CN219929083U - Feeding mechanism for thermal bonding corrugating machine - Google Patents

Abstract

The utility model relates to a feeding mechanism for a thermal bonding corrugating machine, which comprises a first feeding device and a second feeding device, and further comprises a rotating disc, wherein the first feeding device and the second feeding device are oppositely arranged on the rotating disc respectively, the rotating disc rotates under the action of external force, and the positions of the first feeding device and the second feeding device are interchanged, so that the first feeding device and the second feeding device work alternately through the rotation of the rotating disc. The two feeding devices work alternately through the rotation of the rotating disc, the structure that the two feeding devices move back and forth is canceled, and then the area of a factory building occupied by the feeding devices is effectively reduced. The rotating disc is arranged on the base in a rotating mode through the rotating shaft and the bearing, the base is provided with a containing cavity, the containing cavity is provided with a first motor and a first speed reducer, the first motor and the first speed reducer drive a first driving gear to rotate, and the first driving gear are meshed and driven to drive the rotating disc to rotate on the base.

Description

Feeding mechanism for thermal bonding corrugating machine

Technical Field

The utility model relates to the technical field of plastic packaging box production lines, in particular to a feeding mechanism for a thermal bonding corrugating machine.

Background

Chinese patent number 2019204603256 discloses a feeding vehicle for a thermal bonding corrugating machine and a feeding system thereof, wherein the feeding vehicle comprises a material roller for rolling a coiled material J and a movable vehicle body, two sides of the movable vehicle body are respectively provided with a support seat, and at least one support seat is provided with a switching component for connecting the material roller; the switching assembly comprises a switching screw rod, a switching spiral ring and a switching joint, wherein the switching screw rod is axially moved relative to the support seat, the switching spiral ring is positioned and rotated relative to the support seat, the switching spiral ring is in threaded connection with the switching screw rod, the switching joint is arranged on the switching screw rod, and the switching screw rod drives the switching joint to axially move; during feeding, the adapter is detachably connected with the material roller, and the adapter is positioned and rotated on the adapter screw rod along with the material roller.

The distance between the two bracket seats of the feeding car for the thermal bonding corrugating machine cannot be adjusted, and the feeding rolls with different specifications cannot be clamped.

The seed feeding system comprises two feeding carts, wherein the moving tracks of the two feeding carts are parallel to each other. When the coiled material J on one of the feeding carts is used up, the other feeding cart can be fed, and workers can feed the returned feeding carts. The two loading trucks alternately work by moving back and forth, as shown in fig. 8, the moving track occupies a larger factory building area.

The applicant has therefore made improvements on the basis of the above.

Disclosure of Invention

The utility model aims to provide a feeding mechanism for a thermal bonding corrugating machine, which is characterized in that two feeding devices which are oppositely arranged are arranged on a rotating disc, the two feeding devices work alternately through the rotation of the rotating disc, and the two feeding devices are canceled from moving back and forth, so that the occupied area of a factory building is effectively reduced.

According to the feeding mechanism for the thermal bonding corrugating machine, which is designed according to the purpose, the feeding mechanism comprises a first feeding device and a second feeding device, and further comprises a rotating disc, wherein the first feeding device and the second feeding device are oppositely arranged on the rotating disc respectively, the rotating disc rotates under the action of external force, the positions of the first feeding device and the second feeding device are interchanged, and the first feeding device and the second feeding device work alternately through the rotation of the rotating disc. The two feeding devices work alternately through the rotation of the rotating disc, the structure that the two feeding devices move back and forth is canceled, and then the area of a factory building occupied by the feeding devices is effectively reduced.

The rotating disc is arranged on the base in a rotating mode through the rotating shaft and the bearing, the base is provided with a containing cavity, a first motor and a first speed reducer are arranged on the containing cavity and are in transmission connection, a first driving gear is arranged at the output end of the first speed reducer, a first transmission gear is arranged at the bottom of the rotating disc and meshed with the first transmission gear, the first motor and the first speed reducer drive the first driving gear to rotate, and the first driving gear and the first transmission gear are meshed and transmitted to drive the rotating disc to rotate on the base.

