CN213797243U

CN213797243U - Rib punching machine

Info

Publication number: CN213797243U
Application number: CN202021929575.9U
Authority: CN
Inventors: 俞小大; 俞迪; 夏宏林; 朱东方; 吴建军; 张训华; 陈韦成; 徐睿; 夏明辉
Original assignee: Anhui Hexinda Environmental Protection Technology Co ltd
Current assignee: Anhui Hexinda Environmental Protection Technology Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-07-27
Anticipated expiration: 2030-09-07

Abstract

The utility model discloses a rib punching machine. The prior art has no equipment for replacing manual reinforcement punching process. The utility model comprises a main frame, a blanking mechanism, a lifting mechanism, a first sub-frame component, a rear frame component and a second sub-frame component; the main frame comprises a main frame body, an electric roller assembly and a first guide wheel; the blanking mechanism consists of a hopper, an installation frame, a blanking driving piece and a feeding mechanism; the first auxiliary frame component comprises a first auxiliary frame body and a first unpowered roller; the secondary frame assembly II comprises a secondary frame body II, an unpowered roller II and a guide wheel II; the rear frame component comprises a rear frame body and an unpowered roller III. The utility model discloses can wait to plaster the screed on screed aluminium alloy and rib subassembly simultaneously more than two, and can compare artifical screed according to required screed thickness adjustment unloading mechanism height, efficient, with low costs, screed are of high quality, the screed is convenient for carry and accomodate after the screed is accomplished.

Description

Rib punching machine

Technical Field

The utility model belongs to the technical field of interior decoration, concretely relates to bar punching machine.

Background

At present, the reinforcement punching process of indoor decoration is manually completed by constructors, and the operation flow comprises three steps:

1. adding the light plastering gypsum into purified water, and uniformly stirring the gypsum by using an electric stirrer;

2. placing the ribs on the aluminum alloy;

3. and smearing the uniformly stirred gypsum mortar on the ribs according to the actual requirements on site.

The on-site construction is carried out according to the flow, the efficiency is relatively low, and meanwhile, the technical level of on-site constructors is required to be high, so that the cost of the reinforcement punching is high. At present, no equipment can replace manual rib punching process, work efficiency is improved, and cost is reduced.

Disclosure of Invention

The utility model aims at providing a towards muscle machine to the not enough of prior art.

The utility model discloses a main frame, unloading mechanism, elevating system, subframe subassembly one, back frame subassembly and subframe subassembly two. The main frame comprises a main frame body, an electric roller assembly and a first guide wheel; the electric roller component consists of a driving motor and a power driving roller; the base of the driving motor is fixed on the main frame body, and the power driving roller is fixed on the output shaft of the driving motor; n leading wheels are fixed on the power driving roller at intervals, and n takes a value in the range of 2-4. The blanking mechanism consists of a hopper, an installation frame, a blanking driving piece and a feeding mechanism; the mounting rack is driven to lift by a lifting mechanism; the hopper is fixed on the mounting frame; the hopper is provided with n discharge ports, and each discharge port is positioned right above one guide wheel I; the feeding mechanism is arranged in the hopper; the feeding mechanism is driven by the blanking driving piece.

The first auxiliary frame component comprises a first auxiliary frame body and a first unpowered roller; the unpowered rollers are arranged at intervals along the length direction of the secondary frame body, and the unpowered rollers and the secondary frame body form a rotating pair. The secondary frame assembly II comprises a secondary frame body II, an unpowered roller II and a guide wheel II; the plurality of unpowered rollers II are arranged at intervals along the length direction of the secondary frame body II, and the unpowered rollers II and the secondary frame body II form a revolute pair; the n guide wheels are fixed on one unpowered roller II at intervals, and the n guide wheels II are aligned with the n guide wheels I of the main frame one by one at the axial positions along the unpowered roller II; and the first auxiliary frame body of the first auxiliary frame assembly and the second auxiliary frame body of the second auxiliary frame assembly are hinged at two ends of the main frame body. The rear frame component comprises a rear frame body and an unpowered roller III; the plurality of unpowered rollers III are arranged at intervals along the length direction of the rear frame body, and the unpowered rollers III and the rear frame body form a revolute pair; the rear frame assemblies are two, the rear frame body of one rear frame assembly is hinged with the second subframe body of the second subframe assembly, and the rear frame body of the other rear frame assembly is hinged with the first subframe body of the first subframe assembly.

