A cap-rotating bottle-holding anti-rotation device and a cap-rotating system

Abstract

The present invention discloses a cap - screwing bottle - holding anti - rotation device and a cap - screwing system, which belong to the technical field of cap - screwing. The cap - screwing bottle - holding anti - rotation device includes a support plate, a bottle - holding mechanism and a star - wheel mechanism. The bottle - holding mechanism includes a plurality of first belt pulleys fixedly arranged on the support plate and a synchronous belt mounted on the plurality of first belt pulleys. The synchronous belt has an arc - shaped section. The star - wheel mechanism includes a lower star - wheel, a plurality of bottle - clamping seats and a plurality of rubber pads. The lower star - wheel can rotate under the action of an external force. The plurality of bottle - clamping seats are fixedly arranged on the lower star - wheel evenly and at intervals along the circumferential direction of the lower star - wheel. The plurality of rubber pads correspond to the plurality of bottle - clamping seats one by one. The rubber pads are fixedly arranged on the corresponding bottle - clamping seats, and the surface of the rubber pad far from the axis of the lower star - wheel has an arc - shaped groove. The arc - shaped section cooperates with the rubber pad to clamp the bottle body located in the arc - shaped groove. The cap - screwing bottle - holding anti - rotation device provided by the present invention can hold the bottle body when screwing the cap on the capping machine, prevent the bottle body from slipping, and can also prevent the bottle body from being scratched by friction.

Description

Technical Field

[0001] The present invention relates to the technical field of capping, and in particular to a bottle-holding and anti-rotation device for capping and a capping system. Background Art

[0002] At present, a capping machine is usually used to screw the bottle cap onto the bottle body or unscrew the bottle cap from the bottle body.

[0003] In the prior art, a rotary high-speed continuous capping machine is usually adopted. When capping, the capping machine needs to ensure that the bottle does not rotate. However, the glass bottle itself is not suitable for using a non-rotating knife that clamps the bottle mouth. Therefore, when capping, the bottle can only be stopped from rotating by clamping the glass bottle. However, the clamping jaws of the existing capping machine for clamping the glass bottle are usually rigid clamping jaws, and the contact between them and the glass bottle is a hard contact. The surface of the glass bottle is usually smooth. During the capping process, it is inevitable that the bottle body will rotate and cause frictional scratches, affecting the appearance of the bottle body. The rotation and slippage of the glass bottle will also affect the capping quality and cause air leakage of the product. Summary of the Invention

[0004] The purpose of the present invention is to provide a bottle-holding and anti-rotation device for capping and a capping system. The bottle-holding and anti-rotation device for capping can hold the bottle body when the capping machine caps, prevent the bottle body from slipping, and can also prevent frictional scratches on the bottle body.

[0005] As such a concept, the technical solution adopted by the present invention is as follows:

[0006] A bottle-holding and anti-rotation device for capping, comprising:

[0007] A support plate;

[0008] A bottle-holding mechanism, including a plurality of first belt pulleys fixedly arranged on the support plate and a synchronous belt mounted on the plurality of first belt pulleys. The synchronous belt has an arc section;

[0009] A star wheel mechanism, including a lower star wheel, a plurality of bottle clamping seats and a plurality of rubber pads. The lower star wheel can rotate under the action of an external force. The plurality of bottle clamping seats are fixedly arranged on the lower star wheel along the circumferential direction of the lower star wheel at equal intervals. The plurality of rubber pads correspond to the plurality of bottle clamping seats one by one. The rubber pads are fixedly arranged on the corresponding bottle clamping seats, and the surface of the rubber pad far from the axis of the lower star wheel has an arc groove;

[0010] The arc section cooperates with the rubber pad to clamp the bottle body located in the arc groove.

[0011] Optionally, the support plate has a circular arc-shaped notch, the lower star wheel is arranged in the notch, and the center of the lower star wheel coincides with the center of the notch.

[0012] Optionally, it further includes a guiding mechanism, which includes a first guiding plate. The first guiding plate is installed on the supporting plate, and the first guiding plate has a first guiding arc surface coplanar with the arc surface of the notch.

