Mold and injection molding equipment
By using a strong pulling mechanism instead of spring in the mold, the tension is provided by the cooperation of the reset rod, limit block and limit column, the problem of spring failure at high temperature is solved, and the stability and product quality of the mold in high temperature environment are improved. .
Patent Information
- Application Number
- CN202421268634.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-06-04
AI Technical Summary
When existing molds use springs to push the thimble plate in high temperature environments, the springs are prone to failure, resulting in the thimble being unable to achieve ejection action, affecting product quality.
A strong pulling mechanism is used instead of the spring, and the tension drives the movement of the thimble plate and the thimble through the cooperation of the reset rod, limit block and limit column.
In high temperature environment, the structure of the strong pulling mechanism is more stable, reducing the risk of failure and ensuring the stability of the mold and product quality.
Smart Images
Figure CN222511991U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of production and manufacture of moulds, in particular to a mould and injection molding equipment. Background Art
[0002] In the prior art, when the features of the product and the corresponding template are complex, the risk of the product adhering to the template needs to be considered. In order to avoid this situation, the template usually needs to add an ejection mechanism to avoid the occurrence of adhering to the template, including an ejector plate and an ejector. The ejector is ejected synchronously when the mold is opened. In order to achieve this function, a spring needs to be installed on the ejector plate to push the ejector plate. However, the spring is prone to failure when working for a long time at high temperature, resulting in the ejector being unable to achieve the ejection action, thereby affecting the product quality. Utility Model Content
[0003] The purpose of this application is to provide a mold and injection molding equipment.
[0004] The present application provides a mold, comprising a first template, the first template comprising a receiving cavity; a second template, a molding cavity is formed between the first template and the second template; an ejection mechanism, the ejection mechanism comprising an ejector plate and an ejector, the ejector plate is movably arranged in the receiving cavity, the ejector is connected to the ejector plate and extends to the molding cavity; a strong pulling mechanism, the strong pulling mechanism comprising: a reset rod, the reset rod is connected to the ejector plate and extends to the second template, the reset rod is provided with a limiting groove; a first limiting assembly, the first limiting assembly is arranged on the first template, the first limiting assembly comprises a limiting block, the limiting block comprises a limiting block arranged at an interval, and the reset rod extends into the interval of the limiting block; a second limiting assembly, the second limiting assembly is arranged on the second template, the second limiting assembly is arranged on the second template, and the second limiting assembly is arranged on the second template. The limit assembly includes a fixed block and a limit column, the fixed block is provided with a countersunk hole, a sliding hole and a first receiving groove, the countersunk hole is coaxially arranged with the reset rod, the peripheral side of the fixed block is formed with the first receiving groove extending in the same direction as the countersunk hole, the sliding hole intersects with part of the countersunk hole, and the sliding hole intersects with part of the first receiving groove, and the limit column is movably arranged in the sliding hole; wherein, the reset rod can be inserted into the countersunk hole, and the limit block can be inserted into the first receiving groove; when the limit is located at the interval, the limit block can push against the limit column to be located in the limit groove, pull the reset rod to move toward the second template, thereby pulling the ejector plate to move in the receiving groove to push the ejector to move toward the molding cavity.
[0005] In an exemplary embodiment of the present application, after the first template and the second template are molded together, the first template and the second template are close to each other, the reset rod is inserted into the interval of the limit block and then extends to the countersunk hole, and the limit column is located in the limit groove; when the first template and the second template are molded together, the first template and the second template are away from each other, and the ejector plate is driven to move toward the second template in the accommodating cavity through the limiting cooperation of the reset rod, the first limiting assembly and the second limiting assembly, thereby causing the ejector to move toward the molding cavity.
[0006] In an exemplary embodiment of the present application, the interval between the limit blocks includes a first interval and a second interval, the second interval is located on the side of the first interval close to the second template, the width of the second interval is greater than the width of the first interval, and when the limit column is located in the first interval, the limit block can push against the limit column located in the limit groove, pulling the reset rod to move toward the second template; when the limit column is located in the second interval, the limit column can move away from the limit groove to make the reset rod detach from the fixed block.
