Bottle cap orienting device and cap sealing machine

Abstract

The invention belongs to the technical field of filling machinery, and discloses a bottle cap orienting device and a cap sealing machine. The bottle cap orienting device comprises a rack, a bearing part, a first cap separating mechanism and a second cap separating mechanism, and the bearing part is fixed to the rack and used for bearing bottle caps; the first cap separating mechanism comprises a first driving plate assembly and a first cap rubbing assembly, the first driving plate assembly comprises a first driving piece, a first driving plate and a first cap protecting piece, a plurality of first bayonets are formed in the first driving plate at intervals, and a first positioning part is arranged at each first bayonet; the second cover separating mechanism is arranged on the downstream of the first cover separating mechanism and comprises a second driving plate assembly and a second cover twisting assembly, the second driving plate assembly comprises a second driving part, a second driving plate and a second cover protecting part, the second driving plate is provided with a plurality of second bayonets at intervals, and each second bayonet is provided with a second positioning part. According to the bottle cap positioning device, the situation that the lug of the bottle cap abuts against the positioning block and consequently the bottle cap is stuck can be avoided, accurate positioning of the bottle cap can be achieved, and reliability is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of filling machinery, and in particular to a bottle cap orientation device and a capping machine. Background Art

[0002] For packaging containers with handles, such as some plastic oil bottles, soy sauce bottles, etc., if a flip-top bottle cap is required, the direction of the bottle cap opening needs to be opposite to the hand-held position to facilitate pouring and give users a better user experience. For such bottle caps, the bottle caps need to be positioned during installation so that the opening of the bottle caps remains in the correct direction after installation, and then the bottle caps can be grabbed for installation. Therefore, it is necessary to design a bottle cap orientation device to orient the bottle caps.

[0003] In patent CN110844565A, the bottle caps are separated by a separation plate, and the guide plate is arranged on the periphery of the separation plate and contacts with the bottle caps to guide the bottle caps. During the separation process, the lugs of the bottle caps are abutted against the positioning blocks by the rotation of a number of planetary turntables to achieve the orientation of the bottle caps. However, when the bottle caps enter the separation plate, there may be a problem that the lugs of the bottle caps are pressed against the positioning blocks of the separation plate, causing the bottle caps to be stuck, resulting in the problem that the bottle caps are squeezed during the rotation of the separation plate. In addition, the bottle caps are placed on the planetary turntable, and the force used by the planetary turntable to rotate the bottle caps comes from the friction between the bottle caps and the planetary turntable. The friction resistance of the guide plate to the bottle caps may cause the bottle caps to rotate non-synchronously with the planetary turntable, so that the bottle caps cannot rotate to a sufficient angle and abut against the positioning blocks, causing the device to have a problem of insufficient reliability.

[0004] Therefore, there is an urgent need for a bottle cap orienting device and a capping machine to solve the above technical problems. Summary of the invention

[0005] The object of the present invention is to provide a bottle cap orientation device and a capping machine, which can avoid the problem that the lug of the bottle cap hits the positioning block and causes the bottle cap to be stuck, and can ensure the reliability of the device and realize accurate positioning of the bottle cap.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] In one aspect, a bottle cap orientation device is provided, comprising:

[0008] frame,

[0009] A bearing member, fixed to the frame, for bearing bottle caps;

[0010] The first cap separation mechanism comprises a first dial assembly and a first cap rolling assembly, wherein the first dial assembly comprises a first driving member, a first dial and a first protective cover member, wherein the first driving member is arranged on the frame and is used to drive the first dial to rotate; the first dial is provided with a plurality of first bayonet holes at intervals, each of the first bayonet holes is provided with a first positioning portion, the first protective cover member is arranged outside the first dial, the bottle cap can be inserted into the first bayonet hole and contact the first protective cover member; the first cap rolling assembly can elastically abut against the bottle cap to make the bottle cap rotate, so that the lug side wall of the bottle cap abuts against the first positioning portion;

[0011] The second cover separation mechanism is arranged downstream of the first cover separation mechanism, the second cover separation mechanism includes a second dial assembly and a second cover rubbing assembly, the second dial assembly includes a second driving member, a second dial and a second protective cover member, the second driving member is arranged on the frame, and is used to drive the second dial to rotate in a direction opposite to the rotation direction of the first dial; the second dial is provided with a plurality of second bayonet holes at intervals, each of the second bayonet holes is provided with a second positioning portion, the second protective cover member is arranged outside the second dial, the bottle cap can be inserted into the second bayonet hole after passing through the first bayonet hole, and contacts with the second protective cover member; the second cover rubbing assembly can elastically abut against the bottle cap, so that the bottle cap rotates so that the side wall of the lug abuts against the second positioning portion.