[0013] Optionally, the guiding mechanism further includes a second guiding plate and a first supporting member. The second guiding plate is installed above the first guiding plate in a direction perpendicular to the supporting plate. The first supporting member is supported between the first guiding plate and the second guiding plate. The second guiding plate has a second guiding arc surface coplanar with the first guiding arc surface.

[0014] Optionally, the guiding mechanism further includes a third guiding plate and a second supporting member. The third guiding plate is installed above the second guiding plate in a direction perpendicular to the supporting plate. The second supporting member is supported between the second guiding plate and the third guiding plate. The third guiding plate abuts against the bottle mouth of the bottle body.

[0015] Optionally, the guiding mechanism further includes a knob. The first guiding plate is detachably installed on the supporting plate through the knob.

[0016] Optionally, there are two sets of the guiding mechanisms. The two sets of guiding mechanisms are arranged oppositely on the supporting plate and are respectively located on both sides of the notch.

[0017] Optionally, the star wheel mechanism further includes an upper star wheel and a clamping plate. The upper star wheel and the lower star wheel are arranged at intervals in the vertical direction, and the upper star wheel abuts against the bottle mouth of the bottle body. The rubber pad is fixedly connected to the corresponding bottle clamping seat through the clamping plate.

[0018] Optionally, the bottle holding mechanism further includes a tensioning cylinder, a tensioning wheel and a second belt pulley. The tensioning cylinder and the tensioning wheel are respectively fixed on the supporting plate. The second belt pulley is fixedly connected to the output end of the tensioning cylinder. The synchronous belt is also wound around the tensioning wheel and the second belt pulley.

[0019] A capping system includes a capping machine and the above-mentioned capping bottle holding and anti-rotation device. The capping machine has a bottom plate and a driving member for driving the bottom plate to rotate. The lower star wheel is fixedly arranged on the bottom plate.

[0020] The present invention has at least the following beneficial effects:

[0021] In the cap - screwing bottle - holding anti - rotation device and the cap - screwing system provided by the present invention, the synchronous belt and the rubber pad cooperate with each other to clamp and hold the bottle body, thereby preventing the bottle body from rotating and slipping during the cap - screwing process, ensuring the cap - screwing quality, and preventing product air leakage caused by the slipping of the bottle body. The rubber pad and the synchronous belt are usually made of elastic and soft materials. Therefore, it can avoid scratching the bottle body due to friction, ensure the appearance of the bottle body, and reduce the defective rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a cross - sectional schematic view of the cap - screwing bottle - holding anti - rotation device provided by an embodiment of the present invention;

[0023] Figure 2 is the present invention Figure 1 an enlarged schematic view of part A shown in;

[0024] Figure 3 is the present invention Figure 1 an enlarged schematic view of part B shown in;

[0025] Figure 4 is a top view of the cap - screwing bottle - holding anti - rotation device provided by an embodiment of the present invention;

[0026] Figure 5 is a structural schematic view of a partial star - wheel mechanism provided by an embodiment of the present invention.

[0027] In the figure:

[0028] 1. Support plate; 11. Notch;

[0029] 2. Bottle - holding mechanism; 21. First pulley; 22. Synchronous belt; 221. Arc section; 23. Tensioning cylinder; 24. Tensioning pulley; 25. Second pulley;

[0030] 3. Star - wheel mechanism; 31. Lower star - wheel; 32. Bottle - clamping seat; 33. Rubber pad; 331. Arc groove; 34. Upper star - wheel; 35. Clamping plate; 36. Star - wheel mounting ring; 37. Star - wheel fixing plate;

[0031] 4. Guide mechanism; 41. First guide plate; 411. First guide arc surface; 42. Second guide plate; 421. Second guide arc surface; 43. First support member; 44. Third guide plate; 45. Second support member; 46. Knob;

[0032] 10. Bottom plate; 100. Bottle body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] To make the technical problems solved by the present invention, the technical solutions adopted, and the achieved technical effects clearer, the technical solutions of the present invention will be further described below with reference to the accompanying drawings and through specific embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Additionally, it should be noted that for the sake of convenience of description, only the parts related to the present invention are shown in the drawings rather than all of them.

