Gear injection mold for medical equipment

Abstract

The utility model discloses a gear injection mold for medical equipment. The gear injection mold comprises a lower mold; the upper die is arranged above the lower die; the gear injection mold has the beneficial effects that the double-spiral cold guide pipes are arranged, so that cooling liquid is introduced into each double-spiral cold guide pipe through the liquid inlet box, and the double-spiral cold guide pipes are used for quickly cooling gears subjected to injection molding in each injection molding groove; cooling liquid enters a liquid outlet box through all the double-spiral cold guide pipes and is discharged through a cooling liquid outlet pipe, an ejector plate and ejector pins are arranged, so that when the ejector plate is ejected, the ejector plate ejects one end of each ejector pin on one side, the ejector pins eject out injection-molded gears in an injection molding groove and eject out the injection-molded gears after being cooled, and the injection molding efficiency is improved. And demolding work is completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely is gear injection mold for medical equipment. BACKGROUND

[0002] Gear for medical equipment is indispensable transmission component in medical equipment, they play an important role in ensuring equipment normal operation, improving operation precision and safety, gear for medical equipment is widely used in various medical equipment and instrument, such as surgical robot, autoclave, CT scanner, ultrasonic device, X-ray machine etc., gear injection mold for medical equipment is injected into plastic material to mold cavity by injection molding process, and the gear part is formed by the combination of mold core part, and then the finished part is taken out by taking-out device. This mold equipment has the characteristics of high precision, high quality and flexibility, and can produce various specifications and types of miniature gear parts, but the existing injection mold is not convenient for demolding and taking out the injection molded gear, the required cooling time is longer, and the material sticking occurs during demolding, and manual taking out with tools can cause deformation of the gear of medical equipment, affecting the gear precision. SUMMARY

[0003] The utility model discloses gear injection mold for medical equipment to solve the problem that the existing injection mold is not convenient for demolding and taking out the injection molded gear, the required cooling time is longer, and the material sticking occurs during demolding, and manual taking out with tools can cause deformation of the gear of medical equipment, affecting the gear precision.

[0004] To achieve the above object, the utility model provides the following technical scheme: gear injection mold for medical equipment, comprising:

[0005] Lower mould;

[0006] Upper mould, upper mould sets up at the top of lower mould;

[0007] Injection slot, injection slot is symmetrically set up at the top of lower mould;

[0008] Thimble, thimble equidistance sliding is set up in the inside of injection slot, and thimble is slidingly arranged with lower mould;

[0009] Double helix cold pipe, double helix cold pipe equidistance sets up in the inside of lower mould, and double helix cold pipe is matched with injection slot;

[0010] Liquid inlet tank, liquid inlet tank is fixedly connected in one side of lower mould, and one end of double helix cold pipe is fixedly connected with liquid inlet tank;

[0011] Liquid outlet tank, liquid outlet tank sets up in one side of lower mould, and the other end of double helix cold pipe is fixedly connected with liquid outlet tank.

[0012] As a preferred scheme of the utility model: still include support frame, support frame fixedly connected at the bottom of lower mould, the inside of support frame is provided with the ejection plate that slides, one end of the ejector pin is fixedly connected with the ejection plate.

[0013] As a preferred scheme of the utility model: the inside of ejection plate is provided with the limit slide rod that slides symmetrically, one end of limit slide rod is fixedly connected with lower mould, the other end of limit slide rod is fixedly connected with support frame.

[0014] As a preferred scheme of the utility model: the inside of ejection plate is provided with the guide column that slides symmetrically, one end of guide column is fixedly connected with lower mould, the other end of guide column is fixedly connected with support frame.

[0015] As a preferred scheme of the utility model: the bottom of support frame is provided with the ejection through-hole that cooperates with ejection plate, the outside of limit slide rod is provided with spring.

[0016] As a preferred scheme of the utility model: one side of liquid inlet tank is fixedly connected with cooling liquid inlet pipe, one side of liquid outlet tank is fixedly connected with cooling liquid outlet pipe.

