Injection mold with side gate in-mold cutting and separating mechanism

Abstract

The utility model discloses an injection mold with a side gate in-mold cutting and separating mechanism, and relates to the technical field of injection molds. Comprising a lower die main body, a buffering effect is achieved when a first die cutter and a second die cutter conduct die cutting, a die and the cutters are protected against damage, the service life of the die and the cutters is prolonged, specifically, during die cutting work, the lower end of the second die cutter is separated from a side sprue, then the first die cutter continues to conduct downward die cutting separation, and the die cutting efficiency is improved. Double-cutter cutting separation is achieved, the die cutting efficiency is improved, it is ensured that the side gate is completely and cleanly cut off, the die cutting quality is improved, die cutting can be conducted at the upper end and the lower end of the second die cutter, when the second die cutter moves upwards, barbs generated when the side gate is cut downwards are cut off again through upward driving of the second die cutter, and the die cutting efficiency is improved. And barbs are reduced, flaws on the surface of the product are remarkably reduced, the overall appearance quality of the product is improved, and the product is smoother and neater.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely is injection mold of in -mold cutting separation mechanism of side gate. BACKGROUND

[0002] In the injection mold technical field, especially in the design of in-mold cutting separation mechanism of side gate, die cutting efficiency and die cutting quality have been the focus of the industry.

[0003] Reference patent (publication number: CN206796422U, publication date: 2017-12-26) discloses a kind of injection mold side gate structure, comprising: slider, the slider slidingly connected on fixed mould, the upper surface of the slider near the side gate forming part of side gate forming portion for forming side gate is equipped on one side;Inclined guide pillar, the inclined guide pillar is arranged on movable mould, to drive the slider to realize core-pulling;When opening, movable mould drives the inclined guide pillar to drive the slider to move outward, and the side gate forming part of the slider is separated from the side gate of product.Sidewell gate is arranged on slider, and slider is separated from side gate by inclined guide pillar core-pulling mechanism when opening, effectively improve the appearance of injection product, improve the pass rate.

[0004] Based on the above patent, in order to realize the accurate separation of product and high-quality production, it is often necessary to set cutting separation mechanism in the mold, however, when carrying out die cutting work, a single cutter is usually used for work, it is difficult to remove by one cutting, which affects the cutting efficiency, and it is easy to produce barb when cutting, which is not convenient for cleaning, at the same time, due to the lack of effective buffer mechanism, die cutter is easy to be impacted in cutting process, which leads to aggravation of wear, therefore, the utility model provides injection mold with in-mold cutting separation mechanism of side gate. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of prior art, the utility model provides injection mold with in-mold cutting separation mechanism of side gate, which solves the problem that a single cutter is usually used for work when carrying out die cutting work, it is difficult to remove by one cutting, which affects the cutting efficiency, and it is easy to produce barb when cutting, which is not convenient for cleaning, at the same time, due to the lack of effective buffer mechanism, die cutter is easy to be impacted in cutting process, which leads to aggravation of wear.

[0006] To achieve the above purpose, the utility model is realized by the following technical scheme: injection mold with in-mold cutting separation mechanism of side gate, comprising lower mold main body, the upper end face of the lower mold main body is attached with upper mold main body, the upper mold main body is provided with in-mold cutting separation mechanism of side gate, and the separation mechanism comprises:

[0007] The die-cutting assembly comprises a connecting plate arranged in the upper die body and connected through a lifting assembly, a first die-cutting knife arranged at the lower end of the connecting plate and connected through an elastic assembly, a connecting rod fixed to the outer wall of the first die-cutting knife, and a second die-cutting knife fixed to the lower end of the connecting rod.

[0008] The cleaning assembly comprises an arc-shaped groove arranged in the upper die body, and a cleaning assembly arranged in the arc-shaped groove for cleaning the die-cutting knife.