[0034] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the horizontal height of the first feature is lower than that of the second feature.

[0036] In the description of this embodiment, the orientation or positional relationships such as "up", "down", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0037] This embodiment provides a screw cap holding and bottle anti-rotation device, which is used to hold the bottle body 100 when screwing the cap on the capping machine, prevent the bottle body 100 from slipping, and can also prevent friction scratches on the bottle body 100.

[0038] As Figure 1 shown, the screw cap holding and bottle anti-rotation device includes a support plate 1, a bottle holding mechanism 2, and a star wheel mechanism 3.

[0039] Among them, the bottle-holding mechanism 2 includes a plurality of first pulleys 21 and a synchronous belt 22. The plurality of first pulleys 21 are respectively fixed on the support plate 1. In this embodiment, the first pulleys 21 are fixedly spaced on the support plate 1. The synchronous belt 22 is wound around the plurality of first pulleys 21, so that the plurality of first pulleys 21 can achieve synchronous rotation through the synchronous belt 22. As Figure 4 shown, the synchronous belt 22 has an arc section 221, and the arc section 221 is formed by the limitation of the synchronous belt 22 by other objects.

[0040] As Figure 1 and Figure 2 shown, the star wheel mechanism 3 includes a lower star wheel 31, a plurality of bottle clamping seats 32 and a plurality of rubber pads 33. Among them, the lower star wheel 31 can rotate under the action of an external force. In some embodiments, the lower star wheel 31 is connected to the bottom plate 10 of the capping machine, and the bottom plate 10 of the capping machine can drive the rotation through a driving mechanism, and then drive the lower star wheel 31 to rotate through the bottom plate 10. In some embodiments, as Figure 2 shown, the lower star wheel 31 is fixed on the bottom plate 10 through a star wheel mounting ring 36 and a star wheel fixing plate 37. The plurality of bottle clamping seats 32 are fixedly arranged on the lower star wheel 31 evenly and at intervals along the circumferential direction of the lower star wheel 31. Specifically, the bottle clamping seats 32 are fixed on the outer periphery of the lower star wheel 31 and rotate with the lower star wheel 31 when the lower star wheel 31 rotates.

[0041] In this embodiment, as Figure 4 shown, the plurality of bottle clamping seats 32 are fixedly arranged on the lower star wheel 31 evenly and at intervals along the circumferential direction of the lower star wheel 31. The plurality of rubber pads 33 correspond to the plurality of bottle clamping seats 32 one by one. Each rubber pad 33 is fixed on the corresponding bottle clamping seat 32, and as Figure 4 or Figure 5 shown, the surface of the rubber pad 33 far from the axis of the lower star wheel 31 has an arc groove 331, and the shape and size of the arc groove 331 match the shape and size of the bottle body 100 to be held, so as to fix the bottle body 100. The arc section 221 of the synchronous belt 22 cooperates with the rubber pad 33 to clamp the bottle body 100 located in the arc groove 331, and then hold the bottle body 100 to prevent the bottle body 100 from sliding when the capping machine caps the bottle. It should be noted that, as Figure 4 shown, when there is no bottle body 100 in the arc groove 331, the arc section 221 of the synchronous belt 22 is attached to some of the rubber pads 33, and the material of the rubber pad 33 can reduce the wear on the synchronous belt 22.

[0042] When the cap - screwing bottle - holding anti - rotation device provided in this embodiment is in use, the bottle body 100 is limited in the arc groove 331. The lower star wheel 31 drives the bottle - holding seat 32 to rotate, so as to drive the bottle body 100 to the position between the arc - shaped section 221 of the synchronous belt 22 and the rubber pad 33. The frictional force between the synchronous belt 22 and the rubber pad 33 clamps and holds the bottle body 100. At this time, the cap - screwing machine can screw the cap on the bottle body 100. During this process, the bottle body 100 will not slip and rotate.

[0043] In the cap - screwing bottle - holding anti - rotation device provided in this embodiment, the synchronous belt 22 and the rubber pad 33 cooperate with each other to clamp and hold the bottle body 100, thereby preventing the bottle body 100 from rotating and slipping during the cap - screwing process, ensuring the cap - screwing quality, and preventing product air leakage caused by the slipping of the bottle body 100. The rubber pad 33 and the synchronous belt 22 are usually made of elastic and soft materials. Therefore, it can avoid scratching the bottle body 100 due to friction, ensure the appearance of the bottle body 100, and reduce the defective rate.

