Temporary storage device for can lids and packaging equipment with the same

Abstract

A temporary storage device for can lids and packaging equipment with the temporary storage device. The temporary storage device for can lids comprises a frame (1) on which two groups of transmission belts or chain mechanisms (2) are arranged; one group of transmission belts or chain mechanisms (2) is arranged in a vertical plane on the front side of the frame, and the other group of transmission belts or chain mechanisms (2) is arranged in a vertical plane on the rear side of the frame; the guide bars (3) on the front transmission belt or chain mechanism (2) and the guide bars (3) on the rear transmission belt or chain mechanism (2) correspond to each other one-to-one, and the distance between each corresponding guide bar (3) is less than the diameter of the lid (001), so that each corresponding two guide bars (3) form a track for placing the lid; and a plurality of tracks for placing the lid that can move back and forth up and down are formed between the first vertical surface and the second vertical surface.

Description

Technical Field

[0001] The invention belongs to the field of packaging equipment, and in particular relates to a temporary storage device for can lids and packaging equipment with the temporary storage device. Background Art

[0002] When producing the can lid, the metal material is first punched into a basic lid by a basic lid punch, then curled by a crimping machine, glued by a glue injection machine, and dried in a dryer. After that, these lids are further formed on a combination punch and the pull ring is riveted to the lid.

[0003] For convenient storage and transportation, can lids are often packed for storage or transportation, requiring a packaging device to place the can lids into a packaging bag. Packaging bags are typically made of paper and are long, cylindrical in shape with one end open. Therefore, packaging involves placing the can lids into the bag through the opening at one end and then gluing the open end closed.

[0004] There have been reports of some can lid packaging equipment abroad, but most of them only achieve automation of a certain section of the packaging process, and the entire machine is also complex; moreover, the packaging speed of the packaging equipment and the lid supply speed of the lid production line are difficult to match, so the current packaging equipment and lid production line cannot be connected. Summary of the Invention

[0005] The present invention provides a temporary storage device for can lids and packaging equipment with the temporary storage device, the purpose of which is to enable the temporary storage function of lids to be provided, so that the packaging equipment can be connected with a lid production line.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the temporary storage device for can lids adopted by the present invention is:

[0007] A temporary storage device for can lids includes a frame, two sets of transmission belts or chain mechanisms are provided on the frame, each set of transmission belts or chain mechanisms includes at least one transmission belt or chain mechanism, and each transmission belt or chain mechanism includes an upper transmission wheel, a lower transmission wheel, and a transmission belt or chain wound around the upper transmission wheel and the lower transmission wheel;

[0008] Of the two sets of transmission belts or chain mechanisms, one set is arranged in a vertical plane on the front side of the frame, while the other set is arranged in a vertical plane on the rear side of the frame, and the upper transmission wheels of each set of transmission belts or chain mechanisms are coaxially arranged, and the lower transmission wheels are also coaxially arranged, and the vertical plane on the front side of the frame is parallel to the vertical plane on the rear side;

[0009] A plurality of guide bars are connected between the drive belts or chains of the front set of drive belts or chain mechanisms, and a plurality of guide bars are also connected between the drive belts or chains of the rear set of drive belts or chain mechanisms; and in the space between the first vertical surface and the second vertical surface of the frame, the guide bars on the front drive belts or chain mechanisms and the guide bars on the rear drive belts or chain mechanisms correspond one to one in front and back, and the distance between each corresponding guide bar is less than the diameter of the cover body, so that each corresponding two guide bars form a track for placing the cover body;

[0010] In addition, the front group of transmission belts or chain mechanisms are driven by the driving component to move synchronously, while the rear group of transmission belts or chain mechanisms are also driven by the driving component to move synchronously. The linear speed of the transmission belts or chains is the same as that of the front group of transmission belts or chain mechanisms, but the direction of movement is opposite, thereby forming a plurality of tracks for placing the cover body that can move back and forth up and down between the first vertical surface and the second vertical surface.

[0011] In the above scheme, the "first vertical surface" and "second vertical surface" refer to virtual planes erected on the frame, which include but are not limited to vertical planes perpendicular to the horizontal plane. They can be surfaces that form an acute angle with the vertical plane. In other words, the "first vertical surface" and "second vertical surface" are generally vertically arranged surfaces, but they are not necessarily arranged completely along the vertical direction and can be slightly tilted.