[0007] In an exemplary embodiment of the present application, the limit block is provided with a first arcuate surface and a second arcuate surface, the first arcuate surface is located on a side of the second interval close to the first interval, the second arcuate surface is located on a side of the second interval away from the second interval, the arcuate portion of the first arcuate surface is away from the second interval, and the arcuate portion of the second arcuate surface is away from the second interval; the reset rod is provided with a third arcuate surface and a fourth arcuate surface, the third arcuate surface and the fourth arcuate surface connect the bottom of the limit groove and the side of the limit groove, and the third arcuate surface and the fourth arcuate surface are symmetrically arranged in the axial direction.
[0008] In an exemplary embodiment of the present application, the first limiting component is provided with a through hole connected to the interval of the limiting block, and the through hole is located on a side of the interval away from the second limiting component.
[0009] In an exemplary embodiment of the present application, along the direction from the bottom of the first receiving groove to the groove mouth, the thickness of the limit block is greater than the depth of the first receiving groove; the second template is provided with a first installation groove and a second receiving groove, the fixed block is arranged in the first installation groove, the second receiving groove and the first receiving groove are arranged correspondingly, and the limit block is movably arranged in the first receiving groove and the second receiving groove.
[0010] In an exemplary embodiment of the present application, the ejector plate includes a first ejector plate and a second ejector plate that abut against each other, a plurality of second mounting grooves are provided on a side of the first ejector plate close to the second ejector plate, and both the ejector and the reset rod are provided with a limiting protrusion, and the limiting protrusion is located in the second mounting groove.
[0011] In an exemplary embodiment of the present application, a guide rod is inserted into the first template from a side away from the molding cavity, and the guide rod passes through the ejector plate in the accommodating cavity; an elastic member, the first ejector plate is provided with an elastic member mounting hole, the elastic member is arranged in the elastic member mounting hole, one end of the elastic member abuts against the second ejector plate, and the other end of the elastic member abuts against the side wall of the accommodating cavity.
[0012] In an exemplary embodiment of the present application, the mold further includes a guide sleeve and a guide column, the ejector plate is provided with a guide sleeve mounting hole, the guide sleeve is arranged in the guide sleeve mounting hole, and the guide column is connected to the side wall of the accommodating cavity and extends into the guide sleeve.
[0013] The present application also provides an injection molding device, comprising the mold.
[0014] A mold and injection molding equipment of the present application scheme has the following beneficial effects: the ejector plate is movably arranged in the accommodating cavity, the ejector is connected to the ejector plate and extends to the molding cavity, and molten plastic is injected into the molding cavity during the product forming process. After the product is formed, the ejector plate pushes the ejector to move toward the molding cavity to push the product away from the first template and / or the second template. The strong pulling mechanism can provide pulling force to the ejector plate within a certain stroke. When the first template and the second template are molded, the reset rod is inserted into the sink hole, the limit block is inserted into the first accommodating groove, the limit column is located in the interval between the limit blocks, and the limit block can push the limit column located in the limit groove. When the first template and the second template are opened, the limit column and the limit groove that push against each other provide pulling force to the reset rod, pulling the reset rod to move toward the second template, thereby pulling the ejector plate to move toward the second template in the accommodating cavity, so as to push the ejector to eject the product adhering to the first template into the molding cavity. Compared with using a spring to push the ejector plate, the strong pulling mechanism described above has better stability in a high temperature environment due to the absence of a spring, and can reduce the risk of failure of the strong pulling mechanism to maintain the stability of the mold, thereby ensuring product quality.
[0015] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.
[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0018] Figure 1 It is a structural schematic diagram of a mold in an embodiment of the utility model;
[0019] Figure 2 It is a structural schematic diagram of a mold in a mold closing state in an embodiment of the utility model;
[0020] Figure 3 This is a schematic diagram of the structure of a mold when opening a mold in an embodiment of the utility model;
[0021] Figure 4 It is a cross-sectional schematic diagram of the strong pulling mechanism in the embodiment of the utility model after the mold is closed;
[0022] Figure 5 It is a first cross-sectional schematic diagram of the strong pulling mechanism in the embodiment of the utility model when the mold is opened;
[0023] Figure 6 It is a second cross-sectional schematic diagram of the strong pulling mechanism in the embodiment of the utility model when the mold is opened;
[0024] Figure 7 It is a cross-sectional schematic diagram of the strong pulling mechanism in the embodiment of the utility model after the mold is opened;
[0025] Figure 8 yes Figure 2 The enlarged schematic diagram of point A in the middle;
[0026] Fig. 9 It is an exploded schematic diagram of the first limit assembly and the reset rod in the embodiment of the utility model;
[0027] Fig.10 1 is an exploded schematic diagram of the second position limiting component in the embodiment of the utility model;
[0028] Fig.11 It is a structural schematic diagram of an ejector plate, an ejector, a reset rod, an elastic member, and a guide rod in an embodiment of the utility model.
