A clamping mechanism and equipment

Abstract

This utility model discloses a pressing mechanism and equipment. The pressing mechanism includes an installation part, a pressing part, a rotating part, and a driving part. The installation part has a pressing surface and a feeding position located at one end of the pressing surface. The pressing part is movably disposed on the installation part, and its orthographic projection on the installation part falls on the pressing surface. It can move closer to and away from the pressing surface during movement. The rotating part is rotatably disposed at the end of the pressing part near the feeding position, and its rotation axis is parallel to the pressing surface and intersects the arrangement direction of the feeding position and the pressing part. The driving part is disposed on the installation part and connected to the pressing part. In this solution, during the rotation of the rotating part, it guides and presses down on the protruding or raised parts of the goods, so that the goods move relatively flat under the pressing part, reducing the probability of interference between the pressing part and the protruding or raised parts of the goods, mitigating the impact of misalignment and re-transfer caused by interference of the protruding or raised parts of the goods by the pressing part, improving the probability of normal goods transfer, and improving the pressing effect.

Description

Technical Field

[0001] This utility model relates to the technical field of cigarette sorting and packaging equipment, specifically to a pressing mechanism and equipment. Background Technology

[0002] After the cigarettes are sorted and collected, they enter the packaging stage. The pressing mechanism, together with the side pressure plate, stacks cigarettes of different lengths, widths and heights into cigarette stacks, and provides reasonable pressure to stabilize the cigarette stacks, ensuring that the packaging quality and volume are appropriate for distribution, verification and storage.

[0003] Publication No. CN111099058A discloses a dual-station high-speed full-specification cigarette packaging machine. One side of the station palletizing and packaging mechanism is equipped with a wrapping machine cigarette pushing mechanism, and the side of the wrapping machine cigarette pushing mechanism is equipped with a film feeding mechanism. The film feeding mechanism is equipped with a cigarette pressing mechanism and a film cutting mechanism. A conveyor belt is installed at the rear of the two sets of station palletizing and packaging mechanisms, and a transfer conveyor is installed at the outlet of the conveyor belt. After the wrapping machine cigarette pushing mechanism completes its operation, the cigarette pressing mechanism will move downward to press down the cigarette pack and then complete the film cutting operation through the film cutting mechanism.

[0004] In practical applications, to improve pressing efficiency, the pressing block of the pressing mechanism is usually placed about 50 mm above the goods for standby. Once the goods are in place, the pressing block is driven to quickly descend and press the goods. However, because the pressing block is close to the goods, when the goods are being moved under the pressing block, any protruding or raised parts of the goods can easily interfere with the pressing block, hindering the movement of the goods and reducing the pressing effect. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a pressing mechanism to solve the technical problem that in order to improve pressing efficiency, the pressing block is usually placed about 50 mm above the goods and waits so that after the goods are placed in place, the pressing block is driven to move down quickly and press the goods. However, because the pressing block is close to the goods, when the goods are sent under the pressing block, the protruding or raised parts of the goods are easy to interfere with the pressing block, hindering the movement of the goods and reducing the pressing effect.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] In a first aspect, this utility model provides a clamping mechanism, comprising:

[0008] The mounting section is provided with a pressing surface and has a feed position located at one end of the pressing surface;

[0009] A pressing part is movably disposed on the mounting part, and its orthographic projection on the mounting part falls on the pressing surface, and it can move closer to and further away from the pressing surface when it is in motion;

[0010] A rotating part is rotatably disposed at one end of the pressing part near the feeding position, and its rotation axis is parallel to the pressing surface and intersects the arrangement direction of the feeding position and the pressing part; and

[0011] A drive unit is provided on the mounting part and connected to the clamping part, for driving the clamping part to move closer to and away from the pressing surface.

[0012] In some embodiments, the distance between the pressing part and the pressing surface is a, and the distance between the rotating part and the pressing surface is b, satisfying that a > b.

[0013] In some embodiments, the clamping part includes a rigid connecting seat and an elastic seat. The rigid connecting seat is connected to the driving part and can move closer to and away from the pressing surface under the drive of the driving part. The elastic seat is connected to the rigid connecting seat and is located on the side of the rigid connecting seat closer to the pressing surface.

