Automatic reject device for carton packer

Abstract

The application discloses a kind of automatic rejection devices of carton elevator, when ion detection machine detects that carton is short of package and photoelectric switch detects that short of package carton reaches rejection station, electric control box controls guide rod cylinder action to drive rejection seat and rejection block to move forward simultaneously, the end of rejection block of 2 cylinder rejection assembly is retracted inward under the action of spring tension simultaneously, clamps carton and continues to move forward, realizes the automatic detection of short of package carton, automatic rejection function;In addition, the carton that is rejected freely falls through rejection passage, and slows down on circular arc recovery groove, and finally stays at the tail of circular arc recovery groove, realizes carton automatic buffer sliding function;As described above, the automatic rejection device of carton elevator of the application can realize the automatic detection of carton, automatic rejection, automatic buffer sliding function, without manual climbing to take out short of package carton, eliminate the security risk of falling from height, at the same time, without stopping and waiting, improve the production efficiency of product.

Description

Technical Field

[0001] This invention relates to the field of cigarette production equipment technology, and in particular to an automatic rejection device for a cigarette pack lifting machine. Background Technology

[0002] In the tobacco industry, the photon-type missing pack detector of the cigarette carton elevator is installed on the elevator frame, about 1.8 meters above the ground. During normal production, when a missing pack of cigarettes is detected, the cigarette carton elevator will stop and alarm. It is necessary to manually climb up to remove the missing pack of cigarettes before the equipment can be restarted to continue production, which greatly affects production efficiency. Moreover, the operation of manually climbing up to remove the missing pack of cigarettes is difficult and poses a safety hazard of falling from a height. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an automatic rejection device for a cigarette pack lifting machine, which can realize the automatic detection, automatic rejection and automatic buffering of missing packs of cigarettes, improve the production efficiency of the product, eliminate the need for manual climbing to remove missing packs of cigarettes, and eliminate the safety hazard of falling from heights.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] An automatic rejection device for a cigarette pack lifting machine includes a cigarette pack lifting assembly, a deceleration slide assembly, an electrical control assembly, and two cylinder rejection assemblies. The cigarette pack lifting assembly includes a lifting frame with a lifting chain for transporting cigarette packs; a rejection channel is located at the front of the lifting chain. The deceleration slide assembly includes an arc-shaped recovery groove located below the rejection channel. The electrical control assembly includes an ion detector, a photoelectric switch, and an electrical control box. The ion detector is mounted on the lifting frame and is used to detect whether there are missing packs in the cigarette packs. The photoelectric switch is mounted on the lifting frame and above the ion detector, and is used to detect whether missing packs of cigarette packs have been transported to the rejection station. The two cylinder rejection assemblies are symmetrically installed on both sides of the lifting frame, located above the ion detector and below the photoelectric switch. Each cylinder rejection assembly includes a cylinder seat, a guide rod cylinder, a rejection seat, a rejection block, a swing block, and a single-action pressing mechanism. The cylinders, including the guide rod cylinder, are fixedly mounted on the lifting frame via the cylinder seat. The guide rod of the guide rod cylinder is fixedly connected to the rejection seat. The rejection seat is rotatably connected to the rejection block via a rotating shaft. A spring connects the end of the rejection block to the rejection seat. The swing block is fixedly connected to the shaft head. The single-acting pressing cylinder is fixedly mounted on the rejection seat. The guide rod of the single-acting pressing cylinder is connected to the swing block via a floating connecting plate. The electrical control box is communicatively connected to the ion detector and the photoelectric switch. When the ion detector detects a missing pack of cigarettes and the photoelectric switch detects that the missing pack of cigarettes is being transported to the rejection station, the electrical control box controls the guide rod cylinder to move, causing the rejection seat and the rejection block to move forward simultaneously. Under the spring tension, the ends of the rejection blocks of the two cylinder rejection components retract inward simultaneously to clamp the missing pack of cigarettes. The rejection block clamps the cigarettes and continues to move forward until it reaches the predetermined position. The electrical control box then controls the single-acting pressing cylinder to open the rejection block outward to release the cigarettes.

