Curved channel type conveying device for zip-top can cover production process

Abstract

The invention relates to a curved channel type conveying device for a zip-top can cover production process, and belongs to the technical field of zip-top can conveying devices.The curved channel type conveying device is provided with a curved rail, so that the sliding conveying track of zip-top can covers is not limited by a horizontal straight line form any more, and the conveying efficiency is improved. Instead, a curved conveying track can be flexibly arranged according to the remaining space of an existing production workshop, the situation that the conveying track for conveying the ring-pull can covers interferes with existing goods or equipment in the production workshop can be avoided, it can be ensured that the ring-pull can covers can be stably conveyed to the designated position, and the production efficiency is improved. And meanwhile, the problem that installation of the curved track interferes with existing goods or equipment in a production workshop can be solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of beverage can conveying devices, and particularly relates to a curved-channel conveying device for the production process of beverage can lids. Background Art

[0002] Beverage cans are widely used in the canning of various beverages. The production process mainly includes four major processes: can making, printing, painting, and drying. Among them, the can-making process includes making the beverage can body and making the beverage can lid. After the beverage can lid is made, it needs to be conveyed to a detection device for detection.

[0003] For example, the utility model patent with the patent authorization announcement number: CN212475177U discloses a pushing mechanism for a beverage can lid, including a lid conveying track and a frame. The lid conveying track has a conveying space for the beverage can lid to slide along its length direction. The bottom of the conveying space is open. The pushing mechanism further includes a lifting mechanism, a guide rail, a push rod, and a linear driving mechanism. The lifting mechanism has a lifting end, and the lifting end is vertically arranged. The pushing mechanism can move up and down, and can be lowered and retracted when not in use to save occupied space.

[0004] Based on the retrieval of the patent authorization announcement number and combined with its deficiencies, it is found that: For the existing conveying space for the beverage can lid to slide, a horizontal linear conveying structure is adopted. However, such a structure requires ensuring that there are no other devices or sundries blocking the position where the conveying structure is placed in order to be successfully arranged in the production workshop. Especially for a production workshop with a long conveying distance, the length of the conveying structure to be set also needs to be increased. If a horizontal linear conveying structure is adopted, it is necessary to ensure that there are no other devices or sundries blocking the horizontal linear position of the production workshop in order to successfully install the conveying structure, which will greatly limit the installation environment of the conveying structure. Summary of the Invention

[0005] To solve the problem that for the existing conveying space for the beverage can lid to slide, a horizontal linear conveying structure is adopted. However, such a structure requires ensuring that there are no other devices or sundries blocking the position where the conveying structure is placed in order to be successfully arranged in the production workshop. Especially for a production workshop with a long conveying distance, the length of the conveying structure to be set also needs to be increased. If a horizontal linear conveying structure is adopted, it is necessary to ensure that there are no other devices or sundries blocking the horizontal linear position of the production workshop in order to successfully install the conveying structure, which will greatly limit the installation environment of the conveying structure, the present invention provides a curved-channel conveying device for the production process of beverage can lids.

[0006] The object of the present invention can be achieved by the following technical solutions: A curved-channel conveying device for the production process of beverage can lids, comprising a hollow curved track, a driving unit and a conveying unit. The curved track is arranged in a production workshop, and a number of beverage can lids are arranged in the curved track along the axial direction of the curved track. Looking at the cross-section perpendicular to the axis of the curved track, the cross-sectional shape of the curved track is equal to the cross-sectional shape of the beverage can lid. An input end and an output end are respectively arranged at both ends of the curved track. The driving unit is arranged at the input end of the curved track and is used to push the beverage can lid to slide to the output end of the curved track. The conveying unit is communicated with the output end of the curved track and is used to receive and transport the beverage can lid at the output end of the curved track to the next process; The curved track comprises four curved rail rods, and the four curved rail rods are evenly arranged at equal angles along the central axis of the curved track; Along the sliding direction of the beverage can lid, the curved track successively comprises a vertical end, a conveying end and a feeding end which are coaxially connected. The feeding end is inclined, and along the sliding direction of the beverage can lid, the height of the feeding end gradually decreases; The curved track further comprises a number of open rings. The open rings are successively arranged at equal intervals along the sliding direction of the beverage can lid on the feeding end. The open ring is a ring with an open top. The open ring is sleeved on the outer circle formed by the outer side walls of the four curved rail rods, and the position of the open top of the open ring is between the two curved rail rods far from the lowest point of the beverage can lid.

[0007] As a preferred technical solution of the present invention, the vertical end is vertically arranged, the top of the vertical end is communicated with the conveying unit, both ends of the conveying end are respectively connected with the bottom end of the vertical end and one end of the feeding end, the conveying end is inclined, and along the sliding direction of the beverage can lid, the height of the conveying end gradually increases.

[0008] As a preferred technical solution of the present invention, the curved track further comprises two rounded ends. One end of one rounded end is respectively smoothly coaxially connected with the vertical end and the conveying end, and one end of the other rounded end is respectively smoothly coaxially connected with the other end of the conveying end and the feeding end.

