Medical instrument shell mold convenient to demold

Abstract

The utility model discloses a medical instrument shell mould convenient to demould, which relates to the technical field of medical instrument processing and comprises a U-shaped base, a servo motor is mounted on the left side of the U-shaped base, a reciprocating screw rod is mounted on the right side of the servo motor through an output shaft, and a supporting plate is mounted on the right side of a sliding block assembly. A supporting frame is installed above the supporting plate, and abutting plates are installed on the sides, close to the lower die assembly, of the movable strips. An ejection block is arranged in the lower die assembly in a sliding mode, and a hydraulic cylinder assembly is installed above the supporting frame. According to the medical instrument shell mold convenient to demold, a servo motor drives a reciprocating lead screw to rotate, and a sliding block assembly matched with the reciprocating lead screw can move left and right on the reciprocating lead screw, so that a supporting plate and a lower mold assembly and an upper mold assembly above the supporting plate are driven to reciprocate left and right; and injection molding raw materials in the lower mold assembly and the upper mold assembly are more uniformly distributed in the lower mold assembly and the upper mold assembly, so that the injection molding quality of the injection-molded medical instrument shell is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment processing technical field, concretely is a medical equipment shell mould convenient to demould. BACKGROUND

[0002] In the high -speed development of medical industry, the safety and reliability of medical equipment are concerned, and the production quality of medical equipment shell as the important carrier of protecting internal precision components, guaranteeing equipment normal operation is crucial. Mould forming is the commonly used process of medical equipment shell manufacturing, and the raw materials can be molded into the required complex shape and accurate size through the mould. However, in the actual production process, the demolding link of the mould has a direct influence on production efficiency, product quality and production cost, and becomes one of the key factors restricting the efficient production of medical equipment shell.

[0003] For example, the Chinese utility model patent with application number 202221976490.5 discloses a kind of injection mould for medical equipment fast demoulding, by setting the through hole and first sliding slot and second sliding slot on lower mould base are convenient for the movement and positioning of lower mould, in turn, it is convenient to realize clamping with upper mould, also convenient to take out the product in lower mould.But its device still has certain defects;

[0004] When the medical equipment shell is injection molded, the injection material may not be uniformly filled in the mould, resulting in poor quality of the medical equipment shell forming, and at the same time, the injection material is adhered to the inner wall of the mould during demolding, resulting in large demolding difficulty.

[0005] Therefore, we propose a medical equipment shell mould convenient to demould to solve the problems raised in the above. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a medical equipment shell mould convenient to demould to solve the problems raised in the above background art that when the medical equipment shell is injection molded on the market, the injection material may not be uniformly filled in the mould, resulting in poor quality of the medical equipment shell forming, and at the same time, the injection material is adhered to the inner wall of the mould during demolding, resulting in large demolding difficulty.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a medical instrument shell mold convenient to demould, including U type base, the left side of U type base is installed with servo motor, the right side of servo motor is installed with reciprocating screw through output shaft, and the slider assembly is installed on reciprocating screw, the right side of slider assembly is installed with support plate, and the upper portion of support plate is installed with lower mould assembly, the upper portion of support plate is installed with support frame, and the left and right sides of support frame are all provided with movable strip, the side close to lower mould assembly of movable strip is all installed with abutment plate, and the abutment plate is connected between support frame through telescopic spring,

[0008] The inside of the lower mold assembly is slidably provided with an ejection block, the upper portion of the support frame is provided with a hydraulic cylinder assembly, and the lower portion of the hydraulic cylinder assembly is provided with an upper mold assembly through a driving assembly.

[0009] Preferably, the lower portion of the support plate is provided with a vertical plate on the front and rear sides, and the bottom surface of the U-shaped base is provided with a guide sliding groove on the front and rear sides. The vertical plate is slidably connected with the guide sliding groove. The left side of the support plate is provided with a hole slot, and the diameter of the hole slot is greater than the diameter of the reciprocating screw.

[0010] With the above structure design, during the injection molding process, the lower mold assembly and the upper mold assembly can be driven to move left and right reciprocally, so that the injection material is distributed more uniformly in the mold, thereby improving the forming quality of the injection molded medical instrument shell, while ensuring the stability and reliability of the mold movement process. The hole slot facilitates the movement of the support plate and the slider assembly, and the support plate does not hinder the reciprocating screw.

[0011] Preferably, the upper surface of the lower mold assembly is provided with a positioning hole on the left and right sides, and the lower surface of the upper mold assembly is provided with a positioning column on the left and right sides. The center line of the positioning column coincides with the center line of the positioning hole.

[0012] With the above structure design, during the mold closing stage, the upper mold assembly and the lower mold assembly can be accurately closed, ensuring the size accuracy and shape accuracy of the mold cavity, which is beneficial to produce high-precision medical instrument shells and meet the strict requirements of medical instruments on product precision.