[0006] Preferably, the elevator chain is provided with horizontal stops at intervals, and the distance between two adjacent horizontal stops is greater than the length of the cigarette bar; guide blocks are provided on both sides of the elevator chain, and the guide blocks are embedded in the guide grooves of the elevator frame.

[0007] Preferably, an upper cover and a lower cover are arranged side by side on the front side of the lifting frame. The surface of the front side plate of the upper cover forms a 60° angle with the horizontal plane, and the surface of the front side plate of the lower cover is parallel to the lifting frame. A detection hole is provided above the upper cover, and the photoelectric switch detects whether a pack of cigarettes with missing packages has been delivered to the rejection station through the detection hole. Openings for installing the cylinder rejection assembly are symmetrically provided on the left and right sides below the upper cover. A partition is provided inside the lower cover, which divides the internal space of the lower cover into two parts. The rejection channel is formed between the partition and the front side plate of the lower cover.

[0008] Preferably, the upper end of the partition is connected to a guide plate, and a check baffle is provided above the guide plate. The two ends of the check baffle are rotatably connected to the left and right sides of the lower cover. A limiting plate is provided on the inner side of the partition, and the limiting plate is located below the check baffle.

[0009] Preferably, both the upper and lower protective covers are made of acrylic.

[0010] Preferably, the deceleration slide assembly further includes a flexible damping deceleration wheel, which is fixedly installed at the inlet of the arc-shaped recycling trough via a deceleration wheel shaft.

[0011] Preferably, the arc-shaped recovery trough is provided with a first strip-shaped hole and a second strip-shaped hole. The arc-shaped recovery trough is fixedly connected to the lifting frame through the first strip-shaped hole, and the reduction wheel shaft is fixed in the second strip-shaped hole on the arc-shaped recovery trough by screws.

[0012] Preferably, the photoelectric switch is mounted on the hoisting frame via a detection bracket. The hoisting frame has U-shaped grooves on both the left and right sides. The detection bracket has a third strip hole. The photoelectric switch is fixedly mounted on the detection bracket. The detection bracket is fixedly mounted in the U-shaped groove on the left or right side of the hoisting frame via the third strip hole.

[0013] Preferably, the cylinder rejection assembly further includes a sheet metal pad, the rejection block is fixed on the sheet metal pad, the sheet metal pad is fixedly connected to the rotating shaft, two bearings are installed on the rotating shaft, the two bearings are located on opposite sides of the sheet metal pad, and the rotating shaft is connected to the rejection seat through the bearings.

[0014] Preferably, the rejection block is made of urethane adhesive and has a strip-shaped connecting hole, through which the rejection block is connected to the sheet metal backing plate screw.

[0015] Preferably, the outer side of the rejection seat is provided with a bearing cover plate for fixing the bearing, and the guide rod cylinder is provided with a magnetic switch, which is communicatively connected to the electrical control box.

[0016] Preferably, the floating connecting plate includes a first connecting plate, a second connecting plate perpendicularly connected to the first connecting plate, and a third connecting plate perpendicularly connected to the second connecting plate. The guide rod of the single-acting pressing cylinder is provided with an external thread, and the guide rod of the single-acting pressing cylinder is threadedly connected to the first connecting plate. The swing block is provided with a swing connecting hole, and the third connecting plate is placed in the swing connecting hole.

