CN112453888A

CN112453888A - Power equipment assembly line

Info

Publication number: CN112453888A
Application number: CN202011251210.XA
Authority: CN
Inventors: 胡兵轩; 李明宇
Original assignee: Guangxi Tianyang Technology Development Co ltd
Current assignee: Shandong Aode Smart New Energy Co ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-03-09
Anticipated expiration: 2040-11-11
Also published as: CN112453888B

Abstract

The invention discloses an assembly line of electrical equipment, which is provided with a supporting mechanism, a supporting mechanism and a supporting mechanism, wherein the supporting mechanism comprises a supporting frame and a supporting beam arranged in the middle of the supporting frame; the conveying mechanism is arranged in the support frame through a support beam and comprises a material preparation section and a conveying section, and the material preparation section and the conveying section respectively comprise two groups of conveying frames arranged in parallel and a transition module arranged between the two sections; in the clamping mechanism, a lateral clamping module is movably arranged at one end of a conveying mechanism, a guide module is positioned at the other end of the conveying mechanism, a portal frame is movably connected to a conveying frame of a conveying section, and a height adjusting module is arranged between the conveying frames of the conveying section; the two groups of conveying frames have adjustable space and can be adapted to electric power equipment with different widths, the supporting plates and the guide wheels arranged in the conveying clamps are beneficial to alignment and conveying of the electric power equipment, and the clamping mechanisms are matched with the conveying frames to operate to compress and guide the electric power equipment in multiple directions, so that the feed assembling, compressing and conveying efficiency of the electric power equipment is greatly improved.

Description

Power equipment assembly line

Technical Field

The invention relates to the technical field of power equipment production lines, in particular to a power equipment assembly line.

Background

With the progress of modernization, electric power equipment has been applied in large scale. Power equipment's kind is many, including power distribution cabinet, wire and cable and power terminal etc., power equipment comprises multiunit spare part mostly, will constitute the part and assemble on the assembly line usually, carry again and carry out riveting fixed to riveting assembly line on, but the fixed of present production assembly line to constituting the part and carry unstably, lead to spare part to have great error in carrying and extrusion assembly process, lead to the qualification rate of production not high, for improving power equipment quality and efficiency at industrial production, put forward a kind of assembly line that can constitute the precision assembly of subassembly to power equipment now.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.

The invention is provided in view of the problems of the existing power equipment assembly line.

Therefore, the technical problem to be solved by the present invention is to provide an assembly line for power equipment aiming at product positioning accuracy and product diversification, and the purpose of the present invention is how to perform streamlined operations on the stock assembly and conveying process of power equipment.

In order to solve the technical problems, the invention provides the following technical scheme: an assembly line of power equipment comprises a supporting mechanism, a conveying mechanism and a clamping mechanism, wherein the supporting mechanism comprises a supporting frame and a supporting beam arranged in the middle of the supporting frame; the conveying mechanism is arranged in the supporting frame through the supporting beam and comprises a material preparation section and a conveying section, and the material preparation section and the conveying section respectively comprise two groups of conveying frames arranged in parallel and a transition module arranged between the two sections; and the clamping mechanism comprises a lateral clamping module, a gantry clamping module, a height adjusting module and a guide module, the lateral clamping module is movably arranged at one end of the conveying mechanism, the guide module is positioned at the other end of the lateral clamping module, the gantry is movably connected to the conveying frames of the conveying section, and the height adjusting module is arranged between the conveying frames of the conveying section.

As a preferable aspect of the assembly line of electric power equipment of the present invention, wherein: the conveying frame comprises guide plates which are symmetrically arranged up and down, chain wheels which are positioned at two ends of the guide plates, an annular chain which is meshed with the chain wheels to rotate, and a conveying clamp which is detachably connected to the annular chain; the guide plate is provided with a rack guide groove positioned in the middle and clamp wheel guide grooves positioned in the middle and side walls at two sides; the conveying clamp comprises a U-shaped plate, guide wheels positioned on two sides and the middle part of the inner cavity of the U-shaped plate, and a supporting plate positioned at the end part of the U-shaped plate.

As a preferable aspect of the assembly line of electric power equipment of the present invention, wherein: the two groups of conveying frames are divided into a fixed group and a movable group, and a mounting side plate is arranged on the side wall of a guide plate of the movable group; the two groups of conveying frames also comprise a driving unit, a width adjusting unit and a guide frame, the driving unit is arranged at the axle center of the chain wheel, the width adjusting unit is arranged at one side of the guide plate, and the guide frame is connected to the side wall of the guide plate above; the driving unit comprises a driving motor and a transmission shaft connected to an output shaft of the driving motor through a speed reducer, and the transmission shaft is connected to the axis position of the chain wheel; the width adjusting unit comprises a width adjusting motor and adjusting screw rods connected to the output shaft of the width adjusting motor through a coupler, and the adjusting screw rods are connected to the two groups of guide plates arranged in parallel; the guide frames are arranged on one sides of the two groups of conveying frames close to each other, and plastic guide wheels are arranged at the upper ends of the guide frames.

As a preferable aspect of the assembly line of electric power equipment of the present invention, wherein: the transition module is arranged on the support beam and comprises a transition guide rail, transition supports and connecting blocks, wherein the transition supports are connected to the transition guide rail in a sliding mode and are symmetrically arranged; the transition guide rail is perpendicular to the installation plane of the conveying frame, and the length of the transition guide rail is shorter than that of the support beam; the transition support includes two L templates that the symmetry set up, is located the transition wheel of keeping away from the side mutually of L template and set up in the transition leading wheel at L template top, one of them L template fixed connection in the tip of transition guide rail, another the L template pass through the connecting block in installation curb plate T links to each other.

As a preferable aspect of the assembly line of electric power equipment of the present invention, wherein: the lateral clamping module comprises a supporting plate, a guide rail, a rack, a clamping driving motor, a clamping block and a clamping sliding block, wherein the clamping driving motor, the clamping block and the clamping sliding block are connected to the supporting plate; the supporting plate is connected to the guide rail in a sliding mode through the clamping sliding block, a clamping driving gear is connected to an output shaft of the clamping driving motor, and the clamping driving gear is meshed with the rack to rotate; the guide rail and the rack are arranged in parallel and symmetrically and are respectively positioned on two sides of the conveying frame, one group of guide rail and rack is arranged on the side wall of the mounting side plate T, and the other group of guide rail and rack is arranged on the side wall of the supporting frame.