[0012] In the above solution, the contact portion of the guide bar with the cover body is an inclined plane or an arc-shaped placement surface.

[0013] Furthermore, the guide bar is provided with an elastic rib; when the corresponding two guide bars form a track for placing the cover body, the elastic ribs on the two guide bars are in an upwardly inclined extension state, and the bottom surface of the upwardly inclined extension serves as a pressure surface acting on the cover body; and when the elastic rib is in a free state, the line connecting its pressure surface to the center of the cover body placed on the track is smaller than the diameter of the cover body, so that the pressure surface of the elastic rib presses against the edge of the cover body to play a supporting role.

[0014] Furthermore, a pressure block is provided at each end of the guide bar, and the pressure block is hinged relative to the guide bar along a vertical pivot; when the corresponding two guide bars form a track for placing the cover body, the pressure blocks thereon also form an anti-reverse transition structure in a one-to-one correspondence; in the anti-reverse transition structure, the opposite surfaces of the corresponding two pressure blocks are guide slopes, and their ends facing the middle of the guide bar serve as anti-reverse blocking parts; an elastic element acts on the pressure block, and the elastic force of the elastic element makes the corresponding two pressure blocks have a closed natural state. In this closed natural state, the distance between the anti-reverse blocking parts of the two pressure blocks is smaller than the diameter of the cover body, and the two guide slopes approach each other and gradually shrink in the cover body conveying direction along the track formed by the guide bar.

[0015] The technical solution of the can lid packaging equipment of the can lid temporary storage device adopted by the present invention is as follows: the can lid packaging equipment comprises a frame and a cover track provided on the frame for conveying stacked covers, the cover track is serially connected to the can lid temporary storage device, the can lid temporary storage device comprises a frame, the frame is defined with a first vertical surface on the front side and a second vertical surface on the rear side, the first vertical surface and the second vertical surface are parallel;

[0016] The frame is provided with four transmission belt or chain mechanisms; each transmission belt or chain mechanism includes an upper transmission wheel, a lower transmission wheel, and a transmission belt or chain wound around the upper and lower transmission wheels; two of the four transmission belt or chain mechanisms are arranged in a first vertical plane on the front side of the frame, with the upper transmission wheels of the two mechanisms being coaxially arranged and the lower transmission wheels being also coaxially arranged; the other two are arranged in a second vertical plane on the rear side of the frame, with the upper transmission wheels of the two mechanisms being coaxially arranged and the lower transmission wheels being also coaxially arranged;

[0017] A plurality of guide bars are connected between the drive belts or chains of the two front drive belts or chain mechanisms, and a plurality of guide bars are also connected between the drive belts or chains of the two rear drive belts or chain mechanisms; and in the space between the first vertical surface and the second vertical surface of the frame, the guide bars on the front drive belts or chain mechanisms and the guide bars on the rear drive belts or chain mechanisms correspond one to one front to back, and the distance between each corresponding guide bar is less than the diameter of the cover body, so that each corresponding two guide bars form a track for placing the cover body;

[0018] Furthermore, the two transmission belts or chain mechanisms on the front side are driven by the driving component to move synchronously, while the two transmission belts or chain mechanisms on the rear side are also driven by the driving component to move synchronously. The linear speed of the transmission belts or chains is the same as that of the two transmission belts or chain mechanisms on the front side, but the movement directions are opposite, thereby forming a plurality of tracks for placing the cover bodies that can move back and forth up and down between the first vertical surface and the second vertical surface;

[0019] Specifically, a track for placing the can lids on the temporary storage device is connected in series with the lid track.

[0020] In the above solution, a section of the cover track located behind the temporary storage device for can covers in the conveying direction of the cover track serves as a cover pushing and bagging section, one end of which serves as a packaging bag supply position, and the other end as a cover bag entry position; a packaging bag positioning and opening component is provided at the packaging bag supply position, which can place the packaging bag on the packaging bag supply position and keep it in an open state; A bag grabbing assembly is slidably connected between the bag entry position of the cover body and the packaging bag supply position, and the bag grabbing assembly is driven by a bag grabbing translation driving mechanism to move between the bag entry position of the cover body and the packaging bag supply position; the bag grabbing assembly includes a first opening member and a bag pressing block, and the bag pressing block is arranged opposite to the first opening member, and the bag pressing block is driven by the bag pressing block driving mechanism to approach or move away from the first opening member, so that the bag pressing block and the first opening member cooperate to have a clamping effect; when the bag grabbing assembly is at the packaging bag supply position, the first opening member can extend into the opening of the packaging bag, and the bag pressing block and the first opening member can cooperate to clamp one side edge of the opening of the packaging bag; when the bag grabbing assembly is at the bag entry position of the cover body, the first opening member can open and maintain the bag opening of the packaging bag;