[0012] In some possible implementations, when the cover body of the bottle cap is inserted into the first snap-in opening and contacts the first protective cover member, a gap exists between the cover body and the first snap-in opening, and the gap is smaller than the thickness of the lug.

[0013] In some possible embodiments, when one end of the bottle cap is snapped into the first snap-in slot and the other end of the bottle cap is snapped into the second snap-in slot, the first positioning portion and the second positioning portion are distributed along the same circumference, and the arc distance between the first positioning portion and the second positioning portion is greater than the width of the lug.

[0014] In some possible implementations, the first cap-rubbing assembly includes a first elastic band, the first elastic band is disposed outside the first dial, and the first elastic band can elastically abut against the bottle cap; and / or,

[0015] The second cap-rubbing assembly comprises a second elastic band, the second elastic band is arranged around the second dial, and the second elastic band can elastically abut against the bottle cap.

[0016] In some possible embodiments, the first cover rubbing assembly further includes two first stretching members, the first elastic band is a ring-shaped structure, and the two first stretching members are fixed to the supporting member for stretching the first elastic band; the second cover rubbing assembly further includes two second stretching members, the second elastic band is a ring-shaped structure, and the two second stretching members are fixed to the supporting member for stretching the second elastic band.

[0017] In some possible implementations, both the first spreading member and the second spreading member are rollers.

[0018] In some possible embodiments, the first driving member includes a first rotating shaft and a first transmission wheel fixed to the first rotating shaft, the second driving member includes a second rotating shaft and a second transmission wheel fixed to the second rotating shaft, the first rotating shaft and the second rotating shaft can both rotate relative to the frame, the first transmission wheel and the second transmission wheel are arranged in an up-and-down offset manner, the first transmission wheel is provided with a plurality of first gear teeth, the second transmission wheel is provided with a plurality of second gear teeth, each of the second gear teeth is provided with a pin shaft, and the pin shaft is meshed with the first gear teeth.

[0019] In some possible implementations, the first rotating shaft and the second rotating shaft are both rotatably connected to the frame, and the second gear teeth are configured to mesh with the capping arms of the capping device.

[0020] In some possible embodiments, the bottle cap orienting device also includes two first cap guide members located upstream of the first cap separation mechanism and two second cap guide members located downstream of the second cap separation mechanism, the two first cap guide members are fixed to the supporting member at intervals and form a first cap guide channel, and the first cap guide channel can be connected to the first bayonet; the two second cap guide members are fixed to the supporting member at intervals and form a second cap guide channel, and the second cap guide channel can be connected to the second bayonet.

[0021] On the other hand, a capping machine is also provided, comprising a lower cap assembly and a bottle cap orienting device as described in any of the above schemes, wherein the lower cap assembly is arranged upstream of the bottle cap orienting device.

[0022] Beneficial effects of the present invention:

[0023] The bottle cap orientation device provided by the present invention comprises a frame, a bearing, a first cap separation mechanism and a second cap separation mechanism. When the bottle cap enters the first dial and the bottle cap is separated, the first cap rubbing assembly elastically abuts against the bottle cap to make the bottle cap rotate, so that the side wall of the lug abuts against the first positioning part, and the bottle cap is initially oriented to avoid the lug against the second positioning part when the bottle cap enters the second dial. After the bottle cap enters the second dial, the second cap rubbing assembly elastically abuts against the bottle cap to make the bottle cap rotate, so that the side wall of the lug abuts against the second positioning part, and the bottle cap is finally oriented to meet the subsequent installation of the bottle cap and the bottle body. By setting the first cap rubbing assembly and the second cap rubbing assembly, the accurate positioning of the bottle cap can be achieved, and the reliability of the device is guaranteed. When the bottle cap enters the first dial, if the lug of the bottle cap abuts the first positioning part, the second dial is set for transition, and the lug of the bottle cap automatically detaches from the first positioning part when the bottle cap enters the second dial, which can avoid the lug of the bottle cap abutting on the first positioning part and causing the bottle cap to be stuck, thereby ensuring the reliability of the device.

