Structure for automatically cutting off glue inlet through three-time injection molding
By designing automatic cutting and demolding components, using mechanical components such as racks, gears and cutting knives, the problem of low efficiency of manual cutting of glue inlets in existing injection molds is solved, automatic cutting and demolding is achieved, and injection molding efficiency is improved and cut-off effect.
Patent Information
- Application Number
- CN202421090103.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-20
AI Technical Summary
Existing injection molds require manual operation during the glue inlet removal process, resulting in insufficiency of injection molding.
A structure for automatic removal of the inlet of the three injection molding is designed, including cutting components and demolding components, using mechanical components such as racks, gears, slide rods and cutting knives to realize automatic removal of the inlet and automatic removal of the mold. mold.
The glue inlet is automatically cut after injection molding, which improves the injection molding efficiency, and shocks the debris through the spring, improving the cutting effect and the accuracy of the next cut.
Smart Images
Figure CN222271131U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of three-time injection molding automatic cutting glue inlet, in particular to a three-time injection molding automatic cutting glue inlet structure. Background Art
[0002] An injection mold is a tool for producing plastic products; it is also a tool that gives plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the high-pressure injection of heated and melted plastic into the mold cavity by an injection molding machine. After cooling and solidification, a molded product is obtained. The three-shot injection mold drives the rotating mold core to rotate through the rotating shaft so that the rotating cavities of the three mold core cavities can be injected multiple times. After the three injections are completed, the excess part at the glue inlet needs to be cut off.
[0003] When cutting the glue inlet of the existing injection mold, it needs to be cut manually, which consumes manpower and time and affects the overall injection efficiency.
[0004] Therefore, we propose a structure for automatically cutting off the glue inlet of the product after the injection molding of the product is completed, so as to improve the injection molding efficiency. Utility Model Content
[0005] The utility model aims to provide a structure for automatically cutting off a glue inlet during three-time injection molding, so as to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a structure for automatically cutting off a glue inlet during three-time injection molding, comprising a placing plate, a supporting leg fixedly installed at the bottom of the placing plate, a top plate arranged above the placing plate, a sliding rod arranged inside the top plate, a telescopic rod fixedly installed at the bottom of the top plate, a glue inlet arranged inside the top plate, and a processing component arranged above the top surface of the placing plate, the processing component comprising a cutting component arranged on the top surface of the placing plate, and a demolding component arranged below the cutting component.
[0007] Preferably, the cutting assembly includes an upper mold arranged on the outer wall of the sliding rod, a first rack is fixedly mounted on the outer wall of the upper mold, the first rack is meshed with a gear, a rotating rod is sleeved inside the gear, a fixed plate is rotatably connected to the end of the rotating rod, a limiting block is fixedly mounted on the inner side of the fixed plate, the gear is meshed with a second rack, a limiting groove is provided inside the second rack, a first sliding groove is provided at the end of the second rack, a first slider is slidably arranged inside the first sliding groove, a cutting knife is fixedly mounted on the outer wall of the first slider, a spring is fixedly mounted on the outer wall of the first slider, and a lower mold is arranged below the upper mold.
[0008] Preferably, the demoulding assembly includes a fixed block fixedly mounted on the top surface of the placing plate, a second slider is provided on the inner side of the fixed block, a second slider is fixedly mounted on the outer wall of the second slider, a bottom plate is slidably mounted on the outer wall of the second slider, a second slide groove is provided on the outer wall of the bottom plate, and a handle is fixedly mounted on the outer wall of the bottom plate.
[0009] Preferably, the limiting groove opened inside the second rack is slidably arranged with the limiting block fixedly installed on the inner side of the fixed plate, and the first sliding block is slidably arranged inside the first sliding groove, so that the second rack moves more stably when the gear is meshed with the second rack.
[0010] Preferably, the gear is meshed with the first rack, and the gear is meshed with the second rack. The first rack and the second rack are staggered so that when the first rack moves up and down, the second rack also moves accordingly.
[0011] Preferably, the second sliding block fixedly mounted on the outer wall of the fixed block is slidably arranged with the second sliding groove provided on the outer wall of the bottom plate, so that when the bottom plate slides, the sliding is more stable and convenient under the limitation of the second sliding block.
