Quick clamping fixture for injection mold

Abstract

The utility model discloses a quick clamping fixture for injection mould, including body mechanism and limit mechanism, body mechanism includes injection molding machine template, base, mould, first connecting subassembly and second connecting subassembly, the base is detachably installed on injection molding machine template through first connecting subassembly, and the mould is connected with the second connecting subassembly through the first connecting subassembly. The mold is detachably mounted on the base through a second connecting assembly; the limiting mechanism comprises a buckle connecting assembly and a dismounting and mounting assembly, the buckle connecting assembly is installed between the base and the mold, and the dismounting and mounting assembly is used for dismounting and mounting the buckle assembly. Through a sliding guide structure of the sliding block and the sliding groove, rapid preliminary positioning and centering of the mold are achieved, leveling and alignment are not needed, and the installation efficiency is greatly improved; the core spring drives the buckle assembly, the die is pushed in through the wedge-shaped part and the limiting rod, namely automatic locking is achieved, and clamping is reliable. And one-key synchronous unlocking can be achieved through the L-shaped pull rod, and dismounting is convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to injection mold technical field, concretely relates to a kind of quick clamping fixture for injection mold. BACKGROUND

[0002] In injection molding production process, the installation, positioning and fixing of mold are the key link that influences production efficiency and product quality.The traditional mold clamping mode is mostly adopted the structure of bolt and pressing plate, and the bolt is tightened one by one by spanner or other tools to realize the fixation of mold.This mode is simple in structure, and clamping is reliable, but the operation process is complicated, and the time consumption of mold mounting and dismounting is long, and the labor intensity is big, especially in the production mode of multiple varieties and small batch, frequent mold change leads to the reduction of equipment utilization, and it is difficult to adapt to the demand of modern injection molding production for quick response.

[0003] In recent years, in order to improve the mold change efficiency, some quick clamping mechanisms are gradually introduced into the injection molding field.For example, the clamp that is driven by pneumatic or hydraulic pressure can realize the quick locking and releasing of mold, but this kind of device is usually complex in structure, high in manufacturing cost, and needs to be equipped with external power source, so the maintenance requirement is high, and it is not conducive to popularization and application in small and medium-sized enterprises.Although some other mechanical quick clamps are relatively simple in structure, they generally have the problems of insufficient clamping force and low positioning accuracy, and mold micro-motion is easily caused by vibration or pressure fluctuation in the injection molding process, which influences the molding quality and equipment operation stability.

[0004] The information disclosed in the background section of this document is only intended to increase the understanding of the general background of the present utility model, and should not be considered as acknowledging or implying in any form that the information constitutes prior art known to those skilled in the art. CONTENT OF UTILITY MODEL

[0005] The utility model aims at providing a kind of quick clamping fixture for injection mold, which can provide a kind of quick clamping fixture for injection mold, simple in structure, convenient to operate, clamping reliable and cost moderate, to effectively improve mold replacement efficiency while ensuring molding accuracy.

[0006] In order to achieve the above-mentioned purpose, the technical scheme provided by a specific embodiment of the utility model is as follows:

[0007] A kind of quick clamping fixture for injection mold, including body mechanism and limiting mechanism, the body mechanism includes injection molding machine template, base, mold, first connecting component and second connecting component, the base is installed on the injection molding machine template in a detachable manner by the first connecting component, the mold is installed on the base in a detachable manner by the second connecting component;The limiting mechanism includes buckle connecting component and dismounting component, the buckle connecting component is installed between the base and the mold, and the dismounting component is used for dismounting the buckle component, so that the dismounting between the mold and the base is convenient.

[0008] In one or more embodiments of the present application, the first connecting assembly comprises a sliding groove and a sliding block, and the sliding groove is arranged on the base.

[0009] In one or more embodiments of the present application, the sliding block is fixedly connected to the bottom of the mold, and the sliding block is slidingly connected in the sliding groove.

[0010] In one or more embodiments of the present application, the second connecting assembly comprises a buffer layer, a fixed screw rod and a supporting block, and the buffer layer is arranged between the mold plate of the injection molding machine and the base.

[0011] In one or more embodiments of the present application, the fixed screw rod is provided with a plurality of and is respectively threaded on the base and the mold plate of the injection molding machine, and the supporting block is provided with a plurality of and is respectively placed between the base and the mold.