[0024] The present invention also provides a capping machine, which can prevent the lug of the bottle cap from hitting the positioning block to cause the bottle cap to be stuck, and can achieve accurate positioning of the bottle cap to ensure reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a front view of the bottle cap involved in the present invention;

[0026] Figure 2 is an attached view of the bottle cap involved in the present invention;

[0027] Figure 3 It is a structural schematic diagram of the bottle cap orientation device, the lower cover assembly and the capping arm involved in the present invention;

[0028] Figure 4 It is a structural schematic diagram of the bottle cap orientation device provided by the present invention;

[0029] Figure 5 It is a structural schematic diagram of the first dial and the bottle cap involved in the present invention;

[0030] Figure 6 It is a partial structural schematic diagram of the bottle cap orientation device provided by the present invention (when the lug does not support the first positioning portion);

[0031] Figure 7 It is a partial structural schematic diagram of the bottle cap orientation device provided by the present invention (when the lug abuts against the first positioning portion);

[0032] Figure 8 It is a structural schematic diagram of the first transmission wheel, the second transmission wheel and the capping arm involved in the present invention;

[0033] Fig. 9 It is a structural schematic diagram of the first cover rubbing assembly involved in the present invention.

[0034] In the figure:

[0035] 1. Frame; 11. Connecting ring; 12. Fixing rod;

[0036] 2. Bearing parts;

[0037] 3. First dial assembly; 311. First rotating shaft; 312. First transmission wheel; 32. First dial; 321. First bayonet; 322. First positioning portion; 33. First protective cover; 34. First mounting member;

[0038] 4. First cover rubbing assembly; 41. First elastic band; 42. First opening member; 43. First tensioning wheel;

[0039] 5. second dial assembly; 511. second rotating shaft; 512. second transmission wheel; 5121. pin shaft; 52. second dial; 521. second bayonet; 522. second positioning portion; 53. second protective cover; 54. second mounting member;

[0040] 6. Second cover rubbing assembly; 7. First cover guide member; 8. Second cover guide member;

[0041] 100, bottle cap; 101, cover body; 102, lug; 200, capping arm; 300, lower cover assembly. DETAILED DESCRIPTION

[0042] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0043] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0045] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0046] like Figure 1 and Figure 2 As shown, the bottle cap 100 includes a cap body 101 and a lug 102. Figures 3 to 9 As shown, the present invention provides a bottle cap orientation device, which orients the bottle cap 100 to ensure that the bottle cap 100 is output in a set direction. The bottle cap orientation device includes a frame 1, a carrier 2, a first cap separation mechanism and a second cap separation mechanism. The carrier 2 is fixed to the frame 1 and is used to carry the bottle cap 100; the first cap separation mechanism includes a first dial assembly 3 and a first cap rubbing assembly 4. The first dial assembly 3 includes a first driving member, a first dial 32 and a first protective cover member 33. The first driving member is arranged on the frame 1 and is used to drive the first dial 32 to rotate; the first dial 32 is provided with a plurality of first bayonet holes 321 at intervals, and each first bayonet hole 321 is provided with a first positioning portion 322. Specifically, the first dial assembly 3 also includes a plurality of first mounting members 34, and the plurality of first mounting members 34 are arranged one-to-one with the plurality of first bayonet holes 321. The first positioning portion 322 is arranged on the first mounting member 34, and the first mounting member 34 is fixed to the first dial 32 by a countersunk screw. The first protective cover member 33 is disposed outside the first dial 32, and the bottle cap 100 can be inserted into the first bayonet 321 and contact the first protective cover member 33; the first capping assembly 4 can elastically abut against the bottle cap 100 to make the bottle cap 100 rotate so that the side wall of the lug 102 of the bottle cap 100 abuts against the first positioning portion 322;