Preferably, the main frame further comprises universal wheels, and the universal wheels are mounted at the bottom of the main frame body.

Preferably, the blanking driving part consists of a servo motor, a gear transmission mechanism and a synchronous belt transmission mechanism I; a base of the servo motor is fixed on the mounting frame, and an output shaft of the servo motor drives a first synchronous belt transmission mechanism through a gear transmission mechanism; and the first synchronous belt transmission mechanism is connected with the feeding mechanism.

More preferably, the gear transmission mechanism consists of a driving gear and a driven gear; the driving gear is fixed on an output shaft of the servo motor and is meshed with the driven gear; the driven gear and a driving belt wheel of the first synchronous belt transmission mechanism are fixed on the first transmission shaft, and the driven belt wheel of the first synchronous belt transmission mechanism is fixed with the feeding mechanism; the driving belt wheel is connected with the driven belt wheel through a transmission belt.

Preferably, the feeding mechanism adopts a flood dragon, a revolute pair is formed by the feeding mechanism and the bottom of the hopper, and a driven belt wheel of the first synchronous belt transmission mechanism is fixed on the flood dragon.

Preferably, the lifting mechanism consists of a first lifting screw pair, a second synchronous belt transmission mechanism, a third synchronous belt transmission mechanism, a fourth synchronous belt transmission mechanism, a support frame and a second lifting screw pair; the first lifting screw pair and the second lifting screw pair are arranged at two ends of the blanking mechanism and are composed of screws and nut blocks; the screw rod and the nut block form a screw pair; the screws of the first lifting screw pair and the second lifting screw pair are supported on the main frame body through bearings, and nut blocks of the first lifting screw pair and the second lifting screw pair are fixed with the mounting frame of the blanking mechanism; a driving belt wheel of the second synchronous belt transmission mechanism is fixed on a screw rod of the first lifting screw rod pair, and a driven belt wheel of the second synchronous belt transmission mechanism and a driving belt wheel of the third synchronous belt transmission mechanism are fixed on the second transmission shaft; a driven belt wheel of the synchronous belt transmission mechanism III and a driving belt wheel of the synchronous belt transmission mechanism IV are fixed on the transmission shaft III; a driven belt wheel of the synchronous belt transmission mechanism IV is fixed on a screw rod of the lifting screw rod pair II; the second transmission shaft and the third transmission shaft are supported on a support frame fixed with the main frame body through bearings.

More preferably, a hand wheel is fixed on the top of the first lifting screw pair.

Preferably, the first subframe assembly further comprises a plurality of first height adjusting assemblies arranged on two sides of the first subframe body in an array manner; the first height adjusting assembly consists of a threaded rod, a foot pad and two nuts; the foot pad is fixed at the bottom of the threaded rod, and the threaded rod penetrates through a through hole formed in the first auxiliary frame body; two nuts connected to the threaded rod are respectively arranged at two ends of the through hole, and the auxiliary frame body I is pressed in a pressure-equalizing mode. The secondary frame assembly II also comprises a plurality of height adjusting assemblies II which are arranged on two sides of the secondary frame body II in an array manner; the structure of the height adjusting assembly II is completely the same as that of the height adjusting assembly I; a threaded rod of the second height adjusting assembly penetrates through a through hole formed in the second auxiliary frame body, and two nuts connected to the threaded rod of the second height adjusting assembly press the second auxiliary frame body tightly; the rear frame component also comprises a plurality of height adjusting components III which are arranged on two sides of the rear frame body in an array manner; the structure of the third height adjusting assembly is identical to that of the first height adjusting assembly, the threaded rod of the third height adjusting assembly penetrates through the through hole formed in the rear frame body, and the two nuts connected to the threaded rod of the third height adjusting assembly are tightly pressed on the rear frame body.

