Cap sorting device for bottle caps with straws and cap sorting method thereof

Abstract

The present invention relates to the technical field of packaging equipment, and specifically to a cap sorter for bottle caps with straws and a cap sorting method thereof: comprising an inclined cap containing box, bottle caps, a cap dividing plate, a rotary driving mechanism and a supporting plate; the cap dividing plate is installed in the cap containing box and is rotatably supported on the bottom plate of the cap containing box, and the inclined direction is consistent with that of the cap containing box; the rotary driving mechanism is connected to the cap dividing plate, so that the bottle caps entering the cap containing box form a first posture; a plurality of workstation slots are evenly opened on the outer circumference of the cap dividing plate, and the supporting plate is installed at the lower end of the cap containing box, and is used to support the bottle caps in the corresponding workstation slots, so that the bottle caps form a second posture; a step is formed between the end of the supporting plate and the bottom plate of the cap containing box, so that the bottle caps form a third posture; the present invention arranges the disorderly bottle caps entering the cap containing box into the third posture with the straws facing upwards in sequence, which can effectively enhance the cap sorting efficiency and avoid the situation of material jamming and material piling in the workstation slots.

Description

Technical Field

[0001] The invention relates to the technical field of packaging equipment, and in particular to a cap sorting device for bottle caps with straws and a cap sorting method thereof. Background Art

[0002] In the production and packaging process of bottled products equipped with pump caps or gun caps, it is necessary to first adjust the posture of the pump caps or gun caps and other bottle caps with straws so that they can be tightened on the bottle mouth under the grip of the clamp according to the set posture. The existing cap sorting process for pump caps or gun caps and other bottle caps with straws mainly adopts manual cap sorting, standard assembly mold to convey the bottle caps and other means to sort and transport the bottle caps. In this process, since manual assistance is required, the cap sorting process will result in low efficiency, increased production costs for enterprises, and easy wear of the bottle caps.

[0003] In order to solve the problems of low efficiency, increased production costs for enterprises, and easy wear of bottle caps mentioned above, the applicant has previously applied for a Chinese patent with application number CN201721371794.8 and patent name "cap sorter". In this patent, the upper surface of the turntable is set to be conical, the outer periphery of the turntable is circular, and the surface where the circle is located is a horizontal plane. A plurality of cap sorting units are set on the outer periphery of the outer disk. The bottle caps that fall onto the turntable slide down along the conical surface under the centrifugal effect of the rotation of the turntable and the action of their own gravity, and fall into the cap sorting unit with the cap head facing down. After the turntable rotates to the position of the discharging mechanism, it enters the discharging mechanism with the cap head facing down and is discharged. However, since the cap sorter of this structure directly adjusts the bottle caps with straws such as pump caps or gun caps from a messy state to a cap head facing down, there will be piles and jams in the cap sorting unit, resulting in low cap sorting efficiency, low enterprise production efficiency, and high costs.

[0004] Therefore, it is urgent to design a new cap sorter for bottle caps with straws to solve the problems of low cap sorting efficiency, material piling and material jamming in the cap sorting unit, so that the bottle caps can be stably discharged according to the set posture, thereby improving the production efficiency of subsequent processes. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a cap sorter for bottle caps with straws. Through reasonable structural settings, the present invention first sorts the disorderly bottle caps entering the cap receiving box into a posture with the cap heads facing the lower end, then sorts them into a lying state, and finally sorts them into a posture with the cap heads facing downward, thereby stably enhancing the cap sorting efficiency of the cap receiving box and effectively avoiding the occurrence of material jamming and piling in the work station slot.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A cap sorter for bottle caps with straws, comprising a cap container with an adjustable tilt angle and bottle caps, wherein the cap container is divided into a lower end and an upper end according to the tilt height, and the bottle caps include cap heads and straws connected to the cap heads; the cap sorter also comprises:

[0008] A feed port, arranged on the top cover of the cap container, for feeding bottle caps into the cap container;

[0009] A discharge port is provided on the side wall of the cap container, and is used to discharge the bottle caps arranged into a set posture;

[0010] A cap-separating plate is located in the cap-containing box and is rotatably supported on the bottom plate of the cap-containing box. Its tilting direction is consistent with that of the cap-containing box, and a plurality of station slots for accommodating and limiting bottle caps are evenly arranged on its outer circumference;

[0011] A rotation drive mechanism, connected to the sub-covering plate, and used for driving the sub-covering plate to rotate;

[0012] A support plate is arranged along the inner circumferential wall of the lower end of the cap containing box, and is used to support the cap head in the corresponding work station slot so that the bottle cap is in a lying position. A step is formed between the end of the support plate and the bottom plate of the cap containing box, and the step is used to make the bottle cap lying flat in the work station slot change to a position with the straw facing upward after passing through the step.

