TP integral exhaust insert structure
By using the TP integral venting insert structure, the positional deviation and processing difficulties of the traditional small insert venting structure are solved by utilizing venting grooves and adsorption components. This achieves efficient overall venting and improves mold stability, thereby increasing injection molding accuracy and production efficiency.
Patent Information
- Application Number
- CN202423216391.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Traditional small insert venting structures are prone to positional deviations during mold closing, resulting in ineffective venting. Furthermore, they involve a large amount of machining work and are difficult to control tolerances, affecting mold stability and production efficiency.
The TP integral venting insert structure is adopted, which combines the front mold, rear mold and first insert, and sets venting grooves and adsorption components. The adsorption components are used to fix and support the steel sheet in the mold, and the integral venting is achieved through the connected venting grooves, which reduces the number of inserts and improves the fitting accuracy.
It achieves flexible overall venting, improves mold stability and production efficiency, reduces processing difficulty and cost, and enhances injection molding precision.
Smart Images
Figure CN223573715U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of injection mold, especially to a TP whole exhaust insert structure. BACKGROUND
[0002] The middle plate (also known as the middle frame of the mobile phone) is an important component in the structure of a smartphone, usually used to support internal components such as the battery, motherboard, camera, and other electronic components. The design and material of the middle plate directly affect the overall structural strength, weight, heat dissipation performance, and aesthetics of the phone.
[0003] In order to increase strength and toughness, a certain shaped plastic part is usually injection molded around the edges of the middle plate. The injection molding material can provide additional structural support to the edges of the middle plate, making it more robust, improving overall durability, and reducing the risk of damage when dropped or impacted.
[0004] During the injection molding process, the middle plate steel sheet needs to be placed inside the injection molding cavity in advance, and air between the middle plate steel sheet and the components inside the mold needs to be exhausted. The traditional exhaust is to set multiple small inserts at the four edges of the injection molding cavity for exhaust, as shown in Figure 7 .
[0005] However, the small insert structure has many disadvantages, such as the structure being limited and unable to exhaust when the actual position of the trapped air deviates from the mold flow coordinate position during the mold closing process; there are many components of the small insert, and there are many insert holes on the mold core, which increases the workload during processing; in addition, the jig maker's mold assembly time is longer, and the tolerance is not easy to eliminate when there are too many parts.
[0006] Therefore, it is necessary to improve the existing small insert exhaust structure. INVENTION CONTENTS
[0007] The utility model overcomes the above-mentioned situation, aiming at providing a technical scheme that can solve the above-mentioned problems.
[0008] The utility model provides a TP whole exhaust insert structure, which comprises a front mold, a rear mold and a first insert, the first insert is fixedly connected to the front mold, and the front mold and the rear mold are combined to form an injection molding cavity, one side of the first insert facing the injection molding cavity is provided with an exhaust groove, and the exhaust groove is used for whole exhaust operation of the gas in the injection molding cavity.
[0009] As a further scheme of the utility model, the injection molding cavity is also provided with an in-mold steel sheet, the in-mold steel sheet is fixedly connected in the injection molding cavity, one side of the in-mold steel sheet abuts against the rear mold, and the other side of the in-mold steel sheet abuts against the first insert, so that the mold performs in-mold injection operation on the four surrounding frames of the in-mold steel sheet.
[0010] As a further scheme of the utility model: still include adsorption subassembly, adsorption subassembly is fixedly connected in rear mould, be used for adsorbing and fixing in mould steel sheet, thereby make in mould steel sheet keep preset position when closing mould.
[0011] As a further scheme of the utility model: adsorption subassembly is equipped with adsorption seat, adsorption pipe and adsorption nozzle that communicate with each other, adsorption seat is fixedly connected in the side of rear mould far from injection molding cavity, one end of adsorption pipe is fixedly connected in adsorption seat and forms the communicating state, and its other end extends a certain distance in the direction of injection molding cavity through rear mould, adsorption nozzle is fixedly connected in the end of adsorption pipe that extends to injection molding cavity, and makes the suction part of adsorption nozzle can carry out negative pressure adsorption to in mould steel sheet, and makes in mould steel sheet keep at the preset position in injection molding cavity.
[0012] As a further scheme of the utility model: exhaust groove is equipped with transverse groove and longitudinal groove, transverse groove is set up in the short side direction of in mould steel sheet, longitudinal groove is set up in the long side direction of in mould steel sheet, and transverse groove and longitudinal groove form the communicating state with each other.
[0013] As a further scheme of the utility model: exhaust groove is still equipped with edge groove, edge groove is set up in the edge position of in mould steel sheet close to plastic part, and keeps the communicating state with transverse groove or longitudinal groove.