Controlling the rotation angle of the rotating disc by controlling the rotation number of the motor shaft of the first motor; or, the rotation angle of the rotating disc is controlled by setting the meshing tooth modulus between the first driving gear and the first transmission gear.

The first feeding device and the second feeding device comprise a fixed seat fixed on a rotating disc and a movable seat arranged on the rotating disc in a sliding manner, the fixed seat and the movable seat are both provided with a switching assembly for connecting a material roller, the material roller is provided with a film winding and wrapping on the outer surface of the material roller through winding; and a supporting frame is arranged between the first feeding device and the second feeding device, a cylindrical film acting on the rolled film is arranged on the supporting frame, and the cylindrical film is contacted with the rolled film when the rolled film of the first feeding device or the second feeding device is conveyed to a processing mechanism through the rotation of a traction roller so as to slow down the traction rotation speed of the rolled film.

The support frame is provided with a hanging rod for hanging the cylindrical film, the left side and the right side of the support frame are provided with mounting grooves, the mounting grooves on the left side and the right side of the support frame are respectively provided with rotating screw rods, two ends of the hanging rod are respectively provided with nut movable seats corresponding to each screw rod, the nut movable seats are connected with the corresponding screw rods through screw threads in a transmission manner, the screw rods on the left side and the right side of the support frame rotate downwards, the two nut movable seats drive the hanging rod to move up and down along the screw rods so as to adjust the up-down position of the cylindrical film, and when the material roller drives the cylindrical film to be mounted between the fixing seat and the movable seat, the cylindrical film moves up so as to avoid clamping of the cylindrical film, and the cylindrical film rises to form clamping avoidance. When the film is rolled up through the conveying traction rotation in the place ahead, avoid rolling up the film rotational speed when faster, the section of thick bamboo membrane does the falling motion and contacts with the film of rolling up, slows down the film rotational speed of rolling up, avoids the pay-off fast, can not effectively link up with the process in place ahead.

Each screw rod one end runs through the top of support frame, the top of support frame corresponds the screw rod of left and right sides and is equipped with the synchronizing lever, the both ends of synchronizing lever correspond every screw rod respectively and are equipped with worm gear fixing base, the synchronizing lever both ends are interlude worm gear fixing base respectively, and synchronizing lever one end is connected with a screw rod transmission through first worm wheel, the first worm, the synchronizing lever other end is connected with another screw rod transmission through second worm wheel, synchronizing lever one end runs through a worm gear fixing base and is equipped with the second reduction gear, the second motor, the output and the synchronizing lever one end transmission of second reduction gear are connected, the second motor is connected with the second reduction gear transmission, the second motor, second reduction gear drive synchronizing lever rotates, synchronizing lever both ends drive two screws through worm wheel, worm respectively and carry out synchronous rotation.

The bottom of the movable seat is provided with a second driving gear and a sliding block, the rotating disc is provided with a rack corresponding to the second driving gear, the rotating disc is provided with a sliding rail corresponding to the sliding block, the second driving gear is meshed with the rack, the sliding block is in sliding fit with the sliding rail, the movable seat is provided with a third speed reducer and a third motor, the output end of the third speed reducer is connected with the second driving gear in a transmission manner, the third motor is connected with the third speed reducer in a transmission manner, the third motor and the third speed reducer drive the second driving gear to rotate along the rack, so that the second driving gear moves along the rack, the movable seat slides along the sliding rail through the sliding block, the distance between the movable seat and the fixed seat is adjusted, and then the material rollers with different length specifications are clamped.

The movement stroke of the movable seat is controlled by controlling the rotation number of the motor shaft of the third motor.