[0013] In the above scheme, the cap containing box is tilted so that the bottle caps entering from the feed port fall onto the cap dividing plate. Due to the rotation of the cap dividing plate and the characteristics of the light straw of the bottle cap and the heavy cap head, the bottle cap rolls toward the working slot at the lower end under the centrifugal force of the rotating cap dividing plate, and in the process of rolling, the cap head is formed to face the lower end. The tilt degree of the cap containing box is affected by many factors such as the size, material, weight, length of the straw, and the installation position of the end of the support plate of the bottle cap, and its tilt angle needs to be adjusted according to actual application. When the cap head of a bottle cap enters the working slot, it will be restricted by the working slot, and under the action of the support plate, the bottle cap will be formed to lie flat. If it does not reach the lying flat state, Bottle caps in a shaped manner, such as a bottle cap placed horizontally on the work station slot, or a bottle cap head and a bottle cap straw are in the same work station slot, or a bottle cap straw enters the work station slot, etc., will roll down or slide to the lower end again as the cap-distributing plate rotates toward the upper end due to the lack of limitation of the work station slot; and bottle caps lying flat by the work station slot will, during the rotation toward the upper end, fall toward the bottom plate of the cap container due to the step formed by the disappearance of the support plate and the characteristics that the bottle cap straw is light but the cap head is heavy, forming a posture with the cap head downward and the straw upward, and continue to move in this posture until they are discharged from the cap container from the discharge port.

[0014] Furthermore, there are many arrangements for limiting the position of the bottle caps and preventing the bottle caps from slipping out during the rotation process, such as evenly installing brackets on the outer circumference of the cap-dividing plate so that grooves for accommodating the bottle caps are formed between any two adjacent brackets, or evenly opening rectangular workstation grooves on the outer circumference of the cap-dividing plate. However, compared with the design of this scheme, firstly, the grooves formed by the brackets increase the manufacturing cost of the cap-containing box, and after the specifications of the bottle caps change, the brackets and the cap-dividing plate need to be replaced together, which increases the production cost of the equipment; secondly, although the rectangular workstation grooves are opened, the bottle caps can be transformed from the first posture to the second posture and then to the third posture, it is not easy to smoothly discharge the bottle caps in the third posture from the cap-containing box. Therefore, this scheme adopts the workstation grooves with inclined groove bottoms to achieve the limit and posture control of the bottle caps.

[0015] It can be seen that the above scheme is the core element of bottle cap posture adjustment, but considering the efficiency and output of bottle cap posture adjustment in actual production, it is necessary to increase the amount of bottle caps when putting them in, and also to speed up the rotation speed of the cap separation plate. Therefore, in order to increase the output of bottle caps discharged according to the set posture, and make the bottle caps better form a posture with the cap head facing the lower end and a lying posture, this scheme sets a limit plate and a storage tray to achieve this effect.

[0016] Preferably, the cover containing box further comprises a limiting plate and a placing tray, the limiting plate being arranged along the inner circumferential wall of the lower end portion of the cover containing box and being located above the supporting plate, for limiting the bottle caps so that a large number of the bottle caps slide layer by layer into the working slots therebelow, the end of the limiting plate not exceeding the end of the supporting plate along the rotation direction of the sub-cover tray, the placing tray being fixedly mounted in the cover containing box and fixed in position relative to the cover containing box, the placing tray being coaxially aligned with the sub-cover tray, and the placing tray being located above the sub-cover tray, and the placing tray does not rotate with the sub-cover tray.

[0017] In the above scheme, the placing tray is located above the capping tray, so that the bottle caps thrown in from the feed port will fall onto the placing tray first. Since the placing tray does not rotate with the capping tray and the bottle caps themselves have the characteristics of light straws and heavy cap heads, the bottle caps that fall onto the placing tray will roll or slide on the placing tray due to the inclined cap containing box. During the rolling or sliding process, the bottle caps will not be affected by the accelerated rotation of the capping tray, and will stably form a posture with the cap heads facing the lower end. After sliding to the capping tray at the lower end, they will be affected by the limiting plate and thrown to the working slots at the lower end layer by layer. When a bottle cap enters a working slot, it will be limited by the working slot to stop rolling, and will lie flat under the restriction of the support plate.

[0018] It can be seen that for screw caps on different bottles, the length of the corresponding straws will change as the volume of the bottle changes. Therefore, in order to prevent the cap separating tray from interfering with the lying bottle caps when adjusting the postures of different batches of bottle caps, the installation position of the storage tray is further set.

[0019] Preferably, a groove is provided in the middle portion of the sub-cover plate, the storage plate is placed in the groove, and the upper surface of the storage plate and the upper surface of the sub-cover plate are located in the same plane.

[0020] In the above scheme, since the upper surface of the storage tray and the upper surface of the cover tray are located in the same plane, the straw of the lying bottle cap will not contact the outer wall of the storage tray during the rotation of the cover tray, avoiding affecting the posture stability of the lying bottle cap.

[0021] It can be seen that there are many settings for achieving the position limit of the bottle cap. Combined with the above settings, the position limit of the bottle cap in each posture is achieved by limiting the distance.