[0029] Description of reference numerals:
[0030] 10. First template; 20. Second template; 21. First mounting groove; 22. Second accommodating groove; 30. Molding cavity; 40. Ejector mechanism; 41. Ejector plate; 411. First ejector plate; 4111. Elastic member mounting hole; 412. Second ejector plate; 413. Guide sleeve mounting hole; 42. Ejector; 50. Strong pulling mechanism; 51. Reset rod; 511. Third arc surface; 512. Fourth arc surface; 513. Limiting groove; 52. First limiting assembly; 521 , limit block; D, interval; D1, first interval; D2, second interval; 5211, first arcuate surface; 5212, second arcuate surface; 5213, through hole; 53, second limit assembly; 531, fixing block; 5311, countersunk hole; 5312, sliding hole; 5313, first accommodating groove; 53131, groove bottom; 53132, notch; 532, limit column; 60, guide rod; 70, elastic member; 80, guide sleeve; 90, guide column; 1, locking member. DETAILED DESCRIPTION
[0031] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.
[0032] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.
[0033] The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application.
[0034] It should be noted that the "multiple" mentioned in this article refers to two or more. "And / or" describes the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.
[0035] In the prior art, when the features of the product and the corresponding template are complex, the risk of the product adhering to the template needs to be considered. In order to avoid this situation, the template usually needs to add an ejection mechanism to avoid the occurrence of adhering to the template, including an ejector plate and an ejector. The ejector is ejected synchronously when the mold is opened. In order to achieve this function, a spring needs to be installed on the ejector plate to push the ejector plate. However, the spring is prone to failure when working for a long time at high temperature, resulting in the ejector being unable to achieve the ejection action, thereby affecting the product quality.
[0036] In order to solve the above technical problems, this application refers to Figures 1 to 9 As shown, a mold is provided, including a first template 10, a second template 20, an ejection mechanism 40 and a strong pulling mechanism 50.
[0037] In some embodiments, reference Figures 1 to 9 As shown, the first template 10 includes a accommodating cavity; a molding cavity 30 is formed between the first template 10 and the second template 20; the ejection mechanism 40 includes an ejector plate 41 and an ejector pin 42, the ejector plate 41 is movably arranged in the accommodating cavity, and the ejector pin 42 is connected to the ejector plate 41 and extends to the molding cavity 30; the strong pulling mechanism 50 includes a reset rod 51, a first limiting assembly 52 and a second limiting assembly 53; the reset rod 51 is connected to the ejector plate 41 and extends to the second template 20, and the reset rod 51 is provided with a limiting groove 513; the first limiting assembly 52 is arranged on the first template 10, the first limiting assembly 52 includes a limiting block 521 arranged at an interval D, and the reset rod 51 extends into the interval D; the second limiting assembly 53 is arranged on the second template 20, the second limiting assembly 53 includes a fixing block 531 and a limiting column 532, and the fixing block 531 is formed with a sink hole 531 1. The sliding hole 5312 and the first accommodating groove 5313, the countersunk hole 5311 is coaxially arranged with the reset rod 51, and the first accommodating groove 5313 extending in the same direction as the countersunk hole 5311 is formed on the peripheral side of the fixed block 531, the sliding hole 5312 partially intersects with the countersunk hole 5311, and the sliding hole 5312 partially intersects with the first accommodating groove 5313, and the limiting column 532 is movably arranged in the sliding hole 5312; wherein, the reset rod 51 can be inserted into the countersunk hole 5311, and the limiting block 521 can be inserted into the first accommodating groove 5313; when the limit is located at the interval D, the limiting block 521 can push against the limiting column 532 located in the limiting groove 513, and pull the reset rod 51 to move toward the second template 20, thereby pulling the ejector plate 41 to move in the accommodating groove to push the ejector 42 to move toward the molding cavity 30.