[0047] The second sub-cover mechanism is arranged downstream of the first sub-cover mechanism, and the second sub-cover mechanism includes a second dial assembly 5 and a second cover assembly 6. The second dial assembly 5 includes a second driving member, a second dial 52 and a second protective cover member 53. The second driving member is arranged on the frame 1, and is used to drive the second dial 52 to rotate in a direction opposite to the rotation direction of the first dial 32; the second dial 52 is provided with a plurality of second bayonet holes 521 at intervals, and each second bayonet hole 521 is provided with a second positioning portion 522. Specifically, the second dial assembly 5 also includes a plurality of second mounting members 54, and the plurality of second mounting members 54 are arranged in a one-to-one correspondence with the plurality of second bayonet holes 521. The second positioning portion 522 is arranged on the second mounting member 54, and the second mounting member 54 is fixed to the second dial 52 by a countersunk screw. The second protective cover member 53 is arranged outside the second dial 52. After passing through the first bayonet 321, the bottle cap 100 can be inserted into the second bayonet 521 and contact the second protective cover member 53; the second cap-rubbing component 6 can elastically abut against the bottle cap 100, so that the bottle cap 100 rotates so that the side wall of the lug 102 abuts against the second positioning portion 522.

[0048] When the bottle cap 100 enters the first dial 32, when the bottle cap 100 is separated, the first capping assembly 4 elastically abuts against the bottle cap 100 to make the bottle cap 100 rotate, so that the side wall of the lug 102 abuts against the first positioning portion 322, and the bottle cap 100 is initially oriented to prevent the lug 102 from abutting against the second positioning portion 522 when the bottle cap 100 enters the second dial 52. After the bottle cap 100 enters the second dial 52, the second capping assembly 6 elastically abuts against the bottle cap 100 to make the bottle cap 100 rotate, so that the side wall of the lug 102 abuts against the second positioning portion 522, and the bottle cap 100 is finally oriented to meet the subsequent installation of the bottle cap 100 and the bottle body. By providing the first capping assembly 4 and the second capping assembly 6, the accurate positioning of the bottle cap 100 can be achieved, and the reliability of the device is guaranteed. When the bottle cap 100 enters the first dial 32, if the lug 102 of the bottle cap 100 presses against the first positioning portion 322, the second dial 52 is provided for transition. When the bottle cap 100 enters the second dial 52, the lug 102 of the bottle cap 100 will automatically disengage from the first positioning portion 322, thereby preventing the lug 102 of the bottle cap 100 from pressing against the first positioning portion 322 and causing the bottle cap 100 to be stuck, thereby ensuring the reliability of the device.

[0049] The specific working process is as follows: Figure 4 and Figure 6As shown, in most cases, when the bottle cap 100 enters the first bayonet 321 of the first dial 32, the lug 102 of the bottle cap 100 does not contact the first positioning portion 322 on the first dial 32, and the first dial 32 rotates clockwise to drive the bottle cap 100 to revolve on the carrier 2. When the bottle cap 100 passes through the first cap-rolling assembly 4, the bottle cap 100 elastically abuts against the first cap-rolling assembly 4 and rotates counterclockwise, so that the lug 102 of the bottle cap 100 abuts against the first positioning portion 322 and then the bottle cap 100 stops rotating. When the bottle cap 100 enters the second bayonet 521 of the second dial 52, the lug 102 of the bottle cap 100 does not contact the second positioning portion 522, and the second dial 52 rotates counterclockwise to drive the bottle cap 100 to revolve on the carrier 2. When the bottle cap 100 passes through the second cap rolling assembly 6, the bottle cap 100 elastically abuts against the second cap rolling assembly 6 and rotates clockwise. When the lug 102 of the bottle cap 100 abuts against the second positioning portion 522, the bottle cap 100 stops rotating, is oriented, and is sent out of the second cap separating mechanism.

[0050] like Figure 7 As shown, when the bottle cap 100 enters the first bayonet 321 of the first dial 32, the lug 102 of the bottle cap 100 presses against the first positioning portion 322 on the first dial 32, and the first dial 32 rotates clockwise to drive the bottle cap 100 to revolve on the carrier 2. After the bottle cap 100 enters the second bayonet 521 of the second dial 52, the lug 102 of the bottle cap 100 automatically disengages from the first positioning portion 322, and then under the action of the second cap-rolling assembly 6, the bottle cap 100 rotates clockwise, and when the lug 102 of the bottle cap 100 abuts against the second positioning portion 522, the bottle cap 100 stops rotating, is oriented, and is sent out of the second cap-separating mechanism.

