Clamping device of injection mold

Abstract

The clamping device comprises a lifting support, a pneumatic connecting structure and a clamping seat, one end of the pneumatic connecting structure is connected to the upper end of the lifting support, the clamping seat is rotatably connected to the upper end of the other end of the pneumatic connecting structure, and the clamping seat comprises a rectangular frame, a movable plate and a clamping spring. A through stepped groove is formed in the middle of the rectangular frame, two through guide holes are formed in the side face of the stepped groove, two guide columns are arranged on the side face of the movable plate and slidably connected with the two guide holes respectively, the movable plate is located in the rectangular frame, the clamping spring is elastically connected between the movable plate and the stepped groove, and a bearing part is arranged on the side face of the movable plate. And the bearing part and the stepped groove jointly form a concentric-square-shaped bearing structure. Compared with the mode that the injection mold is clamped manually through a clamp, the device is more stable, the efficiency is higher when the injection mold is assembled and disassembled, and the safety is better.

Description

Technical Field

[0001] The utility model relates to the technical field of disassembly and assembly of injection molds, in particular to a clamping device for injection molds. Background Art

[0002] Injection molding is a method for producing industrial products. During the operation of injection molding equipment, the injection mold often needs to be disassembled, replaced, or cleaned to meet the production requirements of different injection molded products. The disassembly and assembly of the injection mold requires two people to work together. One person holds the mold with a clamp, while the other uses tools to remove the locking screws and other connectors on the mold to remove the mold. During this process, due to the lack of stability of manually clamping the mold, if the worker cannot hold the clamp steadily after the mold is removed, there is a risk of the mold falling. The high temperature of the injection mold poses a threat to the safety of the workers. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a clamping device for an injection mold which is more stable, more efficient when assembling and disassembling the injection mold, and has better safety.

[0004] The technical solution of the present utility model is: a clamping device for an injection mold, comprising a lifting bracket, a pneumatic connecting structure and a clamping seat, one end of the pneumatic connecting structure is connected to the upper end of the lifting bracket, and the clamping seat can be rotatably connected to the upper end of the other end of the pneumatic connecting structure, the clamping seat comprises a rectangular frame, a movable plate and a clamping spring, a through step groove is provided in the middle of the rectangular frame, two through guide holes are provided on the side of the step groove, two guide columns are provided on the side of the movable plate, the two guide columns are respectively slidably connected to the two guide holes, the movable plate is located in the rectangular frame, the clamping spring is elastically connected between the movable plate and the step groove, a receiving portion is provided on the side of the movable plate, and the receiving portion and the step groove together form a circular receiving structure.

[0005] Furthermore, a limit block is provided at the end of the guide column.

[0006] Furthermore, the pneumatic connection structure includes a first adapter block, a connecting rod, a pneumatic spring and a second adapter block. The two ends of the connecting rod are respectively hinged to the first adapter block and the second adapter block, and the two ends of the pneumatic spring are respectively hinged to the first adapter block and the second adapter block. The connecting rod and the pneumatic spring are parallel to each other. The first adapter block is connected to the upper end of the lifting bracket, and the rectangular frame is rotatably connected to the upper end of the second adapter block.

[0007] Furthermore, the second adapter block is provided with a threaded hole, and the rectangular frame is provided with a through hole. The rectangular frame and the second adapter block can be connected by screws, and the screws pass through the through holes and are screwed into the threaded holes.

[0008] Furthermore, the lifting bracket includes a base plate, a support rod and a lifting rod. The support rod is connected to the base plate. The middle of the support rod is a sliding hole. The lifting rod is slidably connected to the sliding hole. The lifting rod and the support rod can be connected and fixed by a wedge structure.

[0009] Furthermore, the wedge structure includes a plurality of wedges arranged in a circular array at the upper end of the support rod, and an external thread is provided on the side of the support rod at the lower end of the wedge, and a nut is connected to the external thread. The nut can move upward and abut the outer side of the wedge, and the wedge can abut the lifting rod inward.

[0010] Furthermore, a handle is provided in the middle of the lifting rod.

[0011] Furthermore, the sides of the nut, handle and screw are all provided with anti-slip structures.

[0012] Furthermore, two countersunk holes are provided on the bottom plate.

[0013] Compared with the existing technology, the advantages of the present invention are: when the injection mold is loaded and unloaded, the circular receiving structure can clamp the injection mold, provide assistance during installation, facilitate the alignment and assembly of the hole positions, and provide support during disassembly to prevent the injection mold from falling and injuring people; at the same time, the injection mold can be clamped and disassembled by this device, and the operation can be completed by a single person. Compared with the method of manually clamping the injection mold with a clamp, this device is more stable, more efficient when loading and unloading the injection mold, and safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is an exploded view of the utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0018] Figure 4 This is a schematic structural diagram of the second adapter of the utility model;

[0019] Figure 5 It is a schematic diagram of the circular receiving structure of the utility model.

