Cap opening device

Abstract

The utility model discloses a kind of uncovering device, comprising: flip cover assembly, for opening upper cover;Pushing assembly, it is set in the opposite side of flip cover assembly, including first frame body and the abutting unit and push unit being set on first frame body, the abutting unit includes first cam mechanism and abutting block, the push unit includes second cam mechanism and baffle;First driving part, it is set on the first frame body, the first cam mechanism includes cam one, the second cam mechanism includes cam two, first driving part drives the synchronous rotation of cam one and cam two. The utility model, by adopting the structural form of cam mechanism, corresponding abutting block and baffle are driven to act, can adapt to the rhythm of high-speed production, and service life is long, reaction speed is fast, and by making first driving part synchronous drive two cam mechanisms, make the work between two cam mechanisms more smooth, rhythm precision is high, and will not be wrong.

Description

Technical Field

[0001] This utility model relates to the field of packaging box opening technology, and in particular to an opening device. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] Packaging boxes (such as cigarette packs) include a bottom cover and an upper cover that covers the bottom cover. During the production process, cigarette packs need to go through the following steps in sequence: opening the lid, opening the lid guide, taking out the inner mold inside the bottom cover, and closing the lid. First, open a small gap in the upper cover, then gradually open the lid through the opening guide, and finally take out the inner mold and close the lid.

[0004] In the prior art, such as the Chinese utility model patent with patent application number CN202020459872.5, an online flip-top device for high-quality paper boxes is disclosed, which discloses a pressing mechanism and an anti-rebound mechanism. The pressing mechanism and the anti-rebound mechanism are operated independently by setting a cylinder respectively. However, this cylinder-driven method is not suitable for the pace of high-speed production. The cylinder has a short life and an upper limit to the response speed, so there is room for improvement. Therefore, this application provides a lid-opening device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings by providing a lid-opening device.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A lid-opening device, comprising: A flip-top assembly is provided with a suction cup for adsorbing the upper cover. After the upper cover is adsorbed by the suction cup, the flip-top assembly is used to drive the suction cup to pivot the upper cover relative to the lower cover in a preset direction to open the upper cover. A pushing component, located on the opposite side of the flip-top assembly, includes a first frame, a contact unit mounted on the first frame, and a pushing unit. The contact unit includes a first cam mechanism and a contact block. The first cam mechanism drives the contact block to abut against the bottom of the lower cover during the flip-top assembly's opening of the upper cover, thus cooperating with the flip-top assembly to open the upper cover. The pushing unit includes a second cam mechanism and a baffle. When the second cam mechanism drives the baffle to open between the upper and lower covers to a predetermined angle, the baffle is inserted into the gap between the upper and lower covers. A first driving component is disposed on the first frame. The first cam mechanism includes a first cam and the second cam mechanism includes a second cam. The first driving component drives the first cam and the second cam to rotate synchronously.

[0007] Furthermore, the first cam and the second cam are coaxially arranged and the cam tips face different directions. The first driving component drives the first cam and the second cam to rotate synchronously, thereby driving the corresponding abutment blocks and baffles to move in sequence.

[0008] Furthermore, the first cam mechanism includes: The first sliding block is laterally slidably disposed on the first frame and can move toward and away from the lower cover, and the abutment block is disposed at one end of the first sliding block; A first moving rod, one end of which is connected to a first sliding block, and the other end extends to a location of the cam and has a first follower that contacts the cam. The first elastic reset component has one end fixed and the other end connected to the first moving rod, which is used to drive the first moving rod to reset.

[0009] Furthermore, the second cam mechanism includes: The second sliding block is laterally slidably disposed on the first frame and can move toward and away from the lower cover. The baffle is disposed at one end of the second sliding block. The second moving rod has one end connected to the second sliding block and the other end extending to the second cam and having a second follower that contacts the second cam. The second elastic reset component has one end fixed and the other end connected to the second moving rod, which is used to drive the second moving rod to reset.

[0010] Furthermore, the flip-top assembly includes a crank unit and a slider unit, which together form a crank-slider mechanism. The slider unit has an arc-shaped movement trajectory and is positioned above the packaging box to be opened. The slider unit is equipped with a suction cup for adsorbing the top cover. The suction cup moves together with the slider unit, adsorbing the top cover and causing it to open to one side.

[0011] Furthermore, it also includes: The second frame, on which the crank unit and the slider unit are mounted, and on which an arc-shaped track is provided; The slider unit includes a movable block that moves in coordination with the arc-shaped track, and the suction cup is connected to the movable block; The crank unit includes a second drive component, an eccentric wheel, and a connecting rod. The two ends of the connecting rod are rotatably connected to the eccentric wheel and the moving block, respectively. The second drive component is used to drive the eccentric wheel to rotate.

