Auxiliary material cooperative feeding device and hamburger production line

Abstract

The application discloses a kind of auxiliary material collaborative feeding device and hamburger production line, it is related to food machinery technical field, and auxiliary material collaborative feeding device includes: rack and sauce conveying mechanism;Sauce conveying mechanism includes inner cylinder, outer cylinder, piston, first linear actuator and second linear actuator, outer cylinder is fixedly sleeved in the periphery of inner cylinder, and the storage cavity for storing sauce is formed between the two;The upper end of inner cylinder is equipped with inlet, and the lower end is equipped with discharge port;Inner cylinder wall is equipped with the injection hole that is communicated with storage cavity, and the injection hole is evenly distributed along circumference direction;Piston is slidably sealed and installed in storage cavity.Jet sauce to the surface of hamburger blank through injection hole, form basic sauce layer, then secondary injection sauce when vegetable material falls, vegetable material, especially its edge area is coated, greatly improve the adhesion of vegetable material on hamburger, and inner cylinder is positioned to vegetable material, controls vegetable material drop point, significantly reduce the scattering of vegetable material in transportation and subsequent packaging process.

Description

Technical Field

[0001] This invention relates to the field of food machinery technology, and in particular to a feeder for auxiliary materials and a hamburger production line. Background Technology

[0002] With the rapid development of the fast food industry, hamburgers, as a typical representative product, have seen continuous improvements in the automation level of their production process to meet the demands of large-scale, high-efficiency, and standardized production. Automated hamburger production lines typically include bun baking stations, topping addition stations, and meat addition stations. The topping addition station requires the accurate and even application of sauces, shredded lettuce, and other vegetable toppings onto the hamburger bun. The quality of topping addition directly determines the hamburger's appearance, consistency of taste, as well as the stability and hygiene of the production line.

[0003] In existing technologies, sauces and shredded lettuce are often added separately. For example, the "Automatic Hamburger Making Machine" (publication number CN104172203A) uses a cross-shaped rotating sauce gun mechanism to extrude sauce, and then an automatic lettuce feeding mechanism delivers lettuce onto the hamburger. While this type of structure can achieve basic automation, it has the following problems:

[0004] The shredded lettuce is light, smooth, and loose. During the laying process, the shredded lettuce in the edge area is easy to fall off the hamburger bun and onto the outside. This not only requires operators to frequently clean the production table and conveyor belt, increasing labor intensity and production downtime, but also makes it easy for the scattered shredded lettuce to mix into the packaging film during the subsequent packaging process, affecting the hygiene quality and appearance of the product.

[0005] Scattered lettuce leaves result in uneven distribution of lettuce in the finished burger, with some areas having too much lettuce and others having almost none, which disrupts the overall appearance and taste consistency of the burger and reduces consumers' willingness to buy.

[0006] To address the aforementioned issues, the patent application CN120919874A, titled "A Mixing and Feeding Device for Auxiliary Materials and a Hamburger Production Line," proposes pre-mixing the sauce and shredded lettuce within a drum, then pressing it through an inner spiral blade and spreading it onto the hamburger bun via an outlet head. This allows the sauce to coat the shredded lettuce, improving adhesion and reducing spillage. While this solution improves the lettuce spillage problem to some extent, it requires pre-mixing the sauce and shredded lettuce before addition, a time-consuming process. Furthermore, to ensure smooth conveying, the lettuce must be thoroughly pulverized into smaller particles; otherwise, blockage can easily occur at the outlet head. It also struggles to handle long, thin vegetables or larger vegetable particles, limiting its applicability.

[0007] Therefore, it is necessary to provide a supplementary material feeding device and a hamburger production line that can achieve orderly feeding of ingredients and sauces without the need for pre-mixing sauces and ingredients, thereby improving the adhesion and laying quality of ingredients on hamburgers. Summary of the Invention

[0008] The purpose of this invention is to overcome the shortcomings of existing technologies where sauces and vegetables are added separately, resulting in vegetables being easily scattered and unevenly distributed, and the premixed structure greatly restricting the shape of vegetables. This invention provides a supplementary material co-feeding device and a hamburger production line, which allows the sauce to be sprayed and coated reasonably before and after the vegetables fall, especially enhancing the adhesion of the vegetable edges. At the same time, the cylindrical structure limits the landing point of the vegetables, thereby reducing the scattering and waste of lettuce pieces or other vegetables during the production process, improving the uniformity and appearance of hamburger toppings, and adapting to various shapes of vegetables such as long strips and slices.

