A double-shaft equidistant quick change mechanism for bottle separating chain track and bottle separating plate

Abstract

The present application belongs to the field of beverage packaging equipment, and particularly relates to a double-shaft equidistant quick change mechanism of a bottle separating chain track and a bottle separating plate, comprising a first synchronous driving unit, a second synchronous driving unit and a guide mechanism, wherein the chain track fixing seat and the bottle separating plate fixing seat are respectively guided and matched with the guide mechanism, the chain track fixing seat is drivingly matched with the first synchronous driving unit, the bottle separating plate fixing seat is drivingly matched with the second synchronous driving unit, the first synchronous driving unit drives the chain track fixing seat to move along the guide mechanism, and the distance between the chain track fixing seats is synchronously increased or reduced, the second synchronous driving unit drives the bottle separating plate fixing seat to move along the guide mechanism, and the distance between the bottle separating plate fixing seats is synchronously increased or reduced, without the need of dismounting and reassembling, the change time of the bottle separating plate fixing seat and the chain track fixing seat for different bottle diameters is greatly shortened, and the production efficiency is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of beverage packaging equipment, specifically relating to a bottle-separating chain and a bottle-separating plate dual-axis equal-spacing rapid change mechanism. Background Technology

[0002] In automated bottled beverage packaging production lines, bottle conveying and sorting are crucial steps in the packing process. Currently, the bottle sorting plate fixing seats and chain conveyor fixing seats are mostly welded or bolted, with the spacing being non-adjustable or only adjustable through disassembly and reassembly. When conveying bottles of different diameters, the fixing spacing of the bottle sorting plates cannot match the bottle diameter, easily leading to problems such as bottle shaking, tilting, bottle jamming, or excessive distance between bottles, affecting conveying stability and packaging qualification rate.

[0003] To accommodate various bottle sizes, companies often need to equip themselves with multiple sets of bottle dividers and fixing seats with different spacings. When replacing them, the machine needs to be stopped for disassembly, repositioning, and calibration. The spacing between the bottle divider fixing seats needs to be adjusted in sequence, and the chain conveyor fixing seat needs to be located in the middle of two adjacent bottle divider fixing seats. This results in drawbacks such as long changeover time, high labor intensity, high spare parts cost, and poor production line versatility.

[0004] Therefore, designing a mechanism that can quickly, synchronously, and at equal intervals adjust the position of the bottle separating plate and the chain conveyor to adapt to the stable conveying of bottles of different diameters is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] To address the problems existing in the prior art, this invention provides a rapid changeover mechanism with dual-axis equal spacing for the bottle-separating chain and bottle-separating plates. This mechanism can automatically and synchronously adjust the distance between the bottle-separating plate fixing seats and the distance between the chain fixing seats without disassembly and reassembly, significantly shortening the changeover time for bottle-separating plate fixing seats and chain fixing seats for different bottle diameters, thus greatly improving production efficiency.

[0006] The specific technical solution adopted in this invention is as follows:

[0007] A dual-axis, equally spaced, rapid-change mechanism for bottle-separating conveyors and plates is disclosed. This mechanism adjusts the spacing between conveyor fixing seats and between bottle-separating plate fixing seats. The conveyor fixing seats are located at the midpoint between the bottle-separating plate fixing seats. The rapid-change mechanism includes a first synchronous drive unit, a second synchronous drive unit, and a guide mechanism. The conveyor fixing seats and bottle-separating plate fixing seats are guided by the guide mechanism. The conveyor fixing seats are driven by the first synchronous drive unit, and the bottle-separating plate fixing seats are driven by the second synchronous drive unit. The first synchronous drive unit drives the conveyor fixing seats to move along the guide mechanism, and the spacing between the conveyor fixing seats increases or decreases synchronously. The second synchronous drive unit drives the bottle-separating plate fixing seats to move along the guide mechanism, and the spacing between the bottle-separating plate fixing seats increases or decreases synchronously.