[0009] As a preferred technical solution of the present invention, the driving unit includes a driving machine frame, a driving motor, a driving disc, a driving roller and a flexible cylinder. The driving machine frame is arranged beside the curved track. The driving motor is arranged on the driving machine frame. The driving disc is coaxially connected with the driving motor. The driving roller is vertically arranged on the end face of the driving disc. The central axis of the driving disc is parallel to the central axis of the driving roller, but they do not coincide with each other. The flexible cylinder is coaxially sleeved on the driving roller. The flexible cylinder is located at the intersection of the rounded end where the conveying end and the feeding end are communicated, and the flexible cylinder is located between the two curved track rods at the top of the curved track.

[0010] As a preferred technical solution of the present invention, the driving unit further includes a pressing block. The pressing blocks are respectively arranged at one end of the flexible cylinder close to the conveying end. The pressing block is a flexible member. When the flexible cylinder is in contact with the aluminum can lid and deforms, the pressing block is inclined under the deformation of the flexible cylinder.

[0011] As a preferred technical solution of the present invention, the conveying unit includes a vacuum negative pressure device and an adsorption housing with a hollow interior. The adsorption housing is erected on the top of the vertical end. An adsorption groove strip is opened at the bottom of the adsorption housing. One end of the adsorption groove strip is located at the top of the vertical end. The adsorption groove strip is communicated with the interior of the adsorption housing. The vacuum negative pressure device is communicated with the interior of the adsorption housing. The vacuum negative pressure device is used to generate negative pressure in the interior of the adsorption housing.

[0012] As a preferred technical solution of the present invention, the conveying unit further includes a conveying motor, a conveying roller, a driven roller and a conveyor belt. The conveying motor is arranged on the side wall of the adsorption housing. The conveying roller and the driven roller are respectively arranged at both ends of the adsorption housing. The output end of the conveying motor is coaxially connected with the conveying roller. The conveying roller, the surface of the adsorption housing and the driven roller jointly form a conveying space. The conveyor belt is rotatably sleeved on the conveying space. A plurality of adsorption holes are opened in the conveyor belt. The plurality of adsorption holes are equidistantly and centrally arranged on the surface of the conveyor belt. The adsorption holes are communicated with the adsorption groove strip.

[0013] As a preferred technical solution of the present invention, the conveying unit further includes a conveying frame. The conveying frame is arranged at the bottom of one end of the adsorption housing. The minimum distance between the vertical end and the conveying frame is less than the length of the adsorption groove strip. The maximum distance between the vertical end and the conveying frame is greater than the length of the adsorption groove strip.

[0014] The beneficial effects of the present invention are as follows: By setting a curved track, the design of the curved track enables the trajectory for the sliding transportation of the beverage can lids to no longer be restricted to the form of a horizontal straight line. Instead, it can be flexibly set into a curved transportation trajectory according to the remaining space in the existing production workshop, which can avoid the interference between the transportation trajectory of the beverage can lids and the existing goods or equipment in the production workshop. This can not only ensure that the beverage can lids can be smoothly transported to the designated position, but also avoid the problem of interference between the installation of the curved track and the existing goods or equipment in the production workshop. It solves the problem that the existing transportation space for the sliding of beverage can lids all adopts a horizontal straight-line transportation structure. However, such a structure requires ensuring that there are no other equipment or sundries blocking the position where the transportation structure is placed in order to be successfully arranged in the production workshop. Especially for a production workshop with a long transportation distance, the length of the transportation structure that needs to be set also needs to be increased. If a horizontal straight-line transportation structure is adopted, it is necessary to ensure that there are no other equipment or sundries blocking the horizontal straight-line position of the production workshop in order to successfully install the transportation structure, which greatly limits the installation environment of the transportation structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] For the convenience of those skilled in the art to understand, the present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 It is the overall view of a curved-channel type conveying device for a beverage can lid production process according to the present invention; Figure 2 It is the front view of a curved-channel type conveying device for a beverage can lid production process according to the present invention; Figure 3 It is the overall view of the drive unit of a curved-channel type conveying device for a beverage can lid production process according to the present invention; Figure 4 It is the overall view of the conveying unit of a curved-channel type conveying device for a beverage can lid production process according to the present invention; Figure 5 It is the bottom view of the conveying unit of a curved-channel type conveying device for a beverage can lid production process according to the present invention; Figure 6 For the present invention Figure 2 The enlarged view of part A.

[0017] MAIN SYMBOL DESCRIPTION In the figure: 1. Curved track; 101. Curved rail rod; 102. Fixed ring; 103. Vertical end; 104. Conveying end; 105. Feeding end; 106. Rounded corner end; 107. Open ring; 2. Driving unit; 201. Driving machine frame; 202. Driving motor; 203. Driving roller; 204. Flexible cylinder; 205. Driving disc; 206. Pressing block; 3. Conveying unit; 301. Vacuum negative pressure device; 302. Adsorption housing; 3021. Adsorption groove strip; 303. Conveying motor; 304. Conveying roller; 305. Driven roller; 306. Conveyor belt; 3061. Adsorption hole; 307. Conveying frame; 4. Damping block. Detailed implementation manner

[0018] To further elaborate on the technical means and effects adopted by the present invention to achieve the intended invention purpose, the following, in combination with the accompanying drawings and preferred embodiments, details the specific implementation manner, structure, features and their effects of the present invention.