[0014] The rotating part is rotatably mounted on the rigid connecting seat and is located at one end of the rigid connecting seat near the feed position.

[0015] In some embodiments, the rigid connecting seat is provided with fixing holes in a direction away from the pressing surface;

[0016] The drive unit includes a drive cylinder and two fixing nuts. The cylinder body of the drive cylinder is installed on the mounting part and is arranged in a direction away from the pressing surface. The end of its telescopic rod near the telescopic pressing surface is provided with an external thread and passes through the fixing hole. The two fixing nuts are screwed on the external thread of the telescopic rod and are located at both ends of the extension direction of the fixing hole.

[0017] In some embodiments, both the rigid connecting seat and the elastic seat extend in a direction away from the feed position;

[0018] The drive unit also includes a slide rail, which is connected to the rigid connecting seat and located on the side of the rigid connecting seat away from the pressing surface. The slide rail extends in a direction away from the pressing surface and is spaced apart from the fixing hole in a direction away from the feed position. The mounting part is provided with a slide groove for the slide rail to slide.

[0019] In some embodiments, the drive cylinder is a bidirectional adjustable speed cylinder.

[0020] In some embodiments, the clamping mechanism further includes two mounting plates, which are detachably connected to the clamping part and located at one end of the clamping part near the feed position, and are spaced apart along the rotation axis of the rotating part. Each mounting plate is provided with a shaft hole in the direction close to the other mounting plate.

[0021] The rotating part includes a rotating roller and two rotating shafts. The two rotating shafts are respectively connected to the two ends of the rotating roller in the axial direction and are respectively rotatably inserted into the shaft holes of the two assembly plates.

[0022] In some embodiments, the pressing part is provided with two sets of mounting screw holes on the side away from the pressing surface, and the two sets of mounting screw holes are arranged at intervals along the rotation axis of the rotating part;

[0023] The assembly plate is bent along a direction close to another assembly plate to form a bent plate. The bent plate is located at the end of the assembly plate away from the pressing surface and has a connecting hole.

[0024] The clamping mechanism also includes two sets of assembly bolts. The two sets of assembly bolts, the two assembly plates, and the two sets of assembly screw holes correspond one-to-one. Each assembly bolt passes through the corresponding connecting hole and is threaded to the clamping part via the corresponding assembly screw hole.

[0025] In some embodiments, the clamping mechanism further includes a pressure sensor disposed on the clamping part for detecting the pressure when the clamping part presses against the material.

[0026] Secondly, this solution also provides a clamping device, which includes the above-mentioned clamping mechanism;

[0027] The clamping mechanism is provided in multiple ways, and the multiple clamping mechanisms are arranged at intervals along the rotation axis of the rotating part.

[0028] Compared with the prior art, the pressing mechanism provided by this utility model moves the goods from the feeding position toward the mounting part when pressing the goods. When there is a partial protrusion or tilting of the goods, since the rotating part is located at the end of the pressing part near the feeding position, the protruding or tilting part of the goods will first contact the rotating part and drive the rotating part to rotate around its rotation axis. During the rotation of the rotating part, it will guide and press down the protruding or tilting part of the goods, so that the goods move relatively flat to the bottom of the pressing part. This reduces the probability of interference between the pressing part and the protruding or tilting part of the goods, reduces the impact of the goods being misaligned and having to be re-moved due to interference from the pressing part, improves the probability of normal movement of goods, and improves the pressing effect. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the pressing device (partially shown) according to an embodiment of the present invention;

[0030] Figure 2 yes Figure 1 A schematic diagram of the intermediate clamping device (partially shown in the mounting section) from another angle;

[0031] Figure 3 yes Figure 1 Schematic diagram of the intermediate clamping mechanism;