[0008] The first synchronous drive unit includes a first shaft, and the second synchronous drive unit includes a second shaft. The axial directions of both the first and second shafts are parallel to the guiding direction of the guiding mechanism. The first shaft has a set of first variable-pitch spiral grooves, and the generatrix of the first shaft intersects with each of the first variable-pitch spiral grooves to form a set of first intersection points arranged at equal intervals. The second shaft has a set of second variable-pitch spiral grooves, and the generatrix of the second shaft intersects with each of the second variable-pitch spiral grooves to form a set of second intersection points arranged at equal intervals. The chain track fixing seat slides with the first variable-pitch spiral grooves via a guide block, and the bottle separating plate fixing seat slides with the second variable-pitch spiral grooves via a guide block. The first shaft rotates around its own axis to drive the chain track fixing seat to move along the guiding mechanism, and the second shaft rotates around its own axis to drive the bottle separating plate fixing seat to move along the guiding mechanism.

[0009] The quick change mechanism also includes a reducer connected to a drive motor. The output shaft of the reducer is connected to a first shaft or a second shaft. The first shaft and the second shaft are driven by a set of gears. The drive motor drives the first shaft and the second shaft to rotate around their own axes. The spacing between the chain track fixing seats and the spacing between the bottle separating plate fixing seats increase or decrease synchronously. The unfolded projections of the first variable pitch spiral groove and the second variable pitch spiral groove on the plane where the guide mechanism is located form an alternating fit. The second variable pitch spiral groove is located between two adjacent first variable pitch spiral grooves, and the spacing between the second variable pitch spiral groove and the two adjacent first variable pitch spiral grooves is equal.

[0010] The guiding mechanism includes a set of slide rails, and the chain track fixing seat and the bottle dividing plate fixing seat respectively form a guiding cooperation with the slide rails by means of a slider.

[0011] The bottle-separating plate fixing seat is equipped with a bottle-separating plate by means of a first lifting unit. The bottle-separating plate is provided with a pair of clamping plates and a return spring. The clamping plates are hinged to the bottle-separating plate. The return spring is located between the two clamping plates and is connected to the two clamping plates respectively. The bottle-separating plate fixing seat is also provided with a second lifting unit. The second lifting unit drives a push block to move in and out between the two clamping plates. The clamping plates on adjacent sides of adjacent bottle-separating plates swing towards each other by means of the push block and form a support structure at the neck of the bottle. The first lifting unit and the second lifting unit are respectively provided on the front and rear sides of the bottle-separating plate fixing seat.

[0012] The push block has a tapered cross-section that is wider at the top and narrower at the bottom. The width of the lower end of the push block is less than the distance between the clips on the bottle separating plate. The bottle separating plate is provided with a sliding groove. A push-pull rod is provided below the push block. The push-pull rod is driven and cooperates with the second lifting unit through the sliding groove.

[0013] The first lifting unit includes a first driving gear and a first rack that mesh with each other. The first driving gear is rotatably mounted on the bottle separating plate fixing seat. The second lifting unit includes a second driving gear and a second rack that mesh with each other. The second driving gear is rotatably mounted on the bottle separating plate fixing seat. The bottle separating plate fixing seat is provided with guide grooves for the first rack and the second rack respectively. The first rack is fixedly connected to the bottle separating plate, and the second rack is fixedly connected to the push block.

[0014] The first drive gear is mounted on the first spline shaft and has the freedom to move axially along the first spline shaft. The second drive gear is mounted on the second spline shaft and has the freedom to move axially along the second spline shaft. The axial directions of the first and second spline shafts are parallel to the guiding direction of the guiding mechanism, and the positions of the first and second spline shafts relative to the guiding mechanism are fixed. The rotation of the first spline shaft drives the first drive gear to rotate, and the rotation of the second spline shaft drives the second drive gear to rotate.

[0015] The beneficial effects of this invention are:

[0016] In this invention, the first shaft and the chain track fixing seat form a cam mechanism, and the second shaft and the bottle separating plate fixing seat form a cam mechanism. The first shaft rotates around its own axis, driving the chain track fixing seat to move along the guide mechanism, and the second shaft rotates around its own axis, driving the bottle separating plate fixing seat to move along the guide mechanism. The rotation of the first shaft and the second shaft around their own axes, along with the first and second variable-pitch spiral grooves, allow for continuous and precise adjustment of the spacing between the chain track fixing seats and between the bottle separating plate fixing seats, respectively. This adapts to the need for subtle spacing changes in bottles of different diameters, meeting the requirements for sorting and stable conveying of bottles of different diameters. It eliminates the need to disassemble and reassemble the chain track fixing seats and the bottle separating plate fixing seats, or to replace their positions individually, significantly reducing the time required for spacing adjustment and making operation convenient.

