction cup; 806. Vacuum generator. Detailed Implementation

[0022] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0023] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0025] An automated sprue cutting machine provided in the embodiments of this application will now be described.

[0026] Please see Figures 1 to 3The automated sprue cutting machine includes a workbench 1. The surface of the workbench 1 is provided with a conveying mechanism, a positioning component 2, and a pressing component 3 corresponding to the positioning component 2. The positioning component 2 and the pressing component 3 cooperate to fix the product. A first bending component 4 that lifts upward is provided on the side adjacent to the pressing component 3. A second bending component 5 that presses downward is provided on the bottom surface of the conveying mechanism. The first bending component 4 and the second bending component 5 cooperate to bend the sprue of the product. A cutting component 6 is provided below the first bending component 4.

[0027] Specifically, in use, the product is placed on the positioning component 2, with the sprue end to be cut close to the first bending component 4. Then, the pressing component 3 presses down, cooperating with the positioning component 2 to limit the product's position, fixing it to the surface of the worktable 1. This prevents displacement of the product during bending and cutting of the sprue, which would affect the cutting accuracy and quality. During cutting, the first bending component 4 first lifts the sprue upwards, bending it upwards. Then, the second bending component 5 presses down on the lifted sprue, bending it downwards. After these two up-and-down movements, the connection between the sprue and the product is fully bent. At this point, the cutting component 6 starts cutting the bent sprue connection. After cutting, the pressing component 3 resets, and the conveying mechanism transfers the finished product to the next station, completing one complete cutting operation. The bending operation of the sprue by the first bending component 4 and the second bending component 5 before cutting creates a certain height difference between the sprue and the product, facilitating accurate cutting by the cutting component 6 and improving cutting accuracy and quality. The bending operation reduces the strength of the connection, decreases the resistance experienced by the cutting component 6 during operation, facilitates cutting, improves cutting efficiency, and reduces the wear of the cutting component 6. Compared with the existing unidirectional bending method, in this embodiment, the first bending component 4 and the second bending component 5 work together to solve the problem of the sprue of high-toughness products being difficult to bend properly. The bidirectional bending method allows the connection between the sprue and the product to deform sufficiently, resulting in a good bending effect on high-toughness sprues. It avoids quality problems such as low cutting accuracy and many burrs caused by insufficient bending, and improves the applicability of the device.

[0028] Please see Figure 3Furthermore, the first bending assembly 4 includes a first bending drive unit 401 vertically mounted on the workbench 1 and a first rotary drive unit 402 connected to the output end of the first bending drive unit 401. The output end of the first rotary drive unit 402 is provided with a first bending plate 403 that lifts the sprue. Specifically, the first bending plate 403 is parallel to the sprue end of the product in its initial position. In use, the first bending drive unit 401 is activated, driving the first rotary drive unit 402 to move upward in the vertical direction. During the upward movement, the first rotary drive unit 402 drives the first bending plate 403 to rotate directly below the sprue. The first bending plate 403 continues to move upward and collides with the sprue, causing the sprue to bend upward. Subsequently, the first bending drive unit 401 drives the first rotary drive unit 402 and the first bending plate 403 to move downward and reset. During the downward movement, the first rotary drive unit 402 drives the first bending plate 403 to rotate back to its initial position, avoiding the second bending assembly 5 and leaving working space for the downward pressing operation of the second bending assembly 5. In this embodiment, the first bending drive unit 401 is a linear displacement drive device including but not limited to cylinders and linear motors, and the first rotation drive unit 402 is a rotation drive device including but not limited to servo motors and stepper motors. The front end of the first bending plate 403 is provided with a protruding limiting screw that cooperates with the sprue. The limiting screw cooperates with the gap of the sprue to limit its position and prevent the sprue from shaking during bending and cutting.

