Bag opening machine for fruit preservation bags
By designing a bag-removing machine with a bag-removing motor driving a bag-removing roller, the problem of difficult removal of fruit preservation bags has been solved, achieving an efficient and safe bag-removing process and improving fruit processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN PINZHU INTELLIGENT EQUIPMENT CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-06-02
Smart Images
Figure CN224312176U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of bag opening equipment for food preservation bags, and in particular to a bag opening machine for fruit preservation bags. Background Technology
[0002] To extend the market sales period of fruit and enrich the market supply, it is necessary to slow down the ripening process of harvested fruit as much as possible to extend its shelf life. Ripe fruit continuously releases ethylene gas; the more mature the fruit, the faster the release of ethylene gas. Ethylene gas rapidly accelerates the ripening process and ultimately leads to spoilage. Currently, the common method in the market is to seal fruit in sealed bags to prevent the diffusion of ethylene gas and the ripening of adjacent fruits. The sealed bags also prevent the rapid spread of putrefactive molds, which can cause large-scale spoilage. Furthermore, they retain internal moisture, preventing rapid water loss, inhibiting aerobic respiration, reducing energy consumption, and achieving the purpose of preservation. Additionally, they protect the fruit from minor scratches and bumps, preserving its appearance. Machine-packaged fruit in preservation bags is loose and easy to open. In contrast, manually packaged preservation bags are more tightly sealed, making them more difficult to open. When a plastic bag is pressed tightly against an object, the tearing roller has difficulty tearing and rolling it up. Especially in dry weather, the plastic bag will stick tightly to the object due to static electricity, and the friction between the plastic bag and the tearing roller will be reduced, making it even more difficult for the tearing roller to tear and roll up the plastic bag, resulting in low bag opening efficiency. Summary of the Invention
[0003] In order to overcome the technical defects mentioned in the background art, the purpose of this utility model is to provide a bag-opening machine for fruit preservation bags.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A bag-opening machine for fruit preservation bags includes a frame, a fruit feeding device mounted on the frame, a bag-crushing device mounted at the discharge end of the fruit feeding device, and a bag-opening device mounted at the discharge port of the bag-crushing device. The bag-crushing device includes a bag-crushing hopper, an opening and closing assembly for controlling the opening or closing of the discharge port of the bag-crushing hopper, a bag-crushing motor, and a bag-crushing roller for crushing the bag. The bag-crushing hopper is open on both the upper and lower sides and is located below the discharge end of the fruit feeding device. The opening and closing assembly is mounted on the bag-crushing hopper. The output shaft of the bag-crushing motor is fixedly connected to one end of the bag-crushing roller, and the other end of the bag-crushing roller is bearing-connected to the other end of the bag-crushing hopper. One side of the bag-crushing roller along its length is located inside the bag-crushing hopper.
[0006] By adopting the above technical solution, the bag-rubbing motor can drive the bag-rubbing roller to rotate. The bag-rubbing roller can use friction to rub the plastic bag on the surface of the fruit inside the bag-rubbing hopper against the fruit to loosen the plastic bag from the fruit surface, thereby improving the efficiency of bag removal, preventing the plastic bag from sticking tightly to the fruit surface, making bag removal easier and more efficient.
[0007] Furthermore, the kneading bag includes a first panel, a second panel, a third panel, and a fourth panel connected sequentially to form a frame. The first panel and the third panel are arranged opposite to each other, and a set of opening and closing components is fixedly installed on both the first panel and the third panel. The second panel includes a fixing part and a closing part. The lower end of the fixing part is hinged to the upper end of the closing part. The opening and closing components are fixedly connected to the closing part and are used to drive the closing part to swing towards the fourth panel to close or open the discharge port. The structure is simple, the operation is convenient, and it can also play a buffering role, slowing down the speed of fruit dropping and preventing damage to the fruit.
[0008] Furthermore, the first panel and the third panel have the same structure and are symmetrically arranged along the centerline of the kneading bag hopper. The first panel has a through arc-shaped groove. The second panel has connecting shafts protruding from both ends; one end of each connecting shaft passes through the corresponding groove and connects to the opening and closing assembly, improving the accuracy and efficiency of the back-and-forth swing, and resulting in a more stable structural connection and operation.
[0009] Furthermore, the opening and closing assembly includes a connector and an opening / closing cylinder. The output shaft of the opening / closing cylinder is fixedly connected to one end of the connector, and the opening / closing cylinder is inclined. The other end of the connector is connected to a bearing at one end of the connecting shaft, resulting in stable transmission, simple structure, and cost savings.
