Compatible passive container clamping device

Abstract

The invention discloses a compatible passive container clamping device which comprises a pair of clamping pieces hinged to a base, each clamping piece comprises a clamping side plate body and a driving side plate body, the inner side of each clamping side plate body is provided with a clamping piece groove, the inner side of the clamping piece at the outer end of each clamping piece groove is provided with a clamping piece clamping part, and the clamping piece clamping part is provided with a clamping groove; a first elastic component is arranged between the pair of driving side plate bodies, a clamping piece limiting mechanism is arranged on the base on the outer side of each driving side plate body, a sliding block is further movably arranged on the base between the pair of clamping pieces and comprises a sliding block body, a sliding block clamping part is arranged at the head of the sliding block body and located on the side close to the clamping piece clamping part, and a clamping piece limiting mechanism is arranged on the sliding block clamping part. The tail portion of the sliding block body is connected with a sliding block driving rod, and a second elastic component is arranged between the sliding block driving rod and the base. The container clamping device can clamp containers with two caliber models, and the positions of the clamping centers are the same. The device has the advantages of being simple in structure and good in compatibility.

Description

Technical Field

[0001] The invention relates to the technical field of container conveying equipment, and in particular to a container clamping device for grabbing containers. Background Art

[0002] The container clamping device includes two types: active and passive. The passive container clamping device has a structure including: a pair of clamping pieces respectively hinged to the base, each clamping piece includes a clamping side plate body and a driving side plate body, the clamping side plate body and the driving side plate body are respectively located on both sides of the hinged position with the base, and a clamping part for clamping the container mouth is arranged on the inner side of the outer end of each clamping side plate body, and a spring is arranged between the pair of clamping side plates, and under the action of the spring, the clamping parts of the pair of clamping pieces always have a tendency to move closer to each other to clamp the container.

[0003] The market demand for liquid packaging has led to increasing product differentiation, and different types of containers have different calibers. When switching between different types of products, the entire blowing, filling and capping equipment needs to replace all the container clamping devices used to clamp the container mouth, and it is also necessary to ensure that the clamping center of the container clamping device remains unchanged after the replacement, so as to ensure that the container handover position remains unchanged. The entire blowing, filling and capping equipment has many container clamping devices and a complex structure, which makes disassembly, installation, and debugging time-consuming and labor-intensive, resulting in long downtime, affecting production, being very inconvenient, and increasing the filling production cost. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a compatible passive container clamping device, which is suitable for clamping containers of different calibers.

[0005] To solve the above problems, the technical solution adopted by the present invention is: a compatible passive container clamping device, including: a pair of clamps respectively hingedly connected to the base, each clamp including a clamping side plate and a driving side plate, the clamping side plate and the driving side plate of each clamp are respectively located on both sides of the hinged position with the base, a clamping groove is provided on the inner side of each clamping side plate, a clamp clamping portion is provided on the inner side of the clamp at the outer end position of the clamp groove, a first elastic component is provided between the pair of driving side plates, a clamp limiting mechanism is provided on the base outside each driving side plate, a slider is also movably provided on the base between the pair of clamps, the slider includes a slider body, a slider clamping portion is provided at the head of the slider body, the slider clamping portion is located on a side close to the clamping portion, and a slider driving rod is connected to the tail of the slider body.

[0006] It also includes a slider limiting mechanism, which enables the slider to have a maximum distance position for moving toward the clip clamping portion and a maximum distance position for moving away from the clip clamping portion, and the slider driving rod can drive the entire slider to translate back and forth between the maximum distance position for moving toward the clip clamping portion and the maximum distance position for moving away from the clip clamping portion, and a second elastic component is arranged between the slider driving rod and the base.

[0007] In the initial state, a pair of driving side plates are opened outward under the action of the first elastic component and are respectively blocked by the clip limiting mechanisms, which makes the pair of clip clamping parts approach each other to the position with the minimum spacing, and the slider is limited by the slider limiting mechanism at the maximum distance position moving in the direction close to the clip clamping part under the action of the second elastic component.