[0012] Preferably, the bottom plate and the fixed block are configured to slide in a sealed manner, and the top surface of the bottom plate slides in a sealed manner with the interior of the lower mold, so as to avoid colloid leakage during injection molding.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. The structure of the three-time injection automatic cutting glue inlet is composed of a cutting component as one component. When the injection molding work is completed, the connection between the glue inlet and the product needs to be cut off. When the injection molding is completed, the upper mold starts to move upward under the action of the telescopic rod. When the upper mold moves, the first rack fixedly installed on its outer wall also moves accordingly. When the first rack moves, the gear meshing with it starts to rotate. When the gear rotates, the second rack meshing with the gear staggeredly also moves accordingly. The second rack drives the cutting knife arranged inside it to move toward the glue inlet. Due to the sliding arrangement of the limit groove opened inside the second rack and the limit block fixedly installed on the inner side of the fixed plate, the movement of the second rack is more stable. When the two cutting knives move toward each other and contact the glue inlet, when the upper mold continues to move upward, the two cutting knives cut off the glue inlet. After cutting, the product is taken out and injection molding is performed again. When the upper mold moves downward, the first rack also moves accordingly, causing the gear to rotate, causing the second rack meshing with it to move in the opposite direction, so that the upper mold and the lower mold cooperate with each other to perform injection molding. When the cutting knife finishes cutting the glue inlet, the cutting knife, under the action of the spring elasticity, causes the first slider fixedly installed on the outer wall of the cutting knife to slide inside the first slide groove, producing a polarization effect, and shaking off the debris attached to the outer wall of the cutting knife, thereby improving the effect of the next cutting.
[0015] 2. The structure of the three-shot automatic cutting-off of the glue inlet is composed of a demoulding component as one of its components. When the mold after injection molding needs to be demoulded, the handle is pulled to make the second slide groove provided on the outer wall of the bottom plate slide on the outer wall of the second slider fixedly installed on the outer wall of the fixed block, so that the product on the top surface of the bottom plate is demoulded from the inside of the upper mold and the lower mold. When the demoulding is completed, the bottom plate is pushed to its original position for the next injection molding. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a three-dimensional appearance diagram of the structure of the utility model.
[0017] Figure 2 It is a three-dimensional cross-sectional view of the structure of the utility model.
[0018] Figure 3 This is a diagram of the components cut out of the structure of the utility model.
[0019] Figure 4 This is an exploded schematic diagram of the cutout components of the structure of the utility model.
[0020] Figure 5 This is a diagram of the demoulding components of the structure of the utility model.
[0021] Figure 6 It is a partial schematic diagram of the structural demoulding component of the utility model.
[0022] In the figure: 1. placement plate; 2. support leg; 3. glue inlet; 4. telescopic rod; 5. slide rod; 6. top plate; 7. processing assembly; 71. cutting assembly; 73. demoulding assembly; 711. upper mold; 712. first rack; 713. gear; 714. rotating rod; 715. fixed plate; 716. limit block; 717. second rack; 718. limit groove; 719. first slide groove; 720. first slide block; 721. spring; 722. cutting knife; 723. lower mold; 731. fixed block; 732. second slide groove; 733. handle; 734. bottom plate; 735. second slide block. DETAILED DESCRIPTION
[0023] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.
