CN113787726A - Conduit heat-sealing machine - Google Patents
Conduit heat-sealing machine Download PDFInfo
- Publication number
- CN113787726A CN113787726A CN202111365357.6A CN202111365357A CN113787726A CN 113787726 A CN113787726 A CN 113787726A CN 202111365357 A CN202111365357 A CN 202111365357A CN 113787726 A CN113787726 A CN 113787726A
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- China
- Prior art keywords
- heat
- heat sealing
- unit
- heating
- pipe
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7841—Holding or clamping means for handling purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention belongs to the technical field of conduit forming, and particularly relates to a conduit heat sealing machine which comprises a cabinet body, a heat sealing unit, a moving unit and a control unit, wherein the heat sealing unit comprises a plurality of groups of heat sealing assemblies which are arranged side by side, each group of heat sealing assemblies comprises a heating frame and a heating pipe, the heating frame is of a transverse U-shaped structure and comprises two transverse plates and a vertical plate, a through hole for a conduit to pass through is formed in the center of the heating pipe along the axial direction, the heating pipe is arranged between two ends, far away from the vertical plate, of the two transverse plates of the heating frame, holes for the conduit to pass through are formed in the heating frame corresponding to the through holes of the heating pipe up and down, the heating frame is arranged on the moving unit through the vertical plate, the heat sealing assemblies move up and down on the moving unit, the control unit is connected with the heat sealing unit and the moving unit, and the heat sealing unit, the moving unit and the control unit are connected with the cabinet body. The invention can heat the materials of different sections of the guide pipe together in a heat radiation mode, so that the guide pipe is really fused into a whole.
Description
Technical Field
The invention belongs to the technical field of catheter forming, and particularly relates to a catheter heat-sealing machine.
Background
According to the application of the catheter, a plurality of catheters with variable diameters and variable degrees of hardness can be manufactured, when the catheters with variable hardness and variable diameters are manufactured, PEBAX pipes with different hardness or different diameters are required to be butted end to end, then two sections of PEBAX pipes are melted through hot melting and then are infiltrated into a braided layer of the catheter, and therefore the butting of the two catheters is realized. However, there are sometimes a plurality of positions of variable diameter or variable hardness for one pipe, and it is not possible to efficiently heat-seal such pipes with existing equipment.
Disclosure of Invention
In order to solve the technical problems, the invention provides a conduit heat sealing machine which can be used for carrying out heat sealing connection on a conduit rapidly, efficiently and intelligently.
The invention is realized in such a way, and provides a conduit heat sealing machine which comprises a cabinet body, a heat sealing unit, a movement unit and a control unit, wherein the heat sealing unit comprises a plurality of groups of heat sealing assemblies arranged in parallel, each group of heat sealing assemblies comprises a heating frame and a heating pipe, the heating frame is of a transverse U-shaped structure and comprises two transverse plates and a vertical plate, a through hole for a conduit to pass through is formed in the center of the heating pipe along the axial direction, the heating pipe is arranged between two ends, far away from the vertical plate, of the two transverse plates of the heating frame, holes for the conduit to pass through are formed in the heating frame corresponding to the through hole of the heating pipe up and down, the heating frame is arranged on the movement unit through the vertical plate, the heat sealing assemblies move up and down on the movement unit, the control unit is connected with the heat sealing unit and the movement unit, and the heat sealing unit, the movement unit and the control unit are all connected with the cabinet body.
Preferably, the heating pipe comprises a heating pipe body, a copper cylinder and a temperature sensor, the copper cylinder is arranged in the heating pipe body, a through hole for the guide pipe to pass through is formed in the axial direction of the copper cylinder, the temperature sensor is arranged on the copper cylinder, and the temperature sensor is connected with the control unit.
Further preferably, the heating pipe is connected to the heating frame through two heating pillars; the guide blocks are arranged at the positions of the holes for the guide pipes to pass through, which are arranged at the two ends of the heating frame, the holes for the guide pipes to pass through are arranged on the guide blocks, and the diameter of the holes on the guide blocks is smaller than that of the holes for the guide pipes to pass through on the heating frame and the heating pipe; the heating frame is connected to the heat seal support, and the heat seal support is connected to the moving unit.