[0013] Preferably, the movable strip penetrates through the left and right sides of the support frame, and the movable strip is slidably connected with the support frame.

[0014] With the above structure design, the movable strip is more stable when moving under stress, providing a stable structural foundation for subsequent auxiliary demolding using the movable strip, the abutment plate, and the telescopic spring, ensuring that the lower mold assembly can be accurately acted upon during the demolding operation.

[0015] Preferably, the opposite ends of the movable strip are provided with a pull block assembly, and the pull block assembly is located outside the support frame. When the movable strip is not under stress, the telescopic spring is in a contracted state.

[0016] With the above structure design, after injection molding, the movable strip and the abutting plate are impacted under the elastic force of the extension spring to vibrate the lower die assembly, so that the internal raw material is separated from the inner wall, the demolding difficulty is effectively reduced, the demolding efficiency is improved, and product damage caused by raw material adhesion is reduced.

[0017] Preferably, horizontal plates are installed between the vertical plates, the upper surfaces of the horizontal plates are connected with the ejector block through electric telescopic rods, two electric telescopic rods are arranged, the electric telescopic rods are controlled by the same controller, and the ejector block is sealingly connected with the lower die assembly.

[0018] With the above structure design, the molded medical device shell can be stably ejected from the lower die assembly during demolding, injection material leakage is prevented, the demolding difficulty is further reduced by cooperating with the movable strip and the abutting plate, and the demolding process is ensured to be smoothly performed.

[0019] Preferably, the upper die assembly is located directly above the lower die assembly, and an injection port is formed in the upper die assembly.

[0020] With the above structure design, the injection port is convenient for injecting the raw material of the medical device shell into the interior of the upper die assembly and the lower die assembly, injection operation is facilitated, the injection process is ensured to be smoothly performed, and the structure design is important for the mold to realize injection molding.

[0021] Compared with the prior art, the medical device shell mold convenient for demolding has the beneficial effects that:

[0022] 1. Improved molding quality: the servo motor is started, the servo motor drives the reciprocating screw rod to rotate, the slider assembly cooperating with the reciprocating screw rod moves left and right on the reciprocating screw rod, thereby driving the support plate, the lower die assembly above the support plate, and the upper die assembly above the lower die assembly to move left and right reciprocally, so that the injection material in the lower die assembly and the upper die assembly is more evenly distributed therein, thereby improving the injection quality of the injection molded medical device shell.

[0023] 2. Facilitating demolding: the electric telescopic rod cooperates with the ejector block to stably eject the molded shell from the lower die assembly, and pulling the pull block assembly can make the movable strip and the abutting plate assist in loosening the part that may be adhered to the inner wall of the mold, thereby significantly reducing the demolding difficulty, improving the demolding efficiency, reducing the risk of product damage caused by difficult demolding, and further saving production cost. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a whole front view structural schematic diagram of the utility model;

[0025] Figure 2 It is a structure schematic diagram when the utility model is molded;

[0026] Figure 3 For the utility model Figure 2 The enlarged structure schematic view of A place in the middle;

[0027] Figure 4 For the utility model electric telescopic rod and ejector block position structure schematic view;

[0028] Figure 5 For the utility model ejector block when ejecting structure schematic view.

[0029] In the drawing: 1, U-shaped base;2, servo motor;3, reciprocating screw;4, slider assembly;5, support plate;6, vertical plate;7, guide chute;8, lower die assembly;9, positioning hole;10, support frame;11, movable strip;12, abutment plate;13, pull block assembly;14, telescopic spring;15, horizontal plate;16, electric telescopic rod;17, ejector block;18, hydraulic cylinder assembly;19, upper die assembly;20, injection port;21, positioning column. Specific implementation

[0030] The technical scheme 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 scope of protection of the utility model.