[0044] Optionally, as Figure 4 shown, the support plate 1 has a circular - arc - shaped notch 11. Specifically, the notch 11 is semi - circular - arc - shaped. Part of the lower star wheel 31 is arranged in the notch 11, and the center of the lower star wheel 31 coincides with the center of the notch 11, so that the support plate 1 and the star - wheel mechanism 3 cooperate with each other to form the arc - shaped section 221.

[0045] Furthermore, please continue to refer to Figure 3 and Figure 4 , the cap - screwing bottle - holding anti - rotation device further includes a guiding mechanism 4. The guiding mechanism 4 is used to guide the bottle body 100 into the space between the arc groove 331 and the arc - shaped section 221. Specifically, the guiding mechanism 4 includes a first guiding plate 41. The first guiding plate 41 is installed on the support plate 1, and the first guiding plate 41 has a first guiding arc surface 411 coplanar with the arc surface of the notch 11. The first guiding arc surface 411 is used to guide the movement of the bottle body 100. In some embodiments, the first guiding plate 41 extends from the end of the notch 11 in a direction away from the support portion 1.

[0046] Optionally, the guiding mechanism 4 further includes a second guiding plate 42 and a first support member 43. Among them, the second guiding plate 42 is in a direction perpendicular to the support plate 1 (i.e., Figure 1is installed above the first guide plate 41 in the up-and-down direction (in the figure), the first support 43 is supported between the first guide plate 41 and the second guide plate 42 and is used to support the second guide plate 42. The second guide plate 42 has a second guide arc surface 421 coplanar with the first guide arc surface 411. The first guide arc surface 411 is used to guide the bottom of the bottle body 100, and the second guide arc surface 421 is used to guide the middle part of the bottle body 100, so as to reduce the probability of the bottle body 100 tilting during movement. In some embodiments, the first support 43 may include a stud and a sleeve sleeved outside the stud.

[0047] In this embodiment, as Figure 3 shown, the guiding mechanism 4 further includes a third guide plate 44 and a second support 45. Among them, the third guide plate 44 is installed above the second guide plate 42 in a direction perpendicular to the support plate 1, that is, along the direction away from the support plate 1, the first guide plate 41, the second guide plate 42 and the third guide plate 44 are arranged in sequence. The second support 45 is supported between the second guide plate 42 and the third guide plate 44 for supporting the third guide plate 44. The third guide plate 44 abuts against the mouth of the bottle body 100 to support the mouth of the bottle body 100 and further prevent the bottle body 100 from tilting. In some embodiments, the second support 45 may include a stud and a sleeve sleeved outside the stud. Optionally, in this embodiment, the third guide plate 44 has an arc-shaped structure and extends along the notch of the support plate 1, so that the third guide plate 44 can always support and limit the bottle body 100 during the movement of the bottle body 100, so that the bottle body 100 is always in a vertical state and will not tilt.

[0048] Optionally, in this embodiment, the guiding mechanism 4 further includes a knob 46. The first guide plate 41 is detachably installed on the support plate 1 through the knob 46 to realize the quick installation and disassembly of the guiding mechanism 4 on the support plate 1, and then replace the guiding mechanism 4 adapted to the bottle body 100. The knob 46 can be snap-connected or magnetically connected to the support plate 1, and the knob 46 can pass through the first guide plate 41 and the second guide plate 42 at the same time to have a better fixing effect. The specific structure of the knob 46 can refer to the prior art, and this embodiment does not limit it.

[0049] As Figure 4 shown, there are two sets of guiding mechanisms 4. The two sets of guiding mechanisms 4 are arranged oppositely on the support plate 1 and are respectively located on both sides of the notch 11. One of the two sets of guiding mechanisms 4 is used to introduce the bottle body 100, and the other is used to export the bottle body 100. Optionally, in this embodiment, the two sets of guiding mechanisms 4 can share a third guide plate 44, that is, the third guide plate 44 extends from one set of guiding mechanisms 4 to the other set of guiding structures 4, so as to be able to support the mouth of the bottle body 100 throughout the process when the bottle body 100 moves.