[0012] In one or more embodiments of the present application, the buckle assembly comprises a mounting groove, a limiting rod, a limiting groove, a compression spring and a wedge part, and the mounting groove is provided with a pair of and is arranged on the front and rear groove walls of the sliding block in a front and rear symmetrical manner.

[0013] In one or more embodiments of the present application, the limiting rod is provided with a pair of and is slidingly connected in a pair of the mounting grooves, the limiting groove is provided with a pair of and is arranged on the front and rear side walls of the sliding block, one end of the limiting rod outside the mounting groove is respectively sleeved in the limiting groove, and the wedge part is provided with a pair of and is arranged on one end of the limiting rod outside the mounting groove.

[0014] In one or more embodiments of the present application, the compression spring is provided with a pair of and is respectively arranged in a pair of the mounting grooves, one end of the compression spring is arranged on the groove wall away from the limiting rod on one side of the mounting groove, and the other end of the compression spring is arranged on the side wall away from the wedge part on one end of the limiting rod.

[0015] In one or more embodiments of the present application, the dismounting assembly comprises a movable groove, an L-shaped pull rod and a protruding block, and the movable groove is provided with a pair of and is arranged on the mounting groove in a penetrating manner.

[0016] In one or more embodiments of the present application, the L-shaped pull rod is provided with a pair of and is respectively penetrated through a pair of the movable grooves and is fixedly connected to a pair of the limiting rods, and the protruding block is fixedly connected to one end of the L-shaped pull rod away from the mounting groove.

[0017] Compared with the prior art, the utility model discloses a sliding guide structure of sliding block and sliding slot, realizes the quick primary positioning and centering of mould, does not need to level and find the right, greatly promotes the installation efficiency. The core spring drive buckle assembly realizes mould push in automatic locking, clamping reliable through the wedge portion and limiting rod, can one key synchronous unlocking through L type pull rod, and disassembly is convenient. The scheme realizes quick, accurate clamping and disassembly with simple mechanical structure, effectively shortens the die changing time, and has the advantages of low cost and high reliability simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, below will be to the embodiment or prior art description needed to use the drawing briefly introduce, obviously, the drawing in the following description only some embodiments in the utility model are recorded, for ordinary skilled person in the art comes, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0019] Figure 1 It is the front view of a kind of quick clamping fixture for injection mould in an embodiment of the utility model;

[0020] Figure 2 It is the perspective view of a kind of quick clamping fixture for injection mould in an embodiment of the utility model;

[0021] Figure 3 It is the explosion view of a kind of quick clamping fixture for injection mould in an embodiment of the utility model;

[0022] Figure 4 It is the schematic diagram of A in the utility model Figure 3

[0023] Figure 5 It is the schematic diagram of limiting mechanism in the utility model.

[0024] Main drawing mark explanation:

[0025] 1-body mechanism, 11-injection molding machine template, 12-base, 13-mould, 14-sliding slot, 15-sliding block, 16-buffer layer, 17-fixing screw rod, 18-supporting block, 2-limiting mechanism, 21-mounting groove, 22-limiting rod, 23-limiting slot, 24-compression spring, 25-wedge portion, 26-movable slot, 27-L type pull rod, 28-boss. DETAILED DESCRIPTION

[0026] ​In order to make the technical scheme in the utility model better understood by the person skilled in the art, the technical scheme in the utility model embodiments will be clearly and completely described below in combination with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor shall belong to the scope of protection of the utility model.

[0027] As shown in Figures 1-3 The utility model discloses a kind of quick clamping fixtures for injection mold, including body mechanism 1 and limiting mechanism 2, body mechanism 1 includes injection machine template 11, base 12, mould 13, first connecting component and second connecting component, base 12 is installed on injection machine template 11 by first connecting component in detachable manner, mould 13 is installed on base 12 by second connecting component in detachable manner;Limiting mechanism 2 includes buckle connecting component and dismounting component, buckle connecting component is installed between base 12 and mould 13, dismounting component is used to dismounting of buckle component, so that the dismounting between mould 13 and base 12 is convenient.

[0028] The quick clamping fixture for injection mold is used, when mould 13 needs to be replaced when injection, operating personnel controls dismounting component, so that buckle component releases the clamping between base 12 and mould 13, so that mould 13 can be dismounted from base 12 by second connecting component, so that the dismounting of mould 13 is quick and convenient;When the replaced mould 13 is installed, mould 13 is installed on base 12 by second connecting component, and clamping component will fix base 12 and mould 13 together by clamping during installation, so as to ensure that mould 13 is stably installed on base 12, and the installation of mould 13 can be accurately installed without leveling and alignment, which greatly improves the installation efficiency of mould 13.