[0031] Please refer to Figures 1-5The utility model provides a kind of technical scheme: a medical instrument shell mould convenient to demould, including U-shaped baseplate 1, servo motor 2, reciprocating screw rod 3, slider assembly 4, support plate 5, vertical plate 6, guide chute 7, lower die assembly 8, positioning hole 9, support frame 10, movable strip 11, abutment plate 12, pull block assembly 13, extension spring 14, horizontal plate 15, electric telescopic rod 16, ejector block 17, hydraulic cylinder assembly 18, upper die assembly 19, injection port 20 and positioning column 21, servo motor 2 is installed on the left side of U-shaped baseplate 1, reciprocating screw rod 3 is installed on the right side of servo motor 2 by output shaft, and reciprocating screw rod 3 is installed slider assembly 4, the right side of slider assembly 4 is installed support plate 5, and the lower side of support plate 5 is installed vertical plate 6, U-shaped baseplate 1 is equipped with guide chute 7 on the bottom surface front and rear sides, vertical plate 6 is connected with guide chute 7 slidingly, the left side of support plate 5 is equipped with hole slot, and the diameter of hole slot is greater than the diameter of reciprocating screw rod 3, when injecting medical instrument shell, servo motor 2 is started, servo motor 2 drives reciprocating screw rod 3 to rotate, and the slider assembly 4 matched with reciprocating screw rod 3 moves left and right on reciprocating screw rod 3, to drive support plate 5 and the lower die assembly 8 and upper die assembly 19 above it reciprocatingly move left and right, so that the injection material in lower die assembly 8 and upper die assembly 19 is more evenly distributed in it, to improve the injection quality of injection medical instrument shell, and the upper side of support plate 5 is installed lower die assembly 8, the upper surface of lower die assembly 8 is equipped with positioning hole 9 on left and right sides, and the lower surface of upper die assembly 19 is installed positioning column 21 on left and right sides, the center line of positioning column 21 and the center line of positioning hole 9 coincide with each other, in the stage of clamping, hydraulic cylinder assembly 18 is started, and hydraulic cylinder assembly 18 drives upper die assembly 19 to move downwards by driving assembly, and positioning column 21 on the lower surface of upper die assembly 19 is inserted into positioning hole 9 on the upper surface of lower die assembly 8, to ensure that upper die assembly 19 and lower die assembly 8 are accurately clamped, at this time, injection port 20 above upper die assembly 19 is ready for injection, the upper side of support plate 5 is installed support frame 10, and movable strip 11 is arranged on the left and right sides of support frame 10, abutment plate 12 is installed on the side close to lower die assembly 8 of movable strip 11, and abutment plate 12 is connected with support frame 10 by extension spring 14, movable strip 11 penetrates the left and right sides of support frame 10, and movable strip 11 is connected with support frame 10 slidingly, movable strip 11 can move left and right along support frame 10 when stressed, to make movable strip 11 more stable when moving left and right, and deviation does not occur, pull block assembly 13 is installed on the reverse end of movable strip 11, and pull block assembly 13 is located on the outside of support frame 10, extension spring 14 is in the state of contraction when movable strip 11 is not stressed, after injection is completed, when preparing demolding, reverse through pull block assembly 13 drive movable strip 11 to move to the position far from lower die assembly 8, movable strip 11 drives abutment plate 12 to move away from lower die assembly 8, to make extension spring 14 further contract, and then pull block assembly 13 is released,The pull block assembly 13, the movable strip 11 and the abutting plate 12 are reset under the action of the elastic force of the telescopic spring 14 and move to the lower die assembly 8, impact the lower die assembly 8, make it vibrate, facilitate the separation of the internal raw materials and the inner wall, simple structure, convenient operation.

[0032] The horizontal plate 15 is installed between the vertical plates 6, and the upper surface of the horizontal plate 15 is connected with the ejection block 17 through the electric telescopic rod 16, the electric telescopic rod 16 is provided with two, and the electric telescopic rod 16 is controlled by the same controller, the ejection block 17 is sealingly matched with the lower die assembly 8, when demolding, the upper die assembly 19 is driven by the hydraulic cylinder assembly 18 to move upwardly and reset, the electric telescopic rod 16 is started, the two electric telescopic rods 16 are synchronously elongated, the ejection block 17 is pushed to move upwardly in the lower die assembly 8, the ejection block 17 is sealingly matched with the lower die assembly 8, which can prevent the leakage of injection molding raw materials, and can stably eject the formed medical device shell from the lower die assembly 8, at the same time, the pull block assembly 13 can be pulled again, the movable strip 11 and the abutting plate 12 can assist in loosening the part possibly adhered to the inner wall of the mold, further reducing the demolding difficulty, completing the whole demolding process, the ejection block 17 is slidably arranged in the lower die assembly 8, the hydraulic cylinder assembly 18 is installed above the support frame 10, and the upper die assembly 19 is installed below the hydraulic cylinder assembly 18 through the driving assembly, the upper die assembly 19 is located directly above the lower die assembly 8, and the injection port 20 is formed in the upper die assembly 19, which is convenient for injecting the raw materials of the medical device shell into the inside of the upper die assembly 19 and the lower die assembly 8.

[0033] Working principle: when the medical device shell mold convenient for demolding is used, first, in the mold closing stage, the hydraulic cylinder assembly 18 is started, the hydraulic cylinder assembly 18 drives the upper die assembly 19 to move downwardly through the driving assembly, the positioning column 21 on the lower surface of the upper die assembly 19 is inserted into the positioning hole 9 on the upper surface of the lower die assembly 8, so as to ensure that the upper die assembly 19 and the lower die assembly 8 are accurately molded, at this time, the injection port 20 above the upper die assembly 19 is ready for injection molding; when the medical device shell is injection molded, the servo motor 2 is started, the servo motor 2 drives the reciprocating screw rod 3 to rotate, the sliding block assembly 4 matched with the reciprocating screw rod 3 moves left and right on the reciprocating screw rod 3, thereby driving the support plate 5, the lower die assembly 8 above the support plate 5 and the upper die assembly 19 to move left and right reciprocatingly, so that the injection molding raw materials in the lower die assembly 8 and the upper die assembly 19 are more evenly distributed, thereby improving the injection molding quality of the injection molded medical device shell.

