A finished chili sauce filling equipment

Abstract

This invention relates to the field of automated condiment production equipment, and more particularly to a finished chili sauce filling device. The invention provides a finished chili sauce filling device, including a support base as the main load-bearing structure, and further comprising: a solid sauce supply system, including a second storage tank fixed to the support base, a motor mounted on top of the tank, a lid covering the tank, and a stirring rod extending into the tank; and a liquid oil supply system, including a first storage tank fixed to the support base via a bracket and a funnel communicating with it. This device utilizes an adjustable proportioning filling component and a dual-piston cylinder in synergy to achieve precise quantitative filling of the oil and sauce. The adjustable height of the first pressure plate, synchronized with the transmission plate, allows for stepless adjustment of the oil-to-sauce ratio without the need to change parts to adapt to different formulas. A unique blocking component ensures that the sauce enters the mixing process first, avoiding uneven mixing, guaranteeing accurate filling volume and proportion, and improving product quality and production flexibility.

Description

Technical Field

[0001] This invention relates to the field of automated production equipment for condiments, and more particularly to a finished chili sauce filling equipment. Background Technology

[0002] Chili sauce, as a popular condiment, continues to see growing market demand. In its production process, the bottling stage has a decisive impact on product quality. Finished chili sauce is a solid-liquid mixture composed of solid paste (such as chili granules, fermented black beans, and minced garlic) and liquid chili oil; this unique physical property presents a significant challenge to large-scale bottling production.

[0003] Currently, the mainstream process in the industry is to pre-mix chili sauce and chili oil before bottling. However, due to the significant density difference between the solid and liquid phases, the mixture inevitably separates into oil and sauce layers during settling and transportation, directly leading to uneven solid-liquid ratios in each packaging container. This severely affects the consistency of product appearance, taste, and quality stability. To compensate for this deficiency, some manufacturers have to manually replenish oil in containers with insufficient solids at the end of the production line. This outdated method not only significantly increases labor costs and introduces food safety risks but is also inefficient, severely hindering the improvement of production automation. Existing technical solutions have obvious limitations: single-material filling equipment cannot achieve simultaneous and accurate filling of sauce and chili oil; if two sets of equipment are used for separate filling, new problems such as poor system coordination, low ratio control accuracy, and large equipment footprint will arise. In addition, the high viscosity of chili sauce makes it easy for material to remain on the inner and outer walls of the filling nozzle after filling. This residual liquid will drip during the station transition, contaminating the filling head, conveyor line, and container outer wall, resulting in material waste, seriously affecting production cleanliness, and increasing the burden of subsequent cleaning and maintenance.

[0004] Based on the above situation, there is an urgent need to develop an innovative filling equipment that can fundamentally solve the problem of oil and sauce separation, achieve precise proportional synchronous filling, and effectively prevent dripping and contamination. This has become a pressing technical challenge in the field and is of great significance for promoting the development of the chili sauce industry towards high efficiency, high quality, and high cleanliness. Summary of the Invention

[0005] In order to overcome the shortcomings of traditional filling methods, such as easy separation of oil and sauce leading to uneven solid-liquid ratio, high cost and safety risks of manual oil replenishment, difficulty in synchronous and accurate filling of existing equipment, poor system coordination, and easy dripping and contamination of filling nozzles, the technical problem of the present invention is to provide a finished chili sauce filling equipment.

[0006] A finished chili sauce filling device includes a support base as the main load-bearing structure, and further includes: a solid sauce supply system, including a second storage tank fixed to the support base, a motor mounted on top of the tank, a lid covering the tank, and a stirring rod extending into the tank; a liquid oil supply system, including a first storage tank fixed to the support base via a bracket and a funnel connected thereto; a precise quantitative filling system, including a first piston cylinder and a second piston cylinder fixed in parallel to the bracket, the first piston cylinder being connected to the first storage tank via a first conveying pipe, and the second piston cylinder being connected to the second storage tank via a second conveying pipe; a mixing output system, including a hose and an injection pipe, the hose connecting the second piston cylinder and the injection pipe, the first piston cylinder being fed into the middle section of the hose via a branch pipe; a power drive system, including a cylinder mounted on the support base, a connecting plate fixed to the piston rod of the cylinder, and a transmission plate fixed to the connecting plate; and a bottle conveying system, including a conveying assembly located at the front of the support base.

[0007] In a preferred embodiment of the present invention, the precise quantitative filling system includes a proportionally adjustable filling assembly, comprising: a first plunger slidably connected to a first piston cylinder and a second plunger slidably connected to a second piston cylinder, wherein both the first and second plungers are vertically slidably connected to a support, and both are connected to the support by a second spring; a second pressure plate fixedly connected to the second plunger; a first pressure plate threadedly connected to the first plunger via a locking nut; and a transmission plate located directly above the first and second pressure plates.

[0008] In a preferred embodiment of the present invention, the precise quantitative filling system further includes a blocking component disposed in the first piston cylinder, comprising: a movable stop block slidably disposed in the lower cavity of the first piston cylinder; a first spring connected between the movable stop block and the bottom wall of the first piston cylinder; in the initial state, the movable stop block blocks the inlet of the branch pipe.

[0009] In a preferred embodiment of the present invention, the bottle conveying system further includes an intercepting assembly, which includes: a lead screw rotatably connected to a support base; a rotating block fixed to the lower end of the lead screw; a first positioning plate and a second positioning plate respectively hinged to the left and right ends of the rotating block, the two positioning plates being symmetrically distributed along the center line of the injection pipe and longitudinally slidably connected to the support base.