[0008] The mouth of the first caliber container can squeeze the pair of clip clamping parts in the initial state, so that they are opened outward and the pair of driving side plates are brought close to each other and respectively disengaged from the clip limiting mechanisms, thereby entering the inner side of the pair of clip clamping parts. When the maximum width position of the mouth of the first caliber container enters the inner side of the pair of clip clamping parts, the driving side plate will open outward and reset. At this time, the elastic force of the first elastic component can prompt the pair of clip clamping parts to drive the mouth of the first caliber container to move further inward and abut against the slider clamping part, and push the slider to move in the direction away from the pair of clip clamping parts, until the driving side plate moves outward to be blocked by the clip limiting mechanism and completely reset. At this time, the mouth of the first caliber container moves into place and is clamped by the pair of clip clamping parts and the slider clamping part.

[0009] The mouth of the second caliber container can squeeze the pair of clip clamping parts in the initial state, so that they are opened outward and the pair of driving side plates are brought close to each other and respectively disengaged from the clip limiting mechanisms, thereby entering the inner side of the pair of clip clamping parts. When the maximum width position of the mouth of the second caliber container enters the inner side of the pair of clip clamping parts, the driving side plate will open outward and reset. At this time, the elastic force of the first elastic component can prompt the pair of clip clamping parts to drive the mouth of the second caliber container to move further inward and abut against the slider clamping part, and push the slider to move in the direction away from the pair of clip clamping parts, until the slider moves to the maximum distance position moving away from the clip clamping part. At this time, the mouth of the second caliber container moves into place and is clamped by the pair of clip clamping parts and the slider clamping part.

[0010] The mouth diameter of the first caliber container is smaller than the mouth diameter of the second caliber container; the mouth of the first caliber container is in a clamping state and the mouth of the second caliber container is in a clamping state, and the positions of the clamping centers of a pair of clip clamping parts and the slider clamping parts in these two clamping states are the same.

[0011] Furthermore, in the aforementioned compatible passive container clamping device, the clip limiting mechanism on the base outside each driving side plate is a limiting column fixedly arranged on the base.

[0012] Furthermore, in the aforementioned compatible passive container clamping device, the hinged connection structure between each clip and the base includes: a cylindrical nut, the columnar body of the columnar nut is passed through the clip mounting hole on the clip, the mounting sleeve, and the base mounting hole on the base, a bearing is also arranged between the columnar body of the columnar nut and the clip mounting hole, the mounting sleeve is located between the bearing and the base, a gasket and a wear-resistant gasket are arranged between the cap body of the columnar nut and the clip, and the stud is blocked on the base and fastened with the thread of the columnar nut.

[0013] Furthermore, in the aforementioned compatible passive container clamping device, the structure of the slider limiting mechanism includes: a slider slot is provided on the top of the slider body, and the two end surfaces of the slider slot respectively form a first blocking surface and a second blocking surface, and a gasket and a wear-resistant gasket are located in the slider slot; in the initial state, under the action of the second elastic component, the second blocking surface of the slider slot is blocked by the gasket and the wear-resistant gasket, so that the slider is located at the maximum distance position moving in the direction close to the clamping part of the clip; in the mouth clamping state of the second caliber container, the first blocking surface of the slider slot is blocked by the gasket and the wear-resistant gasket, so that the slider is located at the maximum distance position moving in the direction away from the clamping part of the clip.

[0014] Furthermore, in the aforementioned compatible passive container clamping device, a guide groove is provided on the base, and the slider driving rod is located in the guide groove.

[0015] Furthermore, in the aforementioned compatible passive container clamping device, the first elastic component is a first compression spring, and a first spring mounting seat is provided on the inner side of the outer end of a pair of driving side plates, and both ends of the first compression spring are mounted on the first spring mounting seats of a pair of driving side plates.

[0016] Furthermore, in the aforementioned compatible passive container clamping device, the second elastic component is a second compression spring, a second spring mounting seat is provided on the slider driving rod, and both ends of the second compression spring are respectively blocked on the second spring mounting seat and a base mounting block fixedly provided at the end of the base.

[0017] Furthermore, in the aforementioned compatible passive container clamping device, the outer ends of the pair of clamping side plates are in a trumpet shape for guiding the container mouth toward the pair of clip clamping parts.

[0018] The advantages of the present invention are: its structure is greatly simplified, and it is compatible with containers of two caliber models, and the clamping center positions of the two caliber models of containers are the same, so the adaptability of the container clamping device is greatly improved, and the frequent replacement of the clamping device can be effectively avoided, thereby effectively saving the production cost of filling production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the compatible passive container clamping device in the initial state of the present invention.

[0020] Figure 2 yes Figure 1 Schematic diagram shown from top view.

[0021] Figure 3 It is a structural schematic diagram of the state in which the compatible passive container clamping device of the present invention clamps a container of a first caliber.

