A device for handling cement bags conveyed on a belt conveyor

Abstract

The present invention discloses a device for processing continuous bag cement conveyed on a belt conveyor, the device is installed on the belt conveyor of a packaging production line, and comprises a first proximity switch, a continuous bag judgment switch, a support, a bracket, a flap, a cylinder, a support plate, a second proximity switch bracket, a second proximity switch, a door frame, a pull rod and a controller; the support, the bracket, the second proximity switch bracket and the door frame are arranged side by side in sequence; the controller is installed on the support; wherein the continuous bag judgment switch and the first proximity switch are installed on the support; one end of the flap is installed on one side of the bracket, and the cylinder and the support plate are installed on the other side of the bracket; the piston rod of the cylinder extends to the other end of the flap and is hinged thereto; the second proximity switch bracket is provided with a second proximity switch; the door frame is installed with one end of the pull rod, and the other end of the pull rod is hinged to the support plate; the first proximity switch, the second proximity switch and the cylinder are electrically connected to the controller respectively.

Description

Technical Field

[0001] The present invention relates to a device for handling the transportation of continuous cement bags on a belt conveyor. Background Art

[0002] Cement enters the bag stacking machine through a bagging machine, a bag receiving machine, a bag cleaning machine, a belt conveyor, and a bag pusher. After the bag stacking machine stacks the bags, a special forklift is responsible for transporting them into the train carriage to complete the loading process.

[0003] The inventor of the present invention found that the bag stacking machine mainly consists of a bag stacking machine frame, a flap valve, a bag stacking machine mechanism, a counterweight mechanism, etc. Each station of the bag stacking machine can stack up to 12 cement bags at most. There are 2 small belt conveyors, 2 flap valves, and 2 bag stacking stations on each side of the axis of the bag stacking machine.

[0004] During the transportation of cement bags, for example, when there are 2 cement bags approaching the bag pusher or the flap valve of the bag stacking machine, and when the first cement bag just passes through the bag pusher or the flap valve, the bag pusher or the flap valve immediately operates, and then the second cement bag can just pass through the bag pusher or the flap valve smoothly. When the above conditions are met, the minimum distance between these 2 cement bags passing through the bag pusher is set as L.

[0005] However, in actual production, the actual distance between two adjacent cement bags is S. We found that when S≧L, the cement bags can all pass through the bag pusher or the flap valve of the bag stacking machine smoothly; when S<L (the phenomenon when S<L is hereinafter referred to as the continuous bag phenomenon), and when these two cement bags just pass through the bag pusher or the flap valve of the bag stacking machine, and the bag pusher or the flap valve just operates at this time, the cement bags will jam the bag pusher or the flap valve, causing a blocked bag and unable to continue production.

[0006] In addition, the cement bags coming out of the bagging machine generally need to be randomly inspected for the weight of the cement bags on time. At least 3 bags are randomly inspected for each bagging machine, and it is a manual random inspection. Therefore, the continuous bag phenomenon will inevitably occur, and even the phenomenon of 3 consecutive cement bags connected end to end will appear. So in the production process of loading bagged cement, there will be more continuous bag phenomena every time the bag weight is randomly inspected. At least 2 times of continuous bags will jam the bag pusher or the flap valve of the bag stacking machine, making the bag stacking machine unable to stack bags continuously, resulting in production interruption. Each time it takes at least 3 minutes to manually handle the problem of jammed bags to resume production, which greatly reduces the loading efficiency. Summary of the Invention

[0007] The purpose of the present invention is to provide a device for handling the transportation of continuous cement bags on a belt conveyor in view of the defects of the prior art.

[0008] To achieve the above object of the present invention, the following technical solutions are adopted:

[0009] A device for handling the conveyance of cement in connected packages on a belt conveyor, comprising a first proximity switch, a connected-package judgment switch, a support, a bracket, a flap, a cylinder, a support plate, a second proximity switch bracket, a second proximity switch, a gantry, a pull rod, and a controller; the support, the bracket, the second proximity switch bracket, and the gantry are arranged side by side in sequence; the controller is installed on the bracket;

[0010] Among them, the support is equipped with a connected-package judgment switch and a first proximity switch, and the connected-package judgment switch can be in reset swing contact with the first proximity switch;

[0011] One end of a flap is installed on one side of the bracket, and the flap can swing relative to the bracket. On the other side of the bracket, a cylinder and a support plate are installed, and both the cylinder and the support plate can swing relative to the bracket; the piston rod of the cylinder extends to the other end of the flap and is hinged thereto;

[0012] The second proximity switch bracket is provided with a second proximity switch; one end of a pull rod is installed on the gantry, and the other end of the pull rod is hinged to the support plate; the support plate can be in reset swing contact with the second proximity switch; and the pull rod can slide relative to the gantry; the first proximity switch, the second proximity switch, and the cylinder are respectively electrically connected to the controller.

