Precise injection-molded part collecting device with buffering protection function

By combining the design of the buffer mechanism and the conveyor belt, the problems of material jamming and accumulation in the injection molded parts collection device are solved, and the stable conveying and protection of precision injection molded parts are achieved.

CN224028222UActive Publication Date: 2026-03-24WUXI SENJUN PRECISION INJECTION MOLDING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing injection molded part collection devices are prone to problems such as material jamming and accumulation, especially in providing insufficient protection for precision injection molded parts.

Method used

The design incorporates a combination of a buffer mechanism and a conveyor belt, including a flared hopper, first and second receiving plates, and a conveyor belt. The buffer mechanism reduces the falling speed of the injection molded parts, while the conveyor belt transports the materials at a uniform speed, preventing jamming and accumulation.

Benefits of technology

It effectively avoids jamming and accumulation of injection molded parts, ensures the output quality of precision injection molded parts, and protects the injection molded parts with a fleece layer to prevent wear.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a precise injection molding part collecting device with a buffering protection function, and belongs to the field of collecting devices. The collecting device comprises a support, a box body fixedly installed on the support, a conveying belt fixedly installed in the box body, a buffering mechanism which is fixedly installed on the box body, corresponds to the output end of the conveying belt and is used for bearing materials, and a material containing disc movably installed on the support. The conveying belt extends from the end away from the opening of the box body to the end close to the opening of the box body, the ground clearance of the conveying belt is gradually reduced from the end away from the opening of the box body to the end close to the opening of the box body, and the lower end of the conveying belt is arranged above the containing disc. According to the collecting device, the falling speed of injection molding parts can be reduced, materials are conveyed at a constant speed through the conveying belt, material accumulation is avoided, the reverse impact force on the injection molding parts when the material containing disc receives the injection molding parts is reduced, and compared with existing roller conveying equipment, the situations of blockage and accumulation of the injection molding parts can be effectively avoided; and therefore, the discharging quality of the precise injection-molded part is ensured.
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Description

TECHNICAL FIELD

[0001] The application relates to the technical field of collecting devices, and particularly relates to a precise injection molding part collecting device with buffering protection. BACKGROUND

[0002] Injection molding, also known as injection molding, is a molding method of injection and molding. It is a method for obtaining a molded product by injecting a completely melted plastic material at a certain temperature into a mold cavity by a screw, and then solidifying after cooling. During the injection molding operation, the injection molded product formed after preliminary cooling will be ejected from the mold and fall from the gap opened by the mold. At this time, the falling injection molded part needs to be collected.

[0003] A kind of injection molded part collecting device is disclosed in Chinese utility model patent with publication number CN222022085U. Several rollers are arranged in the inclined frame body to guide the falling injection molded part, so that the injection molded part rolls into the collecting box. Rubber pads are arranged on the rollers to buffer and protect the injection molded part, achieving the effect of protecting the injection molded part. However, in actual use, there are recesses between adjacent rollers, which can easily cause the injection molded part to be stuck when the injection molded part is precise and small. In addition, the rollers have no power and slide down the slope by gravity, which can easily cause material accumulation, and there are some deficiencies.

[0004] Therefore, the application provides a precise injection molded part collecting device with buffering protection to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] The application provides a precise injection molded part collecting device with buffering protection, which aims to solve the problem of easy material sticking of the existing injection molded part collecting device.

[0006] To achieve the above purpose, the application provides the following technical solution: a precise injection molded part collecting device with buffering protection, comprising a support, a box body fixedly installed on the support, a conveying belt fixedly installed in the box body, a buffering mechanism fixedly installed on the box body corresponding to the output end of the conveying belt for receiving materials, and a material containing tray movably installed on the support.

[0007] One side of the box body is provided in an open manner;

[0008] The conveying belt is arranged to extend from the end away from the opening of the box body to the end close to the opening of the box body. The ground clearance of the conveying belt gradually decreases from the end away from the opening of the box body to the end close to the opening of the box body. The lower end of the conveying belt is arranged above the material containing tray.

[0009] The buffer mechanism comprises a material receiving hopper arranged in a trumpet shape, a first material receiving plate fixedly installed in the material receiving hopper, and a second material receiving plate fixedly installed below the first material receiving plate and extending in a direction opposite to the first material receiving plate.

