阅读说明：本技术 一种板块物料的传送机构 (Conveying mechanism for plate materials ) 是由 汤美林 王罡 彭灿 梁迅 于 2019-11-15 设计创作，主要内容包括：本发明公开了一种板块物料的传送机构,包括驱动装置、定位装置和至少两个支撑座,所述支撑座上转动设有转轴,各转轴并排设置,各转轴的第一端分别与驱动装置传动相连,各转轴的第二端之间传动连有至少两组第一皮带,各组第一皮带的上游和定位装置对接。对于转轴、支撑座的加工精度要求低,安装方便,安装误差小,更换第一皮带非常方便,输送速度均匀稳定。本发明应用于物料传输设备领域。(The invention discloses a plate material conveying mechanism which comprises a driving device, a positioning device and at least two supporting seats, wherein rotating shafts are rotatably arranged on the supporting seats, the rotating shafts are arranged side by side, the first end of each rotating shaft is respectively connected with the driving device in a transmission manner, at least two groups of first belts are connected between the second ends of the rotating shafts in a transmission manner, and the upstream of each group of first belts is butted with the positioning device. The requirement on the machining precision of the rotating shaft and the supporting seat is low, the installation is convenient, the installation error is small, the first belt is very convenient to replace, and the conveying speed is uniform and stable. The invention is applied to the field of material conveying equipment.)

1. The utility model provides a transport mechanism of slab material, its characterized in that includes drive arrangement, positioner and two at least supporting seats, be equipped with the pivot on the supporting seat, each pivot sets up side by side, and the first end difference rotating turret of each pivot is established on the supporting seat that corresponds, and the first end of each pivot links to each other with the drive arrangement transmission respectively, and the transmission even has at least two sets of first belts between the second end of each pivot, and the upper reaches and the positioner butt joint of each first belt of group.

2. The plate material conveying mechanism according to claim 1, wherein the number of the supporting seats is at least three, two rotating shafts are rotatably provided on one supporting seat in the middle, at least two sets of first belts are connected to one rotating shaft and the rotating shaft on the adjacent supporting seat, two sets of second belts are connected between the other rotating shaft and the rotating shaft on the adjacent supporting seat, the upstream of the second belts is in butt joint with the downstream of the first belts, and a detection station is provided between the first belts and the second belts.

3. The plate material conveying mechanism according to claim 2, further comprising a fixing frame, wherein the fixing frame is fixedly arranged;

still be equipped with the bearing roller on first belt and the second belt, the bearing roller is fixed on the mount, the bearing roller is tangent with the inboard of first belt or the inboard of second belt.

4. The plate material conveying mechanism of claim 2, wherein the first belt and the second belt are both round belts.

5. The plate material conveying mechanism according to claim 2, wherein the supporting seat comprises a seat body, a bearing is embedded in the seat body, a step is formed between the first end of the rotating shaft and the middle part of the rotating shaft, the diameter of the first end of the rotating shaft is smaller than the inner diameter of the bearing, the diameter of the middle part of the rotating shaft is larger than the inner diameter of the bearing, the first end of the rotating shaft passes through the bearing and then is connected with a fixing ring, and the rotating shaft is locked on the seat body through the fixing ring;

the second end of pivot is equipped with the belt mounting groove, and each pivot passes through the belt mounting groove and links to each other with first belt or second belt transmission.

6. The plate material conveying mechanism according to claim 1, further comprising a bottom plate, wherein the supporting seat is provided on the bottom plate;

the positioning device comprises a first adjusting plate, a second adjusting plate and two mounting plates, wherein the mounting plates are vertically arranged on the bottom plate, the two mounting plates are parallel to each other, the same ends of the two mounting plates are butted with the upstream of the first belt, and a screw rod and a sliding rod are connected between the two mounting plates; first regulating plate and second regulating plate are parallel to each other, it is equipped with left-handed nut to inlay on the first regulating plate, it is equipped with right-handed nut to inlay on the second regulating plate, the lead screw wears to establish on first regulating plate through left-handed nut, the lead screw still wears to establish on the second regulating plate through right-handed nut, the lead screw is equipped with the first in command, first regulating plate and second regulating plate slip card respectively establish on the slide bar.

