Bagged food packaging machine

Abstract

This invention discloses a bagged food packaging machine, including at least two packaging units arranged side by side on a frame. The feeding device, dispensing device, and packaging device of the packaging unit are respectively installed on a first frame, a second frame, and a third frame that are detachably connected to the frame. The feeding device carries small bags of food accumulated in the material bin away from the material bin and places them onto the dispensing device through an inclined belt conveyor mechanism. The first, second, third, and fourth conveyor belts of the dispensing device convey each small bag of food that falls into the dispensing device one by one. The bagging mechanism of the packaging device moves back and forth between the dispensing mechanism, the bag feeding mechanism, and the heat sealing mechanism arranged on its upper side, moving the packaging bag provided by the bag feeding mechanism to the bottom of the dispensing mechanism, so that the small bags of food at the dispensing mechanism can fall into the packaging bag. The heat sealing mechanism heat seals the bag opening of the packaging bag moved by the bagging mechanism to seal it.

Description

Technical Field

[0001] This invention relates to the field of food packaging, and more particularly to a bagged food packaging machine that separates small bags of food that are stacked together one by one and packages them in a certain quantity into a packaging bag. Background Technology

[0002] In the food packaging industry, considering factors such as ease of storage, transportation, sales, and cost, an increasing number of foods are packaged in bags. Especially with rising hygiene standards, individual food items within the bags need to be individually sealed before being placed into the larger packaging. This makes it more convenient and hygienic to open and consume the food. Therefore, this involves separating the individually sealed bags of food from the pile, and then repackaging these separated bags into larger bags according to a specific quantity. However, when the food itself is irregular in shape and size, and has a certain degree of hardness and is relatively light, separating these piled-up bags is not easy. Traditionally, this involves manually separating each bag and then packing it into the required quantity into the appropriate bags. Repackaging using traditional weighing methods is difficult, so it is often done by quantity. Manual sorting and repackaging are time-consuming, inefficient, and costly. Especially for some small food enterprises and individual users, many of them are not involved in food processing or food packaging. Instead, they separate the large quantities of small-bag food they purchase and then package them into large bags according to the required quantity. This requires both improving the efficiency of material distribution and packaging, and taking into account production costs.

[0003] For example, when packaging areca nuts, one, two, or four slices are often vacuum-sealed into small bags, and then two, three, or six vacuum-sealed bags of areca nuts are sealed into bags of the corresponding size. Although some companies use packaging machines to separate and package irregularly shaped foods like areca nuts, most existing packaging machines consist of a traditional rotary packaging machine body plus a feeding system. The separating mechanism mostly uses a vibrating disc for separating the material. These packaging machines often have a large footprint, complex structure, high noise, and high cost. Furthermore, because the shapes and sizes of the individually packaged small bags of areca nuts are not consistent, their weight is relatively light, and their surfaces are not flat, the internal separating structure of the vibrating disc used for separating them is quite complex. It requires multiple adjustments to achieve the desired separating effect and is prone to clogging. Subsequent adjustments and maintenance are inconvenient, the manufacturing cost is relatively high, and they often cannot effectively adapt to the packaging of small bags of food of different sizes, making them inflexible in use. In particular, existing packaging machines cannot meet the needs of large food companies, some small food companies, and individual users.

[0004] Therefore, there is an urgent need for a bagged food packaging machine that is simple in structure, highly efficient in packaging, adaptable, and effectively reduces production costs to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a bagged food packaging machine that is simple in structure, highly efficient in packaging, highly adaptable, and effectively reduces production costs.

[0006] To achieve the above objectives, the present invention discloses a bagged food packaging machine for dispensing stacked small bags of food into packaging bags in a certain quantity. The bagged food packaging machine includes a frame and at least two packaging units arranged side-by-side along the width of the frame. The frame includes a first frame, a second frame, and a third frame detachably connected along its length. Each packaging unit includes a feeding device, a dispensing device, and a dispensing device correspondingly installed on the first frame, the second frame, and the third frame. The feeding device uses an inclined belt conveyor to carry the stacked small bags of food from the material bin in batches, and lowers them from a height onto the dispensing device. The dispensing device uses a first conveyor belt and a second conveyor belt connected sequentially. The third and fourth conveyor belts transport each batch of small bags of food to the feeding mechanism of the packaging device. The bagging mechanism of the packaging device moves back and forth between the feeding mechanism, the bag supply mechanism, and the heat sealing mechanism arranged sequentially on its upper side to obtain the packaging bags provided by the bag supply mechanism and move the packaging bags to the bottom of the feeding mechanism. During the bag retrieval process, the bag opening is opened with the cooperation of the bag supply mechanism, so that the small bags of food at the feeding mechanism can fall into the packaging bag. The number of small bags of food falling each time corresponds to the number of bags to be packaged in the packaging bag. The bagging mechanism also moves the packaged bags after filling to the heat sealing mechanism, where the heat sealing mechanism heat seals the opening of the packaging bag to seal it.

[0007] Preferably, the first frame has an inclined mounting surface for mounting the belt conveyor mechanism, the second frame has a first horizontal mounting surface for mounting the material distribution device, and the third frame has a second horizontal mounting surface for mounting the packaging device, wherein the height of the first horizontal mounting surface is higher than the height of the second horizontal mounting surface.

[0008] Preferably, the material bin is an open bin with a relatively small lower end and a relatively large upper end. The lower end of the conveyor belt of the belt conveyor mechanism passes through the material bin to form an input end, while the upper end passes obliquely upward through the material bin and is suspended on the top side of the first conveyor belt to form an output end. The conveyor belt is evenly distributed with material guide plates, and each adjacent material guide plate can accommodate at least one small bag of food.

[0009] Preferably, the first conveyor belt and the fourth conveyor belt are both arranged horizontally, and the conveying surface of the first conveyor belt is higher than that of the fourth conveyor belt. The second conveyor belt and the third conveyor belt are both arranged at an inclination, and the inclination angle of the conveying surface of the second conveyor belt is greater than that of the conveying surface of the third conveyor belt.

[0010] Preferably, the material distribution device further includes a receiving assembly having a receiving plate and a bending plate, or having a receiving plate, a bending plate and an adjusting plate. The receiving plate is arranged obliquely between the first conveyor belt and the conveyor belt of the belt conveyor mechanism, and is wider at the top and narrower at the bottom. The two bending plates are symmetrically arranged on opposite sides of the first conveyor belt and the receiving plate, and the distance between them gradually decreases from the receiving plate toward the first conveyor belt to form a constricted guide structure. The adjusting plate is arranged obliquely and is positionally adjustable between one of the two bending plates and the receiving plate, and a limiting channel is formed between the adjusting plate, the receiving plate and the other bending plate.

[0011] Preferably, the feeding device further includes two first side plates and two second side plates. The two first side plates are symmetrically arranged on opposite sides of the conveyor belt of the belt conveyor mechanism and are located between the open end of the material bin and the output end of the conveyor belt, thereby forming a constricted guide structure. The upper opposite ends of the two second side plates are connected to the two first side plates one-to-one, and the lower opposite ends of the two second side plates are symmetrically suspended at the top end of the first conveyor belt, and have corresponding inward buckles formed by bending towards each other.