[0032] Figure 4 yes Figure 3 A partial schematic diagram of the intermediate clamping mechanism.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Mounting part; 11. Pressing surface; 12. Mounting platform; 13. Mounting bracket; 2. Pressing part; 21. Rigid connecting seat; 22. Elastic seat; 3. Rotating part; 31. Rotating roller; 32. Rotating shaft; 4. Driving part; 41. Driving cylinder; 411. Cylinder body; 412. Telescopic rod; 42. Fixing nut; 43. Slide rail; 5. Assembly plate; 5a. Shaft hole; 51. Bending plate; 51a. Connecting hole. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0036] To address the technical problem in existing technologies where, to improve pressing efficiency, a pressing block is typically placed approximately 50 mm above the goods, ready to descend quickly and press down once the goods are in place. However, due to the close proximity of the pressing block to the goods, protruding or raised parts of the goods can easily interfere with the pressing block during the process of moving the goods under it, hindering the movement of the goods and reducing the pressing effect. This invention provides a pressing mechanism in which the rotating part guides and presses down on the protruding or raised parts of the goods during rotation, allowing the goods to move relatively evenly under the pressing part. This avoids interference between the pressing part and the protruding or raised parts of the goods, reduces the impact of misalignment caused by interference from the pressing part, increases the probability of normal goods movement, and improves the pressing effect.

[0037] It should be noted that the clamping mechanism described in this utility model is used in, but not limited to, clamping equipment. For ease of explanation, this utility model only uses the application of the clamping mechanism in clamping equipment as an example. The principle of the clamping mechanism applied to other types of equipment is essentially the same as that applied to clamping equipment, and will not be described in detail here.

[0038] Please see Figures 1 to 3 , Figures 1 to 3This is a schematic diagram of the pressing mechanism in one embodiment of the present invention. The pressing mechanism includes a mounting part 1, a pressing part 2, a rotating part 3, and a driving part 4. The mounting part 1 is provided with a pressing surface 11 and has a feeding position located at one end of the pressing surface 11. The pressing part 2 is movably disposed on the mounting part 1, and its orthographic projection on the mounting part 1 falls on the pressing surface 11. When moving, it can approach and move away from the pressing surface 11. The rotating part 3 is rotatably disposed at one end of the pressing part 2 near the feeding position, and its rotation axis is parallel to the pressing surface 11 and intersects the feeding position and the arrangement direction of the pressing part 2. The driving part 4 is disposed on the mounting part 1 and connected to the pressing part 2, and is used to drive the pressing part 2 to approach and move away from the pressing surface 11.

[0039] When pressing goods, the pressing mechanism provided by this utility model moves the goods from the feeding position toward the mounting part 1. When there is a partial protrusion or tilting of the goods, since the rotating part 3 is located at the end of the pressing part 2 near the feeding position, the protruding or tilting part of the goods will first contact the rotating part 3 and drive the rotating part 3 to rotate around its rotation axis. During the rotation of the rotating part 3, it will guide and press down the protruding or tilting part of the goods, so that the goods move relatively flat to the bottom of the pressing part 2. This reduces the probability of interference between the pressing part 2 and the protruding or tilting part of the goods, reduces the impact of the goods being misaligned and having to be moved again due to interference from the pressing part 2, increases the probability of normal movement of goods, and improves the pressing effect.

[0040] In one embodiment, the distance between the pressing part 2 and the pressing surface 11 is a, and the distance between the rotating part 3 and the pressing surface 11 is b, satisfying that a > b.

[0041] In this embodiment, the distance between the pressing part 2 and the pressing surface 11 is set to be greater than the distance between the rotating part 3 and the pressing surface 11, so that the rotating part 3 can effectively press the protruding or raised parts of the goods to a height lower than the pressing part 2, thereby ensuring that the goods can move stably under the pressing part 2, effectively avoiding interference between the pressing part 2 and the goods, and improving the pressing effect.

[0042] It should be noted that the mounting part 1 can be configured as a mounting platform, mounting base, or mounting bracket. Specifically, in one embodiment, the mounting part 1 includes both a mounting platform 12 and a mounting bracket 13. The mounting bracket 13 is mounted on the upper side of the mounting platform 12, the pressing surface 11 is formed on the upper end surface of the mounting platform 12, and the driving part 4 is provided on the mounting bracket 13. Furthermore, when moving goods, the goods are moved from the feeding position of the mounting part 1 along the table surface of the mounting platform 12 until the goods are moved to the area below the pressing part 2.

