Injection mold with quick-detachable insert

Abstract

The utility model belongs to the technical field of injection molds, and discloses an injection mold with a quick-detachable insert, comprising a workbench, a guide groove is provided on the top outer wall of the workbench, a mold cavity is detachably mounted on the top outer wall of the workbench, a quick-detachment mechanism is provided on the inner wall of the workbench, and the quick-detachment mechanism comprises a fixed plate, the outer wall of the fixed plate is elastically connected with a clamping plate through a telescopic spring, a clamping block is fixedly connected to the outer wall of the clamping plate, and a slider A is fixedly connected to the bottom outer wall of the clamping plate. By moving the pull rod upward, the limit block A is clamped with the clamping groove A, and then pushing the pull rod, the two groups of clamping plates can be driven to move to both sides at the same time through the connecting rod, so that the limit of the mold cavity can be released, and the mold cavity can be removed for replacement. The replaced mold cavity is clamped with the clamping groove through the clamping block, and can be quickly fixed, so that it does not need to be installed by turning the bolts multiple times, which is more convenient, quick, time-saving and labor-saving.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, in particular to an injection mold with quickly detachable inserts. Background Art

[0002] An injection mold is a tool used to produce plastic products. It consists of multiple parts. By heating the plastic and applying pressure in the mold, the plastic material is injected into the mold to form the desired product shape. When using the injection mold, due to long-term operation and continuous injection of plastic material, some parts of the mold may be worn or accumulate plastic residues and need maintenance or replacement. These parts are usually called quick-release inserts.

[0003] The mold cavity is one of the inserts of the injection mold. It determines the final shape and size of the plastic product during the injection molding operation. However, it may be worn due to frequent use, so it needs regular inspection and maintenance. In some existing technologies, the mold cavity is generally fixed to the injection mold equipment by bolts. When disassembling, installing and maintaining it, it is necessary to turn the bolts one by one for a long time before it can be removed for operation. During installation, it is also necessary to turn the bolts to complete it, which is rather cumbersome. Therefore, in view of the above problems, an injection mold with a quick-detachable insert is proposed. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides an injection mold with a quick-detachable insert, which solves the problem of the prior art that it is troublesome to disassemble and install the mold cavity.

[0005] To achieve the above object, the utility model provides the following technical solution: an injection mold with a quick-detachable insert, comprising a workbench, a top outer wall of the workbench is provided with a guide groove, a top outer wall of the workbench is detachably provided with a mold cavity, and an inner wall of the workbench is provided with a quick-detachment mechanism;

[0006] The quick-release mechanism includes a fixed plate, the outer wall of the fixed plate is elastically connected to a splint via a telescopic spring, the outer wall of the splint is fixedly connected to a clamping block, the bottom outer wall of the splint is fixedly connected to a slider A, the bottom outer wall of the splint is fixedly connected to a slider B, the outer wall of the slider B is hinged to a moving rod via a connecting rod, the outer wall of the moving rod is provided with a clamping groove A, the top outer wall of the workbench is fixedly connected to a stopper, the front inner wall of the workbench is slidably connected to a pull rod, the inner wall of the pull rod is elastically connected to a wedge via a connecting spring, the outer wall of the pull rod is fixedly connected to a limiting block A, and the outer wall of the pull rod is fixedly connected to a limiting block B.

[0007] Preferably, a groove is formed on the outer wall of the mold cavity, the fixing plate is fixedly connected to the top outer wall of the workbench, and the clamping block is clamped in the groove.

[0008] Preferably, the slider A and the slider B are both slidably connected to the inner wall of the guide groove, and the limit block A is engaged with the clamping groove A.

[0009] Preferably, one end of the telescopic spring is fixedly connected to the outer wall of the clamping plate, and the other end of the telescopic spring is fixedly connected to the outer wall of the fixing plate.

[0010] Preferably, one end of the connecting spring is fixedly connected to the outer wall of the wedge block, and the other end of the connecting spring is fixedly connected to the inner wall of the pull rod. The outer wall of the wedge block is slidably connected to the inner wall of the pull rod, and the wedge block is in contact with the stopper.

[0011] Preferably, the inner wall of the workbench is elastically connected to a cross bar through a reset spring, a slot B is provided on the outer wall of the cross bar, a triangular block is fixedly connected to the outer wall of the cross bar, a fixed rod is slidably connected to the outer wall of the triangular block, a movable plate is fixedly connected to the top outer wall of the fixed rod, and a protrusion is fixedly connected to the top outer wall of the movable plate.

