A bottle cap anti-rotation clamping structure and a rotary thick beverage filling machine

Abstract

The application discloses a bottle cap anti-rotation clamping structure, which comprises a fixed plate and a clamping block mounted on the fixed plate, a clamping hole is arranged in the clamping block, the clamping hole is composed of an upper circular hole, a middle circular cone hole and a lower circular hole arranged in sequence from top to bottom, a clamping spring with a bottle cap accommodating cavity is movably arranged in the clamping hole from above, and the outer contour of the clamping spring is sequentially an upper cylinder matched with the upper circular hole, a middle circular cone matched with the middle circular cone hole and a lower cylinder matched with the lower circular hole from top to bottom; and a plurality of notches are formed downward in the top surface of the clamping spring. The bottle cap anti-rotation clamping structure is simple in structure, convenient to manufacture and process, low in use and maintenance cost, convenient to use, and difficult to damage the bottle cap during clamping. The application further discloses a rotary thick beverage filling machine, which applies the bottle cap anti-rotation clamping structure and has the advantages of the bottle cap anti-rotation clamping structure.

Description

Technical Field

[0001] This invention relates to the field of beverage filling technology, and in particular to a bottle cap anti-rotation clamping structure and a rotary thick beverage filling machine. Background Technology

[0002] In the beverage market, to ensure the taste and nutritional value of mixed drinks, a bottle cap with a separate, sealed cavity has emerged. The principle is to fill the sealed cavity with basic ingredients such as concentrates, probiotics, and honey to preserve their freshness. The beverage bottle containing the cap holds purified water or a base solution for mixing or dissolving the basic ingredients. Before drinking, the bottle cap is rotated to open the switch at the bottom, revealing the sealed cavity and allowing the basic ingredients to fall into the bottle. After shaking thoroughly, it is ready to drink.

[0003] This type of bottle cap has an internal threaded hole at the bottom that can be screwed tightly onto the beverage bottle, and a filling port at the top that communicates with a sealed cavity. An external threaded section is provided at the filling port. The base material is put into the sealed cavity through the filling port, and then the upper screw cap is screwed tightly onto the external threaded section to seal the sealed cavity.

[0004] The manual filling and screwing of the top cap for basic raw materials presents several problems: first, the filling volume cannot be accurately guaranteed; second, filling losses depend entirely on the worker's skill level, easily leading to spillage of the basic raw material, which not only contaminates the working environment but also the external threads on the cap; and third, work efficiency is low and labor costs are high. Therefore, the filling and screwing of the top cap for basic raw materials is trending towards automation. However, because the cap itself is cylindrical and lacks the lip found on beverage bottles, it cannot be clamped using a pin against the lip as is the case with beverage bottles. Therefore, it is necessary to develop a cap anti-rotation clamping structure for clamping caps with this structure and a rotary thick beverage filling machine suitable for filling basic raw materials in viscous liquid forms. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the technical problem to be solved by this invention is to provide a bottle cap anti-rotation clamping structure that is simple in structure, easy to use, reliable in clamping, and does not easily damage the bottle cap.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a bottle cap anti-rotation clamping structure includes: a fixing plate, on which a through mounting hole is provided, a clamping block is fixedly installed in the mounting hole, and a clamping hole is provided in the clamping block. The clamping hole is composed of an upper circular hole, a middle conical hole, and a lower circular hole arranged sequentially from top to bottom. The upper circular hole, the middle conical hole, and the lower circular hole are coaxial. The upper diameter of the middle conical hole is smaller than the lower diameter of the middle conical hole. The upper circular hole and the upper end of the middle conical hole are smoothly connected by an arc, and the lower circular hole and the lower end of the middle conical hole are smoothly connected by an arc. The clamping spring is inserted into the clamping hole from above. A bottle cap receiving cavity, matching the outer contour of the bottle cap, is formed on the top surface of the clamping spring. The outer contour of the clamping spring, from top to bottom, consists of: an upper cylinder matching the upper circular hole, a middle cone matching the middle conical hole, and a lower cylinder matching the lower circular hole. Several slots are formed on the top surface of the clamping spring, evenly spaced around its axis, with the bottom of each slot located on the lower cylinder. Each slot penetrates the outer wall of the clamping spring and the inner wall of the bottle cap receiving cavity, forming spring claws evenly spaced around the axis of the clamping spring. After the bottle cap is placed in the bottle cap receiving cavity, the clamping spring is pushed upwards, forcing the spring claws to move inwards and tighten, thus clamping the bottle cap.

[0007] Furthermore, in the aforementioned bottle cap anti-rotation clamping structure, a guide angle is cut between the bottom surface of the clamping spring and the outer wall of the clamping spring; the groove wall of the slot is smoothly connected to the inner wall of the bottle cap receiving cavity by an arc, and the groove wall of the slot is smoothly connected to the outer wall of the clamping spring by an arc; a rust-proof layer is provided on the surface of the clamping spring.

[0008] Furthermore, in the aforementioned bottle cap anti-rotation clamping structure, the fixing structure in which the clamping block is fixed in the mounting hole is as follows: an outwardly protruding protrusion is provided on the clamping block, and the mounting holes are arranged from top to bottom as an upper mounting hole and a lower mounting hole. The diameter of the upper mounting hole is larger than the diameter of the lower mounting hole, and a support platform for the protrusion is formed between the upper mounting hole and the lower mounting hole. A cover plate is fitted on the clamping block, and the cover plate is fixedly connected to the top surface of the fixing plate to restrict the protrusion in the upper mounting hole.

[0009] A traditional rotary thick beverage filling machine typically includes: a clamping base, a rotary beverage cylinder, a base fixed to the machine base, and a mounting base fixed to the machine base. The clamping base is mounted on the base via a rotating device, and the clamping base can rotate around its own axis via the rotating device. Several clamping structures are mounted on the clamping base, and each clamping structure is evenly spaced around the axis of the clamping base. The rotary beverage cylinder is fixedly mounted on the clamping base, and several plunger-type filling heads are evenly spaced circumferentially on the outer wall of the rotary beverage cylinder. The beverage inlet of each plunger-type filling head communicates with the inner cavity of the rotary beverage cylinder, and each plunger-type filling head is associated with a specific clamping structure. Correspondingly, a mounting bracket is fixedly mounted on the mounting base, and a first upper annular end face cam and a second upper annular end face cam are fixedly mounted on the mounting bracket; each plunger-type filling head has a connecting rod on its plunger, and an upper roller is mounted on the connecting rod. The upper roller rolls and clamps between the first upper annular end face cam and the second upper annular end face cam. At this time, the annular gap between the first upper annular end face cam and the second upper annular end face cam is the movement area of ​​the upper roller; a valve opening mechanism for opening the plunger-type filling head is provided on the mounting base; a valve closing mechanism for closing the plunger-type filling head is provided on the mounting base.