[0017] The first and second axes are driven by a set of gears, eliminating the need for separate operation. Driven by a single drive motor, the spacing between the chain track fixing seats and the spacing between the bottle dividing plate fixing seats automatically and synchronously increases or decreases. Furthermore, the chain track fixing seats are always located at the midpoint between two adjacent bottle dividing plate fixing seats. This automated spacing adjustment significantly shortens the changeover time for different bottle diameters, reduces manual labor intensity, and minimizes human error. Attached Figure Description

[0018] Figure 1 This is an isometric schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention;

[0020] Figure 3 for Figure 1 Rear view;

[0021] Figure 4 for Figure 1 The left view;

[0022] Figure 5 This is a schematic diagram of the structure of Example 2;

[0023] Figure 6 for Figure 5 A sectional view along the AA direction;

[0024] Figure 7 This is a schematic diagram showing the fit between the clip and the bottle body;

[0025] Figure 8 This is an assembly diagram of the first lifting unit and the bottle-separating plate fixing seat;

[0026] In the attached diagram, 1 is the chain guide fixing seat, 2 is the bottle separating plate fixing seat, 3 is the first shaft, 301 is the first variable pitch spiral groove, 4 is the second shaft, 401 is the second variable pitch spiral groove, 5 is the first spline shaft, 6 is the second spline shaft, 7 is the reducer, 8 is the gear, 9 is the slide rail, 10 is the slider, 11 is the bottle separating plate, 12 is the clamping plate, 13 is the push block, 14 is the push-pull rod, 15 is the first drive gear, 16 is the first rack, 17 is the second drive gear, 18 is the second rack, 19 is the return spring, and 20 is the guide groove. The one-way arrow indicates the conveying direction of the bottle. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0028] Example 1, as Figure 1 , Figure 2As shown, this invention relates to a dual-axis equidistant quick-change mechanism for a bottle-separating chain and bottle-separating plate, used to adjust the spacing between chain fixing seats 1 and between bottle-separating plate fixing seats 2. The chain fixing seat 1 is located at the midpoint between the bottle-separating plate fixing seats 2. The quick-change mechanism includes a first synchronous drive unit, a second synchronous drive unit, and a guide mechanism. The chain fixing seat 1 and the bottle-separating plate fixing seat 2 are respectively guided and cooperate with the guide mechanism. The chain fixing seat 1 is driven and cooperates with the first synchronous drive unit, and the bottle-separating plate fixing seat 2 is driven and cooperates with the second synchronous drive unit. Figure 1 , Figure 2 The direction of the unidirectional arrow in the middle indicates the conveying direction of the bottle relative to the quick-change mechanism.

[0029] The conveyor chain mounting base 1 is used to install the conveyor chain, and the bottle separating plate mounting base 2 is used to install the bottle separating plate 11. The conveyor chain is used to transport the bottles so that they pass through the bottle separating plate 11, which arranges and precisely separates the bottles. In this embodiment, the bottle separating plate 11 is directly mounted on the bottle separating plate mounting base 2.

[0030] The first synchronous drive unit drives the chain track fixing seat 1 to move along the guide mechanism, and the distance between the chain track fixing seats 1 increases or decreases synchronously. The second synchronous drive unit drives the bottle separating plate fixing seat 2 to move along the guide mechanism, and the distance between the bottle separating plate fixing seats 2 increases or decreases synchronously. The distance between the chain track fixing seats 1 and the distance between the bottle separating plate fixing seats 2 are quickly adjusted. With the guidance of the guide mechanism, the chain track fixing seats 1 and the bottle separating plate fixing seats 2 are ensured to move smoothly. The distance between the bottle separating plate fixing seats 2 is adapted to the bottle separating and conveying of bottles with different diameters. The chain track fixing seat 1 is adjusted to always be located at the midpoint between the bottle separating plate fixing seats 2, providing stable support for the bottle and effectively reducing bottle shaking, bottle jamming and other problems, and improving the conveying stability of the bottle.

