A bottle cap orienting device and capping machine

Abstract

The present application belongs to the technical field of filling machines, and discloses a bottle cap orienting device and a capping machine. The bottle cap orienting device comprises a rack, a bearing part, a first cap separating mechanism and a second cap separating mechanism. The bearing part is fixed to the rack and is used for bearing the bottle cap. The first cap separating mechanism comprises a first dial assembly and a first cap twisting assembly. The first dial assembly comprises a first driving part, a first dial and a first cap protecting part. The first dial is provided with a plurality of first clamping holes at intervals. Each first clamping hole is provided with a first positioning part. The second cap separating mechanism is arranged downstream of the first cap separating mechanism. The second cap separating mechanism comprises a second dial assembly and a second cap twisting assembly. The second dial assembly comprises a second driving part, a second dial and a second cap protecting part. The second dial is provided with a plurality of second clamping holes at intervals. Each second clamping hole is provided with a second positioning part. The present application can avoid the situation that the lugs of the bottle cap are on the positioning block, which causes the bottle cap to be stuck. Moreover, the present application can realize accurate positioning of the bottle cap and ensure reliability.

Description

Technical Field

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

[0002] For packaging containers with handles, such as some plastic oil and soy sauce bottles, flip-top caps require the cap opening to be oriented opposite to the grip to facilitate pouring and provide a better user experience. These caps require precise positioning during installation, ensuring the cap opening is oriented correctly before the cap can be grasped and installed. Therefore, a cap orientation device is required to ensure proper orientation.

[0003] In patent application publication number CN110844565A, bottle caps are separated by a separation plate, and a guide plate is arranged on the periphery of the separation plate and contacts the bottle caps to guide the bottle caps. During the separation process, the lugs of the bottle caps are brought into contact with the positioning blocks by the rotation of a plurality of planetary turntables, thereby achieving orientation of the bottle caps. However, when the bottle caps enter the separation plate, there is a possibility that the lugs of the bottle caps may hit the positioning blocks of the separation plate, causing the bottle caps to become stuck and resulting in the bottle caps being 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 frictional resistance of the guide plate to the bottle caps may cause the bottle caps to rotate out of sync with the planetary turntable, making it impossible for the bottle caps to rotate a sufficient angle and abut against the positioning blocks, resulting in the device having 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 orienting 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 orienting device is provided, comprising:

[0008] frame,

[0009] A carrier, fixed to the frame, for carrying bottle caps;

[0010] The first capping mechanism includes a first dial assembly and a first capping assembly, wherein the first dial assembly includes a first driving member, a first dial, and a first protective cover member, wherein the first driving member is disposed 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 which is provided with a first positioning portion; the first protective cover member is disposed around the first dial, and the bottle cap can be engaged with the first bayonet holes and contacted with the first protective cover member; the first capping assembly can elastically abut against the bottle cap, causing the bottle cap to rotate so that the side wall of the lug of the bottle cap abuts against the first positioning portion;

[0011] The second covering mechanism is arranged downstream of the first covering mechanism, the second covering mechanism includes a second dial assembly and a second covering 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 contact the second protective cover member; the second covering 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 a 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 embodiments, the first cap-threading assembly includes a first elastic band, the first elastic band is disposed around the first dial, and the first elastic band can elastically abut against the bottle cap; and / or,

[0015] The second capping assembly includes a second elastic belt, which is arranged around the second dial and can elastically abut against the bottle cap.

[0016] In some possible embodiments, the first rubbing cover 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 rubbing cover 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 upper and lower staggered 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 engaged 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 engage with the capping arms of the capping device.

[0020] In some possible embodiments, the bottle cap orienting device further includes two first cap guide members located upstream of the first cap separating mechanism and two second cap guide members located downstream of the second cap separating mechanism, the two first cap guide members being fixed to the carrier at intervals and forming a first cap guide channel, which can be communicated with the first bayonet; the two second cap guide members being fixed to the carrier at intervals and forming a second cap guide channel, which can be communicated with the second bayonet.

[0021] On the other hand, a capping machine is further 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 carrier, a first cap separating mechanism, and a second cap separating mechanism. When a bottle cap enters the first dial and is separated, the first capping assembly elastically abuts the bottle cap, causing the bottle cap to rotate so that the side wall of the lug abuts the first positioning portion. This provides preliminary orientation for the bottle cap and prevents the lug from hitting the second positioning portion when the bottle cap enters the second dial. After the bottle cap enters the second dial, the second capping assembly elastically abuts the bottle cap, causing the lug to rotate so that the side wall of the lug abuts the second positioning portion. This provides final orientation for subsequent assembly of the bottle cap onto the bottle body. The provision of the first and second capping assemblies enables accurate positioning of the bottle cap, ensuring the reliability of the device. If the lug of the bottle cap hits the first positioning portion when the bottle cap enters the first dial, the provision of the second dial provides a transition, causing the lug to automatically disengage from the first positioning portion when the bottle cap enters the second dial. This prevents the lug from hitting the first positioning portion and causing the bottle cap to become stuck, thus 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 This 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 orienting device, lower cap assembly and capping arm involved in the present invention;

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

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

[0030] Figure 6 This is a partial structural 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 This is a partial structural diagram of the bottle cap orientation device provided by the present invention (when the lug presses 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] Figure 9 It is a structural schematic diagram of the first cover rubbing assembly involved in the present invention.