[0009] Preferably, the lifting assembly comprises an electric push rod fixed in the upper die body, the connecting plate is arranged at the telescopic end of the electric push rod, and the telescopic end of the electric push rod is fixedly connected with the connecting plate.

[0010] Preferably, the elastic assembly comprises a cavity groove arranged in the first die-cutting knife, a connecting block fixed to the lower end of the connecting plate, the lower end of the connecting block is in sliding connection with the inner wall of the cavity groove, shock-absorbing springs are uniformly fixed to the lower end surface of the connecting block, the first die-cutting knife is fixedly connected with the other end of the shock-absorbing springs, a damping support rod is arranged in the inner ring of the shock-absorbing springs, and the damping support rod is fixedly connected with the first die-cutting knife.

[0011] Preferably, the cleaning assembly comprises a motor fixed at one end of the arc-shaped groove, and a brush shaft fixed to the output end of the motor.

[0012] Preferably, a pair of hydraulic rods are fixed in the lower die body, the upper die body is fixedly connected with the telescopic end of the hydraulic rods, and side gates are arranged in the inner sides of the upper die body.

[0013] Preferably, a positioning rod is fixed to the lower end of the upper die body, a positioning groove is arranged in the lower die body and corresponds to the positioning rod, and the positioning rod is in sliding connection with the positioning groove.

[0014] Beneficial effects

[0015] The injection mold with a side gate in-mold cutting and separating mechanism has the following beneficial effects compared with the prior art.

[0016] The utility model discloses a first die cutting knife and second die cutting knife are separated, and then the first die cutting knife continues to cut down and separates, realizes double -edged cutting separation, improves die cutting efficiency, ensures that side gate place is completely, cleanly cut, improves die cutting quality, and the upper and lower ends of second die cutting knife can all carry out die cutting, when second die cutting knife moves upward, the barb produced when side gate is cut down is cut again through the upward drive of second die cutting knife, reduces the generation of barb, significantly reduces the flaw on the surface of product, improves the overall appearance quality of product, makes product more smooth, neat.

[0017] The utility model discloses a brush shaft is rotated through motor, when first die cutting knife and second die cutting knife are separated after cutting, and die cutting knife cutting part contacts brush shaft, thereby carries out the cleaning of die cutting knife, avoids the effect of separation because of impurity. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is whole structure schematic diagram of the utility model;

[0019] Figure 2 It is lower mould body and upper mould body cross section structure schematic diagram of the utility model;

[0020] Figure 3 It is upper mould body cross section connection structure schematic diagram of the utility model;

[0021] Figure 4 It is first die cutting knife internal connection structure schematic diagram of the utility model;

[0022] Figure 5 It is brush shaft connection structure schematic diagram of the utility model.

[0023] In the drawing: 1, lower mould body;2, upper mould body;201, side gate;3, hydraulic rod;301, positioning rod;302, positioning groove;4, electric push rod;401, first die cutting knife;402, cavity groove;403, shock absorber spring;404, damping support;405, connecting block;406, connecting plate;5, connecting rod;501, second die cutting knife;6, arc groove;601, motor;602, brush shaft. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described 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 of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0025] Please refer to Figures 1-5 The present application provides a technical scheme: an injection mold with a side-gate in-mold cutting and separating mechanism, comprising a lower mold body 1, an upper end surface of the lower mold body 1 being attached with an upper mold body 2, the upper mold body 2 being provided with a side-gate in-mold cutting and separating mechanism, the separating mechanism comprising:

[0026] The die cutting assembly comprises a connecting plate 406 provided inside the upper mold body 2 and connected through a lifting assembly, a first die cutting knife 401 provided at the lower end of the connecting plate 406 and connected through an elastic assembly, a connecting rod 5 fixed to the outer wall of the first die cutting knife 401, and a second die cutting knife 501 fixed to the lower end of the connecting rod 5.