[0013] Working principle:

[0014] The actual distance between two packages of cement is S, and the distance value between the first package of cement and the second package of cement is L;

[0015] Treatment of connected-package phenomenon:

[0016] When S < L, the controller controls the driving cylinder, the piston rod of the cylinder extends outwards, thereby pushing the flap to swing towards the conveyor belt and blocking the second package of cement being conveyed on the conveyor belt; when the first package of cement passes through the support plate, the support plate is separated from the second proximity switch, the second proximity switch loses the signal, the controller controls the cylinder to retract the piston rod, and the piston rod drives the flap to swing away from the conveyor belt, thereby releasing the block of the flap on the second package of cement, and the second package of cement continues to move towards the support plate following the conveyor belt;

[0017] No connected-package phenomenon:

[0018] When S ≥ L, when the first package of cement reaches the support plate and triggers the proximity switch to obtain a signal, at this time the second package of cement has not reached the position of the connected-package judgment switch and will not have a pushing effect on the connected-package judgment switch, the connected-package judgment switch has no contact with the first proximity switch, the first proximity switch has no signal, and the controller will have no output signal, that is, the cylinder and the flap have no action.

[0019] As is common knowledge in the art, the controller used in this solution and the operation control of the devices connected thereto are mature single-chip microcomputer technologies, which can be easily purchased from the market and can be used after simple debugging.

[0020] As a further improvement of the technical solution, a device for processing continuous bags of cement conveyed on a belt conveyor according to the present invention also includes a judgment switch sensor plate, wherein the judgment switch sensor plate is arranged on the continuous bag judgment switch, and the continuous bag judgment switch drives the judgment switch sensor plate to swing, and the judgment switch sensor plate is in swinging contact with the first proximity switch.

[0021] As a further improvement of the technical solution, a device for handling continuous bags of cement conveyed on a belt conveyor according to the present invention also includes a support, a connecting rod with a connecting rod nut and a spring; the support is arranged on a support; one end of the connecting rod passes through the support, the spring and is hinged to the continuous bag judgment switch in sequence, and the other end is threadedly connected to the connecting rod nut.

[0022] As a further improvement of the technical solution, a device for processing continuous packages of cement conveyed on a belt conveyor of the present invention also includes a pallet sensor plate; the pallet sensor plate is arranged on the pallet, and the pallet drives the pallet sensor plate to swing, and the pallet sensor plate is in swinging contact with the second proximity switch.

[0023] As a further improvement of the technical solution, a device for handling continuous packages of cement transported on a belt conveyor according to the present invention also includes a pallet support, a pallet hinge and a tie rod support; the pallet support is installed on a bracket; the pallet hinge and the tie rod support are respectively arranged on the pallet; the pallet hinge is hingedly connected to the pallet support; the tie rod support is hingedly connected to the tie rod.

[0024] As a further improvement of the technical solution, a device for handling continuous packages of cement on a belt conveyor according to the present invention also includes a flap shaft and a B shaft sleeve; the two ends of the flap shaft are respectively installed on the bracket through the B shaft sleeve; and a flap is fixedly installed on the flap shaft.

[0025] As a further improvement of the technical solution, a device for handling continuous packages of cement conveyed on a belt conveyor of the present invention further includes at least one flap connecting rod; one end of the flap connecting rod is fixedly installed on the flap shaft, and the other end thereof is fixedly installed on the flap.

[0026] As a further improvement of the technical solution, a device for processing continuous packages of cement on a belt conveyor according to the present invention also includes a cylinder seat, an A-shaft sleeve and a rotating shaft; the cylinder seat is used to fix the cylinder, and a rotating shaft is provided at both ends thereof, and the rotating shaft is installed on the bracket through the A-shaft sleeve.