[0009] To achieve the above objectives, in one respect, the present invention provides an auxiliary material co-feeding device, comprising:

[0010] frame;

[0011] The sauce conveying mechanism includes an inner cylinder, an outer cylinder, a piston, a first linear actuator, and a second linear actuator.

[0012] The outer cylinder is fixedly fitted around the inner cylinder, and the two form a storage cavity for storing sauces.

[0013] The inner cylinder has a feed inlet at the top and a discharge outlet at the bottom.

[0014] The inner cylinder wall is provided with injection holes that communicate with the storage chamber, and the injection holes are evenly distributed along the circumference;

[0015] The piston sliding seal is installed inside the storage chamber;

[0016] The first linear actuator can drive the piston to descend axially along the storage chamber. When the piston descends, it forces the sauce in the storage chamber out through the injection hole into the inner cylinder and finally discharges it from the outlet.

[0017] When ingredients are added to the inner cylinder, the sprayed sauce comes into contact with the falling ingredients to bind them together and prevent them from falling apart.

[0018] The second linear actuator is mounted on the frame and is used to drive the sauce conveying mechanism to lift and lower as a whole, so that the lower end of the inner cylinder can descend above and close to the hamburger bun during operation.

[0019] Preferably, the auxiliary material co-feeding device further includes:

[0020] A vegetable feeding mechanism is used to quantitatively and continuously feed vegetables into an inner cylinder. The vegetable feeding mechanism includes: a rotary power element, a conveying cylinder, a drive shaft, spiral blades, a storage hopper, and a discharge cylinder.

[0021] in:

[0022] Both the rotating power component and the conveyor cylinder are fixedly connected to the frame.

[0023] The drive shaft is rotatably connected to the conveyor cylinder and is connected to the output end of the rotating power element.

[0024] The spiral blades are installed inside the conveying cylinder and are fixedly connected to the drive shaft on the same axis, which is used to push the vegetables to be conveyed along the direction of the conveying cylinder.

[0025] The lower end of the conveyor cylinder is fixedly connected to a discharge cylinder that communicates with it;

[0026] The conveying cylinder is set horizontally, and the discharge cylinder is set vertically. The axis of the discharge cylinder is set parallel to the axis of the inner cylinder. The lower end of the discharge cylinder extends into the inlet, so that the vegetables output by the vegetable conveying mechanism are guided into the inner cavity of the inner cylinder and fall down along the axis of the inner cylinder.

[0027] A storage hopper connected to the conveyor cylinder is fixed on the upper side of the conveyor cylinder away from the discharge cylinder, which is used to store the vegetables to be conveyed.

[0028] Preferably, to improve the stability and anti-clogging performance of the sauce spraying process, a scraper baffle is provided inside the inner cylinder. The scraper baffle is fixedly connected to the discharge cylinder and contacts the inner wall of the inner cylinder; wherein:

[0029] When the inner cylinder is at the top dead center, the scraper and baffle block closes the spray hole to prevent the sauce from flowing out of the spray hole in a disorderly manner.

[0030] When the inner cylinder is at the bottom dead center, the scraper baffle is positioned above the spray hole, keeping the spray hole open and facilitating smooth sauce spraying. When the sauce conveying mechanism rises, the scraper baffle scrapes away any residual sauce near the spray hole, reducing material accumulation.

[0031] Preferably, the spray holes are arranged in multiple layers from top to bottom along the axial direction of the inner cylinder, and the spray holes in each layer are arranged alternately in the circumferential direction to form a relatively uniform annular spray surface, which facilitates the formation of a coating layer on the inner wall of the inner cylinder, thereby achieving full adhesion during the falling of the food.

[0032] Preferably, the sauce conveying mechanism further includes a lifting frame, and the mounting end of the first linear actuator, the output end of the second linear actuator, and the outer cylinder are all fixedly connected to the lifting frame. The second linear actuator drives the lifting frame and the sauce conveying mechanism mounted on it to lift as a whole, resulting in a compact structure.

[0033] Preferably, a push rod is fixed to the upper end of the piston, and a push plate is fixed to the upper end of the push rod. An elastic element, such as a compression spring or a spring damper, is installed at the output end of the first linear actuator. The elastic element is connected to the push plate. The elastic element absorbs the impact and provides a rebound force, making the piston move more buffered at the end of the stroke, improving the injection stability and extending the service life of the mechanism.