[0010] In a preferred embodiment of the present invention, a linkage component for driving the barrier assembly is further included, comprising: a sliding plate vertically slidably connected to the support base, which is loosely fitted outside the lead screw and has a guide protrusion on its inner side; the surface of the lead screw has a continuous threaded groove, and the guide protrusion is embedded in the groove; a third spring connected between the sliding plate and the bottom of the support base; in the initial state, the connecting plate supports the sliding plate and compresses the third spring.

[0011] In a preferred embodiment of the present invention, the bottle conveying system further includes a central guide component disposed on the conveying component, which includes two adjustable guide baffles that are symmetrically slidably connected front and rear, and the inlet ends of the two baffles are arranged in a figure-eight shape.

[0012] In a preferred embodiment of the present invention, a sealing assembly for controlling the opening, closing, and lifting of the injection tube is further included, comprising: a fixed material plug fixedly attached to a support base for sealing the top of the injection tube; a rotating stop block slidably connected to the support base via a spiral guide post, wherein an inner protrusion is embedded in a threaded slide rail of the guide post and a fifth spring is connected between the stop block and the support base; a counterweight fixedly attached to the upper part of the injection tube, wherein the injection tube is vertically slidably connected to the support base via the counterweight block; and a lifting block fixedly attached to the lower part of the injection tube, which is sleeved on the spiral guide post and located below the rotating stop block.

[0013] In a preferred embodiment of the present invention, height positioning blocks are symmetrically fixed to the outer wall of the injection tube near the bottom outlet.

[0014] In a preferred embodiment of the present invention, an air-injection cleaning assembly for cleaning the inner wall of the injection tube is further included, comprising: a third piston cylinder fixed to a support base; a third plunger vertically slidably connected to a bracket, the upper part of which extends into the third piston cylinder and is connected to the bracket via a fourth spring; a third pressure plate fixed to the third plunger, which is located directly below the transmission plate; an air pipe connecting the third piston cylinder and the upper part of the injection tube; the third piston cylinder is provided with an air inlet branch pipe with a first one-way valve, and the air inlet end of the air pipe is provided with a second one-way valve.

[0015] In a preferred embodiment of the present invention, the downward working stroke of the transmission plate is greater than the downward stroke of the injection tube.

[0016] Compared with the prior art, the present invention has the following advantages: This equipment achieves precise quantitative filling of oil and sauce materials through the coordinated operation of a proportionally adjustable filling component and a double piston cylinder. The height adjustable design of the first pressure plate, combined with the synchronous drive of the transmission plate, allows the oil and sauce ratio to be steplessly adjusted within a certain range. It can adapt to different formula requirements without replacing parts. The unique blocking component ensures that the sauce enters the mixing process before the oil, avoiding uneven mixing caused by differences in fluidity. This mechanical adjustment and coordinated control effectively ensures the consistency of the filling amount and the accuracy of the ratio of each bottle of product, significantly improving product quality and production flexibility.

[0017] This equipment integrates a blocking component and a linkage component. Utilizing the power of a single cylinder, through spring energy storage and helical transmission, it converts linear motion into precise positioning action, realizing automatic interception, precise positioning, and cyclic conveying of empty bottles. The sealing component realizes the automatic opening, closing, and lifting of the filling tube, forming an automated cycle of "open-lower-fill-lift-close". This multi-mechanism linkage design eliminates multiple independent drive sources, simplifies the equipment structure, reduces costs, and at the same time ensures the continuity, accuracy, and efficiency of the filling process, significantly improving overall production efficiency.

[0018] This equipment uses a height positioning block to precisely control the insertion depth of the injection tube, effectively preventing tube contamination. The air injection cleaning component, driven by the main drive, automatically blows the inner wall of the injection tube after each filling, thoroughly removing residual material. The sealing component provides double sealing to the injection tube during non-filling periods, fundamentally eliminating dripping and splashing. These measures work together to significantly reduce material waste, avoid secondary pollution, ensure a clean production environment, and reduce equipment maintenance frequency and cleaning costs, achieving clean, highly reliable, and automated production. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention.

[0021] Figure 3 This is a three-dimensional structural cross-sectional view of the present invention.

[0022] Figure 4 This is a three-dimensional structural diagram of the barrier component and the enclosure component of the present invention.

[0023] Figure 5 This is a three-dimensional structural cross-sectional view of the first piston cylinder, the second piston cylinder, and the injection pipe of the present invention.

[0024] Figure 6 This is a three-dimensional structural cross-sectional view of the air-injection cleaning component of the present invention.

[0025] The above-mentioned drawings include the following reference numerals: 1. Support base; 101. Bracket; 11. Second storage tank; 12. Cover; 13. Motor; 14. Stirring rod; 15. Funnel; 16. First storage tank; 17. First conveying pipe; 18. Second conveying pipe; 19. Movable stop; 110. First spring; 111. Hose; 112. Injection pipe; 1121. Counterweight; 2. Cylinder; 21. Connecting plate; 22. Transmission plate; 23. Second pressure plate; 24. Second spring; 25. Second plunger; 26. First piston cylinder. 27. First pressure plate; 28. Locking nut; 29. ​​First plunger; 210. Second piston cylinder; 3. Conveying assembly; 31. Adjustable guide baffle; 32. First positioning plate; 33. Second positioning plate; 34. Rotating block; 35. Lead screw; 36. Slide plate; 37. Third spring; 38. Height positioning block; 4. Third piston cylinder; 41. Air pipe; 42. Third plunger; 43. Third pressure plate; 44. Fourth spring; 45. Fixed material plug; 46. Rotating stop; 47. Spiral guide post; 48. Lifting block; 49. Fifth spring. Detailed Implementation

[0026] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.

