Injection molding model and nut sleeve rubber coating mold
By introducing fixed avoidance grooves, installation grooves, drainage channels and positioning block structures into the injection molding model, the problem of copper nuts shifting or loosening during the secondary injection molding process is solved, the copper nuts are stably fixed, and the reliability of the product is improved.
Patent Information
- Application Number
- CN202422661988.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-10-31
AI Technical Summary
In the prior art, the copper nut cannot be effectively fixed by the hot melt during the secondary injection molding process, causing the copper nut to easily deviate or become loose when the product is used.
The fixed avoidance groove, mounting groove, drainage channel and positioning block structure in the injection molding model are adopted, so that the copper nut is initially positioned through the mounting ring and positioning block after the first injection molding. During the second injection molding, the hot melt contacts the copper nut through the drainage channel to form a colloid to completely fix the copper nut.
The copper nut is prevented from being displaced or loosened during the injection molding process, thereby improving the stability and reliability of the product.
Smart Images
Figure CN223466616U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of secondary injection molding, in particular to an injection molding model and nut sleeve encapsulation mold. BACKGROUND
[0002] Secondary injection molding is a special plastic molding process, also known as sleeve or encapsulation. It is similar to double-color molding process, but has a big difference from double-color molding process. At present, the copper nut is usually first injected by a mechanical hand or manual operation to be located in the installation groove, and then a second injection is completed by another injection tool. The nut sleeve encapsulation mold after the copper nut injection is as shown in Figure 1
[0003] In the first injection operation, the placed copper nut 11 can play a preliminary fixing role, but in the second injection operation, the hot melt agent only covers the surface of the skeleton body 13 and cannot contact the copper nut 11, so that the copper nut 11 cannot be further fixed by the encapsulation 12 when the hot melt agent cools to form the encapsulation 12, thereby there is a possibility that the copper nut will be offset or loose in the subsequent use of the product. CONTENT OF THE UTILITY MODEL
[0004] The purpose of the present disclosure is to overcome the deficiencies in the prior art, and to provide an injection molding model and nut sleeve encapsulation mold which can fix the copper nut so that the copper nut is not easy to be offset or loose.
[0005] The purpose of the present disclosure is achieved by the following technical solutions:
[0006] An injection molding model, comprising an encapsulation, a skeleton, a copper nut, a mounting ring and a positioning block, the skeleton is provided with a fixed offset slot, an installation groove and a drainage channel, the bottom of the fixed offset slot is communicated with the drainage channel, and the fixed offset slot is used to abut against the fixed protrusion of the injection molding platform when the skeleton is placed on the injection molding platform; the mounting ring is located at the bottom of the installation groove and connected to the inner wall of the installation groove, the positioning block is arranged on the mounting ring and connected to the inner wall of the installation groove, so that a clearance slot is formed between the positioning block, the mounting ring, the inner wall of the installation groove and the copper nut, the drainage channel is communicated with the clearance slot, and the bottom of the fixed offset slot is also communicated with the clearance slot; the copper nut is located in the installation groove, and the copper nut abuts against the mounting ring and the positioning block respectively, part of the encapsulation covers the outer side of the skeleton, and another part of the encapsulation fills the gap in the drainage channel and the clearance slot to fix the copper nut.
[0007] In one of the embodiments, the bottom of the fixed offset slot is flush with the top of the positioning block.
[0008] In one of the embodiments, the top of the copper nut is flush with the top of the positioning block.
[0009] In one of the embodiments, the positioning block comprises a first positioning block, a second positioning block, a third positioning block and a fourth positioning block, which are arranged on the mounting ring and connected to the inner wall of the mounting groove.
[0010] In one of the embodiments, the first positioning block and the third positioning block are arranged correspondingly.
[0011] In one of the embodiments, the second positioning block and the fourth positioning block are arranged correspondingly.
[0012] In one of the embodiments, the top of the first positioning block is flush with the top of the third positioning block.