Preferably, the heat seal assembly further comprises a heat seal cover which is of a transverse U-shaped structure and comprises a long cover plate and two identical short cover plates, the long cover plate covers one side of the heating pipes of the heat seal assemblies, the two short cover plates cover the heat seal assemblies at two ends, and a heat seal cover frame is arranged to connect the heat seal cover to the heat seal support.
Preferably, the heat seal unit further comprises a clamping assembly, the clamping assembly is fixedly arranged at the upper section of the moving unit and comprises a clamping frame, clamping cylinders and clamping claws, the number of the clamping cylinders is the same as that of the heat seal assemblies, the clamping cylinders are arranged on the clamping frame, the clamping claws are arranged at the lower ends of the clamping cylinders, the clamping assembly is arranged above the heat seal assemblies, and the positions of each clamping cylinder and each group of heat seal assemblies are opposite.
Preferably, the motion unit comprises a motor, a speed reducer, a lead screw and a linear limiting rod, the motor is connected to the lower end of the linear limiting rod through the speed reducer, the speed reducer is in transmission connection with the lower end of the lead screw and drives the lead screw to rotate, the upper end of the lead screw is in rotation connection with the upper end of the linear limiting rod, a linear sliding block is arranged on the lead screw, and the heat seal assembly is connected to the linear sliding block.
Further preferably, the upper section and the lower section of the linear limiting rod are respectively provided with a limiting sensor.
Preferably, the control unit comprises a control box, an electric box, a touch assembly and a pneumatic claw switch assembly, the touch assembly comprises a touch screen, the touch screen is connected to the cabinet body through a touch support, the pneumatic claw switch assembly comprises a pneumatic claw switch plate and a plurality of pneumatic claw switches, the pneumatic claw switches are arranged on the pneumatic claw switch plate, the number of the pneumatic claw switches is equal to that of the heat sealing assemblies, the touch screen, the pneumatic claw switches and the electric box are all connected with the control box, and the control box is connected with the heat sealing assemblies and the movement unit.
Further preferably, a protection chain is arranged on the outer side of the control box, and a line between the control box and the heat sealing unit and a line between the control box and the moving unit are arranged in the protection chain.
Further preferably, a cabinet door is arranged on the cabinet body, a cabinet door sensor is arranged on the cabinet body on the inner side of the cabinet door, and the cabinet door sensor is contacted with the cabinet door sensor when the cabinet door is closed.
Compared with the prior art, the invention has the advantages that:
according to the difference of the melting points of materials forming the pipe sections with different diameters and different hardness of the pipe, the sensitivity and thermoplasticity of the materials to the temperature, the materials of the different sections of the pipe are heated together in a heat radiation mode, so that the pipe is really fused into a whole, and the strength of the whole pipe is improved;
a closed-loop control system is adopted, so that the temperature and the speed are accurately and stably controlled;
the treatment efficiency to the pipe is high, especially exist to the position that has a plurality of reducing or variation in hardness on a pipe, can once handle and accomplish, save time, space and human cost.
Drawings
FIG. 1 is an overall structure of a heat sealing machine for pipes according to the present invention;
FIG. 2 is an overall view of the heat seal assembly;
FIG. 3 is an exploded view of a heat seal assembly;
FIG. 4 is a view showing the structure of a heating pipe;
FIG. 5 is a view of the clamping assembly;
FIG. 6 is a view showing a structure of a motion unit;
fig. 7 is a cabinet structure view.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, 2 and 3, the invention provides a conduit heat sealing machine, which comprises a cabinet body 1, a heat sealing unit, a movement unit and a control unit, wherein the heat sealing unit comprises a plurality of groups of heat sealing assemblies arranged in parallel, each group of heat sealing assemblies comprises a heating frame 2 and a heating pipe 3, the heating frame 2 is of a transverse U-shaped structure and comprises two transverse plates and a vertical plate, a through hole for a conduit to pass through is formed in the center of the heating pipe 3 along the axial direction, the heating pipe 3 is arranged between two ends, far away from the vertical plates, of the two transverse plates of the heating frame 2, holes for the conduit to pass through are formed in the heating frame 2 corresponding to the through hole of the heating pipe 3 up and down, the heating frame 2 is arranged on the movement unit through the vertical plate, the heat sealing assemblies move up and down on the movement unit, the control unit is connected with the heat sealing unit and the movement unit, and the heat sealing unit, the movement unit and the control unit are connected with the cabinet body 1.