[0027] The cleaning assembly comprises an arc groove 6 formed inside the upper mold body 2 and a cleaning assembly provided inside the arc groove 6 for cleaning the die cutting knife.

[0028] In the preferred implementation, the lifting assembly includes an electric push rod 4 fixed inside the upper die body 2, a connecting plate 406 is located at the telescopic end of the electric push rod 4, and the telescopic end of the electric push rod 4 is fixedly connected with the connecting plate 406, the elastic assembly includes a cavity groove 402 opened inside the first die cutter 401, the lower end of the connecting plate 406 is fixedly connected with a connecting block 405, the lower end of the connecting block 405 is in sliding connection with the inner wall of the cavity groove 402, the lower end surface of the connecting block 405 is uniformly fixed with a damping spring 403, the first die cutter 401 is fixedly connected at the other end of the damping spring 403, the inner ring of the damping spring 403 is provided with a damping support rod 404, and the damping support rod 404 is fixedly connected with the first die cutter 401. The first die cutter 401 and the second die cutter 501 can be lifted by the electric push rod 4, and the die cutting work is carried out at the opposite gate 201. When the first die cutter 401 and the second die cutter 501 are downwardly die cut, the electric push rod 4 drives the connecting plate 406 and the connecting block 405 to move downwardly, and the first die cutter 401 is subjected to the damping and buffering effect of the damping spring 403 and the damping support rod 404 on the connecting block 405, so that the first die cutter 401 and the second die cutter 501 are subjected to the buffering effect during die cutting, effectively absorbing the impact and vibration during die cutting, protecting the die and the cutter from being damaged, prolonging the service life of the die and the cutter, and specifically during the die cutting work, the lower end of the second die cutter 501 is separated from the side gate 201, and then the first die cutter 401 continues to downwardly die cut and separate, realizing double-knife cutting and separation, improving the die cutting efficiency, ensuring that the side gate 201 is completely and cleanly cut, improving the die cutting quality, and the upper and lower ends of the second die cutter 501 can be die cut. When the second die cutter 501 moves upwardly, the barbs generated when the side gate 201 is downwardly cut are driven upwardly by the second die cutter 501 to be cut again, reducing the generation of barbs, significantly reducing the defects on the surface of the product, improving the overall appearance quality of the product, and making the product more smooth and neat.

[0029] In the preferred implementation, the cleaning assembly includes a motor 601 fixed at one end of the circular arc groove 6, and a brush shaft 602 is fixedly connected with the output end of the motor 601. The brush shaft 602 is arranged to rotate by the motor 601. When the first die cutter 401 and the second die cutter 501 are separated after cutting, the cutting part of the die cutter is in contact with the brush shaft 602, so as to clean the die cutter and avoid affecting the cutting effect due to impurities.

[0030] In the preferred embodiment, the lower die body 1 is fixed with a pair of hydraulic rods 3, the upper die body 2 is fixedly connected to the telescopic end of the hydraulic rods 3, the upper die body 2 is provided with side gates 201 on both sides of the inside, the lower end of the upper die body 2 is fixed with a positioning rod 301, the inside of the lower die body 1 is provided with a positioning groove 302 corresponding to the positioning rod 301, the positioning rod 301 and the positioning groove 302 are in sliding connection, the upper die body 2 is set to be lifted and opened and closed by the hydraulic rods 3, and the upper die body 2 is clamped and positioned with the lower die body 1 by the positioning rod 301 and the positioning groove 302, to ensure the stability of the closure.

[0031] Meanwhile, the contents not described in detail in the specification are all prior art known to those skilled in the art.

