Medical instrument production mold convenient to demold

Abstract

The mold comprises an upper mold body and a lower mold body, a first groove is formed in the side wall, corresponding to the lower mold body, of the upper mold body, a sliding groove is formed in the first groove, the sliding groove is perpendicular to the center line of a cavity, the sliding groove is slidably connected with a linear motor, and a connecting plate is arranged at the end, close to the lower mold body, of the linear motor; the side wall, close to the cavity, of the connecting plate is provided with a demolding piece, the lower mold is provided with a second groove, the second groove corresponds to the sliding groove, and the demolding piece and the connecting plate are contained in the second groove. Product demolding can be completed in the separation process of the upper mold and the lower mold, and the production efficiency of injection molding products, especially partial medical semi-closed structure products such as bottle blanks is improved.

Description

Technical Field

[0001] The present application relates to the technical field of mold design, and in particular to a mold for medical device production that is easy to demould. Background Art

[0002] An injection mold is a tool for producing plastic products. It is also a tool that gives plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the process of injecting heated and melted plastic into the mold cavity under high pressure by an injection molding machine, and obtaining a molded product after cooling and solidification.

[0003] In the manufacturing process of some medical products with semi-closed structures such as bottle embryos, after such products are formed in the mold cavity, the area suitable for ejection is small, which makes demolding difficult and affects production efficiency. Utility Model Content

[0004] In view of the above problems, the present application is proposed to provide a mold for medical device production that is convenient for demoulding and overcomes the above problems or at least partially solves the above problems, comprising:

[0005] A mold for producing medical devices that is easy to demould, comprising an upper mold with a mold cavity and a lower mold with a mold core;

[0006] A first groove is provided on the lower wall of the upper mold, a slide groove is provided in the first groove, the slide groove is perpendicular to the center line of the cavity, a linear motor is slidably connected to the slide groove, a connecting plate is provided at one end of the linear motor close to the lower mold, and a demoulding piece is provided on the connecting plate close to the side wall of the cavity;

[0007] The lower mold is provided with a second groove, the second groove corresponds to the slide groove, and the demoulding member and the connecting plate are accommodated in the second groove;

[0008] When the upper mold moves up to the first height, the demoulding member is separated from the second groove, and the linear motor drives the demoulding member to move to one end of the slide groove close to the cavity, and a side wall of the demoulding member is fitted with the molded product;

[0009] When the upper mold moves up to a second height, the demolding member drives the molded product to separate from the core; wherein the second height is higher than the first height.

[0010] Preferably, the upper mold array is provided with at least two of the first grooves, each of the first grooves is provided with the slide groove, the linear motor, the connecting plate and the demolding member, and the lower mold is provided with the second groove corresponding to each of the first grooves.

[0011] Preferably, limit switches electrically connected to the linear motor are respectively provided at both ends of the slide slot.

[0012] Preferably, an electric telescopic motor is further provided at one end of the linear motor close to the lower mold, and the connecting plate is connected to the power telescopic end of the electric telescopic motor.

[0013] Preferably, the demoulding piece is provided with a rubber layer on the side wall thereof for fitting to the molded product.

[0014] Preferably, two sliding grooves are symmetrically arranged in the first groove.

[0015] Preferably, one end of the first groove passes through to the outside of the upper mold.

[0016] Preferably, a suction hole is provided through the demoulding piece, and the connecting plate is provided with a micro vacuum pump, which is connected to the suction hole.

[0017] This application has the following advantages:

[0018] In an embodiment of the present application, with respect to the technical problem of "difficult demoulding and affecting production efficiency" in the prior art, the present application provides a solution for a mold for medical device production that is convenient for demoulding, specifically: comprising an upper mold provided with a cavity and a lower mold provided with a core; a first groove is provided on the lower wall of the upper mold, a slide groove is provided in the first groove, the slide groove is perpendicular to the center line of the cavity, a linear motor is slidably connected to the slide groove, a connecting plate is provided at one end of the linear motor close to the lower mold, a demoulding member is provided at the connecting plate close to the side wall of the cavity, a second groove is provided on the lower mold, the second groove corresponds to the slide groove, and the demoulding member and the connecting plate are accommodated in the second groove; when the upper mold moves up to the first height, the demoulding member is separated from the second groove, the linear motor drives the demoulding member to move to one end of the slide groove close to the cavity, and a side wall of the demoulding member is fitted with the molded product; when the upper mold moves up to the second height, the demoulding member drives the molded product to separate from the core; wherein the second height is higher than the first height. When the upper mold and the lower mold are separated to the first height, a channel for the linear movement of the demolding part is formed, and then the linear motor drives the demolding part to move linearly and fit the molded product; due to the friction generated by the fit between the demolding part and the molded product, when the upper mold moves from the first height to the second height, the demolding part also drives the molded product to a position corresponding to the second height, and separates the molded product from the core; through the mold in this embodiment, the product demolding can be completed during the separation of the upper mold and the lower mold, thereby improving the production efficiency of injection molded products, especially some medical semi-closed structure products such as bottle embryos. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the description of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 A schematic structural diagram of a mold for medical device production that facilitates demoulding provided in an embodiment of the present application is shown.