The switching subassembly includes switching screw rod, switching spiral ring and adapter, and the switching screw rod alternates and rotates to set up on movable seat or the fixing base to make switching screw rod axial displacement set up on movable seat or the fixing base, the switching spiral ring cover is established on the switching screw rod surface, and the mutual screw connection of switching spiral ring and switching screw rod, adapter setting are on the one end of switching screw rod, and switching screw rod drives adapter axial displacement, in order to cooperate fixing base, movable seat clamping or loosen the material roller.

The movable seat and the fixed seat are respectively provided with a rotating speed adjusting component, each rotating speed adjusting component comprises two clamping blocks which are mutually symmetrically matched, one ends of the two clamping blocks are mutually connected, the other ends of the two clamping blocks are separated from each other, the separating end of one clamping block is provided with an adjusting screw rod, the adjusting screw rod penetrates through the separating end of the other clamping block and is in threaded connection with an adjusting nut, and at least part of the clamping blocks are in contact with the material roller and/or the adapter; rotating the adjusting nut to adjust the clamping pressure of the clamping block acting on the material roller and/or the adapter; the clamping block is provided with an arc encircling surface which is matched with and contacted with the surface of the material roller and/or the adapter; the adapter is provided with an adapter groove, the end part of the material roller is provided with an adapter step, and the adapter step is inserted into the adapter groove to realize the connection of the adapter and the material roller.

The beneficial effects of the utility model are as follows:

the rotating disc is provided with two feeding devices which are oppositely arranged, the two feeding devices work alternately through the rotation of the rotating disc, the structure that the two feeding devices move back and forth is canceled, and then the area of a factory building occupied by the feeding devices is effectively reduced.

When the material roller drives the coiled film to be arranged between the fixed seat and the movable seat, the cylindrical film moves upwards so as to avoid the clamping of the coiled film, and the cylindrical film rises to form clamping avoidance. When the film is rolled, the film rolling speed is prevented from being reduced and contacted with the film rolling when the film rolling speed is prevented from being faster by the traction of the front conveying, the film rolling speed is reduced, the feeding speed is prevented from being fast, the film rolling speed cannot be effectively connected with the front working procedure, and when the film rolling speed is thinner and thinner, the film rolling speed is only required to be adjusted through the speed adjusting assembly, and the film rolling speed is not required to be contacted with the film rolling.

And adjusting the distance between the movable seat and the fixed seat, and clamping the material rollers with different length specifications.

Drawings

Fig. 1 is a schematic perspective view of a feeding mechanism according to an embodiment of the present utility model.

Fig. 2 is a schematic plan view of a feeding mechanism according to an embodiment of the present utility model.

Fig. 3 is a schematic view of another azimuth plane structure of the feeding mechanism according to an embodiment of the present utility model.

Fig. 4 is a schematic structural diagram of a loading device with two oppositely arranged turntables according to an embodiment of the present utility model.

Fig. 5 is a schematic cross-sectional structure of a turntable with two feeding devices disposed opposite to each other according to an embodiment of the present utility model.

Fig. 6 is a schematic structural view of a movable seat slidably disposed on a turntable according to an embodiment of the present utility model.

Fig. 7 is a schematic structural diagram of a switching component on a movable base or a fixed base according to an embodiment of the utility model.

Fig. 8 is a schematic structural diagram of a feeding trolley in the prior art.

Detailed Description

The utility model is further described below with reference to the drawings and examples.

Referring to fig. 1-7, a feeding mechanism for a thermal bonding corrugating machine comprises a first feeding device 1, a second feeding device 2, a rotating disc 3, wherein the first feeding device 1 and the second feeding device 2 are oppositely arranged on the rotating disc 3 respectively, the rotating disc 3 rotates under the action of external force, the positions of the first feeding device 1 and the second feeding device 2 are interchanged, and the first feeding device 1 and the second feeding device 2 work alternately through the rotation of the rotating disc 3.

