Active container clamping device and rotary conveying mechanism

Abstract

The utility model discloses an active type container clamping device and a rotary type conveying mechanism, the active type container clamping device comprises a pair of clamping pieces hinged to a base, the inner side of the outer end of a clamping side plate body of each clamping piece is provided with a clamping part, a driving side plate body of each clamping piece is provided with a driving groove, and the clamping part is provided with a clamping groove; a driving shaft is arranged on the guide block between the pair of driving side plate bodies and the base, the driving shaft is clamped in the pair of driving grooves, a guide block sliding groove is formed in the guide block, a base sliding rail is arranged on the base, and the guide block sliding groove is clamped in the base sliding rail; the elastic part between the base and the guide block enables the pair of clamping parts to always have a tendency of being kept in a clamping state; when the guide block moves along the base sliding rail in the direction close to the clamping parts, the clamping parts of the pair of clamping pieces are gradually opened outwards. The utility model has the advantages that the active container clamping device is long in service life and good in opening and closing smoothness and stability, and the rotary conveying mechanism is stable in operation and good in cleanliness.

Description

Technical Field

[0001] The utility model relates to the technical field of container rotary conveying mechanisms, in particular to a container clamping device for grabbing containers. Background Art

[0002] The container gripper is a key component in a rotary conveyor. Distributed evenly around the circumference of the rotary conveyor's turntable, these grippers are available in either active or passive configurations. Active grippers, as the name suggests, actively open and close during the turntable's rotation, thereby gripping and transferring containers.

[0003] The traditional active container clamping device mainly includes: a pair of clamps, a pair of clamps are hingedly connected to the base respectively, and the clamps on both sides of the hinged position of the clamp and the base are divided into a clamp clamping side and a clamp driving side, the outer end of each clamp clamping side is a clamp head, and the inner side of each clamp head is provided with a clamping part for clamping the container mouth, and a clamping opening for the container to enter or disengage is formed between the clamping parts of the pair of clamps, the pair of clamping sides are connected to the driving component, and a spring is provided between the pair of clamping sides, and the spring always has a tendency to drive the clamping parts of the pair of clamps to move closer to each other and be in a clamping state that can clamp the container; the driving component, under the drive of the driving mechanism on the frame, can drive the clamping parts of the pair of clamps away from each other to open the clamping opening, and when the driving component is disengaged from the driving mechanism, the clamping parts of the pair of clamps can always maintain a clamping state of moving closer to each other and clamping the container under the action of the spring.

[0004] The above-mentioned active container clamping device has the following defects: a complex structure, a large force exerted by the driving assembly on the clamping piece, which causes the clamping piece to wear significantly, thereby resulting in a short service life of the clamping device. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an active container clamping device and a rotary conveying mechanism, wherein the active container clamping device has a simple structure, reliable and stable clamping, and the rotary conveying mechanism has stable operation.

[0006] In order to solve the above problems, the technical solution adopted by the utility model is: an active container clamping device, including: a pair of clamping pieces, a pair of clamping pieces are respectively hingedly connected to the base, each clamping piece includes a clamping side plate and a driving side plate, the clamping side plate and the driving side plate are respectively located on both sides of the hinged position with the base, the inner side of the outer end of each clamping side plate is provided with a clamping portion for clamping the container mouth, each driving side plate is provided with a driving groove, a guide block is provided between the pair of driving side plates and the base, a driving shaft is provided on the guide block, the driving shaft is clamped in the driving groove on the pair of driving side plates, and the side walls on both sides of the guide block are provided with inwardly recessed guides. The guide block slide groove has an opening on the base, and the edges of the base on both sides of the opening form a base slide rail, and the guide block is clamped on the base slide rail through the guide block slide groove, and the guide block can move back and forth on the base slide rail; an elastic component is provided between the base and the guide block, and the elastic component always has a tendency to drive the guide block to move away from the clamping part, so that the clamping parts of a pair of clips always have a tendency to remain in a clamping state close to each other and able to clamp the container mouth; when the guide block overcomes the elastic force of the elastic component and moves along the base slide rail toward the clamping side plate, the driving shaft can drive the clamping parts of a pair of clips to gradually open outward through a pair of driving grooves.

