Ejection mechanism of medical injection mold

Abstract

The utility model relates to the technical field of medical injection molds, in particular to a medical injection mold ejection mechanism which comprises an operation table, an upper mold for processing medical products is in bolted connection with the inner side of the operation table, an outer frame is in bolted connection with the exterior of the operation table, and an air cylinder for providing power is in bolted connection with the interior of the outer frame. A driving frame is fixed to the power output end of the air cylinder through a screw, an upper mold connected with the lower mold is fixed to the inner side of the driving frame through a screw, a material injection opening allowing materials to enter the upper mold and the lower mold is formed in the surface of the upper mold, and an ejection assembly for ejecting out medical products formed in the lower mold is arranged in the operation table. Through the arrangement of the transmission lead screw, the fixing block, the bearing sleeve, the connecting sleeve, the transmission bevel wheel A, the transmission bevel wheel B, the driving rod, the ejection rod and the transmission frame, the problem that when an existing medical injection mold ejection mechanism is used, a spring is compressed for a long time, and a formed medical product cannot be smoothly taken out is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical injection mold technical field, concretely relates to a medical injection mold ejection mechanism. BACKGROUND

[0002] Medical injection mold is the key tool of medical product manufacturing, has high precision, high quality and high efficiency characteristics, it is composed of the female die and male die, can adapt to different shape and size plastic product production, medical injection mold has efficient production, quality assurance and flexible change advantage, is towards higher precision, higher efficiency, more intelligent direction development.

[0003] The patent number 202123330798.0 discloses a kind of medical injection mold ejection mechanism, the device simple structure, and reasonable utilization of existing power realizes the ejection action, while ensuring the ejection work, reduce the energy loss.

[0004] But the existing medical injection mold ejection mechanism uses, utilizes the elastic force of spring to push the push plate, so that ejector pin ejects the product in mold, however, spring is in compression state for a long time in use process, spring fatigue damage occurs, leading to the change of spring metal structure, spring elasticity and fatigue strength will reduce, spring cannot drive ejector pin to eject the formed medical product in mold, the processing efficiency of medical product is affected to a certain extent, thus set up a kind of medical injection mold ejection mechanism. UTILITY MODEL CONTENTS

[0005] The utility model is mainly aimed at providing a kind of medical injection mold ejection mechanism, the utility model is set up transmission screw rod, fixed block, bearing sleeve, connecting sleeve, transmission oblique wheel A, transmission oblique wheel B, drive rod, ejector rod and transmission frame, solve the problem that the existing medical injection mold ejection mechanism cannot smoothly take out the formed medical product when using, spring is compressed for a long time.

[0006] The utility model discloses a medical injection mould ejection mechanism that solves the technical problems, adopts the technical scheme, which is a kind of medical injection mould ejection mechanism, including operation platform, the upper mould of medical product processing is bolted to operation platform inside, the outer frame is bolted to operation platform outside, and the cylinder of power supply is bolted to the inside of outer frame, the power output end screw of cylinder is fixed with drive frame, and the upper mould connected with lower mould is screw-fixed in the inside of drive frame, injection port that makes material enter the inside of upper mould and lower mould is provided on the surface of upper mould, the ejection assembly that the medical product formed in lower mould is ejected is provided in the inside of operation platform, the ejection assembly includes drive rod, transmission bevel gear A, transmission bevel gear B, transmission screw rod, ejector rod, fixed block, bearing sleeve, connecting sleeve, transmission frame, strut and sliding sleeve, the transmission handle is inserted to the outside of operation platform, and the drive rod is screw-fixed in the inside of transmission handle, transmission bevel gear B is sleeved on the outside of drive rod, and transmission bevel gear A is engagedly connected to the outside of transmission bevel gear B, transmission screw rod is clamped in the inside of transmission bevel gear A, and connecting sleeve is threadedly connected to the outside of transmission screw rod, the transmission frame that moves longitudinally is welded to the outside of connecting sleeve, the ejector rod that the medical product formed in lower mould is ejected is welded on the side of transmission frame, the fixed block is symmetrically welded to the inside bottom of operation platform, and the bearing sleeve that makes drive rod rotate stably is clamped in the inside of fixed block.