[0022] Preferably, the cap head includes a cap bottom and a cap pressing part, the inner circumferential wall of the cap containing box is a smooth surface, a gap is left between the outer periphery of the sub-cap plate and the inner circumferential wall of the cap containing box, the width of the gap is smaller than the diameter of the cap bottom and larger than the diameter of the cap pressing part, the width of the work station groove is not smaller than the diameter of the cap head, and the maximum depth of the groove bottom is not smaller than the radius of the cap head, and when the bottle cap is lying flat with the straw facing upward, the two inner walls of the work station groove are blocked at the outer side of the cap bottom.

[0023] In combination with the above scheme, when the bottle caps slide down to the lower end layer by layer under the action of the limiting plate, due to the weight difference between the inclined cap containing box and the bottle cap heads and the straw, plus the centrifugal force generated by the rotation of the cap dividing plate, the bottle caps are thrown into the working slot with the cap heads facing the lower end. When the cap heads of a single bottle cap enters the working slot, the cap heads will move toward the supporting plate along the inclined slot bottom. Since the width of the working slot is not less than the diameter of the cap heads, and the maximum depth distance of the slot bottom is not less than the radius of the cap heads, the cap heads of a single bottle cap will be limited by the inner walls on both sides of the working slot after entering the working slot, preventing the bottle caps at the lower end from rolling out of the working slot during the rotation toward the upper end. Since the slot bottom is inclined, it is not easy for the bottle caps to move out of the working slot in the opposite direction of their sliding in, so that the bottle caps are limited by the working slot.

[0024] It can be seen from the above scheme that when the bottle cap is supported by the support plate, it will lie flat, and when the bottle cap leaves the support of the support plate, it will form a posture with the straw facing up and the cap head facing down due to the action of the step. In order to make the bottle cap quickly change from a lying flat position to a posture with the straw facing up and the cap head facing down, this scheme makes further optional optimization of the installation position of the support plate.

[0025] Preferably, the bottom of the workstation groove is inclined downward from inside to outside along the radial direction of the sub-cover plate, and the upper surface of the support plate is not higher than the lowest end of the groove bottom.

[0026] Combined with the previous solution, when the upper surface of the support plate is at the same height as the lowest end of the groove bottom, the bottle cap will lie flat; when the upper surface of the support plate is lower than the lowest end of the groove bottom, the bottle cap will form a posture with the straw raised and the cap head tilted downward, so that the center of gravity of the bottle cap is more concentrated on the cap head. When the bottle cap is separated from the support of the support plate, it will be easier to tip toward the bottom plate, forming a posture with the straw facing up and the cap head facing down.

[0027] It can be seen that, in combination with the above-mentioned solutions, in order to prevent the bottle caps from being worn against the inner wall or bottom plate of the cap containing box as much as possible during the transmission process in the cap containing box, the cap separating plate is further optimized so that the bottle caps are not easily worn.

[0028] Preferably, the sub-cover plate is in a "convex" shape, and the side of the sub-cover plate close to the bottom plate is the lower part, and the side away from the bottom plate is the upper part, the work station groove is located in the upper part, and the height of the upper outer peripheral wall is not less than the diameter of the cover head, and the radius difference between the lower part and the upper part is greater than the diameter of the pressure cover part and less than the diameter of the bottom of the cover.

[0029] In combination with the above scheme, of the bottle cap lying flat, only the pressing capping portion will contact the inner peripheral wall of the cover box, and since the inner peripheral wall is an arc surface, the pressing capping portion will not form a complete contact with the inner peripheral wall, and since the inner peripheral wall of the cover box is a smooth surface, the bottle cap lying flat is not easy to wear against the cover box; while the bottle cap with the straw facing up and the cap head facing down, its pressing capping portion will contact the lower part of the sub-lid plate, will move with the rotation of the sub-lid plate, and will not cause wear against the bottom plate of the cover box, because the gap distance is limited, part of the bottom area of ​​the cap will contact the inner peripheral wall of the cover box, but since the cover box is inclined, the sub-lid plate rotates and the inner peripheral wall of the cover box is a smooth surface, the bottle cap will contact the inner peripheral wall of the cover box under the action of centrifugal force, and form a small offset during the rotation of the sub-lid plate, thereby reducing the hard contact with the inner peripheral wall of the cover box and avoiding wear.

[0030] It can be seen that since the height of the cap storage box needs to be longer than the overall length of the bottle caps, there are many settings to reduce the friction of the bottle caps during the delivery process. For example, the storage tray in the above-mentioned scheme has this effect and function. However, the bottle caps need to be piled in the area of ​​the limiting plate to ensure the efficiency and results of the cap sorting of the entire cap storage box. Therefore, in order to prevent the fallen bottle caps from colliding with the bottle caps in the cap storage box during the delivery process, and in order to make the delivered bottle caps further form a posture with the cap heads facing the lower end in advance, the present scheme provides a guide plate to strengthen the adjustment of the bottle cap posture and reduce the violent collision of the bottle caps falling from a high altitude on the bottle caps in the box.

