A pre-stretching and shaping device for conveyor belt

Abstract

The present invention discloses a pre-stretching and shaping device for a conveyor belt, comprising a deviation correction mechanism, a driving wheel mechanism, a tensioning mechanism, a waist-drum-shaped guide wheel, a first leading wheel, and a second leading wheel. The deviation correction mechanism comprises an outer spherical bearing with a slider seat, a nut block, a positioning ring, a screw, a positioning pin, a support plate, an outer spherical bearing with a diamond seat, and a deviation correction wheel; the driving wheel mechanism comprises a driving wheel located at the lower left of the deviation correction wheel and a driving wheel driving mechanism; the tensioning mechanism comprises a pair of cylinder seats, a cylinder, a tensioning wheel seat, a tensioning wheel, an upper tensioning idler wheel, and a lower tensioning idler wheel; the waist-drum-shaped guide wheel is located at the lower right side of the driving wheel and at the upper right side of the upper tensioning idler wheel; the first leading wheel is located to the right of the lower tensioning idler wheel; and the second leading wheel is located at the lower left of the deviation correction wheel and at the upper right side of the driving wheel. The present invention can pre-stretch and shape a newly bonded conveyor belt into a ring shape, thereby solving the problem of wasted time caused by the need to shut down the conveying equipment after replacing a new conveyor belt.

Description

Technical Field

[0001] The invention relates to a pre-stretching and shaping device for a conveyor belt. Background Art

[0002] At present, inspection machines for detecting printing defects have high requirements for conveyor belts. After a certain period of operation, the conveyor belt needs to be replaced with a new one. The length of the conveyor belt varies according to different equipment. The new conveyor belt is bonded into a ring according to the length required by the equipment. There will be more or less deviation during the bonding process. Therefore, the new ring conveyor belt will drift when it is first used on the equipment. For inspection machines with high requirements for conveying accuracy, it will affect the quality of the product. Therefore, the conveyor equipment with the newly replaced conveyor belt needs to be opened (no product is placed on the conveyor equipment) for a certain period of time until the new conveyor belt runs smoothly before the conveyor equipment can be used. This wastes the running time of the conveyor equipment. Summary of the Invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a pre-stretching and shaping device for a conveyor belt, which can pre-stretch and shape a newly bonded conveyor belt into a ring, so as to solve the problem of wasting the operating time of the conveyor equipment due to the need to open the conveyor equipment after the new conveyor belt is replaced.

[0004] The object of the present invention is achieved as follows: A pre-stretching and shaping device for a conveyor belt comprises a bracket, a deviation correction mechanism, a driving wheel mechanism, a tensioning mechanism, a waist drum guide wheel, a first main guide wheel, a second main guide wheel and a plurality of auxiliary guide wheels; wherein,

[0005] The bracket includes four upright posts, a rectangular bottom plate fixed to the top of the four upright posts, a left longitudinal wall plate and a right longitudinal wall plate fixed to the left and right ends of the top surface of the bottom plate in a one-to-one correspondence, and a panel fixed between the front ends of the left longitudinal wall plate and the right longitudinal wall plate, with a slide groove vertically provided on the left top surface of the panel;

[0006] The correction mechanism includes an outer spherical bearing with a slider seat, a nut block, a positioning ring, a screw, a positioning pin, a support plate, an outer spherical bearing with a diamond seat and a correction wheel; the outer spherical bearing with a slider seat is installed in the slide groove; the nut block is installed on the top surface of the slide groove of the panel; the positioning ring is arranged between the top of the slider seat of the outer spherical bearing with the slider seat and the bottom of the adjustment seat, and a through hole connected to the inner hole of the positioning ring is radially opened in the middle of the outer surface of the positioning ring; the screw is installed in the threaded hole of the nut block, and a pin hole is radially opened in the lower part of the screw, and the lower end of the screw passes through the outer spherical bearing with the slider seat in sequence. The inner hole of the adjustment seat and the inner hole of the positioning ring; the positioning pin is inserted into the through hole of the positioning ring and the pin hole of the screw, so that the screw is slidably connected to the outer spherical bearing of the slider seat; the support plate includes a lower vertical part, a horizontal part and an upper vertical part, and is a lying Z-shaped structure. The lower vertical part of the support plate is fixed on the front side surface of the panel and is located below the slide groove; the outer spherical bearing with a diamond seat and the outer spherical bearing with a slider seat are coaxially installed on the front side surface of the upper vertical part of the support plate; the correction wheel is installed between the outer spherical bearing with the slider seat and the outer spherical bearing with a diamond seat and is located above the horizontal part of the support plate;

