CN215755579U

CN215755579U - Cutting device for tourniquet winding machine

Info

Publication number: CN215755579U
Application number: CN202122169331.6U
Authority: CN
Inventors: 杨弘
Original assignee: Tianjin Himind Medical Technology Co ltd
Current assignee: Tianjin Himind Medical Technology Co ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-02-08
Anticipated expiration: 2031-09-08

Abstract

The utility model relates to a cutting device for a tourniquet winder. The device comprises a mounting bracket, a lower belt feeding roller device and an upper belt feeding roller device, wherein the lower belt feeding roller device is connected onto the mounting bracket; a cutter device and a tape guide roller device which are connected with the mounting bracket are respectively arranged on two sides of the lower tape feeding roller device; the eccentric wheel device is connected with the cutter device; the cutter device comprises a cutter sliding seat connected with the mounting bracket, an upper cutter is connected to the cutter sliding seat through a mounting pin shaft, and a lower cutter is arranged below the upper cutter; a cutter pressing plate detachably connected with the cutter sliding seat is arranged on the outer side of the cutter, and the cutter pressing plate can press and limit the upper cutter and the lower cutter; the lower part of the lower cutting knife is provided with a strip-shaped hole, and the eccentric wheel device is connected with the strip-shaped hole in a sliding way and drives the lower cutting knife to longitudinally reciprocate. The utility model avoids the phenomenon of blocking in the longitudinal moving process of the cutter and improves the working efficiency of the cutting device.

Description

Cutting device for tourniquet winding machine

Technical Field

The utility model belongs to the technical field of medical facilities, and particularly relates to a cutting device for a tourniquet winding machine.

Background

Tourniquets, also known as tourniquets, are major tools used for venous blood collection, intravenous injection, hemostasis, and the like. The blood vessel puncture-preventing hemostatic bag can temporarily block venous blood flow by binding the part to be punctured, is also used for a simple and effective hemostatic method in emergency treatment of limb massive hemorrhage, and achieves the purpose of hemostasis in a short time by blocking blood circulation through compressing the blood vessel. With the development of the medical industry, the wide and flat disposable tourniquet replaces the traditional hose-type tourniquet, and the common materials of the disposable tourniquet mainly comprise natural rubber, synthetic rubber, natural latex, TEP (thermoplastic elastomer) and the like. In practical use, the disposable tourniquet is usually made in the form of a strip unit or a plurality of connected sections; wherein, for convenient packaging, the disposable tourniquet with a plurality of connected sections is usually packaged in a roll shape.

In the traditional operation process, when medical staff uses the tourniquet packaged in a roll shape, the tourniquet taking strip as a unit is obtained in a manual mode, namely, the tourniquet is manually pulled out by a proper length, then the joint of the tourniquet is pulled, and the tourniquet is pulled forcefully along the nick, so that the tourniquet taking strip as a unit is obtained, but the operation process is labor-consuming, the tourniquet is easy to deform, and in order to solve the problem, technical staff develop a tourniquet winding machine with the functions of automatically cutting and winding. The developed tape-discharging machine mainly comprises a box body structure used for containing a hemostatic tape roll, a driving rotary roller, a driven rotary roller and a rotary roller motor are arranged in the box body structure, the hemostatic tape roll can be unreeled under the combined action of the driving rotary roller and the driven rotary roller, and the tape-discharging machine also comprises a cutting device which is arranged at a discharge port of the box body structure and consists of a cutter, a linear transmission mechanism fixedly connected with the cutter and a motor connected with the linear transmission mechanism. The motor and the linear transmission mechanism can drive the cutter to move longitudinally under the combined action, so that the tourniquet transmitted by the rotary roller is cut off, and the automatic tourniquet cutting operation is finally completed. It follows that the cutting device plays a crucial role in the tape dispenser.

In the above cutting device, the linear transmission mechanism usually adopts a screw transmission mechanism, and the cutter is fixedly connected with the screw transmission mechanism through a bolt and a nut. However, the above-mentioned cutting devices have certain drawbacks: when the motor drives the cutter to move longitudinally through the linear transmission mechanism, the phenomenon of blocking easily occurs, so that the cutting device can not work normally.

