Puncture needle forming die

Abstract

The utility model discloses a puncture needle forming die, which belongs to the technical field of medical injection and comprises a frame, a lower die device, an upper die device, a synchronous blowing device and a puncture needle, the lower die device is mounted on the left side of the frame, the upper die device is mounted on the right side of the frame, the synchronous blowing device is mounted on the upper side of the lower die device, and the puncture needle is mounted on the lower die device. The lower die device comprises a fixing plate, a sliding frame, a first supporting plate, a lower die, a positioning rod and a first air cylinder, the fixing plate is fixedly installed on the left side of the rack, the sliding frame is slidably connected to the fixing plate, the first supporting plate is fixedly installed on the right side of the sliding frame, and the lower die is fixedly installed on the middle side of the first supporting plate; the multiple positioning rods are fixedly installed on the right side wall of the first supporting plate, and the first air cylinder is fixedly installed on the left side wall of the fixing plate. By means of the mode, linkage synchronous discharging can be achieved in the mold withdrawing process, and the mold can be cooled and cleaned at the same time.

Description

Technical Field

[0001] This utility model relates to the field of medical injection technology, specifically a puncture needle forming mold. Background Technology

[0002] A puncture needle, also called a bottle stopper puncture needle, is a needle used to puncture bottle stoppers or caps to obtain or inject substances into a bottle. It is commonly used in medical, laboratory, and pharmaceutical fields. In the medical field, puncture needles are used to puncture the rubber stoppers of infusion bottles, introducing the liquid medication into the infusion tubing and then delivering it to the patient. It generally consists of a needle tip, a baffle, and a needle handle to prevent contamination of the medication. It is usually a disposable item made of plastic. Traditionally, puncture needles are inserted into the medicine bottle and use three grooved channels to deliver the liquid, with a circular through-hole for ventilation. If the insertion speed is too slow, the medication will flow out of the bottle from one side of the three grooved channels, easily causing waste of medication and contaminating the bottle opening and the user.

[0003] Chinese patent CN213891097U discloses a puncture needle injection mold, including an injection stage. Two grooves are formed on the upper surface of the injection stage, arranged one in front of the other. A slider is slidably connected inside each groove. A lower mold is fixedly connected to the upper end of each slider. A molding cavity is formed on the upper surface of the lower mold. A first support plate and a second support plate are fixedly connected to the rear surface of the injection stage. The front surfaces of the first and second support plates... Each surface of the injection molding table is provided with an auxiliary groove. A hydraulic telescopic rod is fixedly connected to the upper surface of each auxiliary groove. An auxiliary block is fixedly connected to the lower end of each hydraulic telescopic rod. The auxiliary blocks are slidably connected inside the auxiliary groove. An upper mold is fixedly connected to the front surface of the auxiliary block on the first support plate. A forming device is provided on the upper mold. A demolding device is provided on the auxiliary block on the second support plate. A finished product inlet is provided on the upper surface of the injection molding table. The finished product inlet is located between two slides and does not contact the two slides.

[0004] However, the technical solution of this patent has the following problems:

[0005] This patent cannot simultaneously discharge materials while demolding, nor can it simultaneously cool and clean the mold while discharging materials.

[0006] Therefore, those skilled in the art have provided a puncture needle forming mold to solve the above problems. Utility Model Content

[0007] The purpose of this invention is to provide a puncture needle forming mold to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A puncture needle forming mold includes a frame, and further includes: a lower mold device, an upper mold device, a synchronous blowing device, and a puncture needle. The lower mold device is installed on the left side of the frame, the upper mold device is installed on the right side of the frame, and the synchronous blowing device is installed on the upper side of the lower mold device. The lower mold device includes: a fixed plate, a sliding frame, a first support plate, a lower mold, positioning rods, and a first cylinder. The fixed plate is fixedly installed on the left side of the frame, the sliding frame is slidably connected to the fixed plate, the first support plate is fixedly installed on the right side of the sliding frame, the lower mold is fixedly installed in the middle of the first support plate, a plurality of positioning rods are fixedly installed on the right side wall of the first support plate, the first cylinder is fixedly installed on the left side wall of the fixed plate, and the output end of the first cylinder is fixedly connected to the left side wall of the first support plate. A vent hole and a circular liquid inlet channel are provided on the upper side of the puncture needle.

[0010] Furthermore, the lower mold device also includes: side forming components, with two side forming components respectively installed on the front and rear sides of the first support plate;

[0011] Furthermore, the side forming assembly includes: a fixed frame, a sliding rod, a side mold, and a second cylinder. The fixed frame is fixedly installed on the right side of the first support plate, and the plurality of sliding rods are slidably connected to the fixed frame. The side mold is fixedly installed on the side of the sliding rods near the lower mold, and the second cylinder is fixedly installed on the side of the fixed frame away from the lower mold. The output shaft of the second cylinder is fixedly connected to the side mold.

