Full-automatic cutting device for injection molding part

By designing a fully automatic cutting device for injection molded parts, and utilizing structures such as guide rails, guide blocks, and bushings to improve positioning accuracy and cutting stability, the problem of low efficiency and poor stability in gate removal of injection molded parts in existing technologies has been solved, achieving efficient mass production and high yield.

CN223456412UActive Publication Date: 2025-10-21SUZHOU BENTENG PLASTIC
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Patent Information

Application Number
CN202422634226.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-30
Publication Date
2025-10-21
Estimated Expiration
2034-10-30

AI Technical Summary

Technical Problem

The existing gate removal process for injection molded parts is inefficient and costly, and traditional equipment has a complex structure and poor stability, making it difficult to achieve mass production.

Method used

Design a fully automatic cutting device for injection molded parts, including a positioning component, a cutting block and a pushing component. Utilize structures such as guide rails, guide blocks and bushings to improve positioning accuracy and cutting stability, ensuring precise movement of the cutter.

Benefits of technology

It achieves efficient and stable batch cutting, improves cutting accuracy and yield, and reduces maintenance difficulty and production costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223456412U_ABST
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Abstract

The utility model discloses a full-automatic cutting device for an injection molding part, which comprises a rack, a positioning component for positioning the injection molding part is arranged on the rack, and the positioning component can be driven by a driving component to horizontally slide on the rack; a positioning assembly is arranged on the rack, a cutting block is arranged above the positioning assembly, a group of cutters are fixedly arranged on the cutting block, the cutters are positioned right above a pouring gate of the injection molding part and are in one-to-one correspondence with the pouring gate, a pushing assembly is further arranged on the rack, and the pushing assembly can drive the cutting block to move up and down. The device has the main beneficial effects that the design is exquisite, the layout is reasonable, the device realizes high integration, the occupied space is reduced, the reasonable layout is convenient, in addition, the device is compact in structure, high in stability and convenient to disassemble, replace and maintain, batch cutting can be realized, the working efficiency is greatly improved, and the device has wider applicability.
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Description

TECHNICAL FIELD

[0001] The utility model relates to automatic cutting technical field, specifically, especially, it relates to a full -automatic cutting device of injection molding part. BACKGROUND

[0002] After plastic injection molding part injection molding, the sprue (also known as the sprue mouth) is usually left on the injection molding part, and the residual sprue can affect the quality of the injection molding part, so it is necessary to remove the sprue through the sprue removal process. According to the structure of the injection molding part itself, the sprue of the injection molding part is often arranged at a relatively complex position such as rib, which causes the problem that the traditional shearing device or tool such as art knife, diagonal forceps and nail knife cannot be inserted into the root of the sprue.

[0003] The existing sprue removal process is realized by manual work, specifically, the worker removes the sprue by shearing or chipping with cutting tools such as knife and forceps. This sprue removal method is low in efficiency and high in cost.

[0004] As disclosed in the authorized announcement No. CN 208148414 U, an injection molding part sprue cutting device includes a cutting knife, a cutting knife driving mechanism and a cutting knife position adjusting mechanism. The cutting knife driving mechanism includes a cutting knife fixed sliding block, a driving mechanism base and a cutting knife driving unit, the cutting knife is installed on the cutting knife fixed sliding block, the cutting knife fixed sliding block is in sliding cooperation with the driving mechanism base, and the cutting knife driving unit is installed on the driving mechanism base. The cutting knife position adjusting mechanism includes a first connecting sliding block, a support and a first connecting sliding block position adjusting piece, the first connecting sliding block is in sliding cooperation with the support, and the first connecting sliding block is connected with the driving mechanism base. Although the device realizes automatic cutting of the sprue, the device has complex structure, poor stability, is inconvenient to disassemble, replace and maintain, can only cut the injection molding part one by one, is not conducive to batch production, and has great limitations. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the deficiencies in the prior art and provides a full -automatic cutting device for injection molding part.

[0006] The utility model achieves the purpose by the following technical scheme:

[0007] A full -automatic cutting device for injection molding part, including the frame, be used to position injection molding part with the positioning assembly that is equipped on the frame, the positioning assembly can be driven by the drive assembly and its horizontal sliding on the frame, the positioning assembly's top is equipped with the cutting block, a group of cutting knives are fixed on the cutting block, the cutting knife is located the sprue of the injection molding part directly above, and with it one to one correspondence, the frame is equipped with push assembly still, the push assembly can drive the cutting block moves up and down.