[0010] Furthermore, the first panel includes a sealing plate, a fixing plate, and a support rod. The sealing plate is connected to the end of the sealing part and the fourth panel. The lower side of the sealing plate is connected to one side of the fixing plate in an L-shape, making installation and disassembly more convenient. The other side of the fixing plate is fixedly connected to one end of the support rod. The support rod is vertically arranged, and its lower end is fixedly connected to the frame. This arrangement avoids misalignment, resulting in a more compact structure, higher space utilization, and reduced fruit falling distance.
[0011] Furthermore, the lower end of the fourth panel is lower than the height of the second panel, and the kneading roller is disposed below the fourth panel. One end of the kneading roller is bearing-connected to the first panel, and the other end of the kneading roller is shaft-connected to the third panel. The structure is compact, easy to install and disassemble, and has lower cost.
[0012] Furthermore, the fruit-feeding device includes a conveyor frame, a transmission assembly, a rotary motor, multiple conveyor rollers arranged along the conveying direction, a limiting rod, a brush roller, and two mounting seats. The discharge end of the conveyor frame is fixed to the machine frame. Multiple conveyor rollers are spaced apart along the length of the conveyor frame, and the transmission assembly simultaneously drives the multiple conveyor rollers to rotate synchronously. A mounting seat is provided on each side of the conveyor frame. The limiting rod and the brush roller are both mounted on the two mounting seats, with the height of the limiting rod higher than the height of the brush roller. The output shaft of the rotary motor is fixedly connected to one end of the brush roller. A fruit-feeding channel is provided between the lower surface of the brush roller and the upper surface of the corresponding conveyor roller. The fruit-feeding channel is used for single-row fruit feeding. Continuous roller-type fruit feeding prevents damage to the fruit. Continuous row-type fruit feeding improves feeding efficiency, ensures stable feeding, and also prevents damage to the fruit. The brush roller and limiting rod installed above the conveyor rollers prevent material stacking and excessive feeding.
[0013] Furthermore, the bag-opening device also includes a bag-opening hopper, a first conveyor belt, and a second conveyor belt. The bag-opening hopper is located below the bag-crushing hopper, and is open at both ends. It is situated at the connection point of the first and second conveyor belts. The first and second conveyor belts are positioned facing each other to tear the preservation bags, ensuring flexible contact and protecting the fruit. Moreover, the preservation bags adhering to the first and second conveyor belts are easier to clean, making the device more convenient to use.
[0014] In summary, the beneficial effects of this utility model are as follows:
[0015] The bag-rubbing motor in this invention can drive the bag-rubbing roller to rotate. The bag-rubbing roller can use friction to rub the plastic bag on the surface of the fruit inside the bag-rubbing hopper against the fruit to loosen the plastic bag from the fruit surface, thereby improving the efficiency of bag removal, preventing the plastic bag from sticking tightly to the fruit surface, making bag removal easier and more efficient. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of one embodiment of the bag-opening machine for fruit preservation bags according to the present invention.
[0017] Figure 2 This is a schematic diagram of another perspective of an embodiment of the bag-opening machine for fruit preservation bags according to this utility model.
[0018] Figure 3 This is a schematic diagram of the internal installation structure of an embodiment of the bag-opening machine for fruit preservation bags according to this utility model.
[0019] Figure 4 This is a schematic diagram of the structure of a bag-crushing device for a bag-opening machine for fruit preservation bags according to this utility model.
[0020] Explanation of the reference numerals in the figure:
[0021] 1. Bag-opening machine for fruit preservation bags; 2. Frame; 3. Fruit loading device; 31. Conveyor frame; 32. Transmission assembly; 33. Rotary motor; 34. Conveyor roller; 35. Limiting rod; 36. Brush roller; 37. Mounting base; 4. Bag-crushing device; 41. Bag-crushing hopper; 411. First panel; 4111. Slide groove; 4112. Sealing plate; 4113. Fixing plate; 4114. Support rod; 4115. Reinforcing plate; 41 2. Second panel; 4121. Fixing part; 4122. Sealing part; 4123. Connecting shaft; 413. Third panel; 414. Fourth panel; 42. Opening and closing assembly; 421. Connector; 422. Opening and closing cylinder; 423. Connecting rod; 43. Bag kneading motor; 44. Bag kneading roller; 51. Bag unpacking hopper; 52. First conveyor belt; 53. Second conveyor belt; 54. Pushing assembly; 6. Discharge station; 7. Storage basket. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.
[0023] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.
[0024] In the description of this utility model, the use of terms such as "several" means one or more, with "multiple" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.
[0025] The following is in conjunction with the appendix Figure 1-4 The embodiments of this utility model will be described in further detail below.
