Mold for injection molding
By using a hydraulically driven mounting plate and module design, combined with a pneumatic pressure balancing mechanism, automatic demolding of injection molds is achieved. This solves the problem of difficulty in removing workpieces embedded in the mold in existing technologies, protects the workpieces from damage, and ensures the smooth progress of the injection molding process.
Patent Information
- Application Number
- CN202422785003.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-11-14
AI Technical Summary
In existing injection molds, the workpiece is embedded inside the mold during demolding, making it difficult to remove and easily damaging the workpiece.
An injection mold was designed, which uses a hydraulic rod to drive a mounting plate and a module. The automatic ejection and demolding of the workpiece is achieved through a pneumatic pressure balance mechanism. The hydraulic rod and the module drive the mounting plate, which in turn drives the module, which in turn drives the mounting frame. The mounting plate then drives the connecting rod and the movable plug, thus achieving automatic demolding of the workpiece.
It enables automatic demolding of workpieces, avoiding the need for tools to be used for demolding, protecting workpieces from damage, and ensuring the normal progress of subsequent injection molding work.
Smart Images
Figure CN223630825U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to injection moulding technical field, concretely is a mould for injection moulding. BACKGROUND
[0002] Injection molding machine is also called injection molding machine, it can make thermoplastic or thermosetting plastic into various shape plastic products by plastic forming mould, injection molding machine can heat plastic, high pressure is applied to molten plastic, so that it fills the mold cavity, so injection mold is a very important part in the injection molding process.
[0003] The current injection mold is generally divided into upper mold and lower mold, and the upper mold and the lower mold are integral structure, so generally after injection molding, the workpiece is embedded in the lower mold after opening the upper mold, because the workpiece is embedded in the mold, it is troublesome to take out the workpiece, even need to use tool demoulding, and easy to cause damage to the workpiece. UTILITY MODEL CONTENTS
[0004] In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide a mould for injection moulding.
[0005] One of the purposes of the utility model is realized by the following technical scheme:
[0006] A mould for injection moulding, including lower die seat and module, the lower die seat is opened in die groove, the top of the mounting plate is fixedly connected with the top of the mounting plate, the top of the mounting plate is provided with hydraulic rod, the top of the hydraulic rod is fixedly connected with the mounting frame, the bottom of the die groove is provided with exhaust cavity, the inner cavity of the exhaust cavity is fixedly connected with the top of the horizontal plate, the bottom of the horizontal plate is fixedly connected with the first spring, the bottom of the first spring is fixedly connected with the limit plate, the horizontal plate is provided with perforation, the inner cavity of the perforation is movably penetrated with the vertical rod, the bottom end of the vertical rod is fixedly connected with the limit plate, the top end of the vertical rod is fixedly connected with the first movable plug, the right side of the exhaust cavity is provided with gas conveying cavity, the right side of the lower die seat is fixedly connected with fixed tube, the inner cavity of the fixed tube is movably inserted with the second movable plug close to the bottom end, the bottom of the second movable plug is fixedly connected with the first connecting rod, the top of the first connecting rod is fixedly connected with the second connecting rod close to the back side, the right side of the mounting frame is provided with slot, the left end of the second connecting rod is movably penetrated through the slot and is mutually attached to the top of the mounting plate, the top of the second connecting rod is provided with reset mechanism.
[0007] Preferably, the die groove and the module are matched with each other.
[0008] Preferably, the bottom of the hydraulic rod is provided with a transmission rod, the top end of the transmission rod is fixedly connected with the power output end of the hydraulic rod, and the transmission rod is fixedly connected to the top of the mounting plate.
[0009] Preferably, the mounting frame is U-shaped in cross section, and the mounting frame is fixedly connected to the top of the lower die seat.
[0010] Preferably, the front side of the vertical rod is fixedly connected with a limiting block, and the bottom of the limiting block is in close contact with the top of the horizontal plate.
[0011] Preferably, the fixed pipe and the gas conveying cavity are in communication with each other, and the fixed pipe and the gas conveying cavity.
[0012] Preferably, the reset mechanism comprises a reset rod and a fixed plate, the reset rod is fixedly connected to the top end of the second connecting rod, the fixed plate is fixedly connected to the right side wall of the mounting frame, the top end of the reset rod is movably penetrated through the fixed plate and movably sleeved with a second spring, the top end of the reset rod is fixedly connected with a top plate, the bottom end of the second spring is fixedly connected with the fixed plate, and the top end of the second spring is fixedly connected with the top plate.
[0013] Compared with the prior art, the utility model has the advantages that:
[0014] 1、the utility model discloses a mold for injection molding, after injection molding, the hydraulic rod drives the mounting plate and the module to move upwards, the mounting plate drives the second connecting rod to move upwards, the second connecting rod drives the second movable plug to move upwards through the first connecting rod, in order to maintain the pressure balance of the gas conveying cavity, the exhaust cavity and the fixed pipe inner chamber, the gas pressure drives the first movable plug to move upwards, the first movable plug drives the vertical rod and the limiting plate to move upwards, the first spring is compressed and deformed, the first movable plug moves upwards and ejects the formed finished product, thereby realizing demolding, and the finished product is not damaged by the aid of tools.