7. The plate material conveying mechanism according to claim 6, wherein the mounting plate is further provided with a fixing seat, the screw rod passes through the fixing seat, the fixing seat is provided with a fixing pin, and the fixing pin movably abuts against the screw rod for fixing the screw rod.

8. The plate material conveying mechanism according to claim 6, wherein the first regulating plate and the second regulating plate are respectively provided with a plurality of rollers, the roller surfaces of the rollers are opposite to the first regulating plate or the second regulating plate, the rollers on the first regulating plate are uniformly distributed along the surface of the first regulating plate in a straight line, the rollers on the second regulating plate are uniformly distributed along the surface of the second regulating plate in a straight line, and the rollers on the first regulating plate are respectively opposite to the rollers on the second regulating plate.

9. The plate material conveying mechanism according to claim 1, wherein the driving device comprises a driving member and a transmission shaft, the driving member is in transmission connection with the transmission shaft, and the transmission shaft is in transmission connection with one end of each rotating shaft respectively.

10. The plate material conveying mechanism according to claim 1, wherein at least one of the shafts is provided with a rotation speed detecting device.

Technical Field

The invention belongs to the field of material conveying equipment, and particularly relates to a plate material conveying mechanism.

Background

Patent document CN201710430059 discloses a high-precision conveying device for appearance detection of a transparent flat plate, the device at least comprising: a first step rotating shaft component, a second step rotating shaft component, a third step rotating shaft component, a fourth step rotating shaft component, a first belt supporting component, a second belt supporting component, a first transmission belt, a second transmission belt, a third transmission belt, a fourth transmission belt, a rotary encoder, a bottom plate, a first supporting plate, a second supporting plate, a main driving shaft component and the like, wherein the transmission belts are sleeved in the arc-shaped grooves of the first step rotating shaft component, the second step rotating shaft component, the third step rotating shaft component and the fourth step rotating shaft component with a certain stretching ratio or tensioning force, the belt supporting components are arranged below each belt, so that the belt collapse phenomenon is prevented, the movement straightness of the transmitted transparent flat plate is improved, errors caused by the movement of the transparent flat plate in the line scanning process are reduced to the maximum extent, and the straightness of the edge of the transparent flat plate or straight line elements in a line scanning image is finally ensured.

The solution of the above patent document has the following drawbacks:

be equipped with first backup pad and second backup pad, the both ends of first ladder pivot subassembly, second ladder pivot subassembly, third ladder pivot subassembly and fourth ladder pivot subassembly are installed respectively in first backup pad and second backup pad, and the machining precision of above-mentioned part requires highly, and the assembly degree of difficulty is big, and installation error is difficult to guarantee and maintain the maintenance difficulty, and especially vulnerable part such as belt changes the difficulty.

Disclosure of Invention

The invention mainly aims to provide a plate material conveying mechanism which has low requirements on the machining precision of a rotating shaft and a supporting seat, is convenient to install, has small installation error, is very convenient to replace a first belt, and has uniform and stable conveying speed.

In order to achieve the purpose, the invention provides a plate material conveying mechanism which comprises a driving device, a positioning device and at least two supporting seats, wherein rotating shafts are arranged on the supporting seats side by side, first ends of the rotating shafts are respectively rotatably erected on the corresponding supporting seats, the first ends of the rotating shafts are respectively connected with the driving device in a transmission manner, at least two groups of first belts are connected between second ends of the rotating shafts in a transmission manner, and the upstream of each group of first belts is butted with the positioning device.