[0017] Compared with the prior art, the utility model has the advantages that through being provided with double helix cold guide pipe, realizes that cooling liquid is passed to each double helix cold guide pipe through liquid inlet tank, and the gear that is injection molded in each injection slot is rapidly cooled through double helix cold guide pipe, cooling liquid enters liquid outlet tank through each double helix cold guide pipe, and is discharged through cooling liquid outlet pipe, through being provided with ejection plate and ejector pin, realizes that each ejector pin on the one side of ejection plate is pushed when ejection plate is pushed, and the gear that is injection molded in injection slot is pushed out through ejector pin, is pushed out after cooling, and completes demolding work. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is overall structure schematic diagram of the utility model;

[0019] Figure 2 It is bottom view of the utility model;

[0020] Figure 3 It is lower mould plan view of the utility model;

[0021] Figure 4 It is limit slide rod structure schematic diagram of the utility model;

[0022] Figure 5 It is lower mould internal structure schematic diagram of the utility model;

[0023] Figure 6 It is double helix cold guide pipe structure schematic diagram of the utility model.

[0024] In the figure: 1, lower mold; 2, support frame; 3, upper mold; 4, double helix cooling pipe; 5, injection slot; 6, liquid inlet tank; 7, cooling liquid inlet pipe; 8, liquid outlet tank; 9, cooling liquid outlet pipe; 10, ejection plate; 11, guide column; 12, ejector pin; 13, limit slide rod; 14, spring; 15, ejection through hole. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] Please refer to Figures 1 to 6 The utility model provides a kind of technical scheme: medical equipment gear injection mold, it include: lower mold 1;Upper mold 3 is set in the upper of lower mold 1;Injection slot 5 is symmetrically opened in the top of lower mold 1;Ejector pin 12 equidistance slidingly set in the inside of injection slot 5, and ejector pin 12 is slidably arranged with lower mold 1;Double helix cooling pipe 4 equidistance is fixedly connected in the inside of lower mold 1, and double helix cooling pipe 4 is matched with injection slot 5;Liquid inlet tank 6 is fixedly connected in one side of lower mold 1, and one end of double helix cooling pipe 4 is fixedly connected with liquid inlet tank 6;Liquid outlet tank 8 is fixedly connected in one side of lower mold 1, and the other end of double helix cooling pipe 4 is fixedly connected with liquid outlet tank 8.

[0027] It can be understood that lower mold 1 and upper mold 3 cooperate to complete the injection processing in injection slot 5, after injection, cooling liquid is introduced into liquid inlet tank 6 through cooling liquid inlet pipe 7, cooling liquid enters each double helix cooling pipe 4 through liquid inlet tank 6, and the material in each injection slot 5 is cooled through double helix cooling pipe 4, and the other end of double helix cooling pipe 4 enters liquid outlet tank 8, and the cooling liquid is discharged through the cooling liquid outlet pipe 9 on one side of liquid outlet tank 8, and after the gear in injection slot 5 is cooled through each double helix cooling pipe 4, when support frame 2 moves away from upper mold 3, the ejection mechanism outside enters the ejection through hole 15, and the ejection plate 10 is moved, the ejection plate 10 is limited to slide on the outside of guide column 11 and limit slide rod 13, and each ejector pin 12 on one side is moved by ejection plate 10, and the formed gear in each injection slot 5 is ejected by ejector pin 12, to complete demolding work.

[0028] Please refer to Figure 1 And Figure 6 It further includes support frame 2, which is fixedly connected to the bottom of lower mold 1, and the inside of support frame 2 is slidably provided with ejection plate 10, and one end of ejector pin 12 is fixedly connected to ejection plate 10.

[0029] It can be understood that the ejection plate 10 is limited to slide on the inner side of the support frame 2, and the ejection plate 10 drives each ejector pin 12 to move to perform the ejection process.

[0030] Please refer to Figure 1 and Figure 6 , the inside of the ejection plate 10 is symmetrically slidably provided with a limiting slide rod 13, one end of the limiting slide rod 13 is fixedly connected with the lower mold 1, and the other end of the limiting slide rod 13 is fixedly connected with the support frame 2.

[0031] It can be understood that the ejection plate 10 is limited to slide on the outer side of the limiting slide rod 13, and the limiting slide rod 13 limits the adjusting position of the ejection plate 10, thereby improving the stability.

[0032] Please refer to Figure 1 and Figure 6 , the inside of the ejection plate 10 is symmetrically slidably provided with a guide column 11, one end of the guide column 11 is fixedly connected with the lower mold 1, and the other end of the guide column 11 is fixedly connected with the support frame 2.

[0033] It can be understood that the guide column 11 limits the adjusting position of the ejection plate 10, thereby stabilizing the moving position of the ejection plate 10 and the ejector pin 12.