[0007] Furthermore, the aforementioned active container clamping device, wherein the hinged connection structure between each clip and the base includes: a cylindrical nut, the cylindrical body of the cylindrical 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 provided between the cylindrical body of the cylindrical nut and the clip mounting hole, the mounting sleeve is located between the bearing and the base, a gasket and a wear-resistant washer are provided between the cap body of the cylindrical nut and the clip, and the stud is blocked on the base and fastened to the cylindrical nut thread.

[0008] Furthermore, in the aforementioned active container clamping device, the clamping center of the clamping portion of a pair of clips, the center of the distance between the two clips and the hinged position of the base, and the axis of the drive shaft are projected onto a straight line, which is the center line. The shapes of the pair of clips are mirror-symmetrically arranged relative to the center line, and the shapes of the drive grooves on the pair of clips are also mirror-symmetrically arranged relative to the center line.

[0009] Furthermore, in the aforementioned active container clamping device, each driving groove includes a driving section driving groove and a self-locking section driving groove, and the elastic component always has a tendency to drive the guide block to move away from the clamping portion until the driving shaft is blocked in the self-locking section driving groove, so that the clamping portions of a pair of clips always have a tendency to remain in a clamping state close to each other and able to clamp the container mouth; the driving groove meets the following conditions: when the clip is in the clamping state, each self-locking section driving groove is a straight groove arranged along the center line direction, and the driving section driving groove of each clip is an oblique straight groove inclined outward from the self-locking section driving groove, and the angle between the groove center line and the center line of each driving section driving groove is 5°~30°.

[0010] Furthermore, in the aforementioned active container clamping device, the elastic component is a compression spring, a boss is provided on the base between the notches, one end of the compression spring is sleeved on the boss, and the other end is pressed against the guide block.

[0011] Furthermore, in the aforementioned active container clamping device, a roller is also provided on the guide block, and the roller is used to cooperate with the cam on the frame. Under the guidance of the cam, the roller can drive the guide block to move toward the clamping part, thereby making the clamping parts of a pair of clips gradually move away from each other.

[0012] The rotary conveying mechanism comprises a rotary disk on which the above-mentioned active container clamping device is evenly distributed.

[0013] Furthermore, the aforementioned rotary conveying mechanism, wherein the mounting structure between each active container clamping device and the turntable includes: the hinged connection structure between each clip and the base includes: a cylindrical nut, the cylindrical body of the cylindrical nut is passed through the clip mounting hole, the mounting sleeve, and the base mounting hole on the clip, a bearing is also provided between the cylindrical body of the cylindrical nut and the clip mounting hole, a gasket and a wear-resistant washer are provided between the cap body of the cylindrical nut and the clip, one end of the stud is blocked on the base and fastened with the cylindrical nut thread, and the other end of the stud is fixed on the turntable, so that the active container clamping device is hoisted below the turntable.

[0014] The advantages of the present invention are as follows: the present invention provides an active container clamping device, which has a greatly simplified structure and reliable and stable clamping. The angle θ between the center line of the driving section of the driving groove and the center line of the driving groove is 5° to 30°. The small angle θ enables the driving shaft to easily drive a pair of clamps. On the one hand, this greatly reduces the wear between the driving shaft and the driving groove, thereby greatly extending the service life of the active container clamping device. On the other hand, it also greatly improves the smoothness and stability of the opening and closing of the pair of clamps. The rotary conveying mechanism using this active container clamping device can better, more smoothly and more reliably transport and transfer containers. Each container clamping device is hoisted by a stud, which greatly simplifies the installation method and greatly facilitates cleaning, thereby greatly improving the cleanliness of the entire rotary conveying mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an active container clamping device described in the utility model.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of an active container clamping device of the present invention in a clamping state.

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of an active container clamping device of the present invention when it is in a released clamping state.

[0018] Figure 4 It is a structural schematic diagram of the hinge connection structure between each clamping piece and the base in an active container clamping device described in the utility model.

[0019] Figure 5 It is a structural schematic diagram of the rotary conveying mechanism described in the utility model. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments.

[0021] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As shown, an active container clamping device includes: a pair of clamps 1, and the pair of clamps 1 are respectively hinged to the base 2. Each clamp 1 includes a clamping side plate 11 and a driving side plate 12, and the clamping side plate 11 and the driving side plate 12 are respectively located on both sides of the hinge position with the base. The inner side of the outer end of each clamping side plate 11 is provided with a clamping portion 111 for clamping the container mouth. A driving groove 3 is provided on each driving side plate 12, and a guide block 4 is provided between the driving side plate 12 and the base. A driving shaft 41 is provided on the guide block 4, and the driving shaft 41 is clamped in the driving groove 3 on the pair of driving side plates 12.