[0010] The rotary thick beverage filling machine of this invention applies the aforementioned bottle cap anti-rotation clamping structure to a traditional rotary thick beverage filling machine. The bottle cap anti-rotation clamping structure is fixed to the clamping base by a fixing plate. A first lower annular end face cam and a second lower annular end face cam are fixedly installed on the mounting base. The bottom of the clamping spring in the bottle cap anti-rotation clamping structure is fixedly connected to a connecting shaft. A lower roller is installed at the bottom of the connecting shaft. The lower roller rolls and clamps between the first lower annular end face cam and the second lower annular end face cam. At this time, the annular gap between the first lower annular end face cam and the second lower annular end face cam is the movement area of ​​the lower roller. A guide sleeve is movably fitted on the connecting shaft. A support plate is fixedly installed on the guide sleeve. The support plate is fixed to the clamping base.

[0011] Furthermore, in the aforementioned rotary thick beverage filling machine, the plunger-type filling head includes: an upper housing, in which a plunger is movably inserted; a long groove is provided on the side wall of the upper housing, and a connecting rod fixed to the plunger passes through the long groove and extends out of the upper housing; at least one sealing groove is provided on the plunger, and a sealing ring is embedded in each sealing groove to seal against the cavity wall of the upper housing, and the sealing ring is always located below the long groove when the plunger moves up and down; A lower housing is installed at the bottom of the upper housing. The lower housing has a vertical cavity and a horizontal cavity, which penetrate vertically through each other. A limit groove is formed inward at the outer end of the horizontal cavity, and a limit cover is fixedly installed on the outer end face of the lower housing. The valve stem is inserted into the horizontal cavity, dividing the vertical cavity into an upper vertical cavity and a lower vertical cavity. The upper vertical cavity communicates with the cavity of the upper housing located below the plunger. A protruding limit shoulder is provided on the valve stem for limiting the valve position. The shoulder is located in the limiting groove. The outer end of the valve stem passes through the through hole on the limiting cover and extends out of the limiting cover. A spring is fitted on the valve stem. One end of the spring presses against the inner wall of the limiting cover, and the other end of the spring presses against the limiting shoulder, so that the limiting shoulder abuts against the limiting groove. At this time, if the valve stem is not subjected to external force, the valve stem will maintain its current state under the elastic force of the spring and will not rotate. The valve stem will only rotate when it is subjected to external rotational force, which will cause the valve to switch between opening and closing.

[0012] A first through hole is provided on the inner end face of the valve stem, and an oblique hole is provided on the outer wall of the valve stem. The oblique hole is connected to the first through hole. The oblique hole and the first through hole together form the beverage inlet of the plunger-type filling head. When the valve stem is rotated to a certain set angle, the beverage inlet is connected to the upper vertical cavity. A connecting through hole is provided on the outer wall of the valve stem, which can connect the upper vertical cavity and the lower vertical cavity when the valve stem is rotated to a certain set angle. The connecting through hole is not connected to the beverage inlet, and the beverage inlet and the connecting through hole cannot be connected to the upper vertical cavity at the same time. An injection head with a first check valve is installed at the bottom of the lower housing; The valve opening mechanism includes: a valve opening cylinder, which is fixed on the machine base; a valve opening roller is installed on the extension rod of the valve opening cylinder; a horn plate is fixedly installed on the valve rod; when the extension rod of the valve opening cylinder extends outward by a set distance, the position of the valve opening roller causes the horn plate on the plunger-type filling head that passes through the valve opening roller to rotate to the connecting through hole to connect the upper vertical cavity and the lower vertical cavity. The structure of the valve closing mechanism includes: a valve closing roller is fixedly installed on the machine base, and the position of the valve closing roller is such that the horn plate on the plunger-type filling head that passes through the valve closing roller rotates to the beverage suction port and communicates with the upper vertical cavity.

[0013] Furthermore, in the aforementioned rotary thick beverage filling machine, a protective sleeve made of PEK material is fixedly fitted onto the valve stem. PEK has high temperature resistance, fatigue resistance, corrosion resistance, and self-lubricating properties, which can ensure smoother switching of the valve stem during valve opening and closing.

[0014] Furthermore, in the aforementioned rotary thick beverage filling machine, the structure of the rotary device includes: a rotary support cylinder fixedly installed on the base, a rotary shaft supported in the inner cavity of the rotary support cylinder by a bearing assembly, the top of the rotary shaft extending out of the rotary support cylinder and fixedly connected to the clamping seat, and the rotary shaft being driven to rotate by a drive motor fixed on the base. The rotating support cylinder is equipped with grease fittings for lubricating the corresponding bearings in the bearing assembly. Each grease fitting is located above its corresponding bearing. The rotating support cylinder also has lubricant outlet connectors for discharging lubricating oil from the corresponding bearings in the bearing assembly. Each lubricant outlet connector is located below its corresponding bearing. Normally, lubricating oil is introduced into each grease fitting at regular intervals. When lubricating oil overflows from the corresponding lubricant outlet connector, it indicates that the corresponding bearing is fully lubricated. This arrangement ensures adequate bearing lubrication, improves the smoothness of the movement of bearing components, and extends the bearing's service life.

[0015] Furthermore, in the aforementioned rotary thick beverage filling machine, an annular cavity is formed on the inner wall of the rotary support cylinder, and sealing ring structures are provided between the rotary support cylinder and the rotary shaft located above and below the annular cavity; an air injection connector communicating with the annular cavity is provided on the rotary support cylinder, and several gas channels communicating with the annular cavity are formed in the rotary shaft, each gas channel corresponding to a plunger-type filling head, and each gas channel is connected to a gas nozzle fixed at the corresponding plunger-type filling head through its corresponding air pipe, and a second one-way valve is provided on each air pipe, which is closed during filling to prevent thick beverage from entering the air pipe.

[0016] Furthermore, in the aforementioned rotary thick beverage filling machine, a photoelectric switch and a reflector are fixedly installed on the mounting base at the valve opening mechanism, and the bottle cap in the anti-rotation clamping structure at the valve opening mechanism is located between the photoelectric switch and the reflector. It is also equipped with a PLC controller, and the control components of the photoelectric switch and the air circuit system of the valve opening cylinder are all connected to the PLC controller signal.

[0017] When any bottle cap anti-rotation clamping structure rotates to the valve opening mechanism, if there is no bottle cap in the anti-rotation clamping structure, then there is no bottle cap blocking the photoelectric switch and the reflector. At this time, the photoelectric switch can receive the reflected light and feed the signal back to the PLC controller. The PLC controller controls the control components of the air circuit system of the valve opening cylinder, so that the extension rod of the valve opening cylinder does not extend outward. At this time, the horn plate on the plunger-type filling head passing through the valve opening mechanism will not be moved by the valve opening roller on the valve opening cylinder. At this time, the valve rod in the plunger-type filling head will not rotate and will still be in the state of communication between the beverage inlet and the upper vertical cavity.