[0029] As shown in Figures 3-5 First connecting component includes sliding slot 14 and sliding block 15, and sliding slot 14 is provided in base 12.

[0030] As shown in Figures 3-5 Sliding block 15 is fixedly connected to the bottom of mould 13, and sliding block 15 is slidingly connected in sliding slot 14. In order to facilitate the dismounting and replacement of mould 13, the bottom of all moulds 13 of the same injection machine is fixedly provided with sliding blocks 15 of the same specification, and when mould 13 is replaced, sliding block 15 is only needed to be slidingly installed in sliding slot 14, so that the replacement of mould 13 can be quickly realized, and the stability and installation accuracy of different moulds 13 installed on base 12 are ensured.

[0031] As shown in Figure 3As shown, the second connecting assembly comprises a buffer layer 16, fixing screws 17 and supporting blocks 18, and the buffer layer 16 is installed between the injection molding machine template 11 and the base 12.

[0032] As shown in Figure 3 The fixing screws 17 are provided in plurality and are respectively threadedly connected to the base 12 and the injection molding machine template 11, and the supporting blocks 18 are provided in plurality and are respectively placed between the base 12 and the mold 13. The base 12 is a base for installing the mold 13, and the base 12 is detachably installed on the injection molding machine template 11 under the action of the plurality of fixing screws 17, and under the action of the buffer layer 16, the force borne by the mold 13 during injection molding can be effectively buffered.

[0033] As shown in Figures 3-5 The buckle assembly comprises a mounting groove 21, a limiting rod 22, a limiting groove 23, a compression spring 24 and a wedge-shaped part 25, and the mounting groove 21 is provided in pair and is respectively opened in a front-rear symmetrical manner on the front-rear groove walls of the sliding block 15.

[0034] As shown in Figures 3-5 The limiting rod 22 is provided in pair and is respectively slidingly connected in the pair of mounting grooves 21, the limiting groove 23 is provided in pair and is respectively opened on the front-rear side walls of the sliding block 15, one end of the pair of limiting rods 22 placed outside the mounting groove 21 is respectively sleeved in the limiting groove 23, and the wedge-shaped part 25 is provided in pair and is respectively opened on one end of the limiting rod 22 placed outside the mounting groove 21.

[0035] As shown in Figures 3-5 The compression spring 24 is provided in pair and is respectively installed in the pair of mounting grooves 21, one end of the compression spring 24 is installed on the groove wall of the mounting groove 21 away from the limiting rod 22, and the other end of the compression spring 24 is installed on the side wall of the limiting rod 22 away from the wedge-shaped part 25.

[0036] Specifically, when the mold 13 is installed, the sliding block 15 needs to be slidingly connected in the sliding groove 14. When the sliding block 15 slides in the sliding groove 14, the front and rear sidewalls of the sliding block 15 will be in contact with the limiting grooves 23. Under the action of the inclined surface of the wedge-shaped part 25, the front and rear sidewalls of the sliding block 15 will be extruded by the wedge-shaped part 25 to extrude the limiting grooves 23, so that the limiting rods 22 retract into the installation grooves 21. At the same time, the limiting rods 22 retract to further extrude and contract the compression springs 24. When the limiting rods 22 completely retract into the installation grooves 21, the limiting rods 22 will not limit the sliding of the sliding block 15 in the sliding groove 14, so that the sliding block 15 slides in place in the sliding groove 14. When the sliding block 15 slides in place, the limiting rods 22 will be in a position opposite to the limiting grooves 23, so that the limiting rods 22 can be pushed into the limiting grooves 23 under the pushing of the compression springs 24, so that the sliding of the sliding block 15 in the sliding groove 14 can be limited under the action of the limiting rods 22, ensuring that the mold 13 is stably installed on the base 12.

[0037] As shown in Figures 3-5 , the dismounting assembly includes a movable groove 26, an L-shaped pull rod 27, and a protrusion 28. The movable groove 26 is provided in a pair and is formed in a penetrating manner on the installation groove 21.

[0038] As shown in Figures 3-5 , the L-shaped pull rod 27 is provided in a pair and penetrates through the pair of movable grooves 26 and is fixedly connected to the pair of limiting rods 22. The protrusion 28 is fixedly connected to one end of the L-shaped pull rod 27 away from the installation groove 21.