[0027] Example 1: A finished chili sauce filling equipment, such as Figures 1-5 As shown, the system includes a support base 1 serving as the main load-bearing component, on which a second storage tank 11 with a top opening is fixedly connected for holding and temporarily storing solid sauce. The second storage tank 11 is equipped with a lid 12, and a motor 13 is installed on the top of the second storage tank 11. The output shaft of the motor 13 is fixedly connected to a stirring rod 14 extending into the tank via a coupling for continuously stirring the solid sauce, preventing sedimentation, and ensuring that the internal ingredients are mixed evenly. A bracket 101 is also fixedly connected to the support base 1, and a first storage tank 16 is fixedly connected inside the bracket 101 for independently holding liquid chili oil. A funnel 15 is fixedly connected to the support base 1, and it is connected to the first storage tank 16 via a pipeline to form a replenishment channel for the liquid chili oil.

[0028] To achieve precise quantitative filling, a first piston cylinder 26 and a second piston cylinder 210 are fixedly connected to the support 101. The first piston cylinder 26 is connected to the bottom oil outlet of the first storage tank 16 through the first conveying pipe 17 and is used to quantitatively extract liquid chili oil. The second piston cylinder 210 is connected to the bottom discharge outlet of the second storage tank 11 through the second conveying pipe 18 and is used to quantitatively extract solid sauce. The second conveying pipe 18 starts from its inlet end and passes through the inside of the first storage tank 16. This design can use the temperature of the chili oil in the first storage tank 16 to indirectly keep or heat the solid sauce in the pipe, prevent it from solidifying and ensure its fluidity. A valve for controlling the on / off state is provided at its inlet end.

[0029] The support base 1 is provided with a top and bottom opening injection pipe 112, which serves as the final filling outlet after the sauce is mixed. The injection pipe 112 is connected to the second piston cylinder 210 through a hose 111. The lower end of the first piston cylinder 26 is connected to the middle section of the hose 111 through a branch pipe, so that the two materials converge here and enter the injection pipe 112 together. Both the first piston cylinder 26 and the second piston cylinder 210 are provided with a proportionally adjustable injection component for accurately controlling the single extraction amount. In addition, the first piston cylinder 26 is also provided with a blocking component for controlling its discharge sequence.

[0030] The front side of the support base 1 is provided with a conveying component 3, whose working path runs through the filling station. It is used to intermittently convey empty bottles to the bottom of the filling pipe 112 for filling, and after filling, the bottles are transferred to the next process.

[0031] Regarding the injection assembly:

[0032] The injection assembly includes a first plunger 29 slidably connected to the first piston cylinder 26 and a second plunger 25 slidably connected to the second piston cylinder 210. Both the second plunger 25 and the first plunger 29 slide vertically on the bracket 101, and both are connected to the bracket 101 by a second spring 24. Each second spring 24 is wrapped around the corresponding plunger to provide the plunger with the power to reset.

[0033] A second pressure plate 23 is fixedly connected to the second plunger 25, and a first pressure plate 27 is slidably connected to the first plunger 29 via a height adjustment mechanism. Specifically, the first pressure plate 27 and the first plunger 29 are connected by a locking nut 28. When adjusting the amount of liquid chili oil dispensed, the operator can first loosen the locking nut 28, then slide the first pressure plate 27 up and down along the first plunger 29. By changing the relative height difference between the first pressure plate 27 and the second pressure plate 23, the effective stroke of the first piston cylinder 26 is changed. After determining the appropriate position, the locking nut 28 is tightened again to fix the first pressure plate 27.

[0034] A transmission plate 22 is vertically slidably connected to the support base 1. As a unified power input component, it is located directly above the second pressure plate 23 and the first pressure plate 27. During operation, the transmission plate 22 is pressed down by an external drive device, which synchronously pushes the first pressure plate 27 and the second pressure plate 23, thereby driving the two plungers to complete the material extraction or discharge action.

[0035] Regarding the blocking component:

[0036] The blocking assembly includes a movable stop 19 slidably connected to the lower cavity of the first piston cylinder 26, which is connected to the inner bottom wall of the first piston cylinder 26 via a first spring 110. In the initial state or at the beginning of the discharge stage, the movable stop 19, under the action of its own structure and the preload of the first spring 110, will block the inlet of the branch pipe, thereby cutting off the passage between the first piston cylinder 26 and the hose 111 and preventing incorrect material flow or mutual interference. When the oil pressure inside the first piston cylinder 26 reaches a certain value, the movable stop 19 can be pushed open to start oil discharge.

[0037] When the finished chili sauce needs to be bottled, first open the lid 12 of the second storage tank 11, put in the solid chili sauce, and then close the lid again; then start the motor 13 to drive the stirring rod 14 to rotate continuously, ensuring that the sauce is mixed evenly and preventing sedimentation. At the same time, inject the liquid chili oil into the first storage tank 16 through the funnel 15 and the connected pipeline for later use.

[0038] After the sauce is stirred evenly, open the valve of the second conveying pipe 18. Under the action of gravity, the solid sauce and liquid chili oil flow into the second piston cylinder 210 and the first piston cylinder 26 through the second conveying pipe 18 and the first conveying pipe 17, respectively, to complete the filling of the metering chamber.