[0022] The side walls on both sides of the guide block 4 are provided with inwardly recessed guide block grooves 42, and a notch 21 is provided on the base 2. The edges of the base 2 on both sides of the notch 21 form a base slide rail 22. The guide block 4 is clamped on the base slide rail 22 through the guide block groove 42, and the guide block 4 can move back and forth on the base slide rail 22.

[0023] An elastic member is disposed between the base 2 and the guide block 4. This member tends to constantly drive the guide block 4 away from the clamping portion 111, thereby maintaining the clamping portions 111 of the pair of clips 1 in a position close together to grip the container mouth. When the guide block 4 overcomes the elastic force of the elastic member and moves along the base rail 22 toward the clamping portion 111, the drive shaft 41, via the pair of drive slots 3, gradually drives the clamping portions 111 of the pair of clips 1 outward, thereby enabling the container to be grasped and transferred.

[0024] In this embodiment, the elastic component is a compression spring 5 , and a boss 23 is provided on the base 2 between the notches 21 . One end of the compression spring 5 is sleeved and pressed against the boss 23 , and the other end is pressed against the guide block 4 .

[0025] In this embodiment, the clamping center 110 formed by the clamping portion 111 of the pair of clips 1, the center 120 of the distance between the two clips 1 and the hinged position of the base 2, and the axis of the drive shaft 41 are projected onto a straight line, which is the center line OO. The shapes of the pair of clips 1 are mirror-symmetrical relative to the center line OO, and the shapes of the drive slots 3 on the pair of clips 1 are also mirror-symmetrical relative to the center line OO.

[0026] In this embodiment, each driving groove 3 includes a driving section driving groove 31 and a self-locking section driving groove 32. The compression spring 5 always has an elastic tendency to drive the guide block 4 to move away from the clamping portion 111 until the driving shaft 41 is blocked in the self-locking section driving groove 32, so that the clamping portions 111 of a pair of clips 1 always have a tendency to remain in a clamping state close to each other and able to clamp the container mouth.

[0027] The drive groove 3 meets the following conditions: when the clip 1 is in the clamped state, the self-locking segment drive groove 32 is a straight groove extending along the centerline OO, the drive segment drive groove 31 is an oblique straight groove slanting outward from the self-locking segment drive groove 32, and the angle θ between the groove centerline 311 of the drive segment drive groove 31 and the centerline OO is between 5° and 30°. This small angle θ is used to reduce the pressure angle, allowing the drive shaft 41 to easily drive the pair of clips 1.

[0028] In this embodiment, the guide block 4 is further provided with a roller 43, which is used to cooperate with the cam 6 on the frame. Under the guidance of the cam 6, the roller 43 can drive the guide block 4 to move toward the clamping portion 111, thereby causing the clamping portions 111 of the pair of clips 1 to gradually move away from each other. Figure 5 As shown, the cam 6 is fixedly arranged on a turntable 15 for mounting an active container gripping device.

[0029] The rotary conveying mechanism includes: a rotary disk 15, on which the above-mentioned active container clamping devices are evenly distributed. In this embodiment, the mounting structure between each active container clamping device and the rotary disk 15 includes: Figure 4 As shown, the hinged connection structure between each clip 1 and the base 2 includes: each clip 1 and the base 2 includes: a cylindrical nut 7, the cylindrical body 71 of the cylindrical nut 7 passes through the clip mounting hole 101 on the clip 1, the mounting sleeve 8, and the base mounting hole 201 on the base 2, a bearing 9 is also provided between the cylindrical body 71 of the cylindrical nut 7 and the clip mounting hole 201, the mounting sleeve 8 is located between the bearing 9 and the base 2, a gasket 13 and a wear-resistant washer 14 are provided between the cap body 71 of the cylindrical nut 7 and the clip 1, and a stud 10 is blocked with the base 2 and threadedly fastened with the cylindrical nut 7. In this embodiment, the other end of the stud 10 is fixed on the turntable 15, so that the active container clamping device is hoisted below the turntable 15, as shown in FIG. Figure 5 shown.