As a preferable aspect of the assembly line of electric power equipment of the present invention, wherein: the gantry clamping module comprises a movable guide rail, a gantry connected to the movable guide rail in a sliding manner, and a lifting unit and a clamping unit which are arranged in the gantry; the movable guide rails are fixedly connected to the outer walls of the two sides of the support frame; the lifting unit comprises a lifting plate, a limiting column, a lifting cylinder and an alignment adjusting part, the lifting plate is positioned in the middle of an inner cavity of the portal frame, the limiting column and the lifting cylinder are symmetrically distributed at two ends of the lifting plate, the limiting column penetrates through the lifting plate in a sliding manner, two ends of the limiting column are respectively fixed at the top and the bottom of the inner cavity of the portal frame, the lifting cylinder is installed on the lifting plate, a telescopic end of the lifting cylinder is fixed on a bottom plate of the portal frame, the alignment adjusting part comprises length limiting guide rails symmetrically fixed at the bottom of the lifting plate, a connecting plate connected to the length limiting guide rails in a sliding manner and a length adjusting cylinder fixed at the bottom of the lifting plate, and the telescopic end of the length adjusting cylinder is fixed on a side wall of the connecting; the clamping unit comprises a first clamping piece arranged on the connecting plate and a second extrusion piece arranged on the bottom plate of the portal frame; the first clamping piece comprises a first limit guide rail, a first clamping jaw and a first cylinder, wherein the first clamping jaw is connected to the first limit guide rail in a sliding mode, and the first cylinder is connected to the first clamping jaw; the second extrusion includes a second jaw and a second cylinder connected to the second jaw.

As a preferable aspect of the assembly line of electric power equipment of the present invention, wherein: the gantry clamping module further comprises a driving reset unit, and the driving reset unit comprises a gantry reset motor, a guide chain wheel and a driving chain, wherein the guide chain wheel is fixed on an output shaft of the gantry reset motor and on an output shaft of the driving motor in a conveying section, and the driving chain is meshed with the guide chain wheel to rotate; the guide chain wheel is positioned on the output shaft of the driving motor of the conveying section and is connected with the transmission shaft through an electromagnetic clutch; any section of the driving chain is connected with the side wall of the bottom of the portal frame.

As a preferable aspect of the assembly line of electric power equipment of the present invention, wherein: the height adjusting modules are provided with a plurality of groups, are distributed on the supporting beam at equal intervals and comprise mounting plates, servo electric cylinders fixed at the bottoms of the mounting plates, bearing plates connected with the telescopic ends of the servo electric cylinders, linear guide rails and fixed guide wheels fixed on the bearing plates, and movable guide wheels connected with the linear guide rails in a sliding manner; the loading board is located the top of mounting panel, and its both ends symmetry is provided with the guiding axle, linear guide perpendicular to the mounting plane of conveying frame.

As a preferable aspect of the assembly line of electric power equipment of the present invention, wherein: the guide module is symmetrically installed on two side walls of the top of the support frame through the connecting seat and comprises a guide wheel set and an adjusting cylinder, and the guide wheel set is fixed at the telescopic end of the adjusting cylinder.

As a preferable aspect of the assembly line of electric power equipment of the present invention, wherein: the input end of the support frame material preparation section is provided with an alignment plate, and the output end of the conveying section is provided with a guide roller.

The invention has the beneficial effects that:

the distance between the two groups of conveying frames in the conveying mechanism is adjustable, the conveying mechanism can be adapted to electric power equipment with different widths, the supporting plates and the guide wheels arranged in the conveying clamps are beneficial to alignment and conveying of the electric power equipment, the clamping mechanism operates in cooperation with the conveying frames to compress and guide the electric power equipment in multiple directions, and the precision of material preparation and assembly of the electric power equipment, the diversification of adapted products and the clamping and conveying efficiency are greatly improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

fig. 1 is a schematic view of the overall structure of an assembly line of electric power equipment according to the present invention.

Fig. 2 is a schematic structural view of a conveying frame of the assembly line of the power equipment.

Fig. 3 is a schematic diagram of a guide plate structure of the assembly line of the power equipment.

Fig. 4 is a schematic structural view of a conveying clamp of an assembly line of electrical equipment.

Fig. 5 is a schematic view of a conveying frame driving and width adjusting structure of the power equipment assembly line of the present invention.

Fig. 6 is a schematic view of a partially enlarged and guiding frame structure of the assembly line of the power equipment of the present invention.

Fig. 7 is a schematic structural diagram of a transition module of the assembly line of the power equipment of the present invention.

Fig. 8 is a schematic view of a partially enlarged and side jig module structure of an assembly line of electric power equipment according to the present invention.

FIG. 9 is a schematic view of a partially enlarged gantry clamping module of the assembly line of the power equipment of the present invention.

Fig. 10 is a schematic side bottom view of a gantry clamping module of the assembly line of electrical equipment of the present invention.

Fig. 11 is a schematic side plan view of a gantry clamping module of the power equipment assembly line of the present invention.

Fig. 12 is a schematic structural diagram of a partial amplification and driving reset unit of an assembly line of electric power equipment according to the present invention.

Fig. 13 is a schematic structural view of a height adjustment module of the assembly line of the power equipment of the present invention.

Fig. 14 is a schematic view of a partial enlarged and guided module structure of an assembly line of electric power equipment according to the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Furthermore, the present invention is described in detail with reference to the drawings, and in the detailed description of the embodiments of the present invention, the cross-sectional view illustrating the structure of the device is not enlarged partially according to the general scale for convenience of illustration, and the drawings are only exemplary and should not be construed as limiting the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

Example 1

Referring to fig. 1, for the first embodiment of the present invention, there is provided an assembly line for electrical equipment, the assembly line including a supporting mechanism 100, a conveying mechanism 200 and a clamping mechanism 300, wherein the supporting mechanism 100 includes a supporting frame 101, and a supporting beam 102 disposed at a middle portion of the supporting frame 101.