SUMMERY OF THE UTILITY MODEL

The utility model provides a cutting device for a tourniquet winder, which is compact and reasonable in structural design and high in working efficiency, and aims to solve the technical problems in the prior art.

The technical scheme adopted by the utility model for solving the technical problems in the prior art is as follows: a cutting device for a tourniquet spitting machine comprises a mounting bracket, wherein a lower tape feeding roller device is connected onto the mounting bracket, an upper tape feeding roller device which is arranged correspondingly to the lower tape feeding roller device is arranged above the lower tape feeding roller device, and the upper tape feeding roller device and the lower tape feeding roller device can clamp and convey a tourniquet under the combined action; a cutter device and a tape guide roller device which are connected with the mounting bracket are respectively arranged on two sides of the lower tape feeding roller device; the eccentric wheel device is connected with the cutter device;

the cutter device comprises a cutter sliding seat connected with the mounting bracket, an upper cutter is connected to the cutter sliding seat through a mounting pin shaft, and a lower cutter in sliding connection with the cutter sliding seat is arranged below the upper cutter; a cutter pressing plate detachably connected with the cutter sliding seat is arranged on the outer side of the cutter, and the cutter pressing plate can press and limit the upper cutter and the lower cutter; the lower part of the lower cutting knife is provided with a strip-shaped hole, and the eccentric wheel device is connected with the strip-shaped hole in a sliding way and drives the lower cutting knife to longitudinally reciprocate.

The utility model has the advantages and positive effects that: the utility model provides a cutting device for a tourniquet winding machine, which can clamp and convey a tourniquet by arranging an upper strap feeding roller device and a lower strap feeding roller device under the combined action, and can cut the tourniquet clamped and conveyed by the two strap feeding roller devices at a single time by arranging a cutter device; by arranging the mounting bracket, the lower tape feeding roller device and the cutter device can be mounted in an integrated manner, so that the lower tape feeding roller device and the cutter device in the cutting device form a unit, and the modularization degree is high; compared with the prior art that the cutter is connected with the lead screw transmission mechanism, the lower cutter in the cutter device is driven to longitudinally move by the eccentric wheel device, the eccentric wheel device is connected with the lower cutter in a sliding mode and matched with the upper cutter, and the lower cutter capable of longitudinally moving can cut off tourniquets transmitted by the two belt feeding roller devices, so that the phenomenon that the lower cutter is blocked in the longitudinal moving process is avoided, the working efficiency of the cutting device is improved, and the failure rate is reduced.

Preferably: the lower belt feeding roller device comprises a lower belt feeding roller which is rotationally connected with the mounting bracket, and a belt feeding roller motor which is used for driving the lower belt feeding roller to rotate is connected on the mounting bracket.

Preferably: the tape guide roller device comprises a guide part fixedly connected with the mounting bracket, a guide roller is rotatably connected onto the guide part, a limiting block is connected onto the guide part, and the limiting block is positioned between the tape feeding roller device and the guide roller.

Preferably: the eccentric wheel device comprises a motor base connected with the mounting bracket, a belt cutting motor is fixedly connected to the motor base, an eccentric wheel is connected to an output shaft of the belt cutting motor in a key mode, an eccentric hole is formed in the end face of the eccentric wheel, a cutter driving lever is inserted into the eccentric hole, and the cutter driving lever penetrates through a strip-shaped hole formed in the lower cutter and is in sliding contact with the strip-shaped hole.

Preferably: the eccentric wheel device also comprises an in-place induction plate fixedly connected to the outer side wall of the eccentric wheel, and an in-place sensor matched with the in-place induction plate for use is fixedly connected to the motor base.

Preferably: two groups of notches which are symmetrically arranged are formed in the inner side surface of the cutter sliding seat, a group of inner backing plates are respectively inserted into the two groups of notches, and the lower cutter is connected with the inner backing plates in a sliding mode.

Preferably: a flip structure is arranged above the mounting bracket, and the upper belt feeding roller device is connected with the flip structure.