[0051] In order to enable the bottle cap 100 to smoothly enter the first capping mechanism and to enable the bottle cap 100 to smoothly move out of the second capping mechanism, optionally, in this embodiment, Figure 4 As shown, the bottle cap orienting device also includes two first cap guide members 7 located upstream of the first cap separation mechanism and two second cap guide members 8 located downstream of the second cap separation mechanism. The two first cap guide members 7 are fixed to the carrier 2 at intervals and form a first cap guide channel, which can be connected to the first bayonet 321; the two second cap guide members 8 are fixed to the carrier 2 at intervals and form a second cap guide channel, which can be connected to the second bayonet 521.

[0052] Optionally, in this embodiment, if Figure 6As shown, when one end of the bottle cap 100 is inserted into the first bayonet 321 and the other end of the bottle cap 100 is inserted into the second bayonet 521, the first positioning portion 322 and the second positioning portion 522 are distributed along the same circumference, and the arc distance between the first positioning portion 322 and the second positioning portion 522 is greater than the width of the lug 102. This prevents the lug 102 from interfering with the second positioning portion 522 when the bottle cap 100 enters the second bayonet 521 from the first bayonet 321.

[0053] Optionally, in this embodiment, if Figure 7 As shown, when the cover body 101 of the bottle cap 100 is inserted into the first bayonet 321 and contacts the first protective cover member 33, there is a gap between the cover body 101 and the first bayonet 321, and the gap is smaller than the thickness of the lug 102. This arrangement ensures that the bottle cap 100 smoothly enters the first bayonet 321 while preventing the lug 102 from pressing against the first positioning portion 322, and enables the side wall of the lug 102 to abut against the side wall of the first positioning portion 322.

[0054] Optionally, in this embodiment, if Fig. 9 As shown, the first cap-rolling assembly 4 includes a first elastic band 41, which is arranged outside the first dial 32, and can elastically abut against the bottle cap 100, so that the bottle cap 100 rotates, so that the side wall of the lug 102 of the bottle cap 100 abuts against the first positioning portion 322. In addition, the second cap-rolling assembly 6 includes a second elastic band, which is arranged outside the second dial 52, and can elastically abut against the bottle cap 100, so that the bottle cap 100 rotates, so that the side wall of the lug 102 of the bottle cap 100 abuts against the second positioning portion 522. By providing the first elastic band 41 or the second elastic band, the contact time between the bottle cap 100 and the elastic band can be increased during the revolution of the bottle cap 100, so as to better ensure that the lug 102 can abut against the first positioning portion 322 or the second positioning portion 522, thereby achieving accurate orientation.

[0055] Optionally, the first cover rubbing assembly 4 also includes two first opening pieces 42, the first elastic belt 41 is an annular structure, and the two first opening pieces 42 are fixed to the carrier 2 for opening the first elastic belt 41; the second cover rubbing assembly 6 also includes two second opening pieces, the second elastic belt is an annular structure, and the two second opening pieces are fixed to the carrier 2 for opening the second elastic belt. With such a configuration, the structure is simple, and the installation of the first elastic belt 41 and the second elastic belt is convenient. In this embodiment, the first elastic belt 41 is a belt or a rubber ring, and the second elastic belt is a belt or a rubber ring. In addition, the first opening piece 42 and the second opening piece of this embodiment are both rollers. With such a configuration, the first elastic belt 41 or the second elastic belt can move slightly when the bottle cap 100 revolves, reducing the friction between the first elastic belt 41 or the second elastic belt and the bottle cap 100, achieving orientation while making the revolution of the bottle cap 100 smoother.

[0056] Optionally, in this embodiment, the first cap-rubbing assembly 4 further includes a first tensioning wheel 43, which is located in the first elastic band 41 and is connected to the carrier 2 in an adjustable position; the second cap-rubbing assembly 6 further includes a second tensioning wheel, which is located in the second elastic band and is connected to the carrier 2 in an adjustable position. The tensioning wheel can be provided to adjust the tightness of the elastic band to prevent the elastic band from being too loose or too tight to affect the orientation effect on the bottle cap 100.

