CN114247836A

CN114247836A - Bending equipment

Info

Publication number: CN114247836A
Application number: CN202111367327.9A
Authority: CN
Inventors: 尹绪伟; 陆成聪; 彭亚军; 王刚; 宋康; 孙云; 戴会新; 李菲
Original assignee: Wuhan Greenovo Biotechnology Co ltd
Current assignee: Wuhan Greenovo Biotechnology Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-03-29

Abstract

The invention relates to a bending device which comprises a fixing mechanism and a bending mechanism, wherein the fixing mechanism comprises a first fixing module and a second fixing module, the first fixing module is suitable for fixing one end of a needle tube, the second fixing module is suitable for fixing a bending starting point of the needle tube, the bending mechanism comprises a rolling module, a rotating module and a fixed die, the rolling module comprises a bending pressure head and a driving unit, the bending pressure head is installed on the driving unit, the rolling module is installed on the rotating module, and the rotating module is suitable for driving the rolling module to rotate around the fixed die. The bending equipment is adaptable to long needle tubes and good in bending effect.

Description

Bending equipment

Technical Field

The invention relates to the technical field of medical instrument preparation, in particular to bending equipment.

Background

The cardiac intervention operation is a novel minimally invasive operation for diagnosis and treatment, and compared with a surgical operation, the cardiac intervention operation has small wound and greatly reduces the harm to a patient. In the heart operation, the left atrium is usually entered by puncturing the interatrial septum, the puncture needle is used for puncturing the designated tissue of the human body, the puncture needle is not perpendicular to the interatrial septum after entering the heart through the blood vessel, and the end of the puncture needle needs to be bent to a certain extent to perform the puncture action more easily.

Therefore, a bending apparatus is needed to solve the above technical problems.

Disclosure of Invention

The invention provides bending equipment aiming at the technical problems in the prior art.

The technical scheme for solving the technical problems is as follows: the utility model provides a bending equipment, includes fixed establishment, the mechanism of bending, fixed establishment includes the fixed module of first fixed module, second, first fixed module is suitable for fixedly the one end of needle tubing, the fixed module of second be suitable for with the starting point department of bending of needle tubing is fixed, the mechanism of bending includes roll extrusion module, rotation module, cover half, the roll extrusion module is including bending pressure head, drive unit, the pressure head of bending is installed on the drive unit, the roll extrusion module is installed on the rotation module, rotation module is suitable for the drive the roll extrusion module centers on the cover half is rotatory.

Preferably, in the bending apparatus described above, the rotating module includes a motor, a rotating shaft, and a rotating block, the rotating shaft is mounted on an output shaft of the motor, the rotating block is fixedly connected to the rotating shaft, and the rolling module is mounted on the rotating block.

Preferably, in the bending apparatus described above, the driving unit includes a rolling cylinder adapted to push the bending ram to move.

Preferably, in the bending apparatus, the bending pressure head is in rolling contact with the fixed mold, and the contact surfaces of the bending pressure head and the fixed mold are provided with limiting grooves, which are suitable for preventing the needle tube from deviating during bending.

Preferably, in the above bending apparatus, the first fixing module includes a clamp, a first movable pressing head, and a fixed pressing head, the first movable pressing head is connected to the clamp, the clamp is adapted to push the first movable pressing head to approach one side of the fixed pressing head, and the first movable pressing head and the fixed pressing head are adapted to clamp one end of the needle tube firmly.

Preferably, in the bending apparatus, a groove is formed on a side where the first movable pressing head and the fixed pressing head are close to each other.

Preferably, in the bending apparatus, the first fixing module further includes a moving unit, the moving unit includes a screw rod and a moving platform, a screw rod sleeve is fixed at the bottom of the moving platform, the screw rod is embedded in the screw rod sleeve, and the clamp, the first movable pressing head and the fixed pressing head are all mounted on the moving platform.

Preferably, in the bending apparatus, the rotating module further includes a limiting block, the limiting block is located at one end of the needle tube far away from the first fixing module, and the limiting block is adapted to adjust the bending length of the needle tube.

Preferably, in the bending apparatus described above, the rotating module further includes two stroke blocks, and the two stroke blocks are adapted to position the start point and the end point of the rotating mechanism.

Preferably, in the above bending apparatus, the first fixing module further includes at least one limiting block, the limiting block is located between the fixing pressure head and the second fixing module, and the limiting block is adapted to limit the middle of the needle tube.

The invention has the beneficial effects that: the bending equipment is provided with the screw rod and the moving platform, the clamping position of the non-bending end of the needle tube can be adjusted by adjusting the moving platform, the bending equipment is suitable for bending a longer needle tube, and the length of the needle tube can reach more than 1 meter; the needle tube adopts a flexible fixing mode, and the surface of the needle tube is not damaged; the needle tube is fixed by adopting a non-metal material, and the surface of the needle tube is not damaged; the needle tube is bent in a rolling mode, and the bending force is adjustable; limiting grooves are formed in the contact surfaces of the bending pressure head and the fixed die, so that the plumpness of the bent needle tube is guaranteed; the shape of the fixed die can be adjusted according to the shape of a product, and bending with different radians is carried out. The bending equipment is adaptable to long needle tubes and good in bending effect.

