CN219171713U

CN219171713U - Hot-melt welding device for belt welding rack

Info

Publication number: CN219171713U
Application number: CN202223599955.2U
Authority: CN
Inventors: 林仕贤
Original assignee: Foshan Aimai Industrial Belt Co ltd
Current assignee: Foshan Aimai Industrial Belt Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-13
Anticipated expiration: 2032-12-29

Abstract

The utility model relates to the technical field of belt processing equipment, in particular to a hot-melt welding device for a belt welding rack, which comprises a rack, two driving rollers, a driving motor, a pressing wheel, a hot air gun, a guide plate, two limiting plates and two positioning nuts, wherein the driving rollers are rotationally connected with the rack and are arranged in parallel at intervals in the front-rear direction, the driving motor is arranged on the rack and is used for driving the two driving rollers to synchronously rotate, the pressing wheel is arranged on the rack and is used for pressing the rack to the rear driving roller, the hot air gun is used for blowing air at the contact position of the rack and the belt, the guide plate is arranged between the rack and the two driving rollers, the upper side of the guide plate is connected with two limiting plates which are arranged in parallel in the left-right direction in a sliding manner, the guide plate is provided with two through grooves which are arranged in parallel at intervals in the front-rear direction, and the limiting plates are provided with two positioning through holes which correspond to the positions of the two through grooves one by one, and positioning bolts which sequentially penetrate the through grooves and the positioning through holes from the lower side of the guide plate are provided with positioning nuts which are in threaded connection. The utility model can automatically drive the belt to rotate and press the rack onto the belt and drive the rack to unreel, and the operation is simpler.

Description

Hot-melt welding device for belt welding rack

Technical Field

The utility model relates to the technical field of belt processing equipment, in particular to a hot-melt welding device for a belt welding rack.

Background

The belt transmission is to use a tensioned belt to be sleeved on the belt pulleys of the two transmission shafts, and the belt transmission transmits the power of one shaft to the other shaft by virtue of the friction force generated when the belt and the belt pulleys are tensioned. When the contact surface of the belt and the shaft is smoother, the belt and the shaft are easy to slip, and the transmission effect is affected. In order to reduce slippage between the belt and the shaft, a rack is generally provided on the belt, and a gear engaged with the rack is provided on the shaft. For toothed belts made of flexible plastics, most of them are manufactured by first separating the belt from the rack and then hot-melt welding the belt and rack together with a hot air gun. In the prior art, when welding a belt and a rack, an operator needs to press the rack to a corresponding welding position on the belt and rotate the belt, so that the operation is troublesome.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide the hot-melt welding device for the belt welding rack, which can automatically drive the belt to rotate and press the rack onto the belt and drive the rack to unreel, and is simpler in operation.

In order to solve the technical problems, the hot-melt welding device for the belt welding rack comprises a rack, two driving rollers, a driving motor, a pressing wheel and a hot air gun, wherein the driving rollers are rotationally connected with the rack, are arranged in parallel at intervals in the front-back direction, the driving motor is arranged on the rack and used for driving the two driving rollers to synchronously rotate, the pressing wheel is arranged on the rack and used for pressing the rack to the rear driving roller, the hot air gun is used for blowing air to the contact position of the rack and a belt obliquely downwards from front to back, a guide plate is arranged between the rack and the two driving rollers, two limiting plates which are arranged in parallel in the left-right direction are connected to the upper side of the guide plate in a sliding manner, two through grooves which are arranged in parallel in the front-back direction are formed in the guide plate, two positioning through holes which correspond to the two through grooves in a one-to-one position are formed in the limiting plates, and positioning bolts which sequentially penetrate through the through grooves and the positioning through holes from the lower side of the guide plate and are in threaded connection with the positioning nuts which are used for propping against the upper side of the limiting plates.

As an improvement of the scheme, the hot-melt welding device for the belt welding rack further comprises a supporting arm, wherein the front part of the supporting arm is rotationally connected with the frame, and the pressing wheel is rotationally connected with the left side of the rear part of the supporting arm.

As an improvement of the scheme, a bearing ring for bearing the hot air gun is arranged on the left side of the middle part of the bearing arm.

As the improvement of above-mentioned scheme, the supporting arm middle part is equipped with the installation through-hole, the bearing circle is fixed with the mounting bolt that passes the installation through-hole, mounting bolt threaded connection has the installation nut that is used for with supporting arm right side offseting.

As an improvement of the above-mentioned scheme, a plurality of the mounting through holes are provided at intervals along the extending direction of the support arm.

As an improvement of the scheme, the frame is rotationally connected with two tensioning rollers which are arranged at intervals up and down above the rear part of the pressing wheel.

As an improvement of the scheme, the pressing wheel is provided with a groove with the width matched with the width of the rack.

As an improvement of the scheme, the positioning nut is a butterfly nut.