[0043] In another embodiment, a drive belt is provided on the platform of the mounting part 1, or the goods are moved manually to the corresponding pressing surface 11 of the mounting part 1, and the pressing surface 11 can also be a side of the mounting part 1. In addition, the pressing part 2 can be configured as a smoke suppressor, smoke suppressor block, smoke suppressor frame or other forms.

[0044] In one embodiment, please refer to Figure 3 and Figure 4 The pressing part 2 includes a rigid connecting seat 21 and an elastic seat 22. The rigid connecting seat 21 is connected to the driving part 4 and can move closer to and away from the pressing surface 11 under the drive of the driving part 4. The elastic seat 22 is connected to the rigid connecting seat 21 and is located on the side of the rigid connecting seat 21 close to the pressing surface 11. The rotating part 3 is rotatably disposed on the rigid connecting seat 21 and is located at the end of the rigid connecting seat 21 close to the feeding position.

[0045] In this embodiment, the rigid connecting seat 21 of the pressing part 2 is connected to the driving part 4, so that the driving part 4 stably drives the rigid connecting seat 21 to approach and move away from the pressing surface 11. At the same time, the elastic seat 22 on the lower side of the rigid connecting seat 21 is used to elastically press the goods against the pressing surface 11, so as to avoid the pressing part 2 damaging the goods and improve the pressing quality.

[0046] It should be noted that the rigid connecting seat 21 is made of steel, and the elastic seat 22 is made of black sponge. Furthermore, the drive unit 4 can be configured as an electric actuator, hydraulic cylinder, linear motor, or other types.

[0047] In one embodiment, the rigid connecting seat 21 is provided with a fixing hole in the direction away from the pressing surface 11; the driving part 4 includes a driving cylinder 41 and two fixing nuts 42. The cylinder body 411 of the driving cylinder 41 is installed on the mounting part 1 and is arranged in the direction away from the pressing surface 11. The telescopic rod 412 is provided with an external thread at one end near the telescopic pressing surface 11 and passes through the fixing hole. The two fixing nuts 42 are screwed on the external thread of the telescopic rod 412 and are located at both ends in the extension direction of the fixing hole.

[0048] In this embodiment, the rigid connecting seat 21 is driven to move closer to and further away from the pressing surface 11 by the driving cylinder 41, and the telescopic rod 412 of the driving cylinder 41 is detachably connected to the rigid connecting seat 21 by two nuts. The elastic seat 22 is then connected to the rigid connecting seat 21 by a buckle or bolt, thereby enabling regular maintenance and replacement of each component and improving convenience.

[0049] In one embodiment, both the rigid connecting seat 21 and the elastic seat 22 extend in a direction away from the feed position; the drive unit 4 also includes a slide rail 43, which is connected to the rigid connecting seat 21 and located on the side of the rigid connecting seat 21 away from the pressing surface 11, and extends in a direction away from the pressing surface 11, and is spaced apart from the fixing hole in a direction away from the feed position; the mounting part 1 is provided with a slide groove for the slide rail 43 to slide.

[0050] In this embodiment, the pressing part 2 is extended along the cargo conveying direction to expand the pressing area and improve practicality. It is also balanced and driven by the slide rail 43 and the drive cylinder 41 in the extending direction to improve the stability of the pressing part 2.

[0051] In one embodiment, the drive cylinder 41 is a bidirectional adjustable speed cylinder.

[0052] In this embodiment, the cylinder body 411 of the drive cylinder 41 has air inlets on both sides of the piston axis, so that the telescopic rod 412 of the drive cylinder 41 can extend and retract flexibly at a set speed, improving practicality.

[0053] In one embodiment, the clamping mechanism further includes two assembly plates 5, which are detachably connected to the clamping part 2 and located at one end of the clamping part 2 near the feed position. They are spaced apart along the rotation axis of the rotating part 3, and each assembly plate 5 has a shaft hole 5a in the direction close to the other assembly plate 5. The rotating part 3 includes a rotating roller 31 and two rotating shafts 32, which are respectively connected to the two ends of the rotating roller 31 in the axial direction and are respectively rotatably inserted into the shaft holes 5a of the two assembly plates 5.

