Jig for placing magnet for injection molding
By designing a fixture for placing injection molds for injection molding magnets, the problem of many production processes for injection molding forming magnets and the magnets being easily scrapped is solved, and the effect of simplifying production processes, improving production efficiency and reducing scrap rate is achieved.
Patent Information
- Application Number
- CN202420603318.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-03-27
AI Technical Summary
When injection molding the electronic water pump housing parts with magnets, the prior art has problems such as numerous production processes, long cycles, and difficulty in operating the magnet in the injection mold and easy to scrap.
A fixture for placing injection molding magnets is designed, including positioning modules, anti-error magnets and pressure rods. Through the anti-error container grooves and pressure holes of the positioning module, the cooperation of the anti-error magnets and the pressure rods ensures the correct placement of the magnetic magnets and push into the mold core position.
The production process of injection molded parts with magnets is simplified, the production efficiency is improved, the scrap rate of injection molded parts is reduced, and the problem of misplacement and scalding of magnets in injection molds is avoided.
Smart Images
Figure CN222662435U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electronic water pumps, in particular to a jig used for placing magnets in an injection mold when injection molding parts of an electronic water pump housing. Background Art
[0002] Electronic water pumps are widely used in the cooling system of the engine and drive device in automobiles and the cooling system of the heat-generating components in electric vehicles. Among the parts of the electronic water pump housing, there are injection molded parts with magnets. When the injection molded parts are formed by injection molding, if the unmagnetized (non-magnetic) magnets are first placed in the injection mold for injection molding, and then the magnets in the injection molded parts are magnetized after the injection molding is completed, the production process of the injection molded parts is complicated and the production cycle is long; if the magnets are magnetized first and then the magnetized magnets are placed in the injection mold for injection molding, it is difficult to operate due to the narrow space and high temperature in the injection mold. The injection molded parts formed by injection molding are easily scrapped because the magnetized magnets fall into the gap between the mold core and the slider, are burned by the high-temperature injection mold, are magnetically attracted to the mold core or the slider, or the positive and negative directions are wrong. Utility Model Content
[0003] In order to simplify the production process of injection molded parts with magnets and reduce the scrap rate of injection molded parts, the utility model proposes a jig for placing magnets for injection molding, the jig includes a positioning module, an anti-error magnet and a pressure rod, the placement end of the positioning module is provided with an anti-error accommodating groove, the middle part of the positioning module is provided with a pressure separation hole; the anti-error magnet is installed and fixed in the anti-error accommodating groove; the pressure rod is inserted in the pressure separation hole, and when the magnetized magnet is adsorbed on the placement end of the positioning module through the anti-error magnet, the pressure separation end of the pressure rod close to the magnetized magnet is pressed on the magnetized magnet, and the pressure end of the pressure rod away from the magnetized magnet is located outside the pressure separation hole. When using the jig for placing injection molding magnets of the utility model to place the injection molding magnets into the injection mold, the operator can first place the magnetized magnet to be placed at the placing end of the positioning module, and the magnetized magnet to be placed and the anti-error magnet located in the anti-error accommodating groove are attracted to each other by the opposite poles and adsorbed to the placing end of the positioning module, and at the same time, the anti-error magnet located in the anti-error accommodating groove and the magnetized magnet to be placed can be repelled by the same poles and the magnetized magnet to be placed to avoid the magnetized magnet to be placed being reversed; then the jig for placing injection molding magnets of the utility model with the magnetized magnet to be placed is placed at the mold core position in the injection mold, and a thrust is applied by the pressure end of the pressure rod to push the magnetized magnet to be placed into the corresponding position in the mold core, which can prevent the magnetized magnet from falling into the gap between the mold core and the slider in the injection mold, and prevent the magnetized magnet from being adsorbed on the mold core. It can be seen that the use of the jig for placing injection molding magnets of the utility model to place the magnetized magnets into the injection mold is simple and convenient to operate, which can not only simplify the production process of injection molded parts with magnets and improve production efficiency, but also avoid the scrapping of injection molded parts caused by the wrong position or direction of the magnetized magnets, thereby reducing the scrap rate of injection molded parts.