[0014] As a further scheme of the utility model: exhaust groove is still equipped with corner groove, corner groove is set up in the four corner positions of in mould steel sheet, and keeps the communicating state with transverse groove or longitudinal groove.
[0015] As a further scheme of the utility model: front mould is equipped with abutting hole, abutting column is arranged in abutting hole, abutting column is connected in abutting hole in sliding mode, and one end extends into injection molding cavity, and abuts to in mould steel sheet.
[0016] As a further scheme of the utility model: abutting column is equipped with column end groove in the position corresponding to exhaust groove, and column end groove and exhaust groove form the communicating state.
[0017] As a further scheme of the utility model: still include lateral core, lateral core is connectable in the side of rear mould in separable mode, and lateral core is used to form the surrounding of the four sides of injection molding cavity.
[0018] Compared with the prior art, the utility model has the advantages of:
[0019] 1, by setting up first insert and front mould, rear mould cooperation, jointly form corresponding injection molding cavity, and still utilize first insert to set up exhaust groove, carry out overall exhaust operation to the air inside injection molding cavity, reduce the number of inserts, save production cost, improve its injection precision.
[0020] 2、Still through the adsorption assembly to the in-mold steel sheet adsorption and support, it can keep corresponding preset position when the mold is closed, and make the in-mold steel sheet and the first insert match each other, and use the exhaust groove to exhaust the gas as a whole.
[0021] Therefore, through the above improvement, the utility model can provide a TP whole exhaust insert structure, the whole exhaust insert structure of the first insert can meet the demand of flexible exhaust without restriction, improve the matching precision between the insert and the front mold and the rear mold, improve the stability of the TP mold, shorten the manufacturing time, reduce the difficulty in the later period, and greatly improve the production and processing efficiency.
[0022] The additional aspects and advantages of the utility model will be partly given in the following description, partly will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0023] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying the creative labor.
[0024] Figure 1 It is the structure schematic view of the front mold and the rear mold of the utility model;
[0025] Figure 2 It is the structure schematic view of the adsorption assembly and the in-mold steel sheet of the utility model;
[0026] Figure 3 It is the structure schematic view of the rear mold and the adsorption nozzle of the utility model;
[0027] Figure 4 It is the structure schematic view of the first insert and the abutting hole of the utility model;
[0028] Figure 5 It is the structure schematic view of the exhaust groove and the first insert of the utility model;
[0029] Figure 6 It is the structure schematic view of the column end groove and the abutting column of the utility model;
[0030] Figure 7 It is the structure schematic view of the small insert in the prior art.
[0031] The reference signs and names in the drawings are as follows:
[0032] 10 front mold; 11 abutting hole; 12 abutting column; 13 column end groove; 14 back mold; 20 first insert; 21 exhaust groove; 22 transverse groove; 23 longitudinal groove; 24 edge groove; 25 corner groove; 30 adsorption assembly; 31 adsorption seat; 32 adsorption pipe; 33 adsorption nozzle; 40 in-mold steel sheet; 41 plastic part. DETAILED DESCRIPTION
[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0034] Please refer to Figures 1 to 6 In the embodiments of the present application, a TP overall exhaust insert structure comprises a front mold 10, a back mold 14 and a first insert 20. The first insert 20 is fixedly connected to the front mold 10 and cooperates with the front mold 10 and the back mold 14 to form an injection molding cavity. The first insert 20 is provided with an exhaust groove 21 on the side facing the injection molding cavity. The exhaust groove 21 is used for overall exhaust operation of the gas in the injection molding cavity. An in-mold steel sheet 40 is further arranged in the injection molding cavity. The in-mold steel sheet 40 is fixedly connected in the injection molding cavity and abuts against the back mold 14 on one side and abuts against the first insert 20 on the other side, so that the in-mold steel sheet 40 is subjected to in-mold injection operation of a plastic part 41 around the frame.
[0035] Specifically, when the injection mold is closed, the distance between the front mold 10 and the back mold 14 gradually decreases, forming a certain gas space therebetween, and exhaust operation of the gas is required. In particular, in the injection mold in which the in-mold steel sheet 40 is placed inside the injection molding cavity, the in-mold steel sheet 40 will hinder the gas discharge to some extent. Therefore, a special exhaust structure needs to be provided. As Figure 7 shown in the prior art, a plurality of small exhaust inserts are usually arranged around the injection molding cavity for exhaust operation.
[0036] However, the small insert structure has many disadvantages. For example, when the actual position of the trapped gas deviates from the mold flow coordinate position during the mold closing process, the structure is limited and cannot exhaust. In addition, the small insert has many parts, the insert holes on the mold core are also more, the workload during processing is large, the jig maker's mold matching time is also long, and the tolerance is not easy to eliminate after too many parts.