[0034] Please refer to Figure 1 and Figure 6 , the bottom of the support frame 2 is provided with an ejection through hole 15 matched with the ejection plate 10, and the outer side of the limiting slide rod 13 is provided with a spring 14.

[0035] It can be understood that the ejection through hole 15 facilitates the external ejection plate 10 on the inner side of the support frame 2 to be driven and adjusted, and the limiting slide rod 13 resets the position of the ejection plate 10 moving on the inner side of the support frame 2.

[0036] Please refer to Figure 1 and Figure 6 , one side of the liquid inlet tank 6 is fixedly connected with a cooling liquid inlet pipe 7, and one side of the liquid outlet tank 8 is fixedly connected with a cooling liquid outlet pipe 9.

[0037] It can be understood that the cooling liquid inlet pipe 7 on one side of the liquid inlet tank 6 injects cooling liquid into the liquid inlet tank 6, and then enters each double-helical cooling pipe 4 through the liquid inlet tank 6, and then flows through the double-helical cooling pipe 4 and enters the liquid outlet tank 8, and then is discharged through the cooling liquid outlet pipe 9 on one side of the liquid outlet tank 8.

[0038] In the description of the utility model, need understanding is, the term "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and so on indicate the orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply the device or element indicated must have a particular orientation, with a particular orientation structure and operation, therefore cannot be understood as a restriction on the utility model.

[0039] In addition, the terms "first", "second", "third", "fourth" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features, therefore, the features limited by "first", "second", "third", "fourth" can be explicitly or implicitly include at least one of the features.

[0040] In the utility model, unless otherwise expressly provided and limited, the terms "installation", "arrangement", "connection", "fixing", "screw connection" and so on should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrated, can be mechanically connected, can also be electrically connected, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication or interaction relationship between two elements, unless otherwise expressly limited, for ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0041] Although the embodiments of the utility model have been shown and described, for ordinary skilled in the art, it can be understood that the embodiments can be changed, modified, replaced and changed in various ways without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and its equivalents.

Claims

1. A gear injection mold for medical equipment, characterized by, Include: Lower mold (1); Upper mold (3), upper mold (3) is arranged above lower mold (1); Injection slot (5), injection slot (5) is symmetrically arranged on the top of lower mold (1); Ejector pin (12), ejector pin (12) is equidistantly arranged in the injection slot (5), and the ejector pin (12) is arranged in the lower mold (1); Double helix cooling pipe (4), double helix cooling pipe (4) is equidistantly arranged in the lower mold (1), and the double helix cooling pipe (4) is matched with the injection slot (5); Liquid inlet tank (6), liquid inlet tank (6) is fixedly connected to one side of lower mold (1), one end of double helix cooling pipe (4) is fixedly connected to liquid inlet tank (6); Liquid outlet tank (8), liquid outlet tank (8) is arranged on one side of lower mold (1), and the other end of double helix cooling pipe (4) is fixedly connected to liquid outlet tank (8).

2. The gear injection mold for medical devices of claim 1, wherein: It also includes support frame (2), support frame (2) is fixedly connected to the bottom of lower mold (1), the inner side of support frame (2) is slidably provided with ejector plate (10), one end of ejector pin (12) is fixedly connected to ejector plate (10).

3. The gear injection mold for medical devices of claim 2, wherein: The inside of the ejector plate (10) is symmetrically provided with a limiting slide rod (13), one end of the limiting slide rod (13) is fixedly connected to the lower mold (1), and the other end of the limiting slide rod (13) is fixedly connected to the support frame (2).

4. The gear injection mold for medical devices of claim 2, wherein: The inside of the ejector plate (10) is symmetrically provided with a guide column (11), one end of the guide column (11) is fixedly connected to the lower mold (1), and the other end of the guide column (11) is fixedly connected to the support frame (2).

5. The gear injection mold for medical devices of claim 3, wherein: The bottom of the support frame (2) is provided with an ejecting through hole (15) matched with the ejector plate (10), and the outer side of the limiting slide rod (13) is provided with a spring (14).

6. The medical device gear injection mold of claim 1, wherein: One side of the liquid inlet tank (6) is fixedly connected with a cooling liquid inlet pipe (7), and one side of the liquid outlet tank (8) is fixedly connected with a cooling liquid outlet pipe (9).

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