[0022] Figure 4 It is a structural schematic diagram of the state of the compatible passive container clamping device of the present invention clamping a container of a second caliber.

[0023] Figure 5 It is a structural schematic diagram of the hinged connection between the clamping piece and the base in the compatible passive container clamping device described in the present invention. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a compatible passive container clamping device comprises: a pair of clamps 1 respectively hinged to a base 2, each clamp 1 comprises a clamping side plate 11 and a driving side plate 12, and the clamping side plate 11 and the driving side plate 12 of each clamp 1 are respectively located on both sides of the hinged position with the base 2.

[0026] Specifically, the hinge connection structure of each clip 1 and the base 2 includes: a cylindrical nut 101, a cylindrical body 102 of the cylindrical nut 101 passing through a clip mounting hole 106 on the clip 1, a mounting sleeve 104, and a base mounting hole 201 on the base 2, a bearing 105 is further provided between the cylindrical body 102 of the cylindrical nut 101 and the clip mounting hole 106, and the mounting sleeve 104 is located between the bearing 105 and the base 2. A gasket 107 and a wear-resistant washer 108 are provided between the cap body 103 of the cylindrical nut 101 and the clip 1, and a stud 109 is blocked on the base 2 and threadedly fastened with the cylindrical body 102 of the cylindrical nut 101.

[0027] Each clamping side plate 11 is provided with a clamping groove 111 for accommodating the container mouth, and a clamping portion 112 is provided on the inner side of the clamping plate 1 at the outer end of the clamping groove 111. In this embodiment, the outer end portions 113 of the pair of clamping side plates 11 are in a trumpet shape for guiding the container mouth toward the pair of clamping portions 112.

[0028] A first elastic component is disposed between the pair of driving side plates 12. In this embodiment, the first elastic component is a first compression spring 3. A first spring mounting seat 31 is disposed on the inner side of the outer end of the pair of driving side plates 12. Both ends of the first compression spring 3 are respectively mounted on the first spring mounting seats 31 of the pair of driving side plates 12. A clip limiting mechanism is disposed on the base 2 outside each driving side plate 12. In this embodiment, the clip limiting mechanism on the base 2 outside each driving side plate 12 is a limiting column 21 fixedly disposed on the base 2.

[0029] A slider 4 is movably provided on the base 2 between a pair of clips 1. The slider 4 includes a slider body 41. A slider clamping portion 42 is provided at the head of the slider body 41. The slider clamping portion 42 is located on a side close to the clip clamping portion 112. A slider driving rod 43 is connected to the tail of the slider body 41.

[0030] The slider limit mechanism is also included, and the slider limit mechanism enables the slider 4 to have a maximum distance position moving toward the clip clamping portion 112 and a maximum distance position moving away from the clip clamping portion, and the slider drive rod 43 can drive the entire slider 4 to translate back and forth between the maximum distance position moving toward the clip clamping portion 112 and the maximum distance position moving away from the clip clamping portion 112. In this embodiment, a guide groove 23 is provided on the base 2, and the slider drive rod 43 is located in the guide groove 23.

[0031] A second elastic component is provided between the slider driving rod 43 and the base 2. In this embodiment, the second elastic component is a second compression spring 5, and a second spring mounting seat 431 is provided on the slider driving rod 43. Both ends of the second compression spring 5 are respectively blocked on the second spring mounting seat 431 and the base mounting block 22 fixedly provided at the end of the base 2.

[0032] The structure of the slider limiting mechanism includes: a slider slot 411 is provided on the top of the slider body 41, and the two end surfaces of the slider slot 411 respectively form a first blocking surface 412 and a second blocking surface 413, and the gasket 107 and the wear-resistant washer 108 are located in the slider slot 411. Under the action of the second elastic component, the second blocking surface 413 of the slider slot 411 is blocked by the gasket 107 and the wear-resistant washer 108, and the slider 4 is at the maximum distance position moving toward the clamping portion 112; under the action of external force, the first blocking surface 412 of the slider slot 411 is blocked by the gasket 107 and the wear-resistant washer 108, and the slider 4 is at the maximum distance position moving away from the clamping portion 112.