[0024] Example 1
[0025] A preferred embodiment of the structure of the three-time injection molding automatic cutting-off glue inlet provided by the utility model is as follows: Figures 1 to 6 As shown: a structure for automatically cutting off the glue inlet during three-shot injection molding, comprising a placement plate 1;
[0026] A supporting leg 2 is fixedly installed at the bottom of the placement plate 1;
[0027] A top plate 6 is arranged above the placement plate 1;
[0028] A slide bar 5 is arranged inside the top plate 6;
[0029] A telescopic rod 4 is fixedly mounted on the bottom of the top plate 6;
[0030] A glue inlet 3 is provided inside the top plate 6;
[0031] And a processing component 7 arranged above the top surface of the placement plate 1, the processing component 7 includes a cutting component 71 arranged on the top surface of the placement plate 1, the cutting component 71 includes an upper mold 711 arranged on the outer wall of the slide bar 5, a first rack 712 is fixedly installed on the outer wall of the upper mold 711, the first rack 712 is meshed with a gear 713, a rotating rod 714 is sleeved inside the gear 713, a fixed plate 715 is rotatably connected to the end of the rotating rod 714, a limiting block 716 is fixedly installed on the inner side of the fixed plate 715, a second rack 717 is meshed with the gear 713, a limiting groove 718 is provided inside the second rack 717, a first slide groove 719 is provided at the end of the second rack 717, a first slide groove 719 is slidably provided inside the first slide groove 719, a cutting knife 722 is fixedly installed on the outer wall of the first slide block 720, a spring 721 is fixedly installed on the outer wall of the first slide block 720, and a lower mold 723 is arranged below the upper mold 711.
[0032] In this embodiment, when the injection molding work is completed, it is necessary to cut off the connection between the glue inlet and the product. After the injection molding is completed, the upper mold 711 begins to move upward under the action of the telescopic rod 4. When the upper mold 711 moves, the first rack 712 fixedly installed on its outer wall also moves accordingly. When the first rack 712 moves, the gear 713 meshing with it begins to rotate. When the gear 713 rotates, the second rack 717 meshing with the gear 713 also moves accordingly. The second rack 717 drives the cutting knife 722 arranged inside it to move toward the glue inlet. Due to the sliding arrangement of the limiting groove 718 opened inside the second rack 717 and the limiting block 716 fixedly installed on the inner side of the fixing plate 715, the movement of the second rack 717 is more stable. When the two cutting knives 722 face each other, When the upper mold 711 moves downward, the first rack 712 also moves, causing the gear 713 to rotate, causing the second rack 717 meshing with it to move in the opposite direction, so that the upper mold 711 and the lower mold 723 cooperate with each other to perform injection molding. When the cutting knife 722 has cut off the glue inlet, the cutting knife 722, under the elastic action of the spring 721, causes the first slider 720 fixedly installed on the outer wall of the cutting knife 722 to slide inside the first slide groove 719, thereby producing a polarization effect, and shaking off the debris attached to the outer wall of the cutting knife 722, thereby improving the effect of the next cutting.
[0033] Furthermore, the limiting groove 718 opened inside the second rack 717 is slidably arranged with the limiting block 716 fixedly installed on the inner side of the fixed plate 715, and the first slider 720 is slidably arranged inside the first sliding groove 719, so that the second rack 717 moves more stably when the gear 713 is engaged with the second rack 717.
[0034] Furthermore, the gear 713 is meshed with the first rack 712, and the gear 713 is meshed with the second rack 717. The first rack 712 and the second rack 717 are staggered so that when the first rack 712 moves up and down, the second rack 717 also moves accordingly.
[0035] Example 2
[0036] On the basis of Example 1, a preferred embodiment of a structure for automatically cutting off the glue inlet of three-time injection molding provided by the utility model is as follows Figures 1 to 6As shown: the demoulding component 73 includes a fixed block 731 fixedly installed on the top surface of the placement plate 1, a second slider 735 is provided on the inner side of the fixed block 731, a second slider 735 is fixedly installed on the outer wall of the second slider 735, a bottom plate 734 is slidably provided on the outer wall of the second slider 735, a second slide groove 732 is provided on the outer wall of the bottom plate 734, and a handle 733 is fixedly installed on the outer wall of the bottom plate 734.
[0037] In this embodiment, when it is necessary to demold the mold after injection molding, pull the handle 733 to make the second slide groove 732 opened on the outer wall of the bottom plate 734 slide on the outer wall of the second slider 735 fixedly installed on the outer wall of the fixed block 731, so that the product on the top surface of the bottom plate 734 is demolded from the inside of the upper mold 711 and the lower mold 723. When demolding is completed, the bottom plate 734 is pushed to its original position for the next injection molding work.
[0038] Furthermore, a second sliding block 735 fixedly installed on the outer wall of the fixed block 731 is slidably arranged with a second sliding groove 732 opened on the outer wall of the bottom plate 734, so that when the bottom plate 734 slides, the sliding is more stable and convenient under the limitation of the second sliding block 735.
