An automatic demolding device for threaded products

Abstract

This utility model relates to an automatic demolding device for threaded products, comprising a first base and a second base. The first base is provided with an injection groove, and the second base is provided with a placement groove. A forming part is placed in the placement groove. The forming part includes a forming end and a rotating end. A threaded groove is provided on the outer side of the forming end, and a helical groove is provided on the rotating end. The automatic demolding device for threaded products of this utility model utilizes the connection structure between the slider and the rotating end to convert linear movement into rotational motion of the forming part, avoiding the drawbacks of directly using a rotary drive mechanism for control.

Description

Technical Field

[0001] This utility model belongs to the field of medical technology, specifically an automatic demolding device for threaded products. Background Technology

[0002] Currently, the medical industry requires needle structures with nut-like features, which are typically injection molded. Existing demolding methods mainly involve setting up a rotary demolding mechanism within the mold. Specifically, after mold opening, an external power source (such as a hydraulic motor or servo motor) directly drives the mold component with the threaded core to rotate, causing the threaded core to unscrew from the internal threads of the product, thus achieving demolding.

[0003] However, this traditional direct rotary drive method has many drawbacks. First, it typically requires installing a separate drive motor and a complex transmission system inside or near the mold. This not only significantly increases the overall structural complexity and manufacturing cost of the mold but also makes the mold much larger, occupying more space within the injection molding machine. Second, the installation location of the motor and the wiring layout impose significant constraints on the mold design, and maintenance and repair are relatively inconvenient. More importantly, for large injection molding machines or production lines with limited space, equipping each cavity producing internal threads with a separate rotary drive system is inefficient in terms of both economy and space utilization. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] Given the following technical problems in the existing technology: the existing method of unscrewing threaded products requires the use of equipment that directly outputs rotational motion, but such equipment occupies too much space, resulting in a large overall mold size.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an automatic demolding device for threaded products, comprising,

[0007] A first substrate and a second substrate, wherein the first substrate is provided with an injection groove and the second substrate is provided with a placement groove, wherein a molded part is provided in the placement groove, the molded part includes a forming end and a rotating end, the outer side of the forming end is provided with a threaded groove and the rotating end is provided with a helical groove.

[0008] As a preferred technical solution for an automatic demolding device for threaded products, one end of the forming end is provided with a truncated cone, the end of the truncated cone is provided with an end post, the threaded groove is provided on the outside of the end post, and the end post is placed in the injection molding groove.

[0009] As a preferred technical solution for an automatic demolding device for threaded products, the end post is provided with a post groove inward, and the post groove is provided with a pin groove inward.

[0010] As a preferred technical solution for an automatic demolding device for threaded products, a first limiting plate is provided at the other end of the forming end, a slot is provided at the end of the first limiting plate, a second limiting plate is provided at the end of the unscrewing end, a locking strip is provided on the side of the second limiting plate, and the locking strip (302b) is embedded in the slot.

[0011] As a preferred technical solution for an automatic demolding device for threaded products, the placement groove is further provided with a limiting groove, the first limiting plate and the second limiting plate are disposed in the limiting groove, and a conical groove is provided at one end of the placement groove, with a cone-shaped platform disposed in the conical groove.

[0012] As a preferred technical solution for an automatic demolding device for threaded products, a third base is also provided on the other side of the second base. The third base has a recessed groove, a slider is fixed in the recessed groove, and a helical line is provided in the slider. The helical line cooperates with the helical groove.

[0013] As a preferred technical solution for an automatic demolding device for threaded products, it also includes a product component, which includes an end cap, a straight groove on the outer side of the end cap, a circular groove in the end cap, an internal thread on the inner wall of the circular groove, the end cap being placed in an injection molding groove, and an end post being placed in the circular groove.

[0014] As a preferred technical solution for an automatic demolding device for threaded products, a cylinder is provided in the circular groove, a needle is provided in the cylinder, the needle is placed in the needle groove, and the cylinder is embedded in the cylinder groove.

[0015] The beneficial effects of this utility model are as follows: The automatic demolding device for threaded products of this utility model uses the connection structure between the slider and the unscrewed end to convert linear movement into rotational motion of the formed part, thus avoiding the drawbacks of directly using a rotary drive mechanism for control. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0018] Figure 2 This is a schematic diagram illustrating the structure of the first substrate and the second substrate in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the molded part in this utility model;

[0020] Figure 4 This is a schematic diagram of the splicing structure of the slider and the forming part in this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the product component in this utility model.