[0018] When any bottle cap anti-rotation clamping structure rotates to the valve opening mechanism, if there is a bottle cap in the anti-rotation clamping structure, the bottle cap will block the photoelectric switch and the reflector. At this time, the photoelectric switch cannot receive the reflected light. The photoelectric switch feeds the signal back to the PLC controller. The PLC controller controls the control components of the air circuit system of the valve opening cylinder, causing the extension rod of the valve opening cylinder to extend outward. At this time, the horn plate on the plunger-type filling head passing through the valve opening mechanism is turned by the valve opening roller on the valve opening cylinder, forcing the valve rod in the plunger-type filling head to rotate to the state where the connecting through hole connects the upper vertical cavity and the lower vertical cavity.

[0019] Furthermore, in the aforementioned rotary thick beverage filling machine, a heating device is installed inside the rotary beverage cylinder to heat the thick beverage inside the cylinder. The structure of the heating device includes: a heating barrel, an open opening at the top of the rotating beverage cylinder that communicates with the inner cavity of the rotating beverage cylinder, the heating barrel being installed at the open opening through a bearing seat and a sealing structure, and the heating barrel extending into the rotating beverage cylinder, the heating barrel being fixed to the base by an anti-rotation plate; A heating rod is installed on the heating tank to heat the liquid inside the heating tank; a first thermocouple is installed on the heating tank to measure the temperature of the liquid inside the heating tank; a first liquid level float valve is installed on the water inlet pipe of the heating tank, and the first liquid level float on the first liquid level float valve floats in the liquid in the heating tank. A second thermocouple is installed on the rotating beverage cylinder to measure the temperature of the thick beverage inside the rotating beverage cylinder; a second liquid level float valve is installed on the thick beverage feed pipe of the rotating beverage cylinder, and the second liquid level float on the second liquid level float valve floats in the thick beverage inside the rotating beverage cylinder. It is also equipped with a PLC controller, and the opening and closing control of the heating rod, the first thermocouple, and the second thermocouple are all connected to the PLC controller signal.

[0020] The beneficial effects of this invention are: (1) The bottle cap anti-rotation clamping structure has a simple overall structure, is easy to manufacture and process, has low usage and maintenance costs, and is very easy to use. Just push the clamping spring upwards to tighten the bottle cap located in the clamping spring. The bottle cap is reliably clamped and will not loosen. It is also not easy to damage the bottle cap. Pull down the clamping spring to loosen the bottle cap and easily remove the bottle cap. It is suitable for clamping bottle caps on filling machines that fill basic raw materials for bottle caps with sealed cavities, and is also suitable for clamping bottle caps on capping machines that screw caps to seal sealed cavities. (2) A first one-way valve is set on the injection head. When the plunger filling head is filled, the corresponding first one-way valve is closed to play a first-level anti-drip role. A second one-way valve is set on the air tube. When the plunger filling head is filling, the corresponding second one-way valve is closed to prevent thick beverages from entering the air tube. After the plunger filling head is filled, the corresponding second one-way valve is opened, the gas injection connector is connected to the gas, and the gas is blown towards the corresponding injection head to accelerate the flow of the residual beverage under the corresponding first one-way valve into the sealed cavity of the bottle cap. This can prevent the residual beverage under the first one-way valve from dripping into the environment outside the bottle cap and causing pollution, and can also ensure that the weight of the beverage poured into the sealed cavity of each bottle cap is basically the same. (3) The photoelectric switch and reflector work together to detect whether there is a bottle cap in the anti-rotation clamping structure of the bottle cap at the valve opening mechanism. Only when there is a bottle cap in the anti-rotation clamping structure of the bottle cap at the valve opening mechanism will the valve opening mechanism be triggered to open the valve and fill the corresponding plunger filling head. This setting can prevent pollution of the surrounding environment and unnecessary downtime for cleaning, and can also reduce waste and lower costs. (4) Thermocouples are installed on both the heating tank and the beverage tank to monitor the temperature in real time and are controlled by a PLC controller, so as to ensure that the thick liquid in the beverage tank is always kept at the optimal filling temperature, thereby improving filling efficiency and filling quality. (5) The first level float on the first level float valve monitors the liquid level in the heating tank in real time. When the water level drops to a certain set value, water will be automatically replenished to prevent dry burning. The second level float on the second level float valve monitors the liquid level in the rotating beverage tank in real time. When the liquid level of the thick beverage drops to a certain set value, beverage will be automatically replenished to avoid the beverage tank from affecting the filling production due to the lack of thick beverage. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a bottle cap anti-rotation clamping structure according to the present invention.

[0022] Figure 2 yes Figure 1 Exploded view.

[0023] Figure 3 This is a schematic diagram of the clip spring.

[0024] Figure 4 This is a schematic diagram of the structure of a rotary thick beverage filling machine according to the present invention.

[0025] Figure 5 yes Figure 4 A magnified schematic diagram of a portion of the area where the heating tank is located.

[0026] Figure 6 yes Figure 4A partially enlarged schematic diagram of the rotating device.

[0027] Figure 7 yes Figure 4 A magnified schematic diagram of a portion of the area where the anti-rotation clamping structure of the bottle cap is located.

[0028] Figure 8 This is a schematic diagram of the working state of a plunger-type filling head when it sucks in a beverage.

[0029] Figure 9 This is a schematic diagram of the working state of a plunger-type filling head when filling beverages downwards.

[0030] Figure 10 This is a schematic diagram of the valve opening process using the valve opening roller.

[0031] Figure 11 This is a schematic diagram of the working state of the upper roller rolling in the annular gap between the first upper annular end face cam and the second upper annular end face cam.

[0032] Figure 12 This is a schematic diagram of the valve opening mechanism controlled by the photoelectric switch and reflector.

[0033] Figure 13 This is a schematic diagram of the valve opening process of the valve closing mechanism.

[0034] Figure 14 This is a schematic diagram of the valve closing process using the valve closing roller.