The rotating disc 3 is arranged on the base 4 in a rotating mode through a rotating shaft and a bearing, the base 4 is provided with a containing cavity, a first motor 5 and a first speed reducer 6 are arranged on the containing cavity, the first motor 5 and the first speed reducer 6 are in transmission connection, a first driving gear 7 is arranged at the output end of the first speed reducer 6, a first transmission gear 8 is arranged at the bottom of the rotating disc 3, the first driving gear 7 is meshed with the first transmission gear 8, the first motor 5 and the first speed reducer 6 drive the first driving gear 7 to rotate, and the first driving gear 7 and the first transmission gear 8 are meshed to drive the rotating disc 3 to rotate on the base 4.

In this embodiment, the base 4 is provided with a rotary door corresponding to the accommodating cavity, and the rotary door is hinged at one side of the base 4 to open or close the accommodating cavity by rotation, and the first motor 5 is fixed on the accommodating cavity by a bracket. The base 4 is provided with a heat radiation fan, a heat radiation hole and the like corresponding to the first motor 5.

The rotation angle of the rotating disc 3 is controlled by controlling the rotation number of the motor shaft of the first motor 5; alternatively, the rotation angle of the rotary disk 3 is controlled by setting the meshing tooth pattern between the first drive gear 7 and the first transmission gear 8.

The first feeding device 1 and the second feeding device 2 respectively comprise a fixed seat 9 fixed on the rotating disc 3 and a movable seat 10 arranged on the rotating disc 3 in a sliding manner, the fixed seat 9 and the movable seat 10 are respectively provided with a switching component for connecting a material roller 11, the material roller 11 is provided with a film winding 12, and the film winding 12 is wrapped on the outer surface of the material roller 11 through winding; a supporting frame 13 is arranged between the first feeding device 1 and the second feeding device 2, a cylindrical film 14 acting on the rolled film 12 is arranged on the supporting frame 13, and when the rolled film 12 of the first feeding device 1 or the second feeding device 2 is conveyed to a processing mechanism through the rotation of a traction roller, the cylindrical film 14 is contacted with the rolled film 12 so as to slow down the traction rotation speed of the rolled film 12.

In this embodiment, a fixing block is provided at the bottom of the fixing base 9, and the fixing block is fixed on the rotating disc 3 by a screw or welding.

The support frame 13 is provided with a hanging rod 15 for hanging the tubular film 14, the left side and the right side of the support frame 13 are provided with mounting grooves 16, the mounting grooves 16 on the left side and the right side of the support frame 13 are respectively provided with rotating screw rods 17, two ends of the hanging rod 15 are respectively provided with a nut movable seat 18 corresponding to each screw rod 17, the nut movable seats 18 are connected with the corresponding screw rods 17 through screw threads in a transmission manner, the screw rods 17 on the left side and the right side of the support frame 13 rotate down, and the two nut movable seats 18 drive the hanging rod 15 to move up and down along the screw rods 17 so as to adjust the up-down position of the tubular film 14.

In the present embodiment, the suspension rod 15 and the nut movable seat 18 are detachably connected by a screw, a nut, a connection block, or the like.

In the present embodiment, the connection drum roller of the drum film 14 is hung on the hanging rod 15 by a hanging rope.

One end of each screw rod 17 penetrates through the top of the supporting frame 13, the screw rods 17 on the left side and the right side of the top of the supporting frame 13 are correspondingly provided with synchronizing rods 19, two ends of each synchronizing rod 19 are respectively provided with worm gear fixing seats corresponding to the screw rods 17, two ends of each synchronizing rod 19 are respectively inserted into the worm gear fixing seats, one end of each synchronizing rod 19 is in transmission connection with one screw rod 17 through a first worm wheel and a first worm, the other end of each synchronizing rod 19 is in transmission connection with the other screw rod 17 through a second worm wheel and a second worm, one end of each synchronizing rod 19 penetrates through one worm gear fixing seat and is provided with a second speed reducer 20 and a second motor 21, the output end of each second speed reducer 20 is in transmission connection with one end of each synchronizing rod 19, the second motor 21 and the second speed reducer 20 are in transmission connection, and the two ends of each synchronizing rod 19 are respectively driven by the worm wheel and the worm to synchronously rotate.