[0039] Specifically, when the mold 13 needs to be replaced, the sliding block 15 needs to be slid out of the sliding groove 14. The operator only needs to pull the L-shaped pull rod 27 through the protrusion 28, so that the limiting rods 22 are moved by the L-shaped pull rod 27, and the limiting rods 22 retract into the installation grooves 21. When the limiting rods 22 completely retract into the installation grooves 21, the sliding block 15 can be pulled out of the sliding groove 14 by pulling the mold 13, so as to dismount the mold 13.

[0040] When using, when the mold 13 needs to be replaced when injection molding, the operator pulls the L-shaped pull rod 27 through the protrusion 28, thereby moving the limiting rod 22 through the L-shaped pull rod 27, so that the limiting rod 22 is retracted into the mounting groove 21, when the limiting rod 22 is completely retracted into the mounting groove 21, by pulling the mold 13, the sliding block 15 can be pulled out from the sliding groove 14, so that the mold 13 is disassembled, so that the mold 13 is disassembled quickly and conveniently; at the same time when the replaced mold 13 is installed, when the sliding block 15 slides in the sliding groove 14, the front and rear two side walls of the sliding block 15 will contact the limiting groove 23, under the action of the inclined surface of the wedge-shaped part 25, the front and rear two side walls of the sliding block 15 will be extruded by the wedge-shaped part 25 The limiting groove 23 makes the limiting rod 22 retract into the mounting groove 21, and the limiting rod 22 retracts while further extruding and shrinking the compression spring 24, when the sliding block 15 slides into place, the limiting rod 22 will be in the opposite position with the limiting groove 23, so that the limiting rod 22 can be pushed into the limiting groove 23 under the push of the compression spring 24, so that the sliding block 15 can be limited to slide in the sliding groove 14 under the action of the limiting rod 22, so as to ensure that the mold 13 is stably installed on the base 12, and the guide of the second connecting assembly can make the installation of the mold 13 not need to be leveled and aligned, so as to accurately install, greatly improving the installation efficiency of the mold 13.

[0041] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0042] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A quick-clamping fixture for injection molds, characterized in that, include: The main body includes an injection molding machine template, a base, a mold, a first connecting component, and a second connecting component. The base is detachably mounted on the injection molding machine template via the first connecting component, and the mold is detachably mounted on the base via the second connecting component. The first connecting component includes a groove and a slider. The groove is formed on the base, and the slider is fixedly connected to the bottom of the mold and slidably connected within the groove. A limiting mechanism includes a snap-fit ​​connection assembly and a disassembly assembly. The snap-fit ​​connection assembly is installed between the base and the mold, and the disassembly assembly is used to disassemble and assemble the snap-fit ​​assembly, making it convenient to disassemble and assemble the mold and the base. The snap-fit ​​assembly includes an mounting groove, a limiting rod, a limiting slot, a compression spring, and a wedge-shaped portion. A pair of mounting grooves are provided and symmetrically opened on the front and rear groove walls of the slider. A pair of limiting rods are provided and slidably connected to a pair of mounting grooves. A pair of limiting slots are provided and opened on the front and rear side walls of the slider. One end of each pair of limiting rods located outside the mounting groove is sleeved within the limiting slot. A pair of wedge-shaped portions are provided and opened on the ends of the limiting rods located outside the mounting grooves. A pair of compression springs are provided and installed in a pair of mounting grooves. One end of the compression spring is installed on the groove wall of the mounting groove away from the limiting rod, and the other end of the compression spring is installed on the side wall of the limiting rod away from the wedge-shaped portion.

2. The quick-clamping fixture for injection molds according to claim 1, characterized in that, The second connecting component includes a buffer layer, a fixing screw, and a support block, wherein the buffer layer is installed between the injection molding machine template and the base.

3. The quick-clamping fixture for injection molds according to claim 2, characterized in that, Multiple fixing screws are provided and are threadedly connected to the base and the injection molding machine template, respectively. Multiple support blocks are provided and are placed between the base and the mold.

4. A quick-clamping fixture for injection molds according to claim 3, characterized in that, The assembly / disassembly assembly includes a movable slot, an L-shaped tie rod, and a protrusion. The movable slot is provided in pairs and is formed through the mounting slot.

5. A quick-clamping fixture for injection molds according to claim 4, characterized in that, The L-shaped tie rod is provided with a pair of rods that pass through a pair of movable slots and are fixedly connected to a pair of limiting rods. The protrusion is fixedly connected to the end of the L-shaped tie rod away from the mounting slot.

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