Efficient necking device for needle tube pen point

By combining a drive motor and an electric hydraulic cylinder, efficient spinning of the syringe pen tip is achieved, solving the problems of irregular deformation and shaking of the inner wall caused by ball rolling, thus improving precision and safety.

CN223997049UActive Publication Date: 2026-03-17WENZHOU JINRUI PEN IND CO LTD
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Patent Information

Application Number
CN202520251703.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2026-03-17
Estimated Expiration
2035-02-18

AI Technical Summary

Technical Problem

Existing syringe pen tip processing devices generate gaps during ball rolling, leading to irregular deformation of the inner wall, insufficient precision, and the lack of a limiting structure causes wobbling, reducing efficiency. Furthermore, the high temperature of the spinning head poses a safety hazard.

Method used

The system uses a drive motor to power the ball screw and spinning head for spinning operations, combined with an electric hydraulic cylinder to fix the needle tube, a suction fan for cooling, and a collection structure to improve precision and safety.

Benefits of technology

It improves the precision and efficiency of the pen tip, reduces the scrap rate, avoids safety hazards, meets accuracy requirements, and saves time.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223997049U_ABST
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Abstract

The utility model relates to the technical field of needle tube pen point processing, and discloses a needle tube pen point efficient necking device which comprises a control mechanism, an operation groove and a base, a telescopic rod is installed at the lower end of the control mechanism, a motor is installed at the lower end of the telescopic rod, a dismounting plate is installed at the lower end of the motor, and a spinning head is installed at the lower end of the dismounting plate; a lifting chamber is installed on the rear end wall of the base, a driving motor is installed at the upper end of the lifting chamber, and the driving motor drives a ball screw to rotate, drives a screw sliding base to move downwards, drives a sliding frame to move downwards and drives a control mechanism to move downwards through a motor shaft; the control mechanism controls a telescopic rod to move downwards, drives a spinning head to move downwards and starts a motor; the spinning head is driven to rotate, the inner wall of the needle tube pen point is subjected to strength shrinking operation, spinning of the spinning head replaces rolling of a ball, gaps are prevented from being generated during rolling operation of the ball, precision is improved, irregular deformation of the inner wall of the pen point is prevented, the rejection rate is low, precision is sufficient, and the precision requirement is met.
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Description

Technical Field

[0001] This utility model relates to the field of needle pen tip processing technology, specifically a high-efficiency necking device for needle pen tips. Background Technology

[0002] In the processing of syringe pen tips, the necking process is a crucial step. Currently, existing syringe pen tip necking devices use ball bearing rolling, which creates gaps that can lead to irregular deformation of the pen tip's inner wall, resulting in a high scrap rate and insufficient precision, failing to meet accuracy requirements. Furthermore, the lack of a limiting structure within the working groove during the necking process causes the pen tip to wobble, reducing efficiency and wasting time. Additionally, the spinning head generates high temperatures during this process, affecting the operation and creating significant safety hazards. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a high-efficiency necking device for syringe pen tips, which has advantages such as high efficiency and solves the problems mentioned in the background technology.

[0004] To achieve the aforementioned high efficiency, this utility model provides the following technical solution: a high-efficiency necking device for syringe pen tips, comprising a control mechanism, a working groove, and a base. A telescopic rod is installed at the lower end of the control mechanism, a motor is installed at the lower end of the telescopic rod, a disassembly plate is installed at the lower end of the motor, and a spinning head is installed at the lower end of the disassembly plate.

[0005] A lifting chamber is installed on the rear wall of the base. A drive motor is installed on the upper end of the lifting chamber. A ball screw is installed on the lower end of the drive motor through the motor shaft. A screw slide is installed on the ball screw. A sliding groove is provided in the middle of the front wall of the lifting chamber. The front end of the screw slide passes through the sliding groove and is equipped with a sliding frame. The front end of the sliding frame is fixedly connected to the control mechanism.

[0006] As a further improvement of this utility model: a working groove is installed at the front of the upper end of the base, and a vent hole is provided at the lower part of the inner side wall of the working groove. Four electric hydraulic cylinders are provided on the outer side wall of the working groove. The inner end of each electric hydraulic cylinder passes through the working groove and is equipped with a suction cup. When the four electric hydraulic cylinders are activated, the four suction cups move inward to fix the outer side wall of the syringe pen tip, preventing the syringe pen tip from shaking, thereby improving the efficiency of the operation and saving time.

[0007] As a further improvement of this utility model: a blower box is installed at the upper rear of the base, an air inlet is provided at the upper end of the blower box, a filter screen is provided on the surface of the air inlet, and a duct is connected to the lower front end of the blower box. The front end of the duct is connected to the working trough. When the suction fan is started, air enters the blower box through the air inlet, then enters the working trough through the duct, and enters the working trough through the vent hole to cool the spinning head, avoid affecting the operation, and prevent significant safety hazards.

