Bottle clamping mechanism

Abstract

The utility model discloses a bottle clamping mechanism which comprises a machine frame, a pair of bottle clamping assemblies and a supporting assembly connected between the two bottle clamping assemblies, each bottle clamping assembly comprises a linear driving mechanism arranged on the machine frame, a connecting rod mechanism and a clamping piece set arranged below the machine frame, and each clamping piece set comprises a plurality of clamping pieces horizontally arranged along a straight line. The clamping pieces of the two clamping piece sets are oppositely arranged at intervals, a plurality of pairs of clamping jaws are formed through the supporting assemblies, and each clamping piece set is in transmission connection with the execution end of the corresponding linear driving mechanism through the corresponding connecting rod mechanism so that the clamping jaws can do opening and closing movement. According to the bottle clamping device, bottle clamping of the multiple clamping jaws can be achieved through the pair of linear driving mechanisms by means of the connecting rod mechanism skillfully, the installation position of the linear driving mechanism serving as a drive can be far away from the clamping pieces, and therefore when bottles are placed and packaged, the clamping pieces can be driven through the execution end to loosen the bottles at a small-amplitude opening angle; and the box body is not easy to damage due to interference with the inner wall of the box body.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a bottle clamping mechanism. Background Technology

[0002] With the widespread adoption of automation, bottled products in the market are now generally packed automatically using various types of case packers. The bottle clamping mechanism, as one of the end-effectors of the case packer, is used to grip bottled products and, driven by the moving mechanism, transfer them into the case.

[0003] Currently, bottle clamping mechanisms are mainly divided into two types based on the clamping action: one type, such as the bottle box clamp disclosed in Chinese invention patent number CN109733663B, uses a finger cylinder to drive clamping plates fixed to two clamping ends of the finger cylinder, thereby realizing the swing of each clamping plate and thus completing the bottle clamping action; the other type, such as the multi-group bottle clamping mechanism for grout disclosed in Chinese utility model patent number CN218665370U, fixes multiple oppositely arranged clamping plates to two translation plates, and then uses at least two sets of cylinders to drive the two translation plates closer and further apart, thereby realizing the approach and departure of the clamping plates and thus completing the bottle clamping action. For the first solution, each set of clamping strips requires a set of cylinders, which is costly for multi-head clamping strip bottle gripping structures. For the second solution, although it enables multiple clamping strips to grip bottles simultaneously, a pair of cylinders can only drive one row of clamping strips. In packaging specifications, there are often multiple rows of bottles arranged in a structure that requires multiple reciprocating motions or the addition of multiple sets of bottle gripping mechanisms, which is also costly. Moreover, due to this translational clamping method, the translational movement is prone to interfering with the inner wall of the box in small spaces, which limits the applicable scenarios. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a bottle clamping mechanism. This mechanism can achieve simultaneous bottle clamping by multiple pairs of clamping plates through a pair of actuators. Furthermore, the actuators are located away from the clamping plates and use a linkage mechanism to drive the grippers to open and close. This mechanism is also applicable to boxes with limited space and has wider applicability.

[0005] The technical solution to achieve the purpose of this utility model is:

[0006] A bottle clamping mechanism includes a frame, a pair of bottle clamping assemblies, and a support assembly connecting the two bottle clamping assemblies. The bottle clamping assembly includes a linear drive mechanism and a linkage mechanism mounted on the frame, and a clamping plate group mounted below the frame. The clamping plate group includes multiple clamping plates arranged horizontally along a straight line. The clamping plates of the two clamping plate groups are arranged opposite each other with a gap, and multiple pairs of grippers are formed by the support assembly. Each clamping plate group is connected to the actuator of the corresponding linear drive mechanism through a corresponding linkage mechanism to make the grippers open and close.

[0007] Furthermore, the linkage mechanism includes a horizontally arranged push rod and an L-shaped connecting rod composed of a crossbar and a longitudinal bar. The linear drive mechanism is a cylinder. The middle part of the L-shaped connecting rod is rotatably connected to the frame, the upper end is movably connected to the piston rod of the cylinder, and the lower end is rotatably connected to the push rod. The clamping plate is installed on the corresponding push rod.