[0012] Furthermore, the moving block is provided with at least two first rollers that roll along the arc-shaped track.

[0013] Furthermore, the movable block includes two blocks located on both sides of the second frame, the first roller is located between the two blocks, and second rollers that roll in cooperation with the sides of the second frame are also provided around the blocks.

[0014] The beneficial effects of this utility model are reflected in: This invention, by adopting a cam mechanism structure, drives the corresponding abutment block and baffle to move, which can adapt to the rhythm of high-speed production, has a long service life and fast response speed. Furthermore, by enabling the first driving component to synchronously drive the two cam mechanisms, the operation between the two cam mechanisms is smoother, the cycle accuracy is high, and there will be no mis-beats. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the working state of the lid-opening device described in this utility model; Figure 2 This is a front view schematic diagram of the opening device of this utility model in its working state; Figure 3 This is a schematic diagram of the pushing component described in this utility model; Figure 4 This is a schematic diagram showing the distribution of cam one and cam two in this utility model; Figure 5 This is a schematic diagram of the structure of the flip-top assembly described in this utility model; Figure 6 This is a schematic diagram of the structure of the movable block described in this utility model.

[0016] In the picture: 1. Flip-top assembly; 11. Suction cup; 12. Second frame; 13. Arc track; 14. Moving block; 141. First roller; 142. Block; 143. Second roller; 15. Second drive component; 16. Eccentric wheel; 17. Connecting rod; 2. Pushing assembly; 21. First frame; 22. Abutting unit; 221. Abutting block; 222. Cam one; 223. First sliding block; 224. First moving rod; 225. First elastic reset member; 226. First driven member; 23. Pushing unit; 231. Baffle; 232. Cam two; 233. Second sliding block; 234. Second moving rod; 235. Second elastic reset member; 236. Second driven member; 3. First driving component; 4. Conveyor belt; 5. Packaging box. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0018] like Figure 1 , Figure 2 As shown, this utility model discloses a lid-opening device, comprising: The flip cover assembly 1 is provided with a suction cup 11 for adsorbing the upper cover. After the upper cover is adsorbed by the suction cup 11, the flip cover assembly 1 is used to drive the suction cup 11 to pivot the upper cover relative to the lower cover in a preset direction to open the upper cover. The push assembly 2, located on the opposite side of the flip-top assembly 1, includes a first frame 21, a contact unit 22 and a push unit 23 mounted on the first frame 21. The contact unit 22 includes a first cam mechanism and a contact block 221. The first cam mechanism drives the contact block 221 to abut against the bottom of the lower cover during the opening of the upper cover of the flip-top assembly 1, thus cooperating with the flip-top assembly 1 to open the upper cover. The push unit 23 includes a second cam mechanism and a baffle 231. The second cam mechanism drives the baffle 231 to open between the upper cover and the lower cover to a predetermined angle, thereby inserting the baffle 231 into the gap between the upper cover and the lower cover. The first driving component 3 is disposed on the first frame 21. The first cam mechanism includes a first cam 222 and the second cam mechanism includes a second cam 232. The first driving component 3 drives the first cam 222 and the second cam 232 to rotate synchronously.

[0019] Among them, such as Figure 4 As shown, the first cam 222 and the second cam 232 are coaxially arranged and the cam push stroke sections are oriented differently, so that the first driving component 3 drives the first cam 222 and the second cam 232 to rotate synchronously, thereby achieving the purpose of sequentially driving the corresponding abutment block 221 and baffle 231 to move.

[0020] In practice, the packaging box 5 to be opened is conveyed to the flip-top assembly 1 via the conveyor belt 4. The flip-top assembly 1 and the push-off assembly 2 are located on opposite sides of the conveyor belt 4, and the packaging box 5 is conveyed on the conveyor belt 4 with its open side facing the push-off mechanism. After the packaging box 5 is in place, the first cam mechanism drives the abutment block 221 to abut against the bottom of the lower cover during the opening of the upper cover by the flip-top assembly 1, preventing the lower cover from shifting during the opening process. (It should be noted that there is a stop block on the other side of the conveyor belt 4 opposite to the abutment block 221.) Typically used to guide objects within the conveyor belt 4, this is a standard part of the conveyor belt 4 itself. Using this stop (and its connection to the conveyor), the flip-top assembly 1 operates, opening the upper cover to a predetermined angle. Then, the second cam mechanism drives the baffle 231 to insert into the gap between the upper and lower covers. The baffle 231 serves two purposes: firstly, it prevents the upper cover from springing back; secondly, it further pushes the upper cover, widening the gap between the upper and lower covers, thus reducing the trajectory length swept by the suction cup 11 and shortening the cycle time. After opening, the conveyor belt 4 transports the opened packaging box 5 to the next workstation.