[0012] Preferably, one end of the return spring is fixedly connected to the outer wall of the cross bar, and the other end of the return spring is fixedly connected to the inner wall of the workbench, and the outer wall of the cross bar is slidably connected to the inner wall of the workbench.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model moves the pull rod upward, the limit block A is engaged with the slot A, and then the pull rod is pushed, and the two sets of clamps can be driven to move to both sides at the same time through the connecting rod, so that the limit of the mold cavity can be released, and the mold cavity can be removed for replacement. The replaced mold cavity is engaged with the slot through the block, and can be quickly fixed, so there is no need to install by turning the bolts multiple times, which is more convenient, quick, time-saving and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the workbench section, quick-release mechanism, and mold cavity after decomposition of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the mobile rod, connecting rod and clamping plate of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the crossbar, triangular block and movable plate of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the utility model after the stopper and the pull rod are exploded;

[0020] Figure 6This is a schematic diagram of the structure of the workbench and mold cavity after cross-section decomposition of the utility model.

[0021] In the figure: 1. workbench; 2. quick release mechanism; 201. fixed plate; 202. telescopic spring; 203. clamping plate; 204. block; 205. stopper; 206. pull rod; 207. connecting rod; 208. slider A; 209. moving rod; 210. slot A; 211. connecting spring; 212. wedge block; 213. limit block A; 214. limit block B; 215. slider B; 3. mold cavity; 4. guide groove; 5. groove; 6. reset spring; 7. moving plate; 8. protrusion; 9. fixed rod; 10. triangle block; 11. cross bar; 12. slot B. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figures 1 to 5 As shown, the utility model provides an injection mold with a quick-detachable insert, including a workbench 1, a guide groove 4 is provided on the top outer wall of the workbench 1, a mold cavity 3 is detachably installed on the top outer wall of the workbench 1, a quick-detachment mechanism 2 is provided on the inner wall of the workbench 1, and the quick-detachment mechanism 2 includes a fixed plate 201, an outer wall of the fixed plate 201 is elastically connected to a clamping plate 203 through a telescopic spring 202, an outer wall of the clamping plate 203 is fixedly connected to a clamping block 204, a bottom outer wall of the clamping plate 203 is fixedly connected to a slider A208, and the clamping plate 203 The bottom outer wall is fixedly connected with a slider B215, the outer wall of the slider B215 is hinged with a moving rod 209 through a connecting rod 207, the outer wall of the moving rod 209 is provided with a slot A210, the top outer wall of the workbench 1 is fixedly connected with a stopper 205, the front inner wall of the workbench 1 is slidably connected with a pull rod 206, the inner wall of the pull rod 206 is elastically connected with a wedge block 212 through a connecting spring 211, the outer wall of the pull rod 206 is fixedly connected with a limiting block A213, and the outer wall of the pull rod 206 is fixedly connected with a limiting block B214.

[0024] The above scheme is adopted: injection molding operation can be carried out through the workbench 1 and the mold cavity 3 installed thereon. The mold cavity 3 is the existing technology, which determines the final shape and size of the plastic product. According to different specifications, different mold cavities 3 can be quickly replaced through the quick-release mechanism 2; two groups of telescopic springs 202 and splints 203 are provided, which are symmetrically distributed on the outer walls on both sides of the workbench 1. When not affected by external forces, the telescopic springs 202 keep the two groups of splints 203 moving toward the middle due to their own elastic force, and contact the outer walls on both sides of the mold cavity 3. The clamping block 204 is clamped with the groove 5, and the mold cavity 3 can be fixed and installed; when the mold cavity 3 needs to be removed for replacement, the pull rod 206 can be moved upward, the limit block A213 is clamped with the clamping groove A210, and the pull rod 206 is pushed to drive the moving rod 209 to move. By flipping the connecting rod 207, the two groups of splints 203 can be driven to move to both sides at the same time, the limit of the mold cavity 3 is released, and the mold cavity 3 is taken out for replacement.

[0025] like Figures 1 to 5 As shown, a groove 5 is provided on the outer wall of the mold cavity 3, the fixed plate 201 is fixedly connected to the outer wall of the top end of the workbench 1, the clamping block 204 is clamped with the groove 5, the slider A208 and the slider B215 are both slidably connected to the inner wall of the guide groove 4, the limit block A213 is clamped with the clamping groove A210, one end of the telescopic spring 202 is fixedly connected to the outer wall of the clamping plate 203, the other end of the telescopic spring 202 is fixedly connected to the outer wall of the fixed plate 201, one end of the connecting spring 211 is fixedly connected to the outer wall of the wedge block 212, the other end of the connecting spring 211 is fixedly connected to the inner wall of the pull rod 206, the outer wall of the wedge block 212 is slidably connected to the inner wall of the pull rod 206, and the wedge block 212 is in contact with the stop block 205.