[0050] It should be noted that among the multiple first belt pulleys 21, there are first belt pulleys 21 disposed near one set of guiding mechanisms 4 and first belt pulleys 21 disposed near another set of guiding mechanisms 4. Among them, as Figure 4 shown, the second guiding plate 42 and the first guiding plate 41 have avoidance grooves, and the first belt pulley 21 is installed at the position of the avoidance groove. The positions of the above two first belt pulleys 21 and the lower star wheel 31 can obtain the arc segment 221.

[0051] Optionally, as Figure 2 shown, the star wheel mechanism 3 further includes an upper star wheel 34 and a clamping plate 35. Among them, the upper star wheel 34 and the lower star wheel 31 are arranged at intervals in the vertical direction. In Figure 1 it, the upper star wheel 34 is located above the lower star wheel 31, and the upper star wheel 34 and the third guiding plate 44 cooperate with each other to abut against the bottle mouth of the bottle body 100, so that the bottle body 100 can always maintain a vertical state during the movement. As Figure 5 shown, the rubber pad 33 is fixedly connected to the corresponding bottle clamping seat 32 through the clamping plate 35. In this embodiment, the bottle clamping seat 32 has an elongated hole, and the bottle clamping seat 32 is fixed on the lower star wheel 31 through a fixing member passing through the elongated hole, and the setting of the elongated hole 32 enables the connection position of the bottle clamping seat 32 on the lower star wheel 31 to be adjustable, so as to be applicable to bottle bodies 100 with different sizes.

[0052] Please continue to refer to Figure 4 , the bottle holding mechanism 2 further includes a tensioning cylinder 23, a tensioning wheel 24 and a second belt pulley 25. Among them, the tensioning cylinder 23 and the tensioning wheel 24 are respectively fixed on the support plate 1, the second belt pulley 25 is fixedly connected to the output end of the tensioning cylinder 23, the synchronous belt 22 is also wound around the tensioning wheel 24 and the second belt pulley 25, and the tensioning cylinder 23 pushes the second belt pulley 25 to move, thereby realizing the tensioning of the synchronous belt 22, and the tensioning wheel 24 is also used to adjust the tension degree of the synchronous belt 22. In this embodiment, the outer contour of the support plate 1 is trapezoidal, and the bottle holding mechanism 2 includes three first belt pulleys 22 and one second belt pulley 25. One first belt pulley 22 and the second belt pulley 25 are located at the short straight side of the support plate 1, the tensioning cylinder 23 extends along the short straight side, the notch 11 is arranged at the long straight side of the support plate 1, and the tensioning wheel 24 is arranged in the middle of the support plate 1 and is located between the three first belt pulleys 22 and one second belt pulley 25.

[0053] This embodiment also provides a capping system, which can be used to screw the bottle cap onto the bottle body 100 and can also be used to unscrew the bottle cap of the bottle body 100. The capping system includes a capping machine and the above-mentioned capping bottle holding anti-rotation device. Among them, as Figure 1As shown, the capping machine has a bottom plate 10 and a driving member for driving the rotation of the bottom plate 10. The lower star wheel 31 is fixedly provided on the bottom plate 10, and the driving member is used to drive the rotation of the bottom plate 10 so as to be able to drive the rotation of the lower star wheel 31.

[0054] Furthermore, the upper star wheel 34 is fixed to other structures of the capping machine, and the capping machine can be used to drive the rotation of the upper star wheel 34 or the capping machine is only used to fix the upper star wheel 34. This embodiment does not make a limitation on this.

[0055] For the capping bottle-holding anti-rotation device and the capping system provided in this embodiment, the material of the synchronous belt 22 is rubber or silica gel material, and the material of the rubber pad is polyurethane. The synchronous belt 22 is used to closely adhere to the bottle body 100, and a polyurethane rubber pad 33 is inlaid on the lower star wheel 31. During the capping process, a frictional force in the opposite direction is given to the bottle body 100 to ensure that the bottle body 100 does not rotate together with the capping head of the capping machine when capping. At the same time, both the synchronous belt 22 and the rubber pad 33 are soft materials and will not cause scratches on the outer wall of the bottle.