In this embodiment, the screw 17 and the nut movable seat 18 may be replaced by a sprocket and a chain, and the synchronizing rod 19 penetrates through the left and right sprockets, and the chains of the two sprockets are respectively connected with the hanging rod 15 in a matching manner.

In this embodiment, one end of each screw 17 penetrates through the top of the supporting frame 13, a connecting flange is arranged on the supporting frame 13, each screw 17 correspondingly penetrates through the connecting flange of the supporting frame 13, so that the screws 17 are limited on the connecting flange, and the worm gear fixing seat is fixed on the top of the supporting frame 13 through screws.

The bottom of the movable seat 10 is provided with a second driving gear 22 and a sliding block 24, the rotating disc 3 is provided with a rack 23 corresponding to the second driving gear 22, the rotating disc 3 is provided with a sliding rail 25 corresponding to the sliding block 24, the second driving gear 22 is meshed with the rack 23, the sliding block 24 is in sliding fit with the sliding rail 25, the movable seat 10 is provided with a third speed reducer 26 and a third motor 27, the output end of the third speed reducer 26 is in transmission connection with the second driving gear 22, the third motor 27 is in transmission connection with the third speed reducer 26, and the third motor 27 and the third speed reducer 26 drive the second driving gear 22 to rotate along the rack 23 so as to enable the second driving gear 22 to move along the rack 23, and further enable the movable seat 10 to slide along the sliding rail 25 through the sliding block 24, so that the distance between the movable seat 10 and the fixed seat 9 is adjusted.

In this embodiment, the movable base 10 is provided with a supporting position for supporting the third motor 27 and the third speed reducer 26, and the third motor 27 is fixed on the supporting position through a connecting block such as a screw.

In the present embodiment, the rack 23 and the slide rail 25 are fixed to the rotating disk 3 by screws.

The output end of the third speed reducer 26 penetrates through the bottom of the bearing position and is connected with the second driving gear 22.

The movement stroke of the movable seat 10 is controlled by controlling the rotation number of the motor shaft of the third motor 27.

The switching subassembly includes switching screw rod 28, switching spiral ring 29 and adapter 30, and switching screw rod 28 alternates and rotates to set up on movable seat 10 or the fixing base 9, so that switching screw rod 28 axial displacement sets up on movable seat 10 or fixing base 9, and switching spiral ring 29 cover is established on switching screw rod 28 surface, and switching spiral ring 29 and mutual screw connection of switching screw rod 28, adapter 30 set up on the one end of switching screw rod 28, and switching screw rod 28 drives adapter 30 axial displacement to cooperate fixing base 9, movable seat 10 clamping or loosen material roller 11.

In this embodiment, when the material roller 11 is clamped or released, the crane or the hanger with the lifting structure may be used to cooperate, so that the material roller 11 may be brought to the clamping position, one end of the material roller 11 is positioned at the fixed seat 9, and when the movable seat 10 moves, the material roller 11 is clamped. When the material roller 11 is loosened, the material roller 11 is connected with a lifting hook of the crane, and when the movable seat 10 moves, the material roller 11 is loosened, and the material roller 11 cannot fall off.

The movable seat 10 and the fixed seat 9 are respectively provided with a rotating speed adjusting component, the rotating speed adjusting components comprise two clamping blocks 31 which are mutually symmetrically matched, one ends of the two clamping blocks 31 are mutually connected, the other ends of the two clamping blocks are mutually separated, the separating end of one clamping block 31 is provided with an adjusting screw rod 32, the adjusting screw rod 32 passes through the separating end of the other clamping block 31 and is in threaded connection with an adjusting nut 33, and at least part of the clamping blocks 31 are in contact with the material roller 11 and/or the adapter 30; turning the adjusting nut 33 to adjust the clamping pressure of the clamping block 31 on the roll 11 and/or the adapter 30; the clamping block 31 is provided with an arc encircling surface which is matched with and contacted with the surface of the material roller 11 and/or the adapter 30; the adapter 30 is provided with an adapter groove, the end part of the material roller 11 is provided with an adapter step, and the adapter step is inserted into the adapter groove to realize the connection between the adapter 30 and the material roller 11.

