High-precision multicolor injection mold

Abstract

The utility model relates to the technical field of molds, in particular to a high-precision multicolor injection mold. Comprising a bottom plate, a left mold body, a right mold body and an auxiliary mechanism, and the auxiliary mechanism comprises a left support, a right support, a sealing disc, an ejection hydraulic cylinder, an ejection rod, a driving hydraulic cylinder and a guide device. And automatic ejection can be conducted through the ejection hydraulic cylinder and the ejection rod, rapid material taking is facilitated, and then the problems that when an existing multi-color injection mold device is actually used, mold matched injection molding and mold separated material taking need to be achieved through manual operation, the labor intensity is large, and the machining efficiency is low can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould technical field especially relates to a high accuracy multicolor injection mould. BACKGROUND

[0002] In the process of multicolor plastics injection molding, the workpiece after injection molding is often in the injection molding groove of the mold, and after the injection of multicolor plastics is completed, the two sets of injection molds are opened, and the internal plastic is taken out, but in the process of taking out, the plastic part may be stuck in the mold, or the internal plastic cannot be easily taken out.

[0003] The prior art CN218399147U discloses a multicolor injection mold device, relating to the technical field of injection mold. The multicolor injection mold device comprises a sliding plate and an injection mold module, the injection mold module is slidingly connected inside the base, the sliding plate is placed on the upper part of the base, the upper surface of the base is fixedly connected with a fixed plate, and the side wall of the fixed plate is fixedly connected with the sliding plate. The multicolor injection mold device realizes the movement of the injection mold module to the two sides driven by the rotating rocker, until the circular plate contacts the fixed plate and presses the spring, the first cylinder moves inward, pushes the clamping block and the push plate out of the inside of the second slot, and the completed plastic part is pushed out, which greatly facilitates the separation of the injection molded part from the inside of the injection mold module and realizes automatic production.

[0004] The above-mentioned multicolor injection mold device needs manual rotation of the rocker to realize mold matching injection and mold separation and material taking, which not only has high labor intensity, but also has low processing efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a high-precision multicolor injection mold, which aims at solving the problems of manual operation, high labor intensity and low processing efficiency of the existing multicolor injection mold device in actual use.

[0006] To achieve the above-mentioned purpose, the utility model provides a high-precision multicolor injection mold, which comprises a bottom plate, a left mold body and a right mold body, the left mold body is arranged on the left side of the bottom plate, the right mold body is detachably connected with the left mold body and located on the right side of the bottom plate, and further comprises an auxiliary mechanism.

[0007] The auxiliary mechanism comprises a left support, a right support, a sealing disc, an ejection hydraulic cylinder, a ejector rod, a driving hydraulic cylinder and a guide device, the left support is fixed on the left side of the bottom plate, the right support is fixed on the right side of the bottom plate, the sealing disc is fixedly connected with the left mold body and the right mold body respectively and is located on the left mold body and the right mold body respectively, the ejection hydraulic cylinder is fixed on the sealing disc, the ejector rod is screwed on the output end of the ejection hydraulic cylinder and is in sliding fit with the left mold body and the right mold body respectively, the driving hydraulic cylinder is fixed on the left support and the right support respectively, the output ends of the driving hydraulic cylinders are connected with the left mold body and the right mold body respectively, and the guide device is arranged on the left and right sides of the left mold body and the right mold body respectively.

[0008] The left mold body and the right mold body are each vertically provided with a semicircular feeding port at the top, and the semicircular feeding port is in communication with the forming cavity in the left mold body and the right mold body respectively.

[0009] The guide device comprises a first linear sliding bearing and a first guide rod, the first linear sliding bearing is connected with the left mold body and the right mold body respectively and is located on the left and right sides of the top of the left mold body and the right mold body respectively, the first guide rod is detachably connected with the left support, the first guide rod is fixedly connected with the right support and is in sliding fit with the first linear sliding bearing and is located on the side of the right support close to the left support.

[0010] The auxiliary mechanism further comprises a limiting plate, the limiting plate is fixedly connected with the first guide rod and is located on the side of the first guide rod away from the right support.