[0021] The can lid packaging device further comprises a lid pushing mechanism, which can push the lid through the space between the first opening support member and the second opening support member and enter the packaging bag at the lid pushing and bagging section.

[0022] In the above scheme, the bag pressing block driving mechanism includes a rocker arm, a touch matching block and a touch matching block driving device; the rocker arm is hinged relative to the first support member, one end of the rocker arm is positioned and connected to the bag pressing block, and the other end serves as the touch end; an elastic element acts on the rocker arm to keep the bag pressing block in a clamping state with the first support member; the touch matching block is arranged at the packaging bag supply position corresponding to the touch end of the rocker arm, and the touch matching block has two working positions under the drive of the touch matching block driving device. When the touch matching block is located at one working position, the touch end of the rocker arm contacts the touch matching block to release the bag pressing block, and when the touch matching block is located at the other working position, it is to move away from the touch end of the rocker arm, so that the bag pressing block returns to the clamping state.

[0023] In the above solution, the guide bar is provided with a resting surface along its length direction for contacting the cover body, and the resting surface is an inclined plane or an arc surface.

[0024] In the above scheme, the guide bar is provided with an elastic rib in the corresponding direction of the placement surface; when the corresponding two guide bars form a track for placing the cover body, the elastic ribs on the two guide bars are in an upward inclined extension state, and the bottom surface of the upward inclined extension serves as a pressure surface acting on the cover body; and when the elastic rib is in a free state, the line connecting its pressure surface to the center of the cover body placed on the track is smaller than the diameter of the cover body, so that the pressure surface of the elastic rib presses against the edge of the cover body to play a supporting role.

[0025] In the above scheme, a pressure block is provided at each end of the guide bar, and the pressure block is hinged relative to the guide bar along a vertical pivot; when the corresponding two guide bars form a track for placing the cover body, the pressure blocks thereon also form an anti-reverse transition structure in a one-to-one correspondence; in the anti-reverse transition structure, the opposite surfaces of the corresponding two pressure blocks are guide slopes, and their ends facing the middle of the guide bar serve as anti-reverse blocking parts; an elastic element acts on the pressure block, and the elastic force of the elastic element makes the corresponding two pressure blocks have a closed natural state. In this closed natural state, the distance between the anti-reverse blocking parts of the two pressure blocks is smaller than the diameter of the cover body, and the two guide slopes approach each other and gradually shrink along the cover body conveying direction of the track formed by the guide bar.

[0026] The present invention has the following effects:

[0027] The present invention cleverly designs a cover temporary storage device with a cover temporary storage function, so that the front cover production line and the back packing device can be directly connected in series using the cover temporary storage device, that is, the front cover delivery speed and the back cover packing speed can be adjusted to match.

[0028] On the other hand, when a fault occurs in the front or back track of the cover temporary storage device, if the front track fails, only the front track can be stopped for emergency repairs, and the cover temporary storage device can supply the stored covers to the back track, allowing the back track to continue working; and when the back track fails, only the back track needs to be stopped for emergency repairs, while the front track can still keep working, and the cover temporary storage device will store the covers sent by the front track. This design does not require stopping the entire line, greatly improving production efficiency.

[0029] Furthermore, the cover temporary storage device of the present invention has an ingenious design, a simple structure and a low production cost, and is highly competitive in the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 FIG1 is an overall perspective schematic diagram of the packaging device of the present invention, in which the guide rails of the cover-pushing and bagging section are omitted and not shown;

[0031] Figure 2 It is a schematic front view of the whole packaging equipment of the present invention;

[0032] Figure 3 It is a front view schematic diagram of the cover temporary storage device of the present invention;

[0033] Figure 4 It is a left side schematic diagram of the cover temporary storage device of the present invention;

[0034] Figure 5 It is a three-dimensional schematic diagram of the cover temporary storage device of the present invention;