[0010] The second material receiving plate extends towards the running direction of the conveying belt, and the first material receiving plate extends towards the second material receiving plate.

[0011] The ground clearance of the first material receiving plate gradually decreases from the end close to the material receiving hopper to the end close to the second material receiving plate, and the ground clearance of the second material receiving plate gradually decreases from the end close to the material receiving hopper to the end close to the conveying belt. In use, the support is moved to the discharge port of the extruder, so that the material receiving hopper is located directly below the discharge port of the extruder, and the first material receiving plate faces the discharge port of the extruder. After the injection molded part is extruded and cooled, it directly falls onto the first material receiving plate in the material receiving hopper, then slides down the slope of the first material receiving plate, falls onto the second material receiving plate, then slides down the slope of the second material receiving plate, and finally falls onto the conveying belt. The conveying belt continuously conveys the material by rotating, so that the material is evenly received in the material receiving tray, and the collection is completed. The continuous material receiving by the first material receiving plate and the second material receiving plate reduces the falling speed of the injection molded part, and the uniform conveying of the material by the conveying belt avoids material accumulation and reduces the impact force of the material receiving tray on the injection molded part when receiving the injection molded part. Compared with the existing drum conveying equipment, the injection molded part can be effectively prevented from being jammed and accumulated, thereby ensuring the discharge quality of the precision injection molded part.

[0012] Preferably, in order to buffer, the end of the first material receiving plate is fixedly connected with the material receiving hopper, and the side of the first material receiving plate is not fixed with the two opposite inner side walls of the material receiving hopper, so that it will be inclined and pressed downward under the action of gravity, thereby further buffering.

[0013] Preferably, in order to further buffer, a horizontal plate is fixedly installed in the material receiving hopper at a position between the first material receiving plate and the second material receiving plate, a plurality of springs arranged in a linear array are fixedly installed on the horizontal plate, and the ends of the springs away from the horizontal plate are arranged in abutment with the first material receiving plate. The springs support the first material receiving plate by elastic force, thereby better buffering.

[0014] Preferably, in order to protect the injection molded part, a layer of flannelette is attached to the surfaces of the first material receiving plate and the second material receiving plate, so as to avoid wear between the injection molded part and the first material receiving plate and the second material receiving plate, and protect the injection molded part.

[0015] Preferably, in order to facilitate the arrangement of materials, the collecting device further comprises a uniform material collecting mechanism, the uniform material collecting mechanism comprises a servo motor fixedly installed on the support, a reciprocating screw rod is fixedly installed on the output end of the servo motor, the reciprocating screw rod is rotatably connected with the support, a sliding block is sleeved on the reciprocating screw rod, a supporting table is fixedly installed on the sliding block, a supporting cavity matched with the material containing disc is formed in the supporting table, and the material containing disc is inserted into the supporting cavity, so that the injection molded parts are prevented from being accumulated at a certain position in the material containing disc, and the injection molded parts are prevented from being damaged due to extrusion, and the arrangement is facilitated.

[0016] Preferably, in order to receive materials, two symmetrically arranged guide blocks are fixedly installed on the conveying belt near one end of the material containing disc, the distance between the two guide blocks gradually decreases from one end away from the end of the conveying belt to one end close to the end of the conveying belt, so that the injection molded parts can stably fall into the material containing disc, and the materials are prevented from spilling out.

[0017] The collecting device moves the support to the discharge port of the extruder, so that the receiving hopper is located directly below the discharge port of the extruder, and the first receiving plate faces the discharge port of the extruder. After the injection molded parts are extruded and cooled, the injection molded parts directly fall above the first receiving plate in the receiving hopper, then slide down along the slope surface of the first receiving plate, fall onto the second receiving plate, then slide down along the slope surface of the second receiving plate, and then fall onto the conveying belt. The conveying belt conveys the materials by continuous rotation to make the materials uniformly fall into the material containing disc, so that the collecting is completed. The whole process is realized by continuous receiving of the first receiving plate and the second receiving plate, the falling speed of the injection molded parts is reduced, the materials are uniformly conveyed by the conveying belt, the materials are prevented from being accumulated, the back impact force of the material containing disc on the injection molded parts when receiving the injection molded parts is reduced, compared with the existing drum conveying equipment, the injection molded parts are prevented from being jammed and accumulated, so that the discharging quality of the precision injection molded parts is ensured.