[0007] The driving wheel mechanism includes a driving wheel mounted on the front side of the panel of the bracket through a bearing and located to the lower left of the correcting wheel, and a driving wheel driving mechanism mounted between the tail of the rotating shaft of the driving wheel and the bottom plate of the bracket;

[0008] The tensioning mechanism includes a pair of cylinder seats, a cylinder, a tensioning wheel seat, a tensioning wheel, an upper tensioning idler wheel and a lower tensioning idler wheel; the pair of cylinder seats are installed horizontally on the front side of the panel, one above and one below, and are located below the driving wheel; the cylinder is installed between the left ends of the pair of cylinder seats; the left end of the tensioning wheel seat is installed on the end of the piston rod of the cylinder and is slidable left and right between the pair of cylinder seats; the tensioning wheel is installed at the right end of the tensioning wheel seat; the upper tensioning idler wheel and the lower tensioning idler wheel are both installed on the front side of the panel and are symmetrically located above and below the right side of the pair of cylinder seats;

[0009] The waist-drum-shaped guide wheel is installed on the front side of the panel and is located below the right side of the driving wheel, and the waist-drum-shaped guide wheel is located above the right side of the upper tensioning idler wheel;

[0010] The first capstan is mounted on the front side of the panel and is located to the right of the lower idler tensioning wheel;

[0011] The second leading wheel is installed on the front side of the panel and is located at the lower left of the correcting wheel, and the second leading wheel is located at the upper right of the driving wheel;

[0012] A plurality of auxiliary guide wheels are mounted in a staggered arrangement on the middle right portion of the front side of the panel;

[0013] The conveyor belt first passes around the driving wheel counterclockwise, then passes around the waist drum guide wheel clockwise, then passes around the upper tensioning idler wheel, the lower tensioning idler wheel and the first main guide wheel counterclockwise in sequence, then passes around several auxiliary guide wheels, then passes around the correcting wheel counterclockwise, and finally passes around the second main guide wheel clockwise; the wrap angle of the conveyor belt on the driving wheel is at least 180°, and the wrap angle of the conveyor belt on the correcting wheel is 160°~170°.

[0014] The above-mentioned pre-stretching and shaping device for the conveyor belt, wherein the bracket also includes a support rod spanning between the rear upper corner of the left end longitudinal wall panel and the rear upper corner of the right end longitudinal wall panel.

[0015] In the above-mentioned pre-stretching and shaping device for the conveyor belt, the correction mechanism further includes a handwheel installed on the top of the screw.

[0016] The above-mentioned pre-stretching and shaping device for the conveyor belt, wherein the driving wheel driving mechanism includes a motor mounted on the base plate of the bracket through adjusting bolts and nuts, a driving synchronous pulley mounted on the output shaft of the motor, a passive synchronous pulley mounted on the tail of the rotating shaft of the driving wheel, and a synchronous belt wrapped between the driving synchronous pulley and the passive synchronous pulley.

[0017] The above-mentioned pre-stretching and shaping device for the conveyor belt, wherein the tensioning mechanism also includes a baffle installed between the right end front side surfaces of a pair of cylinder seats

[0018] The pre-stretching and shaping device for the conveyor belt of the present invention has the following characteristics:

[0019] 1) The correction mechanism is composed of an outer spherical bearing with a slider seat, an outer spherical bearing with a diamond seat, a correction wheel mounted between the outer spherical bearing with a slider seat and the outer spherical bearing with a diamond seat, and an upper and lower adjustment mechanism of the outer spherical bearing with a slider seat. When the conveyor belt is deformed and deviates, it can pull the conveyor belt back to the middle position of all guide wheels, thereby suppressing the deviation and eliminating the joint bonding error of the conveyor belt.