[0007] When the medical product is processed, the cylinder in the outer frame drives the upper mould on the drive frame to move, then the upper mould is connected with the lower mould, and then the material enters the inside of the upper mould and the lower mould through the injection port on the upper mould, so that the medical product is formed in the upper mould and the lower mould, then the cylinder drives the upper mould on the drive frame to move, and then the upper mould is separated from the lower mould.

[0008] When the medical product formed in the lower mould is taken out, the transmission handle outside the operation platform is rotated, then the transmission bevel gear B outside the drive rod is rotated, then the transmission screw rod on the transmission bevel gear B is rotated, then the connecting sleeve outside the transmission screw rod is driven by the external limiting structure to move longitudinally, at the same time, the transmission bevel gear A outside the drive rod, the transmission screw rod and the connecting sleeve outside the transmission screw rod are provided with two groups, so that the transmission frame inside the connecting sleeve moves longitudinally stably, then the two groups of ejector rods on the transmission frame enter the inside of the lower mould, and then the ejector rod ejects the medical product formed in the lower mould, so that the medical product formed in the lower mould is taken out conveniently.

[0009] Specifically, the connecting block is symmetrically welded to the outside of the upper mould, and the vertical rod is slidably connected to the inside of the connecting block.

[0010] By adopting the above technical scheme, when the cylinder drives the upper mould on the drive frame to move, the connecting block symmetrically welded to the outside of the upper mould slides outside the vertical rod in the outer frame, so that the stability of the movement of the upper mould is improved.

[0011] Specific, the fixed block outside welded with a support rod, and the support rod outside the sliding connection with the transmission frame connected with the sliding sleeve.

[0012] Through the above technical scheme, when the transmission frame drives the ejector rod to move, the sliding sleeve on the transmission frame slides outside the support rod of the fixed block, thereby improving the stability of the longitudinal movement of the transmission frame.

[0013] Specific, the lower die outside screw fixed with a rubber pad to increase the sealing of the upper die and the lower die.

[0014] Through the above technical scheme, when the upper die and the lower die are connected, the rubber pad on the upper die and the lower die is connected, thereby improving the sealing between the upper die and the lower die.

[0015] Specific, the input end of the cylinder is electrically connected with the power supply end of the external power supply.

[0016] Through the above technical scheme, by connecting the external power supply, the electric equipment works normally.

[0017] The beneficial effects of the utility model are:

[0018] (1) the utility model discloses a medical injection mold ejection mechanism, when the medical product formed in the lower die is taken out, the transmission handle outside the operation table is rotated, then the transmission handle drives the transmission bevel gear B outside the drive rod to rotate, then the transmission bevel gear B drives the transmission screw rod on the transmission bevel gear A to rotate, then the connecting sleeve outside the transmission screw rod is driven by the external limiting structure to drive the transmission frame to move longitudinally, the transmission bevel gear A, the transmission screw rod and the connecting sleeve outside the transmission screw rod are all provided with two groups, so that the transmission frame in the connecting sleeve moves longitudinally stably, then the two groups of ejector rods on the transmission frame enter the inside of the lower die, then the ejector rod ejects the medical product formed in the lower die, thereby facilitating the medical product formed in the lower die to be taken out.

[0019] (2) the utility model discloses a medical injection mold ejection mechanism, when the medical product formed in the lower die is taken out, the transmission handle outside the operation table is rotated, then the transmission handle drives the transmission bevel gear B outside the drive rod to rotate, then the transmission bevel gear B drives the transmission bevel gear A to rotate, then the connecting sleeve outside the transmission screw rod is driven by the external limiting structure to drive the transmission frame to move, then the transmission frame drives the ejector rod to move out from the inside of the lower die, then the bottom of the transmission frame contacts the surface of the fixed block, thereby facilitating the ejector rod to be restored to the original position. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model is further illustrated below in connection with the drawings and examples.

