Bottle preform mold positioning device

Abstract

The utility model relates to the technical field of bottle preform molds, in particular to a bottle preform mold positioning device which comprises a movable mold and a positioning assembly. The positioning assembly comprises a mounting shell, a fixed mold, a guide column, a reset spring and an adjusting component, during mold closing, the movable mold is driven by an injection molding machine to approach the fixed mold, then the movable mold drives the guide column to extend into the guide hole, and the end of the guide column is conical, so that the guide column can conveniently extend into the guide hole; even if a certain position deviation exists between the fixed mold and the movable mold initially, the conical structure at the end part of the guide column guides the fixed mold to move until the fixed mold is aligned with the fixed mold, and the mold core on the movable mold completely corresponds to the mold cavity on the fixed mold, so that accurate positioning and stable mold closing of the movable mold and the fixed mold are realized, the mold closing precision is improved, and the production efficiency is improved. And the risk of mold damage is also reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to bottle embryo mould technical field especially relates to a bottle embryo mould positioning device. BACKGROUND

[0002] Plastic bottles are widely applied in medicine packaging, food packaging, beverage, chemical industry and each field, and the processing of plastic bottles needs to use bottle embryo mould, and the traditional bottle embryo mould is easy to deviate, and the movable mould is inconvenient to disassemble, leading to inconvenient use.

[0003] The prior art CN217073322U discloses a bottle embryo mould positioning device, which comprises a bottom plate, a fixed mould is fixedly connected to the upper surface of the bottom plate, two first mounting seats and second mounting seats are fixedly connected to the upper surface of the bottom plate, the number of the first mounting seats and the second mounting seats is two, and transmission mechanisms are slidably connected to the interiors of the two first mounting seats and the second mounting seats.

[0004] The above-mentioned device is convenient for disassembling the movable mould, but the movable mould and the fixed mould cannot be positioned when being combined, leading to insufficient precision when being combined, and eccentricity between the core and the cavity, which not only affects the product quality, but also causes the core and the inner wall of the cavity to be scratched, leading to damage of the mould. UTILITY MODEL CONTENTS

[0005] The utility model discloses a bottle embryo mould positioning device, which solves the problems of insufficient precision when combining, eccentricity between the core and the cavity, which not only affects the product quality, but also causes the core and the inner wall of the cavity to be scratched, leading to damage of the mould.

[0006] To achieve the above-mentioned purpose, the utility model provides a bottle embryo mould positioning device, which comprises a movable mould and a positioning assembly. The positioning assembly comprises a mounting shell, a fixed mould, a guide column, a return spring and an adjusting member. The mounting shell is arranged on one side of the movable mould. The fixed mould is slidably connected with the mounting shell and located on one side of the mounting shell. The guide column is fixedly connected with the movable mould and located on one side of the fixed mould close to the guide column. The fixed mould close to the guide column is provided with a guide hole. The adjusting member is arranged on the mounting shell. One end of the return spring is connected with the adjusting member. The other end of the return spring is connected with the fixed mould.

[0007] The positioning assembly further comprises a positioning block, which is fixedly connected with the movable mold and located on the side of the movable mold close to the fixed mold; the fixed mold is provided with a positioning groove, which is arranged on the side of the fixed mold close to the positioning block, and the positioning groove is matched with the positioning block.

[0008] The positioning assembly further comprises a rolling shaft, which is rotatably connected with the fixed mold and in contact with the mounting shell.

[0009] The adjusting member comprises a threaded rod and a pressing seat, the threaded rod is threadedly connected with the mounting shell and penetrates through the mounting shell, the pressing seat is rotatably connected with the threaded rod and connected with the reset spring, and is located at one end of the threaded rod.

[0010] The adjusting member further comprises a guide rod, which is fixedly connected with the pressing seat and slidably connected with the fixed mold, and located on the side of the pressing seat close to the reset spring.

