Automatic sprue shearing device for toy injection molding parts

CN224915262UActive Publication Date: 2026-10-30HEYUAN YUTONG PLASTIC PROD CO LTD
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Patent Information

Application Number
CN202522502384.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-25
Publication Date
2026-10-30
Estimated Expiration
2035-11-25

AI Technical Summary

Technical Problem

[0003]现有技术中,通常采用人工或半自动的方式进行水口剪切处理,这种方式不仅劳动强度大,且剪切过程的效率较低、容易导致剪切位置偏差、成品损伤或水口残留等质量问题;同时,水口切除后,一般是通过人工进行废料分离和产品回收,从而影响玩具注塑件的生产加工效率

Benefits of technology

[0018]本实用新型通过直线移动机构带动定位载座移动,实现玩具注塑件水口件的精准定位与输送,配合设于龙门架上的水口剪切机构对水口进行定点剪除,避免误伤成品;剪切完成后,废料夹取机构将水口件移送至废料收集盒,避免废料残留在工位上,接着定位载座继续前行使玩具注塑件成品滑入落料槽,实现自动收集;整体结构紧凑,可实现水口剪切与成品分离的有序进行,有效提高玩具注塑件水口切除的加工效率和质量。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of automatic water gap shearing devices of toy injection molding parts, including base, linear movement mechanism, positioning carrier, blanking groove, waste material clamping mechanism and water gap shearing mechanism, the linear movement mechanism is used to drive the positioning carrier moves along linear direction, positioning groove is equipped on the positioning carrier, positioning groove is used to fix the water gap piece of toy injection molding part, linear movement mechanism both sides are equipped with support table, support table is used to support and place toy injection molding part finished product, blanking groove is equipped in support table end, gantry is equipped above base, water gap shearing mechanism and waste material clamping mechanism are respectively equipped in gantry both sides.The utility model is in cooperation with the linear movement mechanism, water gap shearing mechanism and waste material clamping mechanism, can realize the accurate cutting of toy injection molding part water gap piece, waste material efficient cleaning and finished product automatic blanking, overall structure is compact, it is smooth in operation, can effectively improve the processing efficiency of toy injection molding part water gap cutting and finished product quality.
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Description

Technical Field

[0001] This utility model relates to the field of sprue cutting devices, and in particular to an automatic sprue cutting device for toy injection molded parts. Background Technology

[0002] In the toy manufacturing industry, injection molding is one of the main processes for achieving high efficiency and mass production. During the molding process, injection molded parts usually form a connecting body between the product and the gate, which is often called a sprue or gate. This part is not part of the product after molding and needs to be removed in subsequent processes to improve the appearance quality and assembly accuracy of the product.

[0003] In existing technologies, sprue cutting is usually performed manually or semi-automatically. This method is not only labor-intensive, but also inefficient and prone to quality problems such as cutting position deviation, finished product damage, or sprue residue. In addition, after the sprue is cut off, waste separation and product recycling are usually done manually, which affects the production efficiency of toy injection molded parts.

[0004] Therefore, existing technologies have shortcomings and need to be improved. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an automatic sprue cutting device for toy injection molded parts that improves production efficiency and has a good shearing effect.

[0006] To achieve this objective, the present invention adopts the following technical solution: an automatic sprue cutting device for toy injection molded parts, comprising a base, a linear movement mechanism, a positioning carrier, a material drop trough, a waste material clamping mechanism, and a sprue cutting mechanism;

[0007] The linear moving mechanism is mounted on the base, and its movable end is connected to the positioning carrier. The linear moving mechanism is used to drive the positioning carrier to move in a straight line. The positioning carrier is provided with a positioning groove, which is used to fix the sprue of the toy injection molded part.

[0008] The linear motion mechanism is provided with support platforms on both sides. The support platforms are used to support and place finished toy injection molded parts. The material discharge chute is located at the end of the support platform and is used to receive finished toy injection molded parts that have been cut off by the sprue.

[0009] A gantry frame is provided above the machine base. The sprue cutting mechanism and the waste material clamping mechanism are respectively located on both sides of the gantry frame. A waste material collection box is provided on the side end of the machine base. The sprue cutting mechanism is used to cut off the sprue parts of the toy injection molded parts. The waste material clamping mechanism is used to clamp the cut sprue parts from the positioning groove into the waste material collection box.