[0008] Furthermore, the top of the clamp is rotatably mounted on the push rod, and the support assembly includes a pair of parallel crossbars and a plurality of rotating shafts rotatably disposed between the two crossbars. The number of rotating shafts is the same as the total number of clamps, and the middle part of the clamp is fixedly connected to the corresponding rotating shaft.

[0009] Furthermore, the clip includes a clip body and a connecting piece. The top and middle parts of the clip body are detachably fixed to the connecting piece and the rotating shaft by screws, respectively. The lower end of the clip body is provided with an anti-slip block adapted to the bottle mouth.

[0010] Furthermore, the clip is fixedly mounted on the push rod, and the support assembly includes a connecting part that is slidably disposed between two push rods along the length direction of the push rod, and the two push rods are slidably connected along their length direction through the connecting part.

[0011] Furthermore, the connecting part is a limiting plate or a pair of limiting rods arranged in parallel.

[0012] Furthermore, the push rod is provided with a strip-shaped limiting groove along its length, and the two ends of the connecting part are inserted into the corresponding limiting groove and connected in a direction that is horizontal and perpendicular to the limiting groove.

[0013] Furthermore, the clip includes a clip body and a connecting piece. The top of the clip body is detachably fixed to the connecting piece by screws, and the lower end of the clip body is provided with an anti-slip block adapted to the bottle opening.

[0014] Furthermore, it also includes a translation mechanism, the moving end of which is connected to a horizontally arranged first mounting plate, and a second mounting plate is fixedly mounted on the top of the frame, with a quick-locking mechanism connecting the second mounting plate and the first mounting plate.

[0015] Furthermore, a spring-damped shock absorber is connected between the first mounting plate and the moving end of the translation mechanism.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects:

[0017] (1) This utility model cleverly utilizes a linkage mechanism, which drives two linkage mechanisms to move, thereby causing the relatively arranged clamping plates to move closer and further apart, thus completing the bottle clamping action. In the overall structural design, multiple clamping claws can be clamped by only one pair of linear drive mechanisms. Moreover, the installation position of the linear drive mechanism as the drive can be far away from the clamping plates, so that when the bottle is placed for packaging, the clamping plates can release the bottle with a small opening angle, which is less likely to interfere with the inner wall of the box and cause damage to the box. It has a wider range of applications.

[0018] (2) This utility model adopts a linkage mechanism composed of a push rod and an L-shaped connecting rod, which has a simple structure. The L-shaped connecting rod is driven by a cylinder and provides two different clamping jaw opening and closing methods. When the clamping plates are rotated and installed on the push rod, a support assembly composed of a rotating shaft and a crossbar is set up so that the two opposing clamping plates can form a swinging clamping jaw. The cylinder drives one end of the L-shaped connecting rod to swing slightly, thereby driving the two push rods to swing in opposite directions, so that the upper end of the clamping plates moves in a figure-eight or inverted figure-eight trajectory to achieve clamping. When the clamping plates are fixedly installed on the push rod, a support assembly composed of a limiting plate or a limiting rod is set up so that the two push rods are always parallel and connected, so that they move in opposite directions under the drive of the cylinder, thereby driving the clamping plates on them to achieve translational clamping, making the structure simpler.

[0019] (3) The clamp body of this utility model is a detachable structure, which can be replaced according to different bottle types, making it more adaptable and convenient for production changes; at the same time, it is equipped with anti-slip blocks, which can protect the bottle mouth and prevent wear on the one hand, and increase the contact friction force on the other hand, thereby improving the reliability of bottle gripping.

[0020] (4) This utility model uses a translation mechanism to move the frame and is equipped with a quick locking mechanism to connect two mounting plates that are connected to the translation mechanism and the frame respectively, making it easy to assemble and disassemble.