[0057] Alternatively, if Figure 3 and Figure 8 As shown, the first driving member includes a first rotating shaft 311 and a first transmission wheel 312 fixed to the first rotating shaft 311, the second driving member includes a second rotating shaft 511 and a second transmission wheel 512 fixed to the second rotating shaft 511, the first rotating shaft 311 and the second rotating shaft 511 can both rotate relative to the frame 1, the first transmission wheel 312 and the second transmission wheel 512 are arranged in an up-down staggered manner, the first transmission wheel 312 is provided with a plurality of first gear teeth, the second transmission wheel 512 is provided with a plurality of second gear teeth, each second gear tooth is provided with a pin 5121, and the pin 5121 is meshed with the first gear teeth. Such an arrangement has low manufacturing cost and can reduce wear on the first gear teeth. In other embodiments, the first transmission wheel 312 and the second transmission wheel 512 are located in the same plane, and the first gear teeth are meshed with the second gear teeth. Optionally, the pin 5121 is fixed to the second gear teeth by a countersunk screw.

[0058] Optionally, in the present embodiment, the first rotating shaft 311 and the second rotating shaft 511 are both rotatably connected to the frame 1, and the second gear is configured to mesh with the capping arm 200 of the capping device. The multiple capping arms 200 of the capping device serve as driving force to drive the second transmission wheel 512 to rotate, thereby causing the first transmission wheel 312 to rotate accordingly. This arrangement saves costs and has a better degree of integration. Of course, the first rotating shaft 311 or the second rotating shaft 511 can also be connected to the first transmission wheel 312 and the second transmission wheel 512 to rotate by a motor. Specifically, in the present embodiment, the frame 1 includes a connecting ring 11 and a fixed rod 12, the first rotating shaft 311 and the second rotating shaft 511 are both rotatably connected to the connecting ring 11, the upper end of the fixed rod 12 is fixedly connected to the connecting ring 11, and the lower end of the fixed rod 12 is fixedly connected to the bearing 2.

[0059] The present invention also provides a capping machine, including a lower cap assembly 300 and a bottle cap orientation device, wherein the lower cap assembly 300 is arranged upstream of the bottle cap orientation device. The bottle cap 100 enters the bottle cap orientation device through a channel in the lower cap assembly 300, and then the bottle cap 100 is oriented. In addition, the capping machine also includes a capping device, which includes a connecting disk and a plurality of capping arms 200 distributed along the circumference of the connecting disk. The capping arms 200 are used to press the bottle cap 100 onto the bottle body. When the connecting disk rotates, it can drive the plurality of capping arms 200 to rotate, and then drive the second transmission wheel 512 to rotate. The capping machine of the present invention can prevent the lug 102 of the bottle cap 100 from hitting the positioning block, causing the bottle cap 100 to be stuck, and can achieve accurate positioning of the bottle cap 100 to ensure reliability.

[0060] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A bottle cap orientation device, characterized in that: include: Rack(1), A carrier (2) fixed to the frame (1) and used for carrying the bottle cap (100); The first cap separation mechanism comprises a first dial assembly (3) and a first cap rolling assembly (4). The first dial assembly (3) comprises a first driving member, a first dial (32) and a first protective cover member (33). The first driving member is arranged on the frame (1) and is used to drive the first dial (32) to rotate. The first dial (32) is provided with a plurality of first bayonet holes (321) at intervals. Each of the first bayonet holes (321) is provided with a first positioning portion (322). The first protective cover member (33) is arranged outside the first dial (32). The bottle cap (100) can be inserted into the first bayonet hole (321) and contact the first protective cover member (33). The first cap rolling assembly (4) can elastically abut against the bottle cap (100) to make the bottle cap (100) rotate, so that the side wall of the lug (102) of the bottle cap (100) abuts against the first positioning portion (322). A second cover separation mechanism is arranged downstream of the first cover separation mechanism, the second cover separation mechanism comprises a second dial assembly (5) and a second cover rubbing assembly (6), the second dial assembly (5) comprises a second driving member, a second dial (52) and a second protective cover member (53), the second driving member is arranged on the frame (1) and is used to drive the second dial (52) to rotate in a direction opposite to the rotation direction of the first dial (32); the second dial (52) is provided with a plurality of second bayonet holes (521) at intervals, each of the second A second positioning portion (522) is provided at the second bayonet (521), and the second protective cover member (53) is arranged outside the second dial (52). After passing through the first bayonet (321), the bottle cap (100) can be inserted into the second bayonet (521) and contact the second protective cover member (53); the second cap-rubbing assembly (6) can elastically abut against the bottle cap (100) to make the bottle cap (100) rotate so that the side wall of the lug (102) abuts against the second positioning portion (522).

