Guide structure for medical injection mold

Abstract

The utility model relates to the technical field of guide structures for injection molds, and discloses a guide structure for a medical injection mold, which comprises a base used for being mounted at the top of a machine tool or a workbench, a lower mold mounted inside the base and used for performing injection molding processing on medical equipment, a rack mounted outside the base, and a hydraulic rod, the hydraulic rod is installed at the bottom in the rack and used for providing drive, the upper mold is installed at the bottom of the hydraulic rod and matched with the lower mold to conduct injection molding machining on the medical instrument, the guide arms are installed on the two sides of the bottom of the upper mold, and the guide grooves are formed in the two sides of the top of the base and used for being matched with the guide arms to guide the upper mold. According to the guiding structure for the medical injection mold, guiding damping and vibration direction changing are automatically conducted between the lower mold and the upper mold, the situation that vibration force affects mold closing between the lower mold and the upper mold is avoided, then the injection molding speed of the device is increased, and workers can take materials conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of guide structures for injection molds, in particular to a guide structure for medical injection molds. Background Art

[0002] An injection mold is a tool for producing plastic products, and is also a tool for giving plastic products a complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain parts with complex shapes. When medical devices are processed, injection molds are also needed to perform injection molding on the medical devices. Injection molds in the prior art, when in use, because the molds are all rigid structures, collisions will occur when the two molds are closed, which will cause a certain offset in the position of the molds, which will have a certain impact on the accuracy of the injection molded workpiece. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a guide structure for a medical injection mold to solve the technical problem that since the molds are all rigid structures, collision will occur when the two molds are closed, which will cause a certain offset in the position of the molds and have a certain impact on the accuracy of the injection molded workpiece.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a guide structure for a medical injection mold, comprising:

[0007] Base, used to be installed on the top of a machine tool or workbench.

[0008] The lower mold is installed inside the base and is used for injection molding of medical devices.

[0009] Rack, mounted on the outside of the base.

[0010] A hydraulic rod, mounted at the bottom of the frame, provides drive.

[0011] The upper mold is installed at the bottom of the hydraulic rod and is used in conjunction with the lower mold for injection molding of medical devices.

[0012] The guide arms are installed on both sides of the bottom of the upper mold and are used to guide the upper mold.

[0013] The guide grooves are provided on both sides of the top of the base and are used to cooperate with the guide arms to guide the upper mold.

[0014] The discharging mechanism is installed on both sides of the base and is used to guide and dampen the guide arm.

[0015] The discharging mechanism includes a slide plate, damping rods are connected to both sides of the top of the slide plate, the top of the damping rod is connected to the inside of the base, the outside of the slide plate is slidably connected to the inside of the base, the bottom of the slide plate is connected to an inclined rod by a hinge, the bottom of the inclined rod is connected to a toothed plate by a hinge, the front of the toothed plate is meshed with a gear, the top of the gear is fixedly connected to a threaded rod, the external thread of the threaded rod is connected to a threaded barrel, and the top of the threaded barrel is fixedly connected to a discharging plate.

[0016] Preferably, vertical grooves are evenly spaced inside the base, and the tops of the vertical grooves are connected to the tops of the damping rods. The vertical grooves can be used to install and connect the damping rods.

[0017] Preferably, a transverse groove is provided inside the base, the transverse groove is connected to the guide groove, the bottom inside the transverse groove is slidably connected to the bottom of the tooth plate, and the transverse groove facilitates the connection and transmission of the tooth plate.

[0018] Preferably, both sides of the base are provided with sliding grooves, and a slider is slidably connected inside the sliding groove. The top of the slider is connected to the bottom of the tooth plate, and the opposite ends of the two sliders are fixedly connected with springs, and the springs are connected to the inside of the sliding groove. The sliding groove cooperates with the slider to guide the tooth plate so that the tooth plate can move in a straight line, and the spring can pull the slider to return after the movement is completed.

[0019] Preferably, both sides of the bottom of the transverse groove are connected with seat bearings, the top of the seat bearings is connected to the bottom of the gear, and the seat bearings can support the gear.

[0020] Preferably, an annular groove is provided at the bottom of the lower mold, the interior of the annular groove is slidably connected to the exterior of the threaded barrel, and the annular groove facilitates the threaded barrel to transmit the discharge plate.

[0021] (III) Beneficial effects

[0022] Compared with the prior art, the utility model provides a guide structure for a medical injection mold, which has the following beneficial effects:

[0023] 1. The guide structure of the medical injection mold automatically guides the vibration reduction and changes the vibration direction between the lower mold and the upper mold when the lower mold and the upper mold are closed, through the added guide arm, guide groove and discharge mechanism, to avoid the vibration force affecting the closing between the lower mold and the upper mold;

[0024] 2. The guide structure of the medical injection mold automatically drives the workpiece to be discharged after the injection molding of the workpiece is completed through the added discharge mechanism, thereby increasing the injection molding speed of the device and facilitating the staff to take the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front schematic diagram of the utility model;

[0026] Figure 2 This is a front sectional view of the lower mold of the utility model;

[0027] Figure 3 It is a front schematic diagram of the discharging mechanism of the utility model.