Drawings

FIG. 1 is a top view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a schematic structural view of a bending mechanism;

fig. 4 is a right side view of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the device comprises a fixing mechanism, 11, a first fixing module, 110, a clamp, 111, a first movable pressure head, 112, a screw rod, 113, a fixed pressure head, 114, a limiting block, 115, a moving platform, 12, a second fixing module, 121, a pressing cylinder, 122, a second movable pressure head, 123, a sliding rail, 2, a bending mechanism, 21, a rolling module, 211, a rolling cylinder, 212, a sliding block, 213, a bending pressure head, 22, a rotating module, 221, a rotating block, 222, a rotating shaft, 223, a motor, 224, a limiting block, 225, a stroke block, 23, a fixed die, 3 and a needle tube.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

As shown in fig. 1 to 4, a bending apparatus includes a machine table, a fixing mechanism 1, and a bending mechanism 2, wherein the fixing mechanism 1 and the bending mechanism 2 are both mounted on the machine table. The pressing method of the fixing mechanism 1 is not limited to a manual clamp, pneumatic or electric method, and the like. The fixing mechanism 1 includes a first fixing module 11 and a second fixing module 12, the first fixing module 11 is used for fixing the non-bent end of the needle tube 3, and the second fixing module 12 is used for fixing the bent starting point of the needle tube 3.

The first fixed module 11 comprises a moving unit, a clamp 110, a first movable press head 111 and a fixed press head 113, wherein the moving unit comprises a screw rod 112 and a moving platform 115. The clamp 110, the first movable pressure head 111 and the fixed pressure head 113 are all installed on the movable platform 115, wherein the clamp 110 is hinged to the movable platform 115, the fixed pressure head 113 is fixed on the movable platform 115, the first movable pressure head 111 is connected with the clamp 110, and a first guide rail is installed at the bottom of the first movable pressure head 111. The clamp 110 is used for pushing the first movable ram 111 to move, and when clamping, the first movable ram 111 and the fixed ram 113 are close to one side of the fixed ram 113, so that the first movable ram 111 and the fixed ram 113 can clamp the non-bent end of the needle tube 3 firmly. The first movable pressing head 111 and the fixed pressing head 113 are provided with a groove at the side close to each other to prevent the needle tube 3 from being damaged when being clamped, and in addition, the needle tube 3 can be prevented from being deviated up and down.

The bottom of moving platform 115 is fixed with the lead screw cover, lead screw 112 imbeds in the inside of lead screw cover, the mobile unit is still including setting up the support at lead screw 112 both ends, lead screw 112 is installed on the support, still install the guide bar on the support, guide bar and moving platform 115 sliding connection, the guide bar is parallel to each other with lead screw 112, hand round is installed to lead screw 112 tip, rotate the lead screw through hand round, the lead screw can drive clamping part (clamp 110 on moving platform 115 and the platform during rotation, first activity pressure head 111, fixed pressure head 113) remove, can adjust moving platform 115's position according to needle tubing 3's length, so that needle tubing 3 of different length all can carry out the centre gripping to its non-bending end fixed. The first fixing module 11 further includes two limiting blocks 114, the limiting blocks 114 are located between the fixing ram 113 and the second fixing module 12, and the limiting blocks 114 are used for limiting and fixing the middle portion of the needle tube 3.

The second fixing module 12 includes a pressing cylinder 121 and a second movable pressing head 122, the end of the second movable pressing head 122 is connected to a movable shaft of the pressing cylinder 121, the bottom of the second movable pressing head 122 is slidably connected to a sliding rail 123, and the pressing cylinder 121 and the sliding rail 123 are both fixed on the machine table.

The bending mechanism 2 includes a rolling module 21, a rotating module 22, and a stationary mold 23. The fixed mold 23 is fixed on the machine. The rolling module 21 comprises a bending pressure head 213 and a driving unit, the driving unit is a rolling cylinder 211, a sliding block 212 is installed on a movable shaft of the rolling cylinder 211, a second guide rail is arranged at the bottom of the sliding block 212, and the sliding block 212 is connected with the second guide rail in a sliding mode. The bending ram 213 is attached to an end of the slider 212, and the rolling cylinder 211 pushes the slider 212 and the bending ram 213 to move, and causes the bending ram 213 to abut against the fixed die 23. The bending pressure head 213 is in a roller shape, the bending pressure head 213 is in rolling contact with the fixed die 23, the contact surfaces of the bending pressure head 213 and the fixed die 23 are provided with limit grooves, the needle tube 3 is clamped in the limit grooves in the bending process, and the limit grooves are suitable for preventing the needle tube 3 from deviating during bending. The material of the bending ram 213 is not limited to a non-rigid material such as plastic or rubber, and does not damage the needle tube 3 when pressed. The manner of pressurization of the roll-on modules is not limited to pneumatic, electric, and hydraulic.