[0035] Among them, the appendix Figure 1 To be continued Figure 14 Figure label explanation: 100. Bottle cap; 1. Fixing plate; 11. Mounting hole; 111. Upper mounting hole; 112. Lower mounting hole; 113. Supporting platform; 2. Clamping block; 21. Clamping hole; 211. Upper round hole; 212. Middle conical hole; 213. Lower round hole; 22. Protrusion; 23. Cover plate; 231. Fitting hole; 3. Clamping spring; 31. Upper cylinder; 32. Middle cone; 33. Lower cylinder; 34. Bottle cap receiving cavity; 35. Groove; 351. Groove bottom; 36. Spring claw; 37. Guide angle; 38. Connecting shaft; 381. Lower roller; 39. 1. Guide sleeve; 391. Support plate; 4. Clamping seat; 5. Rotary beverage cylinder; 50. Thick beverage feed pipe; 51. Heating tank; 52. Bearing seat; 53. Sealing structure; 54. Anti-rotation plate; 55. Heating rod; 56. First thermocouple; 57. First liquid level float; 58. Second thermocouple; 59. Second liquid level float; 6. Base; 61. Rotary support cylinder; 611. Oil nozzle; 612. Lubricating oil output connector; 613. Sealing ring structure; 614. Annular cavity; 615. Gas injection connector; 616. Gas Channel; 617, Air tube; 618, Second one-way valve; 62, Rotating shaft; 63, Bearing assembly; 64, Drive motor; 7, Mounting base; 71, Mounting bracket; 711, First upper annular end face cam; 712, Second upper annular end face cam; 713, First lower annular end face cam; 714, Second lower annular end face cam; 8, Plunger-type filling head; 81, Connecting rod; 811, Upper roller; 82, Upper housing; 821, Long groove; 83, Plunger; 831, Sealing groove; 832, Sealing ring; 84, Lower... 841. Housing; 841. Vertical cavity; 8411. Upper vertical cavity; 8412. Lower vertical cavity; 842. Horizontal cavity; 8421. Limiting groove; 85. Limiting cover; 86. Valve stem; 861. Limiting shoulder; 862. First through hole; 863. Angled hole; 864. Connecting through hole; 865. Goat's horn plate; 87. Spring; 88. Injection head; 881. First one-way valve; 89. Protective sleeve; 91. Valve opening cylinder; 911. Valve opening roller; 92. Valve closing roller; 93. Photoelectric switch; 94. Reflector. Detailed Implementation

[0036] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments.

[0037] Exemplary embodiments will be described more fully below with reference to the accompanying drawings; however, these exemplary embodiments may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will enable those skilled in the art to fully understand the scope of this disclosure.

[0038] Example 1 like Figure 1 , Figure 2 and Figure 3 As shown in the figure, the bottle cap anti-rotation clamping structure described in this embodiment includes: a fixing plate 1, on which a vertically penetrating mounting hole 11 is provided, a clamping block 2 is fixedly installed in the mounting hole 11, and a clamping hole 21 is provided in the clamping block 2. The clamping hole 21 is composed of an upper circular hole 211, a middle conical hole 212, and a lower circular hole 213 arranged sequentially from top to bottom. The upper circular hole 211, the middle conical hole 212, and the lower circular hole 213 are coaxial. The upper diameter of the middle conical hole 212 is smaller than the lower diameter of the middle conical hole 212. The upper circular hole 211 and the upper end of the middle conical hole 212 are smoothly connected by an arc, and the lower circular hole 213 and the lower end of the middle conical hole 212 are smoothly connected by an arc.

[0039] The clamping spring 3 is movably inserted into the clamping hole 21 from below. A bottle cap receiving cavity 34 matching the outer contour of the bottle cap 100 is formed on the top surface of the clamping spring 3. The outer contour of the clamping spring 3 from top to bottom consists of: an upper cylinder 31 matching the upper circular hole 211, a middle cone 32 matching the middle conical hole 212, and a lower cylinder 33 matching the lower circular hole 213. Several slots 35 are formed on the top surface of the clamping spring 3. Each slot 35 is evenly spaced around the axis of the clamping spring 3, and the bottom 351 of each slot 35 is located on the lower cylinder 33. Each slot 35 penetrates the outer side wall of the clamping spring 3 and the inner side wall of the bottle cap receiving cavity 34. The slots 35 are separated to form spring claws 36 that are evenly spaced around the axis of the clamping spring 3.

[0040] After the bottle cap 100 is placed into the bottle cap receiving cavity 34, the clamping spring 3 is pushed upward. At this time, the central cone 32 on the clamping spring 3 moves upward and is pressed by the inclined surface of the central cone hole 212. The spring claw 36 gradually moves inward and tightens, clamping the bottle cap. Conversely, when the clamping spring 3 is pulled downward, the central cone 32 on the clamping spring 3 moves downward, and the pressure exerted by the central cone hole 212 on the spring claw 36 gradually decreases until it disappears. At this time, the spring claw 36 returns to its original state, and the bottle cap is released.

[0041] like Figure 3 As shown, a more preferred embodiment is that a guide angle 37 is cut between the bottom surface of the spring clip 3 and the outer side wall of the spring clip 3. The groove wall of the slot 35 is smoothly connected to the inner side wall of the bottle cap receiving cavity 34 by an arc, and the groove wall of the slot 35 is smoothly connected to the outer side wall of the spring clip 3 by an arc; a rust-proof layer is provided on the surface of the spring clip 3.

[0042] like Figure 1 and Figure 2As shown, the fixed installation structure of the clamping block 2 in the mounting hole 11 in this embodiment is as follows: a protruding protrusion 22 is provided on the clamping block 2. The mounting holes 11 are arranged from top to bottom as an upper mounting hole 111 and a lower mounting hole 112. The diameter of the upper mounting hole 111 is larger than the diameter of the lower mounting hole 112, and a support platform 113 for the protrusion 22 to rest is formed between the upper mounting hole 111 and the lower mounting hole 112. A cover plate 23 is fitted on the clamping block 2. The cover plate 23 is fixedly connected to the top surface of the fixing plate 1, which restricts the protrusion 22 in the upper mounting hole 111. The cover plate 23 is provided with a through-hole 231. The cover plate 23 is fitted onto the clamping block 2 above the protrusion 22 through the through-hole 231.

[0043] The above-mentioned anti-rotation clamping structure for bottle caps has a simple overall structure, is easy to manufacture and process, has low usage and maintenance costs, and is very convenient to use. Through the design of the clamping spring 3, the clamping spring 3 can contract when pressed and can return to its original position when the pressure is released. Simply push the clamping spring 3 upward to tighten the bottle cap 100 located inside the clamping spring 3. The bottle cap 100 is reliably clamped, there will be no loosening problem, and it is not easy to damage the bottle cap 100. Pulling down the clamping spring 3 can loosen the bottle cap 100 and easily remove the bottle cap 100. It is suitable for clamping the bottle cap 100 on filling machines that fill basic raw materials into bottle caps 100 with sealed cavities, and it is also suitable for clamping the bottle cap 100 on capping machines that screw caps 100 with sealed cavities to seal the sealed cavities.

[0044] Example 2 like Figure 4 As shown, the rotary thick beverage filling machine in this embodiment includes: a clamping base 4, a rotary beverage cylinder 5, a base 6 fixed on the machine base, and a mounting base 7 fixed on the machine base. Figure 4 To more clearly illustrate the components, the base and the protective cover surrounding it are omitted from the diagram. The base and protective cover are conventional techniques in this field and will not be described in detail here. The clamping base 4 is mounted on the base 6 via a rotating device, and the clamping base 4 can rotate around its own axis via the rotating device. Several clamping structures are mounted on the clamping base 4, and these structures are evenly spaced around the axis of the clamping base 4. The clamping structures employ the bottle cap anti-rotation clamping structure described in Embodiment 1. The bottle cap anti-rotation clamping structure is fixed to the clamping base 4 by a fixing plate 1, as shown below. Figure 4 and Figure 7 As shown.