[0039] The drive device controls the connecting plate 21 to drive the transmission plate 22 to move downward. The transmission plate 22 acts as a unified driving component, synchronously pressing down the first pressure plate 27 and the second pressure plate 23, thereby driving the first plunger 29 and the second plunger 25 to move downward in their respective piston cylinders.

[0040] The downward movement of the plunger increases the pressure inside the piston cylinder: under pressure, the sauce in the second piston cylinder 210 is directly forced into the hose 111. The chili oil pressure in the first piston cylinder 26 overcomes the preload of the first spring 110, pushing the movable stop 19 downward, thereby opening the branch inlet to the hose 111. The chili oil then flows into the middle section of the hose 111, where it undergoes initial mixing with the solid sauce flowing through it.

[0041] The mixed chili sauce is finally injected through the filling pipe 112 into the empty bottle directly below it, which is precisely delivered by the conveying component 3, thus completing the filling process.

[0042] After filling is completed, the drive unit pushes the transmission plate 22 upward to reset. Under the restoring force of the second spring 24 above the first plunger 29 and the second plunger 25, the two plungers drive their respective pressure plates to rise and reset synchronously. At this time, a negative pressure is formed in the piston cylinder. The movable stop 19 resets upward under the action of the first spring 110, re-closing the branch pipe inlet and cutting off the oil circuit.

[0043] Under atmospheric pressure, the material in the two storage tanks is automatically replenished through the conveying pipe into the reset piston cylinder, preparing for the next filling cycle.

[0044] The proportion of liquid chili oil in the product is adjusted by changing the height of the first pressure plate 27.

[0045] Increase the proportion: Loosen the locking nut 28 and adjust the first pressure plate 27 upward relative to the second pressure plate 23. When the transmission plate 22 is pressed down, the effective working stroke of the first plunger 29 increases, thereby discharging more chili oil.

[0046] Adjusting the ratio: Adjust the first pressure plate 27 downward relative to the second pressure plate 23. When the transmission plate 22 is pressed down, the effective working stroke of the first plunger 29 decreases, and the amount of chili oil discharged decreases accordingly.

[0047] This mechanical adjustment mechanism can precisely control the oil-to-soy sauce ratio of the product without replacing the hardware, significantly improving the equipment's adaptability to different formula requirements.

[0048] The drive device, as the core power and control system of this equipment, is specifically configured as follows: a cylinder 2 is installed on the support base 1, and a connecting plate 21 is fixedly connected to the top of the piston rod of the cylinder 2. This connecting plate 21 is then rigidly connected to the transmission plate 22.

[0049] Its functional role is as follows: it precisely and synchronously transmits the linear reciprocating motion of cylinder 2 to transmission plate 22 through connecting plate 21. Each downward movement of transmission plate 22 precisely triggers the filling process of the two piston cylinders; while each upward reset reliably starts the preparatory cycle for the next filling. By controlling the stroke frequency of cylinder 2, centralized control of filling rhythm and production capacity can be achieved.

[0050] On an automated filling line, empty bottles are continuously conveyed via conveyor assembly 3. To achieve accurate filling, the dynamic interception and precise positioning of empty bottles at the filling station must be addressed. Specifically, a mechanism is needed to block the continuously conveyed empty bottles, pausing them before filling; ensuring that the intercepted single empty bottle stops precisely below the filling pipe 112; and releasing the bottle after filling while simultaneously intercepting the next empty bottle, achieving uninterrupted cyclic filling. In existing technologies, simple single baffles can achieve interception, but they cannot simultaneously meet the requirements of precise positioning and continuous cyclic operation.

[0051] To solve the above problems, this equipment integrates a barrier assembly controlled by a single drive source, which alternately controls the movement of two baffles. Figure 4 As shown, the specific configuration is as follows: A lead screw 35 is rotatably connected to the support base 1 near the connecting plate 21 via a bearing seat. A rotating block 34, which can rotate with the lead screw 35, is fixedly connected to the lower end of the lead screw 35. A first positioning plate 32 and a second positioning plate 33 are hinged to the left and right ends of the rotating block 34, respectively. The two positioning plates are symmetrically distributed along the center line of the injection pipe 112 and are longitudinally slidably connected to the support base 1 via a linear guide rail.

[0052] Initial state: The left end of the rotating block 34 faces forward and the right end faces backward. This posture causes the first positioning plate 32 to extend forward, acting as the main interceptor across the path of the conveying component 3; while the second positioning plate 33 retracts backward, making way for the conveying channel.

[0053] As the conveying assembly 3 transports the empty bottles from left to right, the foremost empty bottle is intercepted and positioned by the extended first positioning plate 32. At this time, the empty bottle is located to the left of the first positioning plate 32 and has not yet reached the precise filling position directly below the filling tube 112.

[0054] When filling is required, the external drive device controls the lead screw 35 to rotate clockwise, causing the rotating block 34 to rotate synchronously. The rotation of the rotating block 34 couples the backward movement of its left end with the forward movement of its right end. The first positioning plate 32 is pulled backward and removed from the conveying path, releasing the interception of the first empty bottle. The second positioning plate 33 is pushed forward and extends into the conveying path.

[0055] At this instant of switching, the first empty bottle released continues to move forward under the action of the conveyor belt until it is intercepted again by the newly extended second positioning plate 33. This design ensures that the empty bottle is precisely blocked directly below the filling tube 112, and filling then begins.