[0017] The beneficial technical effects of this invention are as follows: In the aforementioned automatic rejection device for cigarette pack lifting machines, when the ion detector detects a missing pack of cigarettes and the photoelectric switch detects that the missing pack has reached the rejection station, the control box controls the guide rod cylinder to move, causing the rejection seat and rejection block to move forward simultaneously. Under the action of spring tension, the ends of the rejection blocks in the two cylinder rejection components simultaneously retract inward to clamp the missing pack of cigarettes. The rejection block continues to move forward with the cigarettes clamped until it reaches the predetermined position. The control box then controls the single-acting pressing cylinder to open the rejection block outward to release the cigarettes, thus achieving… The invention features an automatic detection and rejection function for cigarette packs with missing packs. Furthermore, after the rejected cigarette packs fall freely through the rejection channel, they slide on an arc-shaped recovery trough to decelerate and eventually stop at the end of the trough, achieving an automatic buffering and sliding function for cigarette packs with missing packs. In summary, the automatic rejection device of the cigarette pack elevator of this invention can achieve automatic detection, automatic rejection, and automatic buffering and sliding functions for cigarette packs with missing packs, eliminating the safety hazard of falling from heights without requiring manual climbing to retrieve them. Simultaneously, it eliminates the need for machine downtime, improving production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the automatic rejection device of the cigarette bar lifting machine of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the lower cover of the automatic rejection device of the cigarette bar lifting machine of the present invention;

[0020] Figure 3 This is a schematic diagram of the cylinder rejection assembly of the present invention;

[0021] Figure 4 This is an exploded structural diagram of the cylinder rejection assembly of the present invention.

[0022] Reference numerals: 10. Hoist frame; 11. Guide groove; 12. U-shaped groove; 20. Hoist chain; 21. Horizontal stop; 30. Removal channel; 40. Upper cover; 41. Front side plate of upper cover; 42. Detection hole; 43. Opening; 50. Lower cover; 51. Front side plate of lower cover; 52. Partition; 53. Guide plate; 54. Check baffle; 55. Limiting plate; 100. Cigarette strip; 210. Arc-shaped recovery groove; 211. First strip hole; 212. First strip hole; 220. Flexible damping reduction wheel; 230. Reduction wheel shaft; 310. Electrical control box; 320. Ion detector; 330. Photoelectric sensor 340. Switch; 341. Detection bracket; 400. Third strip hole; 410. Cylinder rejection assembly; 411. Cylinder seat; 412. Cylinder seat side plate; 413. Rounded corner; 420. Guide rod cylinder; 421. Magnetic switch; 430. Rejection seat; 440. Rejection block; 441. Sheet metal pad; 442. Strip connecting hole; 450. Swing block; 451. Swing connecting hole; 460. Single-acting extrusion cylinder; 470. Rotating shaft; 471. Bearing; 472. Bearing cover plate; 480. Spring; 490. Floating connecting plate; 491. First connecting plate; 492. Second connecting plate; 493. Third connecting plate. Detailed Implementation

[0023] To enable those skilled in the art to more clearly understand the purpose, technical solution, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] like Figure 1-4 As shown, in one embodiment of the present invention, the automatic rejection device of the cigarette lifting machine includes a cigarette lifting component, a deceleration slide component, an electronic control component, and two cylinder rejection components 400.

[0025] The cigarette pack lifting assembly includes a lifting frame 10, on which a lifting chain 20 for transporting cigarette packs 100 is provided. A rejection channel 30 is provided on the front side of the lifting chain 20. The deceleration slide assembly includes an arc-shaped recovery groove 210, which is located below the rejection channel 30. The electrical control assembly includes an ion detector 320, a photoelectric switch 330, and an electrical control box 310. The ion detector 320 is mounted on the lifting frame 10 and is used to detect whether there are missing packs in the cigarette packs 100. The photoelectric switch 330 is mounted on the lifting frame 10 and located above the ion detector 320, and is used to detect whether cigarette packs with missing packs have been transported to the rejection station.