[0013] In one of the embodiments, the top of the second positioning block is flush with the top of the fourth positioning block.
[0014] In one of the embodiments, the top of the first positioning block, the second positioning block, the third positioning block and the fourth positioning block are flush.
[0015] In one of the embodiments, the drainage channel comprises a plurality of drainage sub-channels, each of which comprises a first drainage channel and a second drainage channel, the first drainage channel being in communication with the accommodation groove through the second drainage channel, and the encapsulating body covering the first drainage channel and the second drainage channel.
[0016] In one of the embodiments, the horizontal plane height of the second drainage channel is lower than that of the first drainage channel.
[0017] A nut sleeve encapsulation mold comprises the injection mold of any one of the above embodiments.
[0018] Compared with the prior art, the present disclosure has at least the following advantages:
[0019] After the copper nut is placed in the mounting groove, it is respectively abutted against the mounting ring and the positioning block, wherein the mounting ring abuts against the outer circumferential side of the copper nut, and the positioning block abuts against the outer side of the copper nut to serve as a preliminary positioning function, at this time, the accommodation groove is formed between the copper nut, the mounting ring, the positioning block and the inner wall of the mounting groove, and then the encapsulating body covers the outer side of the skeleton, reaches the accommodation groove through the drainage channel to contact the copper nut, thereby achieving complete fixing effect. Compared with the prior art, the copper nut of the present solution is less likely to be offset or loose after contacting the encapsulating body. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.
[0021] Figure 1 It is a structural diagram of a nut-in-beer encapsulation mold in the prior art;
[0022] Figure 2 A schematic structural diagram of an injection molding model in one embodiment;
[0023] Figure 3 for Figure 2 A schematic diagram of a partial structure of the injection molding model shown;
[0024] Figure 4 for Figure 3 The enlarged view of the injection molded part at point A is shown;
[0025] Figure 5 for Figure 2 Another partial structural diagram of the injection molding model is shown.
[0026] Attached body markings: 10, injection molding model; 100, encapsulated body; 200, skeleton; 201, fixed avoidance groove; 202, mounting groove; 203, drainage channel; 2031, first drainage channel; 2032, second drainage channel; 300, copper nut; 400, mounting ring; 500, positioning block; 510, first positioning block; 520, second positioning block; 530, third positioning block; 540, fourth positioning block; 600, avoidance groove. DETAILED DESCRIPTION
[0027] To facilitate understanding of the present disclosure, a more comprehensive description of the present disclosure will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present disclosure. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure.
[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.
[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in the description herein is for describing specific embodiments only and is not intended to be limiting. As used in this description, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0030] In order to better understand the technical solutions and beneficial effects of the present disclosure, the present disclosure will be further described in detail below in combination with specific embodiments:
[0031] Please refer to Figure 2 and Figure 3 , which is an injection mold 10 of an embodiment of the present utility model, comprising an encapsulating body 100, a framework 200, a copper nut 300, a mounting ring 400 and a positioning block 500.
[0032] As shown in Figure 2 and Figure 5 , the framework 200 is provided with a fixed avoidance groove 201, a mounting groove 202 and a drainage channel 203, the groove bottom of the fixed avoidance groove 201 is communicated with the drainage channel 203, the fixed avoidance groove 201 is used for abutting against the fixed protrusion of the injection platform when the framework 200 is placed on the injection platform; the mounting ring 400 is located at the groove bottom of the mounting groove 202 and is connected to the inner wall of the mounting groove 202, the positioning block 500 is arranged on the mounting ring 400 and is connected to the inner wall of the mounting groove 202, so as to form a let-in groove 600 between the positioning block 500, the mounting ring 400, the inner wall of the mounting groove 202 and the copper nut 300, the drainage channel 203 is communicated with the let-in groove 600, and the groove bottom of the fixed avoidance groove 201 is also communicated with the let-in groove 600; the copper nut 300 is located in the mounting groove 202, and the copper nut 300 also abuts against the mounting ring 400 and the positioning block 500 respectively, part of the encapsulating body 100 covers the outside of the framework 200, and another part of the encapsulating body 100 is filled in the gap of the drainage channel 203 and the let-in groove 600, so as to fix the copper nut 300. Specifically, the encapsulating body 100 is formed after the hot melting agent is cooled.