[0056] After filling is completed, the lead screw 35 drives the rotating block 34 to rotate counterclockwise to reset. The first positioning plate 32 extends forward, and its front end precisely inserts into the gap between the filled bottle and the empty bottle to be filled behind it, intercepting the next empty bottle. The second positioning plate 33 retracts backward simultaneously, releasing the interception of the filled bottle.

[0057] The filled bottles move to the right under the action of the conveyor belt, entering the next process; while the next empty bottle, intercepted by the first positioning plate 32, is ready and waiting for the next cycle. Thus, through a single drive input, the linkage and alternating operation of the two positioning plates are realized, ensuring the continuity, accuracy and efficiency of the filling process.

[0058] In integrated automated equipment, efficiency and reliability are paramount. This equipment already has an independent filling power and bottle positioning mechanism (stopping assembly), but configuring a separate drive system (such as another motor 13) for the stopping assembly would lead to a complex equipment structure, increased costs, and difficulty in accurately synchronizing control timing.

[0059] Therefore, the core technical problem that urgently needs to be solved is: how to use the existing, periodically working filling power (cylinder 2) as the only power source, and through a reliable mechanical linkage mechanism, convert linear motion into rotational motion, thereby driving the blocking and releasing components to perform precise bottle positioning and release, and ensuring that the filling action and the bottle conveying rhythm are fully coordinated in time and space.

[0060] To solve the above problems, a linear-rotational motion conversion mechanism was designed to convert the linear motion of cylinder 2 into the rotational motion of lead screw 35, such as... Figure 4 As shown, the specific configuration is as follows: A sliding plate 36 is vertically slidably connected to the support base 1. The left side of the sliding plate 36 has an opening and is loosely fitted outside the lead screw 35. The surface of the lead screw 35 is precision machined with a continuous threaded annular groove. A guide protrusion is fixed to the inner side of the sliding plate 36. The protrusion is precisely embedded in the threaded groove of the lead screw 35, forming a helical pair transmission relationship.

[0061] A third spring 37 connects the slide plate 36 to the base plate of the support seat 1, and this spring is sleeved on the outside of the lead screw 35. In the initial state, the connecting plate 21 supports the slide plate 36 through a simple support structure, keeping it in a high position against the elastic force of the third spring 37. At this time, the third spring 37 is in an energy storage state, providing preset power for the subsequent movement of the slide plate 36.

[0062] When the equipment is in standby mode, the piston rod of cylinder 2 is extended, and the connecting plate 21 is in a high position. At this time, the connecting plate 21 supports the sliding plate 36, causing it to compress the third spring 37. In this state, the third spring 37 stores sufficient elastic potential energy, the lead screw 35 and the blocking assembly remain stationary, and the bottle is prepared for interception by the first positioning plate 32.

[0063] When the filling cycle starts, cylinder 2 drives connecting plate 21 and transmission plate 22 to move downwards. At the same time as transmission plate 22 begins to press down on the filling assembly pressure plate, connecting plate 21 also releases its constraint on slide plate 36.

[0064] The released slide plate 36, under the strong restoring force of the third spring 37, slides downward at high speed along the lead screw 35. Because its internal guide protrusion is confined within the threaded groove of the lead screw 35, the downward linear motion is forcibly converted into a precise rotational motion (clockwise) of the lead screw 35. The rotation of the lead screw 35 directly drives the rotating block 34 to rotate, thereby pushing the barrier assembly to complete the switching from the first positioning plate 32 to the second positioning plate 33, precisely positioning the empty bottle at the filling port.

[0065] After filling is complete, cylinder 2 retracts, causing connecting plate 21 to rise. During the ascent, connecting plate 21 recaptures and lifts slide plate 36, causing it to slide upward along the threaded groove of lead screw 35. This reverse motion also drives lead screw 35 to rotate counterclockwise via the helical pair, resetting the blocking assembly to its initial state and simultaneously compressing the third spring 37 again to store energy for the next cycle.

[0066] Thus, the linkage component has successfully achieved the following: by using the power of a single cylinder 2, through spring energy storage and release and helical pair transmission, the filling action and bottle positioning action are perfectly coupled in time, ensuring the continuity, accuracy and efficiency of the entire automated process.

[0067] During the filling process, if bottles are freely transported on the conveyor belt, their positions may deviate randomly, causing the center of the bottle neck to misalign with the center of the filling tube 112. This misalignment can lead to spillage of filling material, contamination of the bottle and equipment, material waste, and increased cleaning costs. Therefore, it is necessary to solve the problem of automatic bottle alignment during the conveying stage to ensure that the axis of the bottle neck of each empty bottle is precisely aligned with the axis of the filling tube 112 when it arrives at the filling station.

[0068] To solve the aforementioned alignment problem, this equipment incorporates an adjustable V-shaped guide mechanism on the conveyor assembly 3. For example... Figure 1 As shown, specifically, two adjustable guide baffles 31 are symmetrically slidably connected above the conveyor belt. The left ends (i.e., the inlet ends) of the two baffles are arranged in a figure-eight shaped funnel structure, forming a gradually narrowing guide channel. The width of this channel can be adjusted by sliding the baffles to accommodate bottles of different diameters.

[0069] When the empty bottle is placed on the left side of the conveyor assembly 3, as the conveyor belt moves to the right, the bottle first enters the figure-eight shaped entrance formed by the left ends of two adjustable guide baffles 31. When the bottle body contacts the inclined surface of the baffle, under the continuous conveying force, the bottle experiences a lateral force pointing towards the center line of the conveyor belt. This force will push the bottle to overcome the friction with the conveyor belt, causing it to automatically adjust its lateral position.