[0020] 2) The tensioning mechanism used includes a tensioning wheel, an upper tensioning idler wheel, a lower tensioning idler wheel and a cylinder driving the tensioning wheel, which can stretch the conveyor belt;

[0021] 3) The waist drum type guide wheel is used. When the conveyor belt runs on all the guide wheels, an axial centripetal pulling force will be generated to pull the conveyor belt back to the middle position of all the guide wheels, thereby preventing the belt from deviating.

[0022] 4) It can pre-stretch and shape the newly bonded ring-shaped conveyor belt to solve the problem of wasting the running time of the conveyor equipment due to the need to open the conveyor equipment after the new conveyor belt is replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the pre-stretching and shaping device of the conveyor belt of the present invention;

[0024] Figure 2 yes Figure 1 AA view in the;

[0025] Figure 3 It is a structural schematic diagram of the deviation-correcting mechanism in the pre-stretching and shaping device of the conveyor belt of the present invention;

[0026] Figure 3a yes Figure 3 BB view in the figure;

[0027] Figure 3b yes Figure 3a Right side view;

[0028] Figure 4 It is a partial axial cross-sectional view of the driving wheel mechanism in the pre-stretching and shaping device of the conveyor belt of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the tensioning mechanism in the pre-stretching and shaping device of the conveyor belt of the present invention;

[0030] Figure 5a yes Figure 5 CC view in the figure;

[0031] Figure 5b yes Figure 5 DD view in the;

[0032] Figure 6 It is an axial cross-sectional view of a waist-drum-shaped guide wheel in the pre-stretching and shaping device of the conveyor belt of the present invention;

[0033] Figure 7 It is a schematic structural diagram of the pre-stretching and shaping device of the conveyor belt of the present invention when in operation. DETAILED DESCRIPTION

[0034] The present invention will be further described below with reference to the accompanying drawings.

[0035] See also Figures 1 to 7 The pre-stretching and shaping device of the conveyor belt of the present invention includes a bracket 1, a correction mechanism 2, a driving wheel mechanism 3, a tensioning mechanism 4, a waist drum guide wheel 5, a first main guide wheel 6, a second main guide wheel 7 and multiple auxiliary guide wheels 8.

[0036] The bracket 1 includes four columns arranged in a rectangular manner with a center line connecting them, a rectangular base plate 11 fixed to the top of the four columns, a left longitudinal wall panel 12 and a right longitudinal wall panel 13 fixed one by one to the left and right ends of the top surface of the base plate 11, and a panel 10 fixed between the front end surface of the left longitudinal wall panel 12 and the front end surface of the right longitudinal wall panel 13, and a slide groove 15 is vertically opened on the left top surface of the panel 10; the bracket 1 also includes a support rod 14 spanning between the rear upper corner of the left longitudinal wall panel 12 and the rear upper corner of the right longitudinal wall panel 13.