[0011] The auxiliary mechanism further comprises a second linear sliding bearing and a second guide rod, the second linear sliding bearing is fixedly connected with the left support and the right support respectively and is located on the left support and the right support respectively, the second guide rod is threadedly connected with the left mold body and the right mold body respectively and is in sliding fit with the second linear sliding bearing and is located on the left mold body and the right mold body respectively.

[0012] The utility model discloses a high accuracy multicolor injection mold, when processing, control drive hydraulic cylinder action stretch out, realize left mould body and right mould body combination formation injection molding structure under the cooperation of guiding device, then can directly carry out injection molding processing, after processing, control drive hydraulic cylinder action retract, can realize left mould body and right mould body separate and take material, then, look product is on left mould body or right mould body, and control the ejection hydraulic cylinder action stretch out of corresponding position, drive ejector rod to move and eject product from the cavity, complete unloading, the combination and separation of left mould body and right mould body of the application can be realized automatic control through drive hydraulic cylinder, and automatic ejection material can be carried out through the ejection hydraulic cylinder and ejector rod, is favorable to fast take material, and then can solve the problem that the existing multicolor injection mold device needs manual operation to realize when actually using, and the mold cooperation injection and mold separation take material all need manual operation to realize, manual intensity is bigger, and the processing efficiency is low. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below.

[0014] Figure 1 It is the whole structure schematic diagram of high accuracy multicolor injection mold of the utility model first embodiment.

[0015] Figure 2 It is the setting position schematic diagram of ejector rod of the utility model first embodiment.

[0016] Figure 3 It is the whole structure schematic diagram of high accuracy multicolor injection mold of the utility model second embodiment.

[0017] In the drawing: 101-base plate, 102-left mould body, 103-right mould body, 104-left support, 105-right support, 106-sealing disc, 107-ejection hydraulic cylinder, 108-ejector rod, 109-drive hydraulic cylinder, 110-first linear sliding bearing, 111-first guide rod, 112-limiting plate, 201-second linear sliding bearing, 202-second guide rod. DETAILED DESCRIPTION

[0018] The embodiments of the utility model will be described in detail below, the examples of the embodiments are shown in the drawings, the embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and can not be understood as the limitation of the utility model.

[0019] Embodiment one:

[0020] As shown in Figure 1 And Figure 2 Indicated, wherein Figure 1It is the schematic diagram of the overall structure of high-precision multi-color injection mold, Figure 2 It is the schematic diagram of the setting position of the ejector rod 108, and the utility model provides a kind of high-precision multi-color injection mold: including bottom plate 101, left mold body 102, right mold body 103 and auxiliary mechanism, the auxiliary mechanism includes left support 104, right support 105, sealing disc 106, ejector hydraulic cylinder 107, ejector rod 108, drive hydraulic cylinder 109, limiting plate 112 and guide device, the guide device includes first linear sliding bearing 110 and first guide rod 111.Through the foregoing scheme, the problems that the existing multi-color injection mold device needs manual operation to realize mold matching injection and mold separation and material taking during actual use, the manual strength is larger, and the processing efficiency is low, can be solved, it can be understood that the foregoing scheme can improve processing efficiency.

[0021] In the embodiment, the left mold body 102 is arranged on the left side of the bottom plate 101, the right mold body 103 is detachably connected with the left mold body 102 and located on the right side of the bottom plate 101, four positioning cylindrical pins are arranged on the matching end face of the left mold body 102, and four positioning holes are arranged on the matching end face of the right mold body 103, so that better positioning can be achieved during matching.