The improved structure is characterized in that the number of the supporting seats is at least three, two rotating shafts are rotatably arranged on one supporting seat in the middle, at least two groups of first belts are connected with one rotating shaft on the adjacent supporting seat, two groups of second belts are connected between the other rotating shaft and the rotating shaft on the adjacent supporting seat, the upstream of each second belt is in butt joint with the downstream of the corresponding first belt, and a detection station is arranged between the corresponding first belt and the corresponding second belt. In the invention, the supporting seat provided with two rotating shafts can be defined as a double seat, and the supporting seat provided with only one rotating shaft can be defined as a single seat. Can set up the detection station between second belt and first belt, for example glass detects the station, because of there is the space between first belt and the second belt, this space is because of the clearance that exists between the two pivots on the double seat and forms, utilizes this space can carry out the detection of nothing blocking to the glass in the conveying, the defect of detection glass that can be accurate. Theoretically, the double seats can be replaced by two parallel single seats, but the two parallel single seats can be replaced by the two parallel single seats, the situation that the gap between the rotating shafts on the parallel single seats is too large and the like can exist, and other situations in the actual production process can exist, so that the double seats are more suitable.

In a further improvement, the plate material conveying mechanism further comprises a fixing frame, and the fixing frame is fixedly arranged;

still be equipped with the bearing roller on first belt and the second belt, the bearing roller is fixed on the mount, the bearing roller is tangent with the inboard of first belt or the inboard of second belt. The supporting roller has a supporting function for the first belt and the second belt, and the first belt or the second belt is prevented from sagging due to overlarge gravity when the first belt and the second belt convey plate materials.

Further improved, first belt and second belt are the round belt, and when the plate material was conveyed to the adoption round belt, it was tangent between round belt and the plate material, consequently, be line contact between round belt and the plate material, the location and the conveying of the plate material of being convenient for, the plate material is difficult for producing great skew in the position of data send process.

The supporting seat is further improved, the supporting seat comprises a seat body, a bearing is embedded in the seat body, a step is arranged between the first end of the rotating shaft and the middle part of the rotating shaft, the diameter of the first end of the rotating shaft is smaller than the inner diameter of the bearing, the diameter of the middle part of the rotating shaft is larger than the inner diameter of the bearing, the first end of the rotating shaft penetrates through the bearing and then is connected with a fixing ring, and the rotating shaft is locked on the seat body through the fixing ring;

the second end of pivot is equipped with the belt mounting groove, and each pivot passes through the belt mounting groove and links to each other with first belt or second belt transmission. Through the steps formed between the first ends of the fixing ring and the rotating shaft and the middle part of the rotating shaft, the rotating shaft can be clamped in the bearing of the base body, and the rotating shaft cannot shake along the axial direction of the rotating shaft. The fixed ring can adopt a nut, correspondingly, the first end of the rotating shaft can be provided with an external thread, and the nut is sleeved at the first end of the rotating shaft through a lock, so that the rotating shaft can be locked on the base body.

In a further improvement, the plate material conveying mechanism further comprises a bottom plate, and the supporting seat is arranged on the bottom plate;

the positioning device comprises a first adjusting plate, a second adjusting plate and two mounting plates, wherein the mounting plates are vertically arranged on the bottom plate, the two mounting plates are parallel to each other, the same ends of the two mounting plates are butted with the upstream of the first belt, and a screw rod and a sliding rod are connected between the two mounting plates; first regulating plate and second regulating plate are parallel to each other, it is equipped with left-handed nut to inlay on the first regulating plate, it is equipped with right-handed nut to inlay on the second regulating plate, the lead screw wears to establish on first regulating plate through left-handed nut, the lead screw still wears to establish on the second regulating plate through right-handed nut, the lead screw is equipped with the first in command, first regulating plate and second regulating plate slip card respectively establish on the slide bar. The lead screw can be rotated through the first handle, the left-handed nut and the right-handed nut can be mutually close to or mutually far away from the lead screw by rotating the lead screw, so that the first adjusting plate and the second adjusting plate can be mutually close to and mutually far away from each other, the first adjusting plate and the second adjusting plate slide on the lead screw and the slide bar, and preferably, the number of the slide bars can be two. Therefore, the distance between the first adjusting plate and the second adjusting plate can be adjusted through the adjusting screw rod. The left-handed nut and the right-handed nut can be fixed on the first adjusting plate or the second adjusting plate through the fixing block, the shapes of the left-handed nut and the right-handed nut are basically the same, and the difference is only that the internal threads are different.