[0038] In this embodiment, the ejector plate 41 is movably disposed in the accommodating cavity, the ejector pin 42 is connected to the ejector plate 41 and extends to the molding cavity 30, and molten plastic is injected into the molding cavity 30 during the product forming process. After the product is formed, the ejector plate 41 pushes the ejector pin 42 to move toward the molding cavity 30, thereby pushing the product away from the first template 10 and / or the second template 20. The strong pulling mechanism 50 can provide pulling force to the ejector plate 41 within a certain stroke. When the first template 10 and the second template 20 are molded together, the reset rod 51 is inserted into the sink hole 5311, the limit block 521 is inserted into the first receiving groove 5313, the limit column 532 is located at the interval D between the limit blocks 521, and the limit block 521 can abut the limit column 532 located in the limit groove 513. When the first template 10 and the second template 20 are molded together, the limit column 532 and the limit groove 513 abutting against each other provide a pulling force to the reset rod 51, pulling the reset rod 51 to move toward the second template 20, thereby pulling the ejector plate 41 to move toward the second template 20 in the receiving cavity, so as to push the ejector 42 to eject the product adhered to the first template 10 into the molding cavity 30. Compared with using a spring to push the ejector plate 41, the use of the above-mentioned strong pulling mechanism 50 has better stability in a high temperature environment due to the absence of a spring, and can reduce the risk of failure of the strong pulling mechanism 50, so as to maintain the stability of the mold and thus ensure product quality.
[0039] In some embodiments, reference Figures 2 to 7 As shown, during the product manufacturing process, the first template 10 and the second template 20 have a mold closing and a mold closing (such as Figure 4 As shown), when opening the mold (as shown Figure 5 and Figure 6 After mold opening (such as Figure 7 The states are executed cyclically in sequence.
[0040] In some embodiments, reference Figure 2 As shown, after the first template 10 and the second template 20 are molded together, the first template 10 and the second template 20 are close to each other and combined. Figure 4 As shown, the first limit assembly 52 and the second limit assembly 53 abut against each other, the reset rod 51 is inserted into the interval D of the limit block 521 and extends into the countersunk hole 5311, and the end of the reset rod 51 and the bottom of the countersunk hole 5311 abut against each other, and the limit block 521 abuts against the limit column 532 and moves to the side close to the limit groove 513 and is located in the limit groove 513.
[0041] In some embodiments, reference Figure 3 As shown, when the first template 10 and the second template 20 are opened, the first template 10 and the second template 20 are separated from each other and combined. Figure 5As shown, the fixing block 531 moves away from the first template 10 at the interval D of the limiting block 521. Since the limiting column 532 is pressed against by the limiting block 521 and fits in the limiting groove 513, the reset rod 51 is pulled to move at the interval D of the limiting block 521. Figure 6 As shown, until it moves to the disengagement interval D, the limiting column 532 is no longer restricted by the limiting block 521 and moves in the sliding hole 5312 to the side away from the limiting groove 513 until it is disengaged from the limiting groove 513, so that the reset rod 51 is no longer affected by the pulling force of the second limiting assembly 53.
[0042] In some embodiments, reference Figure 7 As shown, after the first mold 10 and the second mold 20 are opened, the first mold 10 and the second mold 20 move away from a certain stroke, and the static limit column 532 and the reset rod 51 return to the initial state, ready for mold closing (i.e., the mold closing state). The principles of mold closing and mold opening, mold closing and mold opening are the same except for the different movement directions and the different positions of the components. The state of mold closing is not specifically limited here, and can be referred to the state of mold opening.
[0043] In some embodiments, reference Figures 8 to 10 As shown, the first limiting assembly 52 and the second limiting assembly 53 are respectively fixed to the first template 10 and the second template 20 by the locking member 1. Specifically, the first limiting assembly 52 and the second limiting assembly 53 are located on the peripheral side of the molding cavity 30. The countersunk hole 5311 and the reset rod 51 cooperate with each other, and their shapes and sizes correspond to each other. The shapes and sizes are not specifically limited here; the limiting block 521 and the first accommodating groove 5313 cooperate with each other, and their shapes and sizes correspond to each other. The shapes and sizes are not specifically limited here.