Preferably, in the carrying or storage state, the first subframe assembly and the second subframe assembly are turned upwards to be arranged close to the main frame, and the two rear frame assemblies are turned downwards to be respectively close to the first subframe assembly and the second subframe assembly.

The utility model discloses beneficial effect who has:

1. the utility model discloses can realize treating on the screed aluminium alloy and the rib subassembly simultaneously plastering screed more than two, and can be according to the height of required screed thickness adjustment unloading mechanism, constructor only need adjust unloading mechanism height after starting equipment, and the screed process to the rib is just accomplished automatically to equipment, has reduced the personal skill requirement to constructor, compares current interior decoration's artifical screed, has efficient, with low costs, the advantage that screed is of high quality. At present, 1 constructor accomplishes the towards muscle process of 1 rib and needs 1 minute, has used the utility model discloses afterwards, the towards muscle process of 9 ribs can be accomplished in 1 minute of 2 staff, has improved work efficiency greatly.

2. When the ground of a construction site is uneven, the main frame is hinged with the first subframe assembly and the second subframe assembly, the first subframe assembly is hinged with the rear frame assembly or the second subframe assembly is hinged with the rear frame assembly, the utility model can adjust the first height adjusting assembly, the second height adjusting assembly and the third height adjusting assembly to the same preset height by adjusting the first height adjusting assembly, the first subframe body of the first subframe assembly, the second subframe body of the second subframe assembly and the rear frame bodies of the two rear frame assemblies, and the first guide wheel of the main frame is as high as the second guide wheel of the second subframe assembly, so that the aluminum profile to be punched and the rib assembly are conveyed forwards stably, and the quality of punched ribs is further ensured;

3. the utility model discloses accomplish the back at the dashing muscle, subframe subassembly one, subframe subassembly two and back frame subassembly all can fold, are convenient for carry and accomodate.

4. Use the utility model discloses afterwards, for realizing that the flow construction has laid the basis, can realize the man-hour quota of hedge muscle process, can arrange constructor's work load more rationally, make things convenient for construction management personnel to the control of site operation progress.

Drawings

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

FIG. 2 is a perspective view of the main frame of the present invention;

FIG. 3 is a perspective view of the blanking mechanism of the present invention;

FIG. 4 is a perspective view of the lifting mechanism of the present invention;

FIG. 5 is a perspective view of a first middle subframe assembly of the present invention;

FIG. 6 is a perspective view of the second middle sub-frame assembly of the present invention;

FIG. 7 is a perspective view of the structure of the middle rear frame assembly of the present invention;

FIG. 8 is a schematic structural view of the present invention during the operation of the reinforcement bar;

fig. 9 is a schematic structural view of the carrying or storage state of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, a rib punching machine comprises a main frame 1, a blanking mechanism 2, a lifting mechanism 3, a first sub-frame assembly 4, a rear frame assembly 5 and a second sub-frame assembly 6.

As shown in fig. 2, the main frame 1 includes a main frame body 1-1, a power roller assembly 1-3, and a guide wheel 1-4. The electric roller assembly 1-3 consists of a driving motor and a power driving roller; the base of the driving motor is fixed on the main frame body 1-1, and the power driving roller is fixed on the output shaft of the driving motor; n guide wheels I are fixed on the power driving roller at intervals of 1-4, and n takes a value in the range of 2-4. As a preferred embodiment, universal wheels 1-2 are mounted at the bottom of the main frame body 1-1.