[0015] 2、the utility model discloses a mold for injection molding, after demolding, when next injection molding work is carried out, the hydraulic rod is started through the external power supply, the hydraulic rod drives the mounting plate and the module to move downwards, the module moves downwards to the inner chamber of the die groove, the mounting plate moves to be away from the second connecting rod, the second connecting rod moves downwards to the original position under the action of the second spring and gravity, the second movable plug moves to the original position along, the first movable plug moves downwards to the original position under the elastic action of the first spring, thereby guaranteeing the normal operation of subsequent injection molding work.
[0016] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, which can be implemented according to the content of the specification, and in order to let the above and other purposes, characteristics and advantages of the utility model can be more obvious and easy to understand, the following preferred embodiments are taken, and the detailed description is as follows. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the front view of the utility model;
[0018] Figure 2 This is a sectional perspective view of the lower mold base of the component of this utility model;
[0019] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;
[0020] Figure 4 This is a perspective view of the first connecting rod and the second connecting rod of the present invention.
[0021] Figure 5 This utility model Figure 4 A three-dimensional image viewed from below.
[0022] Labels in the diagram: 1. Lower mold base; 2. Mold groove; 3. Mounting plate; 4. Transmission rod; 5. Hydraulic rod; 6. Mounting bracket; 7. Module; 8. Exhaust chamber; 9. Air supply chamber; 10. Fixing pipe; 11. Horizontal plate; 12. First spring; 13. Limiting plate; 14. Perforation; 15. Vertical rod; 16. Limiting block; 17. First movable plug; 18. Second movable plug; 19. First connecting rod; 20. Second connecting rod; 21. Slot; 22. Reset rod; 23. Fixing plate; 24. Second spring; 25. Top plate. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0024] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0025] 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 invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0026] Please see Figures 1-5The utility model provides a kind of technical scheme: a mould for injection molding, including lower die seat 1 and module 7, lower die seat 1 is opened with mould groove 2, mould groove 2 is mutually matched with module 7, the top of module 7 is fixedly connected with mounting plate 3, the top of mounting plate 3 is opened with injection hole, injection hole penetrates module 7, the top of mounting plate 3 is equipped with hydraulic rod 5, the bottom of hydraulic rod 5 is equipped with transmission rod 4, transmission rod 4 top end is fixedly connected with hydraulic rod 5 power output end, transmission rod 4 is fixedly connected at the top of mounting plate 3, the top of hydraulic rod 5 is fixedly connected with mounting bracket 6, the cross section of mounting bracket 6 is U-shaped, mounting bracket 6 is fixedly connected at the top of lower die seat 1, the bottom of mould groove 2 is opened with exhaust cavity 8, the inner chamber top of exhaust cavity 8 is fixedly connected with cross board 11, the bottom of cross board 11 is fixedly connected with first spring 12, the bottom of first spring 12 is fixedly connected with limit plate 13, perforation 14 is opened on cross board 11, the inner chamber of perforation 14 is movably penetrated with vertical rod 15, the bottom end of vertical rod 15 is fixedly connected with limit plate 13, the top end of vertical rod 15 is fixedly connected with first movable plug 17, the front side of vertical rod 15 is fixedly connected with limit block 16, the bottom of limit block 16 and the top of cross board 11 are mutually pasted together;
[0027] The right side of exhaust cavity 8 is opened with gas delivery cavity 9, the right side of lower die seat 1 is fixedly connected with fixed pipe 10, fixed pipe 10 is mutually penetrated with gas delivery cavity 9, fixed pipe 10 and gas delivery cavity 9, the inner chamber of fixed pipe 10 is movably inserted with second movable plug 18 close to bottom end, the bottom of second movable plug 18 is fixedly connected with first connecting rod 19, the top of first connecting rod 19 is fixedly connected with second connecting rod 20 close to rear side, the right side of mounting bracket 6 is opened with slot 21, the left end of second connecting rod 20 is movably penetrated slot 21, and is mutually pasted together with the top of mounting plate 3, the top of second connecting rod 20 is equipped with reset mechanism, reset mechanism includes reset rod 22 and fixed plate 23, reset rod 22 is fixedly connected at the top end of second connecting rod 20, fixed plate 23 is fixedly connected on the right side wall of mounting bracket 6, the top end of reset rod 22 is movably penetrated fixed plate 23, and is movably sleeved with second spring 24, the top end of reset rod 22 is fixedly connected with top plate 25, the bottom end of second spring 24 is fixedly connected with fixed plate 23, and the top end of second spring 24 is fixedly connected with top plate 25.