[0027] As a further improvement of the technical solution, an external thread and a pull rod adjusting nut are provided on the end of the pull rod away from the support plate; the pull rod adjusting nut is threadably connected to the external thread.

[0028] As a further improvement of the technical solution, a device for handling the conveyance of cement bags in series on a belt conveyor according to the present invention further includes a limiting member; the limiting member is fixedly installed on the bracket and is used to block the upward swing angle of the flap.

[0029] Advantages of the present invention over the prior art:

[0030] 1. The present invention solves the problem of cement bags in series during conveyance, and can effectively adjust the spacing S between cement bags to resume to the L value; when S < L, the controller controls the driving cylinder, and the piston rod of the cylinder extends outwards, thereby pushing the flap to swing towards the conveyor belt and blocking the second cement bag being conveyed on the conveyor belt; when the first cement bag passes through the pallet, the pallet is separated from the second proximity switch, and the second proximity switch loses the signal. The controller controls the cylinder to retract the piston rod, and the piston rod drives the flap to swing away from the conveyor belt, thereby releasing the block of the flap on the second cement bag, and the second cement bag continues to move towards the pallet following the conveyor belt; when S ≥ L, when the first cement bag reaches the pallet and triggers the proximity switch to obtain a signal, at this time, the second cement bag has not reached the position of the series-bag judgment switch and will not push the series-bag judgment switch. The series-bag judgment switch is not in contact with the first proximity switch, and the first proximity switch has no signal. The controller will have no output signal, that is, the cylinder and the flap have no action.

[0031] 2. The device of the present invention can be applicable to the conveyance of bagged cement on a belt conveyor, and can also be applied to the conveyance field of bagged items such as chemical fertilizers and white sugar on a belt conveyor. Its manufacturing process is simple, the cost is relatively low, it has a good development prospect, and it is suitable for popularization and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally denoted by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0033] Figure 1 It is a schematic structural diagram of a device for handling the conveyance of cement bags in series on a belt conveyor according to the present invention;

[0034] Figure 2 It is a top view structural diagram of the present invention;

[0035] Figure 3 It is a schematic structural diagram of the flap and the pallet of the present invention;

[0036] Figure 4 It is a schematic structural diagram of the series-bag judgment switch of the present invention;

[0037] Figure 5 for Figure 2 The structural diagram of A in the figure;

[0038] Figure 6 for Figure 5 Structural diagram of the middle chute;

[0039] The names and serial numbers of the components in the figure are: belt conveyor bracket, 2- roller, 3- conveyor belt, 4- second cement bag, 5- rotating shaft, 6- first proximity switch, 61- first proximity switch support, 7- flap shaft, 8- flap, 81- flap connecting rod, 82- hinged support, 9- cylinder seat, 10- A sleeve, 101- rotating shaft, 11- cylinder, 12- second proximity switch, 13- tie rod, 131- tie rod adjustment nut, 14- buffer pad, 15- door frame, 151- slideway, 17- first cement bag, 16- support plate, 161- pull rod support, 162- support plate sensor, 163- support plate hinge, 18- second proximity switch bracket, 181- second proximity switch support, 19- bracket, 20- package connection judgment switch, 201- judgment switch sensor, 202- support seat, 203- sleeve, 21- support, 22- connecting rod, 221- connecting rod support, 222- connecting rod nut, 23- spring, 24- B sleeve, 25- support plate frame, 26- support plate shaft, 27- pull rod pin, 28- Y joint, 29- pin, 30- support plate, 31- limiter, 32- support, 33- controller. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present application.

[0041] Embodiment 1:

[0042] like Figures 1 to 6 As shown, a device for processing continuous bag cement conveyed on a belt conveyor includes a belt conveyor support 1, at least two rollers 2, a conveyor belt 3, a first proximity switch 6, a continuous bag judgment switch 20, a support 21, a support 19, a flap 8, a cylinder 11, a support plate 16, a second proximity switch support 18, a second proximity switch 12, a door frame 15, a pull rod 13 and a controller 33;

[0043] The support 21, the bracket 19, the second proximity switch bracket 18, and the door frame 15 are sequentially installed on the edge of the belt conveyor bracket 1;

[0044] The idler rollers 2 are arranged longitudinally side by side along the belt conveyor support 1, and a conveyor belt 3 is installed on the idler rollers 2, and the conveyor belt 3 is drivingly connected to the idler rollers 2;

