A mosaic injection needle sheath press-fitting device

Abstract

The utility model relates to a kind of inlay injection needle sheath press-fitting device, it is characterized in that, including sheath press-fitting support, sheath press-fitting support is equipped with vertically arranged sheath press-fitting cylinder, a group of sheath pressing plate is equipped on the piston rod of sheath press-fitting cylinder, a group of vertically downward arranged sheath pressing hole is equipped on the sheath pressing plate, the end of the sheath can be sleeved in the sheath pressing hole, the side pressing plate and the sheath side are radially friction, make the sheath rotate on the needle head while being pressed on the needle head, make the four clamping slots of the sheath and the clamping rib part on the needle seat one-to-one correspondence, then under the action of sheath press-fitting cylinder, the sheath and the needle seat stably clamped, sheath is press-fitted on needle head, the assembly of needle head and sheath is completed, and form stable connection.

Description

Technical Field

[0001] This utility model relates to the field of injection needle manufacturing technology, and in particular to a device for pressing and fitting an inlaid injection needle sheath. Background Technology

[0002] An embedded injection needle includes a needle hub, a needle tube, and a sheath. The needle hub is a conical shell with a snap-fit ​​ridge on the outer surface of the middle part of the needle hub. The inner sidewall of the sheath is provided with a snap groove that matches the snap-fit ​​ridge. The sheath is fitted into the snap-fit ​​ridge on the needle hub through the snap groove, so that the sheath is installed on the needle hub to protect the needle tube.

[0003] The assembly of embedded injection needles or aluminum-base injection needles is generally done manually, which is inefficient and the needle can easily cause injury. Although there are occasional automated assembly devices, they cannot automatically assemble the sheath. During the assembly process, the slot of the sheath and the locking edge on the needle base cannot be aligned, resulting in assembly failure. Utility Model Content

[0004] The purpose of this invention is to overcome the defects in the existing technology and provide a device for pressing and fitting an inlay injection needle sheath.

[0005] To achieve the above objectives, the technical solution of this utility model is to design an inlay injection needle sheath pressing device, including a sheath pressing bracket, a vertically arranged sheath pressing cylinder on the sheath pressing bracket, a set of sheath pressing plates on the piston rod of the sheath pressing cylinder, and a set of vertically downward arranged sheath pressing holes on the sheath pressing plates, the sheath pressing holes being able to fit onto the end of the sheath.

[0006] A further preferred technical solution is that the sheath pressing bracket is also provided with a pair of first positioning cylinders and second positioning cylinders. A first positioning clamp is connected to the piston rod of the first positioning cylinder. The first positioning clamp is provided with a set of V-shaped grooves. A second positioning clamp is connected to the piston rod of the second positioning cylinder. The second positioning clamp is provided with a set of V-shaped grooves. The two sets of V-shaped grooves are opposite each other.

[0007] In a further preferred embodiment, the sheath pressing bracket is further provided with a sheath driving cylinder arranged along the tangent direction of the rotary table, the piston rod of the sheath driving cylinder is provided with a sheath side pressure bracket, the sheath side pressure bracket is provided with a sheath side pressure cylinder arranged along the radial direction of the rotary table, and the piston rod of the sheath side pressure cylinder is provided with a side pressure plate.

[0008] In a further preferred embodiment, a layer of resin material is provided on the side pressure plate.

[0009] The advantages and beneficial effects of this utility model are as follows: through the cooperation of the radially arranged sheath drive cylinder and the sheath side pressure cylinder, the side pressure plate presses on the side of the sheath and moves radially at the same time. At this time, the side pressure plate and the side of the sheath rub against each other radially, so that the sheath rotates on the needle head while pressing it up and down. This makes the four slots of the sheath correspond one-to-one with the snap-fit ​​edges on the needle seat. Then, under the action of the sheath pressing cylinder, the sheath is stably snapped into the needle seat, pressing the sheath onto the needle head, completing the assembly of the needle head and the sheath, and forming a stable connection. Attached Figure Description

[0010] Figure 1 The axial side of this utility model Figure 1 ;

[0011] Figure 2 The axial side of this utility model Figure 2 ;

[0012] Figure 3 The axial side of this utility model Figure 3 ;

[0013] Figure 4 This is a schematic diagram illustrating an embodiment of the present utility model;