[0034] The piston is equipped with a sauce inlet pipe and a vent pipe, both of which are connected to the storage chamber. Both pipes have removable, sealable plugs at their tops. Both pipes are also fixedly connected to a push plate. The sauce inlet pipe serves as a dedicated replenishment channel for the storage chamber. After removing the plugs from both pipes, sauce is added to the storage chamber through the sauce inlet pipe, while air in the storage chamber is expelled through the vent pipe. The plugs can be threaded seal plugs, which, after replenishment, seal the sauce inlet and vent pipes to prevent sauce from overflowing due to pressure generated by piston movement, and also prevent dust and impurities from entering the storage chamber, thus meeting food hygiene standards.

[0035] Both the sauce inlet pipe and the vent pipe are fixedly connected to the push plate, which can improve the connection strength between the push plate and the piston, avoid excessive force on the push rod, and make the piston movement more stable.

[0036] By introducing clean gas at a certain pressure into the sauce inlet pipe and / or vent pipe, the sauce in the storage chamber is forced out through the injection hole, thereby improving the sauce utilization rate and avoiding excessive waste caused by sauce that cannot be squeezed out by the piston.

[0037] When the storage chamber needs to be cleaned, high-pressure clean water or food-grade cleaning agent can be injected into the sauce addition pipe and / or drain pipe. The cleaning wastewater and residual sauce can be quickly discharged through the spray hole.

[0038] Preferably, the inner cylinder and the outer cylinder are coaxially fixedly connected, and the storage cavity is an annular cavity, which is used to uniformly arrange the spray holes in the circumferential direction to ensure the consistency of the sauce spraying in the circumferential direction.

[0039] Preferably, the outer cylinder includes an upper coarse-diameter cylinder section and a lower fine-diameter cylinder section, with the inner diameter of the coarse-diameter cylinder section being larger than that of the fine-diameter cylinder section. The injection hole is located inside the fine-diameter cylinder section and below the coarse-diameter cylinder section, and the piston moves within the coarse-diameter cylinder section. This coarse-and-fine cylinder structure increases the upper material storage space while reducing the cross-sectional size of the injection area, facilitating the formation of a stable injection pressure, and preventing the piston from closing the injection hole.

[0040] On the other hand, the present invention also provides a hamburger production line, including any of the above-described auxiliary material co-feeding devices.

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

[0042] 1. By spraying sauce before the ingredients fall onto the hamburger bun, a base sauce layer is formed on the surface of the hamburger bun; by spraying sauce as the ingredients fall, the sauce coats the ingredients, especially the edge areas, which greatly improves the adhesion of the ingredients to the hamburger and significantly reduces the spillage of ingredients during transportation and subsequent packaging.

[0043] 2. When working, the inner cylinder moves down and gets close to the hamburger bun. The falling ingredients are confined to the lower part of the inner cylinder, which controls the landing point of the ingredients and prevents them from scattering outward. This ensures that the ingredients mainly fall in the effective area of ​​the hamburger bun, which is beneficial to the neat appearance of the finished product.

[0044] 3. Sauces and vegetables do not need to be pre-mixed in the equipment. Instead, they come into contact and coat each other online as the vegetables fall naturally. This is suitable for vegetables in various shapes, such as fragments, strips, or flakes. It eliminates the requirement for vegetables to be crushed into extremely small particles, reducing processing steps and avoiding the problem of poor conveying of long and strip-shaped vegetables in traditional mixing and conveying structures. Attached Figure Description

[0045] Figure 1 A perspective view of the auxiliary material co-feeding device and hamburger production line provided in the embodiments of this application;

[0046] Figure 2 Right view of the auxiliary material co-feeding device and hamburger production line provided in the embodiments of this application;

[0047] Figure 3 for Figure 2 Sectional view along line AA;

[0048] Figure 4 for Figure 3 A magnified view of a section at point B in the middle;

[0049] Figure 5 An exploded view of the sauce conveying mechanism provided in the embodiments of this application (omitting the first linear actuator, the second linear actuator, and the lifting frame);

[0050] Figure 6 A diagram showing the working state of the auxiliary material co-feeding device provided in the embodiments of this application (with the inner cylinder at the bottom dead center).

