Automatic food packaging all-in-one machine
By designing the film loading and locking components, the high energy consumption problem of fully automatic stretch film packaging machines when changing film rolls is solved, enabling rapid film roll replacement and energy saving, and simplifying the operation process.
Patent Information
- Application Number
- CN202422862186.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-23
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-11-23
AI Technical Summary
Existing fully automatic stretch film packaging machines require the use of an air shaft when changing stretch film, which leads to increased energy consumption and production costs.
The system employs a film loading assembly and a locking assembly. The locking assembly unlocks the T-shaped slide bar, allowing the steel balls to fall and reduce the support force of the film roll, facilitating replacement. After film replacement, the steel balls slide in the opposite direction to increase the support force and lock, thus replacing the air shaft to fix the film roll.
It enables rapid replacement of membrane rolls, saves energy, reduces production costs, is simple and convenient to operate, and avoids the use of traditional air shafts.
Smart Images

Figure CN223546578U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of automatic packaging integrated machines, specifically an automatic food packaging integrated machine. Background Technology
[0002] Fully automatic stretch film packaging machines are auxiliary devices used in food production and processing to seal food for better storage and transportation, and facilitate subsequent sales. They are widely used in the field of packaging equipment technology. When using existing fully automatic stretch film packaging machines, the packaging film is placed on top of the food to be packaged by the material roller, and then fixed by the heat pressing mechanism.
[0003] Existing fully automatic stretch film packaging machines typically use an air shaft to fix the stretch film. When replacing the stretch film, the air shaft needs to be deflated by pressing the air valve before the used stretch film roll can be removed and a new stretch film can be replaced. After replacement, the air shaft needs to be re-inflated to tighten the film roll and fix it. This method requires an inflation device, which increases energy consumption and production costs. Utility Model Content
[0004] The purpose of this utility model is to provide an integrated automatic food packaging machine in order to further reduce equipment costs.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic food packaging machine, comprising a stretch film packaging machine, the stretch film packaging machine comprising a machine body, a support platform, a rotating shaft, a rotating cylinder, and pressure rods; two support platforms are provided, the two support platforms are respectively fixedly connected to the top of the outer wall of the machine body and one end of the outer wall; the rotating shaft is fixedly connected to one side of the outer wall of the support platform; the rotating cylinder is sleeved on the outer wall of the rotating shaft and rotatably connected to the outer wall of the support platform; two pressure rods are provided, the two pressure rods are symmetrically arranged and fixedly connected to both sides of the outer wall of the rotating cylinder, and the outer wall of one pressure rod is in contact with the outer wall of the support platform; a film loading assembly is provided on one side of the outer wall of the support platform, the film loading assembly comprising a T-shaped column, a T-shaped groove, a T-shaped slide rod, a sleeve, and steel balls;
[0006] The T-shaped column is fixedly connected to the outer wall of the support platform and is located diagonally below the rotating shaft. The T-shaped groove is provided at one end of the outer wall of the T-shaped column and extends inward. The T-shaped sliding rod is slidably connected to the inner wall of the T-shaped groove. The sleeve is sleeved on the outer wall of the T-shaped column. Multiple steel balls are provided, and the multiple steel balls are arranged linearly on the inner wall of the sleeve.
[0007] A locking assembly is provided on one side of the outer wall of the support platform to lock the T-shaped slide rod.
[0008] As a further improvement of this utility model: the stretch film packaging machine is also provided with a locking groove and a locking hole;
[0009] The lock groove is located on one side of the outer wall of one pressure rod and extends to the outer wall of the other pressure rod. The lock hole is located on one side of the outer wall of the support platform, and its center coincides with the center of the lock groove. The inner diameter of the lock hole is the same as the inner diameter of the lock groove.