[0021] Figure 1 It is whole structure schematic diagram of the utility model a medical injection mold ejection mechanism;

[0022] Figure 2 It is the operating table internal structure schematic view of a medical injection mold ejection mechanism of the utility model;

[0023] Figure 3 It is the lower die partial structure schematic view of a medical injection mold ejection mechanism of the utility model;

[0024] In the drawing: 1, injection port; 2, upper die; 3, lower die; 4, drive frame; 5, operating table; 6, cylinder; 7, transmission handle; 8, vertical rod; 9, connecting block; 10, ejection assembly; 11, transmission screw; 12, support rod; 13, connecting sleeve; 14, transmission bevel gear A; 15, transmission bevel gear B; 16, drive rod; 17, bearing sleeve; 18, fixed block; 19, sliding sleeve; 20, ejection rod; 21, transmission frame; 22, outer frame; 23, rubber pad. DETAILED DESCRIPTION

[0025] In order to make the technical means, creation features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0026] In order to take out the medical product shaped in the lower die 3, as shown in Figure 1 、 Figure 2 and Figure 3 , a medical injection mold ejection mechanism of the utility model comprises an operating table 5, the operating table 5 is internally bolted with an upper die 2 for processing medical products, the operating table 5 is externally bolted with an outer frame 22, and the outer frame 22 is internally bolted with a cylinder 6 for providing power, the power output end of the cylinder 6 is screw-fixed with a drive frame 4, and the inner side of the drive frame 4 is screw-fixed with the upper die 2 connected with the lower die 3, the surface of the upper die 2 is provided with an injection port 1 for allowing material to enter the inside of the upper die 2 and the lower die 3, the inside of the operating table 5 is provided with an ejection assembly 10 for ejecting the medical product shaped in the lower die 3, the ejection assembly 10 comprises a drive rod 16, a transmission bevel gear A 14, a transmission bevel gear B 15, a transmission screw 11, an ejection rod 20, a fixed block 18, a bearing sleeve 17, a connecting sleeve 13, a transmission frame 21, a support rod 12 and a sliding sleeve 19, the operating table 5 is inserted with a transmission handle 7 on the outside, and the inner side of the transmission handle 7 is screw-fixed with the drive rod 16, the outer side of the drive rod 16 is sleeved with the transmission bevel gear B 15, and the outer side of the transmission bevel gear B 15 is meshingly connected with the transmission bevel gear A 14, the inner side of the transmission bevel gear A 14 is clamped with the transmission screw 11, and the outer side of the transmission screw 11 is threadedly connected with the connecting sleeve 13, the outer side of the connecting sleeve 13 is welded with the transmission frame 21 moving longitudinally, one side of the transmission frame 21 is welded with the ejection rod 20 for ejecting the medical product shaped in the lower die 3, the bottom end of the inside of the operating table 5 is symmetrically welded with the fixed block 18, and the inner side of the fixed block 18 is clamped with the bearing sleeve 17 for stabilizing the rotation of the drive rod 16.

[0027] In use, when the medical product is to be processed, the external controller drives the cylinder 6 in the outer frame 22 to drive the upper die 2 on the driving frame 4 to move, then the upper die 2 is connected with the lower die 3, then the material enters the upper die 2 and the lower die 3 through the injection port 1 on the upper die 2, so that the medical product is formed in the upper die 2 and the lower die 3, then the cylinder 6 drives the upper die 2 on the driving frame 4 to move, then the upper die 2 is separated from the lower die 3;

[0028] When the medical product formed in the lower die 3 is to be taken out, the transmission handle 7 outside the operation table 5 is rotated, then the transmission handle 7 drives the transmission bevel gear B15 outside the driving rod 16 to rotate, then the transmission bevel gear B15 drives the transmission lead screw 11 on the transmission bevel gear A14 to rotate, then the connecting sleeve 13 outside the transmission lead screw 11 is driven by the external limiting structure to drive the transmission frame 21 to move longitudinally, at the same time, the transmission bevel gear A14, the transmission lead screw 11 and the connecting sleeve 13 outside the transmission lead screw 11 are provided with two groups, so that the transmission frame 21 in the connecting sleeve 13 moves longitudinally stably, then the two groups of ejection rods 20 on the transmission frame 21 enter the inside of the lower die 3, then the ejection rods 20 eject the medical product formed in the lower die 3, so that the medical product formed in the lower die 3 is conveniently taken out;