[0031] Specifically, such as Figure 3 , Figure 4As shown, the first synchronous drive unit includes a first shaft 3, and the second synchronous drive unit includes a second shaft 4. The axial direction of the first shaft 3 and the axial direction of the second shaft 4 are both parallel to the guiding direction of the guiding mechanism. The first shaft 3, the second shaft 4 and the guiding mechanism are all mounted on the frame. The first shaft 3 and the second shaft 4 can rotate around their own axes on the frame. A set of first variable-pitch spiral grooves 301 are provided on the first shaft 3. The generatrix of the first shaft 3 intersects with each of the first variable-pitch spiral grooves 301 to form a set of first intersection points arranged at intervals. The first intersection points on the same generatrix are equally spaced, while the intervals between the first intersection points on different generatrixes are not equal. A set of second variable-pitch spiral grooves 401 are provided on the second shaft 4. The generatrix of the second shaft 4 intersects with each of the second variable-pitch spiral grooves 401 to form a set of second intersection points arranged at intervals. The second intersection points on the same generatrix are equally spaced, while the intervals between the second intersection points on different generatrixes are not equal. Each chain track fixing seat 1 is slidably engaged with one of the first variable-pitch spiral grooves 301 by means of a guide block. Each bottle divider fixing seat 2 is slidably engaged with one of the second variable-pitch spiral grooves 401 by means of a guide block. That is, the chain track fixing seat 1 is matched with the first variable-pitch spiral groove 301 one by one, and the bottle divider fixing seat 2 is matched with the second variable-pitch spiral groove 401 one by one. The guide blocks extend from the chain track fixing seat 1 to the first variable pitch spiral groove 301 and from the bottle separating plate fixing seat 2 to the second variable pitch spiral groove 401.

[0032] Through the contact between the first variable-pitch spiral groove 301 and the guide block, the first shaft 3 and the chain track fixing seat 1 form a cam mechanism; through the contact between the second variable-pitch spiral groove 401 and the guide block, the second shaft 4 and the bottle separating plate fixing seat 2 form a cam mechanism. The guide block is the driven component of the cam mechanism in the prior art.

[0033] The first shaft 3 rotates around its own axis, driving the chain track fixing seat 1 to move along the guide mechanism; the second shaft 4 rotates around its own axis, driving the bottle separating plate fixing seat 2 to move along the guide mechanism.

[0034] The first shaft 3 rotates around its own axis, and the second shaft 4 rotates around its own axis. The first variable pitch spiral groove 301 and the second variable pitch spiral groove 401 continuously and precisely adjust the spacing between the chain track fixing seats 1 and between the bottle separating plate fixing seats 2, respectively. This adapts to the needs of subtle spacing changes for bottles of different diameters, and meets the requirements for sorting and smooth conveying of bottles of different diameters. There is no need to disassemble and reassemble the chain track fixing seats 1 and the bottle separating plate fixing seats 2 or change their positions one by one, which greatly shortens the time for adjusting the spacing and makes the operation convenient.

[0035] Furthermore, the quick change mechanism also includes a reducer 7 connected to the drive motor. The output shaft of the reducer 7 is connected to the first shaft 3 or the second shaft 4. In this embodiment, the output shaft of the reducer 7 is connected to the first shaft 3. The first shaft 3 and the second shaft 4 are driven by a set of gears 8. In this embodiment, there are two gears 8. One gear 8 is coaxially fixed to the first shaft 3, and the other gear 8 is coaxially fixed to the second shaft 4. The drive motor drives the first shaft 3 to rotate around its own axis through the reducer 7. The gear 8 fixed to the first shaft 3 meshes with the gear 8 fixed to the second shaft 4, driving the second shaft 4 to rotate around its own axis. Without separate operation, the distance between the chain track fixing seats 1 and the distance between the bottle separating plate fixing seats 2 can be automatically and synchronously increased or decreased by a single drive motor.

[0036] Furthermore, the projections of the first variable pitch spiral groove 301 and the second variable pitch spiral groove 401 on the plane of the guide mechanism form an alternating cooperation. The second variable pitch spiral groove 401 is located between two adjacent first variable pitch spiral grooves 301, and the distance between the second variable pitch spiral groove 401 and the two adjacent first variable pitch spiral grooves 301 is equal, so that the chain track fixing seat 1 is always located at the midpoint of two adjacent bottle dividing plate fixing seats 2. The automatic adjustment of the spacing greatly shortens the changeover time for different bottle diameters, reduces the intensity of manual labor, and also reduces human operation errors.