Preferably: the upper belt feeding roller device comprises a belt feeding roller seat fixedly connected with the flip structure, and an upper belt feeding roller is rotatably connected to the belt feeding roller seat.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the assembly of the cutter unit and the eccentric wheel unit according to the present invention;

FIG. 3 is a schematic view of an exploded structure of the cutter device in the present invention;

FIG. 4 is a perspective view of the eccentric wheel apparatus according to the present invention;

FIG. 5 is a schematic perspective view of a lower feed roller assembly and a tape guide roller assembly of the present invention;

fig. 6 is a schematic perspective view of the upper feed roller device of the present invention.

In the figure: 1. mounting a bracket; 2. an eccentric wheel device; 2-1, cutting a belt motor; 2-2, a motor base; 2-3, an eccentric wheel; 2-4, a cutter deflector rod; 2-5, an in-place sensor; 2-6, positioning the induction plate; 3. a cutter device; 3-1, a cutter sliding seat; 3-2, cutting down; 3-3, pressing a cutter plate; 3-4, an inner backing plate; 3-5, mounting a pin shaft; 3-6, feeding a cutter; 4. a lower belt feeding roller device; 4-1, a belt feeding roller motor; 4-2, a lower belt feeding roller; 5. a tape guide roller device; 5-1, a guide piece; 5-2, a guide roller; 5-3, a limiting block; 6. a flip structure; 7. an upper belt feeding roller device; 7-1, a belt conveying roller seat; 7-2, and an upper belt feeding roller.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are described in detail as follows:

referring to fig. 1, the cutting device for a tourniquet winder of the present invention includes a mounting bracket 1, in an actual mounting process, the mounting bracket 1 is mounted in an inner cavity of a casing structure of the tourniquet winder through screws, and a cutting device 3 is mounted on the mounting bracket 1.

Referring to fig. 2 and 3, in this embodiment, the cutter device 3 includes a cutter sliding seat 3-1 connected to the mounting bracket 1, in this embodiment, a plurality of sets of protrusions are integrally formed on a side wall of the cutter sliding seat 3-1, and a notch for inserting and matching with the protrusions is formed on the mounting bracket 1. At least two groups of mounting pin shafts 3-5 are inserted at the upper part of the cutter sliding seat 3-1, an upper cutter 3-6 is inserted on the mounting pin shafts 3-5, and the upper cutter 3-6 is L-shaped. A lower cutter 3-2 matched with the upper cutter 3-6 is arranged below the upper cutter 3-6, and the outer side surface of the lower cutter 3-2 is in sliding contact with the inner side surface of the upper cutter 3-6; the lower cutter 3-2 is in sliding contact with two opposite inner side surfaces of the cutter sliding seat 3-1, and through the arrangement, the cutter sliding seat 3-1 can play a role in guiding the lower cutter 3-2. As shown in figure 3, two groups of notches are symmetrically arranged on the inner side surface of the cutter sliding seat 3-1, a group of inner backing plates 3-4 are respectively inserted in the two groups of notches, and the inner side surface of the lower cutter 3-2 is in sliding contact with the inner backing plates 3-4. The inner backing plate 3-4 is made of wear-resistant materials, and the damage caused by long-time friction of the lower cutter 3-2 and the cutter sliding seat 3-1 can be avoided by arranging the inner backing plate 3-4.

A cutter pressing plate 3-3 detachably connected with the cutter sliding seat 3-1 is arranged at the outer side of the cutter, the cutter pressing plate 3-3 can press and limit the upper cutter 3-6 and the lower cutter 3-2, further preventing the upper cutter 3-6 and the lower cutter 3-2 from falling off the cutter sliding seat 3-1, in order to realize the pressing and limiting function of the cutter pressing plate 3-3, the upper part of the cutter pressing plate 3-3 is provided with a through hole for the installation pin shaft 3-5 to pass through, and meanwhile, the upper part of the cutter pressing plate 3-3 is bent and has certain elasticity, further pressing the inner side surface of the lower end part of the upper cutter 3-6 to the outer side surface of the lower cutter 3-2, so that the lower cutter 3-2 and the upper cutter 3-6 can be used in cooperation to cut the tourniquet. The upper part of the cutter pressing plate 3-3 is provided with a notch for the tourniquet to pass through, and the notch corresponds to the cutting stations of the lower cutter 3-2 and the upper cutter 3-6.