[0021] (5) By adding a spring damping shock absorber, this utility model makes the bottle placement action more stable. Attached Figure Description

[0022] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0023] Figure 1 This is a perspective view of Embodiment 1;

[0024] Figure 2 This is a partial structural diagram of Example 1;

[0025] Figure 3 This is a schematic diagram of the transmission structure of the cylinder and clamping plate in Example 1;

[0026] Figure 4 This is a schematic diagram of the structure of Example 2;

[0027] Figure 5 This is a schematic diagram of the structure of Example 3.

[0028] The labels in the attached diagram are:

[0029] Frame 1, Linear drive mechanism 2, Linkage mechanism 3, L-shaped connecting rod 3-1, Push rod 3-2, Limiting groove 3-2-1, Clamping plate group 4, Clamping plate 4-1, Translation mechanism 5, Guide rail 5-1, Belt conveyor 5-2, Slider 5-3, First mounting plate 6, Second mounting plate 7, Quick locking mechanism 8, Spring damping shock absorber 9, Crossbar 10, Rotating shaft 11, Hanging rod 12, Connecting part 13. Detailed Implementation

[0030] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0031] (Example 1)

[0032] like Figures 1 to 3 The bottle clamping mechanism shown includes a frame 1, a pair of bottle clamping assemblies, and a support assembly connecting the two bottle clamping assemblies. The bottle clamping assembly includes a linear drive mechanism 2 and a linkage mechanism 3 mounted on the frame 1, and a clamping plate group 4 mounted below the frame 1. Each clamping plate group 4 includes multiple clamping plates 4-1 arranged horizontally along a straight line. The clamping plates 4-1 of the two clamping plate groups 4 are arranged opposite each other at intervals and form multiple pairs of grippers through the support assembly. Each clamping plate group 4 is connected to the actuator of the corresponding linear drive mechanism 2 through the corresponding linkage mechanism 3, so that the grippers open and close to complete the bottle clamping action.

[0033] Specifically, this embodiment also includes a translation mechanism 5, comprising a guide rail 5-1, a belt conveyor 5-2 mounted on the guide rail 5-1, and a slider 5-3 slidably mounted on the guide rail 5-1. The slider 5-3 serves as the moving end and is fixedly connected to the belt of the belt conveyor 5-2, thereby achieving sliding. A first mounting plate 6 is horizontally mounted below the slider 5-3, and a second mounting plate 7 is fixedly mounted on the top of the frame 1. A quick-locking mechanism 8 connects the second mounting plate 7 and the first mounting plate 6, facilitating easy assembly and disassembly. The translation mechanism 5 drives the frame 1 to translate, completing the bottle transfer and mounting the entire structure on the lifting mechanism to achieve lifting movement, thereby completing the bottle placement. To improve the stability of the bottle placement action, this embodiment connects a spring damping shock absorber 9 between the first mounting plate 6 and the second mounting plate 7, making the bottle placement action more stable.

[0034] To improve bottle clamping efficiency, this embodiment has four parallel clamping plate groups 4. Correspondingly, each linkage mechanism 3 has two L-shaped connecting rods 3-1 and two push rods 3-2. The L-shaped connecting rods 3-1 consist of vertically arranged horizontal and vertical rods, while the push rods 3-2 are horizontally arranged. The four push rods 3-2 of the two linkage mechanisms 3 are arranged alternately in parallel, with the two push rods 3-2 of the same linkage mechanism 3 positioned outside the two L-shaped connecting rods 3-1. The clamping plates 4-1 of the two clamping plate groups 4 are connected to the two push rods 3-2 of the left linkage mechanism 3, and the clamping plates 4-1 of the other two clamping plate groups 4 are connected to the two push rods 3-2 of the right linkage mechanism 3, forming two rows of clamping jaw groups. The support assembly has two groups, each including a pair of parallel horizontal rods 10 and multiple rotating shafts 11 rotatably arranged between the two horizontal rods 10. The number of rotating shafts 11 is the same as the total number of clamping plates 4-1 in the same row of clamping jaw groups.