[0012] Preferably, the bag feeding mechanism uses a bag-picking suction cup to sequentially pick up the packaging bags stacked in its bag feeding chamber from below until they are detached from the bag feeding chamber, and then flips them forward to a position opposite to the bag filling mechanism. The material dispensing mechanism uses two material cylinders to alternately receive small bags of food corresponding to the required quantity to be packaged in the packaging bag, and alternately transfers the received small bags of food to the top of the bag filling mechanism for dispensing. The bag filling mechanism uses two clamping components to clamp the packaging bag, and uses an adsorption component arranged between the two clamping components to open the bag opening.

[0013] Preferably, the two clamping components are arranged symmetrically around the adsorption component, and are used to clamp the packaging bag from the left and right opposite sides, so that the adsorption component can adsorb and pull the opposite front sidewall of the clamped packaging bag from the opposite front side, thereby opening the bag opening under the cooperation of the adsorption force of the bag supply mechanism on the rear sidewall of the packaging bag.

[0014] Preferably, the two material cylinders are symmetrically and rotatably arranged below the output end of the fourth conveyor belt. The feeding mechanism also includes an opening and closing assembly arranged at the opposite bottom end of the third frame for opening and closing relative to the opposite material cylinder to allow or prevent the small bag of food in the material cylinder from falling.

[0015] Preferably, the heat-sealing mechanism includes two sealing claws symmetrically arranged in the front-to-back direction, and two pressing plates and two hot pressing plates symmetrically arranged in the left-to-right direction. The two pressing plates are located on the opposite lower side of the hot pressing plate on the corresponding side. The two sealing claws cooperate to clamp or release the packaging bag from the left and right opposite sides. The two pressing plates cooperate to press the bag opening from the front and back opposite sides of the packaging bag to shrink the bag opening. The two hot pressing plates cooperate to heat seal the bag opening from the front and back opposite sides of the packaging bag.

[0016] Compared with the prior art, the bagged food packaging machine of the present invention has a simple overall structure, small size, and reasonable and compact layout. On the one hand, by arranging at least two packaging units on the frame, the overall size of the machine is effectively reduced, and the specific number of packaging units can be set according to actual needs. This not only enables efficient material distribution and packaging of large quantities of bagged food, effectively improving packaging efficiency, but also allows each packaging unit to operate independently, making it easy to use and maintain. One, two, or more packaging units can be activated according to production needs, making it flexible, mobile, economical, and practical. Furthermore, by mounting the feeding device, dispensing device, and packaging device of the packaging unit onto the detachably connected first, second, and third frames, assembly can be performed according to actual needs. This allows for semi-automatic packaging to meet the needs of small food enterprises and individual users. For example, semi-automatic packaging can be achieved by combining automatic dispensing with manual packaging via the front-end feeding and dispensing devices, or by combining manual dispensing with automatic packaging via the rear-end packaging device. Alternatively, the entire machine can achieve automated dispensing and packaging operations, thus catering to the needs of large food enterprises. This makes the machine more flexible and has a wider audience. On the other hand, the feeding device of the packaging unit uses an inclined belt conveyor to carry small bags of food from its material bin in batches, and drop them from a height onto the dispensing device. The height difference causes the small bags of food to fall separately onto the dispensing device, and through the sequentially connected first, second, third, and fourth conveyor belts, the distance between the initially dispersed small bags of food is continuously increased until each small bag of food is conveyed one by one from the fourth conveyor belt and falls into the dispensing mechanism of the packaging unit. This achieves efficient and convenient dispensing, combined with the bagging mechanism of the packaging unit, which is arranged sequentially on the belt conveyor. The upper side of the feeding mechanism, bag supply mechanism, and heat sealing mechanism can be moved with only a small movement to move the packaging bag provided by the bag supply mechanism to the bottom of the feeding mechanism. With the cooperation of the bag supply mechanism, the opening of the packaging bag is opened, allowing the small bags of food at the feeding mechanism to fall into the packaging bag. Then, the heat sealing mechanism heat seals the packaging bag transferred by the bag filling mechanism, thus efficiently completing the entire packaging operation. In particular, the number of small bags of food falling each time by the feeding mechanism corresponds to the number of small bags to be packaged in the packaging bag, thus simply and effectively ensuring the consistency of the number of small bags of food packaged in each packaging bag, effectively improving the accuracy of packaging. Attached Figure Description

[0017] Figure 1 This is a perspective view of the bagged food packaging machine of the present invention.

[0018] Figure 2 This is a top view of the bagged food packaging machine of the present invention.

[0019] Figure 3This is a side view of the bagged food packaging machine of the present invention.

[0020] Figure 4 This is a perspective view of the packaging unit of the present invention from one angle.

[0021] Figure 5 This is a perspective view of the packaging unit of the present invention from another angle.

[0022] Figure 6 This is a top view of the feeding device of the present invention.

[0023] Figure 7 yes Figure 2 Enlarged view of section C.

[0024] Figure 8 This is a perspective view of the material dispensing device of the present invention with some components hidden.

[0025] Figure 9 This is a perspective view of the dispensing device of the present invention from one angle.

[0026] Figure 10 This is a perspective view of the dispensing device of the present invention from another angle.

[0027] Figure 11 This is a bottom view of the dispensing device of the present invention.

[0028] Figure 12 This is a perspective view of the bag feeding mechanism of the present invention.

[0029] Figure 13 yes Figure 12 Enlarged view of section D.

[0030] Figure 14 This is a perspective view of the bag supply mechanism of the present invention.

[0031] Figure 15 This is a perspective view of the heat sealing mechanism of the present invention. Detailed Implementation

[0032] To illustrate the technical content and structural features of the present invention in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0033] See Figures 1 to 4This invention provides a bagged food packaging 100 for distributing stacked small bags of food into packaging bags 200 in a certain quantity. This requires first separating the stacked small bags of food individually for portioning, and then packaging the separated small bags of food into relatively large packaging bags in a certain quantity. The stacked small bags of food can be purchased externally or transported centrally from another independent packaging device. Each small bag can contain 1, 2, 3, or 4 pieces of food, the specific quantity depending on the shape, texture, and size of the food. The small bags of food can be vacuum-packed, and each relatively large packaging bag can contain at least two relatively small bags of food. In this application, the food specifically includes, but is not limited to, areca nuts. Each vacuum-packed small bag contains 3, 4, or 6 areca nuts, and the small bags of areca nuts are then packaged into bags of corresponding sizes in groups of 6, 8, or 12 bags.