[0004] Preferably, the placement end of the positioning module is provided with two anti-error accommodating grooves, and the two anti-error accommodating grooves are symmetrically arranged on both sides of the pressure separation hole. In this way, two anti-error accommodating grooves are symmetrically arranged on both sides of the pressure separation hole to accommodate the anti-error magnet, which can not only improve the adsorption stability of the magnetized magnet to be placed at the placement end of the positioning module, but also facilitate the pressure rod installed in the pressure separation hole to smoothly push the magnetized magnet to be placed into the injection mold.
[0005] Preferably, a positioning pin is provided on the positioning module, and the positioning pin is close to the side wall of the positioning module. In this way, when the jig for placing magnets for injection molding of the utility model is placed in the corresponding position in the injection mold, the positioning pin can be used for positioning to prevent the jig for placing magnets for injection molding of the utility model from shaking or misaligning in the injection mold, thereby affecting the placement efficiency and placement accuracy of the magnetized magnets to be placed. Furthermore, two positioning pins are provided on the positioning module, and the two positioning pins are diagonally arranged. In this way, two diagonally arranged positioning pins are provided on the positioning module, which can further improve the placement accuracy of the jig for placing magnets for injection molding of the utility model when it is placed in the injection mold.
[0006] Preferably, a limiting plate is provided at the placement end of the positioning module, the limiting plate is surrounded to form a limiting groove, and the error-proof accommodation groove and the pressure-separating hole are both located inside the limiting groove. In this way, a limiting plate is provided at the placement end of the positioning module to surround and form a limiting groove for accommodating the magnetized magnet to be placed, which can prevent the magnetized magnet to be placed from being displaced or even falling off due to collision during the movement process, thereby affecting the placement efficiency and placement accuracy of the magnetized magnet to be placed.
[0007] Preferably, the pressing end of the positioning module is provided with a reset groove, and the central axis of the reset groove coincides with the central axis of the pressure-separating hole; a reset elastic member is provided in the reset groove, and a reset stopper is provided on the pressure rod, and the reset stopper is pressed on the reset elastic member. In this way, after the operator applies pressure to the pressure end of the pressure rod so that the pressure rod pushes the magnetized magnet to be placed adsorbed on the placement end of the positioning module into the corresponding position in the injection mold, the reset stopper on the pressure rod is pushed by the elastic force of the reset elastic member to drive the pressure rod to reset, which is convenient for the reuse of the jig for placing magnets for injection molding of the utility model and improves the placement efficiency of the magnetized magnets to be placed. Furthermore, the reset elastic member is a reset spring, and the reset stopper is a reset stopper ring. In this way, the reset spring is used as the reset elastic member, and the selection is simple and convenient; the reset stopper ring is used as the reset stopper, and the processing is simple and convenient, which can reduce the manufacturing cost of the jig for placing magnets for injection molding of the utility model.
[0008] Preferably, a pressure plate is provided at the pressing end of the positioning module, a pressure hole is provided on the pressure plate, and the pressure end of the pressure rod extends out of the pressure hole. In this way, by providing a pressure plate at the pressing end of the positioning module, the pressure rod can be prevented from falling off from the pressure hole, which affects the use of the jig for placing injection molding magnets of the utility model, and improves the placement efficiency of the magnetized magnets to be placed. Furthermore, the pressure plate is fixed to the pressing end of the positioning module by connecting bolts. In this way, the pressure plate is fixed to the pressing end of the positioning module by connecting bolts, which has a simple structure and low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 This is a schematic structural diagram of a fixture for placing magnets for injection molding in the utility model in use;
[0010] Figure 2 for Figure 1 AA cross-sectional structure diagram in. DETAILED DESCRIPTION
[0011] Next, combine Figure 1 and 2 , the jig for placing injection molding magnets of the utility model is described in detail.