[0034] In the drawings:

[0035] 1, frame; 11, connecting ring; 12, fixing rod;

[0036] 2, bearing;

[0037] 3, first dial assembly; 311, first rotating shaft; 312, first transmission wheel; 32, first dial; 321, first clamping hole; 322, first positioning part; 33, first cover part; 34, first mounting part;

[0038] 4, first cap twisting assembly; 41, first elastic belt; 42, first opening part; 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 clamping hole; 522, second positioning part; 53, second cover part; 54, second mounting part;

[0040] 6, second cap twisting assembly; 7, first cap guiding part; 8, second cap guiding part;

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

[0042] The application will be further described below in conjunction with the drawings and examples. It can be understood that the specific examples described herein are only used to explain the application, and not to limit the application. In addition, it should be noted that, for the convenience of description, only the parts related to the application are shown in the drawings, not all the structures.

[0043] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

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

[0045] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[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 orienting device for orienting bottle caps 100 to ensure that the bottle caps 100 are output in a set direction. The bottle cap orienting device includes a frame 1, a carrier 2, a first cap separating mechanism, and a second cap separating mechanism. The carrier 2 is fixed to the frame 1 and is used to carry the bottle caps 100. The first cap separating mechanism includes a first dial assembly 3 and a first capping assembly 4. The first dial assembly 3 includes a first driving member, a first dial 32, and a first cover member 33. The first driving member is provided 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, which are provided in a one-to-one correspondence with the plurality of first bayonet holes 321. The first positioning portion 322 is provided 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 around the first dial 32. The bottle cap 100 can be inserted into the first latch 321 and contact the first protective cover member 33. The first capping assembly 4 can elastically abut against the bottle cap 100, causing the bottle cap 100 to 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 rubbing 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 provided 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 around the outside of the second dial 52. After passing through the first latch 321, the bottle cap 100 can be locked into the second latch 521 and contact the second protective cover member 53; the second cap-rolling assembly 6 can elastically abut against the bottle cap 100, causing the bottle cap 100 to rotate 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 and is being separated, the first capping assembly 4 elastically abuts against the bottle cap 100, causing the bottle cap 100 to rotate so that the sidewall of the lug 102 abuts against the first positioning portion 322, thereby performing a preliminary orientation on the bottle cap 100 and preventing the lug 102 from pressing 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, causing the bottle cap 100 to rotate so that the sidewall of the lug 102 abuts against the second positioning portion 522, thereby performing a final orientation on the bottle cap 100 and meeting the requirements for subsequent installation of the bottle cap 100 on the bottle body. By providing the first capping assembly 4 and the second capping assembly 6, accurate positioning of the bottle cap 100 can be achieved, ensuring the reliability of the device. When the bottle cap 100 enters the first dial 32, if the lug 102 of the bottle cap 100 hits 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 hitting 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 latch 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. The clockwise rotation of the first dial 32 drives the bottle cap 100 to orbit on the carrier 2. When the bottle cap 100 passes the first capping assembly 4, it elastically abuts against the first capping assembly 4 and rotates counterclockwise, causing the lug 102 of the bottle cap 100 to abut against the first positioning portion 322, and then the bottle cap 100 stops rotating. When the bottle cap 100 enters the second latch 521 of the second dial 52, the lug 102 of the bottle cap 100 does not contact the second positioning portion 522. The counterclockwise rotation of the second dial 52 drives the bottle cap 100 to orbit on the carrier 2. When the bottle cap 100 passes 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 latch 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 latch 521 of the second dial 52, the lug 102 of the bottle cap 100 automatically disengages from the first positioning portion 322. Then, under the action of the second cap-rolling assembly 6, the bottle cap 100 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.

[0051] In order to enable the bottle cap 100 to smoothly enter the first capping mechanism and to smoothly move the bottle cap 100 out of the second capping mechanism, optionally, in this embodiment, as Figure 4 As shown, the bottle cap orienting device also includes two first cap guide members 7 located upstream of the first cap separating mechanism and two second cap guide members 8 located downstream of the second cap separating 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 communicated with 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 communicated with 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 latch 321 and the other end of the bottle cap 100 is inserted into the second latch 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 interference between the lug 102 and the second positioning portion 522 when the bottle cap 100 enters the second latch 521 from the first latch 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 retaining groove 321 and contacts the first protective cover member 33, a gap exists between the cover body 101 and the first retaining groove 321, which is smaller than the thickness of the lug 102. This arrangement ensures that the bottle cap 100 enters the first retaining groove 321 smoothly while preventing the lug 102 from pressing against the first positioning portion 322, and allows 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 Figure 9 As shown, the first capping assembly 4 includes a first elastic band 41, which is disposed around the outside of the first dial 32. The first elastic band 41 can elastically abut the bottle cap 100, causing the bottle cap 100 to rotate so that the side wall of the lug 102 of the bottle cap 100 abuts the first positioning portion 322. In addition, the second capping assembly 6 includes a second elastic band, which is disposed around the outside of the second dial 52. The second elastic band can elastically abut the bottle cap 100, causing the bottle cap 100 to rotate so that the side wall of the lug 102 of the bottle cap 100 abuts 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, better ensuring that the lug 102 abuts the first positioning portion 322 or the second positioning portion 522, thereby ensuring accurate orientation.