[0051] In the diagram, 100 is the frame; 200 is the sauce conveying mechanism; 201 is the inner cylinder; 2011 is the inlet; 2012 is the outlet; 2013 is the spray nozzle; 202 is the outer cylinder; 2021 is the coarse-diameter cylinder section; 2022 is the fine-diameter cylinder section; 203 is the piston; 2031 is the first sealing ring; 2032 is the second sealing ring; 204 is the first linear actuator; 205 is the second linear actuator; 206 is the lifting frame; and 207 is the... Storage chamber; 208, scraper and baffle cylinder; 2081, third sealing ring; 2082, fourth sealing ring; 209, push rod; 210, push plate; 211, elastic element; 212, sauce inlet pipe; 213, drain pipe; 214, plug; 215, vertical rod; 300, vegetable conveying mechanism; 301, rotary power element; 302, conveying cylinder; 303, drive shaft; 304, spiral blade; 305, storage hopper; 306, discharge cylinder. Detailed Implementation

[0052] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0053] Please see Figures 1 to 6 This application provides an auxiliary material feeding device, including a frame 100 and a sauce conveying mechanism 200.

[0054] The sauce conveying mechanism 200 includes an inner cylinder 201, an outer cylinder 202, a piston 203, a first linear actuator 204, a second linear actuator 205, and a lifting frame 206.

[0055] The outer cylinder 202 is fixedly fitted around the inner cylinder 201, and the two are arranged coaxially, forming a storage cavity 207 for storing sauces.

[0056] The inner cylinder 201 has a feed inlet 2011 at the upper end and a discharge outlet 2012 at the lower end. The inner diameter of the discharge outlet 2012 is the same as the inner diameter of the inner cylinder 201, meaning that there is no obstruction inside the discharge outlet 2012, ensuring that the auxiliary materials can be fed smoothly.

[0057] The inner cylinder 201 has injection holes 2013 that communicate with the storage chamber 207. The holes are 1 mm in diameter and are evenly distributed around the circumference. The included angle between adjacent injection holes 2013 is 12°. All injection holes 2013 face the central axis of the inner cylinder 201.

[0058] The piston 203 is slidably sealed and installed in the storage chamber 207. The piston 203 has an annular structure. An outer annular groove is provided on the outer wall of the piston 203. A first sealing ring 2031 is installed on the outer annular groove. The first sealing ring 2031 is slidably sealed and connected to the inner wall of the outer cylinder 202. A second sealing ring 2032 is installed on the inner annular groove. The second sealing ring 2032 is slidably sealed and connected to the outer wall of the inner cylinder 201.

[0059] The first linear actuator 204 drives the piston 203 to descend axially along the storage chamber 207. As the piston 203 descends, it forces the sauce in the storage chamber 207 through the spray hole 2013 to the inside of the inner cylinder 201, and finally discharges it through the outlet 2012. The first linear actuator 204 is an electric cylinder, or a servo-controlled pneumatic cylinder, servo-controlled hydraulic cylinder, or other linear actuators that can precisely drive the piston 203 to descend axially along the storage chamber 207 a preset distance, thereby controlling the amount of sauce sprayed out. The mounting end of the first linear actuator is its cylinder body.

[0060] When ingredients are added into the inner cylinder 201, the sprayed sauce comes into contact with the falling ingredients to bind them together and prevent them from falling apart.

[0061] The second linear actuator 205 is mounted on the frame 100 and is used to drive the sauce conveying mechanism 200 to lift and lower as a whole, so that the lower end of the inner cylinder 201 can descend to above and close to the hamburger bun during operation. The second linear actuator 205 is selected from linear actuators such as pneumatic cylinders, hydraulic cylinders, and electric cylinders that can drive the sauce conveying mechanism 200 to perform linear motion;

[0062] The mounting end of the first linear actuator 204, the output end of the second linear actuator 205, and the outer cylinder 202 are all fixedly connected to the lifting frame 206. The second linear actuator 205 drives the lifting frame 206 and the sauce conveying mechanism 200 installed on it to lift as a whole.

[0063] In some embodiments, a food conveying mechanism 300 is also provided to quantitatively and continuously feed the ingredients into the inner cylinder 201. Please refer to [link to relevant documentation]. Figures 1 to 3 The vegetable material conveying mechanism 300 includes: a rotary power element 301, a conveying cylinder 302, a drive shaft 303, a spiral blade 304, a storage hopper 305, and a discharge cylinder 306.