[0032] In operation, the upper die body 2 is set to be lifted and opened and closed by the hydraulic rods 3, and the upper die body 2 is clamped and positioned with the lower die body 1 by the positioning rod 301 and the positioning groove 302, and then the side gates 201 are die cut, the first die cutter 401 and the second die cutter 501 are driven downward by the electric push rod 4, the first die cutter 401 is damped and buffered on the connecting block 405 by the damping spring 403 and the damping support rod 404, so that the first die cutter 401 and the second die cutter 501 are damped and buffered when die cutting, effectively absorbing the impact and vibration in the die cutting process, protecting the die and the cutter from damage, prolonging the service life of the die and the cutter, and specifically when die cutting, the second die cutter 501 is separated from the side gate 201, then the first die cutter 401 continues to cut downward to separate, realizing double-knife cutting separation, improving the die cutting efficiency, ensuring that the side gate 201 is completely and cleanly cut, improving the die cutting quality, and the second die cutter 501 can be die cut at both ends, when the second die cutter 501 moves upward, the barbs generated when the side gate 201 is cut downward are driven upward by the second die cutter 501 to be cut again, reducing the generation of barbs, significantly reducing the defects on the surface of the product, improving the overall appearance quality of the product, making the product smoother and neater;

[0033] The brush shaft 602 is set to be rotated by the motor 601, when the first die cutter 401 and the second die cutter 501 are separated after cutting, the cutting part of the die cutter contacts the brush shaft 602, to clean the die cutter.

[0034] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0035] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. An injection mold with a side gate and an in-mold cutting and separation mechanism, comprising a lower mold body (1), wherein an upper mold body (2) is attached to the upper end face of the lower mold body (1), characterized in that: The upper mold body (2) is provided with a separation mechanism with a side gate for in-mold cutting. The separation mechanism includes: The die-cutting assembly includes an upper die body (2) with a connecting plate (406) connected by a lifting assembly inside. The lower end of the connecting plate (406) is provided with a first die-cutting blade (401) connected by an elastic assembly. A connecting rod (5) is fixed to the outer wall of the first die-cutting blade (401), and a second die-cutting blade (501) is fixed to the lower end of the connecting rod (5). The cleaning component includes an arc groove (6) inside the upper mold body (2), and a cleaning component for cleaning the die-cutting blade is provided inside the arc groove (6).

2. The injection mold with a side gate and in-mold cutting and separation mechanism according to claim 1, characterized in that: The lifting assembly includes an electric push rod (4) that is fixedly inserted inside the upper mold body (2). The connecting plate (406) is located at the telescopic end of the electric push rod (4), and the telescopic end of the electric push rod (4) is fixedly connected to the connecting plate (406).

3. The injection mold with a side gate and in-mold cutting and separation mechanism according to claim 1, characterized in that: The elastic component includes a cavity groove (402) inside the first die-cutting blade (401), a connecting block (405) fixed to the lower end of the connecting plate (406), the lower end of the connecting block (405) being slidably connected to the inner wall of the cavity groove (402), a shock-absorbing spring (403) being uniformly fixed to the lower end face of the connecting block (405), the first die-cutting blade (401) being fixedly connected to the other end of the shock-absorbing spring (403), and a damping support rod (404) being provided in the inner ring of the shock-absorbing spring (403), the damping support rod (404) being fixedly connected to the first die-cutting blade (401).

4. The injection mold with a side gate and in-mold cutting and separation mechanism according to claim 1, characterized in that: The cleaning assembly includes a motor (601) fixed at one end of an arc groove (6), and a brush shaft (602) is fixed at the output end of the motor (601).

5. The injection mold with a side gate and in-mold cutting and separation mechanism according to claim 1, characterized in that: A pair of hydraulic rods (3) are fixed inside the lower mold body (1), and the upper mold body (2) is fixedly connected to the telescopic end of the hydraulic rods (3). Side gates (201) are opened on both sides inside the upper mold body (2).

6. The injection mold with a side gate and in-mold cutting and separation mechanism according to claim 1, characterized in that: The lower end of the upper mold body (2) is fixed with a positioning rod (301), and the lower mold body (1) is provided with a positioning groove (302) corresponding to the positioning rod (301). The positioning rod (301) and the positioning groove (302) are slidably connected.

Images