[0008] Preferably, the positioning assembly comprises at least a positioning block, the positioning block is provided with positioning grooves matched with the injection molded parts, the length of the positioning grooves is equal to the length of the injection molded parts, the width of the positioning grooves is equal to the width of the injection molded parts, and a gate groove is arranged between adjacent positioning grooves to accommodate the gate on the injection molded parts.

[0009] Preferably, the driving assembly comprises at least a guide rail fixed on the rack, the guide rail is provided with guide blocks matched with the guide rail, and the positioning block is fixed on the guide blocks.

[0010] Preferably, a positioning cylinder is further fixed on the rack, a connecting block is fixed on the cylinder shaft of the positioning cylinder, and the other end of the connecting block is fixed on the positioning block.

[0011] Preferably, a limiting block is further arranged on the rack, the limiting block is arranged on both sides of the positioning block, a buffer head is fixed on the limiting block, and the buffer head can abut against the positioning block.

[0012] Preferably, the pushing assembly comprises at least a pushing frame fixed on the rack, a pushing cylinder is fixed on the pushing frame, and the cutting block is fixed on the cylinder shaft of the pushing cylinder.

[0013] Preferably, the pushing frame comprises at least a column fixed on the rack, a vertical plate is fixed on the top end of the column, the pushing cylinder is fixed on the vertical plate, a fixing block is fixed on the cylinder shaft of the pushing cylinder, a fixing plate is fixed on the fixing block, the cutting block is fixed on the fixing plate, and a shaft sleeve is arranged around the fixing plate, the shaft sleeve is sleeved on the column, and the shaft sleeve and the column are matched.

[0014] The beneficial effects of the utility model mainly include:

[0015] 1. The device is compact in structure, high in stability, convenient to disassemble, replace and maintain, can cut in batches, greatly improves work efficiency, and has wide applicability.

[0016] 2. The shaft sleeve and the column are matched to avoid the cutting knife from moving or shaking during downward movement, ensure the cutting accuracy, and maximize the yield.

[0017] 3. The positioning grooves can accurately position the injection molded parts, avoid the injection molded parts from moving or shaking during cutting, improve the stability, and improve the cutting accuracy.

[0018] 4. The guide rail and the guide block are matched to improve the stability of the positioning block during movement, avoid displacement or shaking, and further improve the cutting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The technical solution of the utility model is further described below with reference to the accompanying drawings:

[0020] Fig. 1 : A three-dimensional diagram of a preferred embodiment of the utility model in the first direction;

[0021] Fig. 2 : A three-dimensional diagram of the positioning assembly in a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0022] The present invention will be described in detail below with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional modifications made by a person skilled in the art based on these embodiments are included within the scope of protection of the present invention.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0025] like Figs. 1-2 As shown, the utility model discloses a fully automatic cutting device for injection molded parts, including a frame 1, on which a positioning component 2 for positioning the injection molded part 100 is provided. The positioning component 2 includes at least a positioning block 21, and the positioning block 21 is provided with a positioning groove 22 adapted to the injection molded part 100. The length of the positioning groove 22 is equal to the length of the injection molded part 100, and the width of the positioning groove 22 is equal to the width of the injection molded part 100. The positioning groove 22 can accurately position the injection molded part 100 to avoid shaking or moving of the injection molded part during cutting, thereby improving stability and also improving cutting accuracy.

[0026] In addition, in this preferred embodiment, a gate groove 23 for accommodating the gate on the injection molded part 100 is provided between adjacent positioning grooves 22. The gate groove 23 can accurately position the gate on the injection molded part 100 to ensure the accuracy of the cutting position.

[0027] The positioning assembly 2 can be driven by a driving assembly 3 to slide horizontally on the rack 1, the driving assembly 3 at least comprising a guide rail 31 fixed on the rack 1, the guide rail 31 being provided with a guide block 32 matched therewith, and the positioning block 21 being fixed on the guide block 32. The rack 1 is further provided with a positioning cylinder 33, a connecting block 34 being fixed on the cylinder shaft of the positioning cylinder 33, and the other end of the connecting block 34 being fixed on the positioning block 21. In the above, the guide rail 31 and the guide block 32 cooperate with each other to improve the stability of the positioning block 21 during movement, so as to avoid displacement or shaking and further improve the accuracy of subsequent cutting.

[0028] The rack 1 is further provided with a limiting block 35 located on both sides of the positioning block 21, and a buffer head 36 is fixed on the limiting block 35, and the buffer head 36 can abut against the positioning block 21.