[0026] The above scheme is adopted: two groups of grooves 5 are arranged, which are symmetrically opened on the outer walls of both sides of the mold cavity 3, and the grooves 5 are adapted to the clamping block 204. When the two are clamped, the mold cavity 3 can be fixed; when the push rod 206 drives the connecting rod 207 to flip, the guide groove 4 guides the slider A208 and the slider B215, so that the slider A208 and the slider B215 can only move laterally along the inner wall of the guide groove 4, so that the clamping plate 203 can maintain the state of lateral movement, and when the push rod 206 stops, the elastic force of the telescopic spring 202 drives the two groups of clamping plates 203 to move toward the middle, so that the mold cavity 3 can be clamped and fixed; when it is necessary to push the pull rod 206 to drive the moving rod 209 to move, the pull rod 206 can be pulled upward, and the straight surface of the wedge block 212 contacts the outer wall of the top end of the block 205. At this time, the limit block A213 maintains the state of contact with the clamping groove A210, and the pull rod 206 can be pushed to drive the moving rod 209 to move synchronously.

[0027] like Figures 4 to 6As shown, the inner wall of the workbench 1 is elastically connected to the cross bar 11 through the reset spring 6, the outer wall of the cross bar 11 is provided with a slot B12, the outer wall of the cross bar 11 is fixedly connected to the triangular block 10, the outer wall of the triangular block 10 is slidably connected to the fixed rod 9, the top outer wall of the fixed rod 9 is fixedly connected to the movable plate 7, the top outer wall of the movable plate 7 is fixedly connected to the protrusion 8, one end of the reset spring 6 is fixedly connected to the outer wall of the cross bar 11, the other end of the reset spring 6 is fixedly connected to the inner wall of the workbench 1, and the outer wall of the cross bar 11 is slidably connected to the inner wall of the workbench 1.

[0028] The above scheme is adopted: when not affected by external forces, the top outer wall of the protrusion 8 is flush with the bottom inner wall of the mold groove in the mold cavity 3; a partition is set in the middle of the stopper 205, and by pressing the wedge block 212, the wedge block 212 moves inward along the inner wall of the pull rod 206, and the connecting spring 211 is forced to shrink, and the wedge block 212 is out of contact with the top outer wall of the stopper 205, and the pull rod 206 can be moved downward. During the movement, the wedge block 212 is ejected due to the elastic force of the connecting spring 211 and contacts the partition in the middle of the stopper 205. At this time, the limit block B214 is engaged with the slot B12. , and then when the pull rod 206 is pushed, the cross bar 11 can be driven to move, and the reset spring 6 is forced to shrink, pushing the triangular block 10 to move, so that the fixed rod 9 moves along the bottom end of the inclined surface of the triangular block 10 to the top end of the inclined surface, and moves upward, driving the movable plate 7 to move upward, and the protrusion 8 can eject the cooled plastic product in the mold groove on the mold cavity 3, thereby achieving a blanking effect; after the blanking is completed, the reset spring 6 drives the cross bar 11 to move in the opposite direction and reset due to its own elastic force, and the fixed rod 9 moves along the top end of the inclined surface of the triangular block 10 to the bottom end, so that the movable plate 7 and the protrusion 8 move downward at the same time, and the molding operation can be performed again.

[0029] The working principle and use process of this utility model:

[0030] When the mold cavity 3 needs to be installed, the operator can first pull the pull rod 206 upward to make the limit block A213 engage with the slot A210. At this time, the straight surface of the wedge block 212 contacts the top outer wall of the stop block 205 to support the pull rod 206. Then the pull rod 206 is pushed to drive the moving rod 209 to move at the same time. The moving rod 209 is turned over by the two sets of connecting rods 207 to drive the slider A208 and the slider B215 to move along the inner wall of the guide groove 4, thereby driving the two sets of clamps 203 to move to both sides, and the telescopic spring 202 is contracted by force. After the mold cavity 3 is contracted, the mold cavity 3 can be placed on the workbench 1 so that the grooves 5 on both sides of the mold cavity 3 correspond to the positions of the clamping blocks 204, and then the pushing of the pull rod 206 is stopped. Due to the elastic force of the telescopic spring 202, the two sets of clamps 203 are driven to move toward the middle at the same time, so that the clamping blocks 204 are clamped with the grooves 5, and the mold cavity 3 can be fixed. When the mold cavity 3 needs to be replaced, the above steps can be repeated to move the clamps 203 to both sides, so that the mold cavity 3 can be replaced conveniently and quickly, and there is no need to disassemble and install through existing technologies such as bolts, which saves time and effort.