[0037] Therefore, the utility model discloses through research and development improvement, propose a kind of TP overall exhaust insert structure, utilize the overall exhaust insert structure of first insert 20, can satisfy the demand of flexible exhaust without restriction, improve the cooperation accuracy between insert and front mould 10, rear mould 14 simultaneously, improve the stability of TP mould, and manufacturing time is shortened, later difficulty reduces, greatly improve production and processing efficiency.
[0038] As Figure 2 And Figure 3 Preferably, it further includes adsorption assembly 30, the adsorption assembly 30 is fixedly connected to rear mould 14, for adsorbing and fixing in-mould steel sheet 40, so that in-mould steel sheet 40 keeps preset position when mould is closed.The adsorption assembly 30 is provided with adsorption seat 31, adsorption tube 32 and adsorption nozzle 33, which are communicated with each other, the adsorption seat 31 is fixedly connected to the side of rear mould 14 away from injection molding cavity, one end of the adsorption tube 32 is fixedly connected to the adsorption seat 31 and forms a communication state, and the other end extends a certain distance through the rear mould 14 to the direction of injection molding cavity, the adsorption nozzle 33 is fixedly connected to the end of the adsorption tube 32 extending to the injection molding cavity, and the suction part of the adsorption nozzle 33 can adsorb in-mould steel sheet 40 by negative pressure, and in-mould steel sheet 40 is kept at the preset position in the injection molding cavity.
[0039] Specifically, the adsorption seat 31 can be provided with an air passage inside, and one end of the air passage is in air communication with the adsorption tube 32, and the other end of the air passage can be in communication with an external negative pressure device through an air hose, so that the external negative pressure device provides the negative pressure required for adsorbing in-mould steel sheet 40.
[0040] Secondly, in order to stably adsorb and support in-mould steel sheet 40, preferably, two groups of adsorption tubes 32 and adsorption nozzles 33 are arranged and fixedly connected to the two ends of the adsorption seat 31 respectively, so as to adsorb the diagonal positions of in-mould steel sheet 40 respectively, thereby forming better support and fixation.
[0041] As Figure 4 And Figure 5 Preferably, the exhaust groove 21 is provided with transverse groove 22 and longitudinal groove 23, the transverse groove 22 is arranged in the short side direction of in-mould steel sheet 40, the longitudinal groove 23 is arranged in the long side direction of in-mould steel sheet 40, and the transverse groove 22 and the longitudinal groove 23 are in communication with each other.
[0042] Specifically, the transverse groove 22 and the longitudinal groove 23 can be arranged relatively wide, mainly for the relatively wide convex part of the middle part of in-mould steel sheet 40, so as to cooperate with in-mould steel sheet 40 and exhaust a large amount of air between in-mould steel sheet 40 and injection molding cavity.
[0043] As Figure 5As shown in the drawings, preferably, the exhaust groove 21 is also provided with an edge groove 24, which is arranged at the edge position of the in-mold steel sheet 40 close to the plastic part 41, and is in communication with the transverse groove 22 or the longitudinal groove 23.
[0044] Specifically, the edge groove 24 can exhaust the air at the edge position of the in-mold steel sheet 40, and can also exhaust the air in the injection space of the plastic part 41, so that the normal injection operation can be completed.
[0045] As shown in the drawings, Figure 5 preferably, the exhaust groove 21 is also provided with a corner groove 25, which is arranged at the four corner positions of the in-mold steel sheet 40, and is in communication with the transverse groove 22 or the longitudinal groove 23.
[0046] Specifically, the corner groove 25 can exhaust the air at the four corner positions of the in-mold steel sheet 40, and can especially exhaust the air in the injection space of the plastic part 41 at the four corner positions of the injection cavity, so that the normal injection operation can be completed.
[0047] As shown in the drawings, Figure 1 , Figure 2 and Figure 4 preferably, the front mold 10 is provided with a clamping hole 11, the clamping hole 11 is provided with a clamping column 12, the clamping column 12 is slidingly connected to the clamping hole 11, and one end extends into the injection cavity to abut against the in-mold steel sheet 40.
[0048] Specifically, in order to further fix the position of the in-mold steel sheet 40 in the injection cavity, the clamping column 12 can be arranged on the front mold 10, and the clamping column 12 extends into the injection cavity to abut against the in-mold steel sheet 40. It can be understood that the other end of the clamping column 12 can be connected to the front mold 10 frame or the corresponding base plate, so that the clamping column 12 can be driven when the mold is closed.
[0049] As shown in the drawings, Figure 6 preferably, the clamping column 12 is provided with a column end groove 13 corresponding to the position of the exhaust groove 21, and the column end groove 13 is in communication with the exhaust groove 21.
