Traction claw heating device of knurled tube traction machine

Abstract

The utility model discloses a heating device for a traction claw of a knurled tube traction machine, which comprises a heating housing fixed on a machine base of the traction machine and positioned at the upstream end of the traction machine, and the traction claw circularly runs on the machine base of the traction machine and penetrates through the heating housing. A plurality of infrared heating lamps which are distributed in a discrete mode are fixedly installed in the heating housing, the infrared heating lamps are arranged along the moving track of the traction claw, and a temperature sensor for detecting the internal temperature is arranged in the heating housing. A cleaning device for cleaning the traction claw is arranged at an inlet and / or an outlet of the heating housing, and the traction claw heating device can heat the traction claw, so that knurling can be better carried out on the surface of a pipe, deformation of the pipe is avoided, and meanwhile the traction claw can be cleaned.

Description

Technical Field

[0001] This utility model relates to the field of plastic pipe technology, and in particular to a heating device for the traction claw of a knurled tube traction machine. Background Technology

[0002] Plastic pipes are a common material on the market, formed by extrusion using an extruder, and can be used in various industries. Currently, most plastic pipes have a smooth surface. When used in the construction and decoration industry, plastic pipes are embedded in walls and then covered with concrete. However, because of the smooth surface of the plastic pipe, the concrete may have difficulty adhering to the surface, potentially leading to detachment and gaps.

[0003] Therefore, a knurling tube traction machine is a device that knurls the surface of a tube during the traction process, thus imprinting patterns on the surface of the plastic tube for better adhesion to concrete. However, current knurling tube traction machines use traction claws to directly knurl the heated surface of the tube, requiring sufficient heating of the tube surface for the knurling to occur. However, excessive heating of the tube can affect its overall roundness and may cause deformation. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a traction claw heating device for a knurling tube traction machine. This traction claw heating device can heat the traction claw, thereby better knurling the surface of the tube, avoiding tube deformation, and also cleaning the traction claw.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a heating device for the traction claw of a knurled tube traction machine, comprising a heating cover fixed on the base of the traction machine and located at the upstream end of the traction machine, wherein the traction claw circulates on the base of the traction machine and passes through the heating cover, wherein a plurality of discretely distributed infrared heating lamps are fixedly installed inside the heating cover, the infrared heating lamps are arranged along the running trajectory of the traction claw, and a temperature sensor for detecting the internal temperature is provided inside the heating cover; a cleaning device for cleaning the traction claw is provided at the inlet and / or outlet of the heating cover.

[0006] As a preferred embodiment, the cleaning device includes a cleaning fixing plate fixed to the heating cover, and a cleaning brush that contacts the traction claw is fixedly installed on the cleaning fixing plate. The width of the cleaning brush is greater than or equal to the width of the traction claw.

[0007] As a preferred embodiment, the heating housing includes a straight segment and an arc segment, wherein the arc segment is a quarter arc segment and covers a quarter of the contour of the traction wheel on which the traction claw circulates.

[0008] As a preferred embodiment, the heating cover includes a cover body, which includes the aforementioned straight segment and arc segment; gantry-type connecting end plates are fixed to both ends of the cover body, and the connecting end plates span the traction claw and are detachably fixed to the base by bolts.

[0009] As a preferred embodiment, the temperature sensor is positioned close to the outlet of the heating housing.

[0010] As a preferred embodiment, the upper end of the heating cover is further provided with a wire harness receiving cavity for convenient wire harness routing, and the wire harness receiving cavity is provided with a wire passing hole for convenient wire harness exit.

[0011] As a preferred embodiment, the contact end between the cleaning brush and the traction claw is configured as a conforming profile end that matches the shape of the traction claw.

[0012] After adopting the above technical solution, the effect of this utility model is as follows: The traction claw heating device includes a heating cover fixed on the base of the traction machine and located at the upstream end of the traction machine. The traction claw circulates on the base of the traction machine and passes through the heating cover. Several discretely distributed infrared heating lamps are fixedly installed inside the heating cover, arranged along the running trajectory of the traction claw. A temperature sensor is installed inside the heating cover to detect the internal temperature. A cleaning device for cleaning the traction claw is installed at the inlet and / or outlet of the heating cover. Therefore, the discretely distributed infrared heating lamps on the heating cover can better control the heating area, achieve segmented heating, and reduce energy consumption. The temperature sensor can monitor the temperature inside the heating cover to ensure temperature controllability, and the cleaning device can clean the circulating traction claw, preventing plastic from sticking to the traction claw during the knurling process and causing unclear knurling patterns.