The catheter body is generally formed by three layers, wherein the inner layer and the outer layer are made of plastic materials, the middle layer is a braided layer, a layer of heat-shrinkable tube is arranged outside the catheter body during catheter forming, and the heat-shrinkable tube is peeled off after the catheter forming process is completed. The catheter treated by the heat sealing machine provided by the invention is the catheter with the heat shrinkable tube covered on the surface.
When the heat sealing machine for the guide pipe is used for heat sealing of the guide pipe, one end of the guide pipe penetrates through a hole for the guide pipe to pass through from the lower end of the heating frame 2 and then penetrates through the heating pipe 3, then the hole for the guide pipe to pass through from the upper end of the heating frame 2 penetrates through the upper end of the guide pipe, the upper end of the guide pipe is fixed on the moving unit, the heating temperature of the heating pipe 3 is set through the control unit, the moving unit is set to drive the heat sealing assembly to move up and down, and the like, so that the device can be started, the guide pipe is heated through the heating pipe 3, the joint position of the guide pipe is subjected to heat melting, under the extrusion of the heat-shrinkable pipe, the outer layers of the inner layers of the end parts of the guide pipe at two ends of the joint position are mutually fused in the weaving layer, the guide pipe is really combined together, after a part of the heat sealing is completed, the moving unit drives the heat sealing assembly to move downwards, and heat sealing is continuously performed on the guide pipe until the whole guide pipe is completed.
As a specific structure of the heating pipe 3, referring to fig. 4, the heating pipe 3 includes a heating pipe body 301, a copper cylinder 302 and a temperature sensor 303, the copper cylinder 302 is disposed in the heating pipe body 301, a through hole for a conduit to pass through is disposed in an axial direction of the copper cylinder 302, the temperature sensor 303 is disposed on the copper cylinder 302, and the temperature sensor 303 is connected to the control unit.
When heating, the heating tube body 301 is heated electrically, then heat is conducted to the copper cylinder 302, and heat sealing is carried out on the conduit through the heat radiation effect of the copper cylinder 302. The temperature of the heating pipe 3 is collected by the temperature sensor 303 and transmitted to the control unit, and the control unit controls the temperature of the heating pipe 3.
For convenience of installation and optimized arrangement, as an improvement of the technical scheme, the heating pipe 3 is connected to the heating frame 2 through two heating pillars 4; the positions of the two ends of the heating frame 2, which are provided with holes for the guide pipes to pass through, are provided with guide blocks 5, the guide blocks 5 are provided with holes for the guide pipes to pass through, and the diameters of the holes in the guide blocks 5 are smaller than the diameters of the holes for the guide pipes to pass through in the heating frame 2 and the heating pipe 3; the heating device is provided with a heat seal support 6, the heating support 2 is connected to the heat seal support 6, and the heat seal support 6 is connected to the moving unit.
During insertion of the guide tube into the heating tube 3, the guide tube is positioned by the small hole of the guide block 5 so that it can be correctly inserted into the hole in the middle of the heating tube 3.
In order to form protection and prevent people from being injured in the operation process, as the improvement of the technical scheme, the heat seal assembly further comprises a heat seal cover 7, the heat seal cover 7 is of a transverse U-shaped structure and comprises a long cover plate and two identical short cover plates, the long cover plate covers a plurality of groups of heat seal assemblies, one side of the heating pipe 3 covers one side of the heating pipe, the two short cover plates cover the heat seal assemblies at two ends of the heating pipe, and a heat seal cover frame 8 is arranged to connect the heat seal cover 7 to the heat seal support 6.