[0034] See Figures 1 to 15Overall, the bagged food packaging machine 100 provided in the preferred embodiment of the present invention includes a frame A00 and at least two packaging units B00 arranged side by side along the width of the frame A00. The frame A00 includes a first frame A01, a second frame A02 and a third frame A03 detachably connected along its longitudinal direction. Each packaging unit B00 includes a feeding device 10 installed on the first frame A01, a dispensing device 20 installed on the second frame A02 and a dispensing device 30 installed on the third frame A03. The system includes an inclined belt conveyor 11 and a material bin 12. Specifically, the belt conveyor 11 carries small bags of food accumulated in the material bin 12 out of the bin in batches and drops them from a height onto a dispensing device 20. The dispensing device 20 includes a first conveyor belt 21, a second conveyor belt 22, a third conveyor belt 23, and a fourth conveyor belt 24 connected in sequence. Specifically, the first conveyor belt 21, the second conveyor belt 22, the third conveyor belt 23, and the fourth conveyor belt 24 transport each batch of small bags of food to the dispensing mechanism 32 of the packaging device 30. The packaging device 30 also includes a bagging mechanism 31, a bag feeding mechanism 33, and a heat sealing mechanism 34. The dispensing mechanism 32, the bag feeding mechanism 33, and the heat sealing mechanism 34 are... The bagging mechanism 31 is arranged sequentially on its upper side. It moves between the feeding mechanism 32, the bag supply mechanism 33, and the heat-sealing mechanism 34 to obtain the packaging bag 200 provided by the bag supply mechanism 33 and move it below the feeding mechanism 32. During the bag-retrieving process, it also opens the bag opening of the packaging bag 200 with the cooperation of the bag supply mechanism 33, allowing small bags of food from the feeding mechanism 32 to fall into the packaging bag 200. The number of small bags of food falling each time corresponds to the number of bags to be packaged in the packaging bag 200. The bagging mechanism 31 then moves the filled packaging bag 200 to the heat-sealing mechanism 34, where the heat-sealing mechanism 34 heat-seals the opening of the packaging bag 200, thus completing the entire packaging operation. For ease of understanding, the front-back, left-right, and up-down directions involved in this invention correspond to the longitudinal length, transverse width, and vertical height directions of the frame A00, respectively, but are not limited thereto.

[0035] See Figures 1 to 3 Specifically, the first frame A01 has an inclined mounting surface A011 for the belt conveyor 11, the second frame A02 has a first horizontal mounting surface A021 for the dispensing device 20, so that the dispensing device 20 can receive the small bags of food falling from the elevated belt conveyor 11, and the third frame A03 has a second horizontal mounting surface A031 for the packaging device 30, and the height of the first horizontal mounting surface A021 is higher than the height of the second horizontal mounting surface A031, so that the packaging device 30 can receive the small bags of food hanging from the fourth conveyor belt 24 from the lower side.

[0036] See Figures 3 to 6Specifically, the belt conveyor 11 is mounted on the inclined mounting surface A011 of the first frame A01 via an inclined support frame 13. The material bin 12 is mounted at the lower end of the belt conveyor 11, and is an open bin with a relatively small lower end and a relatively large upper end. The lower end of the conveyor belt 111 of the belt conveyor 11 passes through the material bin 12 to form the input end, while its upper end passes obliquely upward through the material bin 12 and is suspended on the top side of the first conveyor belt 21 to form the output end. Correspondingly, the material bin 12 has a through groove 12a for the conveyor belt 111 to pass through, and the through groove 12a is arranged on the bottom plate and side plate of the material bin 12. The conveyor belt 111 is mounted on the drive shaft 15 and driven shaft 16, which are rotatably mounted on the two opposite ends of the support frame 13. Driven by the motor 14 connected to the drive shaft 15, the small bags of food in the material bin 12 are continuously transported to the dispensing device 20 as the drive shaft 15 and driven shaft 16 rotate.

[0037] Specifically, in some embodiments, the conveyor belt 111 of the belt conveyor mechanism 11 is evenly distributed with material guide plates 1111, and each adjacent material guide plate 1111 can accommodate at least one small bag of food. The specific height, width, and spacing between each material guide plate 1111 can be determined according to the size of the small bag of food, thereby effectively controlling the number of small bags of food conveyed in batches and achieving smooth conveying operations. Among them, the number of small bags of food conveyed in batches is generally one bag. Occasionally, two bags stacked together may be conveyed in the same batch. When they fall onto the distribution device 20 with a certain height difference, the two small bags of food stacked together in the same batch are basically dispersed during the falling collision process, and there are very few cases where they are not completely dispersed, thus facilitating their one-by-one conveying on the distribution device 20.

[0038] Combination Figures 3 to 7 Specifically, in some embodiments, the feeding device 10 further includes two first side plates 17 and two second side plates 18. The two first side plates 17 are symmetrically arranged on the left and right opposite sides of the conveyor belt 111 and are located between the open end of the material bin 12 and the output end of the conveyor belt 111, thereby forming a constricted guide structure, which guides and limits the conveying direction of the small bags of food. While preventing the small bags of food from falling during the conveying process, it also allows each batch of small bags of food to be conveyed in a row on the conveyor belt 111, which is convenient for subsequent material distribution and packaging operations. The upper ends of the two second side plates 18 are connected to the two first side plates 17 in a one-to-one correspondence. The lower ends of the two are symmetrically suspended at the top end of the first conveyor belt 21, and have corresponding inward buckling portions 181 formed by bending in the direction of the other. That is, the second side plates 18 are roughly L-shaped with obtuse angles. This not only blocks and limits the falling direction of the small bags of food that have detached from the conveyor belt 111, but also helps to break up a few stacked small bags of food during the falling process.

[0039] See Figures 3 to 8 Specifically, the first conveyor belt 21, the second conveyor belt 22, the third conveyor belt 23, and the fourth conveyor belt 24 are all annular belts, rotatably mounted between the two side plates 251 of the mounting base 25, and connected one-to-one with the first conveyor motor 211, the second conveyor motor 221, the third conveyor motor 231, and the fourth conveyor motor 241, thus rotating under the drive of their respective conveyor motors. The first conveyor belt 21 and the fourth conveyor belt 24 are both horizontally arranged, with the conveying surface of the first conveyor belt 21 being higher than that of the fourth conveyor belt 24, facilitating the loading and unloading of small bags of food. The second conveyor belt 22 and the third conveyor belt 23 are both inclined, with the inclination angle of the conveying surface of the second conveyor belt 22 being much greater than that of the third conveyor belt 23, thereby lifting and dropping the conveyed small bags of food with a certain height difference, further increasing the spacing between the small bags and effectively improving the material distribution effect. Especially for the very few small bags of food that have not yet been completely separated on the first conveyor belt 21, complete separation is achieved through a larger lifting and dropping motion on the second conveyor belt 22, and a smaller lifting and dropping motion on the third conveyor belt 23 effectively widens the distance between the small bags of food, thereby improving the material distribution effect. Furthermore, a filler plate 212 is arranged at the gap between the joint ends of the first conveyor belt 21 and the second conveyor belt 22 to prevent small bags of food from slipping through the gap or getting stuck in the gap, which would prevent effective conveying.