[0035] Figure 6 for Figure 4A magnified schematic diagram of the middle A;

[0036] Figure 7 for Figure 5 A magnified schematic diagram of point B in the middle;

[0037] Figure 8 The action diagram of the bag grabbing assembly according to the embodiment of the present invention is shown in FIG. Figure 1 ;

[0038] Figure 9 The action diagram of the bag grabbing assembly according to the embodiment of the present invention is shown in FIG. Figure 2 ;

[0039] Figure 10 The action diagram of the bag grabbing assembly according to the embodiment of the present invention is shown in FIG. Figure 3 ;

[0040] Figure 11 The action diagram of the bag grabbing assembly according to the embodiment of the present invention is shown in FIG. Figure 4 .

[0041] In the above drawings: 1. Frame; 2. Transmission belt or chain mechanism; 21. Upper transmission wheel; 22. Lower transmission wheel; 23. Transmission belt or chain; 24. Transmission shaft; 25. Synchronous belt assembly; 26. Servo motor; 3. Guide bar; 31. Shelf surface; 32. Elastic rib; 321. Pressing surface; 33. Pressing block; 331. Pivot; 332. Guide slope; 333. Anti-fall blocking portion; 334. Elastic element; 4. Frame; 5. Cover track; 51. Cover-pushing and bagging section; 511. Bag supply position; 512. Cover-bag entry position; 6. Bag grabbing assembly; 61. First opening member; 62. Bag pressing block; 63. Bag pressing block driving mechanism; 631. Rocker; 6311. Touch end; 632. Touch matching block; 633. Touch matching block driving device; 634, elastic element; 64, bag grabbing translation drive mechanism; 71, second opening member; 711, blowing channel; 72, second opening member drive mechanism; 8, cover pushing mechanism; 9, packaging bag positioning and opening assembly; 91, upper adsorption assembly; 92, lower adsorption assembly; 00, packaging bag; 001, cover. DETAILED DESCRIPTION

[0042] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0043] Example 1: See Figure 3-7 As shown:

[0044] A temporary storage device for can lids, comprising a frame 1, which is a base structure, such as Figure 3-5As shown in the example, the frame 1 is composed of a front frame and a rear frame. The front frame and the rear frame have the same structure, both consisting of two columns and a transverse connecting rod connected between the two columns. In practice, the frame 1 can also have other structures. It is just a fixed installation body of the temporary storage device for can lids.

[0045] See also Figure 3-7 As shown, the frame 1 is defined with a first vertical surface on the front side and a second vertical surface on the rear side, and the first vertical surface and the second vertical surface are parallel to each other. For example, as shown in the figure, the first vertical surface and the second vertical surface are perpendicular to the horizontal plane.

[0046] See also Figure 3-7 As shown, two groups of transmission belts or chain mechanisms 2 are provided on the frame 1; each group of transmission belts or chain mechanisms 2 includes at least two transmission belts or chain mechanisms 2, and two are shown as an example in the figure.

[0047] Each transmission belt or chain mechanism 2 includes an upper transmission wheel 21 , a lower transmission wheel 22 , and a transmission belt or chain 23 wound around the upper transmission wheel 21 and the lower transmission wheel 22 .

[0048] Of the two sets of transmission belts or chain mechanisms 2, one set is arranged in the first vertical plane on the front side of the frame 1, and the upper transmission wheels 21 of the two are coaxially arranged, and the lower transmission wheels 22 are also coaxially arranged; the other set is arranged in the second vertical plane on the rear side of the frame 1, and the upper transmission wheels 21 of the two are coaxially arranged, and the lower transmission wheels 22 are also coaxially arranged.

[0049] See also Figure 3-7 As shown, a plurality of guide bars 3 are connected between the drive belts or chains 23 of the front set of drive belts or chain mechanisms 2, and a plurality of guide bars 3 are also connected between the drive belts or chains 23 of the rear set of drive belts or chain mechanisms 2. Furthermore, within the space between the first and second vertical surfaces of the frame, the guide bars 3 on the front drive belts or chain mechanisms 2 and the guide bars 3 on the rear drive belts or chain mechanisms 2 correspond one-to-one, and the distance between each corresponding guide bar 3 is less than the diameter of the cover 001, so that each corresponding pair of guide bars 3 forms a track for the cover to rest on.