[0044] In some embodiments, in combination Figure 8 and Fig. 9 As shown, the width of the limit block 521 of the first limit assembly 52 is smaller than the width of the main body of the first limit assembly 52, so as to be able to cooperate with the first accommodating groove 5313 of the second limit assembly 53, the number of the limit blocks 521 is configured to be two, and the limit blocks 521 are symmetrically arranged at an interval D. The first limit assembly 52 is provided with a through hole 5213 connected to the interval D of the limit block 521, and the through hole 5213 is located on the side of the interval D away from the second limit assembly 53, and the through hole 5213 is used for the reset rod 51 to pass through.
[0045] In some embodiments, in combination Figure 8 and Fig.10As shown, the second limiting component 53 is configured with two first accommodating grooves 5313, and the two first accommodating grooves 5313 are symmetrically arranged on the peripheral side of the countersunk hole 5311, and the corresponding limiting members are also stacked to be able to evenly bear the force and reduce the friction between the first limiting component 52 and the second limiting component 53 when pulling.
[0046] In some embodiments, reference Figure 8 and Fig.10 As shown, the interval D between the limit blocks 521 includes a first interval D1 and a second interval D2, the second interval D2 is located on the side of the first interval D1 close to the second template 20, the width of the second interval D2 is greater than the width of the first interval D1, when the limit column 532 is located in the first interval D1, the limit block 521 can push against the limit column 532 located in the limit groove 513, and pull the reset rod 51 to move toward the second template 20; when the limit column 532 is located in the second interval D2, the limit column 532 can move away from the limit groove 513 to make the reset rod 51 separate from the fixed block 531.
[0047] In some embodiments, reference Figure 8 and Fig.10 As shown, the limit block 521 is provided with a first arcuate surface 5211 and a second arcuate surface 5212, the first arcuate surface 5211 is located on a side of the second interval D2 close to the first interval D1, the second arcuate surface 5212 is located on a side of the second interval D2 away from the second interval D2, the arcuate portion of the first arcuate surface 5211 is away from the second interval D2, and the arcuate portion of the second arcuate surface 5212 is away from the second interval D2; the reset rod 51 is provided with a third arcuate surface 511 and a fourth arcuate surface 512, the third arcuate surface 511 and the fourth arcuate surface 512 connect the bottom of the limiting groove 513 and the side of the limiting groove 513, and the third arcuate surface 511 and the fourth arcuate surface 512 are symmetrically arranged in the axial direction. By providing the first arc surface 5211, the second arc surface 5212, the third arc surface 511 and the fourth arc surface 512, it is convenient for the limiting column 532 to be in one of the limiting groove 513 and the second interval D2, thereby reducing the risk of the limiting column 532 being stuck in the limiting groove 513 and the second interval D2.
[0048] In some embodiments, reference Figure 8 and Fig.10As shown, along the direction from the bottom 53131 of the first receiving groove 5313 to the notch 53132, the thickness of the limit block 521 is greater than the depth of the first receiving groove 5313; the second template 20 is provided with a first installation groove 21 and a second receiving groove 22, the fixed block 531 is provided in the first installation groove 21, the second receiving groove 22 and the first receiving groove 5313 are provided correspondingly, and the limit block 521 is movably provided in the first receiving groove 5313 and the second receiving groove 22. The width of the limit block 521 is larger in order to improve the structural strength of the limit block 521, but it is also necessary to enable the limit block 521 to have a sufficient moving stroke while ensuring the force bearing capacity, so it is necessary to provide the second receiving groove 22 on the second template 20 so that the limit block 521 can be inserted into the second template 20. It can be understood that the first installation groove 21 matches the fixed block 531, and the first installation groove 21 is used to install the fixed block 531.