[0012] like Figure 1 and 2As shown, the utility model is a jig for placing magnets for injection molding, and the jig includes a positioning module 1, an anti-error magnet 2 and a pressure rod 3, wherein the placement end of the positioning module 1 is provided with an anti-error accommodating groove (not shown in the figure), and the middle part of the positioning module 1 is provided with a pressure separation hole 11; the anti-error magnet 2 is installed and fixed in the anti-error accommodating groove; the pressure rod 3 is inserted in the pressure separation hole 11, and when the magnetized magnet 4 is adsorbed on the placement end of the positioning module 1 through the anti-error magnet 2, the pressure separation end of the pressure rod 3 close to the magnetized magnet 4 is pressed on the magnetized magnet 4, and the pressure end of the pressure rod 3 away from the magnetized magnet 4 is located outside the pressure separation hole 11. Preferably, the placement end of the positioning module 1 is provided with two anti-error accommodating grooves, and the two anti-error accommodating grooves are symmetrically arranged on both sides of the pressure separation hole 11. In this way, two anti-mistake accommodating grooves are symmetrically arranged on both sides of the pressure-separating hole 11 to accommodate the anti-mistake magnet 2, which can not only improve the adsorption stability of the magnetized magnet 4 to be placed at the placement end of the positioning module 1, but also facilitate the pressure rod 3 installed in the pressure-separating hole 11 to smoothly push the magnetized magnet 4 to be placed into the injection mold. Preferably, a positioning pin 12 is arranged on the positioning module 1, and the positioning pin 12 is close to the side wall of the positioning module 1. In this way, when the jig for placing injection molding magnets of the utility model is placed in the corresponding position in the injection mold, the positioning pin 12 can be used for positioning to avoid the jig for placing injection molding magnets of the utility model from shaking or misalignment in the injection mold, affecting the placement efficiency and placement accuracy of the magnetized magnet 4 to be placed. Preferably, two positioning pins 12 are arranged on the positioning module 1, and the two positioning pins 12 are arranged diagonally. In this way, two diagonally arranged positioning pins 12 are arranged on the positioning module 1, which can further improve the placement accuracy of the jig for placing injection molding magnets of the utility model when it is placed in the injection mold. Preferably, a limiting plate 13 is provided at the placement end of the positioning module 1, and the limiting plate 13 is surrounded to form a limiting groove (not shown in the figure), and the error-proof accommodation groove and the pressure-separating hole 11 are both located inside the limiting groove. In this way, a limiting plate 13 is provided at the placement end of the positioning module 1 to surround a limiting groove for accommodating the magnetized magnet 4 to be placed, so that the magnetized magnet 4 to be placed can be prevented from being displaced or even falling off due to collision during the movement process, which affects the placement efficiency and placement accuracy of the magnetized magnet 4 to be placed. Preferably, a reset groove 14 is provided at the pressure-setting end of the positioning module 1, and the central axis of the reset groove 14 coincides with the central axis of the pressure-separating hole 11; a reset elastic member 5 is provided in the reset groove 14, and a reset stopper 31 is provided on the pressure rod 3, and the reset stopper 31 is pressed on the reset elastic member 5. In this way, after the operator applies pressure to the pressure end of the pressure rod 5 so that the pressure rod 5 pushes the magnetized magnet 4 to be placed, which is adsorbed on the placement end of the positioning module 1, into the corresponding position in the injection mold, the reset stopper 31 on the pressure rod 3 is pushed by the elastic force of the reset elastic member 31 to drive the pressure rod 3 to reset, which facilitates the reuse of the jig for placing injection molding magnets of the utility model and improves the placement efficiency of the magnetized magnet 4 to be placed. Preferably, the reset elastic member 5 is a reset spring, and the reset stopper 31 is a reset stop ring.In this way, a reset spring is used as the reset elastic member 5, which is simple and convenient to select; a reset baffle ring is used as the reset baffle 31, which is simple and convenient to process, and can reduce the manufacturing cost of the jig for placing injection molding magnets of the utility model. Preferably, a pressing plate 6 is provided at the pressing end of the positioning module 1, and a pressing hole 61 is provided on the pressing plate 6, and the pressing end of the pressure rod 3 extends from the pressing hole 61. In this way, the pressing plate 6 is provided at the pressing end of the positioning module 1, which can prevent the pressure rod 3 from falling off from the pressure hole 11, affecting the use of the jig for placing injection molding magnets of the utility model, and improving the placement efficiency of the magnetized magnets 4 to be placed. Preferably, the pressing plate 6 is fixed to the pressing end of the positioning module 1 by connecting bolts 7. In this way, the pressing plate 6 is fixed to the pressing end of the positioning module 1 by connecting bolts 7, which has a simple structure and low manufacturing cost.