[0021] Preferably, the first drive component 3 is a motor in the prior art, and cam 1 222 and cam 232 are coaxially arranged on the rotating shaft of the motor. Of course, the first drive component 3 can also be a pneumatic motor, hydraulic motor, etc.

[0022] This utility model, by adopting the structure of a cam mechanism, drives the corresponding abutment block 221 and baffle 231 to move, which can adapt to the rhythm of high-speed production, and has a long service life and fast response speed. Furthermore, by making the first driving component 3 drive the two cam mechanisms synchronously, the operation between the two cam mechanisms is smoother, the cycle accuracy is high, and there will be no mis-beats.

[0023] It should be noted that the flip cover assembly 1 can be any device known in the prior art capable of opening the top cover.

[0024] like Figure 2 , Figure 3 As shown, the first cam mechanism includes: The first sliding block 223 is laterally slidably disposed on the first frame 21 and can move toward and away from the lower cover, and the abutment block 221 is disposed at one end of the first sliding block 223; The first moving rod 224 has one end connected to the first sliding block 223 and the other end extending to the cam 222 and having a first follower 226 that contacts the cam 222. The first elastic reset member 225 is disposed on the first frame 21. One end of the member is fixed to the first frame 21 or to another position on the frame (not shown in the figure), and the other end is connected to the first moving rod 224 to drive the first moving rod 224 to reset.

[0025] The second cam mechanism includes: The second sliding block 233 is laterally slidably disposed on the first frame 21 and can move toward and away from the lower cover. The baffle 231 is disposed at one end of the second sliding block 233. The second moving rod 234 has one end connected to the second sliding block 233, and the other end extends to the second cam 232 and has a second follower 236 that contacts the second cam 232. The second elastic reset member 235 is disposed on the first frame 21. One end of the member is fixedly connected to the first frame 21 or to another position on the frame not shown in the figure, and the other end is connected to the second moving rod 234 for driving the second moving rod 234 to reset.

[0026] Specifically, guide rails are respectively provided at the positions of the first sliding block 223 and the second sliding block 233 on the first frame 21, and the first sliding block 223 and the second sliding block 233 are slidably mounted on the guide rails. The first elastic reset member 225 and the second elastic reset member 235 are both springs, which are located at the top of the first moving rod 224 and the second moving rod 234. The two ends of the springs are respectively fixedly connected to the corresponding moving rods and other positions on the first frame 21 or the frame (not shown in the figure) by bolts.

[0027] During operation, cam 1 222 and cam 232 contact the corresponding follower, pushing the corresponding moving rod to move. The moving rod drives the corresponding sliding block to move towards and away from the lower cover, thereby driving the corresponding abutting block 221 and baffle 231 to perform the actions of abutting the bottom of the lower cover and inserting the baffle 231, respectively.

[0028] Preferably, the first follower 226 and the second follower 236 are rollers respectively disposed on the corresponding moving rods, and the rollers are in rolling cooperation with the corresponding cams.

[0029] It should be noted that the first frame 21 is U-shaped, including a base plate and two side uprights, for easy viewing. Figure 3 One of the upright panels has been omitted.

[0030] like Figure 5 , Figure 6As shown, the flip-top assembly 1 includes a second frame 12, a crank unit and a slider unit. The crank unit and the slider unit constitute a crank-slider mechanism. The movement trajectory of the slider unit is arc-shaped and located above the packaging box 5 to be opened. The slider unit is provided with a suction cup 11 for adsorbing the top cover. The suction cup 11 moves together with the slider unit, adsorbs the top cover and drives the top cover to open to one side. The crank unit and the slider unit are mounted on the second frame 12, which is provided with an arc-shaped track 13. The slider unit includes a moving block 14 that moves in conjunction with the arc-shaped track 13. The suction cup 11 is connected to the moving block 14. The portion of the arc-shaped track 13 of the second frame 12 is located above the packaging box 5 to be opened. The crank unit includes a second drive component 15, an eccentric wheel 16, and a connecting rod 17. The two ends of the connecting rod 17 are rotatably connected to the eccentric wheel 16 and the moving block 14, respectively. The second drive component 15 is used to drive the eccentric wheel 16 to rotate.

[0031] This design, which uses a crank-slider mechanism to move the suction cup 11, is more adaptable to the pace of high-speed production compared to the conventional method of using a cylinder to move the suction cup 11. It also has a longer service life and a faster response speed.

[0032] Preferably, the suction cup 11 is a vacuum negative pressure suction cup 11, which adsorbs the top cover by connecting an external negative pressure device.

[0033] Preferably, the second drive component 15 is an electric motor as used in the prior art, but it can also be a pneumatic motor, hydraulic motor, etc.