[0022] The left support 104 is fixed on the left side of the bottom plate 101, the right support 105 is fixed on the right side of the bottom plate 101, the sealing disc 106 is fixedly connected with the left mold body 102 and the right mold body 103 respectively and is located on the left mold body 102 and the right mold body 103 respectively, the ejection hydraulic cylinder 107 is fixed on the sealing disc 106, the ejector rod 108 is screwed on the output end of the ejection hydraulic cylinder 107 and is in sliding fit with the left mold body 102 and the right mold body 103 respectively, the driving hydraulic cylinder 109 is fixed on the left support 104 and the right support 105 respectively, the output end of the driving hydraulic cylinder 109 is connected with the left mold body 102 and the right mold body 103 respectively, and the guide device is arranged on the left and right sides of the left mold body 102 and the right mold body 103 respectively. The left support 104 and the right support 105 are installed on the bottom plate 101 through positioning pins and bolts, the positioning pins and the bolts are arranged in a countersunk manner from bottom to top, the sealing disc 106 is installed on the outside of the top opening of the left mold body 102 and the right mold body 103 through bolts, the cylinder barrel of the ejection hydraulic cylinder 107 is fixed on the sealing disc 106 through bolts, the bolts are arranged in a countersunk manner, the threaded mounting cavity of the ejector rod 108 is directly connected with the outer threaded end of the output end of the ejection hydraulic cylinder 107, the ejection hydraulic cylinder 107 is powered by an external integrated hydraulic station, the working pressure is set according to the stress of the product to avoid damage to the product during ejection, the front cylinder barrel of the driving hydraulic cylinder 109 is pulled on the left support 104 and the right support 105 through bolts, the outer threaded end of the output end of the driving hydraulic cylinder 109 is directly connected with the connecting threaded hole of the left mold body 102 and the right mold body 103, and a backup nut is arranged to prevent loosening, and the guide device is used for assembly and guide of the left mold body 102 and the right mold body 103.

[0023] Secondly, the left mold body 102 and the right mold body 103 are each vertically provided with a semicircular feeding port at the top, and the semicircular feeding port is in communication with the molding cavity in the left mold body 102 and the right mold body 103 respectively.

[0024] Then, the first linear sliding bearing 110 is connected with the left mold body 102 and the right mold body 103 respectively and located at both sides of the top of the left mold body 102 and the right mold body 103 respectively; the first guide rod 111 is detachably connected with the left support 104, fixedly connected with the right support 105 and slidably matched with the first linear sliding bearing 110 and located at the side of the right support 105 close to the left support 104. The first linear sliding bearing 110 is T-shaped in cross section, directly fixed in the through fitting installation stepped hole on the left mold body 102 and the right mold body 103 by bolts, the first guide rod 111 is T-shaped in cross section, the installation disc is fixed on the right support 105 by bolts, the circular shaft end can pass through the through hole of the left support 104 to realize support, and the first guide rod 111 can be slidably matched with the first linear sliding bearing 110.

[0025] Finally, the limiting plate 112 is fixedly connected with the first guide rod 111 and located at the side of the first guide rod 111 away from the right support 105. The limiting plate 112 is pulled tight on the first guide rod 111 by bolts, pulled tight after installation to ensure the working stability of the first guide rod 111.

[0026] When the multi-color injection mold device is used to solve the problems that manual operation is needed to realize mold matching injection and mold separation and taking out in actual use of the existing multi-color injection mold device, manual strength is large and processing efficiency is low, during processing, the driving hydraulic cylinder 109 is controlled to act and extend, the left mold body 102 and the right mold body 103 are combined to form an injection structure under the cooperation of the guide device, at this time, the ejecting hydraulic cylinder 107 is in a retracted state, then injection liquid can be injected through the circular material port formed at the top of the left mold body 102 and the right mold body 103, direct injection processing can be carried out, after processing is completed, the driving hydraulic cylinder 109 is controlled to act and retract, the left mold body 102 and the right mold body 103 can be separated to take out materials, then, whether the product is on the left mold body 102 or the right mold body 103 is determined, the ejecting hydraulic cylinder 107 at the corresponding position is controlled to act and extend, the top rod 108 is driven to move to eject the product from the cavity, and unloading is completed. During processing and use, the combination and separation of the left mold body 102 and the right mold body 103 can be automatically controlled by the driving hydraulic cylinder 109, and the materials can be automatically ejected by the ejecting hydraulic cylinder 107 and the top rod 108, which is beneficial to rapid material taking, and thus the problems that manual operation is needed to realize mold matching injection and mold separation and taking out in actual use of the existing multi-color injection mold device, manual strength is large and processing efficiency is low can be solved.