[0026] A bag-opening machine 1 for fruit preservation bags, such as Figure 1 , Figure 2 , Figure 3 As shown, it includes a frame 2, a fruit-feeding device 3 mounted on the frame 2, a bag-crushing device 4 mounted at the discharge end of the fruit-feeding device 3, and a bag-unloading device mounted at the discharge port of the bag-crushing device 4. The bag-crushing device 4 includes a bag-crushing hopper 41, an opening / closing assembly 42 for controlling the opening or closing of the discharge port of the bag-crushing hopper 41, a bag-crushing motor 43, and a bag-crushing roller 44 for bag crushing. The bag-crushing hopper 41 is open on both the upper and lower sides and is located below the discharge end of the fruit-feeding device 3. The opening / closing assembly 42 is mounted on the bag-crushing hopper 41. The output shaft of the bag-crushing motor 43 is fixedly connected to one end of the bag-crushing roller 44, and the other end of the bag-crushing roller 44 is bearing-connected to the other end of the bag-crushing hopper 41. One side of the bag-crushing roller 44 along its length is located inside the bag-crushing hopper 41.
[0027] Among them, the bag-rubbing motor 43 can drive the bag-rubbing roller 44 to rotate. The bag-rubbing roller 44 can rub the preservation bag on the surface of the fruit in the bag-rubbing hopper 41 against the fruit through the action of friction, so as to loosen the preservation bag from the fruit surface, thereby improving the efficiency of bag removal, preventing the preservation bag from sticking tightly to the fruit surface, making bag removal easier and more efficient.
[0028] In some embodiments, please refer to Figure 2 , Figure 3 , Figure 4 The kneading bag hopper 41 includes a first panel 411, a second panel 412, a third panel 413, and a fourth panel 414 connected sequentially to form a frame. The first panel 411 and the third panel 413 are positioned opposite each other, and each of the first panel 411 and the third panel 413 is fixedly equipped with an opening and closing assembly 42. The second panel 412 includes a fixing part 4121 and a closing part 4122. The lower end of the fixing part 4121 is hinged to the upper end of the closing part 4122. The opening and closing assembly 42 is fixedly connected to the closing part 4122 to drive the closing part 4122 to swing towards the fourth panel 414 to close or open the discharge port. The structure is simple, the operation is convenient, and it can also act as a buffer, slowing down the speed of fruit descent and preventing damage to the fruit.
[0029] Preferably, the first panel 411 and the third panel 413 have the same structure and are symmetrically arranged along the central axis of the kneading bag hopper 41. The first panel 411 has a through arc-shaped groove 4111. The two ends of the second panel 412 have connecting shafts 4123 protruding from them. One end of the connecting shaft 4123 passes through the corresponding groove 4111 and is connected to the opening and closing assembly 42, which improves the accuracy and efficiency of the back-and-forth swing, and makes the structural connection and operation more stable.
[0030] In some embodiments, please refer to Figure 4 The opening / closing assembly 42 includes a connector 421 and an opening / closing cylinder 422. The output shaft of the opening / closing cylinder 422 is fixedly connected to one end of the connector 421, and the opening / closing cylinder 422 is inclined. The other end of the connector 421 is connected to one end of the connecting shaft 4123 by a bearing, resulting in stable transmission, simple structure, and cost savings.
[0031] The two opening and closing cylinders 422 are connected by a connecting rod 423, which makes installation more convenient and can also improve the installation accuracy of the two opening and closing cylinders 422, so as to make the control of the rotation of the closing part 4122 more precise.
[0032] For preferred options, please refer to [the provided text]. Figure 4 The first panel 411 includes a sealing plate 4112, a fixing plate 4113, and a support rod 4114. The sealing plate 4112 is connected to the end of the sealing part and the fourth panel 414. The lower side of the sealing plate 4112 is connected to one side of the fixing plate 4113 in an L-shape, making installation and disassembly more convenient. The other side of the fixing plate 4113 is fixedly connected to one end of the support rod 4114. The support rod 4114 is vertically arranged, and its lower end is fixedly connected to the frame 2. This design avoids misalignment, resulting in a more compact structure, higher space utilization, and reduced fruit drop distance. The sealing plate 4112 and the fixing plate 4113 are integrally bent and formed, making processing easier, assembly more efficient, and providing higher stability and load-bearing strength. Each fixing plate 4113 is equipped with two support rods 4114 for more stable installation. Furthermore, several reinforcing plates 4115 can be connected between the sealing plate 4112 and the fixing plate 4113 to improve the overall load-bearing strength.