Before conveying the plate material to first belt, the plate material is placed on slide bar and lead screw, through adjusting the distance between first regulating plate and the second regulating plate, can press from both sides tight plate material to the realization is to the location of plate material. After the plate material is positioned, the plate material can be conveyed to the first belt.

Further improved, still be equipped with the fixing base on the mounting panel, the lead screw passes the fixing base, be equipped with the fixed pin on the fixing base, the fixed pin activity is supported and is established to the lead screw in order to be used for the fixed lead screw. After the interval between first regulating plate and the second regulating plate is transferred, can adopt the fixed pin to support the lead screw, prevent that the lead screw from rotating to can make the position between first regulating plate and the second regulating plate can not change. Preferably, a second handle may be provided on the fixing pin.

Further improved, be equipped with a plurality of gyro wheels on first regulating plate and the second regulating plate respectively, the wheel face and first regulating plate or second regulating plate of gyro wheel are relative, and each gyro wheel that is located on the first regulating plate becomes sharp evenly distributed along first regulating plate face, and each gyro wheel that is located on the second regulating plate becomes sharp evenly distributed along second regulating plate face, each gyro wheel on the first regulating plate is relative respectively with each gyro wheel on the second regulating plate. When the plate material is placed on the screw rod and the slide rod, two sides of the plate material are respectively contacted with the roller on the first adjusting plate and the roller on the second adjusting plate, the rollers have a guiding effect on the plate material, and the plate material can conveniently slide between the first adjusting plate and the second adjusting plate.

The improved structure is characterized in that the driving device comprises a driving piece and a transmission shaft, the driving piece is in transmission connection with the transmission shaft, and the transmission shaft is in transmission connection with one end of each rotating shaft respectively. The driving piece is the motor, and the driving piece can set up the bottom at the bottom of bottom plate, adopts belt drive to link to each other between transmission shaft and the driving piece, can adopt gear drive transmission to link to each other between the first end of transmission shaft and pivot, also can adopt belt drive transmission to link to each other.

In a further improvement, at least one rotating shaft is provided with a rotating speed detection device, and the rotating speed detection device is a speed sensor or an encoder and is used for detecting the rotating speed of the rotating shaft. Because each pivot all is driven through drive arrangement, each pivot is synchronous pivoted, generally speaking, only need set up rotational speed detection device in a pivot can.

Compared with the prior art, the technical scheme of the invention has the beneficial effects that:

the first ends of the rotating shafts are driven to rotate by the driving device, the rotating shafts drive the first belts to rotate, and plate materials such as glass and the like can be conveyed on the first belts of each group. Before the plate material gets into first belt, can also fix a position through positioner, can guarantee that the position of plate material in data send process can not take place great skew, be convenient for to the conveying and the detection of plate material.

The first ends of the rotating shafts are respectively rotatably erected on the corresponding supporting seats, so that a cantilever type structure is formed. During installation, in order to ensure the consistency of the rotating shafts, the positions of the supporting seats of the rotating shafts are only required to be ensured, and if the rotating shafts are fixed by two supporting seats, the position relation of the two supporting seats for fixing the same rotating shaft and the position relation of the supporting seats between different rotating shafts are also required to be ensured; and two supporting seats of the same rotating shaft can generate phenomena of clamping stagnation, abnormal sound and the like due to overlarge coaxiality deviation, and as shown in the scheme of the patent document with the application number of CN201710430059, the processing precision and the installation requirements of the supporting seats and the rotating shaft are much higher. Compared with the patent document with the application number of CN201710430059, which discloses a high-precision conveying device for appearance detection of a transparent flat plate, the invention has the advantages that the installation requirements on the supporting seats and the rotating shafts are greatly reduced, so that the requirements on the matching degree of the supporting seats and the rotating shafts during installation are also greatly reduced for the processing precision of the supporting seats and the rotating shafts; simultaneously, each supporting seat can be independently installed, the mutual influence is little, and the replacement and the installation of the first belt are very convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a plate material conveying mechanism;