[0026] The two cylinder rejection assemblies 400 are symmetrically installed on both sides of the lifting frame 10. The cylinder rejection assemblies 400 are located above the ion detector 320 and below the photoelectric switch 330. Each cylinder rejection assembly 400 includes a cylinder seat 410, a guide rod cylinder 420, a rejection seat 430, a rejection block 440, a swing block 450, and a single-acting push-out cylinder 460. Two cylinder seat side plates 411 extend forward from the front ends of the cylinder seat 410, and the front ends of the cylinder seat side plates 411 are provided with rounded corners 412. The guide rod cylinder 420 is fixedly installed on the lifting frame 10 via the cylinder seat 410. The guide rod of the guide rod cylinder 420 is connected to... The rejection seat 430 is fixedly connected, and the rejection seat 430 is rotatably connected to the rejection block 440 through a rotating shaft 470. A spring 480 is connected between the end of the rejection block 440 and the rejection seat 430. The swing block 450 is fixedly connected to the shaft head of the rotating shaft 470. The single-acting pressing cylinder 460 is fixedly installed on the rejection seat 430, and the guide rod of the single-acting pressing cylinder 460 is connected to the swing block 450 through a floating connecting plate 490. The electrical control box 310 is communicatively connected to the ion detector 320 and the photoelectric switch 330. When the ion detector 320 detects that the cigarette pack 100 is missing a pack and the photoelectric switch 330 detects that the missing pack of cigarette pack 100 is being transported to the rejection station, the electrical control box 310 controls the guide rod cylinder 420 to move forward simultaneously, causing the rejection seat 430 and the rejection block 440 to move forward simultaneously. Under the tension of the spring 480, the ends of the rejection blocks 440 of the two cylinder rejection components 400 retract inward simultaneously to clamp the missing pack of cigarette pack 100. The rejection blocks 440 clamp the cigarette pack 100 and continue to move forward until they reach the predetermined position. The electrical control box 310 then controls the single-acting pressing cylinder 460 to open outward and release the cigarette pack 100.

[0027] In the embodiment shown in the attached drawings, the width of the elevator chain 20 is greater than the width of the cigarette pack 100. Guide blocks (not shown) are provided on both sides of the elevator chain 20, and these guide blocks are embedded in the guide grooves 11 of the elevator frame 10, requiring a clearance fit. Horizontal stops 21 are spaced apart on the elevator chain 20, with the distance between two adjacent horizontal stops 21 greater than the length of the cigarette pack 100. The cigarette pack 100 is placed vertically on the horizontal stops 21 of the elevator chain 20, and the drive pulley drives the elevator chain 20 upwards, thus lifting the cigarette pack 100.

[0028] The lifting frame 10 has an upper cover 40 and a lower cover 50 arranged side by side on its front side. In the embodiment shown in the figure, the upper cover 40 and the lower cover 50 are both made of acrylic. Of course, in other embodiments of the present invention, the upper cover 40 and the lower cover 50 can also be made of other materials, such as stainless steel.

[0029] The surface of the front side plate 41 of the upper cover forms a 60° angle with the horizontal plane to prevent the cigarette packs 100 from tilting outwards and falling. In the embodiment shown in the attached drawings, detection holes 42 are symmetrically provided on the left and right sides above the upper cover 40. The photoelectric switch 330 detects whether a cigarette pack 100 with a missing pack has been conveyed to the rejection station through the detection holes 42. Of course, in other embodiments of the present invention, the detection hole 42 can also be provided on either the left or right side above the upper cover 40. The lower left and right sides of the upper cover 40 are symmetrically provided with openings 43 for installing the cylinder rejection assembly 400. The size of the openings 43 must meet the size requirements of the width of the cigarette pack 100 moving outwards.

[0030] The surface of the front side plate 51 of the lower cover is parallel to the lifting frame 10. The lower cover 50 is provided with a partition 52, which divides the internal space of the lower cover 50 into two vertical channels. The rejection channel 30 is formed between the partition 52 and the front side plate 51 of the lower cover.