As shown in figure 3, the blanking mechanism 2 is mainly used for uniformly smearing the uniformly stirred gypsum mortar on the aluminum profiles and the ribs and consists of a hopper 2-1, a mounting frame 2-2, a blanking driving piece 2-3 and a feeding mechanism 2-4. The mounting frame 2-2 is driven to lift by a lifting mechanism; the hopper 2-1 is fixed on the mounting frame 2-2; the hopper 2-1 is provided with n discharge ports, and each discharge port is positioned right above one guide wheel I1-4; the feeding mechanism 2-4 is arranged in the hopper 2-1; the blanking driving piece 2-3 drives the feeding mechanism 2-4. As the preferred embodiment, the blanking driving part 2-3 consists of a servo motor, a gear transmission mechanism and a synchronous belt transmission mechanism I; a base of the servo motor is fixed on the mounting frame 2-2, and an output shaft of the servo motor drives a first synchronous belt transmission mechanism through a gear transmission mechanism; the synchronous belt transmission mechanism I is connected with the feeding mechanism 2-4; as a preferred embodiment, the gear transmission mechanism consists of a driving gear and a driven gear; the driving gear is fixed on an output shaft of the servo motor and is meshed with the driven gear; the driven gear and a driving belt wheel of the first synchronous belt transmission mechanism are fixed on the first transmission shaft, and the driven belt wheel of the first synchronous belt transmission mechanism is fixed with the feeding mechanism 2-4; the driving belt wheel is connected with the driven belt wheel through a transmission belt; a flood dragon can be selected as the feeding mechanism 2-4, a revolute pair is formed by the feeding mechanism and the bottom of the hopper 2-1, and the driven belt wheel is fixed on the flood dragon.

As shown in fig. 1 and 4, the lifting mechanism 3 is used for adjusting the height of the blanking mechanism 2 so as to meet the punching rib requirements of different heights. As a preferred embodiment, the lifting mechanism 3 consists of a first lifting screw pair 3-1, a second synchronous belt transmission mechanism, a third synchronous belt transmission mechanism 3-2, a fourth synchronous belt transmission mechanism, a support frame and a second lifting screw pair; the first lifting screw pair 3-1 and the second lifting screw pair are arranged at two ends of the blanking mechanism 2 and are composed of screws and nut blocks; the screw rod and the nut block form a screw pair; the first lifting screw pair 3-1 and the second lifting screw pair are supported on the main frame body 1-1 through bearings, and nut blocks of the first lifting screw pair 3-1 and the second lifting screw pair are fixed with the mounting frame 2-2 of the blanking mechanism; a driving belt wheel of the second synchronous belt transmission mechanism is fixed on a screw rod of the first lifting screw rod pair 3-1, and a driven belt wheel of the second synchronous belt transmission mechanism and a driving belt wheel of the third synchronous belt transmission mechanism 3-2 are both fixed on the second transmission shaft; a driven belt wheel of the synchronous belt transmission mechanism III and a driving belt wheel of the synchronous belt transmission mechanism IV are fixed on the transmission shaft III; a driven belt wheel of the synchronous belt transmission mechanism IV is fixed on a screw rod of the lifting screw rod pair II; the second transmission shaft and the third transmission shaft are supported on a support frame fixed with the main frame body 1-1 through bearings. As a more preferable embodiment, a hand wheel is fixed at the top of the first lifting screw pair 3-1.

As shown in fig. 5, the sub-frame assembly one 4 is mainly used for placing and conveying aluminum profiles and ribs and comprises a sub-frame body one 4-1 and an unpowered roller one 4-2; the unpowered rollers I4-2 are arranged at intervals along the length direction of the auxiliary frame I4-1, and the unpowered rollers I4-2 and the auxiliary frame I4-1 form a rotating pair; as a preferred embodiment, a plurality of height adjusting components I4-3 are arranged on two sides of a subframe body I4-1 in an array manner; the height adjusting assembly I4-3 consists of a threaded rod, a foot pad and two nuts; the foot pad is fixed at the bottom of the threaded rod, and the threaded rod penetrates through a through hole formed in the auxiliary frame body I4-1; two nuts connected with the threaded rod are respectively arranged at two ends of the through hole, and the auxiliary frame body I is pressed tightly by pressure 4-1.