[0045] The controller 33 is installed on the support 19;

[0046] Wherein, a continuous bag judgment switch 20 and a first proximity switch 6 are installed on the support 21, and the continuous bag judgment switch 20 can be reset and swingingly contacted with the first proximity switch 6;

[0047] One end of a flap 8 is installed on one side of the support 19, and the flap 8 can swing relative to the support 19, and a cylinder 11 and a support plate 16 are installed on the other side of the support 19, and the cylinder 11 and the support plate 16 can both swing relative to the support 19; The piston rod of the cylinder 11 extends to the other end of the flap 8 and is hinged thereto;

[0048] The second proximity switch bracket 18 is provided with a second proximity switch 12;

[0049] One end of a pull rod 13 is installed on the gantry 15, and the other end of the pull rod 13 is hinged to the support plate 16; The support plate 16 can be reset and swingingly contacted with the second proximity switch 12; And the pull rod 13 can slide and telescopically relative to the gantry 15;

[0050] The first proximity switch 6, the second proximity switch 12, and the cylinder 11 are respectively electrically connected to the controller 33.

[0051] In order to facilitate the cement bag to push the support plate to swing, the structure of the support plate is: the support plate 16 is provided with a bent end and a horizontal end, and the included angle between the bent end and the horizontal end is: 90° to 180°. The horizontal end can be arranged parallel to the conveyor belt 3, and the bent end is upturned relative to the horizontal end, and the bent end is used to touch the cement bag. When the swinging height of the support plate 16 is equal to the top surface height of the cement bag, the horizontal end presses against the top surface of the cement bag, so that the support plate and the second proximity switch 12 maintain good contact, and the second proximity switch 12 sends a stable signal to the controller 33. At this time, it is beneficial for the cement bag to pass through, and it is also beneficial for the cement bag to push the bent end to drive the support plate 16 to swing.

[0052] When installing and positioning the support 21, keep the spacing value between the cement bag 4 and the cement bag 17 as L. When the cement bag 17 triggers the second proximity switch 12 to obtain a signal, the cement bag 4 can just trigger the first proximity switch 6 to obtain a signal.

[0053] Specific working mode:

[0054] In the case of continuous bags (i.e., when S < L):

[0055] The first bag of cement bag 17 passes through the conveyor belt 3 from Figure 1The left-to-right conveyance shown in the figure, when reaching Figure 1 the position of the first cement bag 17 shown in the figure, the cement bag presses upward against the pallet 16, and the pallet 16 rises to a position level with the top of the first cement bag 17. At this time, the pallet 16 touches the second proximity switch 12 to obtain a signal;

[0056] Meanwhile, the second cement bag 4 is continuously conveyed to the right by the conveyor belt 3. Since the distance S between the second cement bag 4 and the first cement bag 17 is < L, the second cement bag 4 just pushes open the continuous-bag judgment switch 20 at this time, and the continuous-bag judgment switch 20 triggers the first proximity switch 6 to obtain a signal; in this way, both the first proximity switch 6 and the second proximity switch 12 transmit signals to the controller 33 at the same time. The controller 33 drives the cylinder 11 according to the received signals. The piston rod of the cylinder 11 extends, and the piston rod pushes the flap 8 to swing towards the conveyor belt 3 until it touches the cement bag, and the flap 8 blocks the second cement bag 4 from moving to the right; only when the first cement bag 17 completely passes through the pallet 16, the pallet 16 falls back to its original position by its own gravity. At this time, the second proximity switch 12 loses the signal, and the controller 33 controls the piston rod of the cylinder 11 to retract, and the flap 8 swings away from the conveyor belt 3, and the flap 8 releases the block on the second cement bag, and the second cement bag 4 continues to be conveyed forward;

[0057] When there is no continuous-bag phenomenon (i.e., when S≧L):

[0058] The first cement bag 17 is conveyed to the right by the conveyor belt 3. The first cement bag 17 touches the pallet 16 and pushes the pallet 16 to swing upward. When the pallet 16 swings to a position level with the top of the first cement bag 17 and the pallet 16 triggers the second proximity switch 12 to obtain a signal at this time, since S≧L, the second cement bag 4 has not reached the position of the continuous-bag judgment switch 20 at this time, the continuous-bag judgment switch 20 has no external force acting on it and does not swing, the continuous-bag judgment switch 20 is not in contact with the first proximity switch 6, and the first proximity switch 6 has no signal. The controller 33 will have no output signal, that is, the cylinder 11 and the flap 8 will not act; therefore, the second cement bag 4 will directly pass through the flap 8 and continue to be conveyed forward to the bag pusher and the 4-station stacker.