[0013] Furthermore, since the cleaning device includes a cleaning fixing plate fixed on the heating cover, and a cleaning brush that contacts the traction claw is fixedly installed on the cleaning fixing plate, and the width of the cleaning brush is greater than or equal to the width of the traction claw, the installation of the cleaning fixing plate is very simple, and the cleaning brush can cover the entire traction claw, ensuring a good cleaning effect.

[0014] Furthermore, since the heating cover includes a straight section and an arc section, and the arc section is a quarter arc section that covers a quarter of the contour of the traction wheel on which the traction claw circulates, the quarter arc section can cover a quarter of the contour of the traction wheel. In this way, the heating area is as close as possible to the pipe entry position without hindering the pipe from entering, ensuring that the heated traction claw contacts the pipe as soon as possible, thus guaranteeing the knurling effect.

[0015] Furthermore, since the heating cover includes a cover body, which includes the straight section and the arc section; both ends of the cover body are respectively fixed with gantry-type connecting end plates, which span the traction claw and are detachably fixed to the base by bolts, the entire heating cover can be easily removed to facilitate the replacement of the internal infrared heating lamp.

[0016] Furthermore, the upper end of the heating cover is provided with a wire harness receiving cavity for convenient wire harness routing. The wire harness receiving cavity is provided with a wire passing hole for convenient wire harness exit, which facilitates the connection of the wire harness of each infrared heating lamp to the outside.

[0017] Furthermore, since the contact end between the cleaning brush and the traction claw is designed to match the shape of the traction claw, the cleaning brush has a better cleaning effect on the traction claw. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0020] Figure 2 This is a structural schematic diagram from another angle of an embodiment of the present invention;

[0021] Figure 3 yes Figure 2 The right view;

[0022] Figure 4 yes Figure 3 Sectional view along AA;

[0023] Figure 5 yes Figure 4 Enlarged view of the structure at point I;

[0024] In the attached diagram: 1. Base; 2. Heating cover; 21. Straight section; 22. Arc section; 23. Connecting end plate; 3. Traction claw; 4. Infrared heating lamp; 5. Temperature sensor; 6. Cleaning fixing plate; 7. Cleaning brush; 8. Wire harness receiving cavity; 9. Wire threading hole. Detailed Implementation

[0025] The present invention will be further described in detail below through specific embodiments.

[0026] like Figure 1-5As shown, a heating device for the traction claw 3 of a knurled tube traction machine includes a heating housing 2 fixed on the machine base 1 and located at the upstream end of the traction machine. The traction claw 3 circulates on the machine base 1 and passes through the heating housing 2. A plurality of discretely distributed infrared heating lamps 4 are fixedly installed inside the heating housing 2, arranged along the running trajectory of the traction claw 3. A temperature sensor 5 is installed inside the heating housing 2 to detect the internal temperature. A cleaning device for cleaning the traction claw 3 is provided at the inlet and / or outlet of the heating housing 2. Of course, the aforementioned infrared heating lamps 4 can also be selected from other heating methods as needed.

[0027] In this embodiment, the temperature sensor 5 is located near the outlet of the heating housing 2. The cleaning device includes a cleaning fixing plate 6 fixed on the heating housing 2, and a cleaning brush 7 that contacts the traction claw 3 is fixedly installed on the cleaning fixing plate 6. The width of the cleaning brush 7 is greater than or equal to the width of the traction claw 3. The contact end between the cleaning brush 7 and the traction claw 3 is configured as a conformal profile end that matches the shape of the traction claw 3.