[0029] When the medical product formed in the lower die 3 is taken out, the transmission handle 7 outside the operation table 5 is rotated, the connecting part between the transmission handle 7 and the operation table 5 is provided with a bearing, so that the transmission handle 7 is rotated to be stable, then the transmission handle 7 drives the transmission bevel gear B15 outside the driving rod 16 to rotate, the transmission bevel gear B15 drives the transmission lead screw 11 on the transmission bevel gear A14 to rotate, the connecting sleeve 13 outside the transmission lead screw 11 is driven by the external limiting structure to drive the transmission frame 21 to move, then the transmission frame 21 drives the ejection rod 20 to move out of the lower die 3, then the bottom of the transmission frame 21 is in contact with the surface of the fixed block 18, so that the ejection rod 20 is conveniently restored to the original position.

[0030] In order to improve the stability of the movement of the upper die 2, as shown in Figure 1 , the utility model also includes, the outside symmetry of upper die 2 is welded with connecting block 9, and the inside sliding connection of connecting block 9 has vertical rod 8.

[0031] In use, when the cylinder 6 drives the upper die 2 on the driving frame 4 to move, the connecting block 9 symmetrically welded outside the upper die 2 slides outside the vertical rod 8 in the outer frame 22, which improves the stability of the movement of the upper die 2.

[0032] In order to improve the stability of the longitudinal movement of the transmission frame 21, as shown in Figure 2 , the utility model also includes, the outside welding of fixed block 18 has support 12, and the outside sliding connection of support 12 has the sliding sleeve 19 connected with the transmission frame 21.

[0033] In use, when the transmission frame 21 drives the ejection rod 20 to move, the sliding sleeve 19 on the transmission frame 21 slides outside the supporting rod 12 outside the fixed block 18, thereby improving the stability of the longitudinal movement of the transmission frame 21.

[0034] In order to improve the sealing between the upper die 2 and the lower die 3, as shown in the example, Figure 3 The utility model also includes that the rubber pad 23 that increases the sealing of upper die 2 and lower die 3 is fixed with the outside screw of lower die 3.

[0035] In use, when the upper die 2 is connected with the lower die 3, the rubber pad 23 on the upper die 2 is connected with the rubber pad 23 on the lower die 3, thereby improving the sealing between the upper die 2 and the lower die 3.

[0036] In order to use the electric equipment to work normally, as shown in the example, Figure 1 The utility model also includes that the input end of the air cylinder 6 is electrically connected with the power supply end of external power supply.

[0037] In use, by connecting the external power supply, the electric equipment works normally.

[0038] In use, when the medical product is processed, the external controller drives the air cylinder 6 in the outer frame 22 to drive the upper die 2 on the driving frame 4 to move, then the upper die 2 is connected with the lower die 3, then the material enters the inside of the upper die 2 and the lower die 3 through the material injection port 1 on the upper die 2, so that the medical product is formed in the upper die 2 and the lower die 3, then the air cylinder 6 drives the upper die 2 on the driving frame 4 to move, then the upper die 2 is separated from the lower die 3;

[0039] When the medical product formed in the lower die 3 is taken out, the transmission handle 7 outside the operation table 5 is rotated, then the transmission handle 7 drives the transmission bevel gear B15 outside the driving rod 16 to rotate, then the transmission bevel gear B15 drives the transmission lead screw 11 on the transmission bevel gear A14 to rotate, then the connecting sleeve 13 outside the transmission lead screw 11 is driven by the external limiting structure to drive the transmission frame 21 to move longitudinally, at the same time, the transmission bevel gear A14 outside the driving rod 16, the transmission lead screw 11 and the connecting sleeve 13 outside the transmission lead screw 11 are provided with two groups, so that the transmission frame 21 inside the connecting sleeve 13 moves longitudinally stably, then the two groups of ejection rods 20 on the transmission frame 21 enter the inside of the lower die 3, then the ejection rod 20 ejects the medical product formed in the lower die 3, thereby facilitating the taking out of the medical product formed in the lower die 3;