[0040] Specifically, in some embodiments, the operating speeds of conveyor belts 111, 21, 22, 23, and 24 can be different. This allows for a more effective increase in the spacing between the small bags of food, achieving smooth and efficient material separation. Specifically, the operating speeds of the first, second, third, and fourth conveyor belts 24 can increase sequentially, thereby enhancing the separation effect. Furthermore, in terms of conveying length, the second conveyor belt 22 has a longer conveying length than the first conveyor belt 21 but shorter than the third conveyor belt 23, while the fourth conveyor belt 24 has a conveying length greater than or equal to that of the third conveyor belt 23. This not only ensures thorough material separation but also provides a smoother and more uniform transport of the small bags of food. Since the inclination angle of conveyor belt 111 is greater than that of the second conveyor belt 22, its conveying length is relatively longer, resulting in a greater lifting range and a more pronounced initial drop-and-separate material separation effect.

[0041] See Figures 5 to 7Specifically, in some embodiments, the material distribution device 20 further includes a receiving assembly 26 having a receiving plate 261 and a bending plate 263, or having a receiving plate 261, a bending plate 262, and an adjusting plate 263. The receiving plate 261 is inclinedly arranged between the first conveyor belt 21 and the conveyor belt 111, and is wider at the top and narrower at the bottom. The two bending plates 262 are symmetrically arranged on the left and right opposite sides of the first conveyor belt 21 and the receiving plate 261, and the distance between the two bending plates 262 extends from the receiving plate 261 toward the first conveyor belt 21. As the direction gradually narrows to form a tapered guide structure, when batches of small bags of food are output from the output end of the conveyor belt 111, they first fall onto the receiving plate 261. Through the sliding buffer on the receiving plate 261, they smoothly slide into the first conveyor belt 21. During this sliding process, the two bending plates 262 not only prevent the small bags of food from falling from the left and right sides, but also guide and limit the sliding direction of the small bags of food, so that each small bag of food is arranged in a row on the first conveyor belt 21 for conveying, thereby facilitating subsequent multi-stage conveying. The adjusting plate 263 is inclined and its position is adjustable between one of the two bending plates 262 and the receiving plate 261, thereby forming a limiting channel between the adjusting plate 263, the receiving plate 261 and the other bending plate 262. This allows the small bags of food falling from the conveyor belt 111 to first fall onto the adjusting plate 263, and bounce back into the limiting channel through the collision with the adjusting plate 263. During this collision process, the small bags of food that have not been completely separated in the same batch are effectively broken up, so that each small bag of food slides into the limiting channel one by one, and slides into the first conveyor belt 21 under the guidance of the limiting channel, thereby further realizing the breaking up and separation of each small bag of food.

[0042] It should be noted that in some embodiments, when the dispensing device 20 with receiving component 26 is arranged at the rear end of the feeding device 10 with two first side plates 17 and two second side plates 18, the upper end of the receiving plate 261 is located at the lower end of the conveyor belt 111 on the opposite front side of the two second side plates 18, so as to receive the material more reliably. The two bending plates 262 are arranged one-to-one on the outer side of the two second side plates 18, so that the small bags of food falling from the output end of the conveyor belt 111 are first guided and initially broken apart by the two second side plates 18, and then rebounded into the limiting channel by the second collision of the adjusting plate 263, thereby further breaking apart the small bags of food that have not been completely separated in the same batch, and accurately sliding into the first conveyor belt 21 under the guidance of the limiting channel, resulting in a better dispensing effect.

[0043] See Figure 8Specifically, in some embodiments, the dispensing device 20 further includes a blocking block 27 with a certain arc. The blocking block 27 is detachably arranged between the two side plates 251 and located on the opposite top side of the output end of the second conveyor belt 22. It is used to block small bags of food that exceed the distance between the blocking block 27 and the second conveyor belt 22 from the top. This prevents the uppermost small bags of food from the first conveyor belt 21 from being separated from the lower bags, allowing only the lower bags to fall onto the third conveyor belt 23. The blocked upper bags fall back onto the second conveyor belt 22 for continued conveying. In addition, at least one side of the left and right sides of the fourth conveyor belt 24 is provided with a limiting member 28. The limiting member 28 is specifically protruding from the inner wall of at least one side plate 251 and is used to guide and correct the conveying direction of the small bags of food, so that they are accurately aligned and conveyed out. Preferably, a limiting member 28 is provided on each of the two opposite sides of the fourth conveyor belt 24, and the shapes of the two limiting members 28 may be different. Specifically, they may both be triangular or arc-shaped, or one of them may be triangular and the other arc-shaped.

[0044] Specifically, in some embodiments, at least one sensor 29 is arranged above each of the first conveyor belt 21, the second conveyor belt 22, the third conveyor belt 23, and the fourth conveyor belt 24 to sense whether small bags of food are being conveyed on each conveyor belt and whether each small bag of food has been conveyed to the correct position. For more accurate identification, the fourth conveyor belt 24 includes two annular belts 242 with a relatively small gap. In this case, the sensor 29 located on the fourth conveyor belt 24 is a through-beam sensor, which senses the small bags of food conveyed on the fourth conveyor belt 24 from both the upper and lower sides of the gap. Alternatively, a counter can be arranged on the fourth conveyor belt 24 to count the number of separated small bags of food, facilitating the replenishment of small bags of food to be distributed into the material bin 12 and facilitating subsequent control of the number of small bags of food contained in the packaging bag 200. In addition, a guide bend 243 can be arranged at the output end of the fourth conveyor belt 24. The receiving port of the guide bend 243 is connected to the output end of the fourth conveyor belt 24 and is located on a vertical end face perpendicular to the conveying surface of the fourth conveyor belt 24. The discharge port of the guide bend 243 is suspended below the output end of the fourth conveyor belt 24 and is located on a horizontal end face parallel to the conveying surface of the fourth conveyor belt 24. This allows each small bag of food to fall one by one under the guidance of the guide bend 243, making it convenient for the packaging bag 200 to receive the material below.

[0045] Combination Figures 3 to 5 as well as Figures 9 to 15The dispensing device 30 is mounted on the third frame A03 via a base plate 35. The base plate 35 is provided with a first through hole 351, a second through hole 352 and a third through hole 353 arranged in a one-to-one correspondence with the feeding mechanism 32, the bag feeding mechanism 33 and the heat sealing mechanism 34. The bag supply mechanism 33 includes a bag supply chamber 331 and a bag-retrieving suction cup 332. The bag-retrieving suction cup 332 is movably and rotatably arranged at the bottom end of the bag supply chamber 331. The bag supply mechanism 33 uses the bag-retrieving suction cup 332 to sequentially pick up the packaging bags 200 stacked in the bag supply chamber 331 from below until they are detached from the bag supply chamber 331 and flipped forward to a position opposite to the bag filling mechanism 31. The material dispensing mechanism 32 uses two material cylinders 321 to alternately receive small bags of food corresponding to the required number of packaging bags 200, and alternately transfers the received small bags of food to the top of the bag filling mechanism 31 for dispensing. The bag filling mechanism 31 uses two clamping components 311 to clamp the packaging bags 200 and uses an adsorption component 312 arranged between the two clamping components 311 to open the bag opening of the packaging bags 200.