In this embodiment, two ends of the two clamping blocks 31 can be separated from each other, and the separated parts at two ends of the two clamping blocks 31 are provided with an adjusting screw 3 and an adjusting nut 33.

The foregoing is a preferred embodiment of the utility model showing and describing the general principles, features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, which have been described in the foregoing description merely illustrates the principles of the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides a feed mechanism that heat bonding corrugating machine was used, includes first loading attachment (1), second loading attachment (2), its characterized in that: still including rolling disc (3), first loading attachment (1), second loading attachment (2) are respectively to setting up on rolling disc (3), and rolling disc (3) rotate under the exogenic action, and first loading attachment (1), second loading attachment (2) position interchange realizes that first loading attachment (1), second loading attachment (2) are through the rotation of rolling disc (3) and work in turn.

2. The feeding mechanism for a thermal bonding corrugating machine according to claim 1, wherein: the rotating disc (3) is arranged on the base (4) through a rotating shaft and a bearing, the base (4) is provided with a containing cavity, a first motor (5) and a first speed reducer (6) are arranged on the containing cavity, the first motor (5) and the first speed reducer (6) are in transmission connection, a first driving gear (7) is arranged at the output end of the first speed reducer (6), a first driving gear (8) is arranged at the bottom of the rotating disc (3), the first driving gear (7) is meshed with the first driving gear (8), the first motor (5) and the first speed reducer (6) drive the first driving gear (7) to rotate, and the first driving gear (7) and the first driving gear (8) are meshed for transmission so as to drive the rotating disc (3) to rotate on the base (4).

3. The feeding mechanism for a thermal bonding corrugating machine according to claim 2, wherein: the rotation angle of the rotating disc (3) is controlled by controlling the rotation number of the motor shaft of the first motor (5); or, the rotation angle of the rotating disc (3) is controlled by setting the meshing gear modulus between the first driving gear (7) and the first transmission gear (8).

4. The feeding mechanism for a thermal bonding corrugating machine according to claim 1, wherein: the first feeding device (1) and the second feeding device (2) comprise a fixed seat (9) fixed on the rotating disc (3) and a movable seat (10) arranged on the rotating disc (3) in a sliding manner, the fixed seat (9) and the movable seat (10) are respectively provided with a switching component for connecting a material roller (11), the material roller (11) is provided with a rolling film (12), and the rolling film (12) is wrapped on the outer surface of the material roller (11) through rolling and winding; a supporting frame (13) is arranged between the first feeding device (1) and the second feeding device (2), a cylindrical film (14) acting on the rolled film (12) is arranged on the supporting frame (13), and when the rolled film (12) of the first feeding device (1) or the second feeding device (2) is conveyed to a processing mechanism through rotation of a traction roller, the cylindrical film (14) is contacted with the rolled film (12) so as to slow down the traction rotation speed of the rolled film (12).

5. The feeding mechanism for a thermal bonding corrugating machine according to claim 4, wherein: the support frame (13) is provided with a hanging rod (15) for hanging a tubular film (14), the left side and the right side of the support frame (13) are provided with mounting grooves (16), the mounting grooves (16) on the left side and the right side of the support frame (13) are respectively provided with rotating screw rods (17), two ends of the hanging rod (15) are respectively provided with a nut movable seat (18) corresponding to each screw rod (17), the nut movable seats (18) are connected with the corresponding screw rods (17) through threaded transmission, the screw rods (17) on the left side and the right side of the support frame (13) rotate downwards, and the two nut movable seats (18) drive the hanging rod (15) to move up and down along the screw rods (17) so as to adjust the up-down positions of the tubular film (14).