[0070] After being gradually corrected in the figure-eight shaped area, the bottle finally enters the parallel guide section formed by two baffles. At this point, the centerline of the bottle has been forcibly aligned with the centerline of the conveyor belt, that is, coincident with the axis of the filling tube 112 fixed in the center position. Subsequently, under the constraint of the parallel guide baffles, the bottle is accurately transported to the filling station while maintaining its centered state, ensuring that there is no splashing or leakage during the filling process.

[0071] Thus, through its geometric design, the centering guide component efficiently transforms the longitudinal movement of the conveyor belt into the lateral self-centering movement of the bottle, solving the core problem of filling alignment in a purely mechanical way and ensuring clean and efficient production.

[0072] Example 2: During intermittent filling, material remains on the inner wall of the filling pipe 112 after filling. If the outlet of the filling pipe 112 remains open, during non-filling periods (such as when switching bottles), the residual droplets (especially chili oil) will drip uncontrollably, causing the following problems: contaminating the conveyor belt, filled bottles, and the equipment itself; resulting in material loss; and increasing the cleaning and maintenance burden of the production line.

[0073] Furthermore, if the outlet is too far from the bottle opening during filling, the sauce may splatter under pressure, leading to waste and contamination. Therefore, a mechanism is urgently needed that can simultaneously achieve this: sealing the injection tube 112 when not filling, and lowering it to insert it into the bottle opening during filling.

[0074] To solve the above problems, this equipment is designed with an integrated opening, closing, and lifting enclosure component, such as... Figure 4 As shown, its core structure is as follows: On the support base 1, directly opposite the top inlet of the injection tube 112, there is a fixed material plug 45, the size of which is precisely matched with the inner diameter of the injection tube 112, for sealing the outlet of the hose 111 from the inside.

[0075] A rotating stop 46 is provided on the outer side of the bottom outlet of the injection pipe 112. The rotating stop 46 is slidably connected to a spiral guide post 47 fixed to the support base 1. The protrusion on the inner side of the rotating stop 46 is embedded in the threaded slide of the guide post, forming a spiral drive pair. A fifth spring 49, sleeved on the spiral guide post 47, is connected between the rotating stop 46 and the support base 1 to provide the reset power.

[0076] The injection pipe 112 is vertically slidably connected to the support base 1 via a counterweight 1121 fixed at the top. A lifting block 48 is fixed at its lower end, which is also sleeved on the spiral guide post 47 and located below the rotating stop block 46.

[0077] Initial state: The connecting plate 21 supports the counterweight 1121, keeping the injection tube 112 at its highest position. At this time, the fixed material plug 45 is tightly inserted into the top of the injection tube 112 to achieve an upper seal; at the same time, the lifting block 48 lifts the rotating stop block 46 and compresses the fifth spring 49. Under the constraint of the spiral guide post, the rotating stop block 46 rotates to the bottom outlet of the sealed injection tube 112 to achieve a lower seal.

[0078] When cylinder 2 drives connecting plate 21 to move downward, it releases the constraint on counterweight 1121. Under the gravity of counterweight 1121, injection pipe 112 and lifting block 48 move downward as a whole.

[0079] The lifting block 48 moves downward and no longer blocks the rotating stop 46. Driven by the fifth spring 49, the rotating stop 46 moves downward and rotates along the slide of the spiral guide post 47, thus opening the bottom outlet. The injection tube 112 moves downward, causing a relative displacement between its top inlet and the fixed material plug. The material plug gradually retracts, thereby opening the outlet channel of the hose 111. The lower end of the injection tube 112 then descends and is precisely inserted into the already positioned neck of the empty bottle.

[0080] At this point, both the upper and lower channels are open, and the injection tube 112 extends into the bottle opening. Under the pressure of the plunger, the sauce is injected directly into the bottom of the bottle from the hose 111 through the injection tube 112 within the sealed channel, effectively preventing splashing, dispersion, and dripping.

[0081] When cylinder 2 drives connecting plate 21 to rise, connecting plate 21 lifts counterweight 1121 again, driving injection pipe 112 and lifting block 48 to rise as a whole.

[0082] The lifting block 48 rises, pushing the rotating stop block 46 to move upwards and rotate in the opposite direction along the spiral guide post 47 until it resets and re-seals the bottom outlet. The injection pipe 112 continues to rise, and its top inlet is once again tightly blocked by the fixed material plug 45, cutting off the sauce source.

[0083] Thus, the closed component, through a linkage drive, perfectly realizes the automated cycle of "open-lower-fill-rise-close" of the filling tube 112, fundamentally solving the problems of dripping and splashing, and ensuring the cleanliness and efficiency of the filling process.

[0084] During the filling process, if the filling tube 112 is inserted too deeply into the bottle opening, two main problems will occur: when the liquid level in the bottle rises, it will submerge the outlet of the filling tube 112, causing sauce to adhere to the outer wall of the tube. After filling is completed, when the filling tube 112 is lifted and reset, the sauce adhering to its outer wall will drip onto the conveyor belt, the bottle body, or other equipment parts, causing waste and increasing the cleaning burden.

[0085] Therefore, a mechanism is needed to precisely limit the descent depth of the filling tube 112, ensuring that its outlet end maintains a safe distance from the preset liquid level in the bottle, thereby achieving non-contact filling or shallow insertion filling and avoiding contamination of the tube.