[0013] When using the jig for placing injection molding magnets of the utility model to place the injection molding magnets into the injection mold, the operator can first place the magnetized magnet to be placed at the placing end of the positioning module, and the magnetized magnet to be placed and the anti-error magnet located in the anti-error accommodating groove are attracted to each other by the opposite poles and adsorbed to the placing end of the positioning module, and at the same time, the anti-error magnet located in the anti-error accommodating groove and the magnetized magnet to be placed can be repelled by the same poles and the magnetized magnet to be placed to avoid the magnetized magnet to be placed being reversed; then the jig for placing injection molding magnets of the utility model with the magnetized magnet to be placed is placed at the mold core position in the injection mold, and a thrust is applied by the pressure end of the pressure rod to push the magnetized magnet to be placed into the corresponding position in the mold core, which can prevent the magnetized magnet from falling into the gap between the mold core and the slider in the injection mold, and prevent the magnetized magnet from being adsorbed on the mold core. It can be seen that the use of the jig for placing injection molding magnets of the utility model to place the magnetized magnets into the injection mold is simple and convenient to operate, which can not only simplify the production process of injection molded parts with magnets and improve production efficiency, but also avoid the scrapping of injection molded parts caused by the wrong position or direction of the magnetized magnets, thereby reducing the scrap rate of injection molded parts.
Claims
1. A jig for placing magnets for injection molding, characterized in that: The fixture includes a positioning module, an anti-error magnet and a pressure rod, the placement end of the positioning module is provided with an anti-error accommodating groove, and the middle part of the positioning module is provided with a pressure separation hole; the anti-error magnet is installed and fixed in the anti-error accommodating groove; the pressure rod is inserted in the pressure separation hole, and when the magnetized magnet is adsorbed on the placement end of the positioning module through the anti-error magnet, the pressure separation end of the pressure rod close to the magnetized magnet is pressed on the magnetized magnet, and the pressure end of the pressure rod away from the magnetized magnet is located outside the pressure separation hole.
2. The jig for placing injection molding magnets according to claim 1, characterized in that: The placement end of the positioning module is provided with two error-proofing accommodating grooves, and the two error-proofing accommodating grooves are symmetrically arranged on both sides of the pressure-dividing hole.
3. The jig for placing injection molding magnets according to claim 1 or 2, characterized in that: The positioning module is provided with a positioning pin, and the positioning pin is close to the side wall of the positioning module.
4. The jig for placing injection molding magnets according to claim 3, characterized in that: The positioning module is provided with two positioning pins, and the two positioning pins are arranged diagonally.
5. The jig for placing injection molding magnets according to claim 1 or 2, characterized in that: A limiting plate is arranged at the placement end of the positioning module, and the limiting plate is surrounded to form a limiting groove, and the error-proof accommodating groove and the pressure-separating hole are both located inside the limiting groove.
6. The jig for placing injection molding magnets according to claim 1 or 2, characterized in that: The pressing end of the positioning module is provided with a reset groove, the central axis of which coincides with the central axis of the pressing hole; a reset elastic member is provided in the reset groove, a reset stopper is provided on the pressing rod, and the reset stopper is pressed on the reset elastic member.
7. The jig for placing injection molding magnets according to claim 6, characterized in that: The reset elastic member is a reset spring, and the reset stop member is a reset stop ring.
8. The jig for placing injection molding magnets according to claim 6, characterized in that: The pressing end of the positioning module is provided with a pressing plate, a pressing hole is provided on the pressing plate, and the pressing end of the pressing rod extends out from the pressing hole.
9. The jig for placing injection molding magnets according to claim 8, characterized in that: The pressing plate is fixed to the pressing end of the positioning module by connecting bolts.