The rolling module 21 is mounted on a rotating module 22, and the rotating module 22 is used for driving the rolling module 21 to rotate around the fixed die 23. The rotating module 22 comprises a motor 223, a rotating shaft 222 and a rotating block 221, wherein the rotating shaft 222 is installed on an output shaft of the motor 223, the rotating block 221 is fixedly connected with the rotating shaft 222, and the rolling module 21 is installed on the rotating block 221. The motor 223 is used for driving the rotation shaft 222 and the rotation block 221 to rotate. The rotating module 22 further includes a limiting block 224, the limiting block 224 is located at one end of the needle tube 3 far away from the first fixing module 11, the position of the limiting block 224 is adjustable, the length from the limiting block 224 to the second movable pressing head 122 is the bending length, and the limiting block 224 is used for adjusting the bending length of the needle tube 3. The rotation module 22 also includes two travel blocks 225, the two travel blocks 225 being used to locate the start and end positions of the rotation mechanism 22. The rotation module is not limited to electric and pneumatic modes.

Before the needle tube 3 is bent, the positions of the movable platform 115 and the limit block 224 are adjusted according to the length of the needle tube 3 and the length to be bent, then the first movable pressure head 111 is pushed by pulling the clamp 110 to clamp the non-bent end of the needle tube 3, the middle part of the needle tube 3 is clamped firmly by the limit block 114, and the second movable pressure head 122 is pushed by the pressing cylinder 121 to clamp the bent starting point of the needle tube 3. Then, the rolling cylinder 211 acts to eject the bending pressure head 213, so that the bending pressure head 213 abuts against the fixed die 23 to bend the needle tube 3, the motor 223 rotates to drive the rotating shaft 222 to rotate, and further drive the rotating block 221 to rotate, the rotating block 221 drives the bending pressure head 213 to rotate around the fixed die 23 when rotating, so that the bending pressure head 213 bends the end of the needle tube 3, in the process, the bent part of the needle tube 3 is always bent along the limiting groove of the fixed die 23, the sliding block 212 stops moving when contacting with the stroke block 225, and at this time, the end of the needle tube 3 is bent completely.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. The utility model provides a bending equipment which characterized in that: including fixed establishment (1), the mechanism (2) of bending, fixed establishment (1) includes first fixed module (11), the fixed module (12) of second, first fixed module (11) are suitable for the one end with needle tubing (3) fixed, the fixed module of second (12) are suitable for with the starting point department of bending of needle tubing (3) is fixed, bend mechanism (2) and include roll extrusion module (21), rotation module (22), decide mould (23), roll extrusion module (21) are including bending pressure head (213), drive unit, bend pressure head (213) and install drive unit is last, roll extrusion module (21) are installed on rotation module (22), rotation module (22) are suitable for the drive roll extrusion module (21) center on decide mould (23) are rotatory.

2. The bending apparatus according to claim 1, wherein: the rotating module (22) comprises a motor (223), a rotating shaft (222) and a rotating block (221), the rotating shaft (222) is installed on an output shaft of the motor (223), the rotating block (221) is fixedly connected with the rotating shaft (222), and the rolling module (21) is installed on the rotating block (221).

3. The bending apparatus according to claim 1, wherein: the driving unit comprises a rolling air cylinder (211), and the rolling air cylinder (211) is suitable for pushing the bending press head (213) to move.

4. The bending apparatus according to claim 1, wherein: the bending press head (213) is in rolling contact with the fixed die (23), limiting grooves are formed in contact surfaces of the bending press head (213) and the fixed die (23), and the limiting grooves are suitable for preventing the needle tube (3) from deviating when being bent.

5. The bending apparatus according to claim 1, wherein: the first fixing module (11) comprises a clamp (110), a first movable pressure head (111) and a fixed pressure head (113), the first movable pressure head (111) is connected with the clamp (110), the clamp (110) is suitable for pushing the first movable pressure head (111) to be close to one side of the fixed pressure head (113), and the first movable pressure head (111) and the fixed pressure head (113) are suitable for clamping one end of the needle tube (3).

6. The bending apparatus according to claim 5, wherein: and grooves are formed in the sides, close to each other, of the first movable pressing head (111) and the fixed pressing head (113).

7. The bending apparatus according to claim 5, wherein: the first fixing module (11) further comprises a moving unit, the moving unit comprises a screw rod (112) and a moving platform (115), a screw rod sleeve is fixed at the bottom of the moving platform (115), the screw rod (112) is embedded in the screw rod sleeve, and the clamp (110), the first movable pressing head (111) and the fixed pressing head (113) are all installed on the moving platform (115).

8. The bending apparatus according to claim 1, wherein: the rotating module (22) further comprises a limiting block (224), the limiting block (224) is located at one end, far away from the first fixing module (11), of the needle tube (3), and the limiting block (224) is suitable for adjusting the bending length of the needle tube (3).

9. The bending apparatus according to claim 1, wherein: the rotation module (22) further comprises two travel blocks (225), the two travel blocks (225) being adapted to locate a start and end position of the rotation mechanism (22).

10. The bending apparatus according to claim 1, wherein: the first fixing module (11) further comprises at least one limiting block (114), the limiting block (114) is located between the fixing pressure head (113) and the second fixing module (12), and the limiting block (114) is suitable for limiting the middle of the needle tube (3).