As shown in figure 6, the second sub-frame assembly 6 is mainly used for placing and conveying aluminum profiles and ribs and comprises a second sub-frame body 6-1, a second unpowered roller 6-2 and a second guide wheel 6-4. The plurality of unpowered rollers II 6-2 are arranged at intervals along the length direction of the secondary frame body II 6-1, and the unpowered rollers II 6-2 and the secondary frame body II 6-1 form a revolute pair; the n guide wheels II 6-4 are fixed on one unpowered roller II 6-2 at intervals, and the n guide wheels II 6-4 are aligned with the n guide wheels I1-4 of the main frame 1 one by one at the axial position along the unpowered roller II 6-2. The sub-frame body I4-1 of the sub-frame assembly I4 and the sub-frame body II 6-1 of the sub-frame assembly II 6 are hinged at two ends of the main frame body 1-1. As a preferred embodiment, a plurality of second height adjusting components 6-3 are arranged on two sides of the second sub-frame body 6-1 in an array manner; the structure of the second height adjusting assembly 6-3 is completely the same as that of the first height adjusting assembly 4-3; the threaded rod of the second height adjusting assembly 6-3 penetrates through the through hole formed in the second auxiliary frame body 6-1, and two nuts connected to the threaded rod of the second height adjusting assembly 6-3 press the second auxiliary frame body 6-1 in a pressure equalizing mode.

As shown in fig. 7, the rear frame assembly 5 is mainly used for placing and conveying aluminum profiles and ribs, and comprises a rear frame body 5-1 and an unpowered roller III 5-2; the unpowered rollers III 5-2 are arranged at intervals along the length direction of the rear frame body 5-1, and the unpowered rollers III 5-2 and the rear frame body 5-1 form a rotating pair; the rear frame assemblies 5 are provided with two rear frame assemblies, wherein the rear frame body 5-1 of one rear frame assembly 5 is hinged with the second subframe body 6-1 of the second subframe assembly 6, and the rear frame body 5-1 of the other rear frame assembly 5 is hinged with the first subframe body 4-1 of the first subframe assembly 4. As a preferred embodiment, a plurality of height adjusting assemblies III 5-3 are arranged on two sides of the rear frame body 5-1 in an array manner; the structure of the height adjusting component III 5-3 is completely the same as that of the height adjusting component I4-3, a threaded rod of the height adjusting component III 5-3 penetrates through a through hole formed in the rear frame body 5-1, and two nuts connected to the threaded rod of the height adjusting component III 5-3 tightly press the rear frame body 5-1.

As shown in fig. 8, the working principle of the beading machine is as follows:

adjusting a first subframe body 4-1 of a first subframe assembly 4, a second subframe body 6-1 of a second subframe assembly 6 and rear frame bodies 5-1 of two rear frame assemblies 5 to the same preset height by adjusting a first height adjusting assembly 4-3, a second height adjusting assembly 6-3 and a third height adjusting assembly 5-3, and enabling a first guide wheel 1-4 of a main frame 1 to be as high as a second guide wheel 6-4 of the second subframe assembly 6; then, the blanking mechanism 2 is adjusted to a preset height through the lifting mechanism 3. Wherein, the process that elevating system 3 adjusted 2 positions of unloading mechanism is as follows: and the screw of the first lifting screw pair 3-1 is rotated, the screw power of the first lifting screw pair 3-1 is transmitted to the screw of the second lifting screw pair sequentially through the second synchronous belt transmission mechanism, the third synchronous belt transmission mechanism and the fourth synchronous belt transmission mechanism, and the first lifting screw pair 3-1 and the nut block of the second lifting screw pair are synchronously lifted, so that the blanking mechanism is driven to synchronously lift. And then, adding the light plastering gypsum into the purified water, uniformly stirring by using an electric stirrer, and adding into the blanking mechanism 2. Placing an aluminum profile to be punched and a rib assembly 7 on each group of guide wheels I1-4 and guide wheels II 6-4 which are aligned in the axial position, wherein the ribs are arranged in the notches of the aluminum profile; because the guide wheels I1-4 and the guide wheels II 6-4 are provided with n groups, the utility model can realize the one-time rib punching of n aluminum profiles to be punched and rib components. Finally, a driving motor and a blanking driving piece 2-3 are started simultaneously through a controller, the driving motor drives a power driving roller and n guide wheels I1-4 to rotate, and therefore n aluminum profiles to be punched and rib assemblies are driven to move forwards; meanwhile, the blanking driving piece 2-3 drives the feeding mechanism 2-4 to simultaneously discharge the light plastering gypsum from the n discharge ports, and thus, the simultaneous plastering and screeding on the n aluminum profile and rib assemblies to be screeded are completed. And after the preset time is reached, the rib punching is finished, the driving motor and the blanking driving piece 2-3 are automatically stopped, and the n aluminum profiles and the rib assemblies 8 after the rib punching are taken away.