[0031] Preferably, the cover container is further provided with a guide plate located below the feed port, and the guide plate is inclined toward the lower end portion, and the guide plate does not contact the cover disc.

[0032] In the above scheme, when the bottle cap enters the cap containing box from the feed inlet, the bottle cap will slide or roll on the guide plate due to the inclination of the guide plate toward the lower end portion. Since the cap head of the bottle cap is heavy and the straw is light, the cap head of the bottle cap will move downward during the sliding or rolling process, and will continue to slide or roll downward when falling on the storage tray, so that the bottle cap can better form a posture with the cap head facing the lower end portion, and the guide plate cannot contact with the storage tray to avoid conflict between the two, and the gap distance between the two should be larger than the diameter of the bottom of the cap to prevent the bottle cap from being stuck.

[0033] It can be seen that there are many methods and processes for sorting bottle caps with straws. Combining the designs of the above-mentioned schemes, a summary is made: a method for sorting caps includes a feeding process, a cap sorting process and a discharging process that are continuously performed in a single assembly line. The feeding process is to put the bottle caps into the cap container from the feeding port; the cap sorting process is to adjust the bottle caps one by one according to the set postures to make them reach the set postures; the discharging process is to discharge the bottle caps that have reached the set postures from the discharging port;

[0034] The material feeding process, cap sorting process and discharge process include the following stages:

[0035] S1, the bottle caps are put into an inclined cap container, and the bottle caps entering from the feed port form a first posture with the cap heads facing the lower end of the cap container under the action of their own center of gravity;

[0036] S2, under the rotation drive of the cap separation plate, the bottle caps in the first posture enter the station slot under the action of their own gravity and centrifugal force, and are supported by the support plate to form a second posture of lying flat;

[0037] S3, during the process of the bottle caps located on the lower end of the cap separation plate rotating toward the upper end, the bottle caps that have not reached the second posture cannot be limited by the two inner walls of the station groove, and the bottle caps slide or roll back to the lower end during the rotation of the cap separation plate;

[0038] S4, after the bottle caps in the second posture pass through the step, the support plate disappears, and the center of gravity of the bottle cap straws is shifted, and the cap heads are heavy. The cap heads fall toward the bottom plate of the cap container, so that the bottle caps form a third posture with the straws facing upward and the cap heads facing downward;

[0039] S5, the bottle caps in the third posture driven by the cap distributing plate are discharged from the cap containing box in the third posture at the discharging port.

[0040] In combination with the above-mentioned schemes, the present capping method mainly relies on an inclined cap-containing box to transform the bottle cap from the first posture to the second posture, so that in the process of the bottle cap sliding and rolling on the storage tray and the guide plate, the gravity difference between the bottle cap head and the straw forms a posture with the cap head facing the lower end, and under the action of the centrifugal force generated by the rotation of the cap-distributing plate, the bottle cap is further made to enter the station slot with the cap head facing the lower end, forming the second posture; for the bottle cap to transform from the second posture to the third posture, it mainly relies on a cliff-like step for transformation, due to the effect of the support plate and the inclined cap-containing box, when the bottle cap in the second posture is at the upper end, the cap head disappears, causing the cap head to tip toward the bottom plate, forming the third posture with the cap head facing downward and the straw facing upward, and the posture transformation is performed at the upper end to prevent the bottle cap from being affected by the bottle cap in the first posture and the bottle cap that has not reached the second posture and slides to the lower end during the tipping process.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] The present invention utilizes an inclined cap containing box, a weight difference between bottle cap straws and cap heads, a work station slot and a support plate, so that the bottle caps adjust their posture by utilizing the centrifugal force generated by the rotation of the cap dividing plate and the weight difference between their own straws and cap heads, enter the work station slot with the cap heads facing the lower end portion, and form a second posture under the limitation of the support plate; during the process of the bottle caps in the second posture rotating toward the upper end portion, due to the disappearance of the support plate, the bottle caps can be transformed from the second posture to the third posture when passing through the step, and finally be discharged from the cap containing box in the third posture with the cap heads facing downwards and the straws facing upwards; in this automated cap sorting process, bottle caps in disorderly postures are transformed into bottle caps in set postures, the cap sorting efficiency is greatly improved, the production cost of the enterprise is reduced, the efficiency of subsequent work is increased, and at the same time, the bottle caps in the work station slots are effectively prevented from being stuck or stacked. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the overall structure of the container cover box of the present invention;

[0044] Figure 2 It is a schematic diagram of the structure of the bottle cap of the present invention;

[0045] Figure 3 For the present invention Figure 1 Sectional view of KK;

[0046] Figure 4 This is a structural schematic diagram of the present invention, in which the installation position of the storage tray is changed and a guide plate and a limit plate are added;

[0047] Figure 5 For the present invention Figure 4 Enlarged view of the middle L part;

[0048] Figure 6For the present invention Figure 4 Enlarged view of the middle M part;

[0049] Figure 7 It is a schematic diagram of the overall structure of the cover container of the present invention after removing the top cover;

[0050] Figure 8 It is a schematic diagram of the posture of the bottle cap of the discharge port of the present invention;

[0051] Fig. 9 For the present invention Figure 8 Enlarged view of part N.