[0020] Among them: 1. Base plate; 101. Countersunk hole; 2. Support rod; 201. Sliding hole; 3. Lifting rod; 4. Nut; 5. External thread; 6. Wedge; 7. Handle; 8. First adapter; 9. Connecting rod; 10. Pneumatic spring; 11. Second adapter; 1101. Threaded hole; 12. Rectangular frame; 1201. Through hole; 1202. Step groove; 1203. Guide hole; 13. Moving plate; 14. Spring; 15. Guide column; 16. Limit block; 17. Screw; 18. Ring-shaped supporting structure. DETAILED DESCRIPTION

[0021] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0022] like Figure 1-5 As shown, a clamping device for an injection mold includes a lifting bracket, a pneumatic connection structure and a clamping seat, one end of the pneumatic connection structure is connected to the upper end of the lifting bracket, and the clamping seat can be rotatably connected to the upper end of the other end of the pneumatic connection structure. The clamping seat includes a rectangular frame 12, a movable plate 13 and a clamping spring 14. A through-step groove 1202 is provided in the middle of the rectangular frame 12, two through-step guide holes 1203 are provided on the side of the stepped groove 1202, two guide columns 15 are provided on the side of the movable plate 13, and the two guide columns 15 are respectively slidably connected to the two guide holes 1203. The movable plate 13 is located in the rectangular frame 12, and the clamping spring 14 elastically Connected between the movable plate 13 and the stepped groove 1202, the movable plate 13 is provided with a receiving portion on the side, and the receiving portion and the stepped groove 1202 together form a circular receiving structure 18, in which the injection mold can be embedded; when the injection mold is loaded and unloaded, the circular receiving structure 18 can clamp the injection mold, provide assistance during installation, facilitate the alignment and assembly of the hole positions, and provide support during disassembly to prevent the injection mold from falling and injuring people; at the same time, the device can be used to clamp and disassemble the injection mold, and a single person can complete the operation. Compared with the method of manually clamping the injection mold with a clamp, the device is more stable, more efficient when loading and unloading the injection mold, and safer. The end of the guide column 15 is provided with a limit block 16 to prevent the guide column 15 from falling out of the guide hole 1203 under the action of the elastic force of the spring 14.

[0023] In the above embodiment, the pneumatic connection structure includes a first adapter block, a connecting rod 9, a pneumatic spring 1410 and a second adapter block. The two ends of the connecting rod 9 are respectively hinged to the first adapter block and the second adapter block, and the two ends of the pneumatic spring 1410 are respectively hinged to the first adapter block and the second adapter block. The connecting rod 9 and the pneumatic spring 1410 are parallel to each other. The first adapter block is connected to the upper end of the lifting bracket, and the rectangular frame 12 is rotatably connected to the upper end of the second adapter block; the connecting rod 9 can provide a large range of swing space for the pneumatic connection structure. Compared with the first adapter block, the range of movement of the second adapter block is The angle is between -60° and 60°, which can adapt to the height of the injection mold in the injection molding equipment; the pneumatic spring 1410 can provide stable support for the pneumatic connection structure when it swings. If a suitable type of pneumatic spring 1410 is selected, its supporting force can hold the injection mold. When the injection mold is completely removed, the clamp seat will not collapse due to the gravity of the injection mold or the impact force of falling, thereby ensuring the safety of the workers; under the joint action of the connecting rod 9 and the pneumatic spring 1410, the pneumatic connection structure can swing up and down freely and have sufficient supporting force to support the injection mold. The second adapter block is provided with a threaded hole 1101, and the rectangular frame 12 is provided with a through hole 1201. The rectangular frame 12 and the second adapter block can be connected by a screw 17, and the screw 17 passes through the through hole 1201 and is screwed into the threaded hole 1101; the rectangular frame 12 can be rotated and the angle can be adjusted to adapt to the layout of the injection molding equipment and the orientation of the injection mold. After adjusting to the appropriate angle, it is locked by the screw 17 to prevent the rectangular frame 12 from leaving the optimal position for receiving the injection mold.

[0024] In the above embodiment, the lifting bracket includes a base plate 1, a support rod 2, and a lifting rod 3. The support rod 2 is connected to the base plate 1. The middle portion of the support rod 2 has a sliding hole 201. The lifting rod 3 is slidably connected to the sliding hole 201. The lifting rod 3 and the support rod 2 are fixed by a wedge 6 structure. The lifting rod 3 can rotate freely within the sliding hole 201 and horizontally adjust the orientation of the pneumatic connection structure. Combined with the swing adjustment of the pneumatic connection structure and the rotation adjustment of the clamping seat, the device has a high degree of freedom, which can quickly and effectively adapt to the position of the injection mold. The wedge 6 structure includes a plurality of wedges 6 arranged in a circular array at the upper end of the support rod 2. The side surface of the support rod 2 at the lower end of the wedge 6 is provided with an external thread 5. The external thread 5 is connected to the nut 4. The nut 4 can move upward and abut the outer side of the wedge 6. The wedge 6 can also abut the lifting rod 3 inward. That is, when the nut 4 moves upward, the nut 4 tightens the plurality of wedges 6, and the plurality of wedges 6 deform and clamp the lifting rod 3 therebetween, thereby positioning it in height and direction. A handle 7 is provided in the middle of the lifting rod 3 for easy gripping and adjustment. The sides of the nut 4, handle 7, and screw 17 are all equipped with anti-slip structures for easy handheld operation. Two countersunk holes 101 are provided on the base plate 1 for easy mounting and fixing to the ground or other components.