As shown in fig. 2, the present embodiment further includes an eccentric wheel device 2 for driving the lower cutter 3-2 to move longitudinally, a bar-shaped hole is formed at the lower portion of the lower cutter 3-2, and the eccentric wheel device 2 is slidably connected to the bar-shaped hole. Further referring to fig. 4, in the present embodiment, the eccentric wheel device 2 includes a motor base 2-2 connected to the mounting bracket 1, a belt cutting motor 2-1 is fixedly connected to the motor base 2-2, an eccentric wheel 2-3 is connected to an output shaft of the belt cutting motor 2-1, and two ends of the eccentric wheel 2-3 are in clearance fit with the motor base 2-2 and the cutter sliding seat 3-1, respectively. An eccentric hole is formed in the outer end face of the eccentric wheel 2-3, a cutter deflector rod 2-4 is inserted into the eccentric hole, and the cutter deflector rod 2-4 penetrates through a strip-shaped hole formed in the lower cutter 3-2 and is in sliding contact with the strip-shaped hole.

The belt cutting motor 2-1 is started to drive the eccentric wheel 2-3 to rotate, the rotating eccentric wheel 2-3 can drive the cutter shift lever 2-4 connected with the belt cutting motor to perform revolution motion around the central line of the eccentric wheel 2-3, and the cutter shift lever 2-4 in revolution motion can drive the lower cutter 3-2 to longitudinally reciprocate due to the fact that the cutter shift lever 2-4 is inserted into a strip-shaped hole formed in the lower portion of the lower cutter 3-2 and is in sliding contact with the lower cutter 3-2, and then the upper cutter 3-6 is matched to perform cutting operation on the tourniquet.

In current tell tape unit, mainly adopt and adopt lead screw drive assembly to drive cutter longitudinal movement, for the purpose that has reached the auto-lock, foretell lead screw drive assembly is trapezoidal lead screw assembly, but trapezoidal lead screw assembly is sliding friction, and long-time sliding friction causes the damage to the surface of lead screw easily, and the damage of lead screw can influence lead screw drive assembly's normal operating, and then makes the cutter that is connected with lead screw drive assembly take place the card pause phenomenon, makes cutting device's fault rate higher.

Compared with the existing driving method adopting the lead screw transmission assembly as the cutting knife, the eccentric wheel device 5-8 in the embodiment can drive the lower cutting knife 3-2 to smoothly carry out longitudinal reciprocating movement, so that the phenomenon of blocking is avoided, and the failure rate is low.

The eccentric wheel device 2 further comprises an in-place induction plate 2-6 fixedly connected to the outer side wall of the eccentric wheel 2-3, an in-place sensor 2-5 matched with the in-place induction plate 2-6 for use is fixedly connected to the motor base 2-2, and the in-place sensor 2-5 adopts a photoelectric sensor. Through the arrangement of the in-place sensor 2-5 and the in-place induction plate 2-6, the cutting motor 2-1 can be braked and controlled, so that the eccentric wheel 2-3 can rotate for 360 degrees under the driving of the cutting motor 2-1, and further the lower cutting knife 3-2 is driven to perform longitudinal reciprocating movement once, and the single cutting operation of the tourniquet is realized.

As shown in fig. 1, the present embodiment further includes a lower tape feeding roller device 4 and a tape guide roller device 5 connected to the mounting bracket 1, wherein the tape guide roller device 5 and the cutter device 3 are respectively disposed at both sides of the lower tape feeding roller device 4.

Can find out through the setting, this embodiment installs cutters 3, lower band feeding roller device 4 and leading band roller device 5 are integrated on installing support 1, installs and the maintenance in later stage in the maintenance process to spitting the tape unit, only needs to install and dismantle installing support 1, can accomplish cutters 3, lower band feeding roller device 4 and leading band roller device 5's installation, and operation process convenient and fast. In addition, compared with the traditional distributed installation, the integrated installation mode in the embodiment enables the space occupied by the core device and the components inside the shell structure of the tape ejecting machine to be smaller, so that the overall volume of the shell structure can be as small as possible, and the overall volume of the tape ejecting machine can be smaller, so that the tape ejecting machine can be conveniently moved to a proper position for use.