[0045] A rotating beverage cylinder 5 is fixedly mounted on a clamping base 4. Several plunger-type filling heads 8 are evenly spaced circumferentially on the outer wall of the rotating beverage cylinder 5. The beverage inlet of each plunger-type filling head 8 communicates with the inner cavity of the rotating beverage cylinder 5. Each plunger-type filling head 8 corresponds one-to-one with a bottle cap anti-rotation clamping structure, and each plunger-type filling head 8 is located directly above the corresponding bottle cap anti-rotation clamping structure. A more preferred embodiment is to have the bottom surface of the cavity of the rotating beverage cylinder 5 have a conical bottom structure with a convex center. This arrangement allows the thick beverage to diffuse to the periphery of the bottom surface of the cavity of the rotating beverage cylinder 5, which is more conducive to the thick beverage in the rotating beverage cylinder 5 converging towards the beverage inlets of each plunger-type filling head 8.

[0046] like Figure 4 , Figure 8 , Figure 9 and Figure 11 As shown, a mounting bracket 71 is fixedly mounted on the mounting base 7, and a first upper annular end face cam 711 and a second upper annular end face cam 712 are fixedly mounted on the mounting bracket 71. Each plunger-type filling head 8 has a connecting rod 81 on its plunger, and an upper roller 811 is mounted on the connecting rod 81. The upper roller 811 is rolled and clamped between the first upper annular end face cam 711 and the second upper annular end face cam 712. At this time, the annular gap between the first upper annular end face cam 711 and the second upper annular end face cam 712 is the movement area of ​​the upper roller 811. The annular gap between the first upper annular end face cam 711 and the second upper annular end face cam 712 has an upward stroke that causes the upper roller 811 to move upward so that the thick beverage is drawn from the beverage inlet into the plunger-type filling head 8. It also has a downward stroke that causes the upper roller 811 to move downward so that the thick beverage is ejected from the plunger-type filling head 8.

[0047] like Figure 8 and Figure 9 As shown, the plunger-type filling head 8 includes an upper housing 82, with a plunger 83 movably inserted into the cavity of the upper housing 82. A long groove 821 is formed on the side wall of the upper housing 82. A connecting rod 81 fixed to the plunger 83 passes through the long groove 821 and extends out of the upper housing 82. An upper roller 811 is mounted on the connecting rod 81 extending out of the long groove 821. At least one sealing groove 831 is provided on the plunger 83, and a sealing ring 832 is embedded in each sealing groove 831 to seal against the cavity wall of the upper housing 82. When the plunger moves up and down, the sealing ring 832 is always positioned below the long groove 821 to prevent leakage of thick beverages.

[0048] A lower housing 84 is installed at the bottom of the upper housing 82. The lower housing 84 has a vertical cavity 841 and a horizontal cavity 842, which penetrate vertically through each other. A limiting groove 8421 is formed inward at the outer end of the horizontal cavity 842, and a limiting cover 85 is fixedly installed on the outer end face of the lower housing 84. The valve stem 86 is inserted into the horizontal cavity 842, dividing the vertical cavity 841 into an upper vertical cavity 8411 and a lower vertical cavity 8412. The upper vertical cavity 8411 communicates with the cavity of the upper housing 82 located below the plunger 83. A protruding limiting shoulder 861 is provided on the valve stem 86, which is located in the limiting groove 8421. The outer end of the valve stem 86 passes through the through hole on the limiting cover 85 and extends out of the limiting cover 85. A spring 87 is fitted on the valve stem 86. One end of the spring 87 presses against the inner wall of the limiting cover 85, and the other end of the spring 87 presses against the limiting shoulder 861, so that the limiting shoulder 861 abuts against the limiting groove 8421. At this time, if the valve stem 86 is not subjected to external force, the valve stem 86 will maintain its current state under the elastic force of the spring 87 and will not rotate. The valve stem 86 will only rotate when it is forced by external rotational force, at which point the switching between opening and closing the valve will occur.

[0049] A first through hole 862 is provided on the inner end face of the valve stem 86, and an oblique hole 863 is provided obliquely inward on the outer wall of the valve stem 86. The oblique hole 863 communicates with the first through hole 862. The oblique hole 863 and the first through hole 862 together form the beverage inlet of the plunger-type filling head 8. When the valve stem 86 is rotated to a certain set angle, the beverage inlet communicates with the upper vertical cavity 8411. Figure 8 As shown.

[0050] A connecting through hole 864 is provided on the outer wall of the valve stem 86, which connects the upper vertical cavity 8411 and the lower vertical cavity 8412 when the valve stem 86 is rotated to a certain set angle. Figure 9 As shown. The connecting through hole 864 is not connected to the beverage inlet, and the beverage inlet and the connecting through hole 864 cannot be simultaneously connected to the upper vertical cavity 8411. An injection head 88 with a first one-way valve 881 is installed at the bottom of the lower housing 84, and the injection head 88 is connected to the lower vertical cavity 8412. After the plunger-type filling head 8 has finished filling, the corresponding first one-way valve 881 closes to provide a first-level anti-drip function.

[0051] A first lower annular end face cam 713 and a second lower annular end face cam 714 are fixedly installed on the mounting base 7. The bottom of the clamping spring 3 in the bottle cap anti-rotation clamping structure is fixedly connected to a connecting shaft 38. A lower roller 381 is installed at the bottom of the connecting shaft 38. The lower roller 381 rolls and clamps between the first lower annular end face cam 713 and the second lower annular end face cam 714. At this time, the annular gap between the first lower annular end face cam 713 and the second lower annular end face cam 714 is the movement area of ​​the lower roller 381. A guide sleeve 39 is movably fitted on the connecting shaft 38. A support plate 391 is fixedly installed on the guide sleeve 39. The number of support plates 391 is preferably two. Each support plate 391 is fixed on the clamping base 4. The annular gap between the first lower annular end face cam 713 and the second lower annular end face cam 714 has an upward stroke that causes the lower roller 381 to move upward, so that the clamping spring 3 abuts against the clamping block 2 and clamps the bottle cap 100. It also has a downward stroke that causes the lower roller 381 to move downward, so that the clamping spring 3 retracts from the clamping block 2 and releases the bottle cap 100.

[0052] A more preferred solution is to fix a protective sleeve 89 made of PEK material onto the valve stem 86. PEK has high temperature resistance, fatigue resistance, corrosion resistance and self-lubricating properties, which can ensure that the valve stem 86 switches more smoothly when opening and closing the valve.