[0019] Please refer to Figures 1-6The present embodiment provides a curved channel type conveying device for a can cover production process, comprising a curved track 1 with a hollow interior, a driving unit 2 and a conveying unit 3. The curved track 1 is arranged in a production workshop, and a plurality of can covers are arranged in the curved track 1 along the axial direction of the curved track 1. When viewed along a cross section perpendicular to the axis of the curved track 1, the cross-sectional shape of the curved track 1 is equal to the cross-sectional shape of the can cover. An input end and an output end are respectively arranged at both ends of the curved track 1. The driving unit 2 is arranged at the input end of the curved track 1, and is used to push the can cover to slide to the output end of the curved track 1. The conveying unit 3 is connected to the output end of the curved track 1, and is used to receive and transport the can cover at the output end of the curved track 1 to the next process. By providing the curved track 1 and designing the curved track 1, the track for sliding and conveying the can cover is no longer restricted to a horizontal straight line, but can be flexibly arranged according to the existing The remaining space in the production workshop is set as a curved conveying track, which can avoid the transmission track for transporting can lids from interfering with existing goods or equipment in the production workshop. It can not only ensure that the can lids can be smoothly transported to the designated location, but also avoid the problem of interference between the installation of the curved track 1 and existing goods or equipment in the production workshop, which solves the problem that the existing conveying space for the sliding of can lids adopts a horizontal and straight conveying structure; however, such a structure needs to ensure that the position where the conveying structure is placed is not blocked by other equipment or debris before it can be smoothly arranged in the production workshop, especially for production workshops with long conveying distances, the length of the conveying structure that needs to be set up also needs to be increased. If a horizontal and straight conveying structure is adopted, it is necessary to ensure that the horizontal and straight positions of the production workshop are not blocked by other equipment or debris before the conveying structure can be successfully installed, which will greatly limit the problem of the installation environment of the conveying structure.

[0020] In addition, it should be noted that this solution can adapt to the production layout and space utilization by setting a curved track 1 instead of a horizontal straight conveying structure. In the production workshop of the factory, the space is often limited and the layout is relatively complex. Designing the conveyor line to be curved can better fit the corners and irregularly shaped areas of the workshop. For example, in the production line layout of some old factory buildings, the curved conveyor line can bypass the original obstacles such as columns and equipment foundations, make full use of every inch of space, and avoid the interruption of the production process due to space limitations or the need to expand the factory area.

[0021] At the same time, the curved track 1 can also meet the process requirements, buffer and adjust the flow of the open lid during the production process. The curved part of the curved track 1 can have a certain buffering effect on the movement of the open lid. When the output of the upstream process suddenly increases, the space at the curve of the curved track 1 can temporarily accommodate the excess open lids to prevent them from accumulating and clogging in the curved track 1; conversely, when the output decreases, the curve of the curved track 1 can also play a role in regulating the flow, so that the open lid can enter the downstream process at a relatively stable speed.

[0022] It is worth noting that the setting of the curved track 1 in this solution can also improve production efficiency and quality. Compared with the straight conveyor line, the curved design of the curved track 1 can reduce direct collisions between the pull-open lids. The pull-open lid is a metal product. During high-speed straight-line transportation, if a collision occurs, it is easy to produce scratches, deformation and other defects. The curved track 1 reduces the probability of collision between the pull-open lids by changing the direction of movement, thereby improving product quality.

[0023] Specifically, the curved track 1 of the present embodiment includes four curved track rod blocks, which are evenly arranged at equal angles along the central axis of the curved track 1. The inner diameter of the largest inner circle formed by the four curved track rod blocks is equal to the outer diameter of the can cover. Through such an arrangement, the can cover can be smoothly slid and transported along the central axis direction of the curved track 1.

[0024] It is further explained that, in this solution, along the sliding direction of the can cover, the curved track 1 includes a coaxially connected vertical end 103, a conveying end 104 and a feeding end 105 in sequence, the vertical end 103 is vertically arranged, the top of the vertical end 103 is interconnected with the conveying unit 3, the two ends of the conveying end 104 are respectively interconnected with the bottom end of the vertical end 103 and one end of the feeding end 105, the conveying end 104 is inclined, and along the sliding direction of the can cover, the height of the conveying end 104 gradually increases; through such an arrangement, in the actual process of conveying the can cover In the process, the staff places the produced can covers on the feeding end 105, and the can covers on the feeding end 105 will slide to the vertical end 103 through the conveying end 104, and finally the can covers will be moved to the position of the conveying unit 3 through the top of the vertical end 103; it is worth mentioning that since the vertical end 103 is vertically arranged, the can covers will slide along the setting direction of the vertical end 103 and slide to the top of the vertical end 103, and then the can covers will be presented at the top position of the vertical end 103 in a horizontal lying manner. In addition, it should be noted that in order to ensure that the can cover at the front end does not fall over when the can cover slides at the conveying end 104, the conveying end 104 of the present invention is arranged at an angle, and the height of the conveying end 104 gradually increases along the sliding direction of the can cover. Such an arrangement enables the center of gravity of the can cover at the front end to be close to the can cover at the rear end along the sliding direction of the can cover when the can cover slides at the conveying end 104, that is, the can cover at the front end will fit the can cover at the rear end, thereby ensuring that the can cover at the front end does not fall over.