Further referring to fig. 1 and fig. 6, the present embodiment further includes an upper tape feeding roller device 7 disposed above the lower tape feeding roller device 4 and disposed corresponding thereto, the upper tape feeding roller device 7 and the lower tape feeding roller device 4 cooperate to clamp and convey the tourniquet, so that the free end of the tourniquet passes through the lower cutter 3-2 and the upper cutter 3-6 after passing through the upper tape feeding roller device 7 and the lower tape feeding roller device 4, the present embodiment further includes a flip structure 6 for mounting the upper tape feeding roller device 7, and the flip structure 6 is mounted on the housing structure of the tape discharging machine and hinged to the housing structure through a hinge shaft.

In the embodiment, the upper tape feeding roller device 7 comprises a tape feeding roller seat 7-1 fixedly connected with the flip structure 6, and an upper tape feeding roller 7-2 is rotatably connected to the tape feeding roller seat 7-1.

Further referring to fig. 5, the lower tape feeding roller device 4 comprises a lower tape feeding roller 4-2 rotatably connected with the mounting bracket 1, when the flip structure 6 is buckled on the shell structure of the tape discharging machine, the upper tape feeding roller 7-2 and the lower tape feeding roller 4-2 are correspondingly arranged up and down, and simultaneously the tourniquet penetrating between the upper tape feeding roller and the lower tape feeding roller is clamped. A belt feeding roller motor 4-1 for driving the lower belt feeding roller 4-2 to rotate is connected on the mounting bracket 1. In the actual working process, the rotating lower tape feeding roller 4-2 is matched with the upper tape feeding roller 7-2, so that the clamped tourniquet can be conveyed towards a cutter in the cutter device 3, and the subsequent tape cutting operation is facilitated.

As shown in fig. 5, the tape guide roller device 5 comprises a guide member 5-1 fixedly connected with the mounting bracket 1, the guide member 5-1 is provided with an arc-shaped guide surface, and a guide roller 5-2 is rotatably connected to the guide surface of the guide member 5-1; the tape guide roller device 5 also comprises a limiting block 5-3 connected on the guide part 5-1, the limiting block 5-3 is positioned between the lower tape feeding roller device 4 and the guide roller 5-2, and a limiting channel for the tourniquet to pass through is arranged between the limiting block 5-3 and the guide part 5-1.

When loading the tourniquet coil, an operator needs to pull the free end of the tourniquet to enable the tourniquet to sequentially pass through the guide roller 5-2 and the limiting channel, then pass through the lower tape feeding roller 4-2 and the lower cutter 3-2, and extend out of the shell structure from a tape outlet arranged on the shell structure, so that the tourniquet coil can be smoothly unreeled to facilitate subsequent tape cutting operation.

The using method comprises the following steps:

the flip structure 6 in the embodiment is installed on the upper portion of the shell structure of the tape discharging machine, then the installation support 1 is installed in the shell structure of the tape discharging machine, in the installation process, it is ensured that the cutter device 3 is located at the tape outlet of the shell structure, the tape guide roller device 5 is close to the installation position of the hemostatic tape roll, and meanwhile, the hemostatic tape roll can be freely rotated and unreeled, it is worth noting that in the installation process, when the flip structure 6 is buckled on the shell structure of the tape discharging machine, the upper tape feeding roller 7-2 and the lower tape feeding roller 4-2 are correspondingly arranged up and down, and meanwhile, the hemostatic tape penetrating between the upper tape feeding roller and the lower tape feeding roller is clamped;

when a tourniquet section is needed, the belt feeding roller motor 4-1 needs to be started, the running belt feeding roller motor 4-1 can drive the lower belt feeding roller 4-2 to rotate, and the tourniquet clamped by the two belt feeding rollers can be conveyed towards the cutter device 3 by a preset length by matching with the upper belt feeding roller 7-2; after the tourniquet with the preset length is transmitted, the belt cutting motor 2-1 needs to be started, under the control of the in-place sensor 2-5, the belt cutting motor 2-1 drives the eccentric wheel 2-3 to rotate 360 degrees, the lower cutting knife 3-2 completes one longitudinal reciprocating movement under the drive of the cutting knife deflector rod 2-4 connected to the eccentric wheel 2-3, and the upper cutting knife 3-6 is matched to perform single cutting on the tourniquet.