[0034] After the injection molding is completed, when preparing for demolding, the movable strip 11 is driven by the pull block assembly 13 to move to a position away from the lower mold assembly 8 in the reverse direction, the movable strip 11 drives the abutment plate 12 to move away from the lower mold assembly 8, the telescopic spring 14 is further contracted, then the pull block assembly 13 is released, the pull block assembly 13, the movable strip 11 and the abutment plate 12 are moved to reset in the direction of the lower mold assembly 8 under the action of the elastic force of the telescopic spring 14, impact the lower mold assembly 8 to make it vibrate, so that the internal raw materials are separated from the inner wall, the structure is simple, and the operation is convenient; when demolding, the upper mold assembly 19 is driven by the hydraulic cylinder assembly 18 to move upward to reset, the electric telescopic rod 16 is started, the two electric telescopic rods 16 are synchronously elongated, the ejection block 17 is pushed to move upward in the lower mold assembly 8, the ejection block 17 is sealingly matched with the lower mold assembly 8, the injection molding raw materials can be prevented from leaking, and the molded medical device shell can be stably ejected from the lower mold assembly 8, at the same time, the pull block assembly 13 can be pulled again, the movable strip 11 and the abutment plate 12 can assist in loosening the part possibly adhered to the inner wall of the mold, the demolding difficulty is further reduced, the whole demolding process is completed, and a series of work is completed. The contents not described in detail in the specification belong to the prior art known to the person skilled in the art.

[0035] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A medical device shell mold facilitating demolding, comprising a U-shaped base (1), a servo motor (2) is installed on the left side of the U-shaped base (1), characterized in that: The right side of the servo motor (2) is provided with a reciprocating screw rod (3) through an output shaft, and the reciprocating screw rod (3) is provided with a sliding block assembly (4); the right side of the sliding block assembly (4) is provided with a supporting plate (5), and the upper side of the supporting plate (5) is provided with a lower die assembly (8); the upper side of the supporting plate (5) is provided with a supporting frame (10), and the left and right sides of the supporting frame (10) are provided with movable strips (11); the side of the movable strips (11) close to the lower die assembly (8) is provided with abutting plates (12), and the abutting plates (12) and the supporting frame (10) are connected through telescopic springs (14). The inside of the lower die assembly (8) is provided with an ejection block (17) which slides, the upper side of the supporting frame (10) is provided with a hydraulic cylinder assembly (18), and the lower side of the hydraulic cylinder assembly (18) is provided with an upper die assembly (19) through a driving assembly.

2. The medical device shell mold facilitating demolding of claim 1, wherein: The lower side of the supporting plate (5) is provided with vertical plates (6) on the front and rear sides, the bottom surface of the U-shaped base (1) is provided with guide sliding grooves (7) on the front and rear sides, the vertical plates (6) are connected with the guide sliding grooves (7) in a sliding manner, the left side of the supporting plate (5) is provided with a hole groove, and the diameter of the hole groove is greater than the diameter of the reciprocating screw rod (3).

3. The medical device shell mold facilitating demolding of claim 1, wherein: The upper surface of the lower die assembly (8) is provided with positioning holes (9) on the left and right sides, and the lower surface of the upper die assembly (19) is provided with positioning columns (21) on the left and right sides, the center lines of the positioning columns (21) and the positioning holes (9) coincide with each other.

4. The medical device shell mold facilitating demolding of claim 1, wherein: The movable strips (11) penetrate the left and right sides of the supporting frame (10) and are connected with the supporting frame (10) in a sliding manner.

5. The medical device shell mold facilitating demolding of claim 4, wherein: The reverse ends of the movable strips (11) are provided with pull block assemblies (13), and the pull block assemblies (13) are located outside the supporting frame (10); when the movable strips (11) are not stressed, the telescopic springs (14) are in a contracted state.

6. The medical device shell mold facilitating demolding of claim 2, wherein: The vertical plates (6) are provided with a horizontal plate (15), and the upper surface of the horizontal plate (15) is connected with the ejection block (17) through electric telescopic rods (16); the electric telescopic rods (16) are provided with two, and the electric telescopic rods (16) are controlled by the same controller; the ejection block (17) is sealingly connected with the lower die assembly (8).

7. The medical device shell mold facilitating demolding of claim 1, wherein: The upper die assembly (19) is located directly above the lower die assembly (8), and the upper side of the upper die assembly (19) is provided with an injection port (20).

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