[0059] Embodiment 2:

[0060] Compared with Embodiment 1, the difference is that: the device of the present invention further includes a judgment switch sensing piece 201.

[0061] As Figure 4 shown, the judgment switch sensing piece 201 is arranged on the continuous-bag judgment switch 20. The continuous-bag judgment switch 20 drives the judgment switch sensing piece 201 to swing, and the judgment switch sensing piece 201 swings and contacts the first proximity switch 6.

[0062] The judgment switch sensing sheet 201 is in an arc-shaped sheet shape. Driven by the connected package judgment switch 20, it realizes two working states of contact or disconnection with the first proximity switch 6.

[0063] The continuous bag judgment switch 20 is pushed by the cement bag transported on the conveyor belt 3 and swings on the support 21. When swinging, it drives the judgment switch sensor piece 201 to move toward the first proximity switch 6. When the judgment switch sensor piece 201 touches the bottom of the first proximity switch 6, the first proximity switch 6 sends a signal to the controller 33, and the controller 33 receives the signal, indicating that the cement bag on the conveyor belt 3 is being transported through the continuous bag judgment switch 20.

[0064] Embodiment 3:

[0065] Compared with the embodiment 1, the difference is that the device of the present invention further comprises a support member 32 , a connecting rod 22 with a connecting rod nut 222 , and a spring 23 .

[0066] like Figure 4 As shown, the support member 32 is arranged on the support 21; one end of the connecting rod 22 passes through the support member 32, the spring 23 and is hinged to the package connection judgment switch 20 in sequence, and the other end thereof is threadedly connected to the connecting rod nut 222.

[0067] The connecting rod 22 can swing and retract relative to the supporting member 32, which can facilitate the smooth swinging of the package connection judgment switch 20.

[0068] The connecting rod nut 222 can play a limiting role. By adjusting the position of the connecting rod nut 222 on the connecting rod 22, the angle of the package connection judgment switch 20 relative to the support 21 can be adjusted.

[0069] The spring 23 can push the bag-joining judgment switch 20 to reset. The spring 23 is located between the support member 32 and the bag-joining judgment switch 20. The cement bag moves toward the bag-joining judgment switch 20 on the conveyor belt 3. When the cement bag touches the bag-joining judgment switch 20, it pushes the bag-joining judgment switch 20 counterclockwise (in degrees). Figure 4 As shown in the figure, the upward swing is the counterclockwise swing, and the downward swing is the clockwise swing), the bag-connected judgment switch 20 presses the spring 23 toward the support member 32, and the spring 23 is elastically deformed by the compression; when the cement bag is separated from the bag-connected judgment switch 20, the bag-connected judgment switch 20 is subjected to the elastic deformation force of the spring 23, and the spring 23 pushes the bag-connected judgment switch 20 to reset.

[0070] Embodiment 4:

[0071] Compared with any one of the embodiments 1-3, the difference is that the device of the present invention further includes a support plate sensor sheet 162.

[0072] like Figure 3As shown, the support plate sensing piece 162 is disposed on the support plate 16 , and the support plate 16 drives the support plate sensing piece 162 to swing, and the support plate sensing piece 162 swings and contacts with the second proximity switch 12 .

[0073] The support plate 16 is pushed by the cement bag transported on the conveyor belt 3 and swings upward. The support plate 16 drives the support plate sensor 162 to swing toward the second proximity switch 12. When the support plate sensor 162 touches the bottom of the second proximity switch 12, the second proximity switch 12 sends a signal to the controller 33. After receiving this signal, the controller 33 can determine that a cement bag is passing through the support plate 16 at this time.

[0074] Embodiment 5:

[0075] Compared with any one of the embodiments 1-4, the difference lies in that a connection structure form between the support plate and the bracket and the pull rod is provided.

