CN111644686B

CN111644686B - Manual device for rapidly cutting flat tube

Info

Publication number: CN111644686B
Application number: CN202010528340.7A
Authority: CN
Inventors: 张鸿; 张文甸; 蔡璐; 王宏庆; 胡晓
Original assignee: Anhui Jianghuai Songz Air Conditioner Co Ltd
Current assignee: Anhui Jianghuai Songz Air Conditioner Co Ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2023-05-16
Anticipated expiration: 2040-06-11
Also published as: CN111644686A

Abstract

The invention relates to a device for manually and rapidly cutting a flat tube, which comprises a handle, a cutting mechanism connected to the handle and an adjusting mechanism connected to the bottom of the cutting mechanism; the cutting mechanism comprises a shell, an operation groove arranged on the shell, a driving handle arranged in the operation groove, a cutting groove arranged at the bottom of the shell, a cutting blade arranged in the cutting groove and a driving mechanism arranged between the driving handle and the cutting blade; the driving mechanism comprises a limit connecting plate connected to the driving handle, a plurality of springs connected to the upper end of the limit connecting plate, a driving rod connected to the lower end of the limit connecting plate, an inner hole arranged at the lower end of the driving rod and a screw rod arranged in the inner hole. The device for manually and rapidly cutting the flat tube can be applied to the cutting procedures of sample pieces and mass produced flat tubes, solves the problem that the production of sample pieces and various products is switched and the production is free of tool cutting, improves the production efficiency, has universality, is simple to operate and reduces the cost of tool manufacturing.

Description

Manual device for rapidly cutting flat tube

Technical Field

The invention belongs to the technical field of liquid cooling flat tube cutting, and particularly relates to a device for manually and rapidly cutting a flat tube.

Background

The flat tube is an important component of the microchannel heat exchanger, and in the production process of the flat tube, the flat tube needs to be cut off according to a specified length for assembling the microchannel heat exchanger. In order to improve production efficiency, the flat tube is usually conveyed and cut off, namely, the flat tube does not stop advancing when being cut, so that the cutter must realize movement in two directions, one direction is the follow-up movement consistent with the advancing direction of the flat tube, and the other direction is the movement perpendicular to the advancing direction of the flat tube, thereby realizing the cutting of the flat tube. The motion in two directions must be realized through two drive transmission mechanisms, the structure becomes complicated, and the flat pipe is cut off the back, and the cutting knife still needs to return to reset in follow-up direction, prepares the follow-up of cutting off next time, but because the cutting knife is installed on the removal knife rest, and the inertia force ratio during reset is great relatively, especially when flat pipe conveying speed is very fast, the cutting knife just hardly realizes quick response, still has very big influence to production efficiency.

And when the sample is manufactured and the products of various types are switched and produced, how to rapidly cut the flat tube is an urgent problem to be solved.

Disclosure of Invention

The invention aims to solve the problems and provide a device for manually and rapidly cutting flat tubes, which has a simple structure and reasonable design.

The invention realizes the above purpose through the following technical scheme:

a device for manually and rapidly cutting flat tubes comprises a handle, a cutting mechanism connected to the handle and an adjusting mechanism connected to the bottom of the cutting mechanism;

the cutting mechanism comprises a shell, an operation groove arranged on the shell, a driving handle arranged in the operation groove, a cutting groove arranged at the bottom of the shell, a cutting blade arranged in the cutting groove and a driving mechanism arranged between the driving handle and the cutting blade;

the driving mechanism comprises a limit connecting plate connected to the driving handle, a plurality of springs connected to the upper end of the limit connecting plate, a driving rod connected to the lower end of the limit connecting plate, an inner hole arranged at the lower end of the driving rod, a screw rod arranged in the inner hole, a worm wheel connected to the screw rod, an internal rotation anti-drop plate connected to the lower end of the screw rod and a worm connected to the axis of the cutting blade, wherein the worm wheel is meshed with the worm.

As a further optimization scheme of the invention, the adjusting mechanism comprises a base, a setting groove arranged at the middle part of the upper end of the base, a plurality of adjusting rods connected to the upper end of the base and a movable cavity arranged in the base, wherein the adjusting rods are symmetrically distributed on two sides of the setting groove.

As a further optimization scheme of the invention, the upper end of the adjusting rod is connected with the shell, the lower end of the adjusting rod is positioned in the moving cavity, and the lower end of the adjusting rod is connected with an anti-falling circular plate.

As a further optimization scheme of the invention, both ends of the worm are movably connected with the inner wall of the shell, and a gap is arranged between the cutting blade and the worm wheel.

As a further optimization scheme of the invention, the inner rotation anti-drop plate is arranged in the lower end wall of the shell, and a lubricating layer is smeared on the outer surface of the inner rotation anti-drop plate.

As a further optimization scheme of the invention, the inner wall of the inner hole is provided with the internal thread, and the coverage area of the internal thread is smaller than that of the external thread on the screw rod.