The conveying mechanism 200 is mounted in the support frame 101 through the support beam 102, and includes a material preparation section a and a conveying section B, and the material preparation section a and the conveying section B respectively include two groups of conveying frames 201 arranged in parallel and a transition module 202 arranged between the two sections.

And the clamping mechanism 300 comprises a lateral clamping module 301, a gantry clamping module 302, a height adjusting module 303 and a guiding module 304, wherein the lateral clamping module 301 is movably arranged at one end of the conveying mechanism 200, the guiding module 304 is positioned at the other end of the conveying mechanism, the gantry 302 is movably connected to the conveying frames 201 of the conveying section B, and the height adjusting module 303 is arranged between the conveying frames 201 of the conveying section B.

With reference to fig. 1, the supporting frame 101 of the supporting mechanism 100 is an outer frame part of the production line and may be made of aluminum profiles, while the supporting frame 101 is rectangular frame type, and a plurality of supporting beams 102 for supporting and reinforcing are installed inside the supporting frame 101, and the supporting beams 102 are also used for installing part of the components of the conveying mechanism 200 and the clamping mechanism 300; the conveying mechanism 200 is mainly used for conveying and line production of electric power equipment and is provided with a material preparation section A and a conveying section B, wherein the material preparation section A is used for assembling and conveying parts forming a main body part of the electric power equipment to a preset position, the parts are conveyed to the conveying section B after being assembled together, the conveying section B is matched with each module in the clamping mechanism 300 to further position and clamp the assembled electric power equipment, and then the electric power equipment is conveyed to the next step, two groups of conveying frames 201 are arranged in parallel in the material preparation section A and the conveying section B, and the conveying frames 201 between the two sections are transited through a transition module 202 so as to ensure that the preliminarily molded electric power equipment can be transited from the material preparation section A to the conveying section B stably; the clamping mechanism 300 is installed on the conveying frame 201 in a matching manner, wherein the lateral clamping module 301, the gantry clamping module 302 and the height adjusting module 303 are used for maintaining and clamping the state of each component of the power equipment, so that the requirement that the power equipment assembly output from the conveying section B can reach the next process can be met.

Example 2

Referring to fig. 2 to 6, a second embodiment of the present invention is different from the first embodiment in that: the conveying frame 201 comprises a guide plate 201a which is arranged symmetrically up and down, chain wheels 201b which are arranged at two ends of the guide plate 201a, an annular chain 201c which is meshed with the chain wheels 201b to rotate, and a conveying clamp 201d which is detachably connected to the annular chain 201 c.

The guide plate 201a is provided with a rack guide groove 201a-1 positioned in the middle part and clamp wheel guide grooves 201a-2 positioned in the middle part and the side walls at two sides; the conveying clamp 201d comprises a U-shaped plate 201d-1, guide wheels 201d-2 positioned at two sides and the middle part of the inner cavity of the U-shaped plate 201d-1 and a supporting plate 201d-3 positioned at the end part of the U-shaped plate 201 d-1.

The two groups of conveying frames 201 are divided into a fixed group and a movable group, and a mounting side plate T is arranged on the side wall of a guide plate 201a of the movable group; and, the two sets of the transfer racks 201 further include a driving unit 201e, a width adjusting unit 201f and a guide rack 201g, the driving unit 201e is disposed at the axial center of the sprocket 201b, the width adjusting unit 201f is disposed at one side of the guide plate 201a, and the guide rack 201g is connected to a side wall of the upper guide plate 201 a.

The driving unit 201e comprises a driving motor 201e-1 and a transmission shaft 201e-2 connected to an output shaft of the driving motor 201e-1 through a speed reducer, wherein the transmission shaft 201e-2 is connected to the axis position of the chain wheel 201 b; the width adjusting unit 201f comprises a width adjusting motor 201f-1 and an adjusting screw 201f-2 connected to an output shaft of the width adjusting motor 201f-1 through a coupler, and the adjusting screw 201f-2 is connected to two groups of guide plates 201a arranged in parallel; the guide frame 201g is disposed at one side of the two sets of the conveying frames 201 close to each other, and the upper end thereof is provided with a plastic guide wheel 201 g-1.

Compared with the embodiment 1, further, with reference to fig. 2, the conveying frame 201 is a rectangular parallelepiped, the frame is composed of upper and lower symmetrical guide plates 201a, it should be noted that a section bar for supporting is additionally installed between the upper and lower guide plates 201a, the end portions of the guide plates 201a are all rotatably installed with chain wheels 201b, the chain wheels 201b at four corners are connected in series through an annular chain 201c and synchronously rotate, in this way, the annular chain 201c can be kept to rotate circularly, conveying clamps 201d are uniformly distributed on the annular chain 201b and used for attaching and assembling electric equipment, so that the conveying is limited and pushed by the rotation of the annular chain 201c, and the conveying clamps 201b are detachably connected to the outer ring side wall of the annular chain 201 b.

Specifically, referring to fig. 3, different guide grooves are formed in the guide plate 201a, wherein the rack guide groove 201a-1 is adapted to the endless chain 201c for placing and guiding the endless chain 201 c; and the guide groove 201a-2 of the clamp wheel is matched with the guide wheel 201d-2 in the conveying clamp 201d and used for guiding and limiting the conveying clamp 201d, so that the conveying clamp 201d can be kept smooth and stable in the process of moving along with the annular chain 201 c. In the conveying clamp 201d, with reference to fig. 4, the guide wheels 201d-2 are installed in the middle of the U shape of the U-shaped plate 201d-1 and on two sides of the inner cavity and are matched with the positions and the number of the clamp wheel guide grooves 201a-2, the guide wheels 201d-2 are used for keeping the stable conveying of the endless chain 201c, and need to be the supporting plates 201d-3 located at the end portions of the U-shaped plate 201d-1, the two groups of conveying frames 201 are arranged in parallel, and the supporting plates 201d-3 are located on the sides close to each other and are used for supporting and limiting the bottom of the assembled power equipment.