[0076] like Figure 1-3 As shown, the present invention further comprises a support plate support 30, a support plate hinge 163 and a tie rod support 161; the support plate support 30 is mounted on the bracket 19; the support plate hinge 163 and the tie rod support 161 are respectively arranged on the support plate 16; the support plate hinge 163 is hingedly connected to the support plate support 30; the tie rod support 161 is hingedly connected to the tie rod 13. It is conducive to the support plate 16 to swing under the push of the cement bag, and when the support plate is out of contact with the cement bag, the support plate can swing back to its original position by its own gravity.

[0077] Embodiment 6:

[0078] Compared with any one of the embodiments 1-5, the difference lies in that a hinged structure form between the flap and the bracket is provided.

[0079] like Figure 1-2 As shown, the present invention further comprises a flap shaft 7 and a B shaft sleeve 24; both ends of the flap shaft 7 are respectively mounted on the bracket 19 through the B shaft sleeve 24; the flap shaft 7 is fixedly mounted with a flap 8. The flap shaft can rotate on the B shaft sleeve 24, so the flap 8 can swing relative to the bracket 19.

[0080] Embodiment 7:

[0081] Compared with Embodiment 6, the difference is that the present invention further includes at least one flap connecting rod 81 .

[0082] like Figure 1-3 As shown, one end of the flap connecting rod 81 is fixedly mounted on the flap shaft 7 , and the other end thereof is fixedly mounted on the flap 8 .

[0083] The number of flap connecting rods 81 is usually 1 to 4, such as 2 or 3.

[0084] The flap connecting rod can not only facilitate the connection between the flap shaft 7 and the flap 8, but also improve the load-bearing capacity of the flap 8.

[0085] Embodiment 8:

[0086] Compared with any one of Examples 1-7, the difference lies in that a hinged structure of the cylinder and the bracket is provided.

[0087] like Figure 1-3 As shown, the present invention further comprises a cylinder seat 9, an A sleeve 10 and a rotating shaft 101; the cylinder seat 9 is used to fix the cylinder 11, and the two ends thereof are respectively provided with a rotating shaft 101, and the rotating shaft 101 is installed on the bracket 19 through the A sleeve 10. The rotating shaft 101 can rotate around the axis in the A sleeve 10, so that the cylinder 11 can swing relative to the bracket 19.

[0088] Embodiment 9:

[0089] Compared with any one of the embodiments 1-8, the difference lies in that a hinged structure of the cylinder and the flap is provided.

[0090] like Figure 3 As shown, the device of the present invention further includes an articulated support 82, a Y joint 28, and a pin 29; the Y joint 28 is articulated to the articulated support 82 through the pin 29, the Y joint 28 is arranged on the end surface of the piston rod extending out of the cylinder 11, and the articulated support 82 is fixedly mounted on the flap 8. The articulation of the articulated support 82 and the Y joint 28 can facilitate the cylinder 11 to pull and push the flap 8 to swing.

[0091] The position of the flap 8 can be fine-tuned by means of a Y-joint 28 mounted on the piston rod of the cylinder 11 .

[0092] Embodiment 10:

[0093] Compared with any one of the embodiments 1-9, the difference lies in that a structural form is provided in which one end of the pull rod extends out from the top of the door frame.

[0094] like Figure 1-3 As shown, the end of the pull rod 13 away from the support plate 16 is provided with an external thread and a pull rod adjustment nut 131; the pull rod adjustment nut 131 is threadedly connected with the external thread.

[0095] The tie rod adjustment nut 131 can facilitate the tie rod 13 to adjust the position of the support plate 16 .

[0096] Embodiment 11:

[0097] Compared with Example 10, the difference is that a buffer pad is added.

[0098] like Figure 1 and 3As shown, the buffer pad 14 is installed between the tie rod adjusting nut 131 and the door frame 15, and can be fixed on the door frame 15. The buffer pad 14 is used to support the tie rod adjusting nut 131, and can buffer the tie rod adjusting nut 131, so as to prevent the adjusting nut 131 from impacting the top of the door frame 15, thereby reducing the noise generated by the tie rod adjusting nut 131 impacting the door frame 15 and protecting the tie rod adjusting nut and the door frame.

[0099] Example 12

[0100] Compared with embodiments 1-11, the difference is that the device of the present invention further includes a limiting member 31.

[0101] like Figure 1 As shown, the stopper 31 is fixedly mounted on the bracket 19 to block the upward swing angle of the flap 8, thereby preventing the flap from continuing to swing due to the inertial force generated when the piston rod of the cylinder contracts.