[0031] In a preferred embodiment of the present invention, a guide plate 53 is connected to the upper end of the partition 52, and a check baffle 54 is provided above the guide plate 53. The two ends of the check baffle 54 are rotatably connected to the left and right sides of the lower cover 50 by pins. A limiting plate 55 is provided inside the partition 52, and the limiting plate 55 is located below the check baffle 54. When the elevator chain 20 lifts the cigarette pack 100 upwards, the cigarette pack 100 can push open the check baffle 54 to achieve normal lifting of the cigarette pack 100. When the cylinder rejection assembly 400 rejects the cigarette pack 100 with missing packs, the cigarette pack 100 is blocked by the check baffle 54 and cannot fall into the channel on one side of the elevator chain 20. Under the inclined guiding action of the check baffle 54 and the guide plate 53, it finally enters the rejection channel 30, thereby ensuring that the cigarette pack 100 with missing packs can accurately enter the rejection channel 30.

[0032] In the embodiment shown in the accompanying drawings, the arc-shaped recovery trough 210 is disposed below the rejection channel 30. The arc-shaped recovery trough 210 has a first strip-shaped hole 211, and is fixedly mounted on the lifting frame 10 through the first strip-shaped hole 211. The tilt angle of the arc-shaped recovery trough 210 can be adjusted vertically through the first strip-shaped hole 211, for example, adjusting the tilt angle of the arc-shaped recovery trough 210 to 80°. Of course, in other embodiments of the present invention, a circular hole can also be provided in the arc-shaped recovery trough 210, and the arc-shaped recovery trough 210 can be fixed to the lifting frame 10 using screws and the circular hole.

[0033] In the embodiment shown in the attached drawings, the deceleration slide assembly further includes a flexible damping deceleration wheel 220, which is fixedly mounted on the arc-shaped recovery groove 210 via a deceleration wheel shaft 230. The deceleration wheel shaft 230 is made of 6061 aluminum alloy, passes through the center of the flexible damping deceleration wheel 220, and is fixed in the second slotted hole 412 of the arc-shaped recovery groove 210 by screws. The surface compressibility of the flexible damping deceleration wheel 220 is 10 mm, and the deceleration wheel shaft 230 can slide within the second slotted hole 412 to adjust the surface compressibility of the flexible damping deceleration wheel 220.

[0034] The photoelectric switch 330 is mounted on the hoisting frame 10 via a detection bracket 340. In the embodiment shown in the attached drawings, the hoisting frame 10 has U-shaped grooves 12 on both the left and right sides, and the detection bracket 340 has a third strip-shaped hole 341. The photoelectric switch 330 is fixedly mounted on the detection bracket 340, and the detection bracket 340 is fixedly mounted in the U-shaped groove 12 on the right side of the hoisting frame 10 via the third strip-shaped hole 341. The position of the detection bracket 340 can be adjusted through the third strip-shaped hole 341 and the U-shaped groove 12, thereby adjusting the installation position of the photoelectric switch 330. Of course, in other embodiments of the present invention, the photoelectric switch 330 can also be mounted on the left side of the hoisting frame 10 via a detection bracket; or round holes can be opened on both the detection bracket 340 and the hoisting frame 10 to achieve a screw connection between them.

[0035] In the embodiment shown in the accompanying drawings, the cylinder rejection assembly 400 further includes a sheet metal pad 441, and the rejection block 440 is fixed on the sheet metal pad 441. The sheet metal pad 441 is fixedly connected to the rotating shaft 470. Of course, in other embodiments of the present invention, the cylinder rejection assembly 400 may not include the sheet metal pad 441, and the rejection block 440 may be directly fixedly connected to the rotating shaft 470.

[0036] In the embodiment shown in the accompanying drawings, the rejection block 440 is made of urethane adhesive. The rejection block 440 has a strip-shaped connecting hole 442, through which it is screwed to the sheet metal backing plate 441. Two springs 480 are symmetrically mounted on the rejection base, with the ends of the two springs 480 correspondingly connected to both ends of the sheet metal backing plate 441. Of course, in other embodiments of the invention, the rejection block 440 can also be made of other materials such as aluminum alloy; the rejection block 440 can also be screwed to the sheet metal backing plate 441 through a circular connecting hole.