[0014] In the diagram: 1. Sheath pressing cylinder; 2. Sheath pressure plate; 3. First positioning cylinder; 4. Sheath pressing bracket; 5. Sheath side pressure bracket; 6. First positioning clamp; 7. Second positioning clamp; 8. Second positioning cylinder; 9. Side pressure plate; 10. Resin material layer; 12. Sheath side pressure cylinder; 13. Sheath; 14. Rotary table. Detailed Implementation

[0015] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0016] like Figure 1-4 As shown, an inlay needle sheath pressing device can be installed on a frame outside the rotary table 14. The inlay needle sheath pressing device includes a sheath pressing bracket 4. The sheath pressing bracket 4 is provided with a vertically arranged sheath pressing cylinder 1. The piston rod of the sheath pressing cylinder 1 is provided with a set of sheath pressing plates 2. The sheath pressing plates 2 are provided with a set of vertically downward arranged sheath pressing holes. The sheath pressing holes can be fitted onto the end of the sheath.

[0017] The sheath pressing bracket 4 is also provided with a pair of first positioning cylinders 3 and second positioning cylinders 8 arranged radially along the rotary table. The piston rod of the first positioning cylinder 3 faces the rotary table, and a first positioning clamp 6 is connected to the piston rod. The first positioning clamp 6 has a set of V-shaped grooves with openings facing the rotary table. The piston rod of the second positioning cylinder 8 faces the sheath pressing bracket 4, and a second positioning clamp 7 is connected to the piston rod. The second positioning clamp 7 has a set of V-shaped grooves with openings facing the sheath pressing bracket 4. When the sheath 13 is placed on the needle, the positioning clamps on both sides are clamped on the outside of the sheath 13 by the two sides of the sheath, so that the sheath 13 can be stably placed on the needle.

[0018] A sheath drive cylinder 11 is also provided on the sheath pressing bracket 4 corresponding to the lower end of the sheath, arranged along the tangent direction of the rotary table. A sheath side pressure bracket 5 is provided on the piston rod of the sheath drive cylinder 11. A sheath side pressure cylinder 12 is provided on the sheath side pressure bracket 5, arranged along the radial direction of the rotary table. A side pressure plate 9 is provided on the piston rod of the sheath side pressure cylinder 12. The side pressure plate 9 is provided with a resin material layer 10. The sheath drive cylinder 11 arranged radially and the sheath side pressure cylinder 12 are connected by... When the side pressure plate 9 presses against the side of the sheath and moves radially, the side pressure plate 9 rubs radially against the side of the sheath 13, allowing the sheath 13 to rotate slightly on the needle head while being pressed down. This causes the four slots of the sheath to correspond one-to-one with the snap-fit ​​edges on the needle seat. Then, under the action of the sheath pressing cylinder 1, the sheath 13 is stably snapped into the needle seat, pressing the sheath 13 onto the needle head, completing the assembly of the needle head and the sheath, and forming a stable connection.

[0019] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An inlaid syringe needle sheath press fitting device characterized by comprising: The device includes a sheath pressing bracket, on which a vertically arranged sheath pressing cylinder is provided. A set of sheath pressing plates is provided on the piston rod of the sheath pressing cylinder. A set of vertically downward-arranged sheath pressing holes is provided on the sheath pressing plates, and the sheath pressing holes can be fitted onto the end of the sheath.

2. A mosaic syringe needle sheath press fitting device according to claim 1, characterized in that The sheath pressing bracket is also equipped with a pair of first positioning cylinders and second positioning cylinders. A first positioning clamp is connected to the piston rod of the first positioning cylinder. The first positioning clamp is provided with a set of V-grooves. A second positioning clamp is connected to the piston rod of the second positioning cylinder. The second positioning clamp is provided with a set of V-grooves. The two sets of V-grooves are opposite each other.

3. A mosaic syringe needle sheath press fitting device according to claim 2, characterized in that The sheath pressing bracket is also provided with a sheath driving cylinder arranged along the tangent direction of the rotary table. The piston rod of the sheath driving cylinder is provided with a sheath side pressure bracket. The sheath side pressure bracket is provided with a sheath side pressure cylinder arranged along the radial direction of the rotary table. The piston rod of the sheath side pressure cylinder is provided with a side pressure plate.

4. A mosaic syringe needle sheath press fitting device according to claim 3, characterized in that A layer of resin material is provided on the side pressure plate.

Images