Injection molding part water gap shearing device

Abstract

The utility model provides a kind of injection molding part water gap shearing device, including pruning workbench, and the rotatable setting of rotating drive mechanism is provided with platform on pruning workbench, and the at least one side of platform is fixedly provided with multiple placing seat, and placing seat is equipped with positioning clamping mechanism and the shearing hole in the clamping area of positioning clamping mechanism, and water gap shearing mechanism is movably provided on platform at each placing seat by shearing moving mechanism, and the shearing execution end of water gap shearing mechanism passes through shearing hole and extends into clamping area.The utility model can realize the double improvement of shearing and sorting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of shearing device technology, and more specifically, to a sprue shearing device for injection molded parts. Background Technology

[0002] In injection molding, injection molded parts with sprue gates need to be de-gated after demolding. Currently, the mainstream production mode uses a combination of robotic arms and fixtures to pick up the parts, followed by manual shearing. Specifically, after the injection molded parts with sprue gates are transferred from the mold to the finishing table by a mechanical device, operators need to use manual tools to cut off the sprue gates one by one and manually separate the finished product from the sprue waste. This operation method not only has the problems of high labor intensity and production efficiency limited by manual operation, but also the continuous repetitive shearing action can easily lead to operator fatigue and increase the risk of accidental injury. At the same time, there is a risk of quality fluctuation in the manual sorting process. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of manual cutting and sorting in the prior art, which are characterized by low efficiency and high operational risks. It provides a cutting device for injection molded parts that can safely and in batches cut multiple injection molded parts sprues and automatically sort the finished products after cutting, thereby improving both cutting and sorting efficiency.

[0004] To solve the above problems, this utility model provides a sprue shearing device for injection molded parts, including a trimming worktable. A platform is rotatably mounted on the trimming worktable via a rotary drive mechanism. At least one side of the platform is fixedly provided with multiple placement seats. The placement seats are provided with a positioning clamping mechanism and a shearing hole located in the clamping area of ​​the positioning clamping mechanism. A sprue shearing mechanism is movably mounted on the platform at each placement seat via a shearing moving mechanism. The shearing execution end of the sprue shearing mechanism passes through the shearing hole and extends into the clamping area. Compared with the prior art, the advantages of this utility model are as follows: This utility model uses a rotary drive mechanism to drive the platform to flip, and in conjunction with a multi-station placement layout, it realizes batch clamping and positioning of injection molded parts, batch shearing, and batch sorting of finished products after shearing. This greatly improves the efficiency of injection molded part sprue shearing and finished product sorting. Among them, the positioning and clamping mechanism and the shearing hole work together to form a spatial constraint reference, so that the shearing execution end of the sprue shearing mechanism moves precisely along the shearing hole to the root of the sprue, avoiding surface damage caused by shearing deviation. The shearing moving mechanism drives multiple sets of sprue shearing mechanisms to operate independently, realizing parallel shearing of multiple injection molded parts sprues, breaking through the efficiency bottleneck of manual one-by-one cutting. After shearing, the finished products are separated by gravity through platform flipping, and the waste is picked up and recycled by the loading robot with the help of clamps. The sorting process does not require manual intervention. The closed structure of the trimming workbench, together with the shearing hole to guide and constrain the waste, effectively suppresses shearing splash and improves operational safety.

[0005] As an improvement, multiple placement seats are staggered front-to-back and left-to-right on the platform. By employing this structure, a high-density multi-station arrangement is achieved within the limited space of the platform through a three-dimensional staggered layout of multiple placement seats, significantly improving space utilization. The staggered distribution structure creates a spatially complementary relationship between the motion paths of adjacent shearing mechanisms, effectively avoiding trajectory interference during simultaneous operation of multiple cutter heads. This layout further optimizes the overall structure of the platform, reducing its volume through compact design, lowering the load inertia of the rotary drive mechanism, and simultaneously improving the flipping response speed and operational stability.