[0021] Figure 2 A schematic structural diagram of a mold for medical device production that is convenient for demoulding provided in an embodiment of the present application is shown.

[0022] The reference numerals in the drawings of the specification are as follows:

[0023] 1. Upper mold; 11. Slide; 12. Linear motor; 13. Connecting plate; 14. Demolding member; 15. First groove; 16. Limit switch; 17. Electric telescopic motor; 18. Rubber layer; 19. Mini vacuum pump; 2. Lower mold; 21. Second groove. DETAILED DESCRIPTION

[0024] In order to make the objects, features and advantages of the present application more obvious and understandable, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0025] Reference Figure 1 and Figure 2 , showing a schematic structural diagram of a mold for medical device production that is convenient for demoulding provided in an embodiment of the present application.

[0026] A mold for producing medical devices with convenient demoulding, comprising an upper mold 1 with a mold cavity and a lower mold 2 with a mold core;

[0027] The lower wall of the upper mold 1 is provided with a first groove 15, a slide groove 11 is provided in the first groove 15, the slide groove 11 is perpendicular to the center line of the cavity, a linear motor 12 is slidably connected in the slide groove 11, and a connecting plate 13 is provided at one end of the linear motor 12 close to the lower mold 2, and a demoulding member 14 is provided on the connecting plate 13 close to the side wall of the cavity;

[0028] The lower mold 2 is provided with a second groove 21, the groove 21 corresponds to the slide groove 11, and the demoulding member 14 and the connecting plate 13 are accommodated in the second groove 21;

[0029] When the upper mold 1 moves up to the first height, the demoulding member 14 is separated from the second groove 21, and the linear motor 12 drives the demoulding member 14 to move to the end of the slide groove 11 close to the cavity, and the side wall of the demoulding member 14 fits with the molded product;

[0030] When the upper mold 1 moves up to a second height, the demolding member 14 drives the molded product to separate from the core; wherein the second height is higher than the first height.

[0031] In the embodiments of the present application, with respect to the technical problem of "demolding is difficult and affects production efficiency" in the prior art, the present application provides a solution for a mold for medical device production that is easy to demold, specifically: comprising an upper mold 1 provided with a cavity and a lower mold 2 provided with a core; the lower wall of the upper mold 1 is provided with a first groove 15, the first groove 15 is provided with a slide groove 11, the slide groove 11 is perpendicular to the center line of the cavity, the slide groove 11 is slidably connected to a linear motor 12, the linear motor 12 is provided with a connecting plate 13 at one end close to the lower mold 2, and the connecting plate 13 is provided with a demolding member 1 close to the side wall of the cavity. 4. The lower mold is provided with a second groove 21, and the second groove 21 corresponds to the slide groove 11, and the demolding member 14 and the connecting plate 13 are accommodated in the second groove 21; when the upper mold 1 moves up to the first height, the demolding member 14 is disengaged from the second groove 21, and the linear motor 12 drives the demolding member 14 to move to one end of the slide groove 11 close to the cavity, and a side wall of the demolding member 14 fits with the molded product; when the upper mold 1 moves up to the second height, the demolding member 14 drives the molded product to separate from the core; wherein, the second height is higher than the first height. When the upper mold 1 and the lower mold 2 are separated to the first height, a channel for the linear movement of the demolding member 14 is formed, and then the linear motor 12 drives the demolding member 14 to move linearly and fit the molded product; due to the friction force generated by the fit between the demolding member 14 and the molded product, during the process of the upper mold 1 moving from the first height to the second height, the demolding member 14 also drives the molded product to a position corresponding to the second height, and separates the molded product from the core; through the mold in this embodiment, the product demolding can be completed during the separation of the upper mold 1 and the lower mold 2, thereby improving the production efficiency of injection molded products, especially some medical semi-closed structure products such as bottle embryos.