In order to fix the position of a conduit in the heat sealing process, as an improvement of the technical scheme, the heat sealing unit further comprises a clamping assembly, the clamping assembly is fixedly arranged at the upper section of the moving unit and comprises a clamping frame 9, clamping cylinders 10 and clamping claws 11, the number of the clamping cylinders 10 is the same as that of the heat sealing assemblies, the clamping cylinders 10 are arranged on the clamping frame 9, the clamping claws 11 are arranged at the lower ends of the clamping cylinders 10, the clamping assembly is arranged above the heat sealing assembly, and the position of each clamping cylinder 10 is opposite to that of each heat sealing assembly.
When the pipe extends out of the heating pipe 3 to the position of the clamping claw 11, the clamping cylinder 10 controls the clamping claw 11 to grasp the upper end of the pipe, so as to realize fixation. Preferably three clamping jaws 11 are provided. The clamping cylinder 10 is connected to a control unit.
As a specific implementation manner of the motion unit, the motion unit includes a motor 12, a reducer 13, a lead screw 14 and a linear limit rod 15, the motor 12 is connected to the lower end of the linear limit rod 15 through the reducer 13, the reducer 13 is in transmission connection with the lower end of the lead screw 14 to drive the lead screw 14 to rotate, the upper end of the lead screw 14 is in rotational connection with the upper end of the linear limit rod 15, a (threaded connection) linear slider 16 is arranged on the lead screw 14, and the heat seal assembly is connected to the linear slider 16.
In the working process of the moving unit, the motor 12 and the reducer 13 drive the lead screw 14 to rotate, and as the upper end and the lower end of the lead screw 14 are both connected to the linear limiting rod 15 and the linear sliding block 16 is in threaded connection with the lead screw 14, the linear sliding block 16 moves up and down along with the rotation of the lead screw 14, so that the heat sealing assembly arranged on the linear sliding block 16 is driven to move up and down.
In order to control the up-and-down movement of the heat seal assembly by the control unit, as an improvement of the technical scheme, a limit sensor 17 is respectively arranged at the upper section and the lower section of the linear limit rod 15. When the heat seal assembly moves to the upper end or the lower end limit position, the two limit sensors 17 transmit signals to the control unit, and the control unit controls other components to continuously work correspondingly.
Specifically, in order to form specific control on each working unit, the control unit comprises a control box 18, an electric box 19, a touch assembly and a pneumatic claw switch assembly, the touch assembly comprises a touch screen 20, the touch screen 20 is connected to the cabinet body 1 through a touch support 21, the pneumatic claw switch assembly comprises a pneumatic claw switch plate 22 and a plurality of pneumatic claw switches 23, the pneumatic claw switches 23 are arranged on the pneumatic claw switch plate 22, the number of the pneumatic claw switches 23 is the same as that of the heat sealing assemblies, the touch screen 20, the pneumatic claw switches 23 and the electric box 19 are all connected with the control box 18, and the control box 18 is connected with the heat sealing assemblies and the movement unit.
A singlechip is arranged in the control box 18 to carry out overall control on the device, the electric box 19 supplies power for each power-using component, an operator sets parameters on the touch screen 20, the set parameters are transmitted to the control box 18, and the control box 18 controls other components according to the set parameters; each pneumatic claw switch 23 correspondingly controls the action of one clamping cylinder 10, and the clamping cylinder 10 is determined to be actuated by the pneumatic claw switch 23 according to the number of pipes to be heat-sealed.
In order to prevent the circuit from being exposed and damaged or wound to influence the normal work of each part, as an improvement of the technical scheme, a protection chain 24 is arranged on the outer side of the control box 18, and the circuit between the control box 18 and the heat sealing unit and the moving unit is arranged in the protection chain 24.