[0006] As an improvement, the positioning and clamping mechanism includes a set of clamping blocks on both sides of the shearing hole and a pair of push cylinders. The pair of push cylinders are symmetrically fixed on both sides of the placement seat, and the piston rods of the pair of push cylinders extend towards each other. The clamping blocks are fixedly connected to the ends of the piston rods of the corresponding push cylinders. With this structure, the clamping blocks on both sides of the shearing hole work together with the symmetrically arranged push cylinders on the outside. The piston rods of the push cylinders drive the clamping blocks to form a bidirectional balanced clamping force, which effectively counteracts the lateral impact force generated during the shearing operation and prevents the injection molded part from shifting or deflecting during the shearing process. The rigid connection design between the clamping blocks and the piston rods of the push cylinders ensures that the clamping action is precise and controllable, so that the injection molded part is stably positioned in the clamping area, avoiding product surface indentations or shearing misalignment caused by uneven clamping pressure, and significantly improving shearing accuracy and finished product quality.

[0007] As an improvement, the inner end of the clamping block is provided with a contoured groove that matches the outer contour of the injection molded part. With this structure, the precise matching of the contoured groove with the shape of the injection molded part creates a surface-contact, enveloping positioning during clamping, effectively dispersing clamping stress and preventing indentations or deformation on the surface of the injection molded part due to excessive localized stress. This also improves clamping stability, ensuring no displacement or shifting of the injection molded part during shearing operations, thus guaranteeing shearing accuracy and quality.

[0008] Specifically, the rotary drive mechanism includes a rotary cylinder and a column fixed between the trimming worktable and the rotary cylinder. The rotary cylinder is horizontally positioned on the upper part of the column, with its rotary output end extending towards the upper area of ​​the trimming worktable. The platform is fixedly connected to the rotary output end of the rotary cylinder. With this structure, the rotary cylinder and trimming worktable are rigidly connected by the column to form a stable support structure, allowing the platform to achieve precise flipping and positioning under the drive of the rotary cylinder. The layout design of the platform above the trimming worktable, combined with the gravity-fall characteristic of the injection-molded parts after flipping, ensures that the cut finished products fall vertically and directly converge on the collection area on the worktable surface, achieving spatial integration of the cutting and collection processes. This structure also optimizes the longitudinal space occupied by the equipment, avoiding the additional floor space required by traditional lateral sorting mechanisms, and significantly improving the continuity of the work process and the utilization rate of the space.

[0009] As an improvement, a conveyor belt extends horizontally from the top of the trimming workbench, with its starting end extending into the area below the platform. By implementing this structure, the horizontal extension of the conveyor belt to the space below the platform allows finished products sorted and flipped by the platform to fall precisely into the starting end of the conveyor belt via a free-fall mechanism. The continuous conveying characteristic of the conveyor belt enables the automatic transfer of finished products after shearing. This structure simultaneously creates a vertically superimposed layout between the shearing and conveying areas, achieving seamless integration of the shearing and conveying processes without requiring additional equipment floor space. This eliminates the risk of surface bumps caused by manual handling and reduces process changeover time to zero through process integration, significantly improving the overall production line cycle time. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0011] Figure 2 This is a partial structural schematic diagram of the present invention;

[0012] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0013] Explanation of reference numerals in the attached figures:

[0014] 1. Trimming workbench; 2. Rotary drive mechanism; 21. Rotary cylinder; 22. Column; 3. Platform; 4. Placement seat; 40. Shearing hole; 5. Positioning and clamping mechanism; 50. Clamping area; 51. Clamping block; 510. Contouring groove; 52. Push cylinder; 6. Shearing movement mechanism; 7. Sprue shearing mechanism; 8. Conveyor belt. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] like Figure 1 and Figure 2As shown, a sprue shearing device for injection molded parts includes a trimming worktable 1. A platform 3 is rotatably mounted on the trimming worktable 1 via a rotary drive mechanism 2. At least one side of the platform 3 is fixedly provided with a plurality of placement seats 4. A plurality of support columns are supported between the placement seats 4 and the platform 3. The placement seats 4 are raised and mounted on the platform 3 via the support columns. The placement seats 4 are provided with a positioning clamping mechanism 5 and a shearing hole 40 located in the clamping area 50 of the positioning clamping mechanism 5. A sprue shearing mechanism 7 is movably mounted on the platform 3 at each placement seat 4 via a shearing moving mechanism 6. The shearing execution end of the sprue shearing mechanism 7 passes through the shearing hole 40 and extends into the clamping area 50. In this embodiment, the rotary drive mechanism 2 drives the platform 3 to flip, and the multi-station placement seat 4 layout realizes batch clamping and positioning of injection molded parts, batch shearing, and batch sorting of finished products after shearing. This greatly improves the efficiency of injection molded part gate shearing and finished product sorting. Among them, the positioning and clamping mechanism 5 and the shearing hole 40 work together to form a spatial constraint reference, so that the shearing execution end of the gate shearing mechanism 7 can move precisely to the root of the gate along the shearing hole 40, avoiding surface damage caused by shearing deviation. The shearing moving mechanism 6 drives multiple sets of gate shearing mechanisms 7 to work independently, realizing parallel shearing of multiple injection molded parts gates, breaking through the efficiency bottleneck of manual one-by-one cutting. After shearing, the finished products are separated by gravity by flipping the platform 3, and the waste is picked up and recycled by the loading robot with the help of the clamp. The sorting process does not require manual intervention. The closed structure of the trimming workbench 1, together with the shearing hole 40, guides and constrains the waste, effectively suppressing shearing splash and improving the safety of operation.