[0054] In this embodiment, the rotating roller 31 is sandwiched between two assembly plates 5 to ensure that the rotating roller 31 can rotate stably, and the assembly plate 5 is detachably connected to the pressing part 2, so that the rotating roller 31 can be replaced periodically to ensure that the rotating roller 31 stably guides the movement of goods.

[0055] It should be noted that, in one embodiment, rotating rollers 31 with various outer diameters are provided, thereby allowing the appropriate rotating roller 31 to be selected and installed on the mounting plate 5 according to requirements, improving flexibility. Furthermore, the mounting plate 5 and the clamping part 2 can be detachably connected via pins, snaps, or other means.

[0056] In one embodiment, the clamping part 2 is provided with two sets of mounting screw holes on the side away from the pressing surface 11, and the two sets of mounting screw holes are arranged at intervals along the rotation axis of the rotating part 3; the mounting plate 5 is bent along the direction close to the other mounting plate 5 to form a bent plate 51, the bent plate 51 is located at the end of the mounting plate 5 away from the pressing surface 11, and is provided with a connecting hole 51a; the clamping mechanism also includes two sets of mounting bolts, the two sets of mounting bolts, the two mounting plates 5 and the two sets of mounting screw holes are one-to-one, each mounting bolt passes through the corresponding connecting hole 51a, and is threadedly connected to the clamping part 2 through the corresponding mounting screw hole.

[0057] In this embodiment, the assembly plate 5 and the clamping part 2 are detachably connected by assembly bolts, resulting in a simple and reliable structure. Simultaneously, the assembly plate 5 and the bending plate 51 provide some protection for the rotating shaft 32 of the rotating roller 31, reducing the probability of foreign objects entering between the rotating roller 31 and the assembly plate 5, thus ensuring the stable rotation of the rotating roller 31.

[0058] In one embodiment, the clamping mechanism further includes a pressure sensor disposed on the clamping part 2 for detecting the pressure when the clamping part 2 presses against the material.

[0059] In this embodiment, the clamping force of the clamping part 2 is detected in real time by a pressure sensor to prevent the driving part 4 from overloading the clamping part 2 and pressing it against the goods, which could lead to damage to the goods or the mechanism. It should be noted that the specific structure and principle of the pressure sensor are existing technologies and will not be described in detail here.

[0060] Furthermore, this utility model also provides a pressing device, which includes the pressing mechanism described in any of the above claims. Multiple pressing mechanisms are provided, and these multiple pressing mechanisms are arranged sequentially at intervals along the rotation axis of the rotating part 3. It should be noted that the detailed structure of the pressing mechanism of the pressing device can be referred to the embodiments of the pressing mechanism described above, and will not be repeated here. Since the pressing mechanism described above is used in the pressing device of this utility model, the embodiments of the pressing device of this utility model include all the technical solutions of all the embodiments of the pressing mechanism described above, and the achieved technical effects are also completely the same, and will not be repeated here.

[0061] Specifically, in this embodiment, the clamping mechanism is provided in five sets.

[0062] To better understand this utility model, the following is combined with... Figures 1 to 4 The technical solution of this utility model is described in detail below:

[0063] In this design, initially, the drive cylinder 41 retracts, positioning the elastic seat 22 50mm above the cargo. Then, the cargo moves along the platform of the mounting section 1 towards the underside of the elastic seat 22. During this movement, any protrusions or raised parts of the cargo first contact the rotating roller 31 and are flattened by it under the guidance of the roller 31, ensuring stable movement of the cargo below the elastic seat 22 and preventing interference between the elastic seat 22 and the cargo.

[0064] After the goods are moved into place, the PLC (controller) starts the drive cylinder 41 to slowly extend, so that the elastic seat 22 contacts the surface of the goods. The pressure sensor provides real-time feedback on the pressure values ​​at each point. The PLC calculates the surface contour of the goods based on the data and adjusts the extension difference of each drive cylinder 41 with an accuracy of ±0.1mm to ensure that the elastic seat 22 fits the surface of the goods as completely as possible. When the pressure sensor detects that the pressure difference at each point is ≤1N, the drive cylinder 41 maintains the current thrust, within a preset range of 50-200N, and remains locked. At this time, the five pressing mechanisms apply the vertical thrust of the drive cylinder 41 along the vertical direction of the goods surface to achieve uniform pressing. After pressing is completed, the drive cylinder 41 retracts by reverse airflow, causing the elastic seat 22 to rise to the same initial position, and the next cycle begins.