[0053] The mounting base 7 is equipped with a valve opening mechanism that opens the valve of the plunger-type filling head 8, such as... Figure 8 , Figure 9 , Figure 10 and Figure 12 As shown, the valve opening mechanism in this embodiment includes: a valve opening cylinder 91, which is fixed on the machine base; a valve opening roller 911 is installed on the extension rod of the valve opening cylinder 91; a spur plate 865 is fixedly installed on the valve rod 86; when the extension rod of the valve opening cylinder 91 extends outward by a set distance, the position of the valve opening roller 911 causes the spur plate 865 on the plunger-type filling head 8 passing through the valve opening roller 911 to rotate to the connecting through hole 864, connecting the upper vertical cavity 8411 and the lower vertical cavity 8412. Figure 10 The dashed line shows the state when the swivel plate 865 on the plunger-type filling head 8 has not reached the valve opening roller 911, at which point the plunger-type filling head 8 is in the closed valve state. The solid line shows the state after the swivel plate 865 on the plunger-type filling head 8 reaches the valve opening roller 911 and is forced to rotate due to being blocked by the valve opening roller 911, at which point the plunger-type filling head 8 is in the open valve state.

[0054] A valve-closing mechanism is provided on the mounting base 7 to close the valve of the plunger-type filling head 8, such as... Figure 13 and Figure 14As shown, the valve-closing mechanism in this embodiment includes: a valve-closing roller 92 fixedly mounted on the base, positioned such that the horn plate 865 on the plunger-type filling head 8, passing through the valve-closing roller 92, rotates to communicate with the beverage suction inlet and the upper vertical cavity 8411. Regardless of whether the plunger-type filling head 8 has been opened previously, it must pass through the valve-closing mechanism to close the valve. Figure 14 The dashed part shown is a schematic diagram of the state when the spur plate 865 on the plunger filling head 8 has not reached the valve closing roller 92 when the valve is in the open state. The solid part is a schematic diagram of the state after the spur plate 865 on the plunger filling head 8 reaches the valve closing roller 92 and is blocked by the valve closing roller 92 and forced to rotate. At this time, the plunger filling head 8 is in the valve closing state.

[0055] In this embodiment, as Figure 12 As shown, a photoelectric switch 93 and a reflector 94 are fixedly installed on the mounting base 7 at the valve opening mechanism. The positions of the photoelectric switch 93 and the reflector 94 are such that the bottle cap 100 in the bottle cap anti-rotation clamping structure at the valve opening mechanism is located between the photoelectric switch 93 and the reflector 94.

[0056] It is also equipped with a PLC controller, and the control components of the pneumatic system of photoelectric switch 93 and valve opening cylinder 91 are all connected to the PLC controller signal.

[0057] When any bottle cap anti-rotation clamping structure rotates to the valve opening mechanism, if there is no bottle cap 100 in the bottle cap anti-rotation clamping structure, then there is no bottle cap 100 blocking the space between the photoelectric switch 93 and the reflector 94. At this time, the photoelectric switch 93 can receive the reflected light and feeds the signal back to the PLC controller. The PLC controller controls the control components of the air circuit system of the valve opening cylinder 91 so that the extension rod of the valve opening cylinder 91 does not extend outward. At this time, the horn plate 865 on the plunger filling head 8 passing through the valve opening mechanism will not be moved by the valve opening roller 911 on the valve opening cylinder 91. Therefore, the valve rod 86 in the plunger filling head 8 will not rotate and will remain in the state of communication between the beverage inlet and the upper vertical cavity 8411, that is, the plunger filling head 8 is in the closed valve state.

[0058] When any bottle cap anti-rotation clamping structure rotates to the valve opening mechanism, if there is a bottle cap 100 in the bottle cap anti-rotation clamping structure, the bottle cap 100 will block the photoelectric switch 93 and the reflector 94. At this time, the photoelectric switch 93 cannot receive the reflected light. The photoelectric switch 93 feeds the signal back to the PLC controller. The PLC controller controls the control components of the air circuit system of the valve opening cylinder 91, so that the extension rod of the valve opening cylinder 91 extends outward. At this time, the horn plate 865 on the plunger filling head 8 passing through the valve opening mechanism is pushed by the valve opening roller 911 on the valve opening cylinder 91. Therefore, the valve rod 86 in the plunger filling head 8 will rotate to the state where the connecting through hole 864 connects the upper vertical cavity 8411 and the lower vertical cavity 8412, that is, the plunger filling head 8 is in the valve opening state.

[0059] Example 3 This embodiment describes the structure of the rotating device based on Embodiment 2. For example... Figure 4 and Figure 6 As shown, the structure of the rotating device in this embodiment includes: a rotating support cylinder 61 fixedly installed on the base 6, and a rotating shaft 62 supported in the inner cavity of the rotating support cylinder 61 by a bearing assembly 63. In this embodiment, the bearing assembly 63 consists of an upper bearing distributed in the upper section of the rotating support cylinder 61 and a lower bearing distributed in the lower section of the rotating support cylinder 61. The top of the rotating shaft 62 extends out of the rotating support cylinder 61 and is fixedly connected to the clamping seat 4. The rotating shaft 62 is driven by a drive motor 64 fixed on the base 6. Under the drive of the drive motor 64, the rotating shaft 62 is rotated, thereby forcing the clamping seat 4 fixedly connected to the rotating shaft 62 to rotate synchronously.

[0060] like Figure 6 As shown, the rotating support cylinder 61 is equipped with grease nipples 611 for lubricating the corresponding bearings in the bearing assembly 63. Each grease nipple 611 is located above the corresponding bearing. The rotating support cylinder 61 is also equipped with lubricating oil outlet connectors 612 for discharging lubricating oil from the corresponding bearings in the bearing assembly 63. Each lubricating oil outlet connector 612 is located below the corresponding bearing. Normally, lubricating oil is introduced into each grease nipple 611 at regular intervals. When lubricating oil overflows from the corresponding lubricating oil outlet connector 612, it indicates that the corresponding bearing is fully lubricated. This arrangement ensures sufficient bearing lubrication, improves the smoothness of bearing movement, extends bearing life, and prevents lubricating oil from overflowing and dripping into the surrounding environment, thus contaminating the work area.

[0061] A more preferred option is: such as Figure 6 and Figure 8As shown, an annular cavity 614 is provided on the inner wall of the rotating support cylinder 61. A sealing ring structure 613 is provided between the rotating support cylinder 61 and the rotating shaft 62 located above and below the annular cavity 614. An air injection connector 615 communicating with the annular cavity 614 is provided on the rotating support cylinder 61. Several gas channels 616 communicating with the annular cavity 614 are provided in the rotating shaft 62. Each gas channel 616 corresponds to each plunger-type filling head 8. Each gas channel 616 is connected to a gas nozzle fixed at the corresponding plunger-type filling head 8 through its corresponding air pipe 617. A second one-way valve 618 is provided on each air pipe 617.