[0017] like Figure 2 As shown, multiple placement seats 4 are staggered front to back and left to right on the platform 3. Each placement seat 4 is equipped with no less than three sets of sprue shearing mechanisms 7 and shearing moving mechanisms 6. Depending on the number of sprue cutters in the injection molded part, each placement seat 4 is usually equipped with four sets of sprue shearing mechanisms 7 and shearing moving mechanisms 6. When there are four sets of sprue shearing mechanisms 7 and shearing moving mechanisms 6, the shearing moving mechanisms 6 are arranged on the platform 3 below the placement seat 4, with one in each direction. Since the multiple placement seats 4 are staggered front to back and left to right on the platform 3, the adjacent sprue shearing mechanisms 7 on two adjacent placement seats 4 will be staggered front to back or left to right, without interference. After applying this structure, by adopting a three-dimensional staggered layout of multiple placement seats 4 in the front-back and left-right directions, a high-density arrangement of multiple workstations can be achieved in the limited space of the platform 3, which significantly improves the space utilization rate. The staggered distribution structure makes the motion paths of adjacent shearing mechanisms form a spatial complementary relationship, effectively avoiding trajectory interference when multiple cutter heads are operating synchronously. This layout further optimizes the overall structure of the platform 3, reduces the volume of the platform 3 through compact design, reduces the load inertia of the rotary drive mechanism 2, and improves the flipping response speed and operational stability.

[0018] like Figure 3 As shown, the positioning and clamping mechanism 5 includes a set of clamping blocks 51 arranged on both sides of the shearing hole 40 and a pair of push cylinders 52. The pair of push cylinders 52 are symmetrically fixed on both sides of the placement seat 4, and the piston rods of the pair of push cylinders 52 extend towards each other. The clamping blocks 51 are respectively fixedly connected to the ends of the piston rods of the corresponding push cylinders 52. After applying this structure, through the coordinated action of the clamping blocks 51 arranged on both sides of the shearing hole 40 and the push cylinders 52 arranged symmetrically on the outside, the piston rods of the push cylinders 52 drive the clamping blocks 51 to form a bidirectional balanced clamping force, which effectively counteracts the lateral impact force generated during the shearing operation and prevents the injection molded part from shifting or deflecting during the shearing process. The rigid connection design between the clamping blocks 51 and the piston rods of the push cylinders 52 ensures that the clamping action is precise and controllable, so that the injection molded part is stably positioned in the clamping area 50, avoiding product surface indentations or shearing misalignment caused by uneven clamping pressure, and significantly improving shearing accuracy and finished product quality.

[0019] like Figure 3 As shown, the inner end of the clamping block 51 is provided with a contoured groove 510 that matches the outer contour of the injection molded part. By applying this structure, the precise matching of the contoured groove 510 with the shape of the injection molded part creates a surface-contact, enveloping positioning during clamping, effectively dispersing clamping stress and preventing indentations or deformation on the surface of the injection molded part due to excessive localized force. This also improves clamping stability, ensuring no displacement or shift of the injection molded part during shearing operations, thus guaranteeing shearing accuracy and quality.