[0028] Working principle: the utility model discloses a mould for injection molding, in the use process, through external power supply and start hydraulic rod 5, and hydraulic rod 5 drives mounting plate 3 and module 7 to move downwards, and module 7 moves downwards to the inner chamber of mould groove 2, after that, stop the work of hydraulic rod 5, then can start injection molding operation, after injection molding, through external power supply and start hydraulic rod 5, and hydraulic rod 5 drives mounting plate 3 and module 7 to move upwards, and module 7 moves downwards to the inner chamber of mould groove 2, after that, along with the continuous upward movement of mounting plate 3, and mounting plate 3 drives second connecting rod 20 to move upwards, and second connecting rod 20 drives top plate 25 to move upwards, and second spring 24 is stretched simultaneously, and second connecting rod 20 moves in the inner chamber of slot 21, and second connecting rod 20 drives second movable plug 18 to move upwards through first connecting rod 19, in order to maintain the pressure balance of gas cavity 9, exhaust cavity 8 and the inner chamber of fixed pipe 10, and air pressure drives first movable plug 17 to move upwards, and first movable plug 17 drives vertical rod 15 and limiting plate 13 to move upwards, and first spring 12 is compressed and deformed, and first movable plug 17 moves upwards and ejects the formed finished product, thereby realizing demolding, and demolding is not needed with the aid of tool, and damage to the finished product is avoided;
[0029] After demolding is completed, when injection molding work is carried out next time, through external power supply and start hydraulic rod 5, and hydraulic rod 5 drives mounting plate 3 and module 7 to move downwards, and module 7 moves downwards to the inner chamber of mould groove 2, and mounting plate 3 moves to be away from second connecting rod 20, and second connecting rod 20 moves downwards to the original position under the action of second spring 24 and gravity, and second movable plug 18 moves to the original position along, and first movable plug 17 moves downwards to the original position under the elastic action of first spring 12, thereby guaranteeing the normal operation of subsequent injection molding work.
[0030] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore, cannot be understood as limiting the utility model.
[0031] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an ordered ranking of the indicated technical features. Thus, features defined with "first", "second" or "third" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified.
[0032] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0033] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.
[0034] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the present application without contradiction.
[0035] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be construed as limiting the present application. Those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.
Claims
1. A mold for injection molding, comprising a lower mold base (1) and a mold block (7), the lower mold base (1) having a mold cavity (2) formed therein, characterized in that: The top of the module (7) is fixedly connected with a mounting plate (3), the top of the mounting plate (3) is provided with a hydraulic rod (5), the top of the hydraulic rod (5) is fixedly connected with a mounting rack (6), the bottom of the mold groove (2) is provided with an exhaust cavity (8), the inner cavity of the exhaust cavity (8) is fixedly connected with a transverse plate (11), the bottom of the transverse plate (11) is fixedly connected with a first spring (12), the bottom of the first spring (12) is fixedly connected with a limiting plate (13), a perforation (14) is formed in the transverse plate (11), a vertical rod (15) is movably arranged in the perforation (14), the bottom end of the vertical rod (15) is fixedly connected with the limiting plate (13), the top end of the vertical rod (15) is fixedly connected with a first movable plug (17), the right side of the exhaust cavity (8) is provided with a gas conveying cavity (9), the right side of the lower mold base (1) is fixedly connected with a fixed pipe (10), a second movable plug (18) is movably inserted into the inner cavity of the fixed pipe (10) near the bottom end, the bottom of the second movable plug (18) is fixedly connected with a first connecting rod (19), the top of the first connecting rod (19) is fixedly connected with a second connecting rod (20) near the rear side, the right side of the mounting rack (6) is provided with a slot (21), the left end of the second connecting rod (20) movably penetrates the slot (21) and is in close contact with the top of the mounting plate (3), and the top of the second connecting rod (20) is provided with a reset mechanism.
2. A mold for injection molding according to claim 1, characterized in that: The mold groove (2) is matched with the module (7).
3. A mold for injection molding according to claim 1, characterized in that: The bottom of the hydraulic rod (5) is provided with a transmission rod (4), the top end of the transmission rod (4) is fixedly connected with the power output end of the hydraulic rod (5), and the transmission rod (4) is fixedly connected to the top of the mounting plate (3).
4. The mold for injection molding according to claim 1, characterized by: The cross section of the mounting rack (6) is U-shaped, and the mounting rack (6) is fixedly connected to the top of the lower mold base (1).
5. The mold for injection molding according to claim 1, wherein: The front side of the vertical rod (15) is fixedly connected with a limiting block (16), and the bottom of the limiting block (16) is in close contact with the top of the transverse plate (11).
6. A mold for injection molding according to claim 1, characterized in that: The fixed pipe (10) and the gas conveying cavity (9) are arranged in interpenetration, and the fixed pipe (10) and the gas conveying cavity (9).
7. The mold for injection molding according to claim 1, wherein: The reset mechanism comprises a reset rod (22) and a fixed plate (23), the reset rod (22) is fixedly connected to the top end of the second connecting rod (20), the fixed plate (23) is fixedly connected to the right side wall of the mounting rack (6), the top end of the reset rod (22) movably penetrates the fixed plate (23) and movably sleeves the second spring (24), the top end of the reset rod (22) is fixedly connected with a top plate (25), the bottom end of the second spring (24) is fixedly connected with the fixed plate (23), and the top end of the second spring (24) is fixedly connected with the top plate (25).