[0050] Also, see Figure 3-7 As shown, the two transmission belts or chain mechanisms 2 on the front side are driven by the driving component to move synchronously, and the two transmission belts or chain mechanisms 2 on the rear side are also driven by the driving component to move synchronously. The linear speed of the transmission belts or chains is the same as that of the two transmission belts or chain mechanisms on the front side, but the movement direction is opposite, thereby forming a plurality of tracks for placing the cover body that can move back and forth up and down between the first vertical surface and the second vertical surface.

[0051] Specifically, such as Figure 3-7As shown, each transmission belt or chain mechanism 2 in the two sets of transmission belts or chain mechanisms 2 is exactly the same. The upper transmission wheel 21 of the front set of transmission belts or chain mechanisms 2 is fixed on the same transmission shaft 24, and the lower transmission wheel 22 of the front set of transmission belts or chain mechanisms 2 is also fixed on the same transmission shaft 24; the upper transmission wheel 21 of the rear set of transmission belts or chain mechanisms 2 is fixed on the same transmission shaft 24, and the lower transmission wheel 22 of the rear set of transmission belts or chain mechanisms 2 is also fixed on the same transmission shaft 24, and the upper transmission wheel 21 of each transmission belt or chain mechanism 2 is a driving wheel, and the ends of the driving wheels' transmission shafts 24 are connected by a synchronous belt set 25 at the same speed ratio (see for details). Figure 4 As shown), and are connected to the same driving component to achieve a synchronous driving effect. The driving component here is exemplified by a servo motor 26.

[0052] See also Figure 6 As shown, the contact portion of the guide bar 3 with the cover 001 is a support surface 31 in the form of an oblique plane or an arc-shaped surface, with the example shown being an oblique plane. The guide bar 3 is provided with an elastic rib 32. When two corresponding guide bars 3 form a track for the cover to rest on, the elastic ribs 32 on the two guide bars 3 extend upward at an angle, and the bottom surface of the upwardly extending portion serves as a pressure surface 321 acting on the cover. Furthermore, when the elastic rib 32 is in a free state, the line connecting its pressure surface 321 to the center of the cover 001 resting on the track is smaller than the diameter of the cover 001. This allows the pressure surface 321 of the elastic rib 32 to press against the edge of the cover 001, providing support and keeping the cover 001 upright on the track.

[0053] See also Figure 7As shown, each end of the guide bar 3 is provided with a pressing block 33, which is hinged relative to the guide bar 3 along a vertical pivot 331. When the two corresponding guide bars 3 form a track for placing the cover 001, the pressing blocks 33 thereon also form a one-to-one anti-fall transition structure. In this anti-fall transition structure, the opposing surfaces of the two corresponding pressing blocks 33 serve as guide slopes 332, and their ends facing the middle of the guide bar 3 serve as anti-fall blocking portions 333. The pressing blocks 33 are acted upon by elastic elements 334. The elastic force of the elastic elements 334 causes the two corresponding pressing blocks 33 to enter a closed natural state. In this closed natural state, the distance between the anti-fall blocking portions of the two pressing blocks 33 is less than the diameter of the cover 001, and the two guide slopes 332 thereof gradually converge toward each other in the cover conveying direction along the track formed by the guide bars 3. The function of the pressing blocks 33 is to block the cover 001 at both ends of the guide bars 3, ensuring that the cover 001 is stacked into a long strip and placed on the track. During use, when the cover 001 stacked into a long strip is pushed into the track formed by the two guide bars 3, the front end of the cover 001 stacked into a long strip first touches the guide slope 332, causing the two pressing blocks 33 to open against the elastic force of the elastic element, allowing the stacked long strip of cover 001 to smoothly enter the track formed by the two guide bars 3. When the rear end of the cover 001 stacked into a long strip passes through the two pressing blocks 33, the two pressing blocks 33 are reset due to the elastic force of the elastic element, and the anti-fall blocking portion 333 thereof blocks the rear end of the cover 001 stacked into a long strip.

[0054] Example 2: See Figure 1-11 As shown:

[0055] A can lid packaging device includes a frame 4 and a lid track 5 provided on the frame 4 for conveying stacked lids. The lid track 5 is connected in series with the can lid temporary storage device as described in Example 1, and specifically, the track for placing lids on the bottom layer of the can lid temporary storage device is connected in series with the lid track 5.