[0033] In the initial state, a pair of driving side plates 12 are opened outward under the action of the first compression spring 3 and are respectively blocked by the clip limiting mechanism, that is, the limiting column 21, so that a pair of clip clamping parts 112 are close to each other to the position with the minimum spacing. The slider 4 is limited by the slider limiting mechanism at the closest position relative to the clip clamping part 112 under the action of the second compression spring 5, that is, the second blocking surface 413 of the slider slot 411 is blocked by the gasket 107 and the wear-resistant washer 108. In this state, the slider 4 is located at the maximum distance position moving in the direction close to the clip clamping part 112.

[0034] like Figure 3 As shown, the mouth of the first caliber container 6 can squeeze the pair of clip clamping parts 112 in the initial state, so that it opens outward and makes the pair of driving side plates 12 approach each other and respectively break away from the limiting columns 21, thereby entering the inner side of the pair of clip clamping parts 112. When the maximum width position of the mouth of the first caliber container 6 enters the inner side of the pair of clip clamping parts 112, the driving side plate 12 will open outward and reset. At this time, the elastic force of the first compression spring 3 can prompt the pair of clip clamping parts 112 to drive the mouth of the first caliber container 6 to move further inward and abut against the slider clamping part 42, and push the slider 4 to move away from the pair of clip clamping parts 112, until the driving side plate 12 moves outward to be blocked by the limiting column 21 and completely reset. At this time, the mouth of the first caliber container 6 moves into place and is clamped by the pair of clip clamping parts 112 and the slider clamping part 42.

[0035] like Figure 4As shown, the mouth of the second caliber container 7 can squeeze the pair of clip clamping parts 112 in the initial state, so that they are opened outward and the pair of driving side plates 12 are brought close to each other and respectively separated from the clip limiting columns 21, thereby entering the inner side of the pair of clip clamping parts 112. When the maximum width position of the mouth of the second caliber container 7 enters the inner side of the pair of clip clamping parts 112, the driving side plate 12 will open outward and reset. At this time, the elastic force of the first compression spring 3 can prompt the pair of clip clamping parts 112 to drive the mouth of the second caliber container 7 to move further inward and abut against the slider clamping part 42, and push the slider 4 to move in the direction away from the pair of clip clamping parts 112, until the slider 4 moves to the maximum distance position moving away from the clip clamping part 112, that is, the position where the first blocking surface 412 of the slider slot 411 is blocked by the gasket 107 and the wear-resistant washer 108. At this time, the mouth of the second-caliber container 7 moves to the right position and is clamped by a pair of clip clamping parts 112 and a slider clamping part 42 .

[0036] The diameter of the mouth of the first caliber container 6 is smaller than the diameter of the mouth of the second caliber container 7. The mouth of the first caliber container 6 is in a clamped state, and the mouth of the second caliber container 7 is in a clamped state, and the position of the clamping center O of the pair of clip clamping parts 112 and the slider clamping part 42 in the two clamping states is the same.

[0037] It can be seen that the structure of the compatible passive container clamping device is greatly simplified, and it can be compatible with containers of two caliber models, and the clamping center positions of the two caliber models of containers are the same. Therefore, the adaptability of the container clamping device is greatly improved, and it can effectively avoid the frequent replacement of the clamping device, thereby effectively saving the production cost of filling production.