[0037] like Figures 1-3 As shown, the guiding mechanism includes two pairs of slide rails 9. The first shaft 3 and the second shaft 4 are arranged sequentially in the left-right direction and parallel to each other on the same horizontal plane. A pair of slide rails 9 are arranged on each of the front and rear sides of the frame. The front-rear direction of the frame is the conveying direction of the bottle. The first shaft 3 and the second shaft 4 are arranged between the slide rails 9 on the front and rear sides of the frame. The pairs of slide rails 9 are arranged sequentially on the frame in a vertical direction. Each chain track fixing seat 1 forms a guiding engagement with a pair of slide rails 9 through a pair of sliders 10. Each bottle separating plate fixing seat 2 forms a guiding engagement with another pair of slide rails 9 through a pair of sliders 10. This prevents the chain track fixing seat 1 and the bottle separating plate fixing seat 2 from shifting or jamming during movement, and ensures the accuracy of the spacing adjustment.

[0038] Example 2 is basically the same as Example 1, except that, as Figure 5 , Figure 6As shown, the bottle-separating plate fixing base 2 is equipped with a bottle-separating plate 11 via a first lifting unit. A pair of clamping plates 12 and a return spring 19 are provided on the bottle-separating plate 11. The clamping plates 12 are hinged to the bottle-separating plate 11, and the return spring 19 is located between the two clamping plates 12 and connected to them respectively. A second lifting unit is also provided on the bottle-separating plate fixing base 2. The second lifting unit drives a push block 13 to move in and out between the clamping plates 12. The clamping plates 12 on adjacent sides of adjacent bottle-separating plates 11 swing towards each other with the push of the push block 13, forming a support structure at the bottle neck. The first lifting unit and the second lifting unit are respectively located on the front and rear sides of the bottle-separating plate fixing base 2. The length of the push block 13 is less than the length of the clamping plates 12. Return springs 19 are provided at both the front and rear ends of the clamping plates 12, and the push block 13 is located between the return springs 19.

[0039] Driven by the first lifting unit, the height of the bottle separating plate 11 is adjusted; driven by the second lifting unit, the push block 13 descends into the space between the clamping plates 12. By adjusting the relative height between the push block 13 and the clamping plates 12, as... Figure 7 As shown, the pusher 13 pushes the two clamping plates 12 to swing to the left and right sides of the bottle separating plate 11 respectively. The clamping plates 12 form a channel between adjacent bottle separating plates 11 for the neck of the bottle to pass through. When the bottle is being conveyed, the bottle separating plate 11 straightens the bottle. When the bottle tends to tilt along the conveying direction, the protruding edge of the bottle above its neck and with a diameter larger than the neck rests on the clamping plate 12. The clamping plate 12 blocks the bottle and prevents the bottle from tilting further. After the bottle automatically returns to its correct position, the bottle continues to be conveyed forward under the action of the conveyor chain, avoiding the bottle tilting during the bottle separating process from affecting the subsequent packaging accuracy.

[0040] The preferred clamp 12 is only installed on the inlet side of the bottle separating plate 11.

[0041] The pusher block 13 has a tapered cross-section that is wider at the top and narrower at the bottom, facilitating its descent between the two clamping plates 12 on the bottle separating plate 11. The bottle separating plate 11 has a sliding groove, and a push-pull rod 14 is located below the pusher block 13. The push-pull rod 14 guides the sliding groove and is driven by the second lifting unit. The varying heights of the pusher block 13 between the clamping plates 12 allow for adjustment of the swing angle of the clamping plates 12, thus adapting to the different neck thicknesses of various bottles.

[0042] like Figure 6 , Figure 8As shown, the first lifting unit includes a first drive gear 15 and a first rack 16 meshing with each other. The first drive gear 15 is rotatably mounted on the bottle-separating plate fixing seat 2, and the first rack 16 is fixedly connected to the bottle-separating plate 11. The second lifting unit includes a second drive gear 17 and a second rack 18 meshing with each other. The second drive gear 17 is rotatably mounted on the bottle-separating plate fixing seat 2, and the second rack 18 is fixedly connected to the push-pull rod 14, thereby achieving the fixed connection between the second rack 18 and the push block 13, and fixing the bottle-separating plate. The base 2 is provided with guide grooves 20 for the first rack 16 and the second rack 18 respectively. The guide grooves 20 are arranged in the vertical direction. The first rack 16 and the second rack 18 form a guide sliding engagement with their respective guide grooves 20. The first drive gear 15 rotates to drive the first rack 16 to rise and fall, thereby adjusting the height of the bottle separating plate 11. The second drive gear 17 rotates to drive the second rack 18 to rise and fall, thereby adjusting the height of the push block 13 on the bottle separating plate 11, so that the end of the clamping piece 12 is located at the neck of the bottle.