[0025] Description of the working method of this utility model:

[0026] After the injection molding production is completed, it is necessary to remove the injection mold while it is still hot, so as to avoid it being difficult to remove under the influence of the plastic after cooling; the bottom plate 1 of the device is locked on a movable cart through the countersunk hole 101. The cart has fixed casters and can be moved to the side of the equipment for loading and unloading the injection mold and locked. By adjusting the lifting rod 3, the pneumatic connection structure is rotated horizontally to the side of the injection mold, and then the pneumatic connection structure is swung to bring the clamping seat close to the injection mold. The lower end of the clamping seat is supported by hand and the clamping seat is pushed upward against the injection mold. The movable plate 13 is opened and the spring 14 is compressed to clamp the injection mold into the circular receiving structure 18; after ensuring that the injection mold can be accurately embedded in the circular receiving structure 18, the pneumatic connection structure can be swung downward, and the position of the lifting rod 3 and the clamping seat can be re-fixed by the nut 4 and the screw 17, and then the pneumatic connection structure is swung upward again to embed the injection mold into the circular receiving structure 18. When removing the injection mold, the connector on the lower end face of the injection mold can be taken out from the stepped groove 1202, while the injection mold as a whole is firmly supported. After all the connectors are removed, if the injection mold does not fall under the action of gravity, a hammer is used to tap the side of the injection mold to make it fall naturally. After the injection mold falls, it is supported by the clamp seat, and the pneumatic connection structure is manually swung downward to transfer the mold. Similarly, when installing the injection mold, the injection mold can be clamped in the clamp seat. After the injection mold moves and rises to the installation position, it is manually locked. The entire process of installation and removal only requires one person to complete, saving labor. In addition, the use of this device is safe and reliable, and the mold is firmly clamped in the clamp seat and will not fall, eliminating safety hazards.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A clamping device for an injection mold, comprising a lifting bracket, a pneumatic connection structure, and a clamping seat, characterized in that: One end of the pneumatic connection structure is connected to the upper end of the lifting bracket, and the clamping seat can be rotatably connected to the upper end of the other end of the pneumatic connection structure. The clamping seat includes a rectangular frame, a movable plate and a clamping spring. A through step groove is provided in the middle of the rectangular frame, and two through guide holes are provided on the side of the step groove. Two guide columns are provided on the side of the movable plate, and the two guide columns are respectively slidably connected to the two guide holes. The movable plate is located in the rectangular frame, and the clamping spring is elastically connected between the movable plate and the step groove. A receiving portion is provided on the side of the movable plate, and the receiving portion and the step groove together form a circular receiving structure.

2. The clamping device for an injection mold according to claim 1, characterized in that: A limiting block is provided at the end of the guide column.

3. The clamping device for an injection mold according to claim 1, wherein: The pneumatic connection structure includes a first adapter block, a connecting rod, a pneumatic spring and a second adapter block. The two ends of the connecting rod are hinged to the first adapter block and the second adapter block respectively, and the two ends of the pneumatic spring are hinged to the first adapter block and the second adapter block respectively. The connecting rod and the pneumatic spring are parallel to each other. The first adapter block is connected to the upper end of the lifting bracket, and the rectangular frame is rotatably connected to the upper end of the second adapter block.

4. The clamping device for an injection mold according to claim 3, wherein: The second adapter block is provided with a threaded hole, and the rectangular frame is provided with a through hole. The rectangular frame and the second adapter block can be connected by screws, and the screws pass through the through holes and are screwed into the threaded holes.

5. The clamping device for an injection mold according to claim 4, characterized in that: The lifting bracket includes a base plate, a support rod and a lifting rod. The support rod is connected to the base plate. The middle part of the support rod is a sliding hole. The lifting rod is slidably connected to the sliding hole. The lifting rod and the support rod can be connected and fixed by a wedge structure.

6. The clamping device for an injection mold according to claim 5, characterized in that: Two countersunk holes are provided on the bottom plate.

7. The clamping device for an injection mold according to claim 5, characterized in that: The wedge structure includes a plurality of wedges arranged in a circular array at the upper end of the support rod. The side surface of the support rod at the lower end of the wedge is provided with an external thread, and a nut is connected to the external thread. The nut can move upward and abut the outer side of the wedge, and the wedge can abut the lifting rod inward.

8. The clamping device for an injection mold according to claim 7, characterized in that: A handle is provided in the middle of the lifting rod.

9. The clamping device for an injection mold according to claim 8, characterized in that: The sides of the nut, handle and screw are all provided with anti-slip structures.

Images