[0086] To address the issue of controlling the insertion depth of the injection tube 112, this equipment incorporates a mechanical depth limiting mechanism on the injection tube 112. For example... Figure 4 As shown, specifically, at least two height positioning blocks 38 are symmetrically fixed to the outer wall of the injection tube 112 near the bottom outlet. The lower surface of the positioning block is precisely calculated and machined, and its distance from the outlet end face of the injection tube 112 is designed to be the optimal insertion depth.

[0087] When the dispensing tube 112 descends to the preset safe insertion depth, the lower surface of the height positioning block 38 contacts the upper surface of the bottle opening. The bottle body supports the height positioning block 38 through the bottle opening, thereby reliably preventing the dispensing tube 112 from descending further. At this time, the outlet end of the dispensing tube 112 is stably suspended at a pre-calculated ideal height inside the bottle.

[0088] During filling in this state, the liquid level inside the bottle will not contact the outer wall of the filling tube 112 as it rises, thus completely preventing the sauce from adhering to the tube. After filling, the filling tube 112 returns to its original position, its outer wall clean and free of sauce drips, ensuring the cleanliness of the equipment and the environment.

[0089] Thus, this height positioning component, through an extremely simple and reliable mechanical structure, precisely controls the depth of the lower tube, fundamentally preventing material waste and secondary pollution caused by tube contamination, and improving the cleanliness and automation level of the filling process.

[0090] When filling high-viscosity sauces (such as chili sauce), the material tends to adhere to the inner wall of the filling tube 112, leading to two core problems: the residue on the tube wall causes deviations in the actual filling volume each time, affecting the consistency and standardization of product weight; after filling, during the relocation of the filling tube 112, residual liquid (especially oil) on its inner wall and at the outlet will drip down, contaminating the filling head, conveyor line, bottle body and equipment, not only causing material waste, but also seriously affecting the cleanliness of the production environment and increasing cleaning and maintenance costs.

[0091] Therefore, there is an urgent need for a mechanism that can automatically clean the inner wall of the filling tube 112 after each filling to ensure accurate metering and clean production.

[0092] To achieve automatic cleaning of the injection pipe 112, this equipment integrates a pneumatic purging system driven by the main engine. For example... Figure 5 and Figure 6As shown, the specific configuration is as follows: A third piston cylinder 4 is fixedly connected to the support base 1; a third plunger 42 slides vertically on the bracket 101 and is connected to the bracket 101 by a fourth spring 44; a third pressure plate 43 is fixedly connected to the third plunger 42, which is located directly below the transmission plate 22, so that the transmission plate 22 can apply pressure to it at the end of the downward movement. The upper part of the third plunger 42 extends into the third piston cylinder 4 and slides and seals with it.

[0093] The third piston cylinder 4 is connected to the upper part of the injection pipe 112 via an air pipe 41. The third piston cylinder 4 is equipped with an air inlet branch pipe with a one-way valve; the air inlet end of the air pipe 41 is also equipped with a one-way valve. These two one-way valves together form a one-way airflow channel, ensuring that external air can only enter the piston cylinder through the air inlet branch pipe, while the compressed air inside the piston cylinder can only enter the injection pipe 112 through the air pipe 41.

[0094] Key timing design: The downward stroke of the transmission plate 22 is designed to be greater than the downward stroke of the filling tube 112. This ensures that the action sequence is as follows: the filling tube 112 descends first and is inserted into the bottle mouth for positioning → the transmission plate 22 continues to descend, driving the filling assembly to fill and simultaneously compressing the third piston cylinder 4 to store energy.

[0095] As the transmission plate 22 descends, it first drives the filling tube 112 to descend and insert into the bottle mouth. The transmission plate 22 continues to descend, pushing the first pressure plate 27 and the second pressure plate 23 to perform the filling operation.

[0096] Simultaneously, at the end of its stroke, the transmission plate 22 presses down on the third pressure plate 43, causing the third plunger 42 to move downward and compress the fourth spring 44. At this time, the volume of the inner cavity of the third piston cylinder 4 increases, creating a negative pressure. External air pushes open the one-way valve of the intake manifold and enters the cylinder, completing the storage of compressed air.

[0097] After filling is completed, the transmission plate 22 moves upward. During the critical time window when the transmission plate 22 disengages from the third pressure plate 43 but has not yet lifted the injection tube 112, the compressed fourth spring 44 drives the third plunger 42 to move upward rapidly.

[0098] The third plunger 42 compresses the air in the third piston cylinder 4, increasing its pressure. At this time, the one-way valve of the intake branch pipe closes, and the high-pressure air pushes open the one-way valve on the air pipe 41, forming a high-speed airflow, which is injected from the top of the injection pipe 112 through the air pipe 41.

[0099] This high-speed airflow instantly sweeps the inner wall of the dispensing tube 112, thoroughly blowing the remaining sauce and oil into the bottle below. After the sweeping is complete, the transmission plate 22 continues to move upward, driving the dispensing tube 112 to lift and reset, preparing for the next cycle.

[0100] Thus, through ingenious timing design and linkage, this gas injection cleaning component automatically performs a highly efficient pneumatic cleaning of the injection tube 112 after each filling, utilizing the same power source. This not only ensures accurate and consistent filling volume for each bottle of product but also fundamentally solves the problem of residual liquid leakage and contamination, achieving clean, high-precision, and automated production.

[0101] It should be understood that the above description is for illustrative purposes only and is not intended to limit the invention. Those skilled in the art will understand that variations of the invention are included within the scope of the claims herein.