[0052] In the figure: 1. cover container; 11. top cover; 12. side wall; 13. bottom plate; 2. bottle cap; 21. cover head; 22. straw; 3. feed inlet; 4. discharge outlet; 5. cover plate; 51. work slot; 52. groove; 6. rotary drive mechanism; 7. support plate; 8. step; 9. limit plate; 10. storage tray; a. upper end; b. lower end; c. cover bottom; d. cover pressing part; e. gap; f. slot bottom; g. guide plate; h. first posture; i. second posture; j. third posture. DETAILED DESCRIPTION

[0053] The technical solution of the present invention will be described in detail below through the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Compared with the implementation scheme in the present invention, all other solutions obtained by relevant personnel in this field without making creative work are within the scope of protection of the present invention.

[0054] Embodiment 1:

[0055] The application number for comparison is CN201721371794.8, and the patent name is a Chinese patent for a cap sorter;

[0056] As an embodiment of the present invention, refer to Figure 1 , Figure 2 , Figure 3 and Figure 7 In order to enable the bottle caps 2 with straws 22 to be stably and efficiently transformed from a disorderly posture to a set posture, the present solution sets the cap container 1 to be designed with an adjustable tilt angle, and the tilt angle is adjusted according to factors such as the size, weight, and material of the bottle caps 2, so that the bottle caps 2 entering the cap container 1 can be more concentrated at the lower end b of the cap container 1, and the bottle caps 2 that have reached the set posture will not affect each other with the bottle caps 2 at the lower end b when they are at the upper end a of the cap container 1.

[0057] The bottle caps 2 include a cap head 21 and a straw 22 connected to the cap head 21. The feed port 3 is provided on the top cover 11 of the cap container 1 and is used to put the bottle caps 2 into the cap container 1. At this time, the bottle caps 2 enter the cap container 1 in a disorderly manner.

[0058] A discharge port 4 is provided on the side wall 12 of the cap container 1 and is used to discharge the bottle caps 2 arranged in a set posture;

[0059] The cap separation plate 5 is located in the cap containing box 1 and is rotatably supported on the bottom plate 13 of the cap containing box 1. Its tilting direction is consistent with that of the cap containing box 1. A plurality of station grooves 51 that cooperate with the bottle caps 2 are evenly arranged on its outer circumference. The bottle caps 2 that enter the station grooves 51 will be accommodated and restricted by the station grooves 51.

[0060] The rotary drive mechanism 6 is connected to the cap separation plate 5 and is used to drive the cap separation plate 5 to rotate so that the bottle caps 2 are better thrown to the edge of the cap receiving box 1, and in this process, the cap heads 21 are formed to face the lower end portion b, so that the cap heads 21 enter the station slots 51;

[0061] The support plate 7 is arranged along the inner peripheral wall of the lower end b of the cap container 1, and is used to support the cap head 21 in the corresponding station slot 51, so that the bottle cap 2 is in a lying state, and a step 8 is formed between the end of the support plate 7 and the bottom plate 13 of the cap container 1, and the step 8 is used to make the bottle cap 2 in the lying state in the station slot 51 change to a posture with the straw 22 facing up and the cap head 21 facing down when the bottle cap 2 follows the cap separation plate 5 to rotate to the upper end a, due to the step 8 formed by the disappearance of the support plate 7, and the bottle cap 2 in the lying state is discharged from the cap container 1 at the discharge port 4 in this posture;

[0062] It is worth noting that Figure 7 For example, if the discharge port 4 is located on the left side of the cap containing box 1, the cap dividing plate 5 rotates counterclockwise, and at this time the step 8 for adjusting the posture of the bottle caps 2 is located on the right side of the cap containing box 1; conversely, if the discharge port 4 is located on the right side of the cap containing box 1, the cap dividing plate 5 rotates clockwise, and at this time the step 8 for adjusting the posture of the bottle caps 2 is located on the left side of the cap containing box 1.

[0063] Embodiment 2:

[0064] As an embodiment of the present invention, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4In combination with the first embodiment, when enterprises and other production units have high requirements on the efficiency and output of cap sorting, the bottle caps 2 cannot be completely stacked on the workstation slots 51 at the lower end portion b to avoid that no bottle caps 2 can form a lying state. The cap container 1 also includes a limiting plate 9 and a storage tray 10. The storage tray 10 is fixedly installed in the cap container 1 and fixed relative to the position of the cap container 1. The storage tray 10 is coaxially aligned with the cap separation tray 5, and the storage tray 10 is located above the cap separation tray 5. The storage tray 10 does not rotate with the cap separation tray 5, so that the bottle caps 2 put into the cap container 1 from the feed port 3 will first slide or roll on the stationary storage tray 10. Since the cap container 1 is inclined, the bottle caps 2 will slide or roll when The cap head 21 is formed to face the lower end portion b, and when it slides or rolls to contact the cap disc 5 at the lower end portion b, it will be thrown to the working groove 51 area of ​​the lower end portion b by the centrifugal force of the rotating cap disc 5; the limiting plate 9 is arranged along the inner peripheral wall of the lower end portion b of the cap containing box 1, and is located above the supporting plate 7, so that the bottle caps 2 cannot be directly stacked in the working groove 51 area of ​​the lower end portion b, and the limiting plate 9 is used for the bottle caps 2 to slide layer by layer into the working groove 51 therebelow, so that the bottle caps 2 can be better formed into a lying flat shape, and the end of the limiting plate 9 does not exceed the end of the supporting plate 7 along the rotation direction of the cap disc 5, so as to avoid the limiting plate 9 interfering with the bottle caps 2 in the lying flat posture to transform into a posture with the straw 22 facing upward.

[0065] Embodiment three:

[0066] As an embodiment of the present invention, refer to Figure 1 , Figure 2 and Figure 4 In combination with the second embodiment, considering that the straws 22 of the bottle caps 2 of bottles with different volumes in the same batch are of different lengths, in order to adapt the cap storage box 1 to this feature, a groove 52 is provided in the middle portion of the cap separation plate 5, and the storage plate 10 is placed in the groove 52, and the upper surface of the storage plate 10 and the upper surface of the cap separation plate 5 are located in the same plane, so that the straws 22 of the bottle caps 2 lying flat will not contact with the outer wall of the storage plate 10 in the second embodiment, thereby avoiding damage to the stability of the bottle caps 2 lying flat.

[0067] Embodiment 4:

[0068] As an embodiment of the present invention, refer to Figure 1 , Figure 2 , Figure 5 and Figure 6In combination with the first embodiment, the second embodiment or the third embodiment, considering that the cap head 21 of the bottle cap 2 with the straw 22 includes a cap bottom c and a cap pressing part d, and the position limiting function of the work position groove 51 for the bottle cap 2 in a lying position is mainly the mutual cooperation between the work position groove 51 and the cap bottom c, and for the position limiting function of the bottle cap 2 with the straw 22 facing upward, the work position groove 51 will also support the cap bottom c, and the outer wall of the cap bottom c will contact the inner circumferential wall of the cap container 1. Therefore, in order to reduce the wear between the outer wall of the cap bottom c and the inner circumferential wall of the cap container 1, the inner circumferential wall of the cap container 1 is a smooth surface, and a gap e is left between the outer periphery of the sub-cap plate 5 and the inner circumferential wall of the cap container 1. The width of the gap e is smaller than the diameter of the cap bottom c and larger than the width of the cap pressing part d. The diameter of the work station groove 51 is not less than the diameter of the cap head 21, and the maximum depth of the groove bottom f is not less than the radius of the cap head 21, so that the bottle cap 2 sliding into the work station groove 51 is effectively restricted by the work station groove 51, and the center of gravity of the bottle cap 2 is not within the work station groove 51 and is prevented from being thrown out of the work station groove 51. When the bottle cap 2 is lying flat and the straw 22 is facing upward, the two inner walls of the work station groove 51 are blocked by the outer wall of the cover bottom c, so that the bottle cap 2 with the straw 22 facing upward is prevented from being stuck in the gap e, and the bottle cap 2 in this posture is limited.

[0069] Embodiment five:

[0070] As an embodiment of the present invention, refer to Figure 1 , Figure 2 , Figure 5 and Figure 6 In combination with Embodiment 1, Embodiment 2, Embodiment 3, or Embodiment 4, in order to prevent the bottle cap 2 lying flat on the cover plate 5 from sliding out in the opposite direction along the work station groove 51 during the movement toward the upper end a, and to enable the bottle cap 2 with the cap head 21 facing the lower end b to slide into the work station groove 51 better, the groove bottom f of the work station groove 51 is inclined downward from the inside to the outside along the radial direction of the cover plate 5. In order to enable the bottle cap 2 lying flat to be transformed into a posture with the straw 22 facing upward more quickly, the upper surface of the support plate 7 is not higher than the lowest end of the groove bottom f. When the upper surface of the support plate 7 is lower than the lowest end of the groove bottom f, the bottle cap 2 will form a posture with the straw 22 tilted up, so that the center of gravity of the bottle cap 2 is more concentrated on the cap head 21.

[0071] Embodiment six:

[0072] As an embodiment of the present invention, refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6In combination with the first embodiment, the second embodiment, the third embodiment, the fourth embodiment, or the fifth embodiment, in order to prevent the cover disc 5 from rotating at a high speed so that the surface friction coefficient of the entire inner wall of the cover container 1 increases after long-term use, thereby aggravating the wear of the bottle cap 2, the cover disc 5 is in a "convex" shape, and the side of the cover disc 5 close to the bottom plate 13 is the lower part, and the side away from the bottom plate 13 is the upper part, the station groove 51 is located at the upper part, and the height of the upper outer wall is not greater than the height of the cap head 21, and the radius difference between the lower part and the upper part is greater than the diameter of the capping part d and less than the diameter of the cap bottom c, so that the bottle cap 2 with the straw 22 facing upward has the bottom end of its capping part d in contact with the lower part of the cover disc 5, avoiding contact with the rough inner wall of the cover container 1 and causing wear.