[0010] As a further improvement of this utility model: the film loading assembly further includes a first spring, a ball notch, and a sliding hole;
[0011] The first spring is disposed inside the T-shaped groove. One end of the outer wall of the first spring is fixedly connected to the outer wall of the T-shaped slide rod. One end of the inner wall of the T-shaped groove is provided with a circular hole. The diameter of the inner wall of the circular hole is larger than the outer diameter of the first spring, which is used for the extension and retraction of the first spring.
[0012] The ball notch is provided in multiple ways, and the multiple ball notches are arranged linearly on the top of the outer wall of the T-shaped slide bar. The inner diameter of the ball notch is the same as the outer diameter of the steel ball, and the depth of the ball notch is less than the inner radius of the ball notch.
[0013] Multiple sliding holes are provided, and the multiple sliding holes are arranged linearly on the outer wall of the sleeve and extend to the inner wall of the sleeve. The top of the inner wall of the sliding hole has an arc-shaped structure, and the height of the arc-shaped structure is the same as the depth of the ball notch. The diameter of the top of the inner wall of the sliding hole is smaller than the diameter of the bottom of the inner wall of the sliding hole, and the diameter of the bottom of the inner wall of the sliding hole is the same as the diameter of the outer wall of the steel ball.
[0014] As a further improvement of this utility model, the film loading assembly also includes a baffle.
[0015] The baffle is fixedly connected to the outer wall of the T-shaped column. The outer wall of the baffle has a circular hole that completely penetrates the baffle. The inner diameter of the circular hole is the same as the outer diameter of the T-shaped column. The circular hole fits into the T-shaped groove in a square groove. A trapezoidal protrusion is provided at the top end of the outer wall of the T-shaped slide rod. The width of the trapezoidal protrusion is the same as the width of the inner wall of the square groove.
[0016] As a further embodiment of this utility model: the locking assembly includes a square rod, a locking plate, a T-shaped rod, a second spring, a sliding plate, a pressure rod, and a third spring;
[0017] Two square rods are provided, symmetrically arranged and fixedly connected to the outer wall of the support platform and the outer wall of the baffle. The locking plate is slidably connected to the outer wall of the two square rods. The T-shaped rod is fixedly connected to the top of the outer wall of the locking plate. The second spring is sleeved on the outer wall of the T-shaped rod, and one end is fixedly connected to the top of the outer wall of the locking plate. One end of the sliding plate is sleeved on the outer wall of the T-shaped rod and fixedly connected to the outer wall of the other end of the second spring. The outer wall of the other end of the sliding plate is provided with a straight groove. Two pressure rods are provided, symmetrically arranged and fixedly connected to the outer wall of the rotating cylinder and slidably connected to the outer wall of the support platform. An arc-shaped column is fixedly connected between the outer walls of the two pressure rods at the ends away from the rotating cylinder. One end of the third spring is fixedly connected to the bottom of the outer wall of one pressure rod, and the other end is fixedly connected to the top of the outer wall of the sliding plate. The third spring is sleeved on the outer wall of the arc-shaped column.
[0018] As a further embodiment of this utility model: the locking assembly further includes a top plate, a bottom plate, and a fourth spring;
[0019] The top plate is fixedly connected to the outer wall of the rotating cylinder, and the outer wall of the top plate is in contact with the outer wall of the support platform. The bottom plate is fixedly connected to the outer wall of the support platform and is located diagonally below the rotating cylinder. One end of the fourth spring is fixedly connected to the bottom of the outer wall of the top plate, and the other end is fixedly connected to the top of the outer wall of the bottom plate.
[0020] As a further improvement of this utility model, the locking assembly also includes a lock cylinder;
[0021] The lock cylinder is disposed on the outer wall of a pressure rod and slidably connected to the inner wall of the lock groove. The diameter of the outer wall of one end of the lock cylinder is the same as the diameter of the inner wall of the lock hole. The outer wall of the lock cylinder is provided with a C-shaped protrusion, which is disposed between the two pressure rods.
[0022] Compared with the prior art, the beneficial effects of this utility model are:
[0023] By incorporating a