[0064] The rotating power element 301 and the conveying cylinder 302 are both fixedly connected to the frame 100.

[0065] The drive shaft 303 is coaxially arranged with the conveying cylinder 302. A bearing seat is fixed on the conveying cylinder 302, and the drive shaft 303 is installed in the bearing in the bearing seat to achieve a rotational connection with the conveying cylinder 302. The rotary power element 301 is a stepper motor, and the output end of the rotary power element 301 is connected to the drive shaft 303 through a coupling.

[0066] The spiral blade 304 is disposed inside the conveying cylinder 302 and is coaxially and fixedly connected to the drive shaft 303, and is used to push the food to be conveyed along the direction of the conveying cylinder 302.

[0067] The lower end of the conveying cylinder 302 is fixedly connected to the discharge cylinder 306, which is used to discharge the food pushed by the spiral blades 304.

[0068] The conveying cylinder 302 is set horizontally, and the discharge cylinder 306 is set vertically. The discharge cylinder 306 is cylindrical, and its axis is parallel to the axis of the inner cylinder 201. The lower end of the discharge cylinder 306 extends into the inlet 2011, so that the vegetables output by the vegetable conveying mechanism 300 are guided into the inner cavity of the inner cylinder 201 and fall down along the axial direction of the inner cylinder 201.

[0069] A storage hopper 305 connected to the conveying cylinder 302 is fixed on the side of the upper end of the conveying cylinder 302 away from the discharge cylinder 306. The conveying cylinder 302 and the storage hopper 305 are set vertically, and the storage hopper 305 is used to store the vegetables to be conveyed.

[0070] With the above structure, the ingredients are pushed along the conveying cylinder 302 by the spiral blades 304 under the drive of the rotating power element 301, enter the inner cavity of the inner cylinder 201 through the discharge cylinder 306, and fall down along the axial direction of the inner cylinder 201; the storage hopper 305 continuously replenishes the ingredients to the conveying cylinder 302.

[0071] In some embodiments, to improve the stability and anti-clogging performance of the sauce spraying process, please refer to [reference needed]. Figures 3 to 6 The inner cylinder 201 contains a scraper and baffle cylinder 208, which is fixedly connected to the discharge cylinder 306. The outer wall of the scraper and baffle cylinder 208 has two outer annular grooves. A third sealing ring 2081 is installed in the upper outer annular groove, and a fourth sealing ring 2082 is installed in the lower outer annular groove. Both the third and fourth sealing rings 2081 and 2082 are slidably sealed to the inner wall of the inner cylinder 201. The coverage area of ​​the scraper and baffle cylinder 208 between the third and fourth sealing rings 2081 and 2082 can cover all the spray holes 2013. The upper end of the scraper and baffle cylinder 208 has a chamfer to prevent the upper surface from jamming the food. The scraper and baffle cylinder 208 is fixedly connected to the discharge cylinder 306 by two symmetrically distributed vertical rods 215.

[0072] When the inner cylinder 201 is at the top dead center, the injection hole 2013 is located between the third sealing ring 2081 and the fourth sealing ring 2082, thereby causing the scraper baffle cylinder 208 to close the injection hole 2013 and prevent the sauce from flowing out of the injection hole 2013 to the outlet 2012.

[0073] When the inner cylinder 201 is at the bottom dead center, the scraper baffle 208 is located above the spray hole 2013, and the spray hole 2013 is located below the fourth sealing ring 2082. The spray hole 2013 is no longer closed. At this time, the spray hole 2013 is in an open state. When the piston 203 is pressed down, the sauce can be sprayed smoothly. When the sauce conveying mechanism 200 rises, the inner cylinder 201 moves upward relative to the scraper baffle 208, and the residual sauce and vegetables near the spray hole 2013 are scraped off by the scraper baffle 208.

[0074] In some embodiments, to improve the coating effect of the sauce on the ingredients, please refer to [reference needed]. Figures 3 to 6The spray holes 2013 are arranged in 12 layers from top to bottom along the axial direction of the inner cylinder 201. The spray holes 2013 in each layer are arranged alternately in the circumferential direction with an alternation angle of 5° to 20°. In this embodiment, the alternation angle is set to 6°, which can form a relatively uniform annular spray surface and have the effect of alternating spraying. This increases the contact time and probability between the food and the sauce, and facilitates the formation of a coating layer of sauce on the inner side of the inner cylinder 201, so as to achieve full adhesion during the falling of the food.