[0018] The collecting device puts the material containing disc into the supporting cavity, starts the servo motor, drives the reciprocating screw rod to rotate, drives the sliding block to slide back and forth on the reciprocating screw rod, drives the supporting table to slide back and forth on the support, so that the material containing disc in the supporting cavity moves axially and reciprocally below the discharge port of the conveying belt, and the falling injection molded parts are uniformly scattered into the material containing disc, so that the injection molded parts are prevented from being accumulated at a certain position in the material containing disc, and the injection molded parts are prevented from being damaged due to extrusion, and the arrangement is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front structure schematic view of a precision injection molded part collecting device with buffer protection.

[0020] Figure 2 It is a back structure schematic view of a precision injection molded part collecting device with buffer protection.

[0021] Figure 3 Figure 1 is a schematic view of a bottom structure of a precision injection molded part collecting device with buffer protection;

[0022] Figure 4 Figure 2 is a schematic view of a side cross-sectional structure of a precision injection molded part collecting device with buffer protection;

[0023] Figure 5 Figure 3 is a schematic view of a front view structure of a precision injection molded part collecting device with buffer protection;

[0024] Figure 6 Figure 4 is a schematic view of a top view structure of a precision injection molded part collecting device with buffer protection;

[0025] Figure 7 Figure 5 is an enlarged view of area A in Figure 1. Figure 4

[0026] Figure 6 is a schematic view of a precision injection molded part collecting device with buffer protection.

[0027] 1, support; 2, box; 3, conveying belt; 4, buffer mechanism; 41, receiving hopper; 42, first receiving plate; 43, second receiving plate; 44, cross plate; 45, spring; 46, velvet layer; 5, material holding tray; 6, uniform material collecting mechanism; 61, servo motor; 62, reciprocating screw; 63, sliding block; 64, support table; 65, support cavity; 66, guide block. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] Embodiment 1

[0030] The present embodiment provides a precision injection molded part collecting device with buffer protection, as shown in Figure 1, the collecting device comprises a support 1, a box 2 fixedly installed on the support 1, a conveying belt 3 fixedly installed in the box 2, a buffer mechanism 4 fixedly installed on the box 2 and corresponding to the output end of the conveying belt 3 for receiving materials, and a material holding tray 5 movably installed on the support 1. Figures 1-7

[0031] One side of the box 2 is provided in an open manner;

[0032] The conveying belt 3 is extended from the end away from the opening of the box 2 to the end close to the opening of the box 2, and the ground clearance of the conveying belt 3 gradually decreases from the end away from the opening of the box 2 to the end close to the opening of the box 2, and the lower end of the conveying belt 3 is arranged above the material holding tray 5.​​

[0033] The buffering mechanism 4 comprises a material receiving hopper 41 arranged in a trumpet shape, a first material receiving plate 42 is fixedly installed in the material receiving hopper 41, and a second material receiving plate 43 extending in a direction opposite to the first material receiving plate 42 is fixedly installed below the first material receiving plate 42 in the material receiving hopper 41;

[0034] The second material receiving plate 43 is arranged extending towards the running direction of the conveying belt 3, and the first material receiving plate 42 is arranged extending towards the second material receiving plate 43.

[0035] The ground clearance of the first material receiving plate 42 gradually decreases from the end close to the material receiving hopper 41 towards the end close to the second material receiving plate 43, and the ground clearance of the second material receiving plate 43 gradually decreases from the end close to the material receiving hopper 41 towards the end close to the conveying belt 3.