[0029] Please see Figure 3 and Figure 4 Furthermore, the second bending assembly 5 includes a second bending drive unit 501 vertically disposed on the bottom surface of the conveying mechanism. The output end of the second bending drive unit 501 is provided with a second bending plate 502 that presses down on the water inlet. Specifically, the second bending plate 502 is located directly above the water inlet. In use, the second bending drive unit 501 is activated, driving the second bending plate 502 to move downward in the vertical direction. The second bending plate 502 collides with the water inlet, causing the raised water inlet to bend downward, completing the secondary bending operation of the water inlet. Subsequently, the second bending drive unit 501 drives the second bending plate 502 to move upward and reset. In this embodiment, the second bending drive unit 501 is a linear displacement drive device including but not limited to cylinders and linear motors.

[0030] Please see Figures 2 to 4Furthermore, the conveying mechanism includes a linear displacement assembly 7 disposed on the surface of the workbench 1 and an adsorption assembly 8 that cooperates with the pressing assembly 3 to adsorb the processed product; the adsorption assembly 8 includes an optical axis support 801 connected to the moving end of the linear displacement assembly 7 and a horizontally disposed optical axis 802, the optical axis 802 being connected to the optical axis support 801, and a vertically disposed adsorption drive unit 803 being provided at the end of the optical axis 802, the output end of the adsorption drive unit 803 being connected to a fixing block 804, and at least one suction cup 805 being provided on the fixing block 804; a vacuum generator 806 is provided on the optical axis support 801, and the vacuum generator 806 is connected to the suction cup 805. Specifically, after the cutting component 6 completes the cutting of the sprue, the pressing component 3 resets and releases the finished product. Then, the adsorption drive unit 803 starts, and its output end drives the fixed block 804 to move down until the suction cup 805 is in close contact with the top surface of the finished product. The vacuum generator 806 starts to work, generating a vacuum negative pressure in the suction cup 805 to adsorb the processed finished product. Then, the adsorption drive unit 803 acts again, driving the suction cup 805 and the finished product to rise, so that the finished product leaves the positioning component 2. The moving end of the linear displacement component 7 drives the adsorption component 8 and the finished product to move horizontally to the next station.

[0031] Please see Figure 2 and Figure 4 Specifically, the linear displacement component 7 includes a guide rail 701 mounted on the surface of the worktable 1, a belt drive unit 702, and a driving wheel and a driven wheel respectively mounted at both ends of the guide rail 701. The output end of the belt drive unit 702 is connected to the main shaft of the driving wheel. The driving wheel and the driven wheel are connected by a synchronous belt (not shown in the figure). A sliding block 703 is slidably connected to the guide rail 701 and is connected to the synchronous belt. A moving plate 704 is connected to the sliding block 703, and the surface of the moving plate 704 is connected to the optical axis support 801. When the finished product needs to be transported after being adsorbed by the adsorption component 8, the belt drive unit 702 is activated first, sequentially driving the driving wheel, the synchronous belt, and the driven wheel to rotate. Under the action of the synchronous belt, the sliding block 703 slides along the guide rail 701, and the moving plate 704 and the optical axis support 801 move together, thereby driving the finished product to move horizontally to the next workstation. In this embodiment, the belt drive unit 702 is a rotary drive device including but not limited to servo motors and stepper motors.

[0032] Specifically, there are two linear displacement components 7, symmetrically arranged on both sides of the positioning component 2; the moving plate 704 is positioned between two opposing sliding blocks 703. The symmetrical distribution of the two linear displacement components 7 improves the stability of the movement of the moving plate 704. Compared to a single linear displacement component 7, the synchronous cooperation and parallel driving of the two linear displacement components 7 enables the adsorption component 8 to achieve double the stroke, thereby improving the space utilization of the worktable 1 surface.

[0033] Please see Figure 3 Specifically, the positioning component 2 includes several positioning blocks 201 detachably connected to the surface of the workbench 1 and pads 202 positioned near the first bending component 4. The positioning blocks 201 and pads 202 mate with the bottom contour of the product. The pads 202 provide stable auxiliary support for the product, ensuring uniform force distribution during sprue cutting. Operators can pre-adjust the position and number of positioning blocks 201 and pads 202 according to the bottom contour of the product, enabling accurate positioning of products of different shapes and sizes and improving the applicability of the device.