[0062] When the plunger-type filling head 8 is filling, the corresponding second one-way valve 618 is in the closed state, thereby preventing thick beverages from entering the air pipe 617. After the plunger-type filling head 8 finishes filling, the corresponding second one-way valve 618 is opened, the air injection connector 615 is connected to the gas, and the gas is blown towards the corresponding injection head 88, which accelerates the flow of the residual beverage at the bottom of the corresponding first one-way valve 881 into the sealed cavity of the bottle cap 100. This not only prevents the residual beverage at the bottom of the first one-way valve 881 from dripping into the environment outside the bottle cap 100 and causing contamination, but also ensures that the weight of the beverage poured into the sealed cavity of each bottle cap 100 is basically the same.

[0063] Some thick beverages need to be maintained at a set temperature to maintain good fluidity, such as honey. Figure 4 and Figure 5 As shown, in this embodiment, a heating device for heating the thick beverage inside the rotating beverage tank 5 is installed. The heating device includes a heating barrel 51, with an open opening at the top of the rotating beverage tank 5 communicating with the inner cavity of the rotating beverage tank 5. The heating barrel 51 is installed at the open opening through a bearing seat 52 and a sealing structure 53, and the heating barrel 51 extends into the rotating beverage tank 5. The heating barrel 51 is fixed to the base by an anti-rotation plate 54.

[0064] like Figure 4 and Figure 5 As shown, a heating rod 55 is provided on the heating tank 51 to heat the liquid inside the heating tank 51; a first thermocouple 56 is provided on the heating tank 51 to measure the temperature of the liquid inside the heating tank 51; a first liquid level float valve is installed on the water inlet pipe of the heating tank 51, and a first liquid level float 57 on the first liquid level float valve floats in the liquid inside the heating tank 51.

[0065] like Figure 4 and Figure 5As shown, a second thermocouple 58 is installed on the rotating beverage cylinder 5 to measure the temperature of the thick beverage inside the rotating beverage cylinder 5; a second liquid level float valve is installed on the thick beverage feed pipe 50 of the rotating beverage cylinder 5, and a second liquid level float 59 on the second liquid level float valve floats in the thick beverage inside the rotating beverage cylinder 5.

[0066] A PLC controller is also provided, and the opening and closing control of the heating rod 55, the first thermocouple 56, and the second thermocouple 58 are all connected to the PLC controller. Thermocouples are installed on the heating tank 51 and the rotating beverage cylinder 5 to monitor the temperature in real time, and the temperature is controlled by the PLC controller, thereby ensuring that the viscous liquid in the rotating beverage cylinder 5 is always kept at the optimal filling temperature, improving filling efficiency and filling quality.

[0067] The first level float 57 on the first level float valve monitors the liquid level in the heating tank 51 in real time. When the water level drops to a certain set value, water will be automatically replenished to prevent dry burning. The second level float 59 on the second level float valve monitors the liquid level in the rotating beverage tank 5 in real time. When the beverage level drops to a certain set value, beverage will be automatically replenished to avoid affecting the filling production due to insufficient beverage in the rotating beverage tank 5.

[0068] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any modifications or equivalent changes made based on the technical essence of the present invention shall still fall within the scope of protection claimed by the present invention.

Claims

1. A bottle cap anti-rotation clamping structure, comprising: A fixing plate, characterized in that: a through mounting hole is provided on the fixing plate, a clamping block is fixedly installed in the mounting hole, and a clamping hole is provided in the clamping block. The clamping hole is composed of an upper circular hole, a middle conical hole, and a lower circular hole arranged sequentially from top to bottom, and the upper circular hole, the middle conical hole, and the lower circular hole are coaxial. The upper diameter of the middle conical hole is smaller than the lower diameter of the middle conical hole, and the upper circular hole and the upper end of the middle conical hole are smoothly connected by an arc, and the lower circular hole and the lower end of the middle conical hole are smoothly connected by an arc. The clamping spring is movably inserted into the clamping hole from above. A bottle cap receiving cavity matching the outer contour of the bottle cap is formed on the top surface of the clamping spring. The outer contour of the clamping spring, from top to bottom, consists of an upper cylinder matching the upper circular hole, a middle cone matching the middle conical hole, and a lower cylinder matching the lower circular hole. Several slots are formed on the top surface of the clamping spring. The slots are evenly spaced around the axis of the clamping spring, and the bottom of each slot is located on the lower cylinder. Each slot penetrates the outer side wall of the clamping spring and the inner side wall of the bottle cap receiving cavity. The slots separate and form spring claws that are evenly spaced around the axis of the clamping spring.

2. The bottle cap anti-rotation clamping structure according to claim 1, characterized in that: A guide angle is cut between the bottom surface of the clamping spring and the outer wall of the clamping spring; the groove wall of the slot is smoothly connected to the inner wall of the bottle cap receiving cavity by an arc, and the groove wall of the slot is smoothly connected to the outer wall of the clamping spring by an arc; a rust-proof layer is provided on the surface of the clamping spring.

3. A bottle cap anti-rotation clamping structure according to claim 1 or 2, characterized in that: The fixed installation structure for fixing the clamping block in the mounting hole is as follows: an outwardly protruding protrusion is provided on the clamping block, and the mounting holes are arranged from top to bottom as an upper mounting hole and a lower mounting hole. The diameter of the upper mounting hole is larger than the diameter of the lower mounting hole, and a support platform for the protrusion is formed between the upper mounting hole and the lower mounting hole. A cover plate is fitted on the clamping block, and the cover plate is fixedly connected to the top surface of the fixing plate to restrict the protrusion in the upper mounting hole.

4. A rotary thick beverage filling machine, comprising: The system comprises a clamping base, a rotating beverage cylinder, a base fixed to a machine base, and a mounting seat fixed to the machine base. The clamping base is mounted on the base via a rotating device and can rotate around its own axis via the rotating device. Several clamping structures are mounted on the clamping base, and the clamping structures are evenly spaced around the axis of the clamping base. The rotating beverage cylinder is fixedly mounted on the clamping base. Several plunger-type filling heads are evenly spaced circumferentially on the outer wall of the rotating beverage cylinder. The beverage inlet of each plunger-type filling head communicates with the inner cavity of the rotating beverage cylinder. Each type of filling head corresponds one-to-one with a clamping structure; a mounting frame is fixedly mounted on the mounting base, and a first upper annular end face cam and a second upper annular end face cam are fixedly mounted on the mounting frame; each plunger-type filling head has a connecting rod on its plunger, and an upper roller is mounted on the connecting rod, the upper roller rolling and clamping between the first upper annular end face cam and the second upper annular end face cam; a valve opening mechanism for opening the plunger-type filling head is provided on the mounting base; a valve closing mechanism for closing the plunger-type filling head is provided on the mounting base; its characteristic is: The clamping structure adopts any one of the bottle cap anti-rotation clamping structures according to claims 1 to 3. The bottle cap anti-rotation clamping structure is fixed to the clamping base by a fixing plate. A first lower annular end face cam and a second lower annular end face cam are fixedly installed on the mounting base. The bottom of the clamping spring in the bottle cap anti-rotation clamping structure is fixedly connected to a connecting shaft. A lower roller is installed at the bottom of the connecting shaft. The lower roller rolls and clamps between the first lower annular end face cam and the second lower annular end face cam. A guide sleeve is movably fitted on the connecting shaft. A support plate is fixedly provided on the guide sleeve. The support plate is fixed to the clamping base.