6. The feeding mechanism for a thermal bonding corrugating machine according to claim 5, wherein: each screw rod (17) one end runs through the top of support frame (13), screw rod (17) of the left and right sides are corresponding at the top of support frame (13) are equipped with synchronizing lever (19), the both ends of synchronizing lever (19) correspond every screw rod (17) respectively and are equipped with worm gear fixing base, worm gear fixing base is interlude respectively at synchronizing lever (19) both ends, and synchronizing lever (19) one end is connected through first worm wheel, first worm and a screw rod (17) transmission, synchronizing lever (19) other end is connected through second worm wheel, second worm and another screw rod (17) transmission, synchronizing lever (19) one end runs through a worm gear fixing base and is equipped with second reduction gear (20), second motor (21), the output and the one end transmission of synchronizing lever (19) of second reduction gear (20) are connected, second motor (21) and second reduction gear (20) transmission are connected, second motor (21), second reduction gear (20) drive synchronizing lever (19) rotate, synchronizing lever (19) both ends drive two screw rods (17) through worm wheel, respectively.

7. The feeding mechanism for a thermal bonding corrugating machine according to claim 4, wherein: the bottom of the movable seat (10) is provided with a second driving gear (22) and a sliding block (24), the rotating disc (3) is provided with a rack (23) corresponding to the second driving gear (22), the rotating disc (3) is provided with a sliding rail (25) corresponding to the sliding block (24), the second driving gear (22) is meshed with the rack (23), the sliding block (24) is in sliding fit with the sliding rail (25), the movable seat (10) is provided with a third speed reducer (26) and a third motor (27), the output end of the third speed reducer (26) is in transmission connection with the second driving gear (22), the third motor (27) is in transmission connection with the third speed reducer (26), and the third motor (27) and the third speed reducer (26) drive the second driving gear (22) to rotate along the rack (23) so that the second driving gear (22) moves along the rack (23), and the movable seat (10) slides along the sliding rail (25) through the sliding block (24) so as to adjust the distance between the movable seat (10) and the fixed seat (9).

8. The feeding mechanism for a thermal bonding corrugating machine as claimed in claim 7, wherein: the movement stroke of the movable seat (10) is controlled by controlling the rotation number of the motor shaft of the third motor (27).

9. The feeding mechanism for a thermal bonding corrugating machine according to claim 4, wherein: the switching subassembly includes switching screw rod (28), switching spiral ring (29) and adapter (30), on switching screw rod (28) interlude rotation set up movable seat (10) or fixing base (9), so that switching screw rod (28) axial displacement sets up on movable seat (10) or fixing base (9), switching spiral ring (29) cover is established on switching screw rod (28) surface, switching spiral ring (29) are connected with the mutual spiral shell mosquito of switching screw rod (28), adapter (30) set up on the one end of switching screw rod (28), switching screw rod (28) drive adapter (30) axial displacement, in order to cooperate fixing base (9), clamping of movable seat (10) or loosen material roller (11).

10. The feeding mechanism for a thermal bonding corrugating machine as claimed in claim 9, wherein: the movable seat (10) and the fixed seat (9) are both provided with rotating speed adjusting components, the rotating speed adjusting components comprise two clamping blocks (31) which are symmetrically matched with each other, one ends of the two clamping blocks (31) are connected with each other, the other ends of the two clamping blocks are separated from each other, the separating end of one clamping block (31) is provided with an adjusting screw (32), the adjusting screw (32) passes through the separating end of the other clamping block (31) and is in threaded connection with an adjusting nut (33), and at least part of the clamping blocks (31) are contacted with the material roller (11) and/or the adapter (30); rotating the adjusting nut (33) to adjust the clamping pressure of the clamping block (31) acting on the material roller (11) and/or the adapter (30); an arc encircling surface is arranged on the clamping block (31), and the arc encircling surface is matched with and contacted with the surfaces of the material roller (11) and/or the adapter (30); the adapter (30) is provided with an adapter groove, the end part of the material roller (11) is provided with an adapter step, and the adapter step is inserted into the adapter groove to realize the connection between the adapter (30) and the material roller (11).