[0037] In the embodiment shown in the accompanying drawings, two bearings 471 are mounted on the rotating shaft 470. The two bearings 471 are located on both sides of the sheet metal pad 441. The rotating shaft 470 is connected to the rejection seat 430 through the bearings 471. The outer side of the rejection seat 430 is provided with a bearing cover plate 472 for fixing the bearings 471. Of course, in other embodiments of the present invention, the rotating shaft 470 can also be directly connected to the round holes on both sides of the rejection seat 430, thereby realizing the rotatable connection between the rotating shaft 470 and the rejection seat 430.

[0038] In the embodiment shown in the accompanying drawings, the rejection seat 430 of the cylinder rejection assembly 400 and the guide rod of the guide rod cylinder 420 are threadedly connected and move synchronously. The guide rod cylinder 420 is equipped with a magnetic switch 421, which is communicatively connected to the electrical control box 310.

[0039] The floating connecting plate 490 includes a first connecting plate 491, a second connecting plate 492 perpendicularly connected to the first connecting plate 491, and a third connecting plate 493 perpendicularly connected to the second connecting plate 492. The guide rod of the single-acting pressing cylinder 460 has external threads and is threadedly connected to the first connecting plate 491. The swing block 450 has a swing connecting hole 451, and the third connecting plate 493 is inserted into the swing connecting hole 451. The swing block 450 is threadedly connected to the single-acting pressing cylinder 460 via the floating connecting plate 490. Rotating the floating connecting plate 490 adjusts the relative distance between the swing block 450 and the single-acting pressing cylinder 460, allowing for different swing angle adjustments to the sheet metal pad 441. The swing angle of the rejecting block 440 is adjusted accordingly, thereby adjusting the clamping depth on both sides of the cigarette pack 100 and preventing compression deformation of the cigarette pack 100.

[0040] The automatic rejection device of the cigarette pack elevator of the present invention operates as follows: The cigarette pack 100 is vertically placed on the horizontal stop 21 of the elevator chain 20 and moves upward under the drive of the elevator chain 20; when the cigarette pack 100 passes the ion detector 320, the ion detector 320 can identify whether the cigarette pack 100 has a missing pack and outputs a signal to the electrical control box 310. The electrical control box 310, through a programmed procedure, enables the cigarette pack 100 with a missing pack to continue moving upward to the detection position of the photoelectric switch 330; the photoelectric switch... Switch 330 shines a 90° angle perpendicularly to the side of the cigarette pack 100. When a pack of cigarettes 100 with a missing package is detected, a signal is sent to the control box 310. The control box 310 controls the guide rod cylinder 420 to move the rejection seat 430 and the rejection block 440 forward simultaneously. At the same time, the ends of the rejection blocks 440 of the two cylinder rejection assemblies 400 on both sides of the lifting frame 10 retract inward under the tension of the spring 480, clamping the pack of cigarettes 100 with a missing package. Block 440, holding the cigarette pack 100, continues to move forward until it reaches the predetermined position (above the rejection channel 30). The control box 310 controls the single-acting pressing cylinder 460 to actuate, causing the rejection block 440 to open outwards and release the cigarette pack 100, thus automatically rejecting the missing pack of cigarettes 100. Simultaneously, the cylinder rejection assembly 400 resets. At this point, the rejection block 440 is held in place by the rounded corner 412 of the cylinder seat side plate 411 at the front end of the cylinder seat 410, maintaining an outward opening state to ensure it does not affect the elevator chain. The cigarette pack 100 is lifted; the cigarette pack 100 released by the rejection block 440 falls freely through the rejection channel 30, and passes between the flexible damping deceleration wheel 220 and the arc-shaped recovery groove 210. The flexible damping deceleration wheel 220 rotates under the action of rolling friction, and the cigarette pack 100 decelerates under the action of rolling friction. After passing the flexible damping deceleration wheel 220, the cigarette pack 100 continues to decelerate and slide in the arc-shaped recovery groove 210, and finally stops at the tail of the arc-shaped recovery groove 210.