[0020] like Figure 1 As shown, the rotary drive mechanism 2 includes a rotary cylinder 21 and a column 22 supported and fixed between the trimming workbench 1 and the rotary cylinder 21. The rotary cylinder 21 is horizontally positioned above the column 22, and its rotary output end extends towards the upper area of ​​the trimming workbench 1. The platform 3 is fixedly connected to the rotary output end of the rotary cylinder 21. With this structure, the column 22 rigidly connects the rotary cylinder 21 and the trimming workbench 1 to form a stable support structure, enabling the platform 3 to achieve precise flipping and positioning under the drive of the rotary cylinder 21. The layout of the platform 3 above the trimming workbench 1, combined with the gravity-fall characteristic of the injection-molded parts after flipping, ensures that the cut finished products fall vertically and directly converge onto the collection area on the workbench surface, achieving spatial integration of the cutting and collection processes. This structure also optimizes the longitudinal space occupied by the equipment, avoiding the additional floor space required by traditional lateral sorting mechanisms, and significantly improving the continuity of the work process and the utilization rate of the site.

[0021] like Figure 1As shown, a conveyor belt 8 extends horizontally from the top of the trimming workbench 1, with the starting end of the conveyor belt 8 extending into the area below the platform 3. By applying this structure, the spatial connection design of the horizontal extension of the conveyor belt 8 to the area below the platform 3 allows the finished products sorted and flipped by the platform 3 to fall precisely into the starting end of the conveyor belt 8 via a free-fall without power. The continuous conveying characteristic of the conveyor belt 8 enables the automatic transfer of the finished products after shearing. This structure simultaneously constructs a vertical spatial superposition layout between the shearing area and the conveying area, achieving seamless connection between the shearing and conveying processes without requiring additional equipment floor space. This eliminates the risk of surface bumps caused by manual handling and reduces process changeover time to zero through process integration, significantly improving the overall operating cycle time of the production line.

[0022] Although the disclosure is as stated above, the scope of protection of this disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this utility model.

Claims

1. A sprue shearing device for injection molded parts, comprising a trimming workbench (1), characterized in that: The trimming workbench (1) is provided with a platform (3) that can be flipped by a rotary drive mechanism (2). At least one side of the platform (3) is fixedly provided with a plurality of placement seats (4). The placement seats (4) are provided with a positioning clamping mechanism (5) and a shearing hole (40) located in the clamping area (50) of the positioning clamping mechanism (5). A sprue shearing mechanism (7) is provided on the platform (3) at each of the placement seats (4) by a shearing moving mechanism (6). The shearing execution end of the sprue shearing mechanism (7) passes through the shearing hole (40) and extends into the clamping area (50).

2. The injection molding part sprue shearing device according to claim 1, characterized in that: Multiple placement seats (4) are staggered front to back and left to right on the platform (3).

3. The injection molding part sprue shearing device according to claim 1, characterized in that: The positioning and clamping mechanism (5) includes a set of clamping blocks (51) arranged on both sides of the shearing hole (40) and a pair of push cylinders (52). The pair of push cylinders (52) are symmetrically fixed on both sides of the placement seat (4), and the piston rods of the pair of push cylinders (52) extend towards each other. The clamping blocks (51) are respectively fixedly connected to the piston rod ends of the corresponding push cylinders (52).

4. The injection molding part sprue shearing device according to claim 3, characterized in that: The inner end of the clamping block (51) is provided with a contoured groove (510) that matches the outer contour of the injection molded part.

5. The injection molding part sprue shearing device according to claim 1, characterized in that: The rotary drive mechanism (2) includes a rotary cylinder (21) and a column (22) that is supported and fixed between the trimming workbench (1) and the rotary cylinder (21). The rotary cylinder (21) is horizontally arranged on the upper part of the column (22) and its rotary output end extends to the upper area of ​​the trimming workbench (1). The platform (3) is fixedly connected to the rotary output end of the rotary cylinder (21).

6. The injection molding part sprue shearing device according to claim 5, characterized in that: The top of the trimming workbench (1) is provided with a conveyor belt (8), and the starting end of the conveyor belt (8) extends into the area below the platform (3).

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