[0028] In the figure: 1. base; 11. horizontal groove; 12. slide groove; 13. vertical groove; 2. lower mold; 21. annular groove; 3. frame; 4. hydraulic rod; 5. upper mold; 6. guide arm; 7. guide groove; 8. discharge mechanism; 81. slide plate; 811. damping rod; 82. inclined rod; 83. tooth plate; 831. slider; 832. spring; 84. gear; 841. seat bearing; 85. threaded rod; 86. threaded cylinder; 87. discharge plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] The utility model provides a technical solution, a guide structure for a medical injection mold, comprising:

[0031] See also Figure 1 and Figure 2 The base 1 is used to be installed on the top of a machine tool or a workbench. Vertical grooves 13 are evenly spaced inside the base 1. The top of the vertical groove 13 is connected to the top of the damping rod 811. The vertical groove 13 can be used to install and connect the damping rod 811.

[0032] The lower mold 2 is installed inside the base 1 and is used for injection molding of medical equipment. An annular groove 21 is provided at the bottom of the lower mold 2. The inside of the annular groove 21 is slidably connected to the outside of the threaded cylinder 86. The annular groove 21 facilitates the threaded cylinder 86 to transmit the discharge plate 87.

[0033] The frame 3 is installed outside the base 1 .

[0034] The hydraulic rod 4 is installed at the bottom of the frame 3 to provide drive.

[0035] The upper mold 5 is installed at the bottom of the hydraulic rod 4 and cooperates with the lower mold 2 to perform injection molding on the medical device.

[0036] The guide arms 6 are installed on both sides of the bottom of the upper mold 5 and are used to guide the upper mold 5 .

[0037] The guide grooves 7 are provided on both sides of the top of the base 1 and are used to cooperate with the guide arms 6 to guide the upper mold 5 .

[0038] See also Figure 3 The discharging mechanism 8 is installed on both sides of the base 1 and is used to guide and damp the guide arm 6.

[0039] The discharging mechanism 8 includes a slide plate 81, which cooperates with the inclined rod 82, the tooth plate 83 and the damping rod 811 to guide the vertical vibration force into left and right vibration. The damping rod 811 is connected to both sides of the top of the slide plate 81, and the top of the damping rod 811 is connected to the inside of the base 1.

[0040] The outside of the slide plate 81 is slidably connected to the inside of the base 1. The bottom of the slide plate 81 is connected to a slanted rod 82 by a hinge. The bottom of the slanted rod 82 is connected to a toothed plate 83 by a hinge. The toothed plate 83 can drive the gear 84 to rotate. The front end of the gear 84 away from the gear 84 is not provided with teeth, so that when the hydraulic rod 4 returns to its position, the discharge plate 87 will not immediately drive the workpiece to feed.

[0041] A transverse groove 11 is provided inside the base 1 , and the transverse groove 11 is connected to the guide groove 7 . The bottom of the transverse groove 11 is slidably connected to the bottom of the tooth plate 83 . The transverse groove 11 facilitates the connection and transmission of the tooth plate 83 . Slide grooves 12 are provided on both sides of the base 1 .

[0042] The inside of the slide groove 12 is slidably connected with a slider 831, the top of the slider 831 is connected to the bottom of the tooth plate 83, the opposite ends of the two sliders 831 are fixedly connected with springs 832, the spring 832 is connected to the inside of the slide groove 12, the slide groove 12 cooperates with the slider 831 to guide the tooth plate 83, so that the tooth plate 83 moves in a straight line, and the spring 832 can pull the slider 831 to return to its original position after the movement is completed.

[0043] The front side of the toothed plate 83 is meshedly connected with a gear 84, which can drive the threaded rod 85 to move. Both sides of the bottom of the transverse groove 11 are connected with seat bearings 841, and the top of the seat bearing 841 is connected to the bottom of the gear 84, and the seat bearing 841 can support the gear 84.

[0044] The top of the gear 84 is fixedly connected with a threaded rod 85, and the threaded rod 85 can drive the threaded barrel 86 to move. The external thread of the threaded rod 85 is connected with the threaded barrel 86. The inside of the threaded barrel 86 is provided with a threaded groove, and the inside of the threaded groove is connected with the external thread of the threaded rod 85. The threaded barrel 86 can drive the discharge plate 87 to rise. The top of the threaded barrel 86 is fixedly connected with the discharge plate 87, and the discharge plate 87 is slidably connected to the inside of the lower mold 2, and then the threaded barrel 86 can be limited to prevent the threaded barrel 86 from rotating during transmission, and the discharge plate 87 can drive the workpiece to return.

