Box cover injection mold

Abstract

The utility model discloses a box cover injection mold, which belongs to the technical field of injection molds and comprises an upper mold and a lower mold positioned below the upper mold, and the upper mold and the lower mold are positioned on the same vertical central axis. One side of the upper mold and one side of the lower mold symmetrically communicate with multiple sets of butt joint pipelines communicating with internal runners of the upper mold and the lower mold in the front-back direction, positioning columns are fixed to the periphery of the bottom of the upper mold, and positioning insertion holes used for being inserted into the positioning columns are formed in the lower mold. The positioning column is provided with a monitoring assembly used in cooperation with the positioning insertion hole, through the arrangement of the monitoring assembly, an adjustable distance measuring structure can be rapidly formed, so that when the positioning column and the positioning insertion hole are staggered, the adjustable distance measuring structure can rapidly sense position changes, and under the cooperation of a controller connected with an external control system in a butt joint mode, the distance measuring structure can rapidly measure the distance between the positioning column and the positioning insertion hole. Therefore, dislocation of the positioning column and the positioning insertion hole can be effectively avoided, and the positioning column directly collides with the lower die.

Description

TECHNICAL FIELD

[0001] The utility model belongs to injection mold technical field, especially, relate to a box cover injection mold. BACKGROUND

[0002] Injection mold is a kind of tool for manufacturing plastic products, and complete structure and accurate size are given to plastic products by injection molding process, injection mold is composed of high-precision mold and mold support, and can manufacture plastic products of various shapes and sizes, in injection molding process, mold is injected into molten plastic, and the required plastic product is formed after solidification by cooling, when preparing box cover, injection mold is also needed.

[0003] When the existing injection mold is used, in order to ensure the butt joint stability, positioning column is installed on the upper mold, and positioning hole for positioning column is arranged on the lower mold, but self-adapting monitoring structure is not installed on the positioning column, so that the insertion condition of the positioning column and the positioning hole cannot be monitored in real time, if the position of the positioning column and the positioning hole is offset, the positioning column will directly impact the lower mold, and the machine cannot be stopped in time, so there is great safety hazard. UTILITY MODEL CONTENTS

[0004] In view of the problems in the prior art, the utility model provides a box cover injection mold, which solves the problem that the insertion condition of the positioning column and the positioning hole cannot be monitored in real time.

[0005] The utility model is realized in this way, a box cover injection mold, including upper mold, still include: the lower mold in the lower of upper mold, the upper mold and lower mold are located at same vertical center axis, the one side of upper mold and lower mold is symmetrically communicated with multiple groups and the butt joint pipeline of upper mold and lower mold internal runner is mutually connected, the periphery of upper mold bottom is all fixed with positioning column, the lower mold is opened with the positioning hole of positioning column and is inserted and used, the monitoring assembly of positioning hole cooperation is provided on the positioning column.

[0006] As the utility model is preferred, the monitoring assembly includes fixed column inserted on each group of positioning column, the top of fixed column is inserted through upper mold and is fixed with top square plate, the bottom of each group of fixed column is fixed with bottom column and is inserted and used with positioning hole, spring is wound on each group of fixed column, and both ends of spring are fixed on the side of top square plate and upper mold close to each other, the inner side of top square plate is fixed with extension plate, the bottom of each group of extension plate is fixed with displacement sensor and is used with upper mold, the side of upper mold top is provided with controller and is used with displacement sensor.

[0007] The utility model discloses a distance measuring structure for injection mould, including fixed column, top square board, bottom column, displacement sensor, extension board and lower mould, the bottom of each fixed column is provided with the positioning column, and the top of each positioning column is provided with the positioning insert hole.

[0008] As the utility model discloses preferred, the height value between the bottom end of bottom column and the top end of positioning column is same with the internal height value of positioning insert hole.

[0009] As the utility model discloses preferred, the top end of each bottom column is provided with the inner ring fixed buffering pad plate on fixed column.

[0010] As the utility model discloses preferred, the displacement sensor and upper mould are reserved with spacing.

[0011] As the utility model discloses preferred, each fixed column is overall square column shape structure, and the bottom end of each positioning column is provided with chamfer.