[0033] Specifically, the lower end of the fourth panel 414 is lower than the height of the second panel 412, and a bag-rubbing roller 44 is installed below the fourth panel 414. One end of the bag-rubbing roller 44 is connected to the first panel 411 by a bearing, and the other end is connected to the third panel 413 by a shaft. This design is compact, easy to install and disassemble, and lower in cost. The bag-rubbing roller 44 is designed as a brush roller 36, which helps protect the fruit and prevent damage.
[0034] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 3The fruit-feeding device 3 includes a conveyor frame 31, a transmission assembly 32, a rotary motor 33, multiple conveyor rollers 34 arranged along the conveying direction, a limiting rod 35, a brush roller 36, and two mounting seats 37. The discharge end of the conveyor frame 31 is fixed to the machine frame 2. Multiple conveyor rollers 34 are spaced apart along the length of the conveyor frame 31. The transmission assembly 32 is used to drive multiple conveyor rollers 34 to rotate synchronously. A mounting seat 37 is provided on both sides of the conveyor frame 31. The limiting rod 35 and the brush roller 36 are both mounted on the two mounting seats 37. The height of the limiting rod 35 is higher than the height of the brush roller 36. The output shaft of the rotary motor 33 is fixedly connected to one end of the brush roller 36. A fruit-feeding channel is provided between the lower surface of the brush roller 36 and the upper surface of the corresponding conveyor roller 34. The fruit-feeding channel is used for single-row fruit feeding. The continuous roller-type fruit feeding prevents damage to the fruit. Continuous row feeding improves the efficiency of fruit feeding, ensures stable fruit feeding, and also prevents damage to the fruit. A brush roller 36 and a limiting rod 35 are installed above the conveyor roller 34 to prevent material from stacking and excessive feeding.
[0035] The transmission assembly 32 can use a drive structure consisting of a conveyor motor and a transmission chain to drive multiple conveyor rollers 34 to rotate synchronously, resulting in a more stable structure. Additionally, the conveyor rollers 34 can be coated with rubber to effectively prevent fruit damage.
[0036] In some embodiments, please refer to Figure 1 , Figure 3 The bag-opening device also includes a bag-opening hopper 51, a first conveyor belt 52, and a second conveyor belt 53. The bag-opening hopper 51 is located below the bag-crushing hopper 41, and is open at both ends. It is situated at the connection point of the first conveyor belt 52 and the second conveyor belt 53. The first conveyor belt 52 and the second conveyor belt 53 are positioned facing each other to tear the preservation bags, ensuring gentle contact and protecting the fruit. Furthermore, the preservation bags adhering to the first conveyor belt 52 and the second conveyor belt 53 are easier to clean, making the device more convenient to use.
[0037] The unpacking hopper 51 is equipped with two sets of pushing components 54, which are used to push the unpacked fruit in the unpacking hopper 51 to the discharge station 6. Storage baskets 7 for storing the removed plastic bags are located below the first conveyor belt 52 and the second conveyor belt 53.
[0038] During operation, fruits in preservation bags are sequentially conveyed from the conveyor roller 34 to the discharge end and fall into the bag-rubbing hopper 41. At this time, the opening / closing cylinder 422 retracts, causing the sealing part 4122 to close the discharge port. The bag-rubbing motor 43 drives the bag-rubbing roller 44 to rotate and rub the fruit in the bag-rubbing hopper 41, causing the preservation bag to detach from the fruit and loosen, preventing the preservation bag from adhering firmly to the fruit surface, making it easier to remove the bag. Next, the opening / closing cylinder 422 extends, causing the sealing part to swing in the opposite direction to open the discharge port. The rubbed fruit falls into the unpacking hopper 51. The first conveyor belt 52 and the second conveyor belt 53 start, performing the unpacking operation on the fruit in the unpacking hopper 51. Simultaneously, the opening / closing cylinder 422 retracts, causing the sealing part 4122 to close the discharge port, and the bag-rubbing operation is performed synchronously, improving the efficiency of unpacking. This fruit preservation bag unpacking machine can feed multiple fruits simultaneously and tear the bags at the same time, resulting in high unpacking efficiency. Of course, this fruit preservation bag unpacking machine can also be used for unpacking other materials in addition to fruit bags, and there are no limitations on its use here.
[0039] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.