[0033] It can be understood that the whole injection molding process needs to be carried out twice. The first injection operation is to place the copper nut 300 in the mounting groove 202 of the framework 200. After installation, the copper nut 300 abuts against the mounting ring 400 and also abuts against the positioning block 500 to play a preliminary positioning role. After the first injection operation is completed, the product prototype is placed on the injection platform to perform the second injection operation. At this time, the fixing protrusions (not shown) of the injection platform are used to correspond to the fixed avoidance groove 201, thereby fixing the product prototype. The hot melt agent in the injection platform covers the outer surface of the framework 200, and also fills through the drainage channel 203 and the avoidance groove 600 to contact the copper nut 300, so that the hot melt agent is fixed with the copper nut 300. At this time, the hot melt agent cools to form the encapsulating body 100, and is firmly bonded with the framework 200 and the copper nut 300, so that the copper nut 300 is not prone to deviation or loosening.
[0034] In the embodiment, after the copper nut 300 is placed in the mounting groove 202, it abuts against the mounting ring 400 and the positioning block 500 respectively. The mounting ring 400 abuts against the outer circumferential side of the copper nut 300, and the positioning block 500 abuts against the outer side of the copper nut 300 to play a preliminary positioning role. At this time, the avoidance groove 600 is formed between the copper nut 300, the mounting ring 400, the positioning block 500 and the inner wall of the mounting groove 202. After the encapsulating body 100 covers the outer side of the framework 200, the drainage channel 203 reaches the avoidance groove 600 to contact the copper nut 300, thereby achieving complete fixation. Compared with the prior art, the copper nut 300 of the present scheme is less prone to deviation or loosening after contacting the encapsulating body 100.
[0035] In one of the embodiments, the groove bottom of the fixed avoidance groove 201 is flush with the top of the positioning block 500. It can be understood that after the first injection is completed, the product prototype is placed in the injection platform. At this time, the fixing protrusions of the injection platform are used to correspond to the fixed avoidance groove 201, and the positioning block 500 also abuts against the fixing protrusions, so that the positioning block 500 and the fixed avoidance groove 201 do not protrude in structure, further controlling the amount of hot melt agent used, thereby better controlling the use cost, and further fixing the copper nut 300 under the condition of controlling the cost.
[0036] In one of the embodiments, the top of the copper nut 300 is flush with the top of the positioning block 500. It can be understood that after the first injection operation is completed, the copper nut 300 is preliminarily positioned and fixed under the action of the mounting ring 400 and the positioning block 500, at this time, the top of the copper nut 300 is flush with the top of the positioning block 500, so that there is no structural protrusion between the copper nut 300 and the positioning block 500, and it is also beneficial for the fixed protrusions of the injection platform to be simultaneously abutted on the top of the copper nut 300 and the top of the positioning block 500 during the subsequent second injection operation, so that the use amount of the hot melt agent can be controlled, and the hot melt agent will not cover the copper nut 300 or the positioning block 500, thereby achieving a good effect of fixing the copper nut 300. Further, the bottom of the fixed avoidance groove 201, the top of the copper nut 300 and the top of the positioning block 500 are flushly arranged.