[0012] Compared with prior art, the utility model has the advantages of the following:

[0013] The utility model discloses a distance measuring structure for injection mould, including fixed column, top square board, bottom column, displacement sensor, extension board and lower mould, the bottom of each fixed column is provided with the positioning column, and the top of each positioning column is provided with the positioning insert hole. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the structure schematic diagram of the utility model;

[0015] Fig. 2 It is the structure partial explosion drawing of the utility model;

[0016] Fig. 3 It is the structure partial bottom view of the utility model.

[0017] In the drawing:

[0018] 1, upper mould;2, lower mould;3, positioning column;4, positioning insert hole;5, top square board;6, bottom column;7, spring;8, extension board;9, displacement sensor;10, butt joint pipeline;11, controller;12, fixed column;13, buffering pad plate. DETAILED DESCRIPTION

[0019] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0020] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0021] like Figs. 1-3 As shown in the figure, the present invention provides a box lid injection mold, including an upper mold 1 and a lower mold 2 located below the upper mold 1. The upper mold 1 and the lower mold 2 are located on the same vertical central axis. Multiple sets of docking pipes 10 are symmetrically connected on one side of the upper mold 1 and the lower mold 2 along the front-back direction and are interconnected with the internal flow channels of the upper mold 1 and the lower mold 2. Positioning posts 3 are fixed around the bottom of the upper mold 1. The lower mold 2 is provided with positioning holes 4 for inserting the positioning posts 3. The positioning posts 3 are provided with monitoring components that cooperate with the positioning holes 4. By setting the monitoring components, an adjustable ranging structure can be quickly formed so that when the positioning posts 3 and the positioning holes 4 are misaligned, it can be detected in time and the machine can be stopped in time. This can effectively prevent the positioning posts 3 and the positioning holes 4 from being misaligned and causing the positioning posts 3 to directly hit the lower mold 2, thereby improving the stability of the injection mold during docking.

[0022] As a preferred embodiment of this utility model, the monitoring component includes a fixing post 12 inserted into each set of positioning posts 3. The top end of the fixing post 12 penetrates the upper mold 1 and is fixed with a top square plate 5. The bottom end of each set of fixing posts 12 is fixed with a bottom post 6 for insertion into the positioning holes 4. A spring 7 is wound around each set of fixing posts 12, and the two ends of the spring 7 are fixed to the side of the top square plate 5 and the upper mold 1 that are close to each other. An extension plate 8 is fixed to the inner side of the top square plate 5. A displacement sensor 9 for use with the upper mold 1 is fixed to the bottom of each set of extension plates 8. A displacement sensor 9 for use with the upper mold 1 is provided on one side of the top of the upper mold 1. The controller 11, fixed column 12, top square plate 5, and bottom column 6, together with spring 7 and displacement sensor 9, can quickly form an adjustable ranging structure so that when the positioning column 3 is misaligned with the positioning hole 4, the adjustable ranging structure can quickly sense the position change. The controller 11 can be associated with an external cylinder or other control structure to control the movement state of the lower mold 2 in real time. The specific signal transmission and connection methods between the displacement sensor 9 and the controller 11, and between the controller 11 and the external cylinder or other control structure, are existing and relatively mature technologies, and will not be elaborated here.

[0023] As a preferred embodiment of this utility model, a gap is reserved between the outer surface of the base post 6 and the inner wall of the positioning hole 4. This gap is a small gap to avoid contact between the base post 6 and the inner wall of the positioning hole 4, which would create a certain resistance and affect the monitoring accuracy of the displacement sensor 9.

[0024] As the utility model is preferred, the height value between the bottom end of the bottom column 6 and the top end of the positioning column 3 is same with the internal height value of the positioning jack 4, the design of same height value avoids the change of the value of displacement sensor 9 when the bottom column 6 contacts with the bottom end of the positioning jack 4, and can avoid the spring 7 to keep deforming state for a long time, and affect the overall service life of the spring 7.

[0025] As the utility model is preferred, the top end of each group of bottom column 6 is provided with the buffer pad plate 13 fixed on the fixed column 12, the design of buffer pad plate 13 can give certain buffer force when the bottom column 6 contacts with the positioning column 3, and avoid the damage of the bottom column 6 and the positioning column 3 by hard direct contact.

[0026] As the utility model is preferred, the displacement sensor 9 and the upper die 1 are reserved with spacing, the displacement sensor 9 is detachable design, and the height value is used, which is convenient for replacing and maintaining the displacement sensor 9, avoids the need for real-time stretching of the spring 7 when installing the displacement sensor 9.