[0010] Using the above technical solution, in the automatic sprue cutting device for toy injection molded parts, a proximity sensor is provided on the support platform, and the proximity sensor is used to detect whether the finished toy injection molded part is placed in place.

[0011] Using the above technical solution, in the automatic sprue cutting device for toy injection molded parts, the linear movement mechanism includes a drive motor, a transmission belt, a driving pulley, a driven pulley, a slide rail assembly, and a clamping block;

[0012] The driving pulley and the driven pulley are respectively located at both ends of the machine base. The output shaft of the drive motor is connected to the driving pulley to drive the driving pulley to rotate. The transmission belt is sleeved between the driving pulley and the driven pulley.

[0013] The drive belt is connected to the positioning carrier via the clamping block. The slide rail assembly is located inside the drive belt and is connected to the clamping block. The slide rail assembly is used to guide and support the positioning carrier to move in a straight line.

[0014] Using the above technical solution, in the automatic sprue cutting device for toy injection molded parts, the sprue cutting mechanism includes a first lateral moving component, a first lifting cylinder, and pneumatic shears. The first lateral moving component is located at the side end of the gantry frame, and its movable end is connected to the first lifting cylinder. The movable end of the first lifting cylinder is connected to the pneumatic shears. The pneumatic shears are used to cut the sprue parts of the toy injection molded parts fixed in the positioning groove.

[0015] Using the above technical solution, in the automatic sprue cutting device for toy injection molded parts, the waste material clamping mechanism includes a second lateral moving component, a mounting frame, a second lifting cylinder, and a clamping cylinder. The second lateral moving component is located on the side of the gantry frame, and its movable end is connected to the mounting frame. The second lifting cylinder is located on the mounting frame, and its movable end is connected to the clamping cylinder. The clamping cylinder is used to clamp and pick up the cut sprue part and transfer it to the waste material collection box.

[0016] The above-mentioned automatic sprue cutting device for toy injection molded parts, using the above technical solution, further includes a conveyor belt and a receiving cylinder. The conveyor belt is located below the material drop chute, and multiple receiving cylinders are located on the conveyor belt. The receiving cylinders are used to receive finished toy injection molded parts falling from the material drop chute.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention uses a linear motion mechanism to drive a positioning carrier, achieving precise positioning and conveying of sprue marks on toy injection molded parts. Combined with a sprue shearing mechanism mounted on a gantry, the sprue marks are precisely removed, preventing damage to the finished product. After shearing, a waste material clamping mechanism transfers the sprue mark to a waste collection box, preventing waste residue from remaining at the workstation. The positioning carrier then continues forward, allowing the finished toy injection molded part to slide into a discharge chute for automatic collection. The overall structure is compact, enabling orderly sprue shearing and finished product separation, effectively improving the processing efficiency and quality of sprue removal for toy injection molded parts. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the waste material gripping mechanism of this utility model;

[0023] Figure 3 This is a schematic diagram of the sprue shearing mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the linear motion mechanism of this utility model. Detailed Implementation

[0025] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0027] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] like Figures 1 to 4 As shown in the figure, this utility model embodiment provides an automatic sprue cutting device for toy injection molded parts, including a base 1, a linear moving mechanism 2, a positioning carrier 3, a material discharge chute 4, a waste material clamping mechanism 5, and a sprue cutting mechanism 6. The linear moving mechanism 2 is mounted on the base 1, and its movable end is connected to the positioning carrier 3. The linear moving mechanism 2 is used to drive the positioning carrier 3 to move in a linear direction. The positioning carrier 3 is provided with a positioning groove 30, which is used to fix the sprue part of the toy injection molded part. Support platforms 31 are provided on both sides of the linear moving mechanism 2. The support platform 31 is used to support and place finished toy injection molded parts. The material discharge trough 4 is located at the end of the support platform 31. The material discharge trough 4 is used to receive finished toy injection molded parts that have been cut off by the sprue. A gantry frame 10 is provided above the machine base 1. The sprue cutting mechanism 6 and the waste material clamping mechanism 5 are respectively located on both sides of the gantry frame 10. A waste material collection box 11 is provided on the side end of the machine base 1. The sprue cutting mechanism 6 is used to cut off the sprue parts of the toy injection molded parts. The waste material clamping mechanism 5 is used to clamp the cut sprue parts from the positioning groove 30 into the waste material collection box 11. Users can place the finished toy injection molded parts on the support platforms 31 on both sides of the machine base 1. The sprue part of the injection molded part falls into the positioning groove 30 on the positioning carrier 3, thus firmly fixing the sprue part. Then, the linear movement mechanism 2 is activated, driving the positioning carrier 3 to move along the set linear trajectory towards the shearing area, so that the sprue part accurately enters below the sprue shearing mechanism 6. The sprue shearing mechanism 6 can cut off the sprue part, avoiding accidental damage or residue to the finished product. After shearing, the waste material clamping mechanism 5 can clamp the detached sprue part and stably transfer it to the waste material collection box 11 set at the side of the machine base 1, realizing timely cleaning and centralized recycling of sprue waste. Finally, the positioning carrier 3 continues to move in the dropping direction, and the injection molded product after the sprue is cut off is brought to the end of the support platform 31 and automatically slides into the dropping groove 4, thus realizing the unloading and collection of the finished product.

