CN-224210560-U - Trocar and sleeve feeding mechanism thereof

CN224210560UCN 224210560 UCN224210560 UCN 224210560UCN-224210560-U

Abstract

The utility model relates to a trocar and a cannula feeding mechanism thereof, the trocar comprises an upper connecting part and a needle part, the needle part is connected below the upper connecting part, the periphery of the lower end of the needle part is provided with a lower spreading part for spreading a cannula, the left side face and the right side face of the tail end of the lower spreading part are chamfered, the left side face, the right side face and the bottom face form inverted trapezoids, the width of the bottom face of the lower spreading part is smaller than the middle width of the lower spreading part, the periphery of the upper connecting part is provided with an upper spreading part, the upper spreading part and the lower spreading part are separated, the left side face and the right side face of the tail end of the upper spreading part are chamfered, the structure design of the trocar is novel, the periphery of the lower end of the needle part is provided with a lower spreading part, the left side face and the right side face of the tail end of the lower spreading part form inverted trapezoids, the passing cannula is conveniently spread, the structure design of the cannula feeding mechanism is reasonable, the cannula feeding from bottom to top can be realized, the motor control accuracy is high, the feeding speed is fast, and the production requirements are met.

Inventors

CHEN HUI
LI WEI

Assignees

东莞市锦徽电子设备有限公司

Dates

Publication Date: 20260508
Application Date: 20250530

Claims (6)

1. The trocar comprises an upper connecting part and a needle part, wherein the needle part is connected below the upper connecting part, the trocar is characterized in that a lower stretching part for stretching the sleeve is arranged at the periphery of the lower end of the needle part, the left side face, the right side face and the bottom face of the tail end of the lower stretching part are beveled, the left side face, the right side face and the bottom face form a trapezoid, the width of the bottom face of the lower stretching part is smaller than the middle width of the lower stretching part, an upper stretching part is arranged at the periphery of the upper connecting part, the upper stretching part and the lower stretching part are separated, and the left side face and the right side face of the tail end of the upper stretching part are beveled.
2. A trocar according to claim 1 wherein the anterior and posterior sides of the inferior buttress portion are beveled and the left, right, anterior and posterior sides of the distal end of the inferior buttress portion define a flattened port.
3. A sleeve feeding mechanism is characterized by comprising a fixed seat, a bottom plate, a motor base, a motor, a first feeding wheel, a second feeding wheel and the sleeve needle described in claim 1 or 2, wherein the bottom plate is arranged in front of the fixed seat, the sleeve needle is arranged on the front side below the bottom plate, the motor base is arranged on the rear side below the bottom plate, the motor is arranged behind the motor base, the motor drives the first feeding wheel to rotate, and the sleeve needle is positioned between the first feeding wheel and the second feeding wheel.
4. The sleeve feeding mechanism according to claim 3, further comprising a hinge seat, a movable block and a spring, wherein the second feeding wheel is rotatably mounted on the movable block, the hinge seat is hinged below the bottom plate, the movable block is mounted on the hinge seat, one end of the spring is propped against the bottom plate, the other end of the spring is propped against the hinge seat, and the spring drives the second feeding wheel to be close to the first feeding wheel.
5. A cannula feeding mechanism as claimed in claim 3, wherein the trocar is suspended in the centre of the bearing housing and a stop bar is provided directly above the trocar to bear against the trocar.
6. A sleeve feeding mechanism according to claim 3, wherein an inductor for detecting the sleeve is arranged above the bottom plate.

Description

Trocar and sleeve feeding mechanism thereof Technical Field The utility model relates to the field of production equipment of batteries and capacitors, in particular to a trocar and a cannula feeding mechanism thereof. Background After the battery and the capacitor are manufactured, a plastic sleeve printed with information such as positive and negative marks, a manufacturer and the like needs to be sleeved on the outer periphery of the shell, and a machine device for completing the processing procedure is called a sleeve machine. The trocar structure of the existing jacketing machine is shown in fig. 1, the trocar supports and guides the sleeve by means of the slender needle part, but the existing jacketing machine has the defects that the sleeve cannot be supported more, the later-stage sleeve battery installation is not facilitated, the structural design of the existing jacketing machine is complex, and the feeding speed and feeding accuracy need to be further improved. Disclosure of utility model Aiming at the defects in the prior art, the technical problem to be solved by the utility model is how to optimize the trocar structure and the cannula feeding mechanism, and the specific technical scheme is as follows: the trocar comprises an upper connecting part and a needle part, wherein the needle part is connected below the upper connecting part, a lower stretching part for stretching the sleeve is arranged at the periphery of the lower end of the needle part, the left side face, the right side face and the bottom face of the tail end of the lower stretching part are chamfered, the left side face, the right side face and the bottom face form a trapezoid, the width of the bottom face of the lower stretching part is smaller than the middle width of the lower stretching part, an upper stretching part is arranged at the periphery of the upper connecting part, the upper stretching part and the lower stretching part are separated, and the left side face and the right side face of the tail end of the upper stretching part are chamfered. As a preferred scheme of the trocar of the utility model, the front side surface and the rear side surface of the lower opening part are chamfered, and the left side surface, the right side surface, the front side surface and the rear side surface of the tail end of the lower opening part form a flat opening. The utility model provides a sleeve pipe feed mechanism, includes fixing base, bottom plate, motor cabinet, motor, first feed wheel, second feed wheel and foretell trocar, the place ahead mounting plate of fixing base, the trocar is installed to bottom plate below front side, the motor cabinet is installed to bottom plate below rear side, the motor is installed at the motor cabinet rear, the first feed wheel of motor drive rotates, the trocar is located between first feed wheel and the second feed wheel. As a preferable scheme of the sleeve feeding mechanism, the sleeve feeding mechanism further comprises a hinge seat, a movable block and a spring, wherein the second feeding wheel is rotatably arranged on the movable block, the hinge seat is hinged below the bottom plate, the movable block is arranged on the hinge seat, one end of the spring is propped against the bottom plate, the other end of the spring is propped against the hinge seat, and the spring drives the second feeding wheel to be close to the first feeding wheel. As a preferable scheme of the sleeve feeding mechanism, a sleeve needle is suspended in the center of a bearing seat, and a limiting rod is arranged right above the sleeve needle to prop against the sleeve needle. As a preferable scheme of the sleeve feeding mechanism, an inductor for detecting the sleeve is arranged above the bottom plate. The beneficial effects are that: ⑴ The trocar has novel structural design, the periphery of the lower end of the needle part is provided with a lower opening part, the left side surface and the right side surface of the tail end of the lower opening part are chamfered, and the left side surface, the right side surface and the bottom surface form an inverted trapezoid, so that the passing cannula can be conveniently opened; ⑵ The sleeve feeding mechanism is reasonable in structural design, can realize the movement feeding of the sleeve from bottom to top, is high in motor control accuracy and high in feeding speed, and meets production requirements. Drawings FIG. 1 is a perspective view of the prior art; FIG. 2 is a perspective view of a trocar of the present utility model; FIG. 3 is a front view of the trocar of the present utility model; FIG. 4 is a side view of the trocar of the present utility model; FIG. 5 is a perspective view of the sleeve loading mechanism of the present utility model; FIG. 6 is an exploded view of the sleeve loading mechanism of the present utility model; Fig. 7 is a cross-sectional view of the sleeve loading mechanism of the present utility model. Detailed Description The following describes