Claims

1. The utility model provides a cutting device for tourniquet is told tape unit which characterized by: the tourniquet clamping device comprises a mounting bracket (1), wherein a lower band feeding roller device (4) is connected to the mounting bracket (1), an upper band feeding roller device (7) which is arranged correspondingly to the lower band feeding roller device is arranged above the lower band feeding roller device (4), and the upper band feeding roller device (7) and the lower band feeding roller device (4) can clamp and convey a tourniquet under the combined action; a cutter device (3) and a tape guide roller device (5) which are connected with the mounting bracket (1) are respectively arranged on two sides of the lower tape feeding roller device (4); the eccentric wheel device (2) is connected with the cutter device (3);

the cutter device (3) comprises a cutter sliding seat (3-1) connected with the mounting bracket (1), an upper cutter (3-6) is connected to the cutter sliding seat (3-1) through a mounting pin shaft (3-5), and a lower cutter (3-2) slidably connected with the cutter sliding seat (3-1) is arranged below the upper cutter (3-6); a cutter pressing plate (3-3) detachably connected with the cutter sliding seat (3-1) is arranged on the outer side of the cutter, and the cutter pressing plate (3-3) can press and limit the upper cutter (3-6) and the lower cutter (3-2); a strip-shaped hole is formed in the lower part of the lower cutting knife (3-2), and the eccentric wheel device (2) is connected with the strip-shaped hole in a sliding mode and drives the lower cutting knife (3-2) to longitudinally reciprocate.

2. The cutting device for a tourniquet winder according to claim 1, wherein: the lower belt feeding roller device (4) comprises a lower belt feeding roller (4-2) rotatably connected with the mounting bracket (1), and a belt feeding roller motor (4-1) for driving the lower belt feeding roller (4-2) to rotate is connected to the mounting bracket (1).

3. The cutting device for a tourniquet winder according to claim 1, wherein: the belt guide roller device (5) comprises a guide part (5-1) fixedly connected with the mounting bracket (1), a guide roller (5-2) is rotatably connected onto the guide part (5-1), a limiting block (5-3) is connected onto the guide part (5-1), and the limiting block (5-3) is positioned between the lower belt conveying roller device (4) and the guide roller (5-2).

4. The cutting device for a tourniquet winder according to claim 1, wherein: the eccentric wheel device (2) comprises a motor base (2-2) connected with the mounting bracket (1), a belt cutting motor (2-1) is fixedly connected onto the motor base (2-2), an eccentric wheel (2-3) is connected onto an output shaft of the belt cutting motor (2-1) in a key mode, an eccentric hole is formed in the end face of the eccentric wheel (2-3), a cutter driving lever (2-4) is inserted into the eccentric hole, and the cutter driving lever (2-4) penetrates through a strip-shaped hole formed in the lower cutter (3-2) and is in sliding contact with the strip-shaped hole.

5. The cutting device for a tourniquet winder according to claim 4, wherein: the eccentric wheel device (2) further comprises an in-place induction plate (2-6) fixedly connected to the outer side wall of the eccentric wheel (2-3), and an in-place sensor (2-5) matched with the in-place induction plate (2-6) for use is fixedly connected to the motor base (2-2).

6. The cutting device for a tourniquet winder according to claim 1, wherein: two groups of notches which are symmetrically arranged are arranged on the inner side surface of the cutter sliding seat (3-1), a group of inner backing plates (3-4) are respectively inserted in the two groups of notches, and the lower cutter (3-2) is connected with the inner backing plates (3-4) in a sliding way.

7. The cutting device for a tourniquet winder according to claim 1, wherein: a flip structure (6) is arranged above the mounting bracket (1), and the upper belt feeding roller device (7) is connected with the flip structure (6).

8. The cutting device for a tourniquet winder according to claim 7, wherein: the upper belt feeding roller device (7) comprises a belt feeding roller seat (7-1) fixedly connected with the flip structure (6), and an upper belt feeding roller (7-2) is rotatably connected to the belt feeding roller seat (7-1).