The implementation of the utility model has the following beneficial effects:

the hot-melt welding device for the belt welding rack provided by the utility model is characterized in that the belt can be automatically driven to rotate and press the rack onto the belt and drive the rack to unreel, and the hot-melt welding device is matched with the hot-air gun to weld the belt mixed rack, so that the operation is simpler.

Drawings

FIG. 1 is a schematic top view of a hot melt welding apparatus for a belt welded rack in accordance with an embodiment of the present utility model;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is an enlarged view at B in FIG. 1;

FIG. 4 is a schematic view of a limiting plate mounted on a guide plate according to an embodiment of the present utility model;

FIG. 5 is an enlarged view at C in FIG. 4;

FIG. 6 is a layout view of the driving roller, pinch roller, guide plate, limiting plate, heat gun, and support arm in operation according to an embodiment of the present utility model;

fig. 7 is a layout view of mounting through holes on a support arm in an embodiment of the present utility model.

In the figure: 1. a frame; 2. a driving roller; 3. a driving motor; 4. a pinch roller; 5. a heat gun; 6. a guide plate; 7. a limiting plate; 8. a through groove; 9. positioning the through hole; 10. positioning bolts; 11. positioning a nut; 12. a support arm; 13. a bearing ring; 14. mounting through holes; 15. installing a bolt; 16. installing a nut; 17. a tension roller; 18. a groove.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and specific embodiments so as to more clearly understand the technical ideas claimed in the present utility model. It is only stated that the terms of orientation such as up, down, left, right, front, back, inner, outer, etc. used in this document or the imminent present utility model, are used only with reference to the drawings of the present utility model, and are not meant to be limiting in any way.

As shown in fig. 1 to 7, the hot-melt welding device for the belt welding rack in the embodiment of the utility model comprises a frame 1, two driving rollers 2 which are rotationally connected with the frame 1 and are arranged in parallel at intervals in front-rear, a driving motor 3 which is arranged on the frame 1 and is used for driving the two driving rollers 2 to synchronously rotate, a pinch roller 4 which is arranged on the frame 1 and is used for pressing the rack to the rear driving roller 2, and a hot air gun 5 which is used for blowing air to the contact position of the rack and a belt from front to rear obliquely downwards, wherein the driving motor 3 can be a chain transmission or a belt transmission to drive the two driving rollers 2 to synchronously rotate, as shown in fig. 1, the belt welding surface faces outwards away from the roller surfaces of the driving rollers 2 and the left side of the frame 1 is sleeved between the two driving rollers 2; during welding, the rack presses the belt under the action of the pinch roller 4 and presses the belt to the rear driving roller 2, the rack is attached to the belt under the action of the rear driving roller 2 and the pinch roller 4, and the driving roller 2 drives the belt to rotate while the belt drives the pinch roller 4 to rotate so as to unreel the rack; the hot air gun 5 blows hot air to the contact position of the rack and the belt from front to back in an inclined downward manner, and the welding of the belt and the rack is completed along with the running of the belt and the unreeling of the rack; after the belt is welded, the belt leaves from the left side of the frame 1.

The guide plate 6 is arranged between the frame 1 and the two driving rollers 2, two limiting plates 7 which are arranged in parallel are connected left and right on the upper side of the guide plate 6 in a sliding manner, two through grooves 8 which are arranged in a front-back parallel and spaced manner are formed in the guide plate 6, two positioning through holes 9 which correspond to the positions of the two through grooves 8 one by one are formed in the limiting plates 7, and the limiting plates 7 are provided with positioning bolts 10 which sequentially penetrate through the through grooves 8 and the positioning through holes 9 from the lower side of the guide plate 6 and positioning nuts 11 which are in threaded connection with the positioning bolts 10 and are used for propping against the upper sides of the limiting plates 7. In this embodiment, the positioning nut 11 is preferably a butterfly nut, so that an operator can conveniently screw the positioning nut 11 by hand. After the belt is sleeved on the two driving rollers 2 and placed at the corresponding welding positions, the two limiting plates 7 are slid, the right side of the left limiting plate 7 is attached to the left side of the belt, the left side of the right limiting mark is attached to the right side of the belt, then the positioning nut 11 is screwed down, and the limiting plates 7 are fixed with the guide plates 6 through the matching of the positioning bolts 10, the positioning through holes 9, the through grooves 8 and the positioning nut 11, so that the limiting belts swing left and right in the welding process, and the positioning of the belt is realized.

The hot-melt welding device for the belt welding rack is characterized in that the hot-melt welding device for the belt welding rack is mutually matched with the rack 1, the driving roller 2, the driving motor 3, the pressing wheel 4, the hot air gun 5, the guide plate 6, the limiting plate 7, the through groove 8, the positioning through hole 9, the positioning bolt 10 and the positioning nut 11, can automatically drive the belt to rotate, press the rack onto the belt and drive the rack to unreel, and is matched with the hot air gun 5 to weld the belt mixing rack, so that the operation is simpler.