As shown in fig. 9, the utility model discloses after the dashing muscle is accomplished, turn over a subframe assembly 4 and a relative main frame 1 of subframe assembly two 6 upwards, two relative subframe assemblies 4 of back frame assembly 5 and a relative subframe assembly two 6 turn over downwards, be convenient for transport and accomodate.

Claims

1. The utility model provides a rib punching machine, includes main frame, unloading mechanism, elevating system, subframe subassembly one, back frame subassembly and subframe subassembly two, its characterized in that: the main frame comprises a main frame body, an electric roller assembly and a first guide wheel; the electric roller component consists of a driving motor and a power driving roller; the base of the driving motor is fixed on the main frame body, and the power driving roller is fixed on the output shaft of the driving motor; n guide wheels are fixed on the power driving roller at intervals, and n is a value in the range of 2-4; the blanking mechanism consists of a hopper, an installation frame, a blanking driving piece and a feeding mechanism; the mounting rack is driven to lift by a lifting mechanism; the hopper is fixed on the mounting frame; the hopper is provided with n discharge ports, and each discharge port is positioned right above one guide wheel I; the feeding mechanism is arranged in the hopper; the feeding mechanism is driven by the blanking driving piece;

the first auxiliary frame component comprises a first auxiliary frame body and a first unpowered roller; the unpowered rollers I are arranged at intervals along the length direction of the auxiliary frame body I, and the unpowered rollers I and the auxiliary frame body I form a rotating pair; the secondary frame assembly II comprises a secondary frame body II, an unpowered roller II and a guide wheel II; the plurality of unpowered rollers II are arranged at intervals along the length direction of the secondary frame body II, and the unpowered rollers II and the secondary frame body II form a revolute pair; the n guide wheels are fixed on one unpowered roller II at intervals, and the n guide wheels II are aligned with the n guide wheels I of the main frame one by one at the axial positions along the unpowered roller II; the first subframe body of the first subframe assembly and the second subframe body of the second subframe assembly are hinged at two ends of the main frame body; the rear frame component comprises a rear frame body and an unpowered roller III; the plurality of unpowered rollers III are arranged at intervals along the length direction of the rear frame body, and the unpowered rollers III and the rear frame body form a revolute pair; the rear frame assemblies are two, the rear frame body of one rear frame assembly is hinged with the second subframe body of the second subframe assembly, and the rear frame body of the other rear frame assembly is hinged with the first subframe body of the first subframe assembly.

2. A screed machine according to claim 1 wherein: the main frame also comprises universal wheels, and the universal wheels are arranged at the bottom of the main frame body.

3. A screed machine according to claim 1 wherein: the blanking driving piece consists of a servo motor, a gear transmission mechanism and a synchronous belt transmission mechanism I; a base of the servo motor is fixed on the mounting frame, and an output shaft of the servo motor drives a first synchronous belt transmission mechanism through a gear transmission mechanism; and the first synchronous belt transmission mechanism is connected with the feeding mechanism.