[0025] Furthermore, in order to facilitate the smooth transportation of the can lids located at the feeding end 105 to the conveying end 104, the feeding end 105 of the present embodiment is arranged at an angle, and the height of the feeding end 105 gradually decreases along the sliding direction of the can lids. It should also be noted that a discharge trough is provided at the top of the feeding end 105 of the present embodiment, and a plurality of can lids are manually placed in the feeding end 105 through the discharge trough. The plurality of can lids located in the feeding end 105 will slide to the bottom of the feeding end 105 due to the action of gravity, and, due to inertia, the can lids that slide to the bottom of the feeding end 105 will continue to slide to the conveying end 104.

[0026] According to the above embodiments, along the sliding direction of the pop-top can lid, the inclination directions of the feeding end 105 and the conveying end 104 in this solution are different from each other. Therefore, if the pop-top can lid located in the feeding end 105 directly slides onto the conveying end 104, it may cause the pop-top can lid to get stuck at the intersection of the feeding end 105 and the conveying end 104. Based on this, the curved track 1 in this solution further includes a rounded corner end 106. The two ends of the rounded corner end 106 are respectively and smoothly coaxially connected to one end of the conveying end 104 and the bottom end of the feeding end 105. The structure of the rounded corner end 106 is the same as that of the feeding end 105, except that the bending angle and the length of the rounded corner end 106 are different. By providing the rounded corner end 106, the intersection between the feeding end 105 and the conveying end 104 is set to a structure with a rounded corner arc, so that the bottom end of the feeding end 105 can smoothly transition to the conveying end 104, ensuring that the pop-top can lid located in the feeding end 105 can smoothly slide onto the conveying end 104.

[0027] Similarly, along the sliding direction of the pop-top can lid, the setting direction of the vertical end 103 and the inclination direction of the conveying end 104 in this solution are different from each other. Therefore, if the pop-top can lid located in the conveying end 104 directly slides onto the vertical end 103, it may cause the pop-top can lid to get stuck at the intersection of the vertical end 103 and the conveying end 104. Based on this, two rounded corner ends 106 are provided in this solution. The two ends of the other rounded corner end 106 are respectively and smoothly coaxially connected to the other end of the conveying end 104 and the bottom end of the vertical end 103. The structure of the rounded corner end 106 is the same as that of the conveying end 104, except that the bending angle and the length of the rounded corner end 106 are different. By providing the rounded corner end 106, the intersection between the vertical end 103 and the conveying end 104 is set to a structure with a rounded corner arc, so that the bottom end of the vertical end 103 can smoothly transition to the conveying end 104, ensuring that the pop-top can lid located in the conveying end 104 can smoothly slide onto the vertical end 103.

[0028] It should be noted that the vertical end 103, the conveying end 104, the feeding end 105 and the rounded corner end 106 in this solution are all composed of four curved rail blocks. The curved rail blocks of the vertical end 103, the conveying end 104, the feeding end 105 and the rounded corner end 106 are coaxially connected to each other, forming four curved rail blocks. It is also worth noting that the four curved rail blocks in this solution are evenly arranged at equal angles along the central axis of the curved track 1, and the two curved rail blocks located at the bottom are respectively symmetrically located at both ends of the lowest point of the pop-top can lid.

[0029] Specifically, the driving unit 2 in this solution is arranged on one end of the conveying end 104 close to the feeding end 105, and is used to control the sliding of the pop-top can lid located on the conveying end 104.

[0030] In addition, it is also worth noting that the curved track 1 of this solution further includes a number of fixing rings 102. The number of fixing rings 102 are arranged at equal intervals in sequence along the sliding direction of the beverage can lid on the conveying end 104, the rounded corner end 106 connecting the conveying end 104 and the vertical end 103, and the vertical end 103. The fixing ring 102 is an annular ring, and the fixing ring 102 is sleeved on the outer circle formed by the outer side walls of the four curved rail rod blocks. The fixing ring 102 is respectively connected to the four curved rail rods 101. By providing the fixing ring 102, after the position of the fixing ring 102 is fixed, it can ensure that the positions of the four curved rail rods 101 sleeved by the fixing ring 102 will not deform, that is, the relative positions of the four curved rail rods 101 sleeved by the fixing ring 102 will not change, and the cross-sectional shape at this position is equal to the cross-sectional shape of the beverage can lid.