[0029] like Figure 4 As shown, the support platform 31 is further equipped with a proximity sensor 32, which is used to detect whether the finished toy injection molded part is placed in the correct position. When the finished toy injection molded part is placed on the support platform 31, its sprue is positioned in the positioning groove 30. At this time, the proximity sensor 32 can sense that the injection molded part has been correctly placed. Subsequently, the linear movement mechanism 2 is activated, driving the positioning carrier 3 to move the workpiece to the next station for sprue shearing, thereby avoiding the risks of dry shearing and mis-shearing, and improving the accuracy and safety of equipment operation.

[0030] like Figure 3 and Figure 4 As shown, the linear motion mechanism 2 further includes a drive motor 21, a transmission belt 22, a drive pulley 23, a driven pulley 24, a slide rail assembly 25, and a clamping block 26. The drive pulley 23 and the driven pulley 24 are respectively located at both ends of the base 1. The output shaft of the drive motor 21 is connected to the drive pulley 23 to drive the drive pulley 23 to rotate. The transmission belt 22 is sleeved between the drive pulley 23 and the driven pulley 24. The transmission belt 22 is connected to the positioning carrier 3 through the clamping block 26. The slide rail assembly 25 is located inside the transmission belt 22 and is connected to the clamping block 26. The slide rail assembly 25 is used to guide and support the positioning carrier 3 to move in a linear direction. When the drive motor 21 starts, it can drive the drive pulley 23 to rotate through the output shaft. The drive pulley 23 is linked to the driven pulley 24 at the other end through the transmission belt 22 to form a closed-loop transmission mechanism. The transmission belt 22 moves synchronously in this process. The positioning carrier 3 is fixedly connected to the transmission belt 22 through the clamping block 26. Driven by the movement of the transmission belt 22, the positioning carrier 3 can move linearly in a predetermined direction.

[0031] like Figure 3 As shown, the sprue cutting mechanism 6 further includes a first lateral movement component 61, a first lifting cylinder 62, and a pneumatic shear 63. The first lateral movement component 61 is located on the side of the gantry 10, and its movable end is connected to the first lifting cylinder 62. The movable end of the first lifting cylinder 62 is connected to the pneumatic shear 63. The pneumatic shear 63 is used to cut the sprue of the toy injection molded part fixed in the positioning groove 30. When the positioning carrier 3 moves to the cutting station via the linear movement mechanism 2, the sprue is located directly below the sprue cutting mechanism 6. At this time, the first lateral movement component 61 is activated, moving the pneumatic shear 63 to a position aligned with the sprue. Subsequently, the first lifting cylinder 62 moves downward, causing the pneumatic shear 63 to descend vertically, aligning and approaching the sprue connection point. The pneumatic shear 63 then closes to complete the sprue removal operation.

[0032] like Figure 2 As shown, the waste clamping mechanism 5 further includes a second lateral moving component 51, a mounting frame 52, a second lifting cylinder 53, and a clamping cylinder 54. The second lateral moving component 51 is located on the side of the gantry frame 10, and its movable end is connected to the mounting frame 52. The second lifting cylinder 53 is located on the mounting frame 52, and its movable end is connected to the clamping cylinder 54. The clamping cylinder 54 is used to clamp and pick up the sheared sprue parts and transfer them to the waste collection box 11, thereby realizing the automatic cleaning and separation of waste.