[0046] See Figure 9 and Figure 10 Specifically, two material cylinders 321 are symmetrically and rotatably arranged below the output end of the fourth conveyor belt 24. The feeding mechanism 32 also includes a support frame 322 mounted on the base plate 35 and a rotary driver 323 mounted on the support frame 322. The two material cylinders 321 are symmetrically connected to the output end of the rotary driver 323, so that they rotate synchronously under the drive of the rotary driver 323 to achieve alternating material receiving and feeding. Among them, both material cylinders 321 are straight cylinders that run vertically through each other. The rotary driver 323 drives the two material cylinders 321 to rotate 180° each time, so that they can feed material only when they are rotated to a position opposite to the first through hole 351. Specifically, in some embodiments, the material cylinder 321 has a split structure, specifically including two interlocking annular portions 3211, with at least one of the two annular portions 3211 being adjustablely fitted into the other annular portion 3211, so that the size of the bearing area enclosed by the two is adjustable, thereby adapting to the bearing of small bags of food of different sizes and quantities. More specifically, the support frame 322 is also provided with two adjusting cylinders 325 on the lower side of the rotary drive 323. The two adjusting cylinders 325 are connected to the two material cylinders 321 one-to-one, wherein each adjusting cylinder 325 is connected to the two annular portions 3211 of the corresponding material cylinder 321, for driving the two annular portions 3211 to move towards each other or away from each other, so as to adjust the fitting position of the two, thereby changing the size of the bearing area enclosed by the two.

[0047] See Figure 10 and Figure 11Furthermore, in some embodiments, to achieve better control over the dropping of the small bag of food, the dispensing mechanism 32 further includes an opening and closing component 326 disposed at the bottom of the substrate 35 and located at the first through hole 351 of the substrate 35. The opening and closing component 326 opens or closes the first through hole 351 by performing an opening and closing action relative to the first through hole 311, so that the small bag of food in the opposite material cylinder 321 can pass through the first through hole 351 and drop into the packaging bag 200. Specifically, the opening and closing component 326 includes two opening and closing parts 3261 and two opening and closing cylinders 3262 connected to the two opening and closing parts 3261 in a one-to-one correspondence. The two opening and closing parts 3261 are symmetrically slidably disposed on the front and rear opposite sides of the bottom of the substrate 35 with the center of the first through hole 351 as the center, so that they move towards each other or away from each other in the front and rear direction under the drive of the opening and closing cylinders 3262 to close or open the first through hole 351, thereby preventing or allowing the dispensing of food. Specifically, the upper ends 3263 of the two opening / closing members 3261 slidably abut against the base plate 35, and the two can be joined to form a support platform to support or release the small bag of food in the material cylinder 321 at the first through hole 351 from the bottom. The lower ends 3264 of the two opening / closing members 3261 are both arc-shaped, and the two lower ends 3264 are symmetrically arranged at the center of the bottom edge of the opposite ends of the two upper ends 3263, so as to facilitate insertion into the bag opening of the packaging bag 200 to open the bag opening from the inside to the outside for fixation. The upper end of the lower end 3264 is relatively wide and the lower end is relatively narrow, which makes it easier to insert into the bag opening. In addition, the lower end 3264 can be formed by extending downward and outward from the center of the bottom edge of the upper end 3263, which simplifies the structure and effectively reduces manufacturing costs. When the two opening and closing parts 3261 move in opposite directions to release the material, the two lower ends 3264 that are far apart from each other open and fix the bag opening from the inside to the outside, and the two upper ends 3623 that are far apart from each other release the load on the small bag of food in the material cylinder 321 to release the material. The small bag of food can fall smoothly into the packaging bag 200, effectively improving the bagging efficiency.

[0048] Furthermore, in some embodiments, in order to improve the stability of the movement of the two opening and closing components 3261, the opening and closing assembly 326 further includes two arc-shaped positioning components 3265. The two positioning components 3265 are symmetrically arranged at the bottom of the substrate 35 on the left and right opposite edges of the first through hole 351. The two opening and closing components 3261 are symmetrically inserted between the two positioning components 3265 and the substrate 35 in the front-back direction, so that under the guidance and limiting effect of the two positioning components 3265, the movement is stable and accurately positioned, thereby improving the feeding accuracy and efficiency.

[0049] See Figure 9 and Figure 10In some embodiments, the feeding mechanism 32 further includes a pushing component 327 mounted on the support frame 322 and located above the first through hole 351. The pushing component 327 is used to blow air into the rotating opposite material cylinder 321 and / or push the small bag of food in the material cylinder 321 to accelerate the falling speed of the small bag of food. Specifically, the pushing component 327 includes a mounting frame 3271 mounted on the support frame 322, a lifting motor 3272 mounted on the mounting frame 3271, a pushing tube 3273 connected to the output end of the lifting motor 3272, and a miniature air pump 3274 housed in the pushing tube 3273. The miniature air pump 3274 is used to blow air into the material cylinder 321 to accelerate the feeding of the small bag of food, improve the bagging efficiency, and can move vertically up and down under the drive of the lifting motor 3272 to adjust the distance with the material cylinder 321 and obtain a better blowing effect. The push tube 3273 can also be used to push the small bags of food in the feed cylinder 321, which can also speed up the feeding process. Especially when occasional blockages occur, the push tube 3273 can quickly clear the blockage and facilitate the feeding. As for the micro air pump 3274, the existing micro air pumps are known in the art in terms of structure and control principle. As long as they can be housed in the push tube 3273 to perform the blowing function, they will not be described in detail here.

[0050] In addition, in some embodiments, the center of the opposite ends of the upper parts 3263 of the two opening and closing parts 3261 is recessed in the direction away from each other, thereby forming an air supply channel between the two opening and closing parts 3261. When the bagging mechanism 31 moves the packaging bag 200 with the bag opening already partially opened to the area below the first through hole 351, the micro air pump 3274 can first blow air into the bag opening to open the packaging bag 200 more fully. Then, the two opening and closing parts 3261 move in opposite directions to support the bag opening and release the material, further improving the smoothness of the small bag of food falling and thus improving the bagging efficiency.

[0051] See Figure 9 , Figure 12 and Figure 13The bagging mechanism 31 also includes a linear module 313 arranged along the longitudinal direction of the third frame A03. The linear module 313 is specifically any one of synchronous belt type, ball screw type and linear motor type, used to drive the two clamping components 311 and the adsorption component 312 to make linear reciprocating motion in the front-back direction, thereby moving back and forth between the bag feeding mechanism 33, the material discharging mechanism 32 and the heat sealing mechanism 34. The two clamping components 311 are arranged symmetrically with the adsorption component 312 as the center, used to clamp the packaging bag 200 from the left and right opposite sides, so that the adsorption component 312 can adsorb and pull the opposite front side wall of the clamped packaging bag 200 from the opposite front side, thereby opening the bag mouth of the packaging bag 200 under the cooperation of the adsorption force of the bag feeding mechanism 33 on the rear side wall of the packaging bag 200. The clamping assembly 311 includes a clamping frame 3111, a fixed block 3112, a clamping cylinder 3113, a movable block 3114, and a connecting block 3115 arranged at an inclination. The fixed block 3112 and the clamping cylinder 3113 are respectively installed on the left and right opposite sides of the clamping frame 3111. The first end of the movable block 3114 is pivotally connected to the output end of the clamping cylinder 3113, and the tail end of the movable block 3114 is detachably abutted against the fixed block 3112. The first end of the connecting block 3115 is pivotally connected to the clamping frame 3111 and located between the fixed block 3112 and the clamping cylinder 3113. The tail end of the connecting block 3115 is pivotally connected to the movable block 3114 and located near the first end of the movable block 3114. The connecting block 3115 is pivotally connected to the clamping frame 3111, the movable block 3114 is pivotally connected to the clamping cylinder 3113, and the connecting block 3115 is pivotally connected to the movable block 3114 via pivot shafts 3116, 3117, and 3118, respectively.