[0031] In addition, the curved track 1 of this solution further includes a number of open rings 107. The number of open rings 107 are arranged at equal intervals in sequence along the sliding direction of the beverage can lid on the rounded corner end 106 connecting the conveying end 104 and the feeding end 105 and the feeding end 105. The open ring 107 is a ring with an open top. The open ring 107 is sleeved on the outer circle formed by the outer side walls of the four curved rail rods 101. The open ring 107 is respectively connected to the four curved rail rods 101, and the position of the open top of the open ring 107 is between the curved rail rods 101 at both ends far from the lowest point of the beverage can lid. By providing the open ring 107, when the position of the open ring 107 is fixed and the fixed position of the open ring 107 is far from the opening position of the open ring 107, the curved rail rods 101 at both ends of the beverage can lid at the lowest point will no longer change their positions. However, due to the open structure of the open ring 107, the curved rail rods 101 at both ends far from the lowest point of the beverage can lid will move to a certain extent in a direction away from the central axis of the curved track 1 during use, thereby causing the opening spacing at the top of the open ring 107 to continuously increase to a certain extent, and further resulting in the diameter size of the largest inner circle formed by the four curved rail rod blocks at the rounded corner end 106 of the connecting conveying end 104 and the feeding end 105 and the feeding end 105 being larger than the diameter size of the beverage can lid; such a setting is because the driving unit 2 of this solution is arranged at the conveying end 104 to drive the sliding of the beverage can lid at the conveying end 104; while the beverage can lid on the feeding end 105 can only slide towards the position of the conveying end 104 by the action of gravity. Therefore, in order to ensure that the beverage can lid on the feeding end 105 can smoothly slide towards the position of the conveying end 104 by the action of gravity, it is necessary to ensure that the diameter size of the largest inner circle formed by the four curved rail rods 101 at the feeding end 105 and the rounded corner end 106 of the connecting conveying end 104 and the feeding end 105 is slightly larger than the diameter size of the beverage can lid to facilitate the sliding of the beverage can lid. It is also worth noting that the setting of the open ring 107 can not only ensure that the diameter size of the largest inner circle formed by the four curved rail rods 101 at the feeding end 105 and the rounded corner end 106 of the connecting conveying end 104 and the feeding end 105 is slightly larger than the diameter size of the beverage can lid. At the same time, the design of the open ring 107 can also ensure that the curved rail rods 101 at both ends of the feeding end 105 and the rounded corner end 106 of the connecting conveying end 104 and the feeding end 105 at the lowest point of the beverage can lid are coaxially connected to the curved rail rods 101 at both ends of the conveying end 104 at the lowest point of the beverage can lid, ensuring that the sliding direction of the beverage can lid will not deviate, and thus ensuring that the beverage can lid can smoothly slide from the feeding end 105 to the conveying end 104.

[0032] In addition, it is worth mentioning that, since the present solution is provided with an open ring 107, the diameter of the largest inner circle formed by the feeding end 105 and the four curved rails 101 at the rounded end 106 connecting the conveying end 104 and the feeding end 105 is slightly larger than the diameter of the can cover, which enables the can cover to slide smoothly from the feeding end 105 to the conveying end 104; however, since the mass of a single can cover in the present solution is relatively small and the vibration generated by the device during operation is relatively large, after the can cover is placed on the feeding end 105, some of the can covers will vibrate synchronously due to the vibration, making the height of some of the can covers higher than that of the remaining can covers, and the diameter of the largest inner circle formed by the four curved rails 101 at the rounded end 106 of the feeding end 105 is larger than the diameter of the largest inner circle formed by the four curved rails 101 at the conveying end 104, which causes the vibrating can cover to vibrate when passing through the feeding end 1 05 and the conveying end 104, the can cover will be deformed; based on this, the present invention is provided with a driving unit 2 to solve the above problem. Specifically, the driving unit 2 of the present invention includes a driving frame 201, a driving motor 202, a driving disk 205, a driving roller 203 and a flexible cylinder 204. The driving frame 201 is arranged beside the curved track 1, the driving motor 202 is arranged on the driving frame 201, and the driving disk 205 is connected to the driving frame 201. The driving motor 202 is coaxially connected, and the driving roller 203 is vertically arranged on the end face of the driving disk 205. The central axis of the driving disk 205 and the central axis of the driving roller 203 are parallel to each other, but do not overlap with each other; the flexible cylinder 204 is coaxially sleeved on the driving roller 203, and the flexible cylinder 204 is located at the intersection of the rounded end 106 connected to the conveying end 104 and the feeding end 105, and the flexible cylinder 204 is located between the two curved rail bars 101 at the top of the curved track 1.