[0028] In this embodiment, the heating cover 2 includes a straight segment 21 and an arc segment 22. The arc segment 22 is a quarter-arc segment 22 and covers a quarter of the contour of the traction wheel of the traction claw 3. The heating cover 2 includes a cover body, which includes the straight segment 21 and the arc segment 22. Gantry-type connecting end plates 23 are fixed to both ends of the cover body. The connecting end plates 23 span the traction claw 3 and are detachably fixed to the base 1 by bolts. The upper end of the heating cover 2 is also provided with a wire harness receiving cavity 8 for convenient wire harness routing. The wire harness receiving cavity 8 is provided with a wire passing hole 9 for convenient wire harness exit.

[0029] During use, the discretely distributed infrared heating lamps 4 on the heating cover 2 can better control the heating area according to the trajectory of the traction claw 3, ensuring that the traction claw 3 contacts the pipe as soon as it is heated, realizing segmented heating and reducing energy consumption. The temperature sensor 5 can monitor the temperature inside the heating cover 2 to ensure that the temperature is controllable. The cleaning device can clean the traction claw 3 that is running in a cycle, avoiding the situation where plastic sticks to the traction claw 3 during the knurling process, causing the knurling pattern to be unclear.

[0030] After a period of time, the infrared heating lamp 4 needs to be replaced in time. The connecting end plate 23 spans the traction claw 3 and is detachably fixed to the base 1 by bolts. By removing the bolts, the entire heating cover 2 can be easily removed, making the operation convenient.

[0031] The pneumatic system, servo motor and other actuators, gear transmission mechanism, and lead screw and nut mechanism mentioned in this embodiment are all current conventional technologies. The 5th edition of the "Mechanical Design Handbook" published in Beijing in April 2008 (5th edition, 28th printing) details the specific structure, principle, and other designs of cylinders, motors, and other transmission mechanisms, which are existing technologies with clear and straightforward structures. The 3rd edition of "Modern Practical Pneumatic Technology" SMC training materials published by Machinery Industry Press on August 1, 2008, details vacuum components, gas circuits, and program control, indicating that the pneumatic structure in this embodiment is also existing technology and clear and straightforward. The book "Motor Drive and Speed ​​Regulation" published by Chemical Industry Press on July 1, 2015, also details motor control and limit switches. Therefore, the circuit and pneumatic connections are clear.

[0032] The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Any modifications and alterations to the technical solution of the present utility model without departing from its design spirit shall fall within the protection scope defined by the claims of the present utility model.

Claims

1. A heating device for the traction claw of a knurled tube traction machine, characterized in that: The device includes a heating housing fixed to the base of the traction machine and located at the upstream end of the traction machine. The traction claw circulates on the base of the traction machine and passes through the heating housing. A plurality of discretely distributed infrared heating lamps are fixedly installed inside the heating housing, and the infrared heating lamps are arranged along the running trajectory of the traction claw. A temperature sensor for detecting the internal temperature is provided inside the heating housing. A cleaning device for cleaning the traction claw is provided at the inlet and / or outlet of the heating housing.

2. The traction claw heating device for a knurled tube traction machine as described in claim 1, characterized in that: The cleaning device includes a cleaning fixing plate fixed on the heating cover, and a cleaning brush that contacts the traction claw is fixedly installed on the cleaning fixing plate. The width of the cleaning brush is greater than or equal to the width of the traction claw.

3. The traction claw heating device for a knurled tube traction machine as described in claim 2, characterized in that: The heating cover includes a straight section and an arc section, the arc section being a quarter arc section and covering a quarter of the contour of the traction wheel of the traction pawl in cyclic operation.

4. The traction claw heating device for a knurled tube traction machine as described in claim 3, characterized in that: The heating cover includes a cover body, which includes the straight section and the arc section; gantry-type connecting end plates are fixed to both ends of the cover body, and the connecting end plates span the traction claw and are detachably fixed to the base by bolts.

5. The traction claw heating device for a knurled tube traction machine as described in claim 4, characterized in that: The temperature sensor is located near the outlet of the heating housing.

6. The traction claw heating device for a knurled tube traction machine as described in claim 5, characterized in that: The upper end of the heating cover is also provided with a wire harness receiving cavity for convenient wire harness routing, and the wire harness receiving cavity is provided with a wire passing hole for convenient wire harness exit.

7. The traction claw heating device for a knurled tube traction machine as described in claim 2, characterized in that: The contact end between the cleaning brush and the traction claw is configured to have a matching profile end that conforms to the shape of the traction claw.

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