[0041] The automatic rejection device for the cigarette bar lifting machine of the present invention can achieve the following beneficial effects:

[0042] (1) When the ion detector detects that the cigarette pack is missing and the photoelectric switch detects that the missing cigarette pack has reached the rejection station, the control box controls the guide rod cylinder to move forward simultaneously, and the rejection seat and rejection block move forward simultaneously. The ends of the rejection blocks of the two cylinder rejection components retract inward under the action of spring tension to hold the missing cigarette pack. The rejection block continues to move forward with the cigarette pack in its grip until it reaches the predetermined position. The control box controls the single-acting pressing cylinder to open the rejection block outward to release the cigarette pack, thus realizing the automatic detection and automatic rejection function of the missing cigarette pack.

[0043] (2) After the rejected cigarette pack 100 falls freely through the rejection channel 30, it passes between the flexible damping deceleration wheel 220 and the arc-shaped recovery groove 210. The flexible damping deceleration wheel 220 rotates under the action of rolling friction, and the cigarette pack 100 decelerates under the action of rolling friction. After passing the flexible damping deceleration wheel 220, the cigarette pack 100 continues to decelerate and slide in the arc-shaped recovery groove 210, and finally stops at the tail of the arc-shaped recovery groove 210, realizing the automatic buffering and sliding function of the missing cigarette pack.

[0044] (3) The swing block 450 is threadedly connected to the single-acting pressing cylinder 460 through the floating connecting plate 490. Rotating the floating connecting plate 490 can adjust the relative distance between the swing block 450 and the single-acting pressing cylinder 460, thereby adjusting the swing angle of the sheet metal pad 441. The swing angle of the removal block 440 is adjusted accordingly, thereby adjusting the clamping depth on both sides of the cigarette pack 100 and avoiding the compression deformation of the cigarette pack 100.

[0045] In summary, the automatic rejection device of the cigarette lifting machine of the present invention can realize the automatic detection, automatic rejection, and automatic buffering and sliding functions of missing cigarette packs. It eliminates the safety hazard of falling from heights by eliminating the need for manual climbing to retrieve missing cigarette packs. At the same time, it does not require machine downtime and improves the production efficiency of the product.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention in any way. Those skilled in the art can make various equivalent changes and improvements based on the above embodiments, and all equivalent variations or modifications made within the scope of the claims should fall within the protection scope of the present invention.

Claims

1. An automatic rejection device for a cigarette bar lifting machine, characterized in that, Including: A cigarette pack lifting assembly includes a lifting frame, a lifting chain for conveying cigarette packs on the lifting frame, and a rejection channel on the front side of the lifting chain; A deceleration slide assembly includes an arc-shaped recovery groove disposed below the rejection channel; The electronic control assembly includes an ion detector, a photoelectric switch, and an electronic control box; the ion detector is mounted on the lifting frame and is used to detect whether there are missing packs in the cigarette packs; the photoelectric switch is mounted on the lifting frame and located above the ion detector, and is used to detect whether the missing packs of cigarette packs are conveyed to the rejection station; Two cylinder rejection assemblies are symmetrically installed on both sides of the lifting frame. Each cylinder rejection assembly includes a cylinder seat, a guide rod cylinder, a rejection seat, a rejection block, a swing block, and a single-acting pressing cylinder. The guide rod cylinder is fixedly installed on the lifting frame via the cylinder seat. The guide rod of the guide rod cylinder is fixedly connected to the rejection seat. The rejection seat is rotatably connected to the rejection block via a rotating shaft. A spring is connected between the end of the rejection block and the rejection seat. The swing block is fixedly connected to the shaft head of the rotating shaft. The single-acting pressing cylinder is fixedly installed on the rejection seat. The guide rod of the single-acting pressing cylinder is connected to the swing block via a floating connecting plate. The electrical control box is connected to the ion detector and the photoelectric switch. When the ion detector detects a missing pack of cigarettes and the photoelectric switch detects that the missing pack of cigarettes is being transported to the rejection station, the electrical control box controls the guide rod cylinder to move the rejection seat and rejection block forward simultaneously. Under the action of spring tension, the ends of the rejection blocks of the two cylinder rejection components retract inward simultaneously to clamp the missing pack of cigarettes. The rejection block clamps the cigarettes and continues to move forward until it reaches the predetermined position. The electrical control box controls the single-acting pressing cylinder to move the rejection block outward to release the cigarettes.