[0036] In use, the support 1 is moved to the discharge opening of the extruder, so that the material receiving hopper 41 is located directly below the discharge opening of the extruder, and the first material receiving plate 42 faces the discharge opening of the extruder. After the injection molded part is formed by extrusion and cooling, it directly falls onto the first material receiving plate 42 in the material receiving hopper 41, then slides down the slope of the first material receiving plate 42, falls onto the second material receiving plate 43, then slides down the slope of the second material receiving plate 43, and finally falls onto the conveying belt 3. The conveying belt 3 continuously conveys the material by rotating, so that the material is evenly received into the material receiving tray 5, completing the collection. The entire process continuously receives the material by the first material receiving plate 42 and the second material receiving plate 43, reduces the falling speed of the injection molded part, and uniformly conveys the material by the conveying belt 3, avoiding material accumulation and reducing the impact force of the material receiving tray 5 on the injection molded part when receiving the injection molded part. Compared with the existing roller conveying equipment, the injection molded part can effectively avoid jamming and accumulation, thereby ensuring the discharge quality of the precision injection molded part.

[0037] Specifically, the end of the first material receiving plate 42 is fixedly connected with the material receiving hopper 41, and the side edge of the first material receiving plate 42 is not fixed with the two opposite sides of the inner side wall of the material receiving hopper 41.

[0038] In use, the side edge of the first material receiving plate 42 does not directly contact the material receiving hopper 41, so that the first material receiving plate 42 is inclined and pressed downward by gravity when receiving the falling injection molded part, thereby further buffering the impact.

[0039] More specifically, a horizontal plate 44 is fixedly installed in the material receiving hopper 41 at a position between the first material receiving plate 42 and the second material receiving plate 43, a plurality of springs 45 arranged in a linear array are fixedly installed on the horizontal plate 44, and the ends of the springs 45 away from the horizontal plate 44 are arranged in abutment with the first material receiving plate 42.

[0040] When the injection molding part is received, the first receiving plate 42 is pressed downward by gravity when the injection molding part falls on the first receiving plate 42, and the first receiving plate 42 pressed downward will press the spring 45, and the spring 45 supports the first receiving plate 42 by elastic force, thereby playing a better buffering role.

[0041] Further, the first receiving plate 42 and the second receiving plate 43 are both bonded with a flannel layer 46 covering the surface.

[0042] In use, the flannel layer 46 is wrapped on the first receiving plate 42 and the second receiving plate 43 to isolate the falling injection molding part from the first receiving plate 42 and the second receiving plate 43, thereby reducing friction and avoiding wear between the injection molding part and the first receiving plate 42 and the second receiving plate 43, and protecting the injection molding part.

[0043] It should be noted that the flannel layer 46 is made of a non-moist textile material, which is smoother than a rubber pad, facilitating the rolling of the injection molding part.

[0044] Embodiment 2

[0045] Different from embodiment 1, the existing fixed material holding tray 5 will cause the injection molding part to accumulate at a fixed point in the material holding tray 5 when receiving the injection molding part, causing extrusion and being inconvenient to arrange and collect. Therefore, the collecting device further comprises a uniform material collecting mechanism 6, and the uniform material collecting mechanism 6 comprises a servo motor 61 fixedly installed on the support 1, a reciprocating screw rod 62 fixedly installed on the output end of the servo motor 61, the reciprocating screw rod 62 being tubularly supported on the support 1 and being rotatably connected with the support 1, a sliding block 63 being sleeved on the reciprocating screw rod 62, a supporting table 64 being fixedly installed on the sliding block 63, a supporting cavity 65 being formed in the supporting table 64 and being matched with the material holding tray 5, and the material holding tray 5 being inserted into the supporting cavity 65.

[0046] In use, the material holding tray 5 is placed in the supporting cavity 65, the servo motor 61 is started, the servo motor 61 drives the reciprocating screw rod 62 to rotate, the reciprocating screw rod 62 drives the sliding block 63 to slide back and forth on the reciprocating screw rod 62, thereby driving the supporting table 64 to slide back and forth on the support 1, so that the material holding tray 5 in the supporting cavity 65 moves axially and reciprocally below the discharge port of the conveying belt 3, and the falling injection molding part is uniformly scattered into the material holding tray 5, avoiding the injection molding part from accumulating at a certain position in the material holding tray 5, thereby avoiding extrusion and damage to the injection molding part, and facilitating arrangement.