[0022] Reference numerals: 100, First base; 300, Molded part; 301a, Threaded groove; 301, Molded end; 302, Unscrewed end; 302c, Locking strip; 301g, Locking groove; 301f, First limiting plate; 302b, Second limiting plate; 201a, Limiting groove; 201, Placement groove; 301b, Frustum; 201b, Conical groove; 200, Second base; 400, Third base; 401, Countersunk groove; 402, Slider; 403, Helical line; 302a, Helical groove; 500, Product part; 502, Straight groove; 504, Internal thread; 501, End cap; 101, Injection groove; 301c, End post; 503, Circular groove; 506, Needle body; 301e, Needle groove; 505, Cylindrical; 301d, Column groove. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0027] Example 1

[0028] Reference Figures 1-5 This embodiment provides an automatic demolding device for threaded products, including,

[0029] A first substrate 100 and a second substrate 200 are provided. The first substrate 100 is provided with an injection groove 101, and the second substrate 200 is provided with a placement groove 201. A molded part 300 is provided in the placement groove 201. The molded part 300 includes a forming end 301 and a screw-out end 302. A threaded groove 301a is provided on the outer side of the forming end 301, and a helical groove 302a is provided on the screw-out end 302.

[0030] The first base 100 is located on one side of the second base 200. It should be noted that the second base 200 is fixed. The first base 100 and the second base 200 are connected by a lead screw and a guide shaft. The second base 100 can be controlled to move linearly relative to the first base 100 by controlling the lead screw. The specific structure will not be described in detail.

[0031] A cone 301b is provided at one end of the forming end 301, and an end post 301c is provided at the end of the cone 301b. A threaded groove 301a is provided on the outside of the end post 301c, and the end post 301c is placed in the injection molding groove 101.

[0032] The end post 301c has an inward groove 301d, and the groove 301d has an inward groove 301e.

[0033] The other end of the forming end 301 is provided with a first limiting plate 301f, and the end of the first limiting plate 301f is provided with a slot 301g. The end of the unscrewing end 302 is provided with a second limiting plate 302b, and the side of the second limiting plate 302b is provided with a locking strip 302c, which is embedded in the slot 301g.

[0034] With the cooperation of the locking strips 301g and 302c, the forming end 301 and the unscrewing end 302 can rotate synchronously.

[0035] The placement groove 201 is also provided with a limiting groove 201a, and the first limiting plate 301f and the second limiting plate 302b are disposed in the limiting groove 201a. One end of the placement groove 201 is also provided with a conical groove 201b, and the frustum 301b is disposed in the conical groove 201b.

[0036] The conical groove 201b is used to limit the forming part 300 and to position the end post 301c in the injection molding groove 101.

[0037] The first limiting plate 301f and the second limiting plate 302b are provided with gaskets on both sides in the limiting groove to limit the first limiting plate 301f and the second limiting plate 302b on both sides.

[0038] On the other side of the second base 200, a third base 400 is also provided. A groove 401 is provided in the third base 400. A slider 402 is fixed in the groove 401. A helical line 403 is provided in the slider 402. The helical line 403 cooperates with the helical groove 302a.

[0039] It should be noted that the slider 402 can be fixed in the sink 401 by the sealing plate. The third base 400 is also connected to the second base 200 by a lead screw and a guide rod. The third base 400 can be controlled to move linearly relative to the second base 200. Further, refer to... Figure 1 When the third base 400 moves to the left relative to the second base 200, the slider 402 moves linearly relative to the swivel end 302, and the entire forming part 300 is driven to rotate.

[0040] It also includes product component 500, which includes end cap 501. The outer side of end cap 501 is provided with a straight groove 502, and the inner side of end cap 501 is provided with a circular groove 503. The inner wall of circular groove 503 is provided with an internal thread 504. End cap 501 is disposed in injection molding groove 101, and end post 301c is placed in circular groove 503.

[0041] Specifically, the material is injected into the injection groove 101 to form an end cap 501, and a circular groove 503 is formed at the end post 301c. At the same time, the threaded groove 301a forms an internal thread 504 on the inner wall of the circular groove 503.

[0042] A cylinder 505 is provided in the circular groove 503, and a needle body 506 is provided in the cylinder 505. The needle body 506 is placed in the needle groove 301e, and the cylinder 505 is embedded in the cylindrical groove 301d.