[0033] like Figure 1 As shown, further, it also includes a conveyor belt 7 and receiving cylinders 8. The conveyor belt 7 is located below the discharge chute 4, and multiple receiving cylinders 8 are located on the conveyor belt 7. The receiving cylinders 8 are used to receive the finished toy injection molded parts falling from the discharge chute 4. After the positioning carrier 3 completes the sprue shearing and waste removal, it continues to move forward, and the finished injection molded parts slide into the discharge chute 4 at the end of the support platform 31 and fall naturally. At this time, they are caught by the receiving cylinders 8 located on the conveyor belt 7 below. Multiple receiving cylinders 8 are evenly spaced on the conveyor belt 7. With the continuous operation of the belt, the finished products can be received and transported in batches.

[0034] Components not described in detail in this article are existing technologies and will not be elaborated upon here.

[0035] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model 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 utility model.

Claims

1. An automatic sprue trimming device for injection-molded toy parts, characterized in that, It includes a base, a linear motion mechanism, a positioning carrier, a material discharge chute, a waste material clamping mechanism, and a sprue shearing mechanism; The linear moving mechanism is mounted on the base, and its movable end is connected to the positioning carrier. The linear moving mechanism is used to drive the positioning carrier to move in a straight line. The positioning carrier is provided with a positioning groove, which is used to fix the sprue of the toy injection molded part. The linear motion mechanism is provided with support platforms on both sides. The support platforms are used to support and place finished toy injection molded parts. The material discharge chute is located at the end of the support platform and is used to receive finished toy injection molded parts that have been cut off by the sprue. A gantry frame is provided above the machine base. The sprue cutting mechanism and the waste material clamping mechanism are respectively located on both sides of the gantry frame. A waste material collection box is provided on the side end of the machine base. The sprue cutting mechanism is used to cut off the sprue parts of the toy injection molded parts. The waste material clamping mechanism is used to clamp the cut sprue parts from the positioning groove into the waste material collection box.

2. The automatic sprue cutting device for toy injection molded parts according to claim 1, characterized in that, The support platform is equipped with a proximity sensor, which is used to detect whether the finished toy injection molded part is placed in the correct position.

3. The automatic sprue cutting device for toy injection molded parts according to claim 1, characterized in that, The linear motion mechanism includes a drive motor, a transmission belt, a driving pulley, a driven pulley, a slide rail assembly, and a clamping block; The driving pulley and the driven pulley are respectively located at both ends of the machine base. The output shaft of the drive motor is connected to the driving pulley to drive the driving pulley to rotate. The transmission belt is sleeved between the driving pulley and the driven pulley. The drive belt is connected to the positioning carrier via the clamping block. The slide rail assembly is located inside the drive belt and is connected to the clamping block. The slide rail assembly is used to guide and support the positioning carrier to move in a straight line.

4. The automatic sprue cutting device for toy injection molded parts according to claim 1, characterized in that, The sprue cutting mechanism includes a first lateral moving component, a first lifting cylinder, and pneumatic shears. The first lateral moving component is located at the side end of the gantry frame, and its movable end is connected to the first lifting cylinder. The movable end of the first lifting cylinder is connected to the pneumatic shears. The pneumatic shears are used to cut the sprue parts of the toy injection molded parts fixed in the positioning groove.

5. The automatic sprue cutting device for toy injection molded parts according to claim 1, characterized in that, The waste material clamping mechanism includes a second lateral moving component, a mounting frame, a second lifting cylinder, and a clamping cylinder. The second lateral moving component is located on the side of the gantry frame, and its movable end is connected to the mounting frame. The second lifting cylinder is located on the mounting frame, and its movable end is connected to the clamping cylinder. The clamping cylinder is used to clamp and pick up the sheared sprue parts and transfer them to the waste material collection box.

6. The automatic sprue cutting device for toy injection molded parts according to claim 1, characterized in that, It also includes a conveyor belt and receiving cylinders. The conveyor belt is located below the material drop chute, and multiple receiving cylinders are located on the conveyor belt. The receiving cylinders are used to receive finished toy injection molded parts falling from the material drop chute.