Further, referring to fig. 5, between two sets of parallel transmission frames 201, one set is used as a fixed set and the other set is used as a movable set, so as to adjust the distance between the two sets to adapt to electric power equipment with different widths; the conveying frame 201 of the fixed group is installed near the side wall of the supporting frame 101, while the movable group is installed on the supporting beam 102, and the side wall far from the fixed group is fixedly connected with an installation side plate T for installing the related components of the transition module 202 and the lateral clamping module 301. The movable group and the fixed group keep a certain parallel distance through the width adjusting unit 201f, and the two groups keep synchronous movement through the driving unit 201 e; and the guide frame 201g is used for moving and guiding the assembled electric equipment.

Specifically, referring to fig. 6, the transmission shaft 201e-2 of the driving unit 201e is connected to the sprockets 201b of the two sets of transmission frames 201, and preferably, the transmission shaft 201e-2 used can be in a spline transmission shaft pattern at the position of the movable set of sprockets 201b, so that the two sets of transmission frames 201 can still rotate synchronously while the distance between the two sets of transmission frames is changed. It should be noted that, of the four sets of sprockets 201b, one set may be selected as a driving wheel, and the rest may be selected as a driven wheel. At least two adjusting screw rods 201f-2 in the width adjusting unit 201f are arranged along the guide plate 201a and used for keeping the stability during width adjustment, and the two groups of conveying frames 201 are always kept in a parallel state, preferably, the two adjusting screw rods 201f-2 synchronously rotate through a belt pulley and a belt; both the drive motor 201e-1 and the width adjustment motor 201f-1 are used to provide power. Referring to fig. 6, the guide frame 201g may be fixed on the side wall of the guide plate 201a and located at a side where the fixed group and the movable group transmission frame 201 are close to each other, and the plastic guide wheel 201g-1 may be in rotational contact with the side wall of the bottom of the assembled power equipment to help the power equipment to move and guide during transmission.

The rest of the structure is the same as that of embodiment 1.

Example 3

Referring to fig. 7, a third embodiment of the present invention is different from the second embodiment in that: transition module 202 is mounted on support beam 102 and includes a transition rail 202a, a symmetrically disposed transition bracket 202b slidably connected to transition rail 202a, and a connection block 202 c.

The transition guide 202a is perpendicular to the installation plane of the transfer frame 201 and has a length shorter than that of the support beam 102; the transition support 202b comprises two L-shaped plates 202b-1 which are symmetrically arranged, a transition wheel 202b-2 which is positioned at the far side of the L-shaped plate 202b-1 and a transition guide wheel 202b-3 which is arranged at the top of the L-shaped plate 202b-1, wherein one L-shaped plate 202b-1 is fixedly connected to the end part of the transition guide rail 202a, and the other L-shaped plate 202b-1 is connected to the mounting side plate T through a connecting block 202 c.

Further to embodiment 2, in conjunction with fig. 7, the transition module 202 is mounted on the support beam 102 by a bottom bracket to maintain a height matching the conveying surface of the conveying frame 201; the transition guide rail 202a is arranged perpendicular to the running plane of the conveying frame 201 and used for sliding and limiting the moving range of the transition support 202 b; and the connection block 202c is used to fixedly connect the transition support 202b corresponding to the movable group transfer rack 201 thereto.

Specifically, the transition support 202B is composed of two sets of L-shaped plates 202B-1 arranged symmetrically, and a transition wheel 202B-2 and a transition guide wheel 202B-3 connected with the two sets of L-shaped plates, wherein the two sets of L-shaped plates 202B-1 correspond to the transmission frames 201 of the fixed set and the movable set, and the two sets of L-shaped plates 202B-1 are connected with the mounting side plate T through the connecting block 202c for the purpose of keeping the distance between the two sets of L-shaped plates 202B-1 matched with the distance between the two sets of transmission frames 201 so as to keep the assembled electric equipment with different width specifications transitionally transmitted from the material preparation section a to the transmission section B.

The rest of the structure is the same as that of embodiment 2.

Example 4

Referring to fig. 8, a fourth embodiment of the present invention is different from the third embodiment in that: the lateral clamping module 301 comprises a supporting plate 301a, a guide rail 301b, a rack 301c, a clamping drive motor 301d, a clamping block 301e and a clamping slider 301f, wherein the clamping drive motor 301d, the clamping block 301e and the clamping slider 301f are connected to the supporting plate 301 a.

The supporting plate 301a is connected to the guide rail 301b in a sliding manner through a clamping slider 301f, a clamping driving gear 301d-1 is connected to an output shaft of the clamping driving motor 301d, and the clamping driving gear 301d-1 is meshed with the rack 301c to rotate.

The guide rails 301b and the racks 301c are symmetrically arranged in two sets in parallel, and are respectively located on two sides of the conveying frame 301, one set is installed on the side wall of the installation side plate T, and the other set is installed on the side wall of the supporting frame 101.

Compared with embodiment 3, further, as shown in fig. 8, the pallet 301a in the lateral clamping module 301 is a bearing plate of the clamping driving motor 301d, the clamping block 301e and the clamping slider 301f, which slides in meshing with the guide rail 301b through the clamping slider 301f, and rotates in meshing with the rack 301c through the clamping driving gear 301d-1, so that the lateral clamping module 301 can keep moving synchronously with the annular chain 201c along with the gear rotation under the driving of the clamping driving motor 301d, and the purpose is to enable the lateral clamping module 301 to continuously clamp the assembled electric equipment along with the transmission of the transmission rack 201.

Specifically, the guide rail 301b and the rack 301c are arranged in parallel and have the same length, and are matched with the length of the conveying frame 201 of the stock preparation section a, the guide rail 301b and the rack 301c are respectively installed on two sides of the assembled power equipment, except that one group of conveying frames 201 corresponding to the fixed group are installed on the side wall of the supporting frame 101, the installation of the pallet 301a and the related components takes the actual installation environment as position adjustment, the side wall of the conveying frame 201 of the movable group is provided with an installation side plate T which can keep synchronous position adjustment with the conveying frame 201 of the movable group, so that the other group of pallets 301a and the related components are installed on the side wall, and the pallets 301a on two sides are driven to keep synchronous operation with the annular chain 201 c. The clamping blocks 301e are mounted on the supporting plate 301a, the clamping ends of the clamping blocks 301e on the two sides point to the assembled power equipment, preferably, the clamping blocks 301e on the movable group conveying frame 201 can adopt the combination of an air cylinder and a push block, so that the clamping blocks 301e can have a better contact effect with the side wall of the assembled power equipment, and looseness is prevented from occurring in the process of pressing and preparing materials.