[0012] Furthermore, the upper mold device includes: a first bracket and an upper mold, the first bracket being fixedly installed on the right side of the frame, the upper mold being fixedly installed on the left side wall of the first bracket, and the upper mold being provided with an injection port;

[0013] Furthermore, the upper mold device also includes: a sliding bracket, a push rod, and a third cylinder. The sliding bracket is slidably connected inside the first bracket. Multiple push rods are fixedly installed on the left side of the sliding bracket. The third cylinder is fixedly installed on the right side of the first bracket. The output end of the third cylinder is fixedly connected to the right side of the sliding bracket.

[0014] Furthermore, the synchronous blowing device includes: a second bracket, an extension bracket, a first rack and a gear. The second bracket is fixedly installed on the upper side of the frame, the extension bracket is fixedly installed on the upper side of the first support plate, the first rack is fixedly installed on the upper side of the extension bracket, and the gear is rotatably connected to the middle side of the second bracket via a rotating shaft. The first rack and the gear mesh with each other.

[0015] Furthermore, the synchronous blowing device also includes: a guide rail, a slider, and a second rack. The guide rail is fixedly installed on the middle side of the second bracket, and multiple sliders are slidably connected to the guide rail. The second rack is fixedly installed on the side of the slider away from the guide rail, and the second rack and the gear mesh with each other.

[0016] Furthermore, a connecting pipe is fixedly installed on the front side of the second rack, and multiple nozzles are fixedly installed on the lower side of the connecting pipe;

[0017] Furthermore, a guide frame is installed on the middle side of the frame, and a receiving frame is provided on the lower side of the guide frame.

[0018] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model moves the first support plate to the left, which drives the extension bracket of the synchronous blowing device to the left. The extension bracket moves to the left, which drives the first rack to the left. The first rack moves to the left, which causes the gear to rotate. The gear rotates, which drives the second rack to move downward. The second rack moves downward, which drives the connecting pipe and multiple nozzles to move downward. Air is supplied to the connecting pipe through an external air supply device. The nozzle blows out gas to blow down the piercing needle. At the same time, it cools and cleans the upper mold, lower mold and side mold, which is conducive to the linkage and synchronous material feeding when demolding.

[0019] 2. The puncture needle, formed by the upper mold, lower mold and side mold, eliminates the step on the upper side of the puncture needle and reduces the size of the upper cylindrical tip, making the improved puncture needle easier to insert into the medicine bottle; the three groove-shaped liquid inlet channels are changed into one circular liquid inlet channel, so that when the puncture needle is inserted into the medicine bottle, the vent and the circular liquid inlet channel enter the medicine bottle at the same time, which makes it less likely for the medicine to flow out. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0021] Figure 2 This is a front view of the present utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ;

[0024] Figure 5 This is a partial structural diagram of the upper mold, lower mold, and side mold of this utility model. Figure 1 ;

[0025] Figure 6 This is a partial structural diagram of the lower mold of this utility model;

[0026] Figure 7 This is a partial structural diagram of the upper mold, lower mold, and side mold of this utility model. Figure 2 ;

[0027] Figure 8 This is a schematic diagram of the structure of the puncture needle of this utility model and a traditional puncture needle. Figure 1 ;

[0028] Figure 9 This is a schematic diagram of the structure of the puncture needle of this utility model and a traditional puncture needle. Figure 2 .

[0029] In the diagram: 1. Frame; 2. Lower mold assembly; 21. Fixed plate; 22. Sliding frame; 23. First support plate; 24. Lower mold; 25. Positioning rod; 26. First cylinder; 27. Fixed frame; 28. Sliding rod; 29. ​​Side mold; 210. Second cylinder; 3. Upper mold assembly; 31. First bracket; 32. Upper mold; 33. Sliding bracket; 34. Push rod; 35. Third cylinder; 4. Synchronous blowing device; 41. Second bracket; 42. Extension bracket; 43. First rack; 44. Gear; 45. Guide rail; 46. Slider; 47. Second rack; 48. Connecting pipe; 49. Nozzle; 5. Puncture needle; 51. Vent hole; 52. Circular liquid inlet channel; 6. Guide frame. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0032] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-9A puncture needle forming mold includes a frame 1, and further includes: a lower mold device 2, an upper mold device 3, a synchronous blowing device 4, and a puncture needle 5. The lower mold device 2 is installed on the left side of the frame 1, the upper mold device 3 is installed on the right side of the frame 1, and the synchronous blowing device 4 is installed on the upper side of the lower mold device 2. The lower mold device 2 includes: a fixed plate 21, a sliding frame 22, a first support plate 23, a lower mold 24, positioning rods 25, and a first cylinder 26. The fixed plate 21 is fixedly installed on the left side of the frame 1, the sliding frame 22 is slidably connected to the fixed plate 21, the first support plate 23 is fixedly installed on the right side of the sliding frame 22, the lower mold 24 is fixedly installed on the middle side of the first support plate 23, a plurality of positioning rods 25 are fixedly installed on the right side wall of the first support plate 23, the first cylinder 26 is fixedly installed on the left side wall of the fixed plate 21, and the output end of the first cylinder 26 is fixedly connected to the left side wall of the first support plate 23. The upper side of the puncture needle 5 is provided with a vent hole 51 and a circular liquid inlet channel 52.