2. The automatic rejection device for the cigarette bar elevator as described in claim 1, characterized in that, The elevator chain is provided with horizontal stops at intervals, and the distance between two adjacent horizontal stops is greater than the length of the cigarette pack; guide blocks are provided on both sides of the elevator chain, and the guide blocks are embedded in the guide grooves of the elevator frame.

3. The automatic rejection device for the cigarette bar elevator as described in claim 1, characterized in that, The lifting frame has an upper cover and a lower cover arranged side by side on its front side. The front side panel of the upper cover forms a 60° angle with the horizontal plane, and the front side panel of the lower cover is parallel to the lifting frame. A detection hole is provided above the upper cover, through which the photoelectric switch detects whether a pack of cigarettes with missing packages has been delivered to the rejection station. The lower cover has symmetrical openings on the left and right sides for installing the cylinder rejection assembly. A partition is provided inside the lower cover, which divides the internal space of the lower cover into two parts. The rejection channel is formed between the partition and the front side panel of the lower cover.

4. The automatic rejection device for the cigarette bar elevator as described in claim 3, characterized in that, The upper end of the partition is connected to a guide plate, and a check baffle is provided above the guide plate. The two ends of the check baffle are rotatably connected to the left and right sides of the lower cover. A limiting plate is provided on the inner side of the partition, and the limiting plate is located below the check baffle.

5. The automatic rejection device for the cigarette bar elevator as described in claim 1, characterized in that, The deceleration slide assembly also includes a flexible damping deceleration wheel, which is fixedly installed at the inlet of the arc-shaped recycling trough via a deceleration wheel shaft.

6. The automatic rejection device for the cigarette bar elevator as described in claim 5, characterized in that, The arc-shaped recovery trough is provided with a first strip hole and a second strip hole. The arc-shaped recovery trough is fixedly connected to the lifting frame through the first strip hole, and the reduction wheel shaft is fixed in the second strip hole on the arc-shaped recovery trough by screws.

7. The automatic rejection device for the cigarette bar elevator as described in claim 1, characterized in that, The photoelectric switch is mounted on the hoisting frame via a detection bracket. The hoisting frame has U-shaped grooves on both the left and right sides. The detection bracket has a third strip hole. The photoelectric switch is fixedly mounted on the detection bracket. The detection bracket is fixedly mounted in the U-shaped groove on the left or right side of the hoisting frame via the third strip hole.

8. The automatic rejection device for the cigarette bar elevator as described in claim 1, characterized in that, The cylinder rejection assembly also includes a sheet metal pad, the rejection block is fixed on the sheet metal pad, the sheet metal pad is fixedly connected to the rotating shaft, and two bearings are installed on the rotating shaft. The two bearings are located on opposite sides of the sheet metal pad, and the rotating shaft is connected to the rejection seat through the bearings.

9. The automatic rejection device for the cigarette bar elevator as described in claim 8, characterized in that, The rejection block is made of urethane adhesive and has a strip-shaped connecting hole. The rejection block is connected to the sheet metal backing plate screw through the strip-shaped connecting hole.

10. The automatic rejection device for the cigarette bar elevator as described in claim 1, characterized in that, The floating connecting plate includes a first connecting plate, a second connecting plate perpendicularly connected to the first connecting plate, and a third connecting plate perpendicularly connected to the second connecting plate. The guide rod of the single-acting pressing cylinder is provided with an external thread, and the guide rod of the single-acting pressing cylinder is threadedly connected to the first connecting plate. The swing block is provided with a swing connecting hole, and the third connecting plate is placed into the swing connecting hole.

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