[0029] The positioning assembly 2 is provided with a cutting block 6, a group of cutters 4 being fixed on the cutting block 6, the cutters 4 being located directly above the gates of the injection molded parts 100 and corresponding to the gates one by one, and the rack 1 is further provided with a pushing assembly 5, the pushing assembly 5 being capable of driving the cutting block 6 to move up and down. In the preferred embodiment, the pushing assembly 5 at least comprises a pushing frame 51 fixed on the rack 1, a pushing cylinder 52 being fixed on the pushing frame 51, and the cutting block 6 being fixed on the cylinder shaft of the pushing cylinder 52. The pushing frame 51 at least comprises a stand column 53 fixed on the rack 1, a stand plate 54 being fixed on the top end of the stand column 53, the pushing cylinder 52 being fixed on the stand plate 54, a fixing block 55 being fixed on the cylinder shaft of the pushing cylinder 52, a fixing plate 56 being fixed on the fixing block 55, and the cutting block 6 being fixed on the fixing plate 56. The fixing plate 56 is provided with a shaft sleeve 57 around the periphery thereof, the shaft sleeve 57 being sleeved on the stand column 53 and matched therewith. The shaft sleeve 57 and the stand column cooperate with each other to avoid the cutters 4 from moving downward with displacement or shaking, so as to ensure the accuracy of cutting and maximize the yield rate. Moreover, the injection molded parts 100 can be cut in batches, so as to greatly improve the work efficiency and have wide applicability.

[0030] It should be understood that although the present specification is described in terms of embodiments, each embodiment does not necessarily contain only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

[0031] The series of detailed descriptions listed above are only specific descriptions for the feasible implementation manners of the present application, and are not used to limit the protection scope of the present application. Any equivalent implementation manners or changes made without departing from the spirit of the present application should be included in the protection scope of the present application.

Claims

1. A full-automatic cutting device for injection molded parts, comprising a frame (1), characterized in that: The rack (1) is provided with a positioning assembly (2) for positioning the injection molding part (100), the positioning assembly (2) can be driven by a driving assembly (3) to slide horizontally on the rack (1); the upper side of the positioning assembly (2) is provided with a cutting block (6), a group of cutting knives (4) are fixed on the cutting block (6), the cutting knives (4) are located directly above the gates of the injection molding part (100) and correspond to the gates one by one, and the rack (1) is also provided with a pushing assembly (5), the pushing assembly (5) can drive the cutting block (6) to move up and down.

2. The full-automatic cutting device for injection molded parts according to claim 1, characterized in that: The positioning assembly (2) at least comprises a positioning block (21), the positioning block (21) is provided with a positioning groove (22) matched with the injection molding part (100), the length of the positioning groove (22) is equal to the length of the injection molding part (100), the width of the positioning groove (22) is equal to the width of the injection molding part (100), and a gate groove (23) for accommodating the gate on the injection molding part (100) is arranged between adjacent positioning grooves (22).

3. The full-automatic cutting device for injection molded parts according to claim 2, characterized in that: The driving assembly (3) at least comprises a guide rail (31) fixed on the rack (1), the guide rail (31) is provided with a guide block (32) matched with the guide rail (31), and the positioning block (21) is fixed on the guide block (32).

4. The full-automatic cutting device for injection molded parts according to claim 3, characterized in that: The rack (1) is also provided with a positioning cylinder (33), a connecting block (34) is fixed on the cylinder shaft of the positioning cylinder (33), and the other end of the connecting block (34) is fixed on the positioning block (21).

5. The full-automatic cutting device for injection molded parts according to claim 4, characterized in that: The rack (1) is also provided with a limiting block (35), the limiting block (35) is located on both sides of the positioning block (21) and is provided with a buffer head (36) fixed thereon, and the buffer head (36) can abut against the positioning block (21).

6. The full-automatic cutting device for injection molded parts according to claim 5, characterized in that: The pushing assembly (5) at least comprises a pushing frame (51) fixed on the rack (1), a pushing cylinder (52) is fixed on the pushing frame (51), and the cutting block (6) is fixed on the cylinder shaft of the pushing cylinder (52).

7. The full-automatic cutting device for injection molded parts according to claim 6, characterized in that: The pushing frame (51) at least comprises a stand column (53) fixed on the rack (1), a vertical plate (54) is fixed on the top end of the stand column (53), the pushing cylinder (52) is fixed on the vertical plate (54), a fixing block (55) is fixed on the cylinder shaft of the pushing cylinder (52), a fixing plate (56) is fixed on the fixing block (55), the cutting block (6) is fixed on the fixing plate (56), shaft sleeves (57) are formed around the fixing plate (56), the shaft sleeves (57) are sleeved on the stand column (53) and are matched with the stand column (53).

Citation Information

Patent Citations

  • Injection molding runner cutting device

    CN208148414U