[0037] In one of the embodiments, the number of the positioning blocks 500 is multiple, and further, the multiple is greater than or equal to 3. In the embodiment, as shown in Figure 5 The positioning block 500 includes a first positioning block 510, a second positioning block 520, a third positioning block 530 and a fourth positioning block 540, and the first positioning block 510, the second positioning block 520, the third positioning block 530 and the fourth positioning block 540 are arranged on the mounting ring 400 and connected to the inner wall of the mounting groove 202. It can be understood that the number of the positioning blocks 500 is 4, so that the first positioning block 510, the second positioning block 520, the third positioning block 530 and the fourth positioning block 540 jointly abut on the outer side of the copper nut 300, and preliminarily fix and are not easy to displace, and then cooperate with the rubber body 100 to contact the copper nut 300, so as to achieve the effect that the copper nut 300 is completely fixed.
[0038] In one of the embodiments, the first positioning block 510 and the third positioning block 530 are correspondingly arranged; and / or, the second positioning block 520 and the fourth positioning block 540 are correspondingly arranged. It can be understood that when the first positioning block 510 and the third positioning block 530 are correspondingly arranged, the extension lines of the two form an included angle of 180°, so that the first positioning block 510 and the third positioning block 530 are respectively abutted on the corresponding two sides of the copper nut 300; when the second positioning block 520 and the fourth positioning block 540 are correspondingly arranged, the extension lines of the two form an included angle of 180°, so that the second positioning block 520 and the fourth positioning block 540 are respectively abutted on the other corresponding two sides of the copper nut 300. Thus, the four parts of the outer side of the copper nut 300 are abutted by the positioning blocks 500 respectively, so as to play a positioning and preliminary fixing role.
[0039] In one of the embodiments, the top of the first positioning block 510 is arranged flush with the top of the third positioning block 530. It can be understood that when the second injection molding operation is performed, since the top of the first positioning block 510 is arranged flush with the top of the third positioning block 530, the fixed protrusions of the injection molding platform are simultaneously abutted against the first positioning block 510 and the third positioning block 530 at this time, so as to control the usage amount of the hot melt agent while not completely covering the first positioning block 510 or the third positioning block 530, so that the flatness between the first positioning block 510, the third positioning block 530, the encapsulated body 100 formed after the hot melt agent is cooled, and the copper nut 300 is better.
[0040] In one of the embodiments, the top of the second positioning block 520 is arranged flush with the top of the fourth positioning block 540. It can be understood that when the second injection molding operation is performed, since the top of the second positioning block 520 is arranged flush with the top of the fourth positioning block 540, the fixed protrusions of the injection molding platform are simultaneously abutted against the second positioning block 520 and the fourth positioning block 540 at this time, so as to control the usage amount of the hot melt agent while not completely covering the second positioning block 520 and the fourth positioning block 540, so that the flatness between the second positioning block 520, the fourth positioning block 540, the encapsulated body 100 formed after the hot melt agent is cooled, and the copper nut 300 is better. In the embodiment, the top of the first positioning block 510, the second positioning block 520, the third positioning block 530, and the fourth positioning block 540 is arranged flush.
[0041] As shown in Figure 3 In one of the embodiments, the drainage channel 203 includes a plurality of drainage sub-channels, and in the embodiment, the number of drainage sub-channels is 4. As shown in Figure 4 Each drainage sub-channel includes a first drainage channel 2031 and a second drainage channel 2032, the first drainage channel 2031 is communicated with the accommodation groove 600 through the second drainage channel 2032, and the encapsulated body 100 covers the first drainage channel 2031 and the second drainage channel 2032. Further, the horizontal plane height of the second drainage channel 2032 is lower than the horizontal plane height of the first drainage channel 2031. It can be understood that the hot melt agent reaches the accommodation groove 600 after sequentially passing through the first drainage channel 2031 and the second drainage channel 2032 along the outer wall of the framework 200, wherein the horizontal plane height of the second drainage channel 2032 is lower than the horizontal plane height of the first drainage channel 2031, so that in the second injection molding step, the flow capacity of the hot melt agent passing through the second drainage channel 2032 is greater than the flow capacity of the hot melt agent passing through the first drainage channel 2031, and further, the hot melt agent can stepwise enter the accommodation groove 600, and more accurately fix the copper nut 300.