Specifically, the hot-melt welding device for the belt welding rack also preferably comprises a supporting arm 12, wherein the front part of the supporting arm 12 is rotatably connected with the frame 1, and the pressing wheel 4 is rotatably connected with the left side of the rear part of the supporting arm 12. During welding, the pinch roller 4 is pressed to the rear driving roller 2 under the gravity of the supporting arm 12, so that a belt and a rack between the pinch roller 4 and the driving roller 2 are tightly attached; after the welding is finished, the supporting arm 12 is lifted to enable the supporting arm 12 to swing upwards, so that the pressing wheel 4 is far away from the rear driving roller 2, and the belt can be conveniently moved out and the next belt to be welded is conveniently put in.

More specifically, the left side of the middle of the supporting arm 12 is preferably provided with a supporting ring 13 for supporting the heat gun 5, in fact, as shown in fig. 1, the front side of the middle of the heat gun 5 is provided with a notch matched with the inner hole of the supporting ring 13, and as the heat gun 5 inclines downwards from back to front, the notch supporting ring 13 of the front side of the middle of the heat gun 5 is supported by the heat gun 5 under the action of gravity, and the air outlet angle is fixed by the supporting ring 13. Further, the middle part of the supporting arm 12 is preferably provided with a mounting through hole 14, the supporting ring 13 is fixed with a mounting bolt 15 penetrating through the mounting through hole 14, the mounting bolt 15 is in threaded connection with a mounting nut 16 for propping against the right side of the supporting arm 12, as shown in fig. 3, the supporting ring 13 is mounted on the supporting arm 12 through the mutual matching of the mounting through hole 14, the mounting bolt 15 and the mounting nut 16, and the angle of the supporting ring 13 can be adjusted, so that the air outlet angle of the hot air gun 5 is adjusted. As shown in fig. 7, a plurality of the mounting holes 14 are preferably provided at intervals along the extending direction of the support arm 12, and the support ring 13 is mounted to different mounting holes 14 to change the front-rear position of the support ring 13 on the support arm 12, thereby changing the front-rear position of the heat gun 5 on the support arm 12.

In practice, the frame 1 is preferably rotatably connected with two tensioning rollers 17 disposed at an upper and lower interval above the rear of the pinch roller 4, and the rack is wound on the two tensioning rollers 17 and then extends to the pinch roller 4, so that the rack is tensioned.

Specifically, the pressing wheel 4 is preferably provided with a groove 18 with a width matched with the width of the rack, so as to prevent the rack from swinging left and right in the welding process.

The foregoing description is only specific embodiments of the present utility model, and not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present utility model or directly or indirectly applied to other related technical fields are included in the scope of the present utility model.

Claims

1. A belt welds hot melt welding set for rack which characterized in that: including frame, two driving rollers that are connected with the frame rotation and parallel interval around, install be used for driving two driving rollers synchronous rotation's driving motor in the frame, install be used for pressing the pinch roller on the rear driving roller with the rack in the frame and be used for from the past downward hot-blast rifle to the rack with belt contact department bloies, be equipped with the deflector between frame and the two driving rollers, sliding connection has two limiting plates of parallel arrangement about the deflector upside, the deflector is opened has two parallel interval arrangement's logical groove from beginning to end, the limiting plate all is opened has two positioning through-holes with two logical groove position one-to-one, the limiting plate is furnished with from the deflector downside and passes logical groove and positioning through-hole's locating bolt and with positioning bolt threaded connection and be used for with the positioning nut that the limiting plate upside offset in proper order.

2. A hot melt welding apparatus for a belt welded rack as claimed in claim 1, wherein: the device also comprises a bearing arm, the front part of the bearing arm is rotationally connected with the frame, and the pinch roller is rotationally connected with the left side of the rear part of the bearing arm.

3. A hot melt welding apparatus for a belt welded rack as claimed in claim 2, wherein: the left side of the middle part of the bearing arm is provided with a bearing ring for bearing the hot air gun.

4. A hot melt welding apparatus for a belt welded rack as claimed in claim 3, wherein: the bearing arm middle part is equipped with the installation through-hole, the bearing circle is fixed with the mounting bolt that passes the installation through-hole, mounting bolt threaded connection has the installation nut that is used for with the bearing arm right side offset.

5. A hot melt welding apparatus for a belt welded rack as defined in claim 4, wherein: the plurality of mounting through holes are arranged at intervals along the extending direction of the supporting arm.

6. A hot melt welding apparatus for a belt welded rack as claimed in claim 2, wherein: the frame is rotatably connected with two tensioning rollers which are arranged at intervals up and down above the rear part of the pressing wheel.

7. A hot melt welding apparatus for a belt welded rack as claimed in claim 1, wherein: the pinch roller is provided with a groove with the width matched with the width of the rack.

8. A hot melt welding apparatus for a belt welded rack as claimed in claim 1, wherein: the positioning nut is a butterfly nut.