[0045] This scheme first starts the hydraulic rod 4 to drive the upper mold 5 to descend, so that the upper mold 5 is inserted into the lower mold 2 to complete the closing of the mold. At the same time, when the upper mold 5 is descending, the guide arm 6 is driven to insert into the guide groove 7 for guidance. At the same time, when the guide arm 6 is inserted into the guide groove 7, it will drive the slide plate 81 to descend. The slide plate 81 is damped by the damping rod 811. At the same time, the slide plate 81 changes the transmission direction of the vibration generated by the guide arm 6 inserted into the guide groove 7 through the cooperation of the inclined rod 82 and the tooth plate 83, so as to avoid the vibration force being directly transmitted to the bottom of the base 1, so as to act on the outside of the guide arm 6 again, so that the upper mold 5 has a certain vibration. Through the added guide arm 6, guide groove 7 and discharge mechanism 8, when the lower mold 2 and the upper mold 5 are closed, the lower mold 2 and the upper mold 5 are automatically guided and damped and the vibration direction is changed to avoid the vibration force affecting the closing between the lower mold 2 and the upper mold 5.

[0046] When the toothed plate 83 moves, it will drive the gear 84 to rotate, and the rotating gear 84 will drive the threaded rod 85 to rotate, and the rotating threaded rod 85 will drive the threaded barrel 86 to descend, and the descending threaded barrel 86 will drive the discharge plate 87 to descend, and the staff will inject the raw material into the interior of the lower mold 2 so that the lower mold 2 cooperates with the upper mold 5 to complete the injection molding process. After the injection molding of the workpiece is completed, the upper mold 5 is started to rise and return, and the slide plate 81 is released from being squeezed by the guide arm 6 and then returns. The returned slide plate 81 drives the threaded rod 85 to rotate, and the rotating threaded rod 85 drives the threaded barrel 86 and the discharge plate 87 to return, and the returned discharge plate 87 automatically raises and discharges the workpiece after injection molding. Through the added discharge mechanism 8, after the injection molding of the workpiece is completed, the workpiece is automatically driven to be discharged, thereby increasing the injection molding speed of the device and facilitating the staff to take the material.

[0047] 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 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 device.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A guide structure for a medical injection mold, characterized in that: include: A base (1) is used for mounting on a machine tool or a workbench top; A lower mold (2) is installed inside the base (1) and is used for injection molding of medical devices; A frame (3) is mounted outside the base (1); A hydraulic rod (4) is installed at the bottom of the frame (3) to provide drive; An upper mold (5) is installed at the bottom of the hydraulic rod (4) and cooperates with the lower mold (2) to perform injection molding on the medical device; Guide arms (6), mounted on both sides of the bottom of the upper mold (5), for guiding the upper mold (5); Guide grooves (7) are provided on both sides of the top of the base (1) and are used to cooperate with the guide arms (6) to guide the upper mold (5); A discharging mechanism (8) is installed on both sides of the base (1) and is used to guide and dampen the guide arm (6); The discharging mechanism (8) comprises a slide plate (81), both sides of the top of the slide plate (81) are connected to damping rods (811), the top of the damping rods (811) is connected to the inside of the base (1), the outside of the slide plate (81) is slidably connected to the inside of the base (1), the bottom of the slide plate (81) is connected to an inclined rod (82) via a hinge, the bottom of the inclined rod (82) is connected to a toothed plate (83) via a hinge, the front face of the toothed plate (83) is meshingly connected to a gear (84), the top of the gear (84) is fixedly connected to a threaded rod (85), the outer surface of the threaded rod (85) is threadedly connected to a threaded barrel (86), and the top of the threaded barrel (86) is fixedly connected to a discharging plate (87).

2. A guide structure for a medical injection mold according to claim 1, characterized in that: The base (1) is provided with vertical grooves (13) at equal intervals inside, and the top of the vertical groove (13) is connected to the top of the damping rod (811).

3. A guide structure for a medical injection mold according to claim 1, characterized in that: A transverse groove (11) is provided inside the base (1), the transverse groove (11) is connected to the guide groove (7), and the bottom inside the transverse groove (11) is slidably connected to the bottom of the tooth plate (83).

4. A guide structure for a medical injection mold according to claim 1, characterized in that: Slide grooves (12) are provided on both sides of the interior of the base (1), and a slider (831) is slidably connected to the interior of the slide groove (12), and the top of the slider (831) is connected to the bottom of the tooth plate (83), and the opposite ends of the two sliders (831) are fixedly connected to springs (832), and the springs (832) are connected to the interior of the slide groove (12).

5. A guide structure for a medical injection mold according to claim 3, characterized in that: Both sides of the bottom of the transverse groove (11) are connected to seated bearings (841), and the top of the seated bearing (841) is connected to the bottom of the gear (84).

6. A guide structure for a medical injection mold according to claim 1, characterized in that: The bottom of the lower mold (2) is provided with an annular groove (21), and the interior of the annular groove (21) is slidably connected to the exterior of the threaded cylinder (86).

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