[0037] The correction mechanism 2 includes an outer spherical bearing 21 with a slider seat, a nut block 22, a positioning ring 23, a screw 24, a positioning pin 25, a support plate 27, an outer spherical bearing 28 with a diamond seat and a correction wheel 20; wherein the outer spherical bearing 21 with a slider seat is installed in the slide groove 15 of the panel 10; the nut block 22 is installed on the top surface of the slide groove 15 by a screw; the positioning ring 23 is provided between the top of the slider seat of the outer spherical bearing 21 with the slider seat and the bottom of the adjustment seat, and a through hole connected to the inner hole of the positioning ring 23 is radially opened in the middle of the outer surface of the positioning ring 23; the screw 24 is installed in the threaded hole of the nut block 21, a handwheel 26 is installed on the top of the screw 23, and a pin hole is radially opened at the lower part of the screw 24. The lower end of 4 passes through the inner hole of the adjustment seat of the outer spherical bearing 21 with a slider seat and the inner hole of the positioning ring 23 in sequence; the positioning pin 25 is inserted into the through hole of the positioning ring 23 and the pin hole of the screw 24, so that the screw 24 is slidably connected with the outer spherical bearing 22 with a slider seat; the supporting plate 27 includes a lower vertical part, a horizontal part and an upper vertical part and is a lying Z-shaped structure. The lower vertical part of the supporting plate 27 is fixed on the front side of the panel 10 and is located below the slide groove; the outer spherical bearing 28 with a diamond seat is coaxially installed on the front side of the upper vertical part of the supporting plate 27 with the outer spherical bearing 21 with a slider seat; the correcting wheel 20 is installed between the outer spherical bearing 21 with a slider seat and the outer spherical bearing 28 with a diamond seat and is located above the horizontal part of the supporting plate 27.

[0038] The driving wheel mechanism 3 includes a driving wheel 30 installed on the front side of the panel 10 of the bracket 1 through a bearing 37 and located at the lower left of the correcting wheel 20, and a driving wheel driving mechanism between the tail of the rotating shaft 39 on which the driving wheel 30 is installed and the base plate 11 of the bracket 1, the bearing 37 is installed on the bearing seat 38, and the bearing seat 38 is installed on the rear side of the panel 10; the driving wheel driving mechanism includes a motor 31 installed on the base plate 11 through bolts 35 and nuts 36, a driving synchronous pulley 32 installed on the output shaft of the motor 31, a passive synchronous pulley 33 installed at the tail of the rotating shaft 39 of the driving wheel 30, and a synchronous belt 34 wrapped between the driving synchronous pulley 32 and the passive synchronous pulley 33; the installation height of the motor 31 is adjusted by the bolts 35 and nuts 36, and the tightness of the synchronous belt 34 can be adjusted.

[0039] The tensioning mechanism 4 includes a pair of cylinder seats 41, a cylinder 42, a tensioning wheel seat 43, a tensioning wheel 40, an upper tensioning idler wheel 44, a lower tensioning idler wheel 45 and a baffle 46; wherein, the pair of cylinder seats 41 are installed horizontally on the front side of the panel 10 one above and one below and are located below the driving wheel 30; the cylinder 42 is installed between the left ends of the pair of cylinder seats 41; the left end of the tensioning wheel seat 43 is installed on the end of the piston rod of the cylinder 42 and can slide left and right between the pair of cylinder seats 41; the tensioning wheel 40 is installed on the tensioning wheel through a pair of bearings 401 At the right end of the wheel seat 43, the shaft 400 of the tensioning wheel 40 passes through the axial hole at one end of the tensioning wheel seat 43, a spacer 402, the inner holes of a pair of bearings 401, another spacer 402 and the axial hole at the other end of the tensioning wheel seat 43 in sequence, and is fixed and locked by a set screw 403; the upper tensioning idler wheel 44 and the lower tensioning idler wheel 45 are both installed on the front side of the panel 10 and are symmetrically located above and below the right side of a pair of cylinder seats 41; the baffle 46 is installed between the right end front sides of a pair of cylinder seats 41 to prevent lateral movement of the tensioning wheel seat 43.

[0040] The waist-drum-shaped guide wheel 5 is mounted on the front side of the panel 10 and is located below the right side of the driving wheel 30. The waist-drum-shaped guide wheel 5 is also located above the right side of the upper tensioning idler wheel 44. A bearing 51 is installed in each of the inner holes at both ends of the waist-drum-shaped guide wheel 5. The two bearings 51 are mounted on the shaft 50 of the waist-drum-shaped guide wheel 5 and fixed by a retaining ring 52. The other end of the shaft 50 passes through the hole in the panel 10 and is fixed by a washer 53 and a nut 54.