[0027] Embodiment two:

[0028] As Figure 3 shown, wherein Figure 3 is the overall structure schematic diagram of high-precision multi-color injection mold, on the basis of the first embodiment, the utility model provides a high-precision multi-color injection mold, the auxiliary mechanism still includes second linear sliding bearing 201 and second guide rod 202.

[0029] Wherein, second linear sliding bearing 201 respectively with left support 104 and right support 105 fixed connection, and respectively located left support 104 and right support 105 on;Second guide rod 202 respectively with left mold body 102 and right mold body 103 screw connection, and with second linear sliding bearing 201 sliding fit, and respectively located left mold body 102 and right mold body 103 on.Second linear sliding bearing 201 cross section is T, by bolt directly fixed in the mounting hole on left support 104 and right support 105, second guide rod 202 front side outer thread end portion can directly be installed in the connecting screw hole on left mold body 102 and right mold body 103, rear side optical axis part and second linear sliding bearing 201 sliding fit.

[0030] In the embodiment, by setting second linear sliding bearing 201 and second guide rod 202, the stability of left mold body 102 and right mold body 103 cooperation can be improved.

[0031] The above disclosed only one or more preferred embodiments of the application has, it cannot be limited by the scope of the application, those skilled in the art can understand that the implementation of all or part of the above-mentioned embodiments, and equivalent changes made in the application claims, still belong to the scope covered by the application.

Claims

1. A high-precision multi-color injection mold, comprising a base plate, a left mold body and a right mold body, the left mold body is arranged on the left side of the base plate, the right mold body is detachably connected with the left mold body and located on the right side of the base plate, characterized in that, it further comprises an auxiliary mechanism; The auxiliary mechanism comprises a left support, a right support, a sealing disc, an ejection hydraulic cylinder, a ejector rod, a driving hydraulic cylinder and a guide device, the left support is fixed on the left side of the base plate, the right support is fixed on the right side of the base plate, the sealing disc is fixedly connected with the left mold body and the right mold body respectively and located on the left mold body and the right mold body respectively, the ejection hydraulic cylinder is fixed on the sealing disc, the ejector rod is screwed on the output end of the ejection hydraulic cylinder and slidably matched with the left mold body and the right mold body respectively, the driving hydraulic cylinder is fixed on the left support and the right support respectively, the output end of the driving hydraulic cylinder is connected with the left mold body and the right mold body respectively, and the guide device is arranged on both sides of the left mold body and the right mold body respectively.

2. The high-precision multi-color injection mold of claim 1, characterized in that, The top of the left mold body and the right mold body is respectively vertically provided with a semicircular feeding port, and the semicircular feeding port is in communication with the molding cavity in the left mold body and the right mold body respectively.

3. The high-precision multi-color injection mold of claim 1, characterized in that, The guide device comprises a first linear sliding bearing and a first guide rod, the first linear sliding bearing is connected with the left mold body and the right mold body respectively and located on both sides of the top of the left mold body and the right mold body respectively; the first guide rod is detachably connected with the left support, the first guide rod is fixedly connected with the right support and slidably matched with the first linear sliding bearing and located on the side of the right support close to the left support.

4. The high-precision multi-color injection mold of claim 3, characterized in that, The auxiliary mechanism further comprises a limiting plate, the limiting plate is fixedly connected with the first guide rod and located on the side of the first guide rod away from the right support.

5. The high-precision multi-color injection mold of claim 1, characterized in that, The auxiliary mechanism further comprises a second linear sliding bearing and a second guide rod, the second linear sliding bearing is fixedly connected with the left support and the right support respectively and located on the left support and the right support respectively; the second guide rod is threadedly connected with the left mold body and the right mold body respectively and slidably matched with the second linear sliding bearing and located on the left mold body and the right mold body respectively. ​

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