[0047] It should be noted that the length of the helical line on the reciprocating screw rod 62 does not need to extend to the end of the reciprocating screw rod 62, and the total length only needs to be the length of the travel of the top of the material holding tray 5 moving back and forth below the discharge port of the conveying belt 3, thereby avoiding the problem of material spilling when the material holding tray 5 is separated from the discharge port of the conveying belt 3.

[0048] Specifically, two symmetrical guide blocks 66 are fixedly installed on the conveying belt 3 near one end of the material holding tray 5. The distance between the two guide blocks 66 gradually decreases from one end away from the end of the conveying belt 3 to one end close to the end of the conveying belt 3.

[0049] In use, when the conveying belt 3 is conveying materials, the materials reach the discharge port of the conveying belt 3 and are tightened in width by the two guide blocks 66, so as to ensure that the injection molded parts can stably fall into the material holding tray 5 and avoid spilling.

[0050] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes according to the technical solution and concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A precision injection molded part collection device with buffer protection, comprising a bracket (1), a box (2) fixedly mounted on the bracket (1), a conveyor belt (3) fixedly mounted inside the box (2), a buffer mechanism (4) fixedly mounted on the box (2) and correspondingly disposed at the output end of the conveyor belt (3) for receiving materials, and a material holding tray (5) movably mounted on the bracket (1), characterized in that: One side of the box (2) is open; The conveyor belt (3) extends from the end away from the opening of the box (2) to the end close to the opening of the box (2). The height of the conveyor belt (3) from the ground gradually decreases from the end away from the opening of the box (2) to the end close to the opening of the box (2). The lower end of the conveyor belt (3) is positioned above the material tray (5). The buffer mechanism (4) includes a receiving hopper (41) arranged in the shape of a trumpet, a first receiving plate (42) is fixedly installed inside the receiving hopper (41), and a second receiving plate (43) is fixedly installed below the first receiving plate (42) inside the receiving hopper (41) with the opposite extension direction to the first receiving plate (42). The second receiving plate (43) extends toward the direction of travel of the conveyor belt (3), and the first receiving plate (42) extends toward the second receiving plate (43); The height of the first receiving plate (42) from the ground gradually decreases from the end near the receiving hopper (41) toward the end near the second receiving plate (43), and the height of the second receiving plate (43) from the ground gradually decreases from the end near the receiving hopper (41) toward the end near the conveyor belt (3).

2. The precision injection molded part collection device with buffer protection according to claim 1, characterized in that: The end of the first receiving plate (42) is fixedly connected to the receiving hopper (41), and the side of the first receiving plate (42) is not fixed to the two opposite surfaces of the inner sidewall of the receiving hopper (41).

3. The precision injection molded part collection device with buffer protection according to claim 1, characterized in that: A horizontal plate (44) is fixedly installed in the receiving hopper (41) between the first receiving plate (42) and the second receiving plate (43). A number of springs (45) arranged in a linear array are fixedly installed on the horizontal plate (44). One end of the spring (45) away from the horizontal plate (44) is abutted against the first receiving plate (42).

4. A precision injection molded part collection device with buffer protection according to claim 1, characterized in that: Both the first receiving plate (42) and the second receiving plate (43) have a layer of velvet cloth (46) covering their surfaces.

5. A precision injection molded part collection device with buffer protection according to claim 1, characterized in that: The collecting device also includes a uniform material collection mechanism (6), which includes a servo motor (61) fixedly mounted on a bracket (1). A reciprocating screw (62) is fixedly mounted on the output end of the servo motor (61). The reciprocating screw (62) is connected to the bracket (1) and rotates to be connected to the bracket (1). A slider (63) is sleeved on the reciprocating screw (62). A support platform (64) is fixedly mounted on the slider (63). A support cavity (65) adapted to the material tray (5) is opened on the support platform (64). The material tray (5) is inserted into the support cavity (65).

6. A precision injection molded part collection device with buffer protection according to claim 5, characterized in that: Two symmetrically arranged guide blocks (66) are fixedly installed on the conveyor belt (3) near the end of the material tray (5). The distance between the two guide blocks (66) gradually decreases from the end away from the end of the conveyor belt (3) to the end near the end of the conveyor belt (3).

Citation Information

Patent Citations

  • Injection molding part collecting device

    CN222022085U