The rest of the structure is the same as that of example 3.

Example 5

Referring to fig. 9 to 11, a fifth embodiment of the present invention is different from the fourth embodiment in that: the gantry clamping module 302 includes a moving rail 302a, a gantry 302b slidably coupled to the moving rail 302a, a lifting unit 302c disposed in the gantry 302b, and a clamping unit 302 d.

Wherein, the movable guide rails 302a are fixedly connected to the outer walls of the two sides of the support frame 101; the lifting unit 302c comprises a lifting plate 302c-1, a limiting column 302c-2, a lifting cylinder 302c-3 and an alignment adjusting piece 302c-4, wherein the lifting plate 302c-1 is located in the middle of an inner cavity of the portal frame 302b, the limiting column 302c-2 and the lifting cylinder 302c-3 are symmetrically distributed at two ends of the lifting plate 302c-1, the limiting column 302c-2 penetrates through the lifting plate 302c-1 in a sliding mode, two ends of the limiting column 302c-2 are fixed to the top and the bottom of the inner cavity of the portal frame 302b respectively, the lifting cylinder 302c-3 is installed on the lifting plate 302c-1, and a telescopic end of the lifting cylinder is fixed to a bottom plate of the portal frame 302 b. The alignment adjusting member 302c-4 comprises length-limiting guide rails 302c-41 symmetrically fixed at the bottom of the lifting plate 302c-1, connecting plates 302c-42 slidably connected to the length-limiting guide rails 302c-41, and length-adjusting cylinders 302c-43 fixed at the bottom of the lifting plate 302c-1, wherein the telescopic ends of the length-adjusting cylinders 302c-43 are fixed on the side walls of the connecting plates 302 c-42.

The clamping unit 302d comprises a first clamping piece 302d-1 arranged on the connecting plate 302c-42 and a second extrusion piece 302d-2 arranged on the bottom plate of the portal frame 302 b; the first clamping piece 302d-1 comprises a first limit guide rail 302d-11, a first clamping jaw 302d-12 connected to the first limit guide rail 302d-11 in a sliding mode and a first air cylinder 302d-13 connected to the first clamping jaw 302 d-12; second extrusion 302d-2 includes second jaw 302d-21 and second cylinder 302d-21 coupled to second jaw 302 d-21.

Compared with the embodiment 4, further, with reference to fig. 9, the gantry clamping module 302 is mainly used for aligning and pressing the electrical equipment formed by combining each profile and the copper bar, and is matched with the conveying frame 201 to be conveyed to the next process, wherein the moving guide rail 302a is used for guiding and limiting the gantry 302b, and the lifting unit 302c is used for lifting the first clamping member 302d-1 in the clamping unit 302d, so that the assembled electrical equipment can be conveyed to the other side of the gantry 302b, and thus can be aligned and sufficiently pressed by the clamping unit 302d, and in the pressing process, downward pressure can be applied to the assembled electrical equipment profile, and the pressing effect is improved.

Specifically, in order to keep the gantry 302B movable as a whole, the movable rails 302a are mounted on the outer walls of the two sides of the supporting frame 101, and the length of the movable rails 302a is the movable range of the gantry 302B, and is shorter than the length of the conveying section B conveying frame 201.

The limiting column 302c-2, the lifting cylinder 302c-3 and the alignment adjusting piece 302c-4 in the lifting unit 302c are directly connected with the lifting plate 302c-1, wherein the limiting column 302c-2 is vertical and penetrates through the lifting plate 302c-1 to be installed and used for limiting and guiding the lifting plate 302 c-1; the lifting cylinder 302c-3 is connected with the lifting plate 302c-1 and is used for driving the lifting plate 302c-1 to move up and down in the portal frame 302 b; referring to fig. 10, the alignment adjusting member 302c-4 is installed in the lifting plate 302c-1, and the length adjusting cylinder 302c-43 is used to provide power required for adjustment by the moving direction and the moving distance of the length limiting guide rail 302c-41 sliding the limiting connection plate 302 c-42.

Further, in conjunction with fig. 9 and 11, the clamping unit 302d is used for pressing, so that the profiles of the assembled power equipment are in close contact with each other; in the first clamping piece 302d-1, first clamping jaws 302d-12 are symmetrically and slidably mounted on a first limiting guide rail 302d-11, the first clamping jaws 302d-12 are respectively driven by first air cylinders 302d-13 corresponding to the first clamping jaws 302d-12, and the specific connecting positions of the first air cylinders 302d-13 can be reasonably distributed according to actual working conditions; the assembled electrical equipment profile is pressed by the lateral approach of the two sets of first clamping jaws 302 d-12. The second extrusion pieces 302d-2 are positioned on the bottom plate of the portal frame 302b, and a plurality of groups can be arranged along the length direction of the support frame 101 so as to adapt to the pressing effect in the assembly process of longer power equipment; the second extrusion 302d-2 is spaced from the first clamping member 302d-1 to provide multiple segments of extrusion along the length of the power device for uniform compression. In second presser 302d-2, the movement of second jaw 302d-21 is pushed by second cylinder 302 d-21. It should be noted that the first and second jaws 302d-12 and 302d-21 have a running pitch that matches the pitch of the transfer rack 201 between the fixed and movable sets.

The rest of the structure is the same as that of example 4.

Example 6

Referring to fig. 12, a sixth embodiment of the present invention, which is different from the fifth embodiment, is: the gantry clamping module 302 further comprises a drive resetting unit 302e, and the drive resetting unit 302e comprises a gantry resetting motor 302e-1, a guide chain wheel 302e-2 fixed on an output shaft of the gantry resetting motor 302e-1 and an output shaft of the conveying section drive motor 201e-1, and a drive chain 302e-3 meshed and rotated on the guide chain wheel 302 e-2.