[0056] See also Figure 1 、 2 and Figure 8-11 As shown, a section of the cover track 5 located behind the can cover temporary storage device in the conveying direction of the cover track 5 serves as a cover pushing and bagging section 51, one end of the cover pushing and bagging section 51 serves as a packaging bag supply position 511, and the other end serves as a cover bag entry position 512.

[0057] A packaging bag positioning and opening component 9 is provided at the packaging bag supply position 511 , and the packaging bag positioning and opening component 9 can place the packaging bag 00 on the packaging bag supply position 511 and keep it in an open state.

[0058] A bag-grabbing assembly 6 is slidably connected between the cover body bag-entry position 512 and the packaging bag supply position 511. The bag-grabbing assembly 6 is driven by a bag-grabbing translation drive mechanism 64 to move between the cover body bag-entry position 511 and the packaging bag supply position 512. The bag-grabbing assembly 6 includes a first opening member 61 and a bag-pressing block 62. The bag-pressing block 62 and the first opening member 61 are arranged relative to each other vertically or horizontally. The bag-pressing block 62 is driven by a bag-pressing block drive mechanism 63 to move toward or away from the first opening member 61, so that the bag-pressing block 62 and the first opening member 61 cooperate to form a clamping effect. When the bag-grabbing assembly 6 is located at the packaging bag supply position 511, the first opening member 61 can extend into the opening of the packaging bag, and the bag-pressing block 62 and the first opening member 61 cooperate to clamp one side edge of the opening of the packaging bag 00.

[0059] A second opening member 71 and a second opening member driving mechanism 72 for driving the second opening member 71 are also provided at the cover body bag entry position 512. When the bag grabbing assembly 6 is at the cover body bag entry position 512, the second opening member 71 and the first opening member 61 can work together to open and maintain the bag opening of the packaging bag 00.

[0060] The can lid packaging device further includes a lid pushing mechanism 8 , which can push the lid 001 through the space between the first opening support member 61 and the second opening support member 71 into the packaging bag 00 at the lid pushing and bagging section 51 .

[0061] like Figure 8-11 In the actual example, the first opening support member 61 and the bag pressing block 62 are arranged up and down, and are clamped corresponding to the lower edge of the bag opening of the packaging bag 00. The second opening support member 71 is located above the first opening support member 61 and is used to support the upper edge of the bag opening of the packaging bag 00.

[0062] The bag pressing block driving mechanism 63 can also adopt various existing driving mechanisms, but preferably: Figure 8-11 As shown, the bag pressing block driving mechanism 63 includes a swing rod 631, a contact matching block 632 and a contact matching block driving device 633. The swing rod 631 is hinged relative to the first support member 61. Specifically, as shown in FIG. Figure 8-11As shown, the rocker arm 631 is a bent rod, the end of its transverse section being positioned and connected to the bag pressing block 62, and the end of its vertical section serving as the contact end 6311. An elastic element 634 acts on the rocker arm 631 to maintain the bag pressing block 62 in a clamped state with the first opening member 61. The contact block 632 is positioned at the packaging bag supply position 511, corresponding to the contact end 6311 of the rocker arm 631. Driven by a contact block drive device 633, the contact block 632 has two working positions. When the contact block 632 is in one working position, the contact end 6311 of the rocker arm 631 contacts the contact block 632, releasing the bag pressing block 62. When the contact block 632 is in the other working position, it clears the contact end 6311 of the rocker arm 631, returning the bag pressing block 62 to its clamped state.

[0063] Preferably, the first opening member 61 is an arc-shaped plate with the concave surface facing upward, and the second opening member 71 is an arc-shaped plate with the concave surface facing downward. The cross section of the first opening member 61 is close to a semicircle.

[0064] In addition, preferably, a blowing channel 711 is provided on the second opening member 71 toward the bag opening of the packaging bag 00 that is opened by it. The blowing channel 711 is connected to an air source to blow air into the packaging bag while the first opening member 61 and the second opening member 71 open the bag opening of the packaging bag 00, so that the bag opening of the packaging bag can open smoothly.