[0034] like Figure 5 , Figure 6 As shown, the arc-shaped track 13 is a guide groove opened on the second frame 12, and the moving block 14 is provided with at least two first rollers 141 that roll in cooperation with the guide groove.

[0035] In practice, the setting of at least two first rollers 141 allows the moving block 14 to change its posture when it is displaced, thereby enabling the top cover to be flipped open more effectively.

[0036] like Figure 6 As shown, the movable block 14 includes two blocks 142 located on both sides of the second frame 12, with a first roller 141 located between the two blocks 142. Second rollers 143 are also provided around the perimeter of each block 142, engaging with the sides of the second frame 12 in a rolling manner. This design further ensures that the movable block 14 will not derail, improving structural reliability.

[0037] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0038] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0039] Additionally, "multiple" refers to two or more.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lid-opening device, characterized in that, include: A flip cover assembly (1) is provided with a suction cup (11) for adsorbing the upper cover. After the upper cover is adsorbed by the suction cup (11), the flip cover assembly (1) is used to drive the suction cup (11) to pivot the upper cover relative to the lower cover in a preset direction to open the upper cover. The push assembly (2) is located on the opposite side of the flip assembly (1), including a first frame (21), an abutting unit (22) and a pushing unit (23) on the first frame (21). The abutting unit (22) includes a first cam mechanism and an abutting block (221). The first cam mechanism drives the abutting block (221) to abut the bottom of the lower cover during the opening of the upper cover of the flip assembly (1). The pushing unit (23) includes a second cam mechanism and a baffle (231). When the second cam mechanism drives the baffle (231) to open to a predetermined angle between the upper cover and the lower cover, the baffle (231) is inserted into the gap between the upper cover and the lower cover. The first driving component (3) is mounted on the first frame (21). The first cam mechanism includes a first cam (222), and the second cam mechanism includes a second cam (232). The first driving component (3) drives the first cam (222) and the second cam (232) to rotate synchronously.

2. The lid-opening device according to claim 1, characterized in that, The first cam (222) and the second cam (232) are coaxially arranged. The first driving component (3) drives the first cam (222) and the second cam (232) to rotate synchronously, thereby driving the corresponding abutment block (221) and baffle (231) to move in sequence.

3. The lid-opening device according to claim 1 or 2, characterized in that, The first cam mechanism includes: The first sliding block (223) is laterally slidably disposed on the first frame (21) and can move toward and away from the lower cover, and the abutment block (221) is disposed at one end of the first sliding block (223); A first moving rod (224) has one end connected to a first sliding block (223) and the other end extending to the cam (222) and having a first follower (226) in contact with the cam (222); The first elastic reset member (225) has one end fixed and the other end connected to the first moving rod (224) for driving the first moving rod (224) to reset.

4. The lid-opening device according to claim 1 or 2, characterized in that, The second cam mechanism includes: The second sliding block (233) is laterally slidably disposed on the first frame (21) and can move toward and away from the lower cover. The baffle (231) is disposed at one end of the second sliding block (233). The second moving rod (234) has one end connected to the second sliding block (233) and the other end extending to the second cam (232) and having a second follower (236) in contact with the second cam (232); The second elastic reset member (235) has one end fixed and the other end connected to the second moving rod (234) for driving the second moving rod (234) to reset.

5. The lid-opening device according to claim 1 or 2, characterized in that, The flip-top assembly (1) includes a crank unit and a slider unit, which together form a crank-slider mechanism. The slider unit has an arc-shaped movement trajectory and is located above the packaging box (5) to be opened. The slider unit is provided with a suction cup (11) for adsorbing the top cover. The suction cup (11) moves together with the slider unit, adsorbs the top cover, and drives the top cover to open to one side.

6. The lid-opening device according to claim 5, characterized in that, Also includes: The second frame (12) is provided with the crank unit and the slider unit, and the second frame (12) is provided with an arc track (13). The slider unit includes a movable block (14) that moves in conjunction with the arc-shaped track (13), and the suction cup (11) is connected to the movable block (14); The crank unit includes a second drive component (15), an eccentric wheel (16), and a connecting rod (17). The two ends of the connecting rod (17) are rotatably connected to the eccentric wheel (16) and the moving block (14), respectively. The second drive component (15) is used to drive the eccentric wheel (16) to rotate.

7. The lid-opening device according to claim 6, characterized in that, The moving block (14) is provided with at least two first rollers (141) that roll along the arc track (13).

8. The lid-opening device according to claim 7, characterized in that, The movable block (14) includes two blocks (142) located on both sides of the second frame (12), the first roller (141) is located between the two blocks (142), and the blocks (142) are also provided with second rollers (143) that roll in cooperation with the side of the second frame (12).

Images