[0039] In addition, the bottom plate 734 and the fixed block 731 are sealed and slidably arranged, and the top surface of the bottom plate 734 and the interior of the lower mold 723 are sealed and slidably arranged to prevent colloid leakage during injection molding.
[0040] The above is only an illustrative specific implementation method of the utility model, and is not intended to limit the scope of the utility model. Any equivalent changes and modifications made by any technician in this field without departing from the concept and principle of the utility model should fall within the scope of protection of the utility model. It should also be noted that the various components of the utility model are not limited to the above-mentioned overall application. The various technical features described in the specification of the utility model can be selected one by one or multiple ones can be selected and used in combination according to actual needs. Therefore, the utility model should naturally cover other combinations and specific applications related to the utility model points of this case.
Claims
1. A structure for automatically cutting off a glue inlet during three-shot injection molding, comprising a placement plate (1); A supporting leg (2) is fixedly mounted on the bottom of the placement plate (1); A top plate (6) is arranged above the placement plate (1); A sliding rod (5) is arranged inside the top plate (6); A telescopic rod (4) is fixedly mounted on the bottom of the top plate (6); The top plate (6) is provided with a glue inlet (3) inside; and a processing assembly (7) disposed above the top surface of the placement plate (1), characterized in that: The processing assembly (7) comprises a cutting assembly (71) arranged on the top surface of the placement plate (1), and a demoulding assembly (73) is arranged below the cutting assembly (71).
2. The structure of the three-shot injection molding automatic cutting-off glue inlet according to claim 1 is characterized by: The cutting assembly (71) comprises an upper mold (711) arranged on the outer wall of the sliding rod (5), the outer wall of the upper mold (711) is fixedly mounted with a first rack (712), the first rack (712) is meshed with a gear (713), a rotating rod (714) is sleeved inside the gear (713), the end of the rotating rod (714) is rotatably connected to a fixed plate (715), a limiting block (716) is fixedly mounted on the inner side of the fixed plate (715), and the gear (713) is meshed with a A second rack (717), a limiting groove (718) is provided inside the second rack (717), a first sliding groove (719) is provided at the end of the second rack (717), a first slider (720) is slidably arranged inside the first sliding groove (719), a cutting knife (722) is fixedly installed on the outer wall of the first slider (720), a spring (721) is fixedly installed on the outer wall of the first slider (720), and a lower mold (723) is arranged below the upper mold (711).
3. The structure of automatic cutting of the glue inlet for three-shot injection molding according to claim 1 is characterized by: The demoulding assembly (73) comprises a fixed block (731) fixedly mounted on the top surface of the placement plate (1); a second slider (735) is provided on the inner side of the fixed block (731); a second slider (735) is fixedly mounted on the outer wall of the second slider (735); a bottom plate (734) is slidably mounted on the outer wall of the second slider (735); a second slide groove (732) is provided on the outer wall of the bottom plate (734); and a handle (733) is fixedly mounted on the outer wall of the bottom plate (734).
4. The structure of automatic cutting of the glue inlet for three-shot injection molding according to claim 2 is characterized by: The limiting groove (718) provided inside the second rack (717) is slidably arranged with the limiting block (716) fixedly installed inside the fixed plate (715), and the first sliding block (720) is slidably arranged inside the first sliding groove (719).
5. The structure of automatic cutting of the glue inlet for three-shot injection molding according to claim 2 is characterized by: The gear (713) is meshed with the first rack (712), the gear (713) is meshed with the second rack (717), and the first rack (712) and the second rack (717) are arranged in an alternating manner.
6. The structure of automatic cutting of the glue inlet for three-shot injection molding according to claim 3 is characterized by: A second sliding block (735) fixedly mounted on the outer wall of the fixed block (731) is slidably arranged with a second sliding groove (732) provided on the outer wall of the bottom plate (734).
7. The structure of automatic cutting of the glue inlet for three-shot injection molding according to claim 3 is characterized by: The bottom plate (734) and the fixed block (731) are arranged to slide in a sealed manner, and the top surface of the bottom plate (734) slides in a sealed manner with the interior of the lower mold (723).