The guide chain wheel 302e-2 positioned on the output shaft of the conveying section driving motor 201e-1 is connected with the transmission shaft 201e-2 through the electromagnetic clutch 302 e-11; any one of the lengths of drive chain 302e-3 is connected to the bottom side wall of gantry 302 b.

Further, compared to embodiment 5, in conjunction with fig. 12, the gantry 302b is controlled and driven by a driving and resetting unit 302 e; specifically, the gantry 302b is driven to advance and return by two motors, when the gantry 302b advances along with the conveying section conveying frame 201, the gantry 302b is driven synchronously by a driving unit of the conveying section conveying frame 201, in the process, the electromagnetic clutch 302e-11 is closed, the driving chain 302e-3 keeps synchronous motion with the transmission shaft 201e-2 through the guide chain wheel 302e-2, in the returning process of the gantry 302b, the transmission shaft 201e-2 is separated from the guide chain wheel 302e-2 by the electromagnetic clutch 302e-11, the gantry resetting motor 302e-1 rotates, and the driving guide chain wheel 302e-2 rotates to drive the gantry 302b to move reversely.

Preferably, the gantry resetting motor 302e-1 is installed outside the support frame 101 and used for providing driving power; the purpose of using the driving motor 201e-1 of the conveying section conveying frame 201 as the forward driving force of the gantry 302b is to keep the gantry 302b and the conveying frame 201 in speed synchronization, so as to avoid the situation that the gantry 302b is dislocated in the process of pressing and assembling the power equipment due to speed difference, thereby affecting the assembling precision of the power equipment. From the above description, the transmission shaft 201e-2 of the conveying section transmission rack 201 is in the form of a spline transmission shaft, so as to maintain the output efficiency of the transmission shaft 201e-2 in different adjustment states.

The driving reset unit 302e is only used for providing the driving force for resetting the gantry 302b, and the process of switching the power output of the conveying section driving motor 201e-1 and the driving reset unit 302e is realized by the electromagnetic clutch 302 e-11.

The rest of the structure is the same as that of example 5.

Example 7

Referring to fig. 13, a seventh embodiment of the present invention, which is different from the sixth embodiment, is: the height adjusting modules 303 are provided with a plurality of groups, which are distributed on the support beam 102 at equal intervals, and each group includes a mounting plate 303a, a servo electric cylinder 303b fixed at the bottom of the mounting plate 303a, a bearing plate 303c connected to the telescopic end of the servo electric cylinder 303b, a linear guide rail 303d and a fixed guide wheel 303e fixed on the bearing plate 303c, and a movable guide wheel 303f slidably connected to the linear guide rail 303 d.

The bearing plate 303c is located above the mounting plate 303a, and two ends of the bearing plate 303c are symmetrically provided with guide shafts 303c-1, and the linear guide rails 303d are perpendicular to the mounting plane of the conveying frame 201.

Compared with the embodiment 6, further, as shown in fig. 13, the height adjusting module 303 is mainly used for providing an upward clamping force for the assembled electrical equipment during conveying in the conveying section, and providing an axial pressing force for the electrical equipment by matching with the gantry 302 b; specifically, because the bottom of the height adjusting module 303 is fixedly installed, a plurality of groups need to be arranged at equal intervals, wherein the installation plate 303a is fixed, the servo electric cylinder 303b provides a lifting driving force to push the bearing plate 303c to displace in the vertical direction so as to achieve the required lifting height; and the fixed guide wheel 303e and the movable guide wheel 303f on the bearing plate 303c are used for rolling contact with the bottom side wall of the power equipment, and the movable guide wheel 303f can slide on the linear guide rail 303d to adjust the distance between the fixed guide wheel 303e and the movable guide wheel 303f to adapt to the distance change between the transmission frames 201.

Preferably, guide shafts 303c-1 are installed at the bottom of the mounting plate 303a and on both sides of the servo cylinder 303b to keep the bearing plate 303c stably raised or lowered.

The rest of the structure is the same as that of example 6.

Example 8

Referring to fig. 14, an eighth embodiment of the present invention, which is different from the seventh embodiment, is: the guiding module 304 is symmetrically installed on two sidewalls of the top of the supporting frame 100 through a connecting seat, and includes a guiding wheel set 304a and an adjusting cylinder 304b, and the guiding wheel set 304a is fixed on the telescopic end of the adjusting cylinder 304 b.

Compared with the embodiment 7, further, the guiding module 304 is located on the supporting frame 100 of the conveying section, and is used for guiding out the assembled power equipment output from the conveying section, and entering the next process; the adjusting cylinder 304b provides driving force for the guide wheel set 304a and keeps the guide wheel set 304a smooth; preferably, guide rods for guiding are installed at both sides of the guide wheel set 304a, and the guide rods penetrate through the connection base, as shown in the drawing.

The rest of the structure is the same as that of example 7.

Example 9

Referring to fig. 8 and 14, a ninth embodiment of the present invention, which is different from the eighth embodiment, is: an aligning plate 101a is provided at an input end of the stock preparation section a of the supporting frame 101, and a guide roller 101B is provided at an output end of the conveying section B thereof.

Compared with the embodiment 8, further, when the alignment plate 101a disposed in the material preparation section a of the support frame 101 is used for preliminary alignment during the material preparation assembly of the power equipment, preferably, the alignment plate 101a and the lateral clamping module 301 may be connected into a whole, that is, during the conveying process of the material preparation section a, the copper bar and the shell profiles may be always in an aligned and stable state, and when the lateral clamping module 301 is reset, the copper bar and the shell profiles return to the initial position along with the lateral clamping module, and then the operation is repeated. On the other hand, in the conveying section B of the support frame 101, since the output end of the electric power equipment is assembled, the guide rollers 101B are provided at the end portions thereof, which is advantageous for guiding the electric power equipment out of the assembly line and then entering the next process.

The rest of the structure is the same as that of example 8.