[0073] Embodiment seven:

[0074] As an embodiment of the present invention, refer to Figure 1 , Figure 2 and Figure 4 In combination with the first embodiment or the second embodiment or the third embodiment or the fourth embodiment or the fifth embodiment or the sixth embodiment, in order to prevent the bottle caps 2 put into the cap containing box 1 in large quantities from colliding violently with the bottle caps 2 already piled up in the cap containing box 1, it is necessary to lower the height at which the bottle caps 2 fall from the feed port 3 to the cap separation plate 5, so the cap containing box 1 is also provided with a guide plate g located below the feed port 3, and the guide plate g is inclined toward the lower end portion b, and the guide plate g does not contact the cap separation plate 5, so as to prevent the bottle caps 2 from being stuck between the guide plate g and the cap separation plate 5, and in combination with the setting of the storage tray 10 in the second embodiment or the third embodiment, the bottle caps 2 falling into the cap containing box 1 will obtain two sliding or rolling movements on the guide plate g and the storage tray 10, which is more beneficial for the bottle caps 2 to form a posture with the cap head 21 facing the lower end portion b before contacting the cap separation plate 5.

[0075] In combination with the above embodiments, the configuration method is summarized as follows: Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 :

[0076] A cap sorting method includes a feeding process, a cap sorting process and a discharging process which are continuously performed in a single assembly line. The feeding process is to put the bottle caps 2 into a cap containing box 1 from a feeding port 3; the cap sorting process is to adjust the bottle caps 2 one by one to achieve a set posture; and the discharging process is to discharge the bottle caps 2 that have achieved the set posture from a discharging port 4.

[0077] The material feeding process, cap sorting process and discharge process include the following stages:

[0078] S1, the bottle caps 2 are put into the inclined cap container 1, and the bottle caps 2 entering from the feed port 3 form a first posture h with the cap head 21 facing the lower end b under the action of their own center of gravity;

[0079] S2, under the rotation drive of the cap separation plate 5, the bottle cap 2 in the first posture h enters the station slot 51 under the action of its own gravity and centrifugal force, and is supported by the support plate 7 to form a second posture i of lying flat;

[0080] S3, during the rotation of the bottle cap 2 in the station groove 51 at the lower end b toward the upper end a, the bottle cap 2 that has not reached the second posture i cannot be limited by the two inner walls of the station groove 51, and the bottle cap 2 slides or rolls back to the lower end b during the rotation of the cap separation plate 5;

[0081] S4, after the bottle cap 2 in the second posture i passes the step 8, due to the disappearance of the support plate 7, the cap head 21 of the bottle cap 2 is heavier than the straw 22, and the cap head 21 is tilted toward the bottom plate 13 of the cap container 1, so that the bottle cap 2 forms a third posture j with the straw 22 facing upward and the cap head 21 facing downward;

[0082] S5 , the bottle caps 2 in the third posture j driven by the cap distributing plate 5 are discharged from the cap containing box 1 at the discharge port 4 in the third posture j.

[0083] In this cap sorting method, it mainly relies on the inclined cap containing box 1, the difference in gravity of the bottle caps 2 themselves, the mutual cooperation of the single station slots 51 on the single bottle caps 2, the support of the support plate 7 and the cliff-like steps 8, so that the bottle caps 2 are transformed from the first posture h to the second posture i and then to the required third posture j in the process of rotating in the cap containing box 1. In this process, some settings are further optimized according to different environments and different requirements to meet the needs of different requirements. This setting not only improves the cap sorting efficiency, but also avoids the situation of material jamming and piling in the station slots 51, reducing the labor burden of workers.

[0084] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A cap sorter for bottle caps with straws, comprising a cap container (1) with an adjustable tilt angle and bottle caps (2), wherein the cap container (1) is divided into an upper end portion (a) and a lower end portion (b) according to the tilt height, and the bottle caps (2) include a cap head (21) and a straw (22) connected to the cap head (21); characterized in that: The cap sorter also includes: A feed port (3) is provided on the top cover (11) of the cap container (1) and is used for feeding bottle caps (2) into the cap container (1); A discharge port (4) is provided on the side wall (12) of the cap container (1) and is used for discharging the bottle caps (2) arranged in a set posture; A cap separation plate (5) is located in the cap container (1) and is rotatably supported on the bottom plate (13) of the cap container (1). Its tilt direction is consistent with that of the cap container (1). A plurality of station slots (51) for cooperating with the bottle caps (2) are evenly arranged on its periphery. A rotation drive mechanism (6), connected to the sub-covering plate (5), for driving the sub-covering plate (5) to rotate; A support plate (7) is provided along the inner peripheral wall of the lower end portion (b) of the cap container (1) and is used to support the cap head (21) in the corresponding work station slot (51) so that the bottle cap (2) is in a flat position. A step (8) is formed between the end of the support plate and the bottom plate (13) of the cap container (1). The step (8) is used to enable the bottle cap (2) in a flat position in the work station slot (51) to be turned into a position with the straw (22) facing upward after passing through the step (8).