[0102] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A device for handling cement bags transported on a belt conveyor. Features: It comprises a first proximity switch (6), a connected package judgment switch (20), a support (21), a bracket (19), a flap (8), a cylinder (11), a support plate (16), a second proximity switch bracket (18), a second proximity switch (12), a door frame (15), a pull rod (13) and a controller (33); The support (21), the bracket (19), the second proximity switch bracket (18), and the door frame (15) are arranged side by side in sequence; The controller (33) is mounted on the bracket (19); The support (21) is provided with a connected bag judgment switch (20) and a first proximity switch (6), and the connected bag judgment switch (20) can be resettable and swingably contacted with the first proximity switch (6); One side of the bracket (19) is connected to one end of the flap (8), and the flap (8) can swing relative to the bracket (19), while the other side of the bracket (19) is equipped with a cylinder (11) and a support plate (16), and the cylinder (11) and the support plate (16) can swing relative to the bracket (19); the piston rod of the cylinder (11) extends to the other end of the flap (8) and is hinged thereto; The second proximity switch bracket (18) is provided with a second proximity switch (12); The door frame (15) is provided with a pull rod (13) and connected to one end thereof, and the other end of the pull rod (13) is hinged to the support plate (16); the support plate (16) can be in resettable swing contact with the second proximity switch (12); and the pull rod (13) can slide relative to the door frame (15); The first proximity switch (6), the second proximity switch (12), and the cylinder (11) are electrically connected to the controller (33) respectively; It also comprises a judgment switch sensing piece (201), wherein the judgment switch sensing piece (201) is arranged on the package connection judgment switch (20), and the package connection judgment switch (20) drives the judgment switch sensing piece (201) to swing, and the judgment switch sensing piece (201) swings and contacts with the first proximity switch (6); It also includes a support plate induction sheet (162); the support plate induction sheet (162) is arranged on the support plate (16); the support plate (16) drives the support plate induction sheet (162) to swing; the support plate induction sheet (162) swings and contacts with the second proximity switch (12).

2. The device for processing cement bags transported on a belt conveyor according to claim 1, Features: It also includes a support member (32), a connecting rod (22) with a connecting rod nut (222), and a spring (23); The support member (32) is arranged on the support (21); One end of the connecting rod (22) sequentially passes through the support member (32), the spring (23) and is hinged to the bag connection judgment switch (20), while the other end is threadedly connected to the connecting rod nut (222).

3. The device for processing cement bags transported on a belt conveyor according to claim 1 or 2, Features: It also includes a support plate support (30), a support plate hinge (163) and a pull rod support (161); The support plate support (30) is mounted on the bracket (19); The support plate hinge (163) and the pull rod support (161) are respectively arranged on the support plate (16); The support plate hinge (163) is hingedly connected to the support plate support (30); The pull rod support (161) is hingedly connected to the pull rod (13).

4. The device for processing cement bags transported on a belt conveyor according to claim 3, Features: It also comprises a flap shaft (7) and a B shaft sleeve (24); both ends of the flap shaft (7) are respectively mounted on a bracket (19) via the B shaft sleeve (24); and a flap (8) is fixedly mounted on the flap shaft (7).

5. The device for processing cement bags transported on a belt conveyor according to claim 4, Features: It also includes at least one flap connecting rod (81); one end of the flap connecting rod (81) is fixedly mounted on the flap shaft (7), and the other end of the flap connecting rod (81) is fixedly mounted on the flap (8).

6. The device for processing cement bags transported on a belt conveyor according to claim 3, Features: It also includes a cylinder seat (9), an A-shaft sleeve (10) and a rotating shaft (101); The cylinder seat (9) is used for fixing and installing the cylinder (11), and has a rotating shaft (101) at both ends thereof. The rotating shaft (101) is installed on the bracket (19) via an A-sleeve (10).

7. The device for processing cement bags transported on a belt conveyor according to claim 1 or 2, Features: An end of the pull rod (13) away from the support plate (16) is provided with an external thread and a pull rod adjustment nut (131); The pull rod adjusting nut (131) is threadedly connected to match the external thread.

8. The device for processing cement bags transported on a belt conveyor according to claim 7, Features: It also includes a limiting member (31); the limiting member (31) is fixedly mounted on the bracket (19) and is used to block the angle at which the flap (8) swings upward.

Images