[0050] Specifically, in order to normally exhaust the air in the injection cavity and avoid the clamping column 12 hindering the exhaust, the column end groove 13 can be arranged at the end of the clamping column 12 extending into the injection cavity, and the column end groove 13 is in communication with the exhaust groove 21.
[0051] In another embodiment, preferably, a lateral core (not shown in the drawings) is also included, which is detachably connected to the side surface of the rear mold 14, and is used to surround the four side surfaces of the injection cavity.
[0052] Specifically, since the four side surfaces of the plastic part 41 are also provided with certain recesses or reverse buckles, it is inconvenient to directly set the mold core for surrounding. Therefore, the corresponding lateral core can be set to surround the four side surfaces of the injection molding cavity, so that the plastic part 41 can be smoothly injection molded. It can be understood that the lateral core can also be provided with corresponding exhaust holes and switch pins inside, so that when exhaust is needed, the air inside the injection molding cavity can be exhausted through the exhaust holes. Similarly, the gas between the first insert 20 and the in-mold steel sheet 40 can also be communicated with the exhaust groove 21 and the exhaust hole to be exhausted.
[0053] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application.
Claims
1. A TP integral exhaust insert structure, characterized in that, The mold includes a front mold (10), a rear mold (14) and a first insert (20). The first insert (20) is fixed to the front mold (10) and works with the front mold (10) and the rear mold (14) to form an injection cavity. The side of the first insert (20) facing the injection cavity is provided with an exhaust groove (21). The exhaust groove (21) is used to exhaust the gas in the injection cavity as a whole.
2. The TP integral exhaust insert structure according to claim 1, characterized in that, The injection cavity is also provided with an in-mold steel sheet (40), which is fixed in the injection cavity. One side of the in-mold steel sheet (40) abuts against the rear mold (14), and the other side abuts against the first insert (20), so that the mold performs in-mold injection molding of the plastic part (41) on the four sides of the in-mold steel sheet (40).
3. The TP integral exhaust insert structure according to claim 2, characterized in that, It also includes an adsorption component (30), which is fixed to the rear mold (14) and is used to adsorb and fix the steel sheet (40) inside the mold, so that the steel sheet (40) inside the mold is kept in a preset position when the mold is closed.
4. The TP integral exhaust insert structure according to claim 3, characterized in that, The adsorption assembly (30) is provided with an adsorption seat (31), an adsorption tube (32) and an adsorption nozzle (33) that are connected to each other. The adsorption seat (31) is fixed to the side of the rear mold (14) away from the injection cavity. One end of the adsorption tube (32) is fixed to the adsorption seat (31) and forms a communication state. The other end extends a certain distance through the rear mold (14) towards the injection cavity. The adsorption nozzle (33) is fixed to the end of the adsorption tube (32) that extends towards the injection cavity, and the suction part of the adsorption nozzle (33) can perform negative pressure adsorption on the steel sheet (40) in the mold, and keep the steel sheet (40) in the mold at a preset position in the injection cavity.
5. The TP integral exhaust insert structure according to claim 2, characterized in that, The venting groove (21) is provided with a transverse groove (22) and a longitudinal groove (23). The transverse groove (22) is opened in the short side direction of the inner steel sheet (40), and the longitudinal groove (23) is opened in the long side direction of the inner steel sheet (40). The transverse groove (22) and the longitudinal groove (23) are connected to each other.
6. The TP integral exhaust insert structure according to claim 5, characterized in that, The venting groove (21) is also provided with an edge groove (24), which is located at the edge of the in-mold steel sheet (40) near the plastic part (41) and is in communication with the transverse groove (22) or the longitudinal groove (23).
7. The TP integral exhaust insert structure according to claim 5, characterized in that, The venting groove (21) is also provided with corner grooves (25), which are located at the four corners of the in-mold steel sheet (40) and are connected to the transverse groove (22) or the longitudinal groove (23).
8. The TP integral exhaust insert structure according to claim 2, characterized in that, The front mold (10) is provided with a clamping hole (11), and a clamping post (12) is provided in the clamping hole (11). The clamping post (12) is slidably connected to the clamping hole (11), and one end extends into the injection cavity to abut against the steel sheet (40) in the mold.
9. The TP integral exhaust insert structure according to claim 8, characterized in that, The clamping post (12) has a post end groove (13) at the position corresponding to the exhaust groove (21), and the post end groove (13) and the exhaust groove (21) are in a connected state.
10. The TP integral exhaust insert structure according to claim 1, characterized in that, It also includes a side core, which is detachably connected to the side of the rear mold (14) and is used to enclose the four sides of the injection cavity.