[0034] Please see Figure 2 and Figure 3 Specifically, the pressing component 3 includes several pressing drive units 301 vertically arranged outside the positioning component 2. The output end of the pressing drive unit 301 is connected to a second rotary drive unit 302, and the output end of the second rotary drive unit 302 is provided with a pressing block 303 that presses the product downward. When the product is placed on the positioning component 2, the pressing drive unit 301 is activated, and its output end drives the second rotary drive unit 302 and the pressing block 303 to move downward synchronously. During the downward movement, the second rotary drive unit 302 drives the pressing block 303 to rotate above the product. The pressing block 303 applies a certain pressure to the product, firmly fixing the product on the worktable 1 and ensuring that the product will not be displaced during subsequent processing.

[0035] Please see Figure 3 and Figure 5 Specifically, the workbench 1 has a sprue recovery port 9 that cooperates with the cutting component 6. Below the sprue recovery port 9 is a downwardly inclined sprue recovery pipe 10. The outlet of the sprue recovery pipe 10 is connected to a sprue recovery box 11 located on one side of the workbench 1. Under the action of gravity, the cut sprues and waste materials fall from the sprue recovery port 9 into the sprue recovery pipe 10 and roll down into the sprue recovery box 11. This achieves automatic collection of cutting waste materials and prevents waste materials from accumulating on the surface of the workbench 1.

[0036] Please see Figure 2 and Figure 3Furthermore, the cutting assembly 6 includes a cutting drive unit and a fixed plate 601 disposed inside the workbench 1. A cutting blade mounting seat 602 is horizontally slidably connected to the fixed plate 601. The cutting blade mounting seat 602 is connected to the output end of the cutting drive unit, and a vertically upward-pointing blade 603 is provided on the cutting blade mounting seat 602. In this embodiment, when cutting is required, the cutting drive unit is activated, driving the cutting blade mounting seat 602 to slide along the fixed plate 601. The blade 603 moves horizontally along with it. During the horizontal movement, the blade 603 passes through the sprue return port 9 and moves towards the sprue, cutting the sprue connection. After cutting is completed, the cutting drive unit drives the cutting blade mounting seat 602 to reset, driving the blade 603 back to the initial position, waiting for the next cutting task.

[0037] Please see Figure 1 and Figure 2 In this embodiment, two sprue cutting stations are symmetrically arranged on the surface of the workbench 1, and two adsorption components 8 and a second bending component 5 are symmetrically arranged on the conveying mechanism, which can simultaneously perform sprue cutting and finished product transportation for two products.

[0038] The working process of this utility model is as follows: The product is placed on the positioning component 2, and the pressing component 3 presses down to fix the product. The first bending component 4 first lifts the sprue upward to bend it upward, and then the second bending component 5 presses down on the lifted sprue to bend it downward. At this time, the cutting component 6 starts to cut the connection of the bent sprue. After the cutting is completed, the pressing component 3 resets, and the conveying mechanism transfers the finished product to the next station, completing one complete cutting operation.

[0039] In this invention, the workbench 1 has a conveying mechanism, a positioning component 2, and a pressing component 3 corresponding to the positioning component 2. A first bending component 4, which lifts upwards, is located adjacent to the pressing component 3, and a second bending component 5, which presses downwards, is located on the bottom surface of the conveying mechanism. The first bending component 4 and the second bending component 5 work together to bend the sprue of the product, creating a certain height difference between the sprue and the product. This facilitates accurate cutting by the cutting component 6, improving cutting precision and quality. The bending operation reduces the strength at the connection point, decreasing the resistance experienced by the cutting component 6 during operation, making it easier to cut, improving cutting efficiency, and reducing wear on the cutting component 6. Compared to existing unidirectional bending methods, the first bending component 4 and the second bending component 5, through coordinated operation, solve the problem of bending the sprue of high-toughness products to the correct position. The bidirectional bending method allows for sufficient deformation at the connection between the sprue and the product, resulting in a better bending effect for high-toughness sprues. This avoids quality problems such as low cutting precision and numerous burrs caused by insufficient bending, thus expanding the applicability of the device.