FIG. 2 is a schematic structural diagram of the positioning device;

FIG. 3 is a schematic structural view of a single seat;

FIG. 4 is a schematic structural view of a dual seat;

FIG. 5 is a connection diagram of a single seat, a double seat, a first belt and a second belt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two or more, for example, three or the like, unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1 to 5, a conveying mechanism for plate materials includes a driving device 3, a positioning device 1 and at least two supporting seats 2, wherein the supporting seats 2 are rotatably provided with rotating shafts 21, the rotating shafts 21 are arranged side by side, first ends 211 of the rotating shafts 21 are respectively connected with the driving device 3 in a transmission manner, second ends 212 of the rotating shafts 21 are connected with at least two groups of first belts 22 in a transmission manner, and the upstream of each group of first belts 22 is butted with the positioning device 1.

In this embodiment, the driving device 3 drives the first end 211 of each rotating shaft 21 to rotate, each rotating shaft 21 drives the first belt 22 to rotate, and each group of the first belts 22 can convey plate materials 23, such as glass. Before the plate material 23 enters the first belt 22, the positioning device 1 can also be used for positioning, so that the plate material 23 cannot be greatly deviated in the position in the conveying process, and the conveying and the detection of the plate material 23 are facilitated.

The rotating shaft 21 of the present embodiment is fixed by only one supporting seat 2, and preferably, the first end 211 of the rotating shaft 21 is fixed on the supporting seat 2, thereby forming a cantilever structure. During installation, in order to ensure the consistency of the rotating shafts 21, only the positions of the supporting seats 2 of the rotating shafts 21 need to be ensured, and if the rotating shafts 21 are fixed by using two supporting seats 2, the position relation of the two supporting seats 2 for fixing the same rotating shaft 21 and the position relation of the supporting seats 2 between different rotating shafts 21 need to be ensured; moreover, the two supporting seats 2 of the same rotating shaft 21 can generate phenomena such as clamping stagnation and abnormal sound due to overlarge coaxiality deviation, and as shown in the patent document with the application number of CN201710430059, the processing precision and the installation requirements for the supporting seats 2 and the rotating shaft 21 are much higher. Compared with the patent document with the application number of CN201710430059, which discloses a high-precision conveying device for transparent flat appearance inspection, in this embodiment, because the installation requirements on the supporting seat 2 and the rotating shaft 21 are reduced greatly, the requirement on the matching degree of the supporting seat 2 and the rotating shaft 21 during installation is also much lower for the processing precision of the supporting seat 2 and the rotating shaft 21; meanwhile, each supporting seat 2 can be independently installed, the mutual influence is little, and the replacement and installation of the first belt 22 are very convenient.

In this embodiment, as a further improvement of the above technical solution, the number of the supporting seats 2 is at least three, two rotating shafts 21 are rotatably disposed on one supporting seat 2 located in the middle, one of the rotating shafts 21 is connected to the rotating shaft 21 on the adjacent supporting seat 2 thereof by at least two sets of first belts 22, two sets of second belts 24 are connected between the other rotating shaft 21 and the rotating shaft 21 on the adjacent supporting seat 2 thereof, the upstream of the second belt 24 is in butt joint with the downstream of the first belt 22, and a detection station is disposed between the first belt 22 and the second belt 24. In this embodiment, the support base 2 provided with two rotating shafts 21 may be defined as a double base, and the support base 2 provided with only one rotating shaft 21 may be defined as a single base. A detection station, such as a glass detection station, can be arranged between the second belt 24 and the first belt 22, and because a gap exists between the first belt 22 and the second belt 24 and is formed by a gap existing between the two rotating shafts 21 on the double seats, the gap can be used for carrying out non-blocking detection on the glass in transmission, and the defects of the glass can be accurately detected. Theoretically, the double seats may be replaced by two parallel single seats, but the use of two parallel single seats instead of the double seats may cause an excessive gap between the rotating shafts 21 on the parallel single seats, and other situations in the actual production process, and thus, the use of the double seats may be more suitable.