[0033] By providing a driving unit 2, the driving motor 202 rotates to control the rotation of the driving roller 203 and the flexible cylinder 204 sleeved on the driving roller 203. Then, the flexible cylinder 204 drives the soda can lid in contact with it to move, thereby realizing the sliding of the soda can lid at one end of the conveying end 104 close to the feeding end 105 to push the soda can lid at the front end; in addition, it is worth noting that the output ends of the driving roller 203 and the driving motor 202 in this solution are eccentrically connected. For the convenience of description, it is first necessary to define a first space and a second space. The first space is the space at the intersection of the rounded end 106 of the feeding end 105 and the conveying end 104, and the second space refers to the space adjacent to the first space and located within the rounded end 106. It should be noted that during the rotation of the driving roller 203 from the second space to the first space, the distance between the driving roller 203 and the curved track 1 gradually decreases, and when the driving roller 203 rotates to directly above the intersection of the rounded end 106 of the feeding end 105 and the conveying end 104, the distance between the driving roller 203 and the curved track 1 reaches the shortest.

[0034] When the drive motor 202 starts to work, the drive motor 202 controls the drive roller 203 to rotate. First, the drive roller 203 controls the flexible cylinder 204 to press the beverage can lid located in the second space from top to bottom. The beverage can lid that has been lifted due to vibration in the second space will return to its original height due to the pressing of the flexible cylinder 204. Then, the drive motor 202 continues to control the drive roller 203 to rotate, so that the drive roller 203 controls the flexible cylinder 204 to rotate around the central axis of the drive disk 205. That is, during the period when the drive roller 203 controls the flexible cylinder 204 to rotate from the second space to the first space, the drive roller 203 also controls the flexible cylinder 204 to move in the direction close to the curved track 1, so that the reaction force between the flexible cylinder 204 and the beverage can lid increases. This reaction force is inclined towards the bottom along the moving direction of the beverage can lid. Therefore, this reaction force can be decomposed into a pressing force vertically downward and a pushing force along the sliding direction of the beverage can lid. This pushing force can push the beverage can lid to slide along the direction of the curved track 1, and the pressing force is to ensure that during the process of pushing the beverage can lid to slide, the beverage can lid in the first space will not change its height due to vibration, so as to realize that the beverage can lid in the first space can smoothly pass through the intersection between the rounded end 106 and the conveying end 104. Then, the beverage can lid in the second space will slide into the first space due to the inertial force. It should be noted that when the beverage can lid in the second space moves into the first space, due to the loss of the pressing effect of the flexible cylinder 204, the beverage can lid in the first space still has a situation where its height is lifted due to vibration. However, since the distance from the second space to the first space is short, the lifting height of the beverage can lid sliding into the first space will be controlled within a certain height. To solve this problem, this solution also includes a pressing block 206. The pressing block 206 is respectively arranged at one end of the flexible cylinder 204 close to the conveying end 104, and the set height of the pressing block 206 is separated from the lowest point of the flexible cylinder 204 by a certain distance. When the flexible cylinder 204 rotates into the first space, due to the vertically downward pressing force, the bottom of the flexible cylinder 204 deforms, so that the front end of the pressing block 206 at this time is inclined towards the bottom, realizing the pressing and resetting process of the pressing block 206 on the beverage can lid with a lifted height in the first space. It should be noted that the bottom of the pressing block 206 is inclined, and along the sliding direction of the beverage can lid, the vertical height of the pressing block 206 gradually increases. Through such a setting, the front end of the pressing block 206 can smoothly press and reset the beverage can lid with a lifted height in the first space.

[0035] Meanwhile, it should also be noted that the pressing block 206 presses and resets the lifted beverage can lid located in the first space through its front end. When the pressing block 206 first presses and resets the beverage can lid, there is a gap between the rear end of the pressing block 206 and the bottom of the flexible cylinder 204, which makes it impossible to press and reset the lifted beverage can lid within this gap. However, in actual situations, since the conveying end 104 of this solution is inclined, and the set height of the conveying end 104 increases gradually along the sliding direction of the beverage can lid, therefore, this makes the set height of the end of the rounded corner end 106 that is close to the conveying end 104 and communicates with the conveying end 104 and the feeding end 105 also increase gradually along the sliding direction of the beverage can lid. When the flexible cylinder 204 rotates, the contact point between the flexible cylinder 204 and the beverage can lid continuously approaches the rear end of the pressing block 206. Coupled with the continuous increase in the contact force between the flexible cylinder 204 itself and the beverage can lid, after the flexible cylinder 204 deforms itself, its deformed state can continuously fill the gap between the bottom of the flexible cylinder 204 and the rear end of the pressing block 206 until the gap is completely filled. Therefore, in this solution, the flexible cylinder 204 deforms itself and cooperates with the structure of the pressing block 206 to jointly press and reset the beverage can lid located in the first space. Meanwhile, it should also be noted that the pressing block 206 of this solution is also a flexible part. In addition, it is also worth noting that when one end of the flexible cylinder 204 is located at the intersection of the conveying end 104 and the rounded corner end 106, the pushing force of the flexible cylinder 204 on the beverage can lid can achieve the pushing effect on the beverage can lid.