[0035] Each clamp 4-1 includes a clamp body and a connecting piece rotatably mounted on the corresponding push rod 3-2. The top and middle parts of the clamp body are detachably fixed to the corresponding connecting piece and rotating shaft 11 by screws, respectively. It can be replaced according to different bottle types, making it more adaptable and convenient for production changes. The lower end of the clamp body is equipped with an anti-slip block adapted to the bottle mouth, which can protect the bottle mouth from wear and increase contact friction to improve the reliability of bottle gripping.

[0036] A pair of vertically downward-pointing rods 12 are fixedly mounted on the frame 1, and two sets of linkage mechanisms 3 are respectively connected to the two rods 12. Specifically, the linear drive mechanism 2 is a cylinder. The two L-shaped connecting rods 3-1 of each set of linkage mechanisms 3 are distributed on both sides of the rod 12. The middle part is rotatably mounted on the rod 12 through the same short pin shaft. The upper end is hinged to the piston rod of the same cylinder through the same short pin shaft, and the lower end is hinged to the two push rods 3-2 of the same set through the same long pin shaft. The lower end of the rod 12 can be provided with a cam hole adapted to the transmission trajectory of the entire linkage mechanism 3 or with a circular hole larger than the outer diameter of the short pin shaft to ensure that the short pin shaft has a certain amount of room for movement, thereby realizing the clearance rotation with the middle part of the L-shaped connecting rod 3-1, so that the various components of the entire transmission can operate normally without interference.

[0037] The working principle of this embodiment is as follows: The cylinders on both sides drive the two linkage mechanisms 3 to move. That is, the piston rod of the cylinder drives one end of the L-shaped connecting rod 3-1 to rotate around the middle, thereby driving the push rod 3-2 to swing through the other end. This in turn drives the upper ends of the left clamping plate 4-1 and the right clamping plate 4-1 to swing around the axis of rotation, so that the lower ends of the two clamping plates 4-1 can swing and open, thus completing the bottle clamping action.

[0038] (Example 2)

[0039] The structure of this embodiment is similar to that of embodiment 1, the difference being as follows: Figure 4 As shown, clamping piece 4-1 is fixedly mounted on push rod 3-2. Push rod 3-2 has a strip-shaped limiting groove 3-2-1 along its length. The supporting component is a limiting plate, which provides sufficient supporting force and maintains a high degree of balance. The limiting plate, as a connecting part 13, is vertically connected between the two push rods 3-2, with its two ends inserted into the corresponding limiting groove 3-2-1. When the limiting groove 3-2-1 is a blind groove, it forms a limiting connection with the limiting plate in a direction perpendicular to the limiting groove 3-2-1. When the limiting groove 3-2-1 is a through groove, both ends of the limiting plate penetrate the limiting groove 3-2-1 and are provided with limiting elements higher than the height of the limiting groove 3-2-1, similarly forming a limiting connection in a direction perpendicular to the limiting groove 3-2-1. Thus, the two push rods 3-2 are connected through the supporting component, so that the left and right symmetrical clamping pieces 4-1 form a gripper.

[0040] The working principle of this embodiment is as follows: the cylinders on both sides drive the two linkage mechanisms 3 to move. That is, the piston rod of the cylinder drives one end of the L-shaped connecting rod 3-1 to rotate around the middle, thereby causing the other end to swing. Due to the constraint of the support assembly, the two push rods 3-2 move towards each other, thereby driving the clamping piece 4-1 fixed on the corresponding push rod 3-2 to move in a translational opening and closing motion, thus completing the bottle clamping action. The structure is more concise.

[0041] (Example 3)

[0042] The structure of this embodiment is similar to that of embodiment 1, the difference being as follows: Figure 5 As shown, the support assembly consists of a pair of limiting rods, which, compared to the limiting plate, can reduce the contact area with the push rod 3-2, reduce friction, and extend the service life.