[0030] As can be seen from the above, the utility model provides an active container clamping device, which has a greatly simplified structure and reliable and stable clamping. The angle θ between the center line 311 of the driving section driving groove 31 of the driving groove and the center line OO is 5° to 30°. θ adopts a small angle, which enables the driving shaft 41 to easily drive a pair of clamps 1. On the one hand, this greatly reduces the wear between the driving shaft 41 and the driving groove 3, thereby greatly extending the service life of the active container clamping device. On the other hand, it also greatly improves the smoothness and stability of the opening and closing of the pair of clamps 1. The rotary conveying mechanism using this active container clamping device can better, more smoothly and more reliably transport and transfer containers. Each container clamping device is hoisted by a stud 10, which greatly simplifies the installation method and greatly facilitates cleaning, thereby greatly improving the cleanliness of the entire rotary conveying mechanism.

Claims

1. An active container clamping device, comprising: A pair of clips, a pair of clips are hingedly connected to the base, each clip includes a clamping side plate and a driving side plate, the clamping side plate and the driving side plate are respectively located on both sides of the hinged position with the base, and the inner side of the outer end of each clamping side plate is provided with a clamping portion for clamping the container mouth, which is characterized in that: a driving groove is provided on each driving side plate, a guide block is provided between the pair of driving side plates and the base, a driving shaft is provided on the guide block, the driving shaft is clamped in the driving groove on the pair of driving side plates, and a guide block slide groove concave inward is provided on the side walls on both sides of the guide block, and a notch is provided on the base. The edges of the base on both sides of the notch form base slide rails, and the guide blocks are clamped on the base slide rails through the guide block slide grooves, and the guide blocks can move back and forth on the base slide rails; an elastic component is provided between the base and the guide block, and the elastic component always has a tendency to drive the guide block to move away from the clamping part, so that the clamping parts of a pair of clips always have a tendency to remain in a clamping state close to each other and able to clamp the container mouth; when the guide block overcomes the elastic force of the elastic component and moves along the base slide rail toward the clamping part, the drive shaft can drive the clamping parts of the pair of clips to gradually open outward through a pair of driving grooves.

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

3. An active container clamping device according to claim 1 or 2, characterized in that: The clamping center of the clamping portion of a pair of clips, the center of the distance between the two clips and the hinged position of the base, and the axis of the drive shaft are projected onto a straight line, which is the center line. The shape of the pair of clips is mirror-symmetrical relative to the center line, and the shape of the drive grooves on the pair of clips is also mirror-symmetrical relative to the center line.

4. The active container clamping device according to claim 3, characterized in that: Each driving groove includes a driving section driving groove and a self-locking section driving groove. The elastic component always has the tendency to drive the guide block to move away from the clamping portion until the driving shaft is blocked in the self-locking section driving groove, so that the clamping portions of a pair of clips always have the tendency to remain in a clamping state close to each other and able to clamp the container mouth; the driving groove meets the following conditions: when the clip is in the clamping state, each self-locking section driving groove is a straight groove arranged along the center line direction, and the driving section driving groove of each clip is an oblique straight groove inclined outward from the self-locking section driving groove, and the angle between the groove center line and the center line of each driving section driving groove is 5° to 30°.

5. The active container clamping device according to claim 1, characterized in that: The elastic component is a compression spring. A boss is provided on the base between the notches. One end of the compression spring is sleeved on the boss, and the other end is pressed against the guide block.

6. An active container clamping device according to claim 1 or 2, characterized in that: The guide block is also provided with a roller, which is used to cooperate with the cam on the frame. Under the guidance of the cam, the roller can drive the guide block to move toward the clamping part, so that the clamping parts of a pair of clips gradually move away from each other.

7. Rotary conveying mechanism, including: A turntable, characterized in that the active container clamping device according to any one of claims 1 to 6 is evenly distributed on the turntable.

8. The rotary conveying mechanism according to claim 7, characterized in that: The mounting structure between each active container clamping device and the turntable includes: the hinged connection structure between each clip and the base includes: a cylindrical nut, the cylindrical body of the cylindrical nut is passed through the clip mounting hole, the mounting sleeve, and the base mounting hole on the base, a bearing is also provided between the cylindrical body of the cylindrical nut and the clip mounting hole, a gasket and a wear-resistant washer are provided between the cap body of the cylindrical nut and the clip, one end of the stud is stuck on the base and fastened with the cylindrical nut thread, and the other end of the stud is fixed on the turntable, so that the active container clamping device is hoisted below the turntable.

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