[0040] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. An automated sprue cutting machine, comprising a worktable, characterized in that: The workbench surface is provided with a conveying mechanism, a positioning component, and a pressing component corresponding to the positioning component. The positioning component and the pressing component cooperate to fix the product. A first bending component that lifts upward is provided on the side adjacent to the pressing component. A second bending component that presses downward is provided on the bottom surface of the conveying mechanism. The first bending component and the second bending component cooperate to bend the sprue of the product. A cutting component is provided below the first bending component.

2. The automated sprue cutting machine as described in claim 1, characterized in that: The first bending assembly includes a first bending drive unit vertically disposed on the workbench and a first rotary drive unit connected to the output end of the first bending drive unit. The output end of the first rotary drive unit is provided with a first bending plate that lifts up the sprue.

3. The automated sprue cutting machine as described in claim 1, characterized in that: The second bending assembly includes a second bending drive unit vertically disposed on the bottom surface of the conveying mechanism, and the output end of the second bending drive unit is provided with a second bending plate that presses down on the sprue.

4. An automated sprue cutting machine as described in claim 1, characterized in that: The conveying mechanism includes a linear displacement component disposed on the surface of the worktable and an adsorption component that cooperates with the pressing component to adsorb the processed product; the adsorption component includes an optical axis support connected to the moving end of the linear displacement component and a horizontally disposed optical axis, the optical axis being connected to the optical axis support, and a vertically disposed adsorption drive unit being provided at the end of the optical axis, the output end of the adsorption drive unit being connected to a fixing block, and at least one suction cup being provided on the fixing block; a vacuum generator is provided on the optical axis support, and the vacuum generator is connected to the suction cup.

5. An automated sprue cutting machine as described in claim 4, characterized in that: The linear displacement assembly includes a guide rail disposed on the surface of the worktable, a belt drive unit, and a driving wheel and a driven wheel respectively disposed at both ends of the guide rail. The output end of the belt drive unit is connected to the main shaft of the driving wheel. The driving wheel and the driven wheel are connected by a synchronous belt drive. A sliding block is slidably connected on the guide rail, and the sliding block is connected to the synchronous belt. A moving plate is connected to the sliding block, and the surface of the moving plate is connected to the optical axis support.

6. An automated sprue cutting machine as described in claim 5, characterized in that: The linear displacement component is two in number, and the two linear displacement components are symmetrically arranged on both sides of the positioning component; the moving plate is arranged between the two opposing sliding blocks.

7. An automated sprue cutting machine as described in claim 1, characterized in that: The positioning component includes several positioning blocks that are detachably connected to the surface of the workbench and pads disposed near the first bending component. The positioning blocks and the pads are matched with the bottom contour of the product.

8. An automated sprue cutting machine as described in claim 1, characterized in that: The pressing component includes several pressing drive units vertically arranged outside the positioning component. The output end of the pressing drive unit is connected to a second rotary drive unit, and the output end of the second rotary drive unit is provided with a pressing block that presses the product downward.

9. An automated sprue cutting machine as described in claim 1, characterized in that: The workbench surface is provided with a sprue recovery port that cooperates with the cutting component. Below the sprue recovery port is a downwardly inclined sprue recovery pipe. The outlet of the sprue recovery pipe is connected to a sprue recovery box located on one side of the workbench.

10. An automated sprue cutting machine as described in claim 1, characterized in that: The cutting assembly includes a cutting drive unit and a fixing plate disposed inside the workbench. A cutting blade mounting seat is slidably connected to the fixing plate horizontally. The cutting blade mounting seat is connected to the output end of the cutting drive unit, and a vertically upward-pointing blade is provided on the cutting blade mounting seat.

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