[0043] When the push block 13 exits between the clamping pieces 12, the clamping pieces 12 are reset under the action of the reset spring 19.

[0044] Preferably, the push block 13 is fixed to the push-pull rod 14 by bolts. After removing the bolts and taking the push block 13 off the push-pull rod 14, the push-pull rod 14 retracts into the groove on the bottle-separating plate 11. The clamping pieces 12 on the same bottle-separating plate 11 continue to approach each other under the action of the return spring 19. When the end position is reached, the end of the clamping piece 12 retracts directly above the bottle-separating plate 11, without interfering with the bottle body passing between adjacent bottle-separating plates 11. This is suitable for bottle-separating operations of bottles with tall bodies.

[0045] The first drive gear 15 is mounted on the first splined shaft 5 and has the freedom to move axially along the first splined shaft 5. The second drive gear 17 is mounted on the second splined shaft 6 and has the freedom to move axially along the second splined shaft 6. The axial directions of the first splined shaft 5 and the second splined shaft 6 are parallel to the guiding direction of the guiding mechanism, and the positions of the first splined shaft 5, the second splined shaft 6, and the guiding mechanism are relatively fixed. The first splined shaft 5 and the second splined shaft 6 are mounted on the frame and have the freedom to rotate around their own axes. The frame is equipped with motors for the first splined shaft 5 and the second splined shaft 6, respectively. The rotation of the first splined shaft 5 drives the first drive gear 17. When gear 15 rotates, the second splined shaft 6 rotates, driving the second drive gear 17 to rotate. When adjusting the spacing between the chain track fixing seats 1 and the spacing between the bottle separating plate fixing seats 2, the first drive gear 15 and the second drive gear 17 move on the first splined shaft 5 and the second splined shaft 6 respectively as the bottle separating plate fixing seat 2 moves, and do not disengage from the drive of the first splined shaft 5 and the second splined shaft 6. This realizes that a single motor drives multiple first drive gears 15 to rotate and a single motor drives multiple second drive gears 17 to rotate, effectively saving the number of motors required. It can also synchronously adjust the height of multiple bottle separating plates 11 and the height of multiple push blocks 13, saving manufacturing costs.

Claims

1. A quick-change mechanism for a bottle-separating chain conveyor and bottle-separating plate with equal spacing, used to adjust the spacing between chain conveyor fixing seats (1) and between bottle-separating plate fixing seats (2), wherein the chain conveyor fixing seats (1) are located at the midpoint between the bottle-separating plate fixing seats (2), characterized in that: The quick-change mechanism includes a first synchronous drive unit, a second synchronous drive unit, and a guide mechanism. The chain track fixing seat (1) and the bottle separating plate fixing seat (2) are respectively guided and cooperated with the guide mechanism. The chain track fixing seat (1) is driven and cooperated with the first synchronous drive unit. The bottle separating plate fixing seat (2) is driven and cooperated with the second synchronous drive unit. The first synchronous drive unit drives the chain track fixing seat (1) to move along the guide mechanism and the distance between the chain track fixing seats (1) increases or decreases synchronously. The second synchronous drive unit drives the bottle separating plate fixing seat (2) to move along the guide mechanism and the distance between the bottle separating plate fixing seats (2) increases or decreases synchronously. The bottle-separating plate fixing seat (2) is equipped with a bottle-separating plate (11) by means of a first lifting unit. A pair of clamping pieces (12) and a return spring (19) are provided on the bottle-separating plate (11). The clamping pieces (12) are hinged to the bottle-separating plate (11). The return spring (19) is located between the two clamping pieces (12) and is connected to the two clamping pieces (12) respectively. The bottle-separating plate fixing seat (2) is also equipped with a second lifting unit. The second lifting unit drives the push block (13) to move in and out between the two clamping pieces (12). The clamping pieces (12) on the adjacent sides of the adjacent bottle-separating plates (11) swing towards each other by means of the push block (13) and form a support structure at the neck of the bottle. The first lifting unit and the second lifting unit are respectively located on the front and rear sides of the bottle-separating plate fixing seat (2). The push block (13) has a tapered cross-section that is wider at the top and narrower at the bottom. The bottle separating plate (11) is provided with a sliding groove. A push-pull rod (14) is provided below the push block (13). The push-pull rod (14) is driven and cooperates with the second lifting unit through the sliding groove.