[0011] The bottle embryo mold positioning device of the utility model, when the mold is closed, the movable mold is driven to move close to the fixed mold by the injection molding machine, and then the movable mold drives the guide post to extend into the guide hole, the end of the guide post is conical, which facilitates the extension into the guide hole, when the conical end of the guide post starts to contact the edge of the guide hole, due to the guiding effect of the guide post, even if there is a certain position deviation between the fixed mold and the movable mold at the beginning, the conical structure of the end of the guide post will guide the movement of the fixed mold, until the fixed mold is aligned with the fixed mold, at this time, the core on the movable mold is completely corresponding to the cavity on the fixed mold, accurate positioning and stable mold closing of the movable mold and the fixed mold are realized, not only the mold closing precision is improved, but also the risk of mold damage is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0012] 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 the prior art description will be briefly introduced.

[0013] Fig. 1 It is the overall structure schematic diagram of the bottle embryo mold positioning device of the utility model.

[0014] Fig. 2 It is the installation structure schematic diagram of the positioning block of the utility model.

[0015] Fig. 3 It is the structure schematic diagram of the adjusting member of the utility model.

[0016] In the figure: 101 - moving die, 102 - positioning assembly, 103 - mounting shell, 104 - fixed die, 105 - guide column, 106 - reset spring, 107 - adjusting member, 108 - positioning block, 109 - positioning groove, 110 - rolling shaft, 111 - threaded rod, 112 - extrusion seat, 113 - guide rod, 114 - core, 115 - cavity, 116 - guide hole. DETAILED DESCRIPTION

[0017] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, the embodiments described below are exemplary, and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0018] Please refer to Figs. 1 to 3 , wherein Fig. 1 is the overall structure schematic diagram of the bottle embryo mold positioning device, Fig. 2 is the installation structure schematic diagram of the positioning block, Fig. 3 is the structure schematic diagram of the adjusting member.

[0019] The present application provides a kind of bottle embryo mold positioning device, including moving die 101 and positioning assembly 102, the positioning assembly 102 including mounting shell 103, fixed die 104, guide column 105, reset spring 106, adjusting member 107, positioning block 108 and rolling shaft 110, the fixed die 104 has positioning groove 109, the adjusting member 107 includes threaded rod 111, extrusion seat 112 and guide rod 113, by the sliding connection of the fixed die 104 with the mounting shell 103, the position of the fixed die 104 can be adjusted, by the cooperation of the guide column 105 with the guide hole 116, the position of the fixed die 104 can be adjusted during the process that the guide column 105 is inserted into guide hole 116, so that the guide column 105 is aligned with the guide hole 116, in turn, the core 114 is aligned with the cavity 115, it can be understood that the foregoing scheme can be used when the fixed die 104 and the moving die 101 are positioned, it can also be used for adjusting the position of the fixed die 104, to avoid the fixed die 104 and the moving die 101 deviation too large, resulting in the guide column 105 cannot be inserted into guide hole 116.

[0020] For this specific embodiment, the moving die 101 is installed on an injection molding machine (not shown in the figure), a plurality of cores 114 are arranged on the side of the moving die 101 close to the fixed die 104, the moving die 101 is moved towards the fixed die 104 by the injection molding machine, and then the mold closing operation is performed, the structure and principle of the injection molding machine are prior art, and will not be described in detail here.

[0021] The installation shell 103 is arranged on one side of the movable mold 101, the fixed mold 104 is in sliding connection with the installation shell 103 and is located on one side of the installation shell 103, the guide column 105 is in fixed connection with the movable mold 101 and is located on one side of the fixed mold 104 close to the fixed mold 104, the side of the fixed mold 104 close to the guide column is provided with a guide hole 116, the adjusting member 107 is arranged on the installation shell 103, one end of the reset spring 106 is connected with the adjusting member 107, and the other end of the reset spring 106 is connected with the fixed mold 104; the installation shell 103 is provided with two and is fixedly installed on an injection molding machine, the fixed mold 104 is installed between the two installation shells 103, the side of the fixed mold 104 close to the movable mold 101 is provided with a plurality of cavities 115, the adjusting member 107 and the reset spring 106 are each provided with four and are arranged in two groups on the two installation shells 103, and the guide column 105 and the guide hole 116 are provided with a plurality of; the adjusting member 107 can extrude the reset spring 106, and then adjust the force applied by the reset spring 106 to the fixed mold 104.