2. The cap sorter for bottle caps with straws according to claim 1, characterized in that: The invention also includes a limiting plate (9), which is arranged along the inner peripheral wall of the lower end portion (b) and is located above the support plate (7), and is used for the bottle caps (2) to slide layer by layer into the working slots (51) below it, and the end of the limiting plate (9) does not exceed the end of the support plate (7) along the rotation direction of the cap separation plate (5).

3. The cap sorter for bottle caps with straws according to claim 1, characterized in that: It also includes a storage tray (10), which is fixedly installed in the cover container (1) and fixed in position relative to the cover container (1). The storage tray (10) is coaxially aligned with the sub-cover tray (5).

4. The cap sorter for bottle caps with straws according to claim 3, characterized in that: A groove (52) is provided in the middle of the sub-covering plate (5), the storage plate (10) is placed in the groove (52), and the upper surface of the storage plate (10) and the upper surface of the sub-covering plate (5) are located in the same plane.

5. The cap sorter for bottle caps with straws according to claim 1, characterized in that: The cap head (21) comprises a cap bottom (c) and a pressure cap portion (d); the inner peripheral wall of the cap container (1) is a smooth surface; a gap (e) is left between the outer periphery of the cap plate (5) and the inner peripheral wall of the cap container (1); the width of the gap (e) is smaller than the diameter of the cap bottom (c); the width of the work station groove (51) is not smaller than the diameter of the cap head (21); and the maximum depth of the groove bottom (f) of the work station groove (51) is not smaller than the radius of the cap head (21); when the bottle cap (2) is in a flat position and the straw (22) is facing upward, both inner walls of the work station groove (51) are blocked on the outer side of the cap bottom (c).

6. The cap sorter for bottle caps with straws according to claim 1, characterized in that: The groove bottom (f) of the work station groove (51) is inclined downward from the inside to the outside along the radial direction of the sub-cover plate (5), and the upper surface of the support plate (7) is not higher than the lowest end of the groove bottom (f).

7. The cap sorter for bottle caps with straws according to claim 1, characterized in that: The cover container (1) is further provided with a guide plate (g) located below the feed port (3), and the guide plate (g) is inclined toward the lower end portion (b), and the guide plate (g) does not contact the cover disc (5).

8. A cap sorting method, characterized in that: The cap sorting device for bottle caps with straws according to any one of claims 1 to 7 is characterized in that it includes a feeding process, a cap sorting process and a discharge process that are continuously performed in a single assembly line, wherein the feeding process is to put the bottle caps (2) into the cap container (1) from the feeding port (3); the cap sorting process is to adjust the bottle caps (2) according to a set posture to make them reach the set posture; and the discharge process is to discharge the bottle caps (2) that have reached the set posture from the discharge port (4); The blanking process, cap sorting process and discharge process include the following stages: S1, the bottle cap (2) is put into the inclined cap container (1), and the bottle cap (2) entering from the feed port (3) forms a first posture (h) with the cap head (21) facing the lower end (b) under the action of its own center of gravity; S2, under the rotational drive of the cap separation plate (5), the bottle cap (2) in the first posture (h) enters the working slot (51) under the action of its own gravity and centrifugal force, and is supported by the support plate (7) to form a second posture (i) of lying flat; S3, during the rotation of the bottle cap (2) located in the working slot (51) at the lower end portion (b) toward the upper end portion (a), the bottle cap (2) that has not reached the second posture (i) slides or rolls back to the lower end portion (b) during the rotation of the cap separation plate (5) because the two inner walls of the working slot (51) cannot limit the bottle cap (2); S4, the bottle cap (2) in the second posture (i) follows the work station slot (51) and passes through the step (8), and due to the disappearance of the support plate (7), the bottle cap (2) is tilted toward the bottom plate (13) under the center of gravity offset in which the cap head (21) is heavy and the straw (22) is light, so that the bottle cap (2) forms a third posture (j) with the straw (22) facing upward and the cap head (21) facing downward; S5, the bottle caps (2) in the third posture (j) driven by the cap distributing plate (5) are discharged from the cap container (1) in the third posture (j) at the discharge port (4).

9. The cap sorting method according to claim 8, characterized in that: In stage S2, when the bottle cap (2) is in the second posture (i), the straw (22) tilts upward from the end close to the cap head (21) to the end away from the cap head (21).

10. The cap sorting method according to claim 8, characterized in that: In stage S2, a single bottle cap (2) and a single workstation slot (51) cooperate with each other to form a position limit for the bottle cap (2).

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