[0055] Optionally, the first cap-rolling assembly 4 further includes two first spreading members 42, wherein the first elastic band 41 is a ring-shaped structure. The two first spreading members 42 are fixed to the carrier 2 and are used to spread the first elastic band 41. The second cap-rolling assembly 6 further includes two second spreading members, wherein the second elastic band is a ring-shaped structure. The two second spreading members are fixed to the carrier 2 and are used to spread the second elastic band. This arrangement provides a simple structure and facilitates installation of the first and second elastic bands 41 and 42. In this embodiment, the first elastic band 41 is a belt or a rubber ring, and the second elastic band is a belt or a rubber ring. Furthermore, both the first and second spreading members 42 of this embodiment are rollers. This arrangement allows the first and second elastic bands 41 and 42 to move slightly during the revolution of the bottle cap 100, reducing friction between the first and second elastic bands 41 and 100, achieving orientation while ensuring smoother revolution of the bottle cap 100.

[0056] Optionally, in this embodiment, the first capping assembly 4 further includes a first tensioning wheel 43, which is located within the first elastic band 41 and is adjustably connected to the carrier 2; the second capping assembly 6 further includes a second tensioning wheel, which is located within the second elastic band and is adjustably connected to the carrier 2. The provision of the tensioning wheel allows the elastic band to be adjusted in tension, preventing the elastic band from being too loose or too tight, thereby affecting the orientation effect of the bottle cap 100.

[0057] Alternatively, as 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, and 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 are both rotatable relative to the frame 1. The first transmission wheel 312 and the second transmission wheel 512 are arranged in an upper and lower offset manner. The first transmission wheel 312 is provided with a plurality of first gear teeth, and 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 meshes with the first gear teeth. Such an arrangement reduces manufacturing costs 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 and the second gear teeth mesh with each other. Optionally, the pin 5121 is fixed to the second gear teeth by a countersunk screw.

[0058] Alternatively, 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 engage 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. Such an arrangement saves costs and has a better degree of integration. Of course, a motor can also be used to drive the first rotating shaft 311 or the second rotating shaft 511 to drive the first transmission wheel 312 and the second transmission wheel 512 to rotate. 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 carrier 2.

[0059] The present invention also provides a capping machine, comprising a lower cap assembly 300 and a bottle cap orienting device, wherein the lower cap assembly 300 is disposed upstream of the bottle cap orienting device. The bottle cap 100 enters the bottle cap orienting device through a channel within the lower cap assembly 300, thereby orienting the bottle cap 100. In addition, the capping machine further comprises a capping device, which comprises a connecting disk and a plurality of capping arms 200 distributed circumferentially along the connecting disk. The capping arms 200 are used to press the bottle cap 100 against the bottle body. When the connecting disk rotates, it can drive the plurality of capping arms 200 to rotate, thereby driving 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 become stuck, and can achieve accurate positioning of the bottle cap 100, ensuring reliability.

[0060] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection 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 capping mechanism comprises a first dial assembly (3) and a first capping assembly (4), wherein the first dial assembly (3) comprises a first driving member, a first dial (32) and a first protective cover member (33), wherein the first driving member is arranged on the frame (1) and is used for driving 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); the first protective cover member (33) is arranged outside the first dial (32), and the bottle cap (100) can be inserted into the first bayonet hole (321) and contact the first protective cover member (33); the first capping assembly (4) 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); The 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 A second positioning portion (522) is provided at each 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 clamped into the second bayonet (521) and contact the second protective cover member (53); the second cap assembly (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); 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), a gap exists between the cover body (101) and the first bayonet (321), and the gap is smaller than the thickness of the lug (102); When one end of the bottle cap (100) is snapped into the first snap-in opening (321) and the other end of the bottle cap (100) is snapped into the second snap-in opening (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).

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

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

4. The bottle cap orientation device according to claim 3, characterized in that: The first opening member (42) and the second opening member are both rollers.

5. The bottle cap orientation 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 upper and lower 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 engaged with the first gear teeth.

6. The bottle cap orienting device according to claim 5, 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 engage with the capping arms (200) of the capping device.

7. The bottle cap orienting device according to any one of claims 1 to 6, 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).

8. 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 7, wherein the lower cover assembly (300) is arranged upstream of the bottle cap orienting device.

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