[0075] In some embodiments, to facilitate the first linear actuator 204 driving the piston 203 to move, please refer to [reference needed]. Figure 1 A push rod 209 is fixed to the upper end of the piston 203, and a push plate 210 is fixed to the upper end of the push rod 209. An elastic element 211 is installed at the output end of the first linear actuator 204. The elastic element 211 is a spring damper, or it can be a compression spring, air spring, or other element that can provide cushioning. The elastic element 211 is connected to the push plate 210. The elastic element 211 absorbs the impact and provides the rebound force, so that the piston 203 moves more buffered at the end of the stroke, improving the injection stability and extending the service life of the mechanism.

[0076] When the first linear actuator 204 extends, it pushes the push plate 210 and push rod 209 through the elastic element 211, causing the piston 203 to move downward. The elastic element 211 acts as a buffer through elastic deformation, preventing the piston 203 from moving synchronously with the output end of the first linear actuator 204, which would result in excessively fast movement speed and excessive pressure of the sauce sprayed from the spray hole 2013. When the first linear actuator 204 retracts, it drives the piston 203 to rise through the elastic element 211, completing one spray cycle.

[0077] Please see Figure 1 and Figure 4The piston 203 is fixed with a sauce inlet pipe 212 and a drain pipe 213. The piston 203 has two through holes, which are connected to the sauce inlet pipe 212 and the drain pipe 213 respectively. The sauce inlet pipe 212 and the drain pipe 213 are connected to the storage chamber 207 through the two through holes respectively. The top of the sauce inlet pipe 212 and the drain pipe 213 are detachably and sealed with plugs 214. The sauce inlet pipe 212 and the drain pipe 213 are both fixedly connected to the push plate 210. The sauce inlet pipe 212 is a dedicated replenishment channel for the storage chamber 207. After removing the plug 214 at the top of the sauce inlet pipe 212 and the vent pipe 213, sauce is added to the storage chamber 207 through the sauce inlet pipe 212. The air in the storage chamber 207 is discharged through the vent pipe 213. The plug 214 can be a threaded sealing plug 214, which includes an external threaded part and an end head. The external threaded part is provided with an external thread. The inner wall of the top of the sauce inlet pipe 212 and the vent pipe 213 is provided with an internal thread that matches the external thread of the plug 214. The end head is used to seal the top opening of the sauce inlet pipe 212 and the vent pipe 213.

[0078] After replenishment, the sauce inlet pipe 212 and the drain pipe 213 are sealed by the plug 214 to prevent the sauce from overflowing due to the pressure generated by the piston 203 rising and falling, and to prevent dust and impurities from entering the storage chamber 207, which meets food hygiene standards.

[0079] Three guide sleeves are fixed to the top of the outer cylinder 202. The three guide sleeves are slidably connected to the push rod 209, the sauce inlet pipe 212 and the vent pipe 213 respectively. The sauce inlet pipe 212 and the vent pipe 213 are both fixedly connected to the push plate 210, which can improve the connection strength between the push plate 210 and the piston 203, avoid excessive force on the push rod 209, and make the piston 203 move more smoothly.

[0080] By introducing clean gas at a certain pressure into the sauce inlet pipe 212 and / or the vent pipe 213, the sauce in the storage chamber 207 is forced out through the spray hole 2013, thereby improving the utilization rate of the sauce and avoiding excessive waste caused by too much sauce that cannot be squeezed out by the piston 203.

[0081] When the storage chamber 207 needs to be cleaned, high-pressure clean water or food-grade cleaning agent can be injected into the sauce addition pipe 212 and / or the drain pipe 213. The cleaning wastewater and residual sauce can be quickly discharged through the spray hole 2013.

[0082] In some embodiments, the outer cylinder 202 includes an upper coarse-diameter cylinder portion 2021 and a lower fine-diameter cylinder portion 2022, the inner diameter of the coarse-diameter cylinder portion 2021 being larger than the inner diameter of the fine-diameter cylinder portion 2022; the injection hole 2013 is located inside the fine-diameter cylinder portion 2022 and below the coarse-diameter cylinder portion 2021, and the piston 203 moves within the coarse-diameter cylinder portion 2021. This coarse-and-fine cylinder structure increases the upper material storage space while reducing the cross-sectional size of the injection area, facilitating the formation of a stable injection pressure, and ensuring that the piston 203 does not close the injection hole 2013.