Claims

1. A compatible passive container gripping device, comprising: A pair of clips are respectively hingedly connected to the base, each clip comprises a clamping side plate body and a driving side plate body, the clamping side plate body and the driving side plate body of each clip are respectively located on both sides of the hinged position with the base, a clip groove is arranged on the inner side of each clamping side plate body, a clip clamping part is arranged on the inner side of the clip at the outer end position of the clip groove, a first elastic component is arranged between the pair of driving side plates, and a clip limiting mechanism is arranged on the base outside each driving side plate body, characterized in that: a slider is also movably arranged on the base between the pair of clips, the slider comprises a slider body, a slider clamping part is arranged on the head of the slider body, the slider clamping part is located on a side close to the clip clamping part, and a slider driving rod is connected to the tail of the slider body, The slider also includes a slider limiting mechanism, which enables the slider to have a maximum distance position moving toward the clip clamping part and a maximum distance position moving away from the clip clamping part, and the slider driving rod can drive the entire slider to move back and forth between the maximum distance position moving toward the clip clamping part and the maximum distance position moving away from the clip clamping part, and a second elastic component is arranged between the slider driving rod and the base. In the initial state, the pair of driving side plates are opened outwards under the action of the first elastic component and are respectively blocked by the clip limiting mechanisms, so that the pair of clip clamping parts are brought close to each other to the position with the minimum spacing, and the slider is limited by the slider limiting mechanism at the maximum distance position moving toward the clip clamping part under the action of the second elastic component; The mouth of the first caliber container can squeeze the pair of clip clamping parts in the initial state, so that they are opened outward and the pair of driving side plates are brought close to each other and respectively separated from the clip limiting mechanisms, thereby entering the inner side of the pair of clip clamping parts. When the maximum width position of the mouth of the first caliber container enters the inner side of the pair of clip clamping parts, the driving side plate will open outward and reset. At this time, the elastic force of the first elastic component can cause the pair of clip clamping parts to drive the mouth of the first caliber container to move further inward and abut against the slider clamping part, and push the slider to move in the direction away from the pair of clip clamping parts, until the driving side plate moves outward to be blocked by the clip limiting mechanism and completely reset. At this time, the mouth of the first caliber container moves into place and is clamped by the pair of clip clamping parts and the slider clamping part; The mouth of the second caliber container can squeeze the pair of clip clamping parts in the initial state, so that they are opened outward and the pair of driving side plates are brought close to each other and respectively separated from the clip limiting mechanisms, thereby entering the inner side of the pair of clip clamping parts. When the maximum width position of the mouth of the second caliber container enters the inner side of the pair of clip clamping parts, the driving side plate will open outward and reset. At this time, the elastic force of the first elastic component can cause the pair of clip clamping parts to drive the mouth of the second caliber container to move further inward and abut against the slider clamping part, and push the slider to move in the direction away from the pair of clip clamping parts, until the slider moves to the maximum distance position moving in the direction away from the clip clamping part. At this time, the mouth of the second caliber container moves into place and is clamped by the pair of clip clamping parts and the slider clamping part; The mouth diameter of the first caliber container is smaller than the mouth diameter of the second caliber container; the mouth of the first caliber container is in a clamping state and the mouth of the second caliber container is in a clamping state, and the positions of the clamping centers of a pair of clip clamping parts and the slider clamping parts in these two clamping states are the same.

2. The compatible passive container clamping device according to claim 1 is characterized in that: The clip limiting mechanism on the base outside each driving side plate body is a limiting column fixedly arranged on the base.

3. The compatible passive container clamping device according to claim 1 or 2, characterized in that: The hinged connection structure of each clip and the base includes: a cylindrical nut, the columnar body of the columnar nut is passed through the clip mounting hole on the clip, the mounting sleeve, and the base mounting hole on the base, a bearing is also arranged between the columnar body of the columnar nut and the clip mounting hole, the mounting sleeve is located between the bearing and the base, a gasket and a wear-resistant gasket are arranged between the cap body of the columnar nut and the clip, and the stud is blocked on the base and fastened with the thread of the columnar nut.

4. The compatible passive container clamping device according to claim 3 is characterized in that: The structure of the slider limiting mechanism includes: a slider slot is arranged on the top of the slider body, and the two end surfaces of the slider slot respectively form a first blocking surface and a second blocking surface, and a gasket and a wear-resistant gasket are located in the slider slot; in the initial state, under the action of the second elastic component, the second blocking surface of the slider slot is blocked by the gasket and the wear-resistant gasket, so that the slider is located at the maximum distance position moving in the direction close to the clamping part of the clip; in the mouth clamping state of the second caliber container, the first blocking surface of the slider slot is blocked by the gasket and the wear-resistant gasket, so that the slider is located at the maximum distance position moving in the direction away from the clamping part of the clip.

5. The compatible passive container clamping device according to claim 1 or 2, characterized in that: A guide groove is arranged on the base, and the slider driving rod is located in the guide groove.

6. The compatible passive container clamping device according to claim 1 or 2, characterized in that: The first elastic component is a first compression spring. First spring mounting seats are provided on the inner sides of the outer ends of a pair of driving side plates. Both ends of the first compression spring are sleeved on the first spring mounting seats of the pair of driving side plates.

7. The compatible passive container clamping device according to claim 1 or 2, characterized in that: The second elastic component is a second compression spring. A second spring mounting seat is arranged on the slider driving rod. Both ends of the second compression spring are respectively blocked on the second spring mounting seat and a base mounting block fixedly arranged at the end of the base.

8. The compatible passive container clamping device according to claim 1 or 2, characterized in that: The outer ends of the pair of clamping side plates are in a trumpet shape for guiding the container mouth toward the pair of clip clamping parts.

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