In this embodiment, as a further improvement of the above technical solution, the plate material conveying mechanism further includes a fixing frame 25, and the fixing frame 25 is fixedly disposed;

the first belt 22 and the second belt 24 are further provided with a carrier roller 26, the carrier roller 26 is fixed on the fixing frame 25, and the carrier roller 26 is tangent to the inner side of the first belt 22 or the inner side of the second belt 24. The support rollers 26 support the first belt 22 and the second belt 24 to prevent the first belt 22 or the second belt 24 from sagging due to excessive gravity when the first belt 22 and the second belt 24 convey the plate material 23.

In this embodiment, as a further improvement of the above technical solution, the first belt 22 and the second belt 24 are both circular belts, and when the circular belts are used to convey the plate material 23, the circular belts are tangent to the plate material 23, so that the circular belts and the plate material 23 are in line contact, which is convenient for positioning and conveying the plate material 23, and the position of the plate material 23 in the conveying process is not easy to generate large offset.

In this embodiment, as a further improvement of the above technical solution, the supporting seat 2 includes a seat body 27, a bearing 271 is embedded in the seat body 27, a step exists between the first end 211 of the rotating shaft 21 and the middle portion of the rotating shaft 21, the diameter of the first end 211 of the rotating shaft 21 is smaller than the inner diameter of the bearing 271, the diameter of the middle portion of the rotating shaft 21 is larger than the inner diameter of the bearing 271, the first end 211 of the rotating shaft 21 passes through the bearing 271 and then is connected to the fixing ring 28, and the rotating shaft 21 is locked to the seat body 27 through the;

the second end 212 of the rotating shaft 21 is provided with a belt installation groove 213, and each rotating shaft 21 is in transmission connection with the first belt 22 or the second belt 24 through the belt installation groove 213. The fixing ring 28 and the step formed between the first end 211 of the rotating shaft 21 and the middle of the rotating shaft 21 can clamp the rotating shaft 21 in the bearing 271 of the seat body 27, so that the rotating shaft 21 cannot shake along the axial direction. The fixing ring 28 can be a nut, and correspondingly, the first end 211 of the rotating shaft 21 can be provided with an external thread, and the nut is locked on the first end 211 of the rotating shaft 21 through the locking sleeve, so that the rotating shaft 21 can be locked on the seat 27.

In this embodiment, as a further improvement of the above technical solution, the plate material conveying mechanism further includes a bottom plate 29, and the support base 2 is disposed on the bottom plate 29;