[0083] This embodiment provides a hamburger production line, including the auxiliary material feeding device of any of the above embodiments, and has corresponding beneficial effects.

[0084] Work process

[0085] Cooperate Figures 1 to 4 This embodiment describes the working process of the auxiliary material co-feeding device in a hamburger production line.

[0086] The conveyor belt of the hamburger production line passes sequentially through the bread baking station, the toppings adding station, and the meat adding station. At the toppings adding station, a topping co-feeding device as described in the above embodiment is installed.

[0087] 1. Ready Status:

[0088] The second linear actuator 205 drives the lifting frame 206 to the upper position. At this time, the scraper and baffle cylinder 208 closes the spray hole 2013 to prevent sauce from dripping.

[0089] The storage hopper 305 contains ingredients to be added, such as lettuce strips, shredded lettuce or other vegetables;

[0090] An appropriate amount of sauce is pre-injected into the annular storage chamber 207 through the sauce addition pipe 212.

[0091] 2. Position the hamburger bun:

[0092] The hamburger bun is conveyed by the conveyor line to the predetermined position below the auxiliary material addition station. After the production line control system detects that the hamburger bun has arrived, it starts the auxiliary material addition process.

[0093] 3. Pre-spray the sauce onto the surface of the hamburger bun:

[0094] The second linear actuator 205 drives the lifting frame 206 to descend, bringing the lower end of the inner cylinder 201 close to the upper surface of the hamburger bun. A small gap can be reserved, or it can slightly abut against the upper surface of the hamburger bun, forming a relatively enclosed local space. At this position, the first linear actuator 204 begins a spraying action, pushing the piston 203 downward. The sauce in the annular storage chamber 207 is sprayed into the inner side of the inner cylinder 201 through the spray hole 2013. According to the viscosity of the sauce, the spraying pressure of the spray hole 2013 is adjusted by controlling the descending speed of the piston 203, so that the pressure of the sauce is appropriate. Then, under the influence of gravity, the sauce falls from the outlet 2012 onto the surface of the hamburger bun, forming a relatively uniformly distributed sauce base.

[0095] 4. Adding ingredients and wrapping simultaneously:

[0096] When the rotary power element 301 is activated, the drive shaft 303 and the spiral blade 304 rotate, pushing the food in the storage hopper 305 to the lower end of the conveying cylinder 302, and then through the discharge cylinder 306 into the inner cylinder 201. The food falls freely in the inner cylinder 201 and lands on the hamburger bun.

[0097] During the falling of the ingredients, the first linear actuator 204 performs another spraying action, pushing the piston 203 downwards. This causes the sauce in the storage chamber 207 to be sprayed again through the spray hole 2013 onto the inner side of the inner cylinder 201, making full contact with the falling ingredients. In particular, the "fluid" edge area of ​​the ingredients is coated with the sprayed sauce, forming a high-viscosity edge, which makes the ingredients more stable when they land on the hamburger bun. After the ingredients land on the hamburger bun, the top of the ingredient pile is also sprayed with sauce, further restricting the looseness of the ingredient pile and making the shape of the ingredient pile more stable. Alternatively, the first linear actuator 204 can be configured to perform only one spraying action, but the spraying time is extended, divided into two consecutive time periods. The first time period is when no ingredients are added, allowing a sauce base to form on the hamburger bun, and the ingredients fall in the second time period.

[0098] 5. End and Reset:

[0099] After the spraying is completed, the second linear actuator 205 retracts, driving the sauce spraying mechanism to rise and reset, preparing for the next spraying cycle; during the retraction of the second linear actuator 205, the first linear actuator 204 can drive the piston 203 to rise to a preset displacement, so that a negative pressure is formed in the storage chamber 207, while preventing the sauce from flowing out of the spraying hole 2013 when the sauce spraying mechanism rises.

[0100] The second linear actuator 205 drives the lifting frame 206 to rise to the upper stop position, and the scraper and baffle cylinder 208 re-closes the spray hole 2013 to prevent the sauce from leaking when it is not in operation.

[0101] Once the hamburger buns with the toppings laid out are in place, they are conveyed to the next workstation for meat addition and subsequent processes.