[0056] The above embodiments only illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, there are various changes and alterations to the present invention, and these changes and alterations all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A bottle-holding and anti-rotation device for screwing caps, characterized in that, Including: Support plate (1); Bottle clamping mechanism (2), including a plurality of first pulleys (21) fixed on the support plate (1) and a synchronous belt (22) installed on the plurality of first pulleys (21), and the synchronous belt (22) has an arc section (221); Star wheel mechanism (3), including a lower star wheel (31), a plurality of bottle clamping seats (32) and a plurality of rubber pads (33), the lower star wheel (31) can rotate under the action of an external force, the plurality of bottle clamping seats (32) are fixedly arranged on the lower star wheel (31) evenly and at intervals along the circumference of the lower star wheel (31), the plurality of rubber pads (33) correspond to the plurality of bottle clamping seats (32) one by one, the rubber pads (33) are fixed on the corresponding bottle clamping seats (32), and the surface of the rubber pad (33) far from the axis of the lower star wheel (31) has an arc groove (331); The arc section (221) cooperates with the rubber pad (33) to clamp the bottle body located in the arc groove (331); The support plate (1) has an arc-shaped notch (11), the lower star wheel (31) is arranged in the notch (11), and the center of the lower star wheel (31) coincides with the center of the notch (11); It further includes a guiding mechanism (4), the guiding mechanism (4) includes a first guiding plate (41), the first guiding plate (41) is installed on the support plate (1), and the first guiding plate (41) has a first guiding arc surface (411) coplanar with the arc surface of the notch (11); The guiding mechanism (4) further includes a second guiding plate (42) and a first support member (43), the second guiding plate (42) is installed above the first guiding plate (41) in a direction perpendicular to the support plate (1), the first support member (43) supports between the first guiding plate (41) and the second guiding plate (42), and the second guiding plate (42) has a second guiding arc surface (421) coplanar with the first guiding arc surface (411); The guiding mechanism (4) further includes a third guiding plate (44) and a second support member (45), the third guiding plate (44) is installed above the second guiding plate (42) in a direction perpendicular to the support plate (1), the second support member (45) supports between the second guiding plate (42) and the third guiding plate (44), and the third guiding plate (44) abuts against the bottle mouth of the bottle body; The star wheel mechanism (3) further includes an upper star wheel (34) and a clamping plate (35), the upper star wheel (34) and the lower star wheel (31) are arranged at intervals in the vertical direction, and the upper star wheel (34) abuts against the bottle mouth of the bottle body, and the rubber pad (33) is fixedly connected to the corresponding bottle clamping seat (32) through the clamping plate (35).

2. The bottle-holding and anti-rotation device for screwing caps according to claim 1, characterized in that, The guiding mechanism (4) further includes a knob (46), and the first guiding plate (41) is detachably installed on the support plate (1) through the knob (46).

3. The bottle-holding and anti-rotation device for screwing caps according to claim 2, characterized in that, There are two sets of the guiding mechanisms (4), and the two sets of guiding mechanisms (4) are oppositely arranged on the supporting plate (1) and are respectively located on both sides of the notch (11).

4. The bottle-holding and anti-rotation device for screwing caps according to claim 1, characterized in that, The bottle holding mechanism (2) further includes a tensioning cylinder (23), a tensioning wheel (24) and a second belt pulley (25). The tensioning cylinder (23) and the tensioning wheel (24) are respectively fixed on the supporting plate (1), the second belt pulley (25) is fixedly connected to the output end of the tensioning cylinder (23), and the synchronous belt (22) is further wound around the tensioning wheel (24) and the second belt pulley (25).

5. A cap-screwing system, characterized in that, It includes a capping machine and the capping and bottle holding anti-rotation device according to any one of claims 1-4. The capping machine has a bottom plate (10) and a driving member for driving the bottom plate (10) to rotate, and the lower star wheel (31) is fixed on the bottom plate (10).

Images