[0049] In some embodiments, reference Fig.11 As shown, the ejector plate 41 includes a first ejector plate 411 and a second ejector plate 412 that abut against each other. A plurality of second mounting grooves are provided on one side of the first ejector plate 411 close to the second ejector plate 412. Both the ejector pin 42 and the reset rod 51 are provided with a limiting protrusion, and the limiting protrusion is located in the second mounting groove. After the first ejector plate 411 and the second ejector plate 412 cooperate with the supporting mounting protrusion, the ejector pin 42 can be fixedly connected to the ejector plate 41, so that the ejector pin 42 is driven to move by the movement of the reset rod 51.
[0050] In some embodiments, reference Figures 1 to 11 As shown, the mold also includes a guide rod 60 and an elastic member 70. The guide rod 60 is inserted into the first template 10 from the side away from the molding cavity 30, and the guide rod 60 passes through the ejector plate 41 in the accommodating cavity; the first ejector plate 411 is provided with an elastic member 70 mounting hole 4111, and the elastic member 70 is arranged in the elastic member 70 mounting hole 4111, one end of the elastic member 70 abuts against the second ejector plate 412, and the other end of the elastic member 70 abuts against the side wall of the accommodating cavity. The elastic member 70 applies elastic force to the ejector plate 41, so that the ejector plate 41 moves in the direction of the second template 20 in the accommodating cavity when the first template 10 and the second template 20 are opened, thereby pushing the ejector 42 to move toward the molding cavity 30. The elastic member 70 and the strong pulling structure cooperate with each other to further ensure the stability of the mold, so that when the first template 10 and the second template 20 are opened, if either the elastic member 70 or the strong pulling structure fails, the ejector plate 41 is still forced to push the ejector 42 to move toward the molding cavity 30.
[0051] In some embodiments, reference Figures 1 to 11As shown, the mold further includes a guide sleeve 80 and a guide column 90. The ejector plate 41 is provided with a guide sleeve mounting hole 413. The guide sleeve 80 is arranged in the guide sleeve mounting hole 413. The guide column 90 is connected to the side wall of the accommodating cavity and extends into the guide sleeve 80. The cooperation of the guide sleeve 80 and the guide column 90 can guide the movement of the ejector plate 41 in the accommodating cavity, reduce the risk of the ejector plate 41 and the ejector 42 being unable to move in the accommodating cavity due to the cooperation error, and facilitate installation and maintenance.
[0052] In the present application, during the product manufacturing process, the first template 10 and the second template 20 have a mold closing and a mold closing (such as Figure 4 As shown), when opening the mold (as shown Figure 5 and Figure 6 After mold opening (such as Figure 7 When the first template 10 and the second template 20 are opened, the limiting column 532 and the limiting groove 513 abutting against each other provide a pulling force to the reset rod 51, pulling the reset rod 51 to move toward the second template 20, thereby pulling the ejector plate 41 to move toward the second template 20 in the accommodating cavity, so as to push the ejector 42 to eject the product adhered to the first template 10 into the molding cavity 30. Compared with using a spring to push the ejector plate 41, the use of the above-mentioned strong pulling mechanism 50 has better stability in a high temperature environment due to the absence of a spring, and can reduce the risk of failure of the strong pulling mechanism 50, so as to maintain the stability of the mold and thus ensure product quality.
[0053] The present application also provides an injection molding device, comprising the above-mentioned mold.
[0054] In this application, unless otherwise clearly specified and limited, the terms "disposed (provided with)", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0055] In the description of this specification, the description of reference terms such as "some embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment are included in at least one embodiment of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to 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 examples described in this specification and the features of different embodiments or examples without contradiction.
[0056] 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 understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and description of the present application should fall within the scope of the patent of this application.