As a further optimization scheme of the invention, a lubricant is arranged between the screw and the inner hole.

As a further optimization of the invention, the placement groove is located right below the cutting groove.

The invention has the beneficial effects that:

1) According to the invention, a manual cutting mode is adopted to rapidly cut the flat pipe, the flat pipe is arranged between the arranging groove and the cutting groove during cutting, then the cutting mechanism is controlled to move downwards through the handle to rapidly move, after the cutting blade contacts the flat pipe, the driving handle is driven by hands to move upwards, the driving handle drives the limit connecting plate to move upwards and squeeze the spring, the limit connecting plate moves upwards to drive the driving rod to move upwards, the driving screw rotates in the driving rod when the driving rod moves upwards, the worm wheel drives the worm wheel to rotate after the rotation of the screw, the worm wheel drives the cutting blade to rotate, the cutting blade cuts the flat pipe, after the driving handle is loosened, the limiting connecting plate moves downwards by the acting force of the spring and drives the driving rod to move downwards, and meanwhile, the driving force for reversely rotating the cutting blade is provided by the principle, so that the cutting blade reversely rotates, the flat pipe can be cut, and rapid and convenient cutting is realized.

2) The adjusting mechanism can adjust the distance between the cutting groove and the placement groove, is convenient for flat pipes of different types, and has good fixing effect on the flat pipes while being convenient for adjustment;

3) The invention has simple structure, high stability, reasonable design and convenient realization.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the present invention;

fig. 3 is a mating view of the worm gear of the present invention.

In the figure: 1. a handle; 2. a cutting mechanism; 201. an operation groove; 202. a drive handle; 203. cutting a groove; 204. a cutting blade; 205. a worm; 206. a limit connecting plate; 207. a spring; 208. a driving rod; 209. an inner bore; 210. a screw; 211. a worm wheel; 212. an internal rotation anti-drop plate; 3. an adjusting mechanism; 301. a placement groove; 302. an adjusting rod; 303. the chamber is moved.

Detailed Description

The following detailed description of the present application is provided in conjunction with the accompanying drawings, and it is to be understood that the following detailed description is merely illustrative of the application and is not to be construed as limiting the scope of the application, since numerous insubstantial modifications and adaptations of the application will be to those skilled in the art in light of the foregoing disclosure.

Example 1

As mentioned in the background art above, in the flat tube production process, it is necessary to cut the flat tube to a prescribed length for assembly of the microchannel heat exchanger. In order to improve production efficiency, the flat tube is usually conveyed and cut off while being cut, namely, the flat tube does not stop advancing when being cut, so that the cutter must realize movement in two directions, one direction is the following movement consistent with the advancing direction of the flat tube, the other direction is the movement perpendicular to the advancing direction of the flat tube, the cutting of the flat tube is realized, the movement in two directions must be realized through two driving transmission mechanisms, the structure becomes complicated, and after the flat tube is cut off, the cutter must return to reset in the following direction, and the next cutting follow-up is prepared, but because the cutter is arranged on a movable cutter frame, the movable cutter frame is relatively heavy, the inertia force is relatively large during reset, and especially when the conveying speed of the flat tube is fast, the cutter is difficult to realize quick response, the production efficiency is greatly influenced, and the problem that how to quickly cut the flat tube is needed to be solved when a sample piece is manufactured and a plurality of products are switched for production is solved.

As shown in fig. 1-3, a device for manually and rapidly cutting flat tubes comprises a handle 1, a cutting mechanism 2 connected to the handle 1 and an adjusting mechanism 3 connected to the bottom of the cutting mechanism 2;

the cutting mechanism 2 comprises a shell, an operation groove 201 arranged on the shell, a driving handle 202 arranged in the operation groove 201, a cutting groove 203 arranged at the bottom of the shell, a cutting blade 204 arranged in the cutting groove 203 and a driving mechanism between the driving handle 202 and the cutting blade 204; the driving mechanism comprises a limit connecting plate 206 connected to the driving handle 202, a plurality of springs 207 connected to the upper end of the limit connecting plate 206, a driving rod 208 connected to the lower end of the limit connecting plate 206, an inner hole 209 arranged at the lower end of the driving rod 208, a screw rod 210 arranged in the inner hole 209, a worm wheel 211 connected to the screw rod 210, an inner rotation anti-falling plate 212 connected to the lower end of the screw rod 210 and a worm 205 connected to the axis of the cutting blade 204, wherein the worm wheel 211 is meshed with the worm 205; both ends of the worm 205 are movably connected with the inner wall of the shell, and a gap is arranged between the cutting blade 204 and the worm gear 211; the inner rotation anti-drop plate 212 is arranged in the lower end wall of the shell, and a lubricating layer is smeared on the outer surface of the inner rotation anti-drop plate 212; the inner wall of the inner hole 209 is provided with an inner thread, and the coverage area of the inner thread is smaller than that of the outer thread on the screw 210; a lubricant is arranged between the screw 210 and the inner hole 209; the seating groove 301 is located right under the cutting groove 203;