[0052] When the movable block 3114 rotates around the pivot shaft 3117 under the drive of the clamping cylinder 3113 to abut or separate from the fixed block 3112, the three pivot shafts 3116, 3117, and 3118 are always located at the three vertices of a triangle, thus forming a stable structure. The connecting block 3115 provides good guidance, support, and limiting, allowing the movable block 3114 to rotate flexibly and accurately to abut against the fixed block 3112. This allows the two to clamp or release the packaging bag 200 from the front and rear sides located between them. The two clamping components 311 clamp and fix the packaging bag 200 from the left and right ends of the packaging bag 200, respectively. Specifically, in some embodiments, the fixed block 3112 is in the shape of an "I" and the movable block 3114 is in the shape of an "L". In this case, the movable block 3114 can achieve abutment and separation from the fixed block 3112 by rotating slightly, resulting in a more compact structure. Furthermore, the contact surfaces of the fixed block 3112 and the movable block 3114 are provided with toothed structures to increase friction and make the clamping more secure.

[0053] See Figure 12 Specifically, in some embodiments, the distance between the two clamping components 311 is adjustable to accommodate clamping different packaging bags 200. More specifically, the bagging mechanism 31 also includes a lifting cylinder 314 connected to the output end of the linear module 313, a mounting base 315 connected to the output end of the lifting cylinder 314, lifting cylinders 316 and adjusting cylinders 317 mounted on opposite sides of the mounting base 315, and a pushing cylinder 318 connected to the output end of the lifting cylinder 316. The adsorption component 312 is connected to the output end of the pushing cylinder 318, and the two clamping components 311 are symmetrically connected to the output end of the opening and closing cylinder 317. The lifting cylinder 314 is used to drive the two clamping components 311 and the adsorption component 312 to move up and down synchronously, while the adjusting cylinder 317 is used to drive the two clamping components 311 to move towards each other or away from each other in the left and right directions to adjust the distance between them, thereby matching the width of the packaging bag 200 to be clamped. The adsorption component 312 can also move linearly in the up-down and back-forward directions under the drive of the lifting cylinder 316 and the pushing cylinder 318, so as to open the bag opening of the packaging bag 200 held by the two clamping components 311.

[0054] Specifically, the adsorption assembly 312 includes an upper vacuum suction cup 3121 and a lower vacuum suction cup 3122 arranged at intervals along the vertical direction. The upper vacuum suction cup 3121 adsorbs and fixes the upper end of the packaging bag 200 of a certain length, thereby cooperating with the bag supply mechanism 33 to initially open the opening of the packaging bag 200. The lower vacuum suction cup 3122 adsorbs and fixes the lower middle end of the packaging bag 200 of a certain length. The diameter of the upper vacuum suction cup 3121 is smaller than the diameter of the lower vacuum suction cup 3122. There are two upper vacuum suction cups 3121 and one lower vacuum suction cup 3122.

[0055] Combination Figures 9 to 11 as well as Figure 14The bag supply compartment 331 is mounted above the second through hole 352 of the substrate 35 via two support frames 333, and multiple stacked packaging bags 200 are supported in the bag supply compartment 331. The bag supply mechanism 33 also includes a lifting cylinder 333 mounted on the substrate 35, a rotary cylinder 334 connected to the output end of the lifting cylinder 333 and located at the bottom end of the substrate 35, and a suction cup positioning frame 335 connected to the output end of the rotary cylinder 334 and vertically inserted into the second through hole 352. The suction cup positioning frame 335 is used to fix the bag-retrieving suction cup 332. The bag-retrieving suction cup 332 is a vacuum suction cup, and there are multiple of them, including but not limited to bag-retrieving suction cups 332 arranged corresponding to the upper vacuum suction cup 3121 and the lower vacuum suction cup 3122 of the adsorption assembly 312, so as to achieve firm and stable adsorption and transfer. During material feeding, the bag-picking suction cup 332 adsorbs the packaging bag 200 located at the bottom of the bag supply chamber 331 each time. The lifting cylinder 333 then drives the bag-picking suction cup 331 to move downward with the adsorbed packaging bag 200. Then, the rotating cylinder 334 drives the bag-picking suction cup 31 to rotate 90° relative to the bag supply chamber 32, thereby cooperating with the bag filling mechanism 31 to pick up and open the bag.

[0056] See Figure 15 The heat sealing mechanism 34 includes two sealing claws 341 symmetrically arranged in the front-to-back direction, and two pressing plates 342 and two hot pressing plates 343 symmetrically arranged in the left-to-right direction. The sealing claws 341, hot pressing plates 343 and pressing plates 342 are arranged sequentially from top to bottom in the vertical direction. The two pressing plates 342 are located on the opposite lower side of the corresponding hot pressing plates 343. The two sealing claws 341 cooperate to clamp or release the packaging bag 200 from the opposite upper end of the packaging bag 200 from the left and right opposite sides. The two pressing plates 342 cooperate to press the bag opening of the packaging bag 200 from the opposite upper end of the packaging bag 200 from the front and back opposite sides to shrink the bag opening. The two hot pressing plates 343 cooperate to heat seal the bag opening of the packaging bag 200 from the opposite upper end of the packaging bag 200 from the front and back opposite sides.

[0057] The sealing gripper 341 includes two symmetrically arranged grippers 3411 and clamping cylinders 3412 connected to the two grippers 3411 respectively. The clamping cylinders 3412 are used to drive the two grippers 3411 to move towards each other or away from each other to clamp or release the packaging bag 200 located between them. The clamping surfaces of the two grippers 3411 that cooperate have toothed structures, thereby achieving a firm clamping. It should be noted that the hot press plate 343 is also connected to the heating rod 3431, which is connected to an external heater. When the heating rod 3431 heats up under the drive of the heater, the hot press plate 343 achieves heat sealing of the bag opening through heat conduction.