[0041] The first capstan 6 is mounted on the front side of the panel 10 and is located to the right of the lower tensioning idler 45;

[0042] The second leading wheel 7 is installed on the front side of the panel 10 and is located at the lower left of the correcting wheel 20, and the second leading wheel 7 is located at the upper right of the driving wheel 30;

[0043] A plurality of auxiliary guide wheels 8 are mounted in a staggered arrangement on the middle right portion of the front side of the panel 10;

[0044] The conveyor belt 9 first passes around the driving pulley 30 counterclockwise, then passes around the waist drum guide pulley 5 clockwise, then passes around the upper tensioning idler pulley 44, the lower tensioning idler pulley 45 and the first leading pulley 6 counterclockwise in sequence, then passes around several auxiliary guide pulleys 8, then passes around the correcting pulley 20 counterclockwise, and finally passes around the second leading pulley 7 clockwise. The wrap angle of the conveyor belt 9 on the driving pulley 30 is at least 180°, and the wrap angle of the conveyor belt 9 on the correcting pulley 20 is 160°~170°.

[0045] The conveyor belt pre-stretching and shaping device of the present invention can meet the needs of pre-stretching and shaping of conveyor belts of different lengths by selecting the number of auxiliary guide wheels 8 to be wound around the conveyor belt 9 according to the length of the conveyor belt 9. First, the conveyor belt 9 is wrapped around the correcting wheel 20 of the correcting mechanism 2, the driving wheel 30 of the driving wheel mechanism 3, the waist drum guide wheel 5, the upper tensioning idler wheel 44 of the tensioning mechanism 4 and the lower tensioning idler wheel 4 5 After the first leading wheel 6 and the second leading wheel 7 and the required auxiliary guide wheel 8 are installed, the air is controlled to enter the left end of the cylinder 42 of the tensioning mechanism 4, so that the piston rod of the cylinder 42 extends to the right, and the tensioning wheel 40 is pushed to the right through the tensioning wheel seat 43 to push the right end of a pair of cylinder seats 41, thereby tensioning the conveyor belt 9; the driving wheel driving mechanism of the driving wheel mechanism 3 drives the driving wheel 30 to rotate, driving the conveyor belt 9 to operate; if the conveyor belt 9 deviates a lot during the bonding process, the conveyor belt 9 will deviate during operation, and the deviation correction mechanism 2 needs to be adjusted to adjust the deviated conveyor belt 9 to the upper tensioning idler wheel 44 and the lower tensioning idler wheel 4 5 , the first main guide wheel 6, the second main guide wheel 7 and the required auxiliary guide wheel 8, that is, by rotating the screw 24 through the hand wheel 26, thereby driving the outer spherical bearing 21 with the slider seat to move up and down in the slide groove 15 of the panel 10, which can drive the correction wheel 20 to swing up and down to achieve the correction effect. After running for a period of time, the correction wheel 20 is slowly adjusted back to its initial position. During the process of the correction wheel 20 returning to its original position, due to the action of the waist drum guide wheel 5, the conveyor belt 9 will also remain on the upper tensioning idler wheel 44 and the lower tensioning idler wheel 4 5 , the first leading wheel 6 and the second leading wheel 7 and the required auxiliary guide wheel 8 until the conveyor belt 9 runs smoothly, so as to achieve the pre-stretching and shaping effect of the conveyor belt 9, and then stop the driving wheel driving mechanism, and control the right end of the cylinder 42 in the tensioning mechanism 4 to intake air, so that the piston rod of the cylinder 42 retracts to the left, and the tensioning wheel seat 43 is used to move the tensioning wheel 40 to the left to loosen the conveyor belt 9, and then remove the conveyor belt 9 and install it on the conveying equipment, and then the conveying equipment can be officially put into operation.

[0046] The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Those skilled in the art may make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also fall within the scope of the present invention and should be defined by the claims.