[0022] When the mold is closed, the movable mold 101 is driven by the injection molding machine to move close to the fixed mold 104, so that the movable mold 101 drives the guide column 105 to extend into the guide hole 116, and the end of the guide column 105 is tapered, which facilitates the extension into the guide hole 116, and when the tapered end of the guide column 105 begins to contact the edge of the guide hole 116, due to the guiding effect of the guide column 105, even if there is a certain positional deviation between the fixed mold 104 and the movable mold 101 at the beginning, the tapered structure of the end of the guide column 105 will guide the movement of the fixed mold 104 until the fixed mold 104 is aligned with the fixed mold 104, at this time, the core 114 on the movable mold 101 is completely corresponding to the cavity 115 on the fixed mold 104, when the guide column 105 begins to contact the guide hole 116 and push the fixed mold 104 to move, the reset spring 106 will be compressed, and this compression process not only provides necessary elastic support for the movement of the fixed mold 104, but also can absorb the impact force generated due to the positional deviation to a certain extent, so as to protect the mold from being damaged; meanwhile, the adjusting member 107 can adjust the pre-tightening force of the reset spring 106, by changing the size of the pre-tightening force on both sides, the position of the fixed mold 104 can be finely adjusted, so as to avoid that the fixed mold 104 and the fixed mold 104 are deviated too much; when the mold closing is completed, the core 114 extends into the cavity 115, at this time, the injection molding machine injects molten plastic into the cavity 115 to perform injection molding of the plastic bottle, so that accurate positioning and stable mold closing of the movable mold 101 and the fixed mold 104 are realized, the mold closing precision is improved, and the risk of mold damage is reduced.

[0023] Secondly, the positioning block 108 is fixedly connected with the movable die 101 and located at one side of the movable die 101 close to the fixed die 104; the fixed die 104 is provided with positioning grooves 109 arranged at one side of the fixed die 104 close to the positioning block 108, the positioning grooves 109 are matched with the positioning block 108; the positioning block 108 and the positioning grooves 109 are provided with a plurality of positioning blocks and positioning grooves, when the guide column 105 extends into the guide hole 116, the fixed die 104 is preliminarily positioned, at this time, the positioning block 108 is aligned with the positioning groove 109, with the continuous clamping, the fixed die 104 drives the positioning block 108 to be embedded into the positioning groove 109, further positioning the clamping of the movable die 101 and the fixed die 104, and improving the accuracy of positioning.

[0024] Meanwhile, the rolling shaft 110 is rotatably connected with the fixed die 104 and in contact with the mounting shell 103; the rolling shaft 110 is provided with a plurality of rolling shafts, the plurality of rolling shafts 110 are divided into four groups and arranged on the fixed die 104, through the rotation of the rolling shaft 110, the friction between the fixed die 104 and the mounting shell 103 is reduced, the noise is reduced, and the wear caused by long-time use of the device is avoided.

[0025] In addition, the threaded rod 111 is threadedly connected with the mounting shell 103 and penetrates through the mounting shell 103; the extrusion seat 112 is rotatably connected with the threaded rod 111 and connected with the reset spring 106 and located at one end of the threaded rod 111; one end of the threaded rod 111 is also provided with a knob, through the rotation of the knob to drive the rotation of the threaded rod 111, and then the threaded rod 111 moves on the mounting shell 103, so as to drive the movement of the extrusion seat 112, so that the extrusion seat 112 extrudes or releases the reset spring 106, thereby adjusting the force applied by the reset spring 106 to the fixed die 104, when the forces applied by the reset springs 106 on both sides to the fixed die 104 are different, the position of the fixed die 104 can be finely adjusted, the accuracy of the movable die 101 and the fixed die 104 during clamping is ensured, and the influence of the deviation of the movable die 101 and the fixed die 104 on clamping is avoided.