[0008] As a further improvement of this utility model: an inclined groove is provided on the front part of the left side wall of the base, the lower end of the working groove is connected to the inclined groove, and a collection trolley is provided on the left side of the working groove. The debris generated during the operation enters the collection trolley through the inclined groove for collection.

[0009] As a further improvement of this utility model: a drawer is slidably installed on the lower part of the left side wall of the lifting chamber, a storage slot is provided above the drawer, and a door is hinged to the rear side wall of the storage slot. When the door is opened, various types of spinning heads can be stored in the storage slot for easy retrieval. The drawer can be pulled out and items can be placed in the drawer at any time.

[0010] As a further improvement of this utility model: four columns are installed at the four corners of the lower end of the base, and the columns support the base, thereby improving stability.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In this utility model, the drive motor drives the ball screw to rotate through the motor shaft, which in turn drives the screw slide to move downward, drives the sliding frame to move downward, drives the control mechanism to move downward, and the control mechanism controls the telescopic rod to move downward, which in turn drives the spinning head to move downward. The motor is started, which drives the spinning head to rotate and perform a compression operation on the inner wall of the syringe pen tip. The spinning operation is performed by the spinning head instead of the rolling of the ball, which avoids the gap generated during the rolling operation of the ball, improves the precision, prevents irregular deformation of the inner wall of the pen tip, has a low scrap rate, and meets the accuracy requirements.

[0013] 2. In this utility model, by activating four electric hydraulic cylinders, four suction cups are moved inward to fix the outer wall of the syringe pen tip, preventing the syringe pen tip from shaking, thereby improving work efficiency and saving time.

[0014] 3. In this utility model, by starting the suction fan, air enters the blower box through the air inlet, then enters the working trough through the duct, and enters the working trough through the vent to cool the spinning head, thus avoiding any impact on the operation and preventing significant safety hazards. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the lifting chamber in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the blower box in this utility model;

[0018] Figure 4 This is a schematic diagram of the appearance of the spinning head in this utility model.

[0019] In the diagram: 1. Lifting chamber; 2. Drive motor; 3. Slide rail; 4. Sliding frame; 5. Control mechanism; 6. Telescopic rod; 7. Blower box; 8. Conduit; 9. Inclined chute; 10. Working chute; 11. Electric hydraulic cylinder; 12. Base; 13. Column; 14. Collection trolley; 15. Drawer; 16. Box door; 17. Storage chute; 18. Spinning head; 19. Screw slide; 20. Ball screw; 21. Motor. Detailed Implementation

[0020] 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.

[0021] It should be noted that the control mechanism 5 and the drive motor 2 are both existing technologies and are common knowledge to those skilled in the art, and will not be elaborated upon here.

[0022] Please see Figures 1-4 In this embodiment of the utility model, the high-efficiency necking device for syringe pen tip includes a control mechanism 5, a working groove 10 and a base 12. A telescopic rod 6 is installed at the lower end of the control mechanism 5, a motor 21 is installed at the lower end of the telescopic rod 6, a disassembly plate is installed at the lower end of the motor 21, and a spinning head 18 is installed at the lower end of the disassembly plate.

[0023] A lifting chamber 1 is installed on the rear wall of the base 12. A drive motor 2 is installed on the upper end of the lifting chamber 1. A ball screw 20 is installed on the lower end of the drive motor 2 via the motor shaft. A screw slide 19 is installed on the ball screw 20. A slide groove 3 is provided in the middle of the front wall of the lifting chamber 1. The front end of the screw slide 19 passes through the slide groove 3 and is equipped with a sliding frame 4. The front end of the sliding frame 4 is fixedly connected to the control mechanism 5.