[0058] More specifically, the heat sealing mechanism 34 also includes a protective cover 344 covering the third through hole 353, a first U-shaped frame 345 mounted on the top wall of the protective cover 344, a gripper cylinder 346 mounted on the first U-shaped frame 345, two L-shaped frames 347 symmetrically connected to the output end of the gripper cylinder 346 in the left-right direction, a second U-shaped frame 348 mounted on the bottom side of the gripper cylinder 346, two pressing cylinders 349 symmetrically connected to the two vertical plates 3481 of the second U-shaped frame 348 in the front-back direction, and a hot pressing cylinder 350 mounted on the horizontal plate 3482 of the second U-shaped frame 348. Two clamping cylinders 3412 are symmetrically mounted on two L-shaped frames 347. Two sealing claws 341 are connected to the output ends of the two clamping cylinders 3412, and thus move towards or away from each other under the drive of the claw cylinders 346 to adjust the distance between them, so as to accurately clamp the packaging bag 200 located between them, and adapt to clamping packaging bags 200 of different widths. Two pressing plates 342 are connected to the output ends of two pressing cylinders 349, and thus move towards or away from each other under the drive of the two pressing cylinders 349 to press against the front and rear side walls of the packaging bag 200 at opposite upper ends, so that the front and rear side walls of the packaging bag 200 come closer to each other to shrink the bag opening. Two hot press plates 343 are symmetrically connected to the output end of the hot press cylinder 350 in the front-to-back direction, so that they move towards each other or away from each other under the drive of the hot press cylinder 350 to heat seal the opening of the packaging bag 200.

[0059] It should be noted that the bagged food packaging machine 100 of the present invention also includes a control system (not shown in the figure). The control system is connected to the feeding device 10, the dispensing device 20, and the packaging device 30 respectively, and is used to control the coordinated actions between the devices. The control system is a conventional control system, and its structure and control principle are well known in the art; therefore, it will not be described in detail here.

[0060] See Figures 1 to 15 The working principle of the bagged food packaging machine 100 of the present invention will be explained as follows:

[0061] First, after the vacuum packaging equipment fills the material hopper 12 with individually packaged small bags of food, or after manual pouring of purchased or transported boxed or bagged small bags of food into the material hopper 12, the belt conveyor 11 operates, transporting the small bags of food in the material hopper 12 batch by batch upwards until they leave the material hopper 12 and fall from a height onto the first conveyor belt 21 of the distributing device 20. During the falling process, the small bags are dispersed and slid onto the first conveyor belt 21 by the guidance and receiving components 60 of the two second side plates 18. Then, through the second conveyor belt 22's further lifting and dropping, the small bags of food that are not completely separated in the same batch or that are accidentally stacked together during the falling process are thoroughly separated. During the process of separating the small bags of food and conveying them upwards, the blocking block 27 can also block the stacked small bags of food, scraping the upper small bag of food back onto the second conveyor belt 22, allowing only the lower small bag of food to pass through, so that the small bags of food that are not completely separated are completely separated, and then conveyed one by one onto the third conveyor belt 23 to the fourth conveyor belt 24. When conveying on the fourth conveyor belt 24, the conveying position of the conveyed small bags of food is also corrected from at least one side of the left and right sides by the limiting member 28, so that each small bag of food is accurately aligned and conveyed to the guide bend 243, and then falls into the material cylinder 321 of the dispensing mechanism 32 of the dispensing device 30 under the guidance of the guide bend 243, thereby completing the previous dispensing operation.

[0062] When the feed cylinder 321 receives the number of small bags of food corresponding to the quantity to be packaged in the packaging bag 200, the bag-feeding mechanism 33's bag-picking suction cup 331 picks up the packaging bag 200 at the bottom of the bag-feeding bin 332 and flips it downwards and forwards to a position opposite to the bag-filling mechanism 31. The bag-filling mechanism 31 then moves slightly towards the bag-feeding mechanism 33, that is, moves backwards. First, the bag-picking claws 311 clamp the packaging bag 200 from the left and right opposite sides, and then the suction component 312 clamps the clamped packaging bag 200 from the front. The front side wall of the bag is adsorbed, and the bag-feeding mechanism 33's bag-picking suction cup 331 adsorbs the rear side wall of the packaging bag 200, thereby initially opening the bag opening of the packaging bag 200. The bag-filling mechanism 31 then brings the opened packaging bag 200 back to its initial position and moves it upwards to the lower end 3263 of the two opening and closing parts 3261 that are fitted at the first through hole 351. At the same time, the material cylinder 321, which is already filled with the small bag of food to be packaged, also rotates to the first through hole 351. Then, the feeding assembly 327 blows air into the packaging bag 200. The packaging bag 200 is opened relatively wide, and then the opening and closing component 326 is activated to support and fix the opening of the packaging bag 200 from the inside out, allowing the small bags of food in the material cylinder 321 to fall smoothly into the packaging bag 200 with its opening already supported and fixed, thus completing the bagging operation. After bagging, the bagging mechanism 31 continues to move the packaging bag 200 containing the small bags of food toward the heat sealing mechanism 34. Finally, the two sealing claws 341 of the heat sealing mechanism 34 are activated to clamp the packaging bag 200 conveyed by the bagging mechanism 31, and the bag is filled. Mechanism 31 moves in the opposite direction and returns to its initial position. Then, the two pressing plates 342 of the heat sealing mechanism 34 work together to press the packaging bag 200 held by the two sealing claws 341 from the front and rear sides, so that the opening of the packaging bag 200 is relatively reduced and closed. Then, the two hot pressing plates 343 work together to heat press the closed packaging bag 200 from the front and rear sides to heat seal the bag opening. After the heat sealing is completed, the two sealing claws 341 move away from each other and release the packaging bag 200, allowing it to fall into the receiving box below, thus completing the dispensing operation.

[0063] By repeatedly performing the above actions, the process of separating and packaging small bags of food that are piled together can be automated.

[0064] Compared with the prior art, the bagged food packaging machine 100 of the present invention has a simple overall structure, small size, and reasonable and compact layout. On the one hand, by compactly arranging at least two packaging units B00 on the frame A00, the overall size of the machine is effectively reduced, and the specific number of packaging units B00 can be set according to actual needs. Thus, it can not only efficiently realize the material distribution and packaging of large quantities of bagged food, effectively improving packaging efficiency, but also, each packaging unit B00 operates independently, which is convenient for use and maintenance. One, two or more packaging units B00 can be activated according to production needs, making it flexible and more economical and practical. Furthermore, the feeding device 10, dispensing device 20, and packaging device 30 of the packaging unit B00 are correspondingly installed on the detachably connected first frame A01, second frame A02, and third frame A03. They can be assembled according to actual needs, achieving semi-automatic packaging to meet the needs of some small food enterprises and individual users. That is, semi-automatic packaging can be achieved by combining automatic dispensing of materials by the front-end feeding device 10 and dispensing device 20 with manual packaging, or by combining manual dispensing with automatic packaging by the rear-end packaging device 30. Alternatively, the entire machine can achieve automated dispensing and packaging operations, thus taking into account the needs of large food enterprises. It is more flexible and mobile in use and has a wider audience. On the other hand, the feeding device 10 of the packaging unit B00 uses an inclined belt conveyor 11 to carry small bags of food from its material bin 12 in batches away from the material bin 12 and drop them from a height onto the dispensing device 20. The height difference causes each batch of small bags of food to fall separately onto the dispensing device 20. Through the sequentially connected first conveyor belt 21, second conveyor belt 22, third conveyor belt 23, and fourth conveyor belt 24, the distance between the initially dispersed small bags of food is continuously increased until each small bag of food is conveyed one by one from the fourth conveyor belt 24 and falls into the dispensing mechanism 32 of the dispensing device 30. This achieves efficient and convenient dispensing operations. Combined with the bagging mechanism 31 of the dispensing device 30, which is arranged sequentially on its upper side... The feeding mechanism 32, bag supply mechanism 33, and heat sealing mechanism 34 can be moved with only a small movement to move the packaging bag 200 provided by the bag supply mechanism 33 to the bottom of the feeding mechanism 32. With the cooperation of the bag supply mechanism 33, the opening of the packaging bag 200 is opened, allowing the small bags of food at the feeding mechanism 32 to fall into the packaging bag 200. Then, the heat sealing mechanism 34 heat seals the packaging bag 200 transferred by the bag filling mechanism 31 to seal it, thus efficiently completing the entire packaging operation. In particular, the number of small bags of food falling from the feeding mechanism 32 each time corresponds to the number of small bags of food to be packaged in the packaging bag 200, thus simply and effectively ensuring the consistency of the number of small bags of food packaged in each packaging bag 200 and effectively improving the accuracy of packaging.