2. The bottle-separating chain conveyor and bottle-separating plate dual-axis equal-spacing rapid change mechanism according to claim 1, characterized in that: The first synchronous drive unit includes a first shaft (3), and the second synchronous drive unit includes a second shaft (4). The axial direction of the first shaft (3) and the axial direction of the second shaft (4) are both parallel to the guiding direction of the guide mechanism. A set of first variable pitch spiral grooves (301) are provided on the first shaft (3). The generatrix of the first shaft (3) intersects with each of the first variable pitch spiral grooves (301) to form a set of first intersection points arranged at equal intervals. A set of second variable pitch spiral grooves (401) are provided on the second shaft (4). The generatrix of the second shaft (4) intersects with each of the second variable pitch spiral grooves (401) to form a set of second intersection points arranged at equal intervals. The chain track fixing seat (1) forms a sliding fit with the first variable pitch spiral groove (301) by means of a guide block. The bottle dividing plate fixing seat (2) forms a sliding fit with the second variable pitch spiral groove (401) by means of a guide block. The first shaft (3) rotates around its own axis to drive the chain track fixing seat (1) to move along the guide mechanism. The second shaft (4) rotates around its own axis to drive the bottle dividing plate fixing seat (2) to move along the guide mechanism.

3. The bottle-separating chain conveyor and bottle-separating plate dual-axis equal-spacing rapid change mechanism according to claim 2, characterized in that: The quick change mechanism also includes a reducer (7) connected to the drive motor. The output shaft of the reducer (7) is connected to the first shaft (3) or the second shaft (4). The first shaft (3) and the second shaft (4) are driven by a set of gears (8). The drive motor drives the first shaft (3) and the second shaft (4) to rotate around their own axes respectively. The distance between the chain track fixing seats (1) and the distance between the bottle separating plate fixing seats (2) increases or decreases synchronously. The first variable pitch spiral groove (301) and the second variable pitch spiral groove (401) are alternately matched on the plane where the guide mechanism is located. The second variable pitch spiral groove (401) is located between two adjacent first variable pitch spiral grooves (301). The distance between the second variable pitch spiral groove (401) and the two adjacent first variable pitch spiral grooves (301) is equal.

4. The bottle-separating chain conveyor and bottle-separating plate dual-axis equidistant rapid change mechanism according to claim 1, characterized in that: The guiding mechanism includes a set of slide rails (9), and the chain track fixing seat (1) and the bottle dividing plate fixing seat (2) respectively form a guiding cooperation with the slide rails (9) by means of the slider (10).

5. The bottle-separating chain conveyor and bottle-separating plate dual-axis equidistant rapid change mechanism according to claim 1, characterized in that: The first lifting unit includes a first drive gear (15) and a first rack (16) meshing with each other. The first drive gear (15) is rotatably mounted on the bottle-separating plate fixing seat (2). The second lifting unit includes a second drive gear (17) and a second rack (18) meshing with each other. The second drive gear (17) is rotatably mounted on the bottle-separating plate fixing seat (2). The bottle-separating plate fixing seat (2) is provided with guide grooves (20) for the first rack (16) and the second rack (18) respectively. The first rack (16) is fixedly connected to the bottle-separating plate (11), and the second rack (18) is fixedly connected to the push block (13).

6. The bottle-separating chain conveyor and bottle-separating plate dual-axis equidistant rapid change mechanism according to claim 5, characterized in that: The first drive gear (15) is mounted on the first spline shaft (5) and has the freedom to move along the axial direction of the first spline shaft (5). The second drive gear (17) is mounted on the second spline shaft (6) and has the freedom to move along the axial direction of the second spline shaft (6). The axial directions of the first spline shaft (5) and the second spline shaft (6) are parallel to the guiding direction of the guiding mechanism. The positions of the first spline shaft (5), the second spline shaft (6) and the guiding mechanism are relatively fixed. The rotation of the first spline shaft (5) drives the first drive gear (15) to rotate, and the rotation of the second spline shaft (6) drives the second drive gear (17) to rotate.

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