[0065] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A compression mechanism, characterized in that, include: The mounting section is provided with a pressing surface and has a feed position located at one end of the pressing surface; A pressing part is movably disposed on the mounting part, and its orthographic projection on the mounting part falls on the pressing surface, and it can move closer to and further away from the pressing surface when it is in motion; A rotating part is rotatably disposed at one end of the pressing part near the feeding position, and its rotation axis is parallel to the pressing surface and intersects the arrangement direction of the feeding position and the pressing part; and A drive unit is provided on the mounting part and connected to the clamping part, for driving the clamping part to move closer to and away from the pressing surface.

2. The holdback mechanism of claim 1, wherein, The distance between the pressing part and the pressing surface is a, and the distance between the rotating part and the pressing surface is b, satisfying that a > b.

3. The holdback mechanism of claim 1, wherein, The pressing part includes a rigid connecting seat and an elastic seat. The rigid connecting seat is connected to the driving part and can move closer to and away from the pressing surface under the drive of the driving part. The elastic seat is connected to the rigid connecting seat and is located on the side of the rigid connecting seat closer to the pressing surface. The rotating part is rotatably mounted on the rigid connecting seat and is located at one end of the rigid connecting seat near the feed position.

4. The holdback mechanism of claim 3, wherein, The rigid connecting seat is provided with fixing holes in a direction away from the pressing surface; The drive unit includes a drive cylinder and two fixing nuts. The cylinder body of the drive cylinder is installed on the mounting part and is arranged in a direction away from the pressing surface. The end of its telescopic rod near the telescopic pressing surface is provided with an external thread and passes through the fixing hole. The two fixing nuts are screwed on the external thread of the telescopic rod and are located at both ends of the extension direction of the fixing hole.

5. The holdback mechanism of claim 4, wherein, Both the rigid connecting seat and the elastic seat extend away from the feed position. The drive unit also includes a slide rail, which is connected to the rigid connecting seat and located on the side of the rigid connecting seat away from the pressing surface. The slide rail extends in a direction away from the pressing surface and is spaced apart from the fixing hole in a direction away from the feed position. The mounting part is provided with a slide groove for the slide rail to slide.

6. The holdback mechanism of claim 4 wherein, The drive cylinder is a bidirectional adjustable speed cylinder.

7. The holdback mechanism of claim 1, wherein, The clamping mechanism further includes two assembly plates, which are detachably connected to the clamping part and located at one end of the clamping part near the feed position. They are spaced apart along the rotation axis of the rotating part, and each assembly plate has a shaft hole in the direction close to the other assembly plate. The rotating part includes a rotating roller and two rotating shafts. The two rotating shafts are respectively connected to the two ends of the rotating roller in the axial direction and are respectively rotatably inserted into the shaft holes of the two assembly plates.

8. The clamping mechanism according to claim 7, characterized in that, The pressing part is provided with two sets of mounting screw holes on the side away from the pressing surface, and the two sets of mounting screw holes are arranged at intervals along the rotation axis of the rotating part; The assembly plate is bent along a direction close to another assembly plate to form a bent plate. The bent plate is located at the end of the assembly plate away from the pressing surface and has a connecting hole. The clamping mechanism also includes two sets of assembly bolts. The two sets of assembly bolts, the two assembly plates, and the two sets of assembly screw holes correspond one-to-one. Each assembly bolt passes through the corresponding connecting hole and is threaded to the clamping part via the corresponding assembly screw hole.

9. The clamping mechanism according to claim 1, characterized in that, The clamping mechanism also includes a pressure sensor, which is located on the clamping part and is used to detect the pressure when the clamping part presses against the material.

10. A pressing device, characterized in that, Includes the clamping mechanism as described in any one of claims 1 to 9; The clamping mechanism is provided in multiple ways, and the multiple clamping mechanisms are arranged at intervals along the rotation axis of the rotating part.

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