[0024] The base 12 has a working groove 10 installed at the front upper part. The lower part of the inner wall of the working groove 10 has ventilation holes. Four electric hydraulic cylinders 11 are installed on the outer wall of the working groove 10. The inner ends of each electric hydraulic cylinder 11 pass through the working groove 10 and are equipped with suction cups. Activating the four electric hydraulic cylinders 11 moves the four suction cups inward, fixing the outer wall of the syringe tip and preventing it from shaking, thus improving work efficiency and saving time. A blower box 7 is installed at the rear upper part of the base 12. The blower box 7 has an air inlet at its upper end, and a filter screen is installed on the surface of the air inlet. A conduit 8 is connected to the lower front end of the blower box 7. The front end of the conduit 8 is connected to the working groove 10. When the suction fan is activated, air enters the blower box 7 through the air inlet, then through the conduit 8 into the working groove 10, and finally through the ventilation holes. Cooling the spinning head 18 is performed to avoid affecting the operation and prevent significant safety hazards. A sloping groove 9 is provided on the front of the left side wall of the base 12, and the lower end of the working groove 10 is connected to the sloping groove 9. A collection trolley 14 is provided on the left side of the working groove 10. The debris generated during the operation enters the collection trolley 14 through the sloping groove 9 for collection. A drawer 15 is slidably installed on the lower left side wall of the lifting chamber 1. A storage slot 17 is provided above the drawer 15. A door 16 is hinged to the rear side wall of the storage slot 17. Opening the door 16 allows for the storage of various types of spinning heads 18 in the storage slot 17 for easy retrieval. Pulling out the drawer 15 allows for the placement of items at any time. Columns 13 are installed at the four corners of the lower end of the base 12. There are four columns 13, which support the base 12 and improve its stability.

[0025] The working principle of this utility model is as follows: Connect the device to a power source to ensure it is energized. Place the syringe tip inside the working groove 10. Activate the four electric hydraulic cylinders 11, causing the four suction cups to move inward and fix the outer wall of the syringe tip. Activate the drive motor 2, which drives the ball screw 20 to rotate via its motor shaft. This causes the screw slide 19 to move downward, which in turn causes the sliding frame 4 to move downward, which in turn causes the control mechanism 5 to move downward. The control mechanism 5 controls the telescopic rod 6 to move downward, causing the spinning head 18 to move downward. Activate the motor 21, which drives the spinning head 18 to rotate, thus fixing the inner wall of the syringe tip. The shrinking operation is performed by using the spinning head 18 instead of the rolling of the ball bearings, which avoids the gaps generated during the rolling operation and improves precision. The suction fan is started, and air enters the blower box 7 through the air inlet, then enters the working tank 10 through the duct 8, and enters the working tank 10 through the vent to cool the spinning head 18. The debris generated during the operation enters the collection trolley 14 through the inclined chute 9 for collection. The box door 16 is opened, and various types of spinning heads 18 can be stored in the storage tank 17 for easy access. The drawer 15 is pulled out and can be used to place items at any time.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A needle tube pen head efficient necking device, comprising a control mechanism (5), a work tank (10) and a base (12), the lower end of the control mechanism (5) is provided with an extension rod (6), the lower end of the extension rod (6) is provided with a motor (21), the lower end of the motor (21) is provided with a dismounting plate, the lower end of the dismounting plate is provided with a spinning head (18); characterized in that The rear end wall of the base (12) is provided with a lifting chamber (1), the upper end of the lifting chamber (1) is provided with a drive motor (2), the lower end of the drive motor (2) is provided with a ball screw (20) through a motor shaft, the upper end of the ball screw (20) is provided with a screw rod sliding seat (19), the front end wall of the lifting chamber (1) is provided with a sliding groove (3) in the middle, the front end of the screw rod sliding seat (19) passes through the sliding groove (3) and is provided with a sliding frame (4), the front end of the sliding frame (4) is fixedly connected with the control mechanism (5).

2. The high efficiency necking down device for a needle tube pen tip of claim 1, wherein: The upper end of the base (12) is provided with a work tank (10) in front, the inner side wall of the work tank (10) is provided with a ventilation hole in the lower part, the outer side wall of the work tank (10) is provided with four electric hydraulic cylinders (11), the inner end of the electric hydraulic cylinder (11) passes through the work tank (10) and is provided with a suction cup.

3. The high efficiency necking down device for a pen tip of a needle tube pen according to claim 1, characterized by: The upper end of the base (12) is provided with a blowing box (7) in the rear part, the upper end of the blowing box (7) is provided with an air inlet, the surface of the air inlet is provided with a filter screen, the front end of the blowing box (7) is connected with a conduit (8) in the lower part, the front end of the conduit (8) is communicated with the work tank (10).

4. The high efficiency necking down device for a pen barrel tip as defined in claim 1, wherein: The front part of the left side wall of the base (12) is provided with an inclined chute (9), the lower end of the work tank (10) is communicated with the inclined chute (9), the left side of the work tank (10) is provided with a collection trolley (14).

5. The high efficiency necking down device for a pen tip of a needle tube pen according to claim 1, characterized by: The lower part of the left side wall of the lifting chamber (1) is provided with a drawer (15) in sliding mode, the upper part of the drawer (15) is provided with a storage tank (17), the rear side wall of the storage tank (17) is hinged with a box door (16).

6. The high efficiency necking down device for a pen barrel tip as defined in claim 1 wherein: The lower end of the base (12) is provided with a stand column (13) at four corners, the stand column (13) is provided with four.