[0043] This utility model cleverly utilizes the linkage mechanism 3, with two cylinders driving the two linkage mechanisms 3 to move, thereby causing the left and right clamping plates 4-1 to move closer and further apart, completing the bottle clamping action. In the overall structural design, multiple clamping claws can clamp bottles with only one pair of cylinders, and the cylinders used for driving can be installed far away from the clamping plates 4-1. This allows the bottle to be released at a small angle by the lifting and lowering movement of the cylinder piston rod when the bottle is placed in the packaging, which is less likely to interfere with the inner wall of the box and cause damage to the box, thus making it more widely applicable.

[0044] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bottle clamping mechanism characterized by: The device includes a frame (1), a pair of bottle clamping assemblies, and a support assembly connected between the two bottle clamping assemblies. The bottle clamping assembly includes a linear drive mechanism (2) and a linkage mechanism (3) on the frame (1) and a clamping plate group (4) below the frame (1). The clamping plate group (4) includes multiple clamping plates (4-1) arranged horizontally along a straight line. The clamping plates (4-1) of the two clamping plate groups (4) are arranged opposite to each other at intervals and form multiple pairs of grippers through the support assembly. Each clamping plate group (4) is connected to the execution end of the corresponding linear drive mechanism (2) through the corresponding linkage mechanism (3) so that the grippers can perform opening and closing movements.

2. A bottle gripping mechanism according to claim 1, wherein: The linkage mechanism (3) includes a horizontally arranged push rod (3-2) and an L-shaped connecting rod (3-1) composed of a horizontal bar and a vertical bar. The linear drive mechanism (2) is a cylinder. The middle part of the L-shaped connecting rod (3-1) is rotatably connected to the frame (1), the upper end is movably connected to the piston rod of the cylinder, and the lower end is rotatably connected to the push rod (3-2). The clamp (4-1) is installed on the corresponding push rod (3-2).

3. A bottle gripping mechanism according to claim 2, wherein: The top of the clamp (4-1) is rotatably mounted on the push rod (3-2). The support assembly includes a pair of parallel crossbars (10) and a plurality of rotating shafts (11) rotatably disposed between the two crossbars (10). The number of rotating shafts (11) is the same as the total number of clamps (4-1). The middle part of the clamp (4-1) is fixedly connected to the corresponding rotating shaft (11).

4. A bottle gripping mechanism according to claim 3, wherein: The clamp (4-1) includes a clamp body and a connecting piece. The top and middle parts of the clamp body are detachably fixed to the connecting piece and the rotating shaft (11) by screws, respectively. The lower end of the clamp body is provided with an anti-slip block adapted to the bottle mouth.

5. The bottle gripping mechanism of claim 2, wherein: The clamp (4-1) is fixedly installed on the push rod (3-2). The support assembly includes a connecting part (13) that is slidably disposed between the two push rods (3-2) along the length direction of the push rod (3-2). The two push rods (3-2) are slidably connected along their length direction through the connecting part (13).

6. A bottle gripping mechanism according to claim 5, wherein: The connecting part (13) is a limiting plate or a pair of limiting rods arranged in parallel.

7. A bottle gripping mechanism according to claim 5, wherein: The push rod (3-2) has a strip-shaped limiting groove (3-2-1) along its length. The two ends of the connecting part (13) are inserted into the corresponding limiting groove (3-2-1) and are limited and connected in a direction that is horizontal and perpendicular to the limiting groove (3-2-1).

8. The bottle gripping mechanism of claim 5, wherein: The clip (4-1) includes a clip body and a connecting piece. The top of the clip body is detachably fixed to the connecting piece by screws, and the lower end of the clip body is provided with an anti-slip block adapted to the bottle mouth.

9. A bottle gripping mechanism according to any one of claims 1 to 8, wherein: It also includes a translation mechanism (5), the moving end of which is connected to a horizontally arranged first mounting plate (6), and a second mounting plate (7) is fixedly mounted on the top of the frame (1). A quick locking mechanism (8) is connected between the second mounting plate (7) and the first mounting plate (6).

10. A bottle gripping mechanism according to claim 9, wherein: A spring-damped shock absorber (9) is connected between the first mounting plate (6) and the moving end of the translation mechanism (5).

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