during cutting, the flat tube is placed between the placement groove 301 and the cutting groove 203, then the cutting mechanism 2 is controlled to move downwards and rapidly through the handle 1, after the cutting blade 204 contacts the flat tube, the driving handle 202 is driven by hands to move upwards, the driving handle 202 drives the limiting connecting plate 206 to move upwards and squeeze the spring 207, the limiting connecting plate 206 moves upwards and drives the driving rod 208 to move upwards, the driving screw 210 rotates in the driving rod 208 when the driving rod 208 moves upwards, the worm wheel 211 is driven to rotate after the screw 210 rotates, the worm wheel 211 drives the worm 205 to drive the cutting blade 204 to rotate, the cutting blade 204 cuts the flat tube, after the driving handle 202 is released, the acting force of the spring 207 enables the limiting connecting plate 206 to move downwards and enables the driving rod 208 to move downwards, meanwhile, the screw 210 reversely rotates and provides a driving force for reversely rotating the cutting blade 204, the flat tube can be cut, rapid and convenient cutting is realized, the flat tube cutting tool has the advantages of small volume, convenient operation, high reaction speed, suitability for the flat tube cutting process of sample piece and mass production, multiple product switching, no production efficiency, simplicity in manufacturing, tool facility production, and low production cost, and low production facility cost

The adjusting mechanism 3 comprises a base, a setting groove 301 arranged in the middle of the upper end of the base, a plurality of adjusting rods 302 connected to the upper end of the base and a movable cavity 303 arranged in the base, wherein the adjusting rods 302 are symmetrically distributed on two sides of the setting groove 301; the upper end and the shell of regulation pole 302 are connected, and the lower extreme of regulation pole 302 is located and removes the cavity 303, and the lower extreme of regulation pole 302 is connected with the anti-disengaging plectane, and adjustment mechanism 3 can adjust the distance between cutting groove 203 and the mounting groove 301, and the convenience is applicable to the flat pipe of different models, and the fixed effect to the flat pipe is also better when convenient the regulation.

The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.

Claims

1. A device of manual fast cutting flat pipe which characterized in that: comprises a handle (1), a cutting mechanism (2) connected to the handle (1) and an adjusting mechanism (3) connected to the bottom of the cutting mechanism (2);

the cutting mechanism (2) comprises a shell, an operation groove (201) arranged on the shell, a driving handle (202) arranged in the operation groove (201), a cutting groove (203) arranged at the bottom of the shell, a cutting blade (204) arranged in the cutting groove (203) and a driving mechanism between the driving handle (202) and the cutting blade (204);

the driving mechanism comprises a limit connecting plate (206) connected to a driving handle (202), a plurality of springs (207) connected to the upper end of the limit connecting plate (206), a driving rod (208) connected to the lower end of the limit connecting plate (206), an inner hole (209) arranged at the lower end of the driving rod (208), a screw rod (210) arranged in the inner hole (209), a worm wheel (211) connected to the screw rod (210), an inner rotation anti-falling plate (212) connected to the lower end of the screw rod (210) and a worm (205) connected to the axis of the cutting blade (204), wherein the worm wheel (211) is meshed with the worm (205).

2. A device for manually and rapidly cutting flat tubes according to claim 1, wherein: the adjusting mechanism (3) comprises a base, a placement groove (301) arranged in the middle of the upper end of the base, a plurality of adjusting rods (302) connected to the upper end of the base and a movable cavity (303) arranged in the base, wherein the adjusting rods (302) are symmetrically distributed on two sides of the placement groove (301).

3. A device for manually and rapidly cutting flat tubes according to claim 2, wherein: the upper end of the adjusting rod (302) is connected with the shell, the lower end of the adjusting rod (302) is positioned in the movable chamber (303), and the lower end of the adjusting rod (302) is connected with an anti-falling circular plate.

4. A device for manually and rapidly cutting flat tubes according to claim 1, wherein: both ends of the worm (205) are movably connected with the inner wall of the shell, and a gap is arranged between the cutting blade (204) and the worm wheel (211).

5. A device for manually and rapidly cutting flat tubes according to claim 1, wherein: the inner rotation anti-falling plate (212) is arranged in the lower end wall of the shell, and a lubricating layer is smeared on the outer surface of the inner rotation anti-falling plate (212).

6. A device for manually and rapidly cutting flat tubes according to claim 1, wherein: the inner wall of the inner hole (209) is provided with an inner thread, and the coverage area of the inner thread is smaller than that of the outer thread on the screw (210).

7. A device for manually and rapidly cutting flat tubes according to claim 1, wherein: a lubricant is arranged between the screw (210) and the inner hole (209).

8. A device for manually and rapidly cutting flat tubes according to claim 2, wherein: the placement groove (301) is located directly below the cutting groove (203).