[0027] As the utility model is preferred, each group of fixed column 12 is in square column shape structure, and the bottom end of each group of positioning column 3 is provided with chamfer, the fixed column 12 in square column shape structure design can avoid self-rotation, and the design of chamfer can make the positioning column 3 and the positioning jack 4 can be stably inserted.

[0028] The working principle of the utility model is:

[0029] Reference Figs. 1-3Under the elastic action of the spring 7, a certain supporting force can be formed on the top square plate 5, so that the displacement sensor 9 keeps a certain spacing with the upper die 1 when not affected by external force, and the maximum fluctuation value of the spacing can be preset by the controller 11, and at this time, the spring 7 can simultaneously give the fixed column 12, the top square plate 5 and the bottom column 6 a certain movable space, and the spring 7 also has a certain reset force, which is convenient for subsequent reset. When the upper die 1 is controlled to move downward by the external cylinder or other control structure, the positioning column 3 and the upper part thereof will move synchronously, at this time, if the bottom column 6 will be inserted into the positioning hole 4 in advance, the top square plate 5 will not have a large displacement, and it is determined that the positioning column 3 can be stably connected with the positioning hole 4. Even if the upper die 1 and the lower die 2 contact and vibrate, the value of the displacement sensor 9 will not fluctuate greatly. If the bottom column 6 fails to directly insert into the corresponding positioning hole 4, the bottom column 6 will first contact the lower die 2, and under the action of the downward movement of the upper die 1, the distance between the bottom column 6 and the positioning column 3 will be shortened, and the distance between the top square plate 5 and the displacement sensor 9 and the upper die 1 will be greatly expanded. At this time, the displacement sensor 9 can quickly sense the position change and transmit the signal to the controller 11. At this time, the controller 11 connected with the external control system can control the external cylinder or other control structure to stop running quickly, so as to stop the machine in time, which can effectively prevent the positioning column 3 from directly impacting the lower die 2.

[0030] It should 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.

[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A box cover injection mold comprising an upper mold (1), characterized in that: Also include: Lower mold (2) below the upper mold (1), the upper mold (1) and lower mold (2) are located in the same vertical center axis, the upper mold (1) and lower mold (2) one side along the front and back direction symmetrically communicated with a plurality of groups and upper mold (1) and lower mold (2) internal flow channel each other connected docking pipeline (10), the bottom of the upper mold (1) is fixed with positioning column (3) around, the lower mold (2) is provided with positioning hole (4) used for inserting positioning column (3), the positioning column (3) is provided with monitoring assembly used in cooperation with positioning hole (4).

2. A box cover injection mold as claimed in claim 1, characterized in that: The monitoring assembly includes a fixed column (12) inserted into each group of positioning column (3), the top end of the fixed column (12) penetrates the upper mold (1) and is fixed with the top square plate (5), the bottom end of each group of the fixed column (12) is fixed with the bottom column (6) inserted into the positioning hole (4), each group of the fixed column (12) is wound with spring (7) and the both ends of the spring (7) are fixed on the side of the top square plate (5) and the upper mold (1) close to each other, the inner side of the top square plate (5) is fixed with the extension plate (8), the bottom of each group of the extension plate (8) is fixed with the displacement sensor (9) used in cooperation with the upper mold (1), one side of the top of the upper mold (1) is provided with the controller (11) used in cooperation with the displacement sensor (9).

3. A box cover injection mold as claimed in claim 2, characterized in that: The outer surface of the bottom column (6) and the inner wall of the positioning hole (4) are reserved with a spacing.

4. A box cover injection mold as claimed in claim 2, wherein: The height value between the bottom end of the bottom column (6) and the top end of the positioning column (3) is the same as the internal height value of the positioning hole (4).

5. A box cover injection mold as claimed in claim 2, wherein: The top end of each group of the bottom column (6) is provided with the buffer pad plate (13) fixed on the fixed column (12).

6. A box cover injection mold as defined in claim 2, wherein: The displacement sensor (9) and the upper mold (1) are reserved with a spacing.

7. A box cover injection mold as defined in claim 2, wherein: Each group of the fixed column (12) is a square column structure, and the bottom end of each group of the positioning column (3) is provided with a chamfer.

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