Claims

1. A pre-stretching and shaping device for a conveyor belt, comprising a bracket, a deviation-correcting mechanism, a driving wheel mechanism, a tensioning mechanism, a waist-drum-shaped guide wheel, a first main guide wheel, a second main guide wheel, and a plurality of auxiliary guide wheels; characterized in that: The bracket includes four columns, a rectangular bottom plate fixed to the top of the four columns, and a left end longitudinal wall plate and a right end longitudinal wall plate fixed to the left and right ends of the top surface of the bottom plate in a one-to-one correspondence. The bracket also includes a panel fixed between the front end surface of the left end longitudinal wall plate and the front end surface of the right end longitudinal wall plate, and a sliding groove is vertically provided on the left top surface of the panel; The correction mechanism includes an outer spherical bearing with a slider seat, a nut block, a positioning ring, a screw, a handwheel, a positioning pin, a support plate, an outer spherical bearing with a diamond seat and a correction wheel; the outer spherical bearing with a slider seat is installed in the slide groove; the nut block is installed on the top surface of the slide groove of the panel; the positioning ring is arranged between the top of the slider seat of the outer spherical bearing with the slider seat and the bottom of the adjustment seat, and a through hole connected to the inner hole of the positioning ring is radially opened in the middle of the outer surface of the positioning ring; the screw is installed in the threaded hole of the nut block, and a pin hole is radially opened in the lower part of the screw, and the lower end of the screw passes through the inner hole of the adjustment seat of the outer spherical bearing with the slider seat in sequence. and the inner hole of the positioning ring; the handwheel is installed at the top of the screw; the positioning pin is inserted into the through hole of the positioning ring and the pin hole of the screw, so that the screw is slidably connected with the outer spherical bearing with slider seat; the support plate includes a lower vertical part, a horizontal part and an upper vertical part, and is a lying Z-shaped structure. The lower vertical part of the support plate is fixed on the front side surface of the panel and is located below the slide groove; the outer spherical bearing with diamond seat and the outer spherical bearing with slider seat are coaxially installed on the front side surface of the upper vertical part of the support plate; the correction wheel is installed between the outer spherical bearing with slider seat and the outer spherical bearing with diamond seat and is located above the horizontal part of the support plate; The driving wheel mechanism includes a driving wheel mounted on the front side of the panel of the bracket through a bearing and located to the lower left of the correcting wheel, and a driving wheel driving mechanism mounted between the tail of the rotating shaft of the driving wheel and the bottom plate of the bracket; The cam-type guide wheel is installed on the front side of the panel and is located below the driving wheel, and the cam-type guide wheel is located above the driving wheel. The first capstan is mounted on the front side of the panel and is located to the right of the lower idler tensioning wheel; The second leading wheel is installed on the front side of the panel and is located at the lower left of the correcting wheel, and the second leading wheel is located at the upper right of the driving wheel; A plurality of auxiliary guide wheels are mounted in a staggered arrangement on the middle right portion of the front side of the panel; The conveyor belt first passes around the driving wheel counterclockwise, then passes around the waist drum guide wheel clockwise, then passes around the upper tension idler wheel, the lower tension idler wheel and the first main guide wheel counterclockwise, then passes around several auxiliary guide wheels, then passes around the deviation correction wheel counterclockwise, and finally passes around the second main guide wheel clockwise; The wrap angle of the conveyor belt on the driving wheel is at least 180 degrees, and the wrap angle of the conveyor belt on the deviation-correcting wheel is 160 degrees to 170 degrees.

2. The pre-stretching and shaping device for a conveyor belt according to claim 1, characterized in that: The bracket further includes a support rod spanning between the rear upper corner portion of the left end longitudinal wall plate and the rear upper corner portion of the right end longitudinal wall plate.

3. The pre-stretching and shaping device for a conveyor belt according to claim 1, characterized in that: The driving wheel driving mechanism includes a motor mounted on the base plate of the bracket through adjusting bolts and nuts, a driving synchronous pulley mounted on the output shaft of the motor, a passive synchronous pulley mounted on the tail of the rotating shaft of the driving wheel, and a synchronous belt wrapped between the driving synchronous pulley and the passive synchronous pulley.

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