[0065] When working, Figure 1-2 As shown, in this embodiment, the cover track 5 is provided with stacked covers 001, and the packaging bag 00 with the bag opening opened is provided at the packaging bag supply position 511. The bag grabbing translation drive mechanism 54 is first started to drive the bag grabbing assembly 6 to move to the packaging bag supply position 511. At this time, the state is shown in FIG. Figure 8 When the bag-grabbing assembly 6 is about to reach the bag supply position 511, the contact end 6311 of the rocker 631 first contacts and is pressed by the contact matching block 63, causing the bag-pressing block 62 to descend, that is, it is separated from the first opening member 61. The bag-grabbing assembly 6 continues to move toward the bag supply position 511, so that the first opening member 61 is inserted into the open bag mouth of the bag 00. At this time, the state is shown. Figure 9 Then, the contact matching block driving device 633 is actuated to drive the contact matching block 63 to swing out of position, and the bag pressing block 62 is reset and lifted up under the action of the elastic element 634 to cooperate with the first opening support member 61 to clamp the lower edge of the bag opening of the packaging bag 00. At this time, the state is shown. Figure 10 Then, the grab bag translation drive mechanism 64 is started to drive the grab bag assembly 6 to move toward the cover into the bag position 512, and the grab bag assembly 6 successfully grabs a bag and drags it to the cover into the bag position 512. See this process. Figure 11When the bag-grabbing assembly 4 returns to the cover-entry position 512, the second opening member 71 is also inserted into the open mouth of the packaging bag 00. Then, driven by the second opening member driving mechanism 72, the second opening member 71 moves away from the first opening member 61, that is, the first opening member 61 and the second opening member 71 are relatively opened. At the same time, the air blowing channel 711 blows air into the packaging bag 00, so that the bag mouth of the packaging bag 00 can be smoothly inflated and opened, forming a passage for the cover 001 to enter the bag. At this time, the cover pushing mechanism 8 is activated, that is, the stack of long strips of cover 001 on the cover track 2 is pushed into the bag. The cover pushing mechanism 8 withdraws from the packaging bag 00, and the process of loading the cover 001 into the packaging bag 00 for packaging is completed.

[0066] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A temporary storage device for can lids, characterized in that: The invention comprises a frame (1), wherein two groups of transmission belts or chain mechanisms (2) are arranged on the frame (1), each group of transmission belts or chain mechanisms (2) comprises at least one transmission belt or chain mechanism (2), and each transmission belt or chain mechanism (2) comprises an upper transmission wheel (21), a lower transmission wheel (22), and a transmission belt or chain (23) wound around the upper transmission wheel (21) and the lower transmission wheel (22); Of the two groups of transmission belts or chain mechanisms (2), one group of transmission belts or chain mechanisms (2) is arranged in a vertical plane on the front side of the frame, and the other group of transmission belts or chain mechanisms (2) is arranged in a vertical plane on the rear side of the frame, and the upper transmission wheels (21) of each group of transmission belts or chain mechanisms (2) are coaxially arranged, and the lower transmission wheels (22) thereof are also coaxially arranged, and the vertical plane on the front side of the frame is parallel to the vertical plane on the rear side; A plurality of guide bars (3) are connected between the drive belts or chains (23) of a front group of drive belts or chain mechanisms (2), and a plurality of guide bars (3) are also connected between the drive belts or chains (23) of a rear group of drive belts or chain mechanisms (2); and, in the space between the first vertical surface and the second vertical surface of the frame, the guide bars (3) on the front drive belts or chain mechanisms (2) and the guide bars (3) on the rear drive belts or chain mechanisms (2) correspond one to one in front and back, and the distance between each corresponding guide bar (3) is less than the diameter of the cover body (001), so that each corresponding two guide bars (3) form a track for placing the cover body; Furthermore, the front group of transmission belts or chain mechanisms (2) are driven by the driving component to move synchronously, while the rear group of transmission belts or chain mechanisms (2) are also driven by the driving component to move synchronously, and the linear speed of the transmission belts or chains is the same as that of the front group of transmission belts or chain mechanisms, but the movement directions are opposite, thereby forming a plurality of tracks for placing the cover bodies that can move back and forth up and down between the first vertical surface and the second vertical surface; The contact portion of the guide bar (3) with the cover body (001) is a placing surface (31) in the form of an oblique plane or an arc surface; The guide bar (3) is provided with an elastic retaining edge (32). When the corresponding two guide bars (3) form a track for placing the cover body, the elastic retaining edges (32) on the two guide bars (3) are in an upwardly inclined extension state, and the bottom surface of the upwardly inclined extension serves as a pressing surface (321) acting on the cover body; and when the elastic retaining edge (32) is in a free state, the line connecting the pressing surface (321) and the center of the cover body (001) placed on the track is smaller than the diameter of the cover body (001), so that the pressing surface (321) of the elastic retaining edge (32) presses against the edge of the cover body (001) to play a supporting role. A pressing block (33) is provided at each end of the guide bar (3), and the pressing block (33) is hinged relative to the guide bar (3) along a vertical pivot (331); when the corresponding two guide bars (3) form a track for placing the cover body (001), the pressing blocks (33) thereon also form an anti-fall transition structure in a one-to-one correspondence; in the anti-fall transition structure, the opposite surfaces of the corresponding two pressing blocks (33) are guide inclined surfaces (332), and the ends thereof facing the middle of the guide bar (3) serve as guide surfaces. An anti-fall blocking portion (333); an elastic element (334) acts on the pressing block (33), and the elastic force of the elastic element (334) causes the corresponding two pressing blocks (33) to have a closed natural state. In the closed natural state, the distance between the anti-fall blocking portions of the two pressing blocks (33) is smaller than the diameter of the cover body (001), and the two guiding inclined surfaces (332) thereof approach each other and gradually shrink in the cover body conveying direction along the track formed by the guide bar (3).