[0043] Specifically, the needle body 506 is set in the needle groove 301e, and one end of the needle body 506 is placed in the injection molding groove 101. After injection molding, a part of the material enters the column groove 301d to form a cylinder 505. The injection molding groove 101 is provided with a straight bar structure that can form a straight groove 502, and at the same time, it can prevent the end cap 501 from rotating when the end post 301c exits the circular groove 503. Specifically, when the third base 400 moves to the left relative to the second base 200, the molded part 300 is driven to rotate as a whole. At the same time, the first base 100 moves to the right in a straight line relative to the second base 200. At this time, the end post 301c moves in a straight line while rotating relative to the end cap 501, and the thread groove 301a is screwed out of the circular groove 503 to form an internal thread 504.

[0044] It should be noted that, due to the different pitches of the threaded groove 301a and the helical groove 302a, the moving speeds of the third base 400 and the first base 100 relative to the second base 200 are different.

[0045] Subsequently, when the end cap 501 is fixed in place, the straight strip structure is directly removed from the end cap 501 when the second base 200 moves to the right. The specific method will not be described in detail.

[0046] This application aims to improve the existing technology of mold unscrewing scheme after the internal thread of the end cap 501 is formed. The existing technology uses a direct drive rotation structure, which usually requires a large equipment to drive the rotation. In production, it is more inclined to directly output linear power, which is easier to control and reduces volume. Therefore, the spiral connection structure between the slider 402 and the unscrewing end 302 is used to convert it to save space and improve efficiency.

[0047] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An automatic thread product demolding apparatus characterized by comprising: include, A first substrate (100) and a second substrate (200) are provided. The first substrate (100) is provided with an injection groove (101), and the second substrate (200) is provided with a placement groove (201). A molded part (300) is provided in the placement groove (201). The molded part (300) includes a forming end (301) and a screw-out end (302). A threaded groove (301a) is provided on the outer side of the forming end (301), and a helical groove (302a) is provided on the screw-out end (302).

2. The automatic de-molding apparatus for a threaded product according to claim 1, characterized in that: One end of the forming end (301) is provided with a truncated cone (301b), and the end of the truncated cone (301b) is provided with an end post (301c). The threaded groove (301a) is provided outside the end post (301c), and the end post (301c) is placed in the injection molding groove (101).

3. The automatic de-molding apparatus for a threaded product according to claim 2, characterized in that: The end post (301c) is provided with a post groove (301d) inward, and the post groove (301d) is provided with a needle groove (301e) inward.

4. The automatic de-molding apparatus for a threaded product according to claim 3, characterized in that: The other end of the forming end (301) is provided with a first limiting plate (301f), the end of the first limiting plate (301f) is provided with a slot (301g), the end of the unscrewing end (302) is provided with a second limiting plate (302b), the side of the second limiting plate (302b) is provided with a locking strip (302c), and the locking strip (302c) is embedded in the slot (301g).

5. The automatic de-molding apparatus for a threaded product according to claim 4, characterized in that: The placement groove (201) is also provided with a limiting groove (201a), and the first limiting plate (301f) and the second limiting plate (302b) are disposed in the limiting groove (201a). One end of the placement groove (201) is also provided with a conical groove (201b), and a frustum (301b) is disposed in the conical groove (201b).

6. The automatic de-molding apparatus for a threaded product according to claim 5, characterized in that: A third base (400) is also provided on the other side of the second base (200). A groove (401) is provided in the third base (400). A slider (402) is fixed in the groove (401). A helical line (403) is provided in the slider (402). The helical line (403) cooperates with the helical groove (302a).

7. The automatic de-molding apparatus for a threaded product according to claim 6, characterized in that: It also includes a product component (500), which includes an end cap (501), a straight groove (502) on the outside of the end cap (501), a circular groove (503) in the end cap (501), an internal thread (504) on the inner wall of the circular groove (503), the end cap (501) being disposed in the injection molding groove (101), and an end post (301c) being placed in the circular groove (503).

8. The automatic de-molding apparatus for a threaded product according to claim 7, characterized in that: A cylinder (505) is provided in the circular groove (503), and a needle body (506) is provided in the cylinder (505). The needle body (506) is placed in the needle groove (301e), and the cylinder (505) is embedded in the column groove (301d).

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