[0031] After the mold cavity 3 is fixed, injection molding can be performed on the mold cavity 3 and the mold is produced by a compression molding device. When the plastic product in the mold cavity 3 is cooled, the wedge block 212 can be pressed, and the wedge block 212 moves inward along the inner wall of the pull rod 206. The connecting spring 211 is forced to shrink, and the wedge block 212 is out of contact with the outer wall of the stop block 205, and the pull rod 206 is moved downward. When it moves to the limit block B214 and is engaged with the slot B12, the wedge block 212 pops out due to the elastic force of the connecting spring 211 itself, and the straight surface of the wedge block 212 contacts the middle partition of the stop block 205 to support the pull rod 206. At this time, the pull rod 206 is pushed to drive the cross bar 11 to move synchronously , the return spring 6 is forced to shrink, the triangular block 10 moves with the cross bar 11, and squeezes the fixed rod 9, so that it moves along the bottom end of the inclined surface of the triangular block 10 to the top, and drives the movable plate 7 to move upward, and the protrusion 8 moves accordingly and can eject the plastic product in the mold groove on the mold cavity 3, thereby completing the unloading operation. After the unloading is completed, the pull rod 206 is released. Due to the elastic force of the return spring 6, the cross bar 11 moves in the opposite direction and resets, the movable plate 7 moves downward, and the top of the protrusion 8 is flush with the inner wall of the bottom end of the mold groove, and the next injection molding operation can be carried out. Through the above steps, unloading can be carried out more conveniently, and the operator does not need to take out the injection molded products one by one, thereby improving work efficiency.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold with a quick-detachable insert, comprising a workbench (1), characterized in that: The top outer wall of the workbench (1) is provided with a guide groove (4), the top outer wall of the workbench (1) is detachably provided with a mold cavity (3), and the inner wall of the workbench (1) is provided with a quick-release mechanism (2); The quick release mechanism (2) comprises a fixed plate (201), the outer wall of the fixed plate (201) is elastically connected to a clamping plate (203) via a telescopic spring (202), the outer wall of the clamping plate (203) is fixedly connected to a clamping block (204), the outer wall of the bottom end of the clamping plate (203) is fixedly connected to a slider A (208), the outer wall of the bottom end of the clamping plate (203) is fixedly connected to a slider B (215), and the outer wall of the slider B (215) is hinged to a moving rod (208) via a connecting rod (207). 9), a slot A (210) is provided on the outer wall of the movable rod (209), a stopper (205) is fixedly connected to the outer wall of the top end of the workbench (1), a pull rod (206) is slidably connected to the inner wall of the front end of the workbench (1), the inner wall of the pull rod (206) is elastically connected to a wedge block (212) via a connecting spring (211), the outer wall of the pull rod (206) is fixedly connected to a limit block A (213), and the outer wall of the pull rod (206) is fixedly connected to a limit block B (214).

2. The injection mold with a quick-detachable insert according to claim 1, characterized in that: The outer wall of the mold cavity (3) is provided with a groove (5), the fixing plate (201) is fixedly connected to the top outer wall of the workbench (1), and the clamping block (204) is clamped with the groove (5).

3. The injection mold with a quick-detachable insert according to claim 1, characterized in that: The slider A (208) and the slider B (215) are both slidably connected to the inner wall of the guide groove (4), and the limit block A (213) is clamped to the clamping groove A (210).

4. The injection mold with a quick-detachable insert according to claim 1, characterized in that: One end of the telescopic spring (202) is fixedly connected to the outer wall of the clamping plate (203), and the other end of the telescopic spring (202) is fixedly connected to the outer wall of the fixed plate (201).

5. The injection mold with a quick-detachable insert according to claim 1, characterized in that: One end of the connecting spring (211) is fixedly connected to the outer wall of the wedge block (212), and the other end of the connecting spring (211) is fixedly connected to the inner wall of the pull rod (206). The outer wall of the wedge block (212) is slidably connected to the inner wall of the pull rod (206), and the wedge block (212) is in contact with the stop block (205).

6. The injection mold with a quick-detachable insert according to claim 1, characterized in that: The inner wall of the workbench (1) is elastically connected to a cross bar (11) via a return spring (6); a slot B (12) is provided on the outer wall of the cross bar (11); a triangular block (10) is fixedly connected to the outer wall of the cross bar (11); a fixed rod (9) is slidably connected to the outer wall of the triangular block (10); a movable plate (7) is fixedly connected to the top outer wall of the fixed rod (9); and a protrusion (8) is fixedly connected to the top outer wall of the movable plate (7).

7. The injection mold with a quick-detachable insert according to claim 6, characterized in that: One end of the return spring (6) is fixedly connected to the outer wall of the cross bar (11), and the other end of the return spring (6) is fixedly connected to the inner wall of the workbench (1), and the outer wall of the cross bar (11) is slidably connected to the inner wall of the workbench (1).

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