Claims
1. A mold, characterized in that: include: A first template, wherein the first template includes a receiving cavity; a second template, wherein a molding cavity is formed between the first template and the second template; An ejection mechanism, the ejection mechanism comprising an ejector plate and an ejector pin, the ejector plate being movably disposed in the accommodating cavity, the ejector pin being connected to the ejector plate and extending to the molding cavity; A strong pulling mechanism, the strong pulling mechanism comprising: A reset rod, the reset rod is connected to the ejector plate and extends toward the second template, and the reset rod is provided with a limiting groove; A first limiting assembly, the first limiting assembly is arranged on the first template, the first limiting assembly comprises limiting blocks arranged at intervals, and the reset rod extends into the intervals of the limiting blocks; A second limiting assembly, the second limiting assembly is arranged on the second template, the second limiting assembly includes a fixed block and a limiting column, the fixed block is formed with a countersunk hole, a sliding hole and a first receiving groove, the countersunk hole is coaxially arranged with the reset rod, the peripheral side of the fixed block is formed with the first receiving groove extending in the same direction as the countersunk hole, the sliding hole intersects with the countersunk hole part, and the sliding hole intersects with the first receiving groove part, and the limiting column is movably arranged in the sliding hole; Among them, the reset rod can be inserted into the sink hole, and the limit block can be inserted into the first receiving groove; when the limit is located at the interval, the limit block can push against the limit column located in the limit groove, pull the reset rod to move toward the second template, thereby pulling the ejector plate to move in the receiving groove, so as to push the ejector to move toward the molding cavity.
2. The mold according to claim 1, characterized in that: After the first template and the second template are closed, the first template and the second template are close to each other, the reset rod is inserted into the interval of the limit block and then extends to the countersunk hole, and the limit column is located in the limit groove; when the first template and the second template are opened, the first template and the second template are away from each other, and the ejector plate is driven to move toward the second template in the accommodating cavity through the limiting cooperation of the reset rod, the first limiting assembly and the second limiting assembly, thereby causing the ejector to move toward the molding cavity.
3. The mold according to claim 1, characterized in that: The interval between the limit blocks includes a first interval and a second interval, the second interval is located on the side of the first interval close to the second template, the width of the second interval is greater than the width of the first interval, when the limit column is located in the first interval, the limit block can push against the limit column located in the limit groove, and pull the reset rod to move toward the second template; when the limit column is located in the second interval, the limit column can move away from the limit groove to make the reset rod detach from the fixed block.
4. The mold according to claim 3, characterized in that: The limit block is provided with a first arcuate surface and a second arcuate surface, the first arcuate surface is located on a side of the second interval close to the first interval, the second arcuate surface is located on a side of the second interval away from the second interval, the arcuate portion of the first arcuate surface is away from the second interval, and the arcuate portion of the second arcuate surface is away from the second interval; The reset rod is provided with a third arc surface and a fourth arc surface, the third arc surface and the fourth arc surface connect the bottom of the limiting groove and the side surface of the limiting groove, and the third arc surface and the fourth arc surface are symmetrically arranged in the axial direction.
5. The mold according to claim 1, characterized in that: The first limiting component is provided with a through hole connected to the interval of the limiting block, and the through hole is located on a side of the interval away from the second limiting component.
6. The mold according to claim 1, characterized in that: Along the direction from the bottom of the first receiving groove to the groove opening, the thickness of the limit block is greater than the depth of the first receiving groove; The second template is provided with a first installation groove and a second receiving groove, the fixing block is arranged in the first installation groove, the second receiving groove and the first receiving groove are arranged correspondingly, and the limiting block is movably arranged in the first receiving groove and the second receiving groove.
7. The mold according to claim 1, characterized in that: The ejector plate includes a first ejector plate and a second ejector plate which abut against each other, a side of the first ejector plate close to the second ejector plate is provided with a plurality of second mounting grooves, the ejector and the reset rod are both provided with a limiting protrusion, and the limiting protrusion is located in the second mounting groove.
8. The mold according to claim 7, characterized in that: The mold further comprises: A guide rod, the guide rod is inserted into the first template from a side away from the molding cavity, and the guide rod passes through the ejector plate in the accommodating cavity; The elastic member, the first ejector plate is provided with an elastic member mounting hole, the elastic member is arranged in the elastic member mounting hole, one end of the elastic member abuts against the second ejector plate, and the other end of the elastic member abuts against the side wall of the accommodating cavity.
9. The mold according to claim 1, characterized in that: The mold further comprises a guide sleeve and a guide column. The ejector plate is provided with a guide sleeve mounting hole. The guide sleeve is arranged in the guide sleeve mounting hole. The guide column is connected to the side wall of the accommodating cavity and extends into the guide sleeve.
10. An injection molding device, characterized in that: The mold comprising any one of claims 1 to 9.