2. The bottle cap orientation device according to claim 1, characterized in that: When the cover body (101) of the bottle cap (100) is inserted into the first snap-in opening (321) and contacts the first protective cover member (33), a gap is provided between the cover body (101) and the first snap-in opening (321), and the gap is smaller than the thickness of the lug (102).

3. The bottle cap orientation device according to claim 1, characterized in that: When one end of the bottle cap (100) is inserted into the first bayonet (321) and the other end of the bottle cap (100) is inserted into the second bayonet (521), the first positioning portion (322) and the second positioning portion (522) are distributed along the same circumference, and the arc distance between the first positioning portion (322) and the second positioning portion (522) is greater than the width of the lug (102).

4. The bottle cap orienting device according to claim 1, characterized in that: The first cap-rubbing component (4) comprises a first elastic band (41), the first elastic band (41) is arranged outside the first dial (32), and the first elastic band (41) can elastically abut against the bottle cap (100); and / or, The second cap-rubbing component (6) comprises a second elastic band, the second elastic band is arranged around the outside of the second dial (52), and the second elastic band can elastically abut against the bottle cap (100).

5. The bottle cap orientation device according to claim 4, characterized in that: The first cover rubbing assembly (4) further comprises two first opening members (42), the first elastic band (41) is an annular structure, the two first opening members (42) are fixed to the supporting member (2) and are used to open the first elastic band (41); the second cover rubbing assembly (6) further comprises two second opening members, the second elastic band is an annular structure, the two second opening members are fixed to the supporting member (2) and are used to open the second elastic band.

6. The bottle cap orienting device according to claim 5, characterized in that: The first spreading member (42) and the second spreading member are both rollers.

7. The bottle cap orienting device according to claim 1, characterized in that: The first driving member comprises a first rotating shaft (311) and a first transmission wheel (312) fixed to the first rotating shaft (311); the second driving member comprises a second rotating shaft (511) and a second transmission wheel (512) fixed to the second rotating shaft (511); the first rotating shaft (311) and the second rotating shaft (511) are both rotatable relative to the frame (1); the first transmission wheel (312) and the second transmission wheel (512) are arranged in an up-down staggered manner; the first transmission wheel (312) is provided with a plurality of first gear teeth; the second transmission wheel (512) is provided with a plurality of second gear teeth; each of the second gear teeth is provided with a pin shaft (5121); the pin shaft (5121) is meshed with the first gear teeth.

8. The bottle cap orienting device according to claim 7, characterized in that: The first rotating shaft (311) and the second rotating shaft (511) are both rotatably connected to the frame (1), and the second gear teeth are configured to mesh with the capping arms (200) of the capping device.

9. The bottle cap orienting device according to any one of claims 1 to 8, characterized in that: The bottle cap orientation device further comprises two first cap guide members (7) located upstream of the first cap separation mechanism and two second cap guide members (8) located downstream of the second cap separation mechanism, the two first cap guide members (7) being fixed to the carrier (2) at intervals and forming a first cap guide channel, the first cap guide channel being able to communicate with the first bayonet (321); the two second cap guide members (8) being fixed to the carrier (2) at intervals and forming a second cap guide channel, the second cap guide channel being able to communicate with the second bayonet (521).

10. A capping machine, characterized in that: It comprises a lower cover assembly (300) and a bottle cap orienting device according to any one of claims 1 to 9, wherein the lower cover assembly (300) is arranged upstream of the bottle cap orienting device.

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