[0036] In addition, this solution is also provided with a damping block 4. The damping block 4 is arranged at the intersection position of the conveying end 104 and the rounded corner end 106 located at the feeding end 105. The bottom of the damping block 4 is inclined, and along the sliding direction of the beverage can lid, the set height of the damping block 4 gradually increases. The front end of the damping block extends into the curved track 1, and the damping block 4 is also a deformable block. By providing the damping block 4, the front end of the damping block 4 abuts against the beverage can lid located at the conveying end 104, restricting the beverage can lid located at the conveying end 104 from flowing back into the rounded corner end 106 located at the feeding end 105. The beverage can lid located in the rounded corner end 106 of the feeding end 105 can, due to the action of the driving unit 2, smoothly move into the conveying end 104 by deforming the front end of the damping block 4.

[0037] Specifically, the conveying unit 3 of this solution includes a vacuum negative pressure device 301 and an adsorption housing 302 with a hollow interior. The adsorption housing 302 is mounted on the top of the vertical end 103. An adsorption groove strip 3021 is provided at the bottom of the adsorption housing 302. One end of the adsorption groove strip 3021 is located at the top of the vertical end 103. The adsorption groove strip 3021 communicates with the interior of the adsorption housing 302. The vacuum negative pressure device 301 communicates with the interior of the adsorption housing 302. The vacuum negative pressure device 301 is used to generate negative pressure inside the adsorption housing 302. By setting the vacuum negative pressure device 301, when the vacuum negative pressure device 301 starts to work, the air located inside the adsorption housing 302 will be discharged, causing a pressure difference between the air pressure inside the adsorption housing 302 and the air pressure of the external environment, thereby forming a suction force. Since the adsorption groove strip 3021 communicates with the interior of the adsorption housing 302, the adsorption groove strip 3021 will also generate a suction force, and the adsorption groove strip 3021 adsorbs the uppermost pull-tab of the can lid located at the top of the vertical end 103.

[0038] Furthermore, in order to transport the adsorbed pull-tab of the can lid, the conveying unit 3 of this solution further includes a conveying motor 303, a conveying roller 304, a driven roller 305, and a conveyor belt 306. The conveying motor 303 is arranged on the side wall of the adsorption housing 302. The conveying roller 304 and the driven roller 305 are respectively arranged at both ends of the adsorption housing 302. The output end of the conveying motor 303 is coaxially connected to the conveying roller 304. The conveying roller 304, the surface of the adsorption housing 302, and the driven roller 305 jointly form a conveying space. The conveyor belt 306 is rotatably sleeved on the conveying space. A number of adsorption holes 3061 are provided on the conveyor belt 306. The number of adsorption holes 3061 are evenly spaced and centered on the surface of the conveyor belt 306. The central axis direction of the adsorption groove strip 3021 and the central axis direction of the conveyor belt 306 are in the same vertical plane. The adsorption holes 3061 can lock or release their communication relationship with the adsorption groove strip 3021.

[0039] It should be noted that the width of the adsorption groove 3021 is greater than the diameter of a single adsorption hole 3061, and the width of the adsorption groove 3021 is smaller than the diameter of the can cover, and the diameter of the can cover is greater than the maximum spacing between two adjacent adsorption holes 3061. At the same time, the diameter direction of the can cover and the central axis of the adsorption groove 3021 are on the same vertical plane. Through such an arrangement, when the conveying motor 303 starts to work, it will drive the conveying roller 304 to rotate, thereby driving the conveying belt 306 to rotate, and the adsorption on the adsorption groove 3021 will be sucked. The can lid will fit on at least one adsorption hole 3061 on the conveyor belt 306, and the can lid that fits on the conveyor belt 306 will be moved due to the rotation of the conveyor belt 306, and a new can lid at the top of the vertical end 103 below the adsorption groove 3021 will be adsorbed on the adsorption groove 3021, and the new can lid that fits on the conveyor belt 306 will be moved due to the rotation of the conveyor belt 306, and so on, until all the can lids at the top of the vertical end 103 are transported by the conveying unit 3.

[0040] Furthermore, the conveying unit 3 of the present embodiment further comprises a conveying rack 307, which is arranged at the bottom of one end of the adsorption shell 302, and the minimum distance between the vertical end 103 and the conveying rack 307 is less than the length of the adsorption groove 3021, and the maximum distance between the vertical end 103 and the conveying rack 307 is greater than the length of the adsorption groove 3021. It should be noted that the distance between the vertical end 103 and the end of the conveying rack 307 close to the vertical end 103 is the minimum distance between the vertical end 103 and the conveying rack 307, and the distance between the vertical end 103 and the end of the conveying rack 307 away from the vertical end 103 is the distance between the vertical end 103 and the conveying rack 307. The maximum spacing, the length of the adsorption shell 302 is greater than the length of the adsorption groove 3021. Through such a setting, as the can cover follows the movement of the conveyor belt, the can cover will move towards the direction close to the conveyor rack 307 until the can cover is separated from the adsorption groove 3021. The can cover will fall onto the conveyor rack 307 due to the action of gravity. The conveyor rack 307 has a conveyor belt structure. The can cover on the conveyor rack 307 continues to move along the conveyor rack 307 due to the structural effect of the conveyor belt. It should be noted that a detection device is provided on the conveyor rack 307, which will detect and process the can cover passing through the detection device.