In the operation process, the distance between the conveying frames 201 is adjusted according to the specification and the size of the electric power equipment to be assembled, and the width adjusting motor 201f-1 drives the adjusting screw rod 201f-2 to rotate, so that the distance between the conveying frames 201 of the movable group and the fixed group is changed, and the distance between the supporting plates 201d-3 at two sides is matched with the specification and the size of the electric power equipment to be assembled; and the fixed guide wheel 303e and the movable guide wheel 303f in the height adjustment module 303 are adjusted by the corresponding width and height. Then correspondingly arranging the copper bar, the U-shaped section and the S-shaped section which are assembled parts of the power equipment, placing the S-shaped section on the left side and the right side of the copper bar, and placing the U-shaped section on the upper side and the lower side of the copper bar, so that one end of the copper bar is abutted against the alignment plate 101 a; the clamping block 301e in the lateral clamping module 301 is adjusted to enable the end portion of the clamping block to abut against the side wall of the S-shaped section, after the abutting is completed, the driving unit 201e can be started to drive the transmission shaft 201e-2 to rotate, the transmission frame 201 operates, the assembled power equipment is pushed to move towards the conveying section B, in the conveying process, the bottom side wall of the assembled power equipment is sequentially contacted with the distributed guide frames 201g, and when the assembled power equipment is conveyed to the transition module 202, the bottom side wall of the assembled power equipment is sequentially separated from the material preparation section to enter the conveying section B under the guiding action of the transition wheels 202B-2 and the transition guide wheels 202B-3.

In the process of entering the conveying section B, the lifting unit 302c in the portal frame 302B acts, the lifting cylinder 302c-3 drives the lifting plate 302c-1 to move towards the upper part of the lifting frame 302B, so that the assembled electric equipment can be moved to the other end thereof through the bottom of the gantry 302b, when the power equipment moves to the first clamping jaw 302d-12 of the gantry 302b under the delivery of the transfer frame 201, the lifting cylinder 302c-3 is again actuated to lower the lifting frame 302b, adapting the height of the assembled electrical equipment, and the electrical devices are aligned, and the corresponding first and second cylinders 302d-13 and 302d-21 are activated, the first clamping jaws 302d-12 and the groups of the second clamping jaws 302d-21 are close to each other, and the assembled power equipment is pressed tightly, so that all parts can be fully combined; and moves to the output end under the driving action of the transmission frame 201, in the process, the side wall of the bottom of the assembled electric equipment is in rotating contact with a fixed guide wheel 303e and a movable guide wheel 303f in the height adjusting module 303, and has an upward pressing force on a U-shaped profile at the bottom of the assembled electric equipment, when the transmission frame 201 pushes the assembled electric equipment to the guide module 304, an electromagnetic clutch 302e-11 acts to disconnect a transmission shaft 201e-2 at the transmission end B from a guide chain wheel 302e-2, a gantry resetting motor 302e-1 is started, and the gantry 302B is reset to an initial position through the driving guide chain wheel 302e-2 and the driving guide chain 302e-3 to enter the transmission work of the next assembled electric equipment. When the assembled electric equipment enters the guide module 304, the adjusting cylinder 304B is started, so that the guide wheel set 304a is in rolling contact with the side wall of the S-shaped material, and the electric equipment is pushed out from the conveying section B through the guide roller 101c under the pushing of the conveying frame 201 to enter the next process.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims

1. An electrical equipment assembly line which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the supporting mechanism (100) comprises a supporting frame (101) and a supporting beam (102) arranged in the middle of the supporting frame (101);

the conveying mechanism (200) is arranged in the supporting frame (101) through the supporting beam (102) and comprises a material preparation section (A) and a conveying section (B), and the material preparation section (A) and the conveying section (B) respectively comprise two groups of conveying frames (201) arranged in parallel and a transition module (202) arranged between the two sections; and the number of the first and second groups,

the clamping mechanism (300) comprises a lateral clamping module (301), a gantry clamping module (302), a height adjusting module (303) and a guide module (304), wherein the lateral clamping module (301) is movably arranged at one end of the conveying mechanism (200), the guide module (304) is arranged at the other end of the lateral clamping module, the gantry (302) is movably connected to a conveying frame (201) of the conveying section (B), and the height adjusting module (303) is arranged between the conveying frames (201) of the conveying section (B).

2. The electrical equipment assembly line of claim 1, wherein: the conveying frame (201) comprises guide plates (201a) which are symmetrically arranged up and down, chain wheels (201b) which are positioned at two ends of the guide plates (201a), an annular chain (201c) which is meshed with the chain wheels (201b) to rotate, and conveying clamps (201d) which are detachably connected to the annular chain (201 c);

the guide plate (201a) is provided with a rack guide groove (201a-1) positioned in the middle of the guide plate and clamp wheel guide grooves (201a-2) positioned in the middle of the guide plate and on the side walls of two sides of the guide plate;

the conveying clamp (201d) comprises a U-shaped plate (201d-1), guide wheels (201d-2) positioned on two sides and the middle of the inner cavity of the U-shaped plate (201d-1), and supporting plates (201d-3) positioned at the end parts of the U-shaped plate (201 d-1).

3. The electrical equipment assembly line of claim 2, wherein: the two groups of conveying frames (201) are divided into a fixed group and a movable group, and a mounting side plate (T) is arranged on the side wall of a guide plate (201a) of the movable group; and the number of the first and second groups,

the two groups of conveying frames (201) further comprise a driving unit (201e), a width adjusting unit (201f) and a guide frame (201g), the driving unit (201e) is arranged at the axle center of the chain wheel (201b), the width adjusting unit (201f) is arranged at one side of the guide plate (201a), and the guide frame (201g) is connected to the side wall of the guide plate (201a) above;

the driving unit (201e) comprises a driving motor (201e-1) and a transmission shaft (201e-2) connected to an output shaft of the driving motor (201e-1) through a speed reducer, wherein the transmission shaft (201e-2) is connected to the axis position of the chain wheel (201 b);

the width adjusting unit (201f) comprises a width adjusting motor (201f-1) and an adjusting screw rod (201f-2) connected to an output shaft of the width adjusting motor (201f-1) through a coupler, and the adjusting screw rod (201f-2) is connected to two groups of guide plates (201a) which are arranged in parallel;

the guide frames (201g) are arranged on one sides of the two groups of the conveying frames (201) close to each other, and plastic guide wheels (201g-1) are arranged at the upper ends of the guide frames.