[0042] The present disclosure also provides a nut sleeve encapsulation mold, which includes the injection molding model 10 of any one of the above embodiments.
[0043] Compared with the prior art, the present disclosure has at least the following advantages:
[0044] After the copper nut 300 is placed in the mounting groove 202, it is respectively abutted against the mounting ring 400 and the positioning block 500, wherein the mounting ring 400 abuts against the outer circumferential side of the copper nut 300, and the positioning block 500 abuts against the outer side of the copper nut 300 to play a preliminary positioning role, at this time, the copper nut 300, the mounting ring 400, the positioning block 500 and the inner wall of the mounting groove 202 form a displacement slot 600, and then the encapsulating body 100 covers the outside of the framework 200, reaches the displacement slot 600 through the drainage channel 203, and contacts the copper nut 300, so as to achieve the effect of complete fixation. Compared with the prior art, the copper nut 300 of the present scheme is less likely to be offset or loose after contacting the encapsulating body 100.
[0045] The above-described embodiments only express several embodiments of the present disclosure, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the disclosed patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present disclosure, a number of modifications and improvements can be made, which are within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure patent should be subject to the appended claims.
Claims
1. An injection molding model comprising an encapsulating body, a skeleton and a copper nut, characterized in that, the skeleton is provided with a fixed avoidance slot, a mounting slot and a drainage channel, the bottom of the fixed avoidance slot is communicated with the drainage channel, and the fixed avoidance slot is used to abut against a fixed protrusion of an injection molding platform when the skeleton is placed on the injection molding platform; the injection molding model further comprises a mounting ring and a positioning block, the mounting ring is located at the bottom of the mounting slot and connected to the inner wall of the mounting slot, and the positioning block is arranged on the mounting ring and connected to the inner wall of the mounting slot, so that a clearance slot is formed between the positioning block, the mounting ring, the inner wall of the mounting slot and the copper nut, the drainage channel is communicated with the clearance slot, and the bottom of the fixed avoidance slot is also communicated with the clearance slot; the copper nut is located in the mounting slot, and the copper nut also abuts against the mounting ring and the positioning block respectively, part of the encapsulating body covers the outer side of the skeleton, and another part of the encapsulating body fills the gap between the drainage channel and the clearance slot to fix the copper nut.
2. The injection mold according to claim 1, wherein The bottom of the fixed avoidance slot is flush with the top of the positioning block.
3. The injection molded model of claim 1, wherein, The top of the copper nut is flush with the top of the positioning block.
4. The injection molded model of claim 1, wherein, The positioning block comprises a first positioning block, a second positioning block, a third positioning block and a fourth positioning block, and the first positioning block, the second positioning block, the third positioning block and the fourth positioning block are arranged on the mounting ring and connected to the inner wall of the mounting slot.
5. The injection mold according to claim 4, wherein The first positioning block and the third positioning block are correspondingly arranged; and / or, The second positioning block and the fourth positioning block are correspondingly arranged.
6. The injection molded model of claim 4, wherein, The top of the first positioning block is flush with the top of the third positioning block; and / or, The top of the second positioning block is flush with the top of the fourth positioning block.
7. The injection mold according to claim 6, wherein The top of the first positioning block, the second positioning block, the third positioning block and the fourth positioning block is flush.
8. The injection molded model of claim 1, wherein, The drainage channel comprises a plurality of drainage sub-channels, each of the drainage sub-channels comprises a first drainage channel and a second drainage channel, the first drainage channel is communicated with the clearance slot through the second drainage channel, and the encapsulating body covers the first drainage channel and the second drainage channel.
9. The injection molded model of claim 8, wherein, The horizontal plane height of the second drainage channel is lower than that of the first drainage channel.
10. A bagging mold for a nut sleeve, characterized by comprising: An injection molding model according to any one of claims 1-9.