[0032] Next, a mold for producing medical devices that is easy to demold in each exemplary embodiment of the present application will be further described.

[0033] In this embodiment, the upper mold 1 array is provided with at least two first grooves 15, each of the first grooves 15 is provided with the slide groove 11, the linear motor 12, the connecting plate 13 and the demolding part 14, and the lower mold 2 is provided with the second groove 21 corresponding to each first groove 15.

[0034] It should be noted that disposing the demoulding members 14 in an array around the product can form a more stable demoulding effect for the product.

[0035] In this embodiment, limit switches 16 electrically connected to the linear motor 12 are respectively provided at both ends of the slide 11. The limit switches 16 provided at both ends of the slide 11 can accurately control the stroke of the linear motor 12.

[0036] In this embodiment, an electric telescopic motor 17 is further provided at one end of the linear motor 12 close to the lower mold 2 , and the connecting plate 13 is connected to the power telescopic end of the electric telescopic motor 17 .

[0037] It should be noted that when the upper mold 1 moves up to the second height, in order to prevent the molded product from being stuck in the mold cavity and unable to fall off freely, the electric telescopic motor 17 is started to drive the demolding member 14 to move the molded product downward, thereby allowing the product to leave the mold cavity.

[0038] In this embodiment, the side wall of the demoulding member 14 for fitting the formed product is provided with a rubber layer 18. The demoulding member 14 is provided with the rubber layer 18 to avoid scratching the product surface and ensure product quality.

[0039] In this embodiment, two sliding grooves 11 are symmetrically arranged in the first groove 15 .

[0040] In this embodiment, one end of the first groove 15 passes through to the outside of the upper mold 1 .

[0041] It should be noted that the penetrating arrangement of the first groove 15 facilitates the installation of the linear motor 12 on the two slide grooves 11 .

[0042] In this embodiment, a suction hole is formed through the demoulding member 14 , and a micro vacuum pump 19 is provided on the connecting plate 13 . The micro vacuum pump 19 is connected to the suction hole.

[0043] It should be noted that the micro vacuum pump 19 provides adsorption force in the suction hole, so that the demoulding piece 14 can fit more firmly with the surface of the product.

[0044] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present application.

[0045] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0046] The above is a detailed introduction to a mold for medical device production that is easy to demold provided by the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A mold for medical device production that is easy to demould, characterized in that: It includes an upper mold with a cavity and a lower mold with a core; A first groove is provided on the lower wall of the upper mold, a slide groove is provided in the first groove, the slide groove is perpendicular to the center line of the cavity, a linear motor is slidably connected to the slide groove, a connecting plate is provided at one end of the linear motor close to the lower mold, and a demoulding piece is provided on the connecting plate close to the side wall of the cavity; The lower mold is provided with a second groove, the second groove corresponds to the slide groove, and the demoulding member and the connecting plate are accommodated in the second groove; When the upper mold moves up to the first height, the demoulding member is separated from the second groove, and the linear motor drives the demoulding member to move to one end of the slide groove close to the cavity, and a side wall of the demoulding member is fitted with the molded product; When the upper mold moves up to a second height, the demolding member drives the molded product to separate from the core; wherein the second height is higher than the first height.

2. The mold for medical device production that is easy to demould according to claim 1, characterized in that: The upper mold array is provided with at least two of the first grooves, each of the first grooves is provided with the slide groove, the linear motor, the connecting plate and the demolding member, and the lower mold is provided with the second groove corresponding to each of the first grooves.

3. The mold for medical device production that is easy to demould according to claim 1, characterized in that: Limit switches electrically connected to the linear motor are respectively provided at both ends of the slideway.

4. The mold for medical device production with easy demoulding according to claim 1, characterized in that: An electric telescopic motor is also provided at one end of the linear motor close to the lower die, and the connecting plate is connected to the power telescopic end of the electric telescopic motor.

5. The mold for medical device production with easy demoulding according to claim 1, characterized in that: The demoulding piece is used to fit the side wall of the formed product and is provided with a rubber layer.

6. The mold for medical device production with easy demoulding according to claim 1, characterized in that: Two sliding grooves are symmetrically arranged in the first groove.

7. The mold for medical device production with easy demoulding according to claim 6, characterized in that: One end of the first groove passes through the outside of the upper mold.

8. The mold for medical device production with easy demoulding according to claim 1, characterized in that: A suction hole is penetrated through the demoulding piece, and a micro vacuum pump is provided on the connecting plate, and the vacuum pump is communicated with the suction hole.

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