[0065] The above-disclosed examples are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any equivalent variations made in accordance with the claims of the present invention are within the scope of the present invention.

Claims

1. A bagged food packaging machine, used to divide stacked small bags of food into packaging bags according to a certain quantity, characterized in that, The bagged food packaging machine includes a frame and at least two packaging units arranged side-by-side along the width of the frame. The frame includes a first frame, a second frame, and a third frame detachably connected along its length. Each packaging unit includes a feeding device, a dispensing device, and a packaging device correspondingly installed on the first frame, the second frame, and the third frame. The feeding device uses an inclined belt conveyor to carry small bags of food accumulated in a material bin out of the material bin batch by batch and drop them from a height onto the dispensing device. The dispensing device uses a first conveyor belt, a second conveyor belt, a third conveyor belt, and a fourth conveyor belt connected in sequence to convey each batch of small bags of food to the dispensing mechanism of the packaging device. The bagging mechanism of the packaging device travels back and forth between the dispensing mechanism, the bag feeding mechanism, and the heat sealing mechanism arranged in sequence on its upper side to obtain packaging bags provided by the bag feeding mechanism and transfer the packaging bags to the dispensing mechanism. Below the mechanism, and in the process of bag taking, the bag opening is opened with the cooperation of the bag feeding mechanism, so that the small bags of food at the feeding mechanism can fall into the bag. The number of small bags of food falling each time corresponds to the number of bags to be packaged in the bag. The bag filling mechanism also moves the filled bag to the heat sealing mechanism, which heat seals the bag opening. The bag filling mechanism clamps the bag with two clamping components and opens the bag opening with an adsorption component arranged between the two clamping components. The two clamping components are symmetrically arranged with the adsorption component as the center, and are used to clamp the bag from the left and right opposite sides. The adsorption component can adsorb and pull the opposite front sidewall of the clamped bag from the opposite front side. Thus, with the adsorption force of the bag feeding mechanism on the rear sidewall of the bag, the bag opening is opened.

2. The bagged food packaging machine according to claim 1, characterized in that, The first frame has an inclined mounting surface for mounting the belt conveyor mechanism, the second frame has a first horizontal mounting surface for mounting the material distribution device, and the third frame has a second horizontal mounting surface for mounting the packaging device, wherein the height of the first horizontal mounting surface is higher than the height of the second horizontal mounting surface.

3. The bagged food packaging machine according to claim 1, characterized in that, The material bin is an open bin with a relatively small lower end and a relatively large upper end. The lower end of the conveyor belt of the belt conveyor mechanism passes through the material bin to form an input end, while the upper end passes obliquely upward through the material bin and is suspended on the top side of the first conveyor belt to form an output end. The conveyor belt is evenly distributed with material guide plates, and each adjacent material guide plate can hold at least one small bag of food.

4. The bagged food packaging machine according to claim 1, characterized in that, The first conveyor belt and the fourth conveyor belt are both arranged horizontally, and the conveying surface of the first conveyor belt is higher than that of the fourth conveyor belt. The second conveyor belt and the third conveyor belt are both arranged at an angle, and the angle of inclination of the conveying surface of the second conveyor belt is greater than that of the conveying surface of the third conveyor belt.

5. The bagged food packaging machine according to claim 4, characterized in that, The material distribution device further includes a receiving assembly having a receiving plate and a bending plate, or having a receiving plate, a bending plate and an adjusting plate. The receiving plate is arranged obliquely between the first conveyor belt and the conveyor belt of the belt conveyor mechanism, and is wider at the top and narrower at the bottom. The two bending plates are symmetrically arranged on the left and right opposite sides of the first conveyor belt and the receiving plate, and the distance between them gradually decreases from the receiving plate towards the first conveyor belt to form a constricted guide structure. The adjusting plate is arranged obliquely and is positionally adjustable between one of the two bending plates and the receiving plate, and a limiting channel is formed between the adjusting plate, the receiving plate and the other bending plate.

6. The bagged food packaging machine according to any one of claims 1 to 5, characterized in that, The feeding device further includes two first side plates and two second side plates. The two first side plates are symmetrically arranged on the left and right opposite sides of the conveyor belt of the belt conveyor mechanism and are located between the open end of the material bin and the output end of the conveyor belt, thereby forming a constricted guide structure. The opposite upper ends of the two second side plates are connected to the two first side plates one by one. The opposite lower ends of the two second side plates are symmetrically suspended on the top end of the first conveyor belt and have corresponding inward buckles formed by bending towards each other.

7. The bagged food packaging machine according to claim 6, characterized in that, The bag feeding mechanism uses a bag-picking suction cup to sequentially pick up the packaging bags stacked in its bag feeding chamber from below until they are detached from the bag feeding chamber, and then flips them forward to a position opposite to the bag filling mechanism. The material dispensing mechanism uses two material cylinders to alternately receive small bags of food corresponding to the required number of bags to be packaged in the packaging bag, and alternately transfers the received small bags of food to the top of the bag filling mechanism for dispensing.

8. The bagged food packaging machine according to claim 7, characterized in that, The two material cylinders are symmetrically and rotatably arranged below the output end of the fourth conveyor belt. The feeding mechanism also includes an opening and closing assembly arranged at the opposite bottom end of the third frame for opening and closing relative to the opposite material cylinder to allow or prevent the small bag of food in the material cylinder from falling.

9. The bagged food packaging machine according to claim 7, characterized in that, The heat-sealing mechanism includes two sealing claws symmetrically arranged in the front-to-back direction, and two pressing plates and two hot pressing plates symmetrically arranged in the left-to-right direction. The two pressing plates are located on the opposite lower side of the hot pressing plates on corresponding sides. The two sealing claws cooperate to clamp or release the packaging bag from the opposite left and right sides. The two pressing plates cooperate to press the opening of the packaging bag from the opposite front and back sides to shrink the opening. The two hot pressing plates cooperate to heat seal the opening of the packaging bag from the opposite front and back sides.

Images