[0041] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the above-disclosed technical content without departing from the technical solution of the present invention. However, as long as it does not depart from the technical solution content of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A curved channel type conveying device for the production process of pop-top cans, characterized in that: The invention comprises a curved track with a hollow interior, a driving unit and a conveying unit, wherein the curved track is arranged in a production workshop, and a plurality of can covers are arranged in the curved track along the axis direction of the curved track, and the cross-sectional shape of the curved track is equal to the cross-sectional shape of the can covers when viewed along a cross section perpendicular to the axis of the curved track, and an input end and an output end are respectively arranged at two ends of the curved track, and the driving unit is arranged at the input end of the curved track, and is used to push the can covers to slide to the output end of the curved track, and the conveying unit is connected with the output end of the curved track, and is used to receive and transport the can covers located at the output end of the curved track to the next process; The curved track comprises four curved rail bars, which are evenly arranged at equal angles along the central axis of the curved track; Along the sliding direction of the can cover, the curved track includes a coaxially connected vertical end, a conveying end and a feeding end in sequence, the feeding end is inclined, and along the sliding direction of the can cover, the height of the feeding end decreases gradually; The curved track also includes a plurality of open rings, which are arranged on the feeding end in sequence and at equal intervals along the sliding direction of the can cover. The open ring is a circular ring with an open top, and the open ring is sleeved on the outer circle formed by the outer side walls of four curved track rods. The position of the top opening of the open ring is located between the curved track rods at both ends away from the lowest point of the can cover.

2. The curved-channel type conveying device for the production process of pop-top lids according to claim 1, wherein: The vertical end is vertically arranged, the top of the vertical end is interconnected with the conveying unit, the two ends of the conveying end are respectively interconnected with the bottom end of the vertical end and one end of the feeding end, the conveying end is inclined, and the height of the conveying end increases gradually along the sliding direction of the can cover.

3. The curved-channel type conveying device for the production process of pop-top lids according to claim 1, wherein: The curved track also includes two rounded ends, both ends of one rounded end are smoothly coaxially connected to the vertical end and the conveying end, and both ends of the other rounded end are smoothly coaxially connected to the other end of the conveying end and the feeding end.

4. A curved-channel type conveying device for a production process of pop-top lids according to claim 3, characterized in that: The driving unit includes a driving frame, a driving motor, a driving disk, a driving roller and a flexible cylinder. The driving frame is arranged beside the curved track, the driving motor is arranged on the driving frame, the driving disk is coaxially connected to the driving motor, and the driving roller is vertically arranged on the end face of the driving disk. The central axis of the driving disk and the central axis of the driving roller are parallel to each other, but do not overlap with each other; the flexible cylinder is coaxially sleeved on the driving roller, the flexible cylinder is located at the intersection of the rounded end connecting the conveying end and the feeding end, and the flexible cylinder is located between the two curved rail bars at the top of the curved track.

5. The curved-channel type conveying device for the production process of pop-top can lids according to claim 4, characterized in that: The driving unit also includes a pressing block, which is respectively arranged at one end of the flexible cylinder close to the conveying end. The pressing block is a flexible member. When the flexible cylinder contacts and contacts the can cover and deforms, the pressing block is tilted under the deformation of the flexible cylinder.

6. The curved-channel type conveying device for the production process of an aluminum can lid according to claim 3, wherein: The conveying unit includes a vacuum negative pressure device and an adsorption housing with a hollow interior. The adsorption housing is mounted on the top of the vertical end. An adsorption groove strip is formed at the bottom of the adsorption housing. One end of the adsorption groove strip is located at the top of the vertical end. The adsorption groove strip communicates with the interior of the adsorption housing. The vacuum negative pressure device communicates with the interior of the adsorption housing. The vacuum negative pressure device is used to generate negative pressure inside the adsorption housing.

7. The curved-channel type conveying device for the production process of pop-top can lids according to claim 6, wherein: The conveying unit further includes a conveying motor, a conveying roller, a driven roller and a conveyor belt. The conveying motor is arranged on the side wall of the adsorption housing. The conveying roller and the driven roller are respectively arranged at both ends of the adsorption housing. The output end of the conveying motor is coaxially connected to the conveying roller. The conveying roller, the surface of the adsorption housing and the driven roller jointly form a conveying space. The conveyor belt is rotatably sleeved on the conveying space. A plurality of adsorption holes are formed in the conveyor belt. The plurality of adsorption holes are evenly arranged at the center of the surface of the conveyor belt at equal intervals. The adsorption holes communicate with the adsorption groove strip.

8. The curved-channel type conveying device for the production process of pop-top cans according to claim 6, wherein: The conveying unit further includes a conveying frame. The conveying frame is arranged at the bottom of one end of the adsorption housing. The minimum distance between the vertical end and the conveying frame is less than the length of the adsorption groove strip. The maximum distance between the vertical end and the conveying frame is greater than the length of the adsorption groove strip.

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