For the security of work, set up holistic operating means in the cabinet body 1, after the cabinet body 1 is closed, each part begins to start, consequently as technical scheme's improvement be equipped with cabinet door 25 on the cabinet body 1, be equipped with cabinet door sensor 26 on the cabinet body 1 of cabinet door 25 inboard, contact with cabinet door sensor 26 when cabinet door 25 closes.
Claims (10)
1. A conduit heat sealing machine is characterized by comprising a cabinet body (1), a heat sealing unit, a movement unit and a control unit, wherein the heat sealing unit comprises a plurality of groups of heat sealing assemblies arranged side by side, each group of heat sealing assemblies comprises a heating frame (2) and a heating pipe (3), the heating frame (2) is of a transverse U-shaped structure and comprises two transverse plates and a vertical plate, a through hole for a conduit to pass through is formed in the center of the heating pipe (3) along the axial direction, the heating pipe (3) is arranged between two ends, far away from the vertical plate, of the two transverse plates of the heating frame (2), and on heating frame (2) that the through-hole of heating pipe (3) corresponds from top to bottom, all be equipped with the hole that supplies the pipe to pass through, heating frame (2) pass through the riser setting on the motion unit, the heat seal subassembly is up-and-down motion on the motion unit, the control unit is connected with heat seal unit and motion unit, heat seal unit, motion unit and control unit all are connected with the cabinet body (1).
2. The conduit heat-sealing machine according to claim 1, characterized in that the heating pipe (3) comprises a heating pipe body (301), a copper cylinder (302) and a temperature sensor (303), the copper cylinder (302) is arranged in the heating pipe body (301), a through hole for the conduit to pass through is arranged in the axial direction of the copper cylinder (302), the temperature sensor (303) is arranged on the copper cylinder (302), and the temperature sensor (303) is connected with the control unit.
3. A pipe heat-sealing machine as claimed in claim 1, characterised in that said heating pipe (3) is connected to said heating frame (2) by means of two heating struts (4); guide blocks (5) are arranged at the positions of the two ends of the heating frame (2) where holes for the guide pipes to pass through are formed, the guide blocks (5) are provided with holes for the guide pipes to pass through, and the diameters of the holes in the guide blocks (5) are smaller than the diameters of the holes for the guide pipes to pass through in the heating frame (2) and the heating pipe (3); the heating device is provided with a heat seal support (6), the heating frame (2) is connected to the heat seal support (6), and the heat seal support (6) is connected to the moving unit.
4. A pipe heat sealing machine according to claim 3, characterized in that said heat sealing unit further comprises a heat sealing cover (7), the heat sealing cover (7) is of a horizontal U-shaped structure comprising a long cover plate and two identical short cover plates, the long cover plate covers the side of the heat sealing assembly where the heating pipe (3) is arranged, the two short cover plates cover the heat sealing assembly at both ends, and a heat sealing cover frame (8) is arranged to connect the heat sealing cover (7) to the heat sealing support (6).
5. The pipe heat sealing machine according to claim 1, characterized in that the heat sealing unit further comprises a clamping assembly fixedly arranged at the upper section of the moving unit, the clamping assembly comprises a clamping frame (9), clamping cylinders (10) and clamping claws (11), the number of the clamping cylinders (10) is the same as that of the heat sealing assemblies, the clamping cylinders (10) are arranged on the clamping frame (9), the clamping claws (11) are arranged at the lower ends of the clamping cylinders (10), the clamping assembly is arranged above the heat sealing assemblies, and each clamping cylinder (10) is opposite to the position of each group of heat sealing assemblies.
6. The pipe heat-sealing machine according to claim 1, wherein the moving unit comprises a motor (12), a reducer (13), a lead screw (14) and a linear limiting rod (15), the motor (12) is connected to the lower end of the linear limiting rod (15) through the reducer (13), the reducer (13) is in transmission connection with the lower end of the lead screw (14) to drive the lead screw (14) to rotate, the upper end of the lead screw (14) is in rotation connection with the upper end of the linear limiting rod (15), a linear slider (16) is arranged on the lead screw (14), and the heat-sealing assembly is connected to the linear slider (16).