Claims

1. A finished chili sauce filling device, comprising a support base (1) as the main load-bearing structure, characterized in that: it also... include: A solid sauce supply system includes a second storage tank (11) fixed to a support base (1), a motor (13) mounted on top of the tank, a cover (12) covering the tank, and a stirring rod (14) extending into the tank; a liquid oil supply system includes a first storage tank (16) fixed to a support base (1) via a bracket (101) and a funnel (15) connected thereto; a precision quantitative filling system includes a first piston cylinder (26) and a second piston cylinder (210) fixed side-by-side to a bracket (101), the first piston cylinder (26) being connected to the first storage tank (16) via a first conveying pipe (17), and the second piston cylinder (210 ... The cylinder (210) is connected to the second storage tank (11) through the second conveying pipe (18); the mixing output system includes a hose (111) and an injection pipe (112), the hose (111) connecting the second piston cylinder (210) and the injection pipe (112), and the first piston cylinder (26) flowing into the middle section of the hose (111) through a branch pipe; the power drive system includes a cylinder (2) mounted on the support base (1), a connecting plate (21) fixedly connected to the piston rod of the cylinder (2), and a transmission plate (22) fixedly connected to the connecting plate (21); the bottle conveying system includes a conveying assembly (3) located on the front side of the support base (1).

2. The finished chili sauce filling equipment according to claim 1, characterized in that: The precise quantitative filling system includes a proportionally adjustable filling assembly, which includes: a first plunger (29) slidably connected in a first piston cylinder (26) and a second plunger (25) slidably connected in a second piston cylinder (210). The first plunger (29) and the second plunger (25) are both vertically slidably connected to a bracket (101), and both are connected to the bracket (101) by a second spring (24); a second pressure plate (23) fixed to the second plunger (25); a first pressure plate (27) threadedly connected to the first plunger (29) by a locking nut (28); and a transmission plate (22) located directly above the first pressure plate (27) and the second pressure plate (23).

3. The finished chili sauce filling equipment according to claim 1, characterized in that: The precise quantitative filling system also includes a blocking component located in the first piston cylinder (26), which includes: a movable stop (19) slidably disposed in the lower cavity of the first piston cylinder (26); a first spring (110) connected between the movable stop (19) and the bottom wall of the first piston cylinder (26); in the initial state, the movable stop (19) blocks the inlet of the branch pipe.

4. The finished chili sauce filling equipment according to claim 1, characterized in that: The bottle conveying system also includes a blocking assembly, which includes: a lead screw (35) rotatably connected to the support base (1); a rotating block (34) fixed to the lower end of the lead screw (35); a first positioning plate (32) and a second positioning plate (33) respectively hinged to the left and right ends of the rotating block (34), the two positioning plates being symmetrically distributed along the center line of the injection pipe (112) and longitudinally slidably connected to the support base (1).

5. The finished chili sauce filling equipment according to claim 4, characterized in that: It also includes a linkage component for driving the barrier assembly, which includes: a sliding plate (36) vertically slidably connected to the support base (1), which is loosely fitted outside the lead screw (35) and has a guide protrusion on its inner side; the surface of the lead screw (35) has a continuous threaded groove, and the guide protrusion is embedded in the groove; a third spring (37) connected between the sliding plate (36) and the bottom of the support base (1); in the initial state, the connecting plate (21) supports the sliding plate (36) and compresses the third spring (37).

6. The finished chili sauce filling equipment according to claim 1, characterized in that: The bottle conveying system also includes a central guide component on the conveying component (3), which includes two adjustable guide baffles (31) that are symmetrically slidably connected front and rear, with the inlet ends of the two baffles arranged in a figure-eight shape.

7. The finished chili sauce filling equipment according to claim 1, characterized in that: It also includes a sealing assembly for controlling the opening, closing and lifting of the injection tube (112), which includes: a fixed material plug (45) fixed to the support base (1) for sealing the top of the injection tube (112); a rotating stop (46) slidably connected to the support base (1) via a spiral guide post (47), the inner protrusion of which is embedded in the threaded slide of the guide post, and a fifth spring (49) is connected between the stop and the support base (1); a counterweight (1121) fixed to the upper part of the injection tube (112), the injection tube (112) being vertically slidably connected to the support base (1) via the counterweight (1121); and a lifting block (48) fixed to the lower part of the injection tube (112), which is sleeved on the spiral guide post (47) and located below the rotating stop (46).

8. The finished chili sauce filling equipment according to claim 7, characterized in that: The injection pipe (112) has height positioning blocks (38) symmetrically fixed to the outer wall near the bottom outlet.

9. The finished chili sauce filling equipment according to claim 8, characterized in that: It also includes an air-injection cleaning assembly for cleaning the inner wall of the injection pipe (112), which includes: a third piston cylinder (4) fixed to the support base (1); a third plunger (42) vertically slidably connected to the bracket (101), the upper part of which extends into the third piston cylinder (4) and is connected to the bracket (101) through a fourth spring (44); a third pressure plate (43) fixed to the third plunger (42), which is located directly below the transmission plate (22); and an air pipe (41) connecting the third piston cylinder (4) and the upper part of the injection pipe (112); the third piston cylinder (4) is provided with an air inlet branch pipe with a first one-way valve, and the air inlet end of the air pipe (41) is provided with a second one-way valve.

10. The finished chili sauce filling equipment according to claim 1, characterized in that: The downward working stroke of the transmission plate (22) is greater than the downward stroke of the injection tube (112).

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