the positioning device 1 comprises a first adjusting plate 11, a second adjusting plate 12 and two mounting plates 13, wherein the mounting plates 13 are vertically arranged on a bottom plate 29, the two mounting plates 13 are parallel to each other, the same ends of the two mounting plates 13 are butted with the upstream of a first belt 22, and a screw rod 14 and a sliding rod 15 are connected between the two mounting plates 13; the first adjusting plate 11 and the second adjusting plate 12 are parallel to each other, a left-handed nut 111 is embedded on the first adjusting plate 11, a right-handed nut is embedded on the second adjusting plate 12, the lead screw 14 penetrates through the first adjusting plate 11 through the left-handed nut 111, the lead screw 14 further penetrates through the second adjusting plate 12 through the right-handed nut, the lead screw 14 is provided with a first handle 141, and the first adjusting plate 11 and the second adjusting plate 12 are respectively arranged on the sliding rod 15 in a sliding and clamping manner. The screw rod 14 can be rotated by the first handle 141, the left-handed nut 111 and the right-handed nut can be moved close to or away from each other on the screw rod 14 by rotating the screw rod 14, so that the first adjusting plate 11 and the second adjusting plate 12 can be moved close to or away from each other, the first adjusting plate 11 and the second adjusting plate 12 slide on the screw rod 14 and the slide rod 15, and preferably, two slide rods 15 can be provided. Thus, adjustment of the spacing between the first adjustment plate 11 and the second adjustment plate 12 can be achieved by the adjustment screw 14. The left-handed nut 111 and the right-handed nut of the present embodiment may be fixed to the first adjusting plate 11 or the second adjusting plate 12 by the fixing block 121, and the left-handed nut 111 and the right-handed nut have substantially the same outer shape and are different only in the inner thread.

Before the plate material 23 is conveyed to the first belt 22, the plate material 23 is placed on the sliding rod 15 and the screw rod 14, and the plate material 23 can be clamped by adjusting the distance between the first adjusting plate 11 and the second adjusting plate 12, so that the plate material 23 can be positioned. After positioning the plate material 23, the plate material 23 may be transferred to the first belt 22.

In this embodiment, as a further improvement of the above technical solution, the mounting plate 13 is further provided with a fixing seat 131, the screw rod 14 passes through the fixing seat 131, the fixing seat 131 is provided with a fixing pin 132, and the fixing pin 132 movably abuts against the screw rod 14 for fixing the screw rod 14. After the distance between the first adjusting plate 11 and the second adjusting plate 12 is adjusted, the fixing pin 132 can be used to push the screw 14 against to prevent the screw 14 from rotating, so that the position between the first adjusting plate 11 and the second adjusting plate 12 can not be changed. Preferably, the fixing pin 132 may be provided with a second handle 133.

In this embodiment, as a further improvement of the above technical solution, a plurality of rollers 16 are respectively disposed on the first adjusting plate 11 and the second adjusting plate 12, a wheel surface of the roller 16 is opposite to the first adjusting plate 11 or the second adjusting plate 12, each roller 16 on the first adjusting plate 11 is linearly and uniformly distributed along the plate surface of the first adjusting plate 11, each roller 16 on the second adjusting plate 12 is linearly and uniformly distributed along the plate surface of the second adjusting plate 12, and each roller 16 on the first adjusting plate 11 is opposite to each roller 16 on the second adjusting plate 12. When the plate material 23 is placed on the screw rod 14 and the slide rod 15, two sides of the plate material 23 are respectively contacted with the roller 16 on the first adjusting plate 11 and the roller 16 on the second adjusting plate 12, and the roller 16 has a guiding function on the plate material 23, so that the plate material 23 can conveniently slide between the first adjusting plate 11 and the second adjusting plate 12.

In this embodiment, as a further improvement of the above technical solution, the driving device 3 includes a driving member 31 and a driving member 32, the driving member 31 is in transmission connection with the driving member 32, and the driving member 32 is in transmission connection with one end of each rotating shaft 21. The driving member 31 is a motor, the driving member 31 can be disposed at the bottom end of the bottom plate 29, the driving member 32 and the driving member 31 are connected by a belt transmission, and the driving member 32 and the first end 211 of the rotating shaft 21 can be connected by a gear mechanism or a belt mechanism.

In this embodiment, as a further improvement of the above technical solution, at least one of the rotating shafts 21 is provided with a rotating speed detecting device 214, and the rotating speed detecting device 214 is a speed sensor or an encoder for detecting the rotating speed of the rotating shaft 21. Since each rotating shaft 21 is driven by the driving device 3, each rotating shaft 21 rotates synchronously, and generally speaking, only one rotating shaft 21 needs to be provided with the rotating speed detecting device 214.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.