2. A can lid packaging device, comprising a frame (4), and a lid track (5) provided on the frame (4) for conveying stacked lids, characterized in that: The cover track (5) is connected in series with the temporary storage device for can covers according to claim 1, specifically, a track for placing covers on the temporary storage device for can covers is connected in series with the cover track (5).

3. The can lid packaging equipment according to claim 2, characterized in that: A section of the cover track (5) located behind the can cover temporary storage device in the conveying direction of the cover track (5) serves as a cover pushing and bagging section (51), one end of the cover pushing and bagging section (51) serves as a packaging bag supply position (511), and the other end serves as a cover bag entry position (512); a packaging bag positioning and opening assembly (9) is provided at the packaging bag supply position (511), and the packaging bag positioning and opening assembly (9) can place the packaging bag (00) on the packaging bag supply position (511) and keep it in an open state; a bag grabbing assembly (6) is slidably connected between the cover bag entry position (512) and the packaging bag supply position (511), and the bag grabbing assembly (6) is driven by a bag grabbing translation driving mechanism (64) to move between the cover bag entry position (512) and the packaging bag supply position (511); the bag grabbing assembly (6) comprises a first opening member (61) and a bag pressing block (62), and the bag pressing block ( 62) is arranged opposite to the first opening member (61), and the bag pressing block (62) is driven by the bag pressing block driving mechanism (63) to approach or move away from the first opening member (61), so that the bag pressing block (62) and the first opening member (61) cooperate to have a clamping effect; when the bag grabbing assembly (6) is located at the packaging bag supply position (511), the first opening member (61) can extend into the opening of the packaging bag, and the bag pressing block (62) and the first opening member (61) cooperate to clamp the packaging bag ( 00) one side edge of the opening; when the bag grabbing assembly (6) is located at the cover bag entry position (512), the first opening support member (61) can open and maintain the bag opening of the packaging bag; the can cover packaging device also includes a cover pushing mechanism (8), which can push the cover (001) through the space between the first opening support member (61) and the second opening support member (71) and enter the packaging bag (00) at the cover pushing and bagging section (51).

4. The can lid packaging device according to claim 3, characterized in that: The bag pressing block driving mechanism (63) includes a rocker (631), a contact matching block (632) and a contact matching block driving device (633); the rocker (631) is hinged relative to the first opening member (61), one end of the rocker (631) is positioned and connected to the bag pressing block (62), and the other end serves as a contact end (6311); an elastic element (634) acts on the rocker (631) to keep the bag pressing block (62) in a clamping state matched with the first opening member (61); the contact matching block (632) corresponds to the rocker ( The touch end (6311) of the rocker arm (631) is arranged at the packaging bag supply position (511), and the touch matching block (632) has two working positions under the drive of the touch matching block driving device (633). When the touch matching block (632) is located at one working position, the touch end (6311) of the rocker arm (631) contacts the touch matching block (632) to release the bag pressing block (62), and when the touch matching block (632) is located at the other working position, the touch end (6311) of the rocker arm (631) is moved away, so that the bag pressing block (62) returns to the clamping state.

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