Claims
1. A bag-opening machine for fruit preservation bags, characterized in that, The machine includes a frame (2), a feeding device (3) mounted on the frame (2), a bag-forming device (4) mounted at the discharge end of the feeding device (3), and a bag-unpacking device mounted at the discharge port of the bag-forming device (4); the bag-forming device (4) includes a bag-forming hopper (41), an opening and closing assembly (42) for controlling the opening or closing of the discharge port of the bag-forming hopper (41), a bag-forming motor (43), and a bag-forming roller (44) for bag-forming; the bag-forming hopper (41) The bag-forming hopper (41) is open on both the top and bottom sides and is located below the discharge end of the fruit feeding device (3). The opening and closing assembly (42) is set on the bag-forming hopper (41). The output shaft of the bag-forming motor (43) is fixedly connected to one end of the bag-forming roller (44), and the other end of the bag-forming roller (44) is connected to the other end of the bag-forming hopper (41) by a bearing. One side of the bag-forming roller (44) along the length direction is located inside the bag-forming hopper (41).
2. The bag-opening machine for fruit preservation bags according to claim 1, characterized in that, The kneading bag hopper (41) includes a first panel (411), a second panel (412), a third panel (413), and a fourth panel (414) connected in sequence to form a frame. The first panel (411) and the third panel (413) are arranged opposite to each other. A set of opening and closing components (42) is fixedly provided on both the first panel (411) and the third panel (413). The second panel (412) includes a fixing part (4121) and a closing part (4122). The lower end of the fixing part (4121) is hinged to the upper end of the closing part (4122). The opening and closing components (42) are fixedly connected to the closing part (4122) to drive the closing part (4122) to swing towards the fourth panel (414) to close or open the discharge port.
3. The bag-opening machine for fruit preservation bags according to claim 2, characterized in that, The first panel (411) and the third panel (413) have the same structure and are symmetrically arranged along the central axis of the kneading bag hopper (41); the first panel (411) is provided with a through arc-shaped groove (4111); the two ends of the second panel (412) are provided with connecting shafts (4123), one end of the connecting shaft (4123) passes through the corresponding groove (4111) and is connected to the opening and closing assembly (42).
4. The bag-opening machine for fruit preservation bags according to claim 3, characterized in that, The opening and closing assembly (42) includes a connector (421) and an opening and closing cylinder (422); the output shaft of the opening and closing cylinder (422) is fixedly connected to one end of the connector (421), and the opening and closing cylinder (422) is inclined; the other end of the connector (421) is connected to one end of the connecting shaft (4123) by a bearing.
5. The bag-opening machine for fruit preservation bags according to claim 2, characterized in that, The first panel (411) includes a sealing plate (4112), a fixing plate (4113), and a support rod (4114); the sealing plate (4112) is connected to the end of the sealing part (4122) and the fourth panel (414), the lower side of the sealing plate (4112) is connected to one side of the fixing plate (4113) and is arranged in an L-shape; the other side of the fixing plate (4113) is fixedly connected to one end of the support rod (4114), the support rod (4114) is arranged vertically, and the lower end of the support rod (4114) is fixedly connected to the frame (2).
6. The bag-opening machine for fruit preservation bags according to claim 2, characterized in that, The lower end of the fourth panel (414) is lower than the height of the second panel (412), and the kneading roller (44) is provided below the fourth panel (414); one end of the kneading roller (44) is connected to the first panel (411) by a bearing, and the other end of the kneading roller (44) is connected to the third panel (413) by a shaft.
7. The bag-opening machine for fruit preservation bags according to claim 1, characterized in that, The fruit feeding device (3) includes a conveyor frame (31), a transmission assembly (32), a rotary motor (33), multiple conveyor rollers (34) arranged along the conveying direction, a limiting rod (35), a brush roller (36), and two mounting bases (37); the discharge end of the conveyor frame (31) is fixed to the machine frame (2), and multiple conveyor rollers (34) are spaced apart along the length of the conveyor frame (31). The transmission assembly (32) is used to simultaneously drive multiple conveyor rollers (34) to rotate synchronously; the conveyor... A mounting base (37) is provided on both sides of the frame (31). The limiting rod (35) and the brush roller (36) are both provided on the two mounting bases (37). The height of the limiting rod (35) is higher than the height of the brush roller (36). The output shaft of the rotary motor (33) is fixedly connected to one end of the brush roller (36). A fruit loading channel is provided between the lower surface of the brush roller (36) and the upper surface of the corresponding conveying roller (34). The fruit loading channel is used for single-row fruit loading.
8. The bag-opening machine for fruit preservation bags according to claim 1, characterized in that, The bag-opening device also includes a bag-opening hopper (51), a first conveyor belt (52), and a second conveyor belt (53); the bag-opening hopper (51) is located below the bag-rubbing hopper (41), the bag-opening hopper (51) is open at the top and bottom, and the bag-opening hopper (51) is located at the connection between the first conveyor belt (52) and the second conveyor belt (53); the first conveyor belt (52) and the second conveyor belt (53) are arranged facing each other to tear the food storage bag.