[0102] Throughout the process, the inner cylinder 201 is close to the lower part of the hamburger bun during operation, which limits the range of food drop points. The food is coated with sauce spray before and after it falls, which in particular enhances the adhesion of the food to the outer edge. Therefore, the food is less likely to fall off the hamburger during production line operation and subsequent packaging, effectively improving the appearance and consistency of the product, while reducing pollution in the production environment.

[0103] This invention is not limited to the specific embodiments described above. For example, the specific volume of the storage chamber 207, the number of layers and diameter of the injection holes 2013, the stiffness of the elastic element 211, and the stroke of the second linear actuator 205 can all be appropriately adjusted according to specific production needs; the vegetable conveying mechanism 300 can also adopt a combination of belt conveying and screw conveying, as long as the vegetables can be stably introduced into the inner cylinder 201 and come into contact with the sauce during the falling process, they all fall within the protection scope of this invention.

[0104] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0105] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

Claims

1. An auxiliary material and a main material simultaneous feeding device, characterized in that, The sauce conveying mechanism comprises an inner cylinder, an outer cylinder, a piston, and a first linear actuator, the outer cylinder is fixedly sleeved on the periphery of the inner cylinder, and a storage cavity for storing sauce is formed between the inner cylinder and the outer cylinder; the upper and lower ends of the inner cylinder are respectively provided with a feeding port and a discharging port, the inner cylinder is provided with injection holes in communication with the storage cavity, and the injection holes are uniformly distributed in the circumferential direction; the piston is slidingly and sealingly installed in the storage cavity; the first linear actuator can drive the piston to axially descend along the storage cavity, and when the piston descends, the sauce in the storage cavity can be pressed out of the injection holes to the inside of the inner cylinder and discharged from the discharging port, and when the inner cylinder is added with vegetable materials, the sauce can contact the falling vegetable materials to bond the vegetable materials and limit the loosening of the vegetable materials. A second linear actuator is installed on the frame and used to drive the sauce conveying mechanism to ascend and descend relative to the frame. The sauce conveying mechanism further comprises a rotating power element, a conveying cylinder, a driving shaft, a spiral blade, and a discharging cylinder, the rotating power element and the conveying cylinder are fixedly connected with the frame, the driving shaft is coaxially and rotationally connected with the conveying cylinder, the driving shaft is in transmission connection with the output end of the rotating power element, the spiral blade is located in the conveying cylinder and fixedly connected with the driving shaft in a coaxial mode, the lower end of the conveying cylinder is fixedly provided with the discharging cylinder in communication therewith, the axis of the discharging cylinder is arranged in parallel with the axis of the inner cylinder, the lower end of the discharging cylinder extends into the feeding port, and the upper end of the conveying cylinder is fixedly provided with a storage hopper in communication therewith on the side away from the discharging cylinder. The inner cylinder is provided with a scraping and blocking cylinder, the scraping and blocking cylinder is fixedly connected with the discharging cylinder, and the scraping and blocking cylinder is slidingly and sealingly connected with the inner cylinder; when the inner cylinder is at the upper dead point, the scraping and blocking cylinder closes the injection holes; and when the inner cylinder is at the lower dead point, the scraping and blocking cylinder is located above the injection holes. The injection holes are provided with multiple layers from top to bottom, and the injection holes in each layer are arranged in an interval and staggered in the circumferential direction. The sauce conveying mechanism further comprises a lifting frame, the mounting end of the first linear actuator, the output end of the second linear actuator, and the outer cylinder are fixedly connected with the lifting frame.

2. The auxiliary material synergic feeding device according to claim 1, characterized in that, The upper end of the piston is fixedly provided with a push rod, the upper end of the push rod is fixedly provided with a push plate, the output end of the first linear actuator is provided with an elastic element, and the elastic element is connected with the push plate.

3. The auxiliary material synergic feeding device according to claim 1, characterized in that, The piston is fixedly provided with a sauce adding pipe and a emptying pipe, the sauce adding pipe and the emptying pipe are in communication with the storage cavity, the top of the sauce adding pipe and the emptying pipe is detachably and sealingly provided with a plug, and the sauce adding pipe and the emptying pipe are fixedly connected with the push plate.

4. The adjunct co-loading device of claim 1, wherein, The inner cylinder and the outer cylinder are coaxially and fixedly connected, and the storage cavity is a ring cavity.

5. The auxiliary material synergic feeding device according to claim 4, characterized in that, ​ 6. The adjunct co-loading device of claim 1, wherein, ​

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