[0026] Finally, the guide rod 113 is fixedly connected with the extrusion seat 112 and slidably connected with the fixed die 104 and located at one side of the extrusion seat 112 close to the reset spring 106; the movement of the fixed die 104 is guided through the guide rod 113, so that the fixed die 104 can only move in the opposite direction of the length of the guide rod 113, and the stability of the fixed die 104 during movement is improved.

[0027] When the bottle embryo mold positioning device is used, the movable mold 101 is driven by the injection molding machine to move towards the fixed mold 104, at this time, the tapered end of the guide column 105 first contacts the guide hole 116 on the fixed mold 104, due to the tapered design of the guide column 105, it can guide the fixed mold 104 to make a slight adjustment, even if there is a certain deviation in the initial position, it can also ensure that the guide column 105 can smoothly extend into the guide hole 116; when the guide column 105 completely extends into the guide hole 116, with the continuous movement of the movable mold 101, the positioning block 108 gradually embeds into the positioning groove 109, thereby realizing further positioning of the movable mold 101 and the fixed mold 104; when it is necessary to adjust the position of the fixed mold 104, the threaded rod 111 is driven to move by rotating the knob, the movement of the threaded rod 111 further drives the extrusion seat 112 to move, thereby changing the extrusion degree of the reset spring 106 on the fixed mold 104, by adjusting the difference in extrusion degree of the reset springs 106 on both sides, the fine adjustment of the position of the fixed mold 104 can be realized, and the bottle embryo mold positioning device realizes accurate positioning and stable mold closing of the movable mold 101 and the fixed mold 104.

[0028] The above disclosure is only one or more preferred embodiments of the application, and cannot limit the scope of the application. Those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the claims of the application still belong to the scope covered by the application.

Claims

1. A bottle preform mold positioning device, comprising a moving mold, characterized in that, Further comprising a positioning assembly; The positioning assembly comprises a mounting shell, a fixed mold, a guide column, a return spring and an adjusting member, the mounting shell is arranged on one side of the moving mold, the fixed mold is in sliding connection with the mounting shell and is located on one side of the mounting shell, the guide column is in fixed connection with the moving mold and is located on one side of the fixed mold close to the guide column, the side of the fixed mold close to the guide column is provided with a guide hole, the adjusting member is arranged on the mounting shell, one end of the return spring is connected with the adjusting member, and the other end of the return spring is connected with the fixed mold.

2. The bottle preform mold positioning device according to claim 1, characterized in that, The positioning assembly further comprises a positioning block, the positioning block is in fixed connection with the moving mold and is located on the side of the moving mold close to the fixed mold; the fixed mold has a positioning groove, the positioning groove is arranged on the side of the fixed mold close to the positioning block, and the positioning groove is matched with the positioning block.

3. The bottle preform mold positioning device according to claim 1, characterized in that, The positioning assembly further comprises a rolling shaft, the rolling shaft is in rotational connection with the fixed mold and is in contact with the mounting shell.

4. The bottle preform mold positioning device according to claim 1, characterized in that, The adjusting member comprises a threaded rod and a pressing seat, the threaded rod is in threaded connection with the mounting shell and penetrates through the mounting shell; the pressing seat is in rotational connection with the threaded rod and is connected with the return spring and located on one end of the threaded rod.

5. The bottle preform mold positioning device according to claim 4, characterized in that, The adjusting member further comprises a guide rod, the guide rod is in fixed connection with the pressing seat and is in sliding connection with the fixed mold and is located on the side of the pressing seat close to the return spring.

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