4. A screed machine according to claim 3 wherein: the gear transmission mechanism consists of a driving gear and a driven gear; the driving gear is fixed on an output shaft of the servo motor and is meshed with the driven gear; the driven gear and a driving belt wheel of the first synchronous belt transmission mechanism are fixed on the first transmission shaft, and the driven belt wheel of the first synchronous belt transmission mechanism is fixed with the feeding mechanism; the driving belt wheel is connected with the driven belt wheel through a transmission belt.

5. A screed machine according to claim 1 wherein: the feeding mechanism selects a flood dragon, a revolute pair is formed by the feeding mechanism and the bottom of the hopper, and a driven belt wheel of the synchronous belt transmission mechanism I is fixed on the flood dragon.

6. A screed machine according to claim 1 wherein: the lifting mechanism consists of a first lifting screw pair, a second synchronous belt transmission mechanism, a third synchronous belt transmission mechanism, a fourth synchronous belt transmission mechanism, a support frame and a second lifting screw pair; the first lifting screw pair and the second lifting screw pair are arranged at two ends of the blanking mechanism and are composed of screws and nut blocks; the screw rod and the nut block form a screw pair; the screws of the first lifting screw pair and the second lifting screw pair are supported on the main frame body through bearings, and nut blocks of the first lifting screw pair and the second lifting screw pair are fixed with the mounting frame of the blanking mechanism; a driving belt wheel of the second synchronous belt transmission mechanism is fixed on a screw rod of the first lifting screw rod pair, and a driven belt wheel of the second synchronous belt transmission mechanism and a driving belt wheel of the third synchronous belt transmission mechanism are fixed on the second transmission shaft; a driven belt wheel of the synchronous belt transmission mechanism III and a driving belt wheel of the synchronous belt transmission mechanism IV are fixed on the transmission shaft III; a driven belt wheel of the synchronous belt transmission mechanism IV is fixed on a screw rod of the lifting screw rod pair II; the second transmission shaft and the third transmission shaft are supported on a support frame fixed with the main frame body through bearings.

7. A screed machine according to claim 6 wherein: and a hand wheel is fixed at the top of the first lifting screw pair.

8. A screed machine according to any one of claims 1 to 7 wherein: the first subframe assembly further comprises a plurality of first height adjusting assemblies which are arranged on two sides of the first subframe body in an array manner; the first height adjusting assembly consists of a threaded rod, a foot pad and two nuts; the foot pad is fixed at the bottom of the threaded rod, and the threaded rod penetrates through a through hole formed in the first auxiliary frame body; two nuts connected to the threaded rod are respectively arranged at two ends of the through hole, and the auxiliary frame body I is pressed tightly; the secondary frame assembly II also comprises a plurality of height adjusting assemblies II which are arranged on two sides of the secondary frame body II in an array manner; the structure of the height adjusting assembly II is completely the same as that of the height adjusting assembly I; a threaded rod of the second height adjusting assembly penetrates through a through hole formed in the second auxiliary frame body, and two nuts connected to the threaded rod of the second height adjusting assembly press the second auxiliary frame body tightly; the rear frame component also comprises a plurality of height adjusting components III which are arranged on two sides of the rear frame body in an array manner; the structure of the third height adjusting assembly is identical to that of the first height adjusting assembly, the threaded rod of the third height adjusting assembly penetrates through the through hole formed in the rear frame body, and the two nuts connected to the threaded rod of the third height adjusting assembly are tightly pressed on the rear frame body.

9. A screed machine according to any one of claims 1 to 7 wherein: and under the carrying or storage state, the first subframe assembly and the second subframe assembly are turned upwards to be arranged close to the main frame, and the two rear frame assemblies are turned downwards to be respectively close to the first subframe assembly and the second subframe assembly.