4. The electrical equipment assembly line of claim 3, wherein: the transition module (202) is mounted on the support beam (102) and comprises a transition guide rail (202a), transition brackets (202b) which are connected to the transition guide rail (202a) in a sliding mode and are symmetrically arranged, and connecting blocks (202 c);

the transition guide rail (202a) is perpendicular to the installation plane of the conveying frame (201) and has a length shorter than that of the support beam (102);

the transition support (202b) comprises two L-shaped plates (202b-1) which are symmetrically arranged, a transition wheel (202b-2) which is positioned on the far side of the L-shaped plate (202b-1) and a transition guide wheel (202b-3) which is arranged at the top of the L-shaped plate (202b-1), wherein one L-shaped plate (202b-1) is fixedly connected to the end part of the transition guide rail (202a), and the other L-shaped plate (202b-1) is connected with the mounting side plate (T) through a connecting block (202 c).

5. The electrical equipment assembly line of claim 3 or 4, wherein: the lateral clamping module (301) comprises a supporting plate (301a), a guide rail (301b), a rack (301c), a clamping driving motor (301d), a clamping block (301e) and a clamping slide block (301f), wherein the clamping driving motor (301d), the clamping block (301e) and the clamping slide block (301f) are connected to the supporting plate (301 a);

the supporting plate (301a) is connected to the guide rail (301b) in a sliding mode through the clamping slide block (301f), a clamping driving gear (301d-1) is connected to an output shaft of the clamping driving motor (301d), and the clamping driving gear (301d-1) is meshed with the rack (301c) to rotate;

the guide rails (301b) and the racks (301c) are arranged in parallel and symmetrically and are located on two sides of the conveying frame (301), one group of the guide rails and the racks is installed on the side wall of the installation side plate (T), and the other group of the guide rails and the racks is installed on the side wall of the supporting frame (101).

6. The electrical equipment assembly line of claim 5, wherein: the gantry clamping module (302) comprises a moving guide rail (302a), a gantry (302b) connected to the moving guide rail (302a) in a sliding manner, a lifting unit (302c) arranged in the gantry (302b) and a clamping unit (302 d);

the moving guide rail (302a) is fixedly connected to the outer walls of two sides of the support frame (101);

the lifting unit (302c) comprises a lifting plate (302c-1), a limiting column (302c-2), a lifting cylinder (302c-3) and an alignment adjusting piece (302c-4), the lifting plate (302c-1) is located in the middle of an inner cavity of the portal frame (302b), the limiting column (302c-2) and the lifting cylinder (302c-3) are symmetrically distributed at two ends of the lifting plate (302c-1), the limiting column (302c-2) penetrates through the lifting plate (302c-1) in a sliding mode, two ends of the limiting column (302c-2) are respectively fixed to the top and the bottom of the inner cavity of the portal frame (302b), the lifting cylinder (302c-3) is installed on the lifting plate (302c-1), a telescopic end of the lifting column is fixed to a bottom plate of the portal frame (302b), and the alignment adjusting piece (302c-4) comprises a lifting plate (302c-1) and an alignment adjusting piece (302c-4) which is symmetrically fixed to The length limiting guide rail (302c-41), a connecting plate (302c-42) connected to the length limiting guide rail (302c-41) in a sliding mode, and a length adjusting cylinder (302c-43) fixed to the bottom of the lifting plate (302c-1), wherein the telescopic end of the length adjusting cylinder (302c-43) is fixed to the side wall of the connecting plate (302 c-42);

the clamping unit (302d) comprises a first clamping piece (302d-1) arranged on the connecting plate (302c-42) and a second pressing piece (302d-2) arranged on the bottom plate of the gantry (302 b); wherein,

the first clamping piece (302d-1) comprises a first limit guide rail (302d-11), a first clamping jaw (302d-12) connected to the first limit guide rail (302d-11) in a sliding mode, and a first air cylinder (302d-13) connected to the first clamping jaw (302 d-12);

the second extrusion (302d-2) includes a second jaw (302d-21) and a second cylinder (302d-21) connected to the second jaw (302 d-21).

7. The electrical equipment assembly line of claim 6, wherein: the gantry clamping module (302) further comprises a driving reset unit (302e), and the driving reset unit (302e) comprises a gantry reset motor (302e-1), a guide chain wheel (302e-2) fixed on an output shaft of the gantry reset motor (302e-1) and on an output shaft of the driving motor (201e-1) in a conveying section, and a driving chain (302e-3) meshed and rotated on the guide chain wheel (302 e-2);

the guide chain wheel (302e-2) positioned on the output shaft of the driving motor (201e-1) of the conveying section is connected with the transmission shaft (201e-2) through an electromagnetic clutch (302 e-11);

any section of the driving chain (302e-3) is connected with the bottom side wall of the portal frame (302 b).

8. The electrical equipment assembly line of any one of claims 1, 3, 4 and 7, wherein: the height adjusting modules (303) are provided with a plurality of groups, are distributed on the supporting beam (102) at equal intervals and comprise mounting plates (303a), servo electric cylinders (303b) fixed at the bottoms of the mounting plates (303a), bearing plates (303c) connected to telescopic ends of the servo electric cylinders (303b), linear guide rails (303d) and fixed guide wheels (303e) fixed on the bearing plates (303c), and movable guide wheels (303f) connected to the linear guide rails (303d) in a sliding manner;

the bearing plate (303c) is located above the mounting plate (303a), guide shafts (303c-1) are symmetrically arranged at two ends of the bearing plate, and the linear guide rail (303d) is perpendicular to a mounting plane of the conveying frame (201).

9. The electrical equipment assembly line of any one of claims 1, 3, 4 and 7, wherein: the guide module (304) is symmetrically installed on two side walls of the top of the support frame (100) through a connecting seat and comprises a guide wheel set (304a) and an adjusting cylinder (304b), and the guide wheel set (304a) is fixed at the telescopic end of the adjusting cylinder (304 b).

10. The electrical equipment assembly line of any one of claims 1, 3, 4 and 7, wherein: an aligning plate (101a) is arranged at the input end of the material preparing section (A) of the supporting frame (101), and a guide roller (101B) is arranged at the output end of the conveying section (B).