[0040] When the medical product shaped in the lower mold 3 is taken out, the transmission handle 7 outside the operation platform 5 is rotated, bearings are arranged at the connection position of the transmission handle 7 and the operation platform 5, so that the transmission handle 7 is rotated to be stable, then the transmission handle 7 drives the transmission bevel gear B15 outside the driving rod 16 to rotate, the transmission bevel gear B15 drives the transmission lead screw 11 on the transmission bevel gear A14 to rotate, the connecting sleeve 13 outside the transmission lead screw 11 is driven by the external limiting structure to drive the transmission frame 21 to move, then the transmission frame 21 drives the ejection rod 20 to move out of the lower mold 3, then the bottom of the transmission frame 21 is in contact with the surface of the fixed block 18, so that the ejection rod 20 is restored to the original position;

[0041] When the cylinder 6 drives the upper mold 2 on the driving frame 4 to move, the connecting blocks 9 symmetrically welded outside the upper mold 2 slide outside the vertical rods 8 in the outer frame 22, so that the stability of the movement of the upper mold 2 is improved;

[0042] When the transmission frame 21 drives the ejection rod 20 to move, the sliding sleeve 19 on the transmission frame 21 slides outside the supporting rod 12 outside the fixed block 18, so that the stability of the longitudinal movement of the transmission frame 21 is improved;

[0043] When the upper mold 2 is connected with the lower mold 3, the rubber pad 23 on the upper mold 2 is connected with the rubber pad 23 on the lower mold 3, so that the sealing property between the upper mold 2 and the lower mold 3 is improved.

[0044] The basic principle, main features and advantages of the utility model are shown and described. It should be understood by the person skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only used to illustrate the principle of the utility model, various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A medical injection mold ejection mechanism characterized by, The utility model provides a medical product processing device, including operation platform (5), the upper die (2) of medical product processing is bolted in operation platform (5) inside, the outer frame (22) is bolted outside operation platform (5), and the power cylinder (6) of providing power is bolted inside outer frame (22), the power output end of power cylinder (6) is fixed with drive frame (4), and the upper die (2) connected with lower die (3) is fixed with drive frame (4) inside, the upper die (2) surface is provided with the injection port (1) of making material enter the inside of upper die (2) and lower die (3), the ejection assembly (10) of the medical product of forming in lower die (3) is provided in operation platform (5) inside, the ejection assembly (10) includes drive rod (16), transmission bevel gear A (14), transmission bevel gear B (15), transmission screw rod (11), ejector rod (20), fixed block (18), bearing sleeve (17), connecting sleeve (13), transmission frame (21), support rod (12) and sliding sleeve (19), the transmission handle (7) is inserted outside operation platform (5), and drive rod (16) is fixed with transmission handle (7) inside screw, the transmission bevel gear B (15) of drive rod (16) outside sleeve is connected, and transmission bevel gear B (15) outside engagement has transmission bevel gear A (14), transmission bevel gear A (14) inside is connected with transmission screw rod (11), and transmission screw rod (11) is connected with connecting sleeve (13) outside screw thread, the transmission frame (21) of longitudinal movement is welded outside connecting sleeve (13), the ejector rod (20) of the medical product of forming in lower die (3) is welded on one side of transmission frame (21), the fixed block (18) of symmetrical welding is provided in operation platform (5) inside bottom, and the bearing sleeve (17) of drive rod (16) rotation stabilizing is clamped inside fixed block (18).

2. A medical injection mold ejection mechanism as defined in claim 1, wherein, The connecting block (9) of symmetrical welding is provided outside the upper die (2), and the vertical rod (8) of sliding connection is provided inside the connecting block (9).

3. A medical injection mold ejection mechanism as defined in claim 1, wherein, The support rod (12) of welding is provided outside the fixed block (18), and the sliding sleeve (19) of transmission frame (21) connection is slidingly connected outside the support rod (12).

4. A medical injection mold ejection mechanism as defined in claim 1, wherein, The rubber pad (23) of increasing the sealing property of the upper die (2) and the lower die (3) is fixed with screw outside the lower die (3).

5. A medical injection mold ejection mechanism as defined in claim 1, wherein, The input end of the power cylinder (6) is electrically connected with the power supply end of the external power supply.

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