7. Pipe heat-sealing machine according to claim 6, characterized in that one limit sensor (17) is provided at each of the upper and lower sections of said linear limit rod (15).
8. The duct heat-sealing machine according to claim 5, characterized in that the control unit comprises a control box (18), an electric box (19), a touch component and an air claw switch component, the touch component comprises a touch screen (20), the touch screen (20) is connected to the cabinet body (1) through a touch support (21), the air claw switch component comprises an air claw switch board (22) and a plurality of air claw switches (23), the air claw switches (23) are arranged on the air claw switch board (22), the number of the air claw switches (23) is the same as that of the heat-sealing components, the touch screen (20), the air claw switches (23) and the electric box (19) are all connected with the control box (18), and the control box (18) is connected with the heat-sealing components and the moving unit.
9. Pipe sealer according to claim 8, wherein a protection chain (24) is provided on the outside of said control box (18), and the wiring between control box (18) and said sealing unit and said moving unit is provided in protection chain (24).
10. A duct heat-sealing machine according to claim 1, characterized in that a cabinet door (25) is provided on the cabinet body (1), and a cabinet door sensor (26) is provided on the cabinet body (1) inside the cabinet door (25), which contacts the cabinet door sensor (26) when the cabinet door (25) is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111365357.6A CN113787726A (en) | 2021-11-18 | 2021-11-18 | Conduit heat-sealing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111365357.6A CN113787726A (en) | 2021-11-18 | 2021-11-18 | Conduit heat-sealing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113787726A true CN113787726A (en) | 2021-12-14 |
Family
ID=78877346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111365357.6A Pending CN113787726A (en) | 2021-11-18 | 2021-11-18 | Conduit heat-sealing machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN113787726A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1109154A (en) * | 1993-09-24 | 1995-09-27 | 旭有机材工业株式会社 | Method and apparatus for connecting resin pipes |
| CN101644366A (en) * | 2009-06-25 | 2010-02-10 | 王宝根 | Method for smelting inner layer plastic and outer layer plastic of spring extension tube |
| CN203697475U (en) * | 2014-02-18 | 2014-07-09 | 马燕红 | Indoor central heating plastic pipe guide insertion thermal sealing machine |
| CN204172426U (en) * | 2014-11-03 | 2015-02-25 | 王高杰 | The cold and hot charge-coupled installation of a kind of automatic liquid |
| CN111844768A (en) * | 2020-08-21 | 2020-10-30 | 宁波恒元精工管阀科技有限公司 | Anticorrosive processing equipment of steel-plastic conversion pipe |
| CN213704578U (en) * | 2020-08-21 | 2021-07-16 | 宁波恒元精工管阀科技有限公司 | Thermal shrinking machine for anti-corrosion sleeve |
-
2021
- 2021-11-18 CN CN202111365357.6A patent/CN113787726A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1109154A (en) * | 1993-09-24 | 1995-09-27 | 旭有机材工业株式会社 | Method and apparatus for connecting resin pipes |
| CN101644366A (en) * | 2009-06-25 | 2010-02-10 | 王宝根 | Method for smelting inner layer plastic and outer layer plastic of spring extension tube |
| CN203697475U (en) * | 2014-02-18 | 2014-07-09 | 马燕红 | Indoor central heating plastic pipe guide insertion thermal sealing machine |
| CN204172426U (en) * | 2014-11-03 | 2015-02-25 | 王高杰 | The cold and hot charge-coupled installation of a kind of automatic liquid |
| CN111844768A (en) * | 2020-08-21 | 2020-10-30 | 宁波恒元精工管阀科技有限公司 | Anticorrosive processing equipment of steel-plastic conversion pipe |
| CN213704578U (en) * | 2020-08-21 | 2021-07-16 | 宁波恒元精工管阀科技有限公司 | Thermal shrinking machine for anti-corrosion sleeve |
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Application publication date: 20211214 |
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| RJ01 | Rejection of invention patent application after publication |