[0033] The lower mold device 2 moves to the right and gets closer to the upper mold device 3. After the piercing needle 5 is injection molded by the constraints of the lower mold device 2 and the upper mold device 3, the lower mold device 2 moves to the left and leaves the upper mold device 3. The leftward movement of the lower mold device 2 triggers the synchronous blowing device 4, which moves downward to the position of the piercing needle 5 and blows the piercing needle 5 down.

[0034] The first cylinder 26 of the lower mold device 2 extends and drives the first support plate 23 to move to the right. The first support plate 23 moves to the right and drives the lower mold 24 to move to the right. The positioning rod 25 is inserted into the upper mold device 3 for auxiliary positioning. The lower mold 24 moves into the upper mold device 3 to complete the mold closing.

[0035] The lower mold device 2 further includes: side forming components, and two side forming components are respectively installed on the front and rear sides of the first support plate 23.

[0036] The side forming assembly includes: a fixed frame 27, a sliding rod 28, a side mold 29, and a second cylinder 210. The fixed frame 27 is fixedly installed on the right side of the first support plate 23. The multiple sliding rods 28 are slidably connected to the fixed frame 27. The side mold 29 is fixedly installed on the side of the sliding rods 28 near the lower mold 24. The second cylinder 210 is fixedly installed on the side of the fixed frame 27 away from the lower mold 24. The output shaft of the second cylinder 210 is fixedly connected to the side mold 29.

[0037] The output end of the second cylinder 210 of the side forming component extends, driving the side mold 29 to move towards the lower mold 24, and the sliding rod 28 assists the side mold 29 to slide.

[0038] The upper mold device 3 includes a first support 31 and an upper mold 32. The first support 31 is fixedly installed on the right side of the frame 1, and the upper mold 32 is fixedly installed on the left side wall of the first support 31. The upper mold 32 is provided with an injection port for injecting material into the upper mold 32.

[0039] The upper mold device 3 further includes: a sliding bracket 33, a push rod 34 and a third cylinder 35. The sliding bracket 33 is slidably connected inside the first bracket 31. Multiple push rods 34 are fixedly installed on the left side of the sliding bracket 33. The third cylinder 35 is fixedly installed on the right side of the first bracket 31. The output end of the third cylinder 35 is fixedly connected to the right side of the sliding bracket 33.

[0040] The extension of the output end of the third cylinder 35 of the upper mold device 3 causes the sliding bracket 33 to move to the left. The movement of the sliding bracket 33 to the left causes the push rod 34 to move to the left, pushing the piercing needle 5 out of the upper mold 32.

[0041] The synchronous blowing device 4 includes: a second bracket 41, an extension bracket 42, a first rack 43, and a gear 44. The second bracket 41 is fixedly installed on the upper side of the frame 1, the extension bracket 42 is fixedly installed on the upper side of the first support plate 23, the first rack 43 is fixedly installed on the upper side of the extension bracket 42, and the gear 44 is rotatably connected to the middle side of the second bracket 41 through a rotating shaft. The first rack 43 and the gear 44 mesh with each other.

[0042] The synchronous blowing device 4 further includes: a guide rail 45, a slider 46, and a second rack 47. The guide rail 45 is fixedly installed on the middle side of the second bracket 41. A plurality of sliders 46 are slidably connected to the guide rail 45. The second rack 47 is fixedly installed on the side of the slider 46 away from the guide rail 45. The second rack 47 and the gear 44 mesh with each other.

[0043] A connecting pipe 48 is fixedly installed on the front side of the second rack 47, and a plurality of nozzles 49 are fixedly installed on the lower side of the connecting pipe 48.

[0044] A guide frame 6 is installed on the middle side of the frame 1, and a receiving frame is provided on the lower side of the guide frame 6.