5. A rotary thick beverage filling machine according to claim 4, characterized in that: The structure of the plunger-type filling head includes: an upper shell, in which a plunger is movably inserted; a long groove is provided on the side wall of the upper shell, and a connecting rod fixed on the plunger passes through the long groove and extends out of the upper shell; at least one sealing groove is provided on the plunger, and a sealing ring is embedded in each sealing groove to seal against the cavity wall of the upper shell, and the sealing ring is always located below the long groove when the plunger moves up and down; A lower housing is installed at the bottom of the upper housing. The lower housing has a vertical cavity and a horizontal cavity, which penetrate vertically through each other. A limiting groove is formed inward at the outer end of the horizontal cavity, and a limiting cover is fixedly installed on the outer end face of the lower housing. The valve stem is inserted into the horizontal cavity, dividing the vertical cavity into an upper vertical cavity and a lower vertical cavity. The upper vertical cavity communicates with the cavity of the upper housing located below the plunger. A protruding limiting shoulder is provided on the valve stem. The limiting shoulder is located in the limiting groove. The outer end of the valve stem passes through the through hole on the limiting cover and extends out of the limiting cover. A spring is fitted on the valve stem. One end of the spring abuts against the inner wall of the limiting cover, and the other end of the spring abuts against the limiting shoulder, so that the limiting shoulder abuts against the limiting groove. A first through hole is provided on the inner end face of the valve stem, and an oblique hole is provided on the outer wall of the valve stem. The oblique hole is connected to the first through hole. The oblique hole and the first through hole together form the beverage inlet of the plunger-type filling head. When the valve stem is rotated to a certain set angle, the beverage inlet is connected to the upper vertical cavity. A connecting through hole is provided on the outer wall of the valve stem, which can connect the upper vertical cavity and the lower vertical cavity when the valve stem is rotated to a certain set angle. The connecting through hole is not connected to the beverage inlet, and the beverage inlet and the connecting through hole cannot be connected to the upper vertical cavity at the same time. An injection head with a first check valve is installed at the bottom of the lower housing; The valve opening mechanism includes: a valve opening cylinder, which is fixed on the machine base, and a valve opening roller is installed on the extension rod of the valve opening cylinder; a horn plate is fixedly installed on the valve rod. When the extension rod of the valve opening cylinder extends outward by a set distance, the position of the valve opening roller causes the horn plate on the plunger-type filling head that passes through the valve opening roller to rotate to the connecting through hole to connect the upper vertical cavity and the lower vertical cavity. The structure of the valve closing mechanism includes: a valve closing roller is fixedly installed on the machine base, and the position of the valve closing roller is such that the horn plate on the plunger-type filling head passing through the valve closing roller rotates to the beverage inlet and communicates with the upper vertical cavity.

6. A rotary thick beverage filling machine according to claim 5, characterized in that: A protective sleeve made of PEK material is fixedly fitted onto the valve stem.

7. A rotary thick beverage filling machine according to claim 5, characterized in that: The rotating device includes: a rotating support cylinder fixedly installed on the base; a rotating shaft supported in the inner cavity of the rotating support cylinder by a bearing assembly; the top of the rotating shaft extends out of the rotating support cylinder and is fixedly connected to the clamping seat; and the rotating shaft is driven to rotate by a drive motor fixed on the base. The rotating support cylinder is provided with grease nipples for injecting oil into the corresponding bearings in the bearing assembly. Each grease nipple is located above the corresponding bearing. The rotating support cylinder is also provided with lubricating oil output connectors for outputting lubricating oil from the corresponding bearings in the bearing assembly. Each lubricating oil output connector is located below the corresponding bearing.

8. A rotary thick beverage filling machine according to claim 5 or 7, characterized in that: The rotating device includes: a rotating support cylinder fixedly installed on the base; a rotating shaft supported in the inner cavity of the rotating support cylinder by a bearing assembly; the top of the rotating shaft extends out of the rotating support cylinder and is fixedly connected to the clamping seat; and the rotating shaft is driven to rotate by a drive motor fixed on the base. An annular cavity is formed on the inner wall of the rotating support cylinder. Sealing ring structures are provided between the rotating support cylinder and the rotating shaft above and below the annular cavity. An air injection connector communicating with the annular cavity is provided on the rotating support cylinder. Several gas channels communicating with the annular cavity are formed in the rotating shaft. Each gas channel corresponds to a plunger-type filling head. Each gas channel is connected to a gas nozzle fixed at the corresponding plunger-type filling head through its corresponding air pipe. A second one-way valve is provided on each air pipe.

9. A rotary thick beverage filling machine according to claim 4, characterized in that: A photoelectric switch and a reflector are fixedly installed on the mounting base at the valve opening mechanism. When rotated to the bottle cap anti-rotation clamping structure at the valve opening mechanism, the bottle cap is positioned between the photoelectric switch and the reflector. It is also equipped with a PLC controller, and the control components of the photoelectric switch and the air circuit system of the valve opening cylinder are all connected to the PLC controller signal.

10. A rotary thick beverage filling machine according to claim 4 or 9, characterized in that: A heating device is installed inside the rotating beverage tank to heat the thick beverage inside. The structure of the heating device includes: a heating barrel, with an open opening at the top of the rotating beverage cylinder that communicates with the inner cavity of the rotating beverage cylinder, the heating barrel being installed at the open opening through a bearing seat and a sealing structure, and the heating barrel extending into the rotating beverage cylinder, the heating barrel being fixed to the base by an anti-rotation plate; A heating rod is provided on the heating tank to heat the liquid inside the heating tank; a first thermocouple is provided on the heating tank to measure the temperature of the liquid inside the heating tank; a first liquid level float valve is installed on the water inlet pipe on the heating tank, and the first liquid level float on the first liquid level float valve floats in the liquid inside the heating tank. A second thermocouple is installed on the rotating beverage cylinder to measure the temperature of the thick beverage inside the rotating beverage cylinder; a second liquid level float valve is installed on the thick beverage inlet pipe of the rotating beverage cylinder, and the second liquid level float on the second liquid level float valve floats in the thick beverage inside the rotating beverage cylinder. It is also equipped with a PLC controller, and the opening and closing control of the heating rod, the first thermocouple, and the second thermocouple are all connected to the PLC controller signal.

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