[0045] The first support plate 23 moves to the left, causing the extension bracket 42 of the synchronous blowing device 4 to move to the left. The extension bracket 42 moves to the left, causing the first rack 43 to move to the left. The first rack 43 moves to the left, causing the gear 44 to rotate. The rotation of the gear 44 causes the second rack 47 to move downward. The downward movement of the second rack 47 causes the connecting pipe 48 and multiple nozzles 49 to move downward. Air is supplied to the connecting pipe 48 through an external air supply device. The nozzles 49 blow out gas to blow down the piercing needle 5, while simultaneously cooling and cleaning the upper mold 32, lower mold 24 and side mold 29, which is beneficial for synchronous material feeding during mold removal.

[0046] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A puncture needle forming mold, comprising a frame (1), characterized in that, Also includes: The machine includes a lower mold device (2), an upper mold device (3), a synchronous blowing device (4), and a piercing needle (5). The lower mold device (2) is installed on the left side of the frame (1), the upper mold device (3) is installed on the right side of the frame (1), and the synchronous blowing device (4) is installed on the upper side of the lower mold device (2). The lower mold device (2) includes a fixed plate (21), a sliding frame (22), a first support plate (23), a lower mold (24), a positioning rod (25), and a first cylinder (26). The fixed plate (21) is fixedly installed on the left side of the frame (1), and the sliding frame... (22) Sliding connection on fixed plate (21), the first support plate (23) is fixedly installed on the right side of sliding frame (22), the lower mold (24) is fixedly installed on the middle side of the first support plate (23), a plurality of positioning rods (25) are fixedly installed on the right side wall of the first support plate (23), the first cylinder (26) is fixedly installed on the left side wall of fixed plate (21), the output end of the first cylinder (26) is fixedly connected to the left side wall of the first support plate (23), and the upper side of the puncture needle (5) is provided with a vent hole (51) and a circular liquid inlet channel (52).

2. The puncture needle forming mold according to claim 1, characterized in that, The lower mold device (2) further includes: side forming components, and the two side forming components are respectively installed on the front and rear sides of the first support plate (23).

3. The puncture needle forming mold according to claim 2, characterized in that, The side forming assembly includes: a fixed frame (27), a sliding rod (28), a side mold (29), and a second cylinder (210). The fixed frame (27) is fixedly installed on the right side of the first support plate (23). A plurality of sliding rods (28) are slidably connected to the fixed frame (27). The side mold (29) is fixedly installed on the side of the sliding rod (28) close to the lower mold (24). The second cylinder (210) is fixedly installed on the side of the fixed frame (27) away from the lower mold (24). The output shaft of the second cylinder (210) is fixedly connected to the side mold (29).

4. The puncture needle forming mold according to claim 1, characterized in that, The upper mold device (3) includes: a first bracket (31) and an upper mold (32). The first bracket (31) is fixedly installed on the right side of the frame (1), and the upper mold (32) is fixedly installed on the left side wall of the first bracket (31). An injection port is provided on the upper mold (32).

5. The puncture needle forming mold according to claim 4, characterized in that, The upper mold device (3) further includes: a sliding bracket (33), a push rod (34) and a third cylinder (35). The sliding bracket (33) is slidably connected inside the first bracket (31). Multiple push rods (34) are fixedly installed on the left side of the sliding bracket (33). The third cylinder (35) is fixedly installed on the right side of the first bracket (31). The output end of the third cylinder (35) is fixedly connected to the right side of the sliding bracket (33).

6. The puncture needle forming mold according to claim 1, characterized in that, The synchronous blowing device (4) includes: a second bracket (41), an extension bracket (42), a first rack (43), and a gear (44). The second bracket (41) is fixedly installed on the upper side of the frame (1). The extension bracket (42) is fixedly installed on the upper side of the first support plate (23). The first rack (43) is fixedly installed on the upper side of the extension bracket (42). The gear (44) is rotatably connected to the middle side of the second bracket (41) through a rotating shaft. The first rack (43) and the gear (44) mesh with each other.

7. The puncture needle forming mold according to claim 6, characterized in that, The synchronous blowing device (4) further includes: a guide rail (45), a slider (46), and a second rack (47). The guide rail (45) is fixedly installed on the middle side of the second bracket (41). Multiple sliders (46) are slidably connected to the guide rail (45). The second rack (47) is fixedly installed on the side of the slider (46) away from the guide rail (45). The second rack (47) and the gear (44) mesh with each other. A connecting pipe (48) is fixedly installed on the front side of the second rack (47). Multiple nozzles (49) are fixedly installed on the lower side of the connecting pipe (48).

8. The puncture needle forming mold according to claim 1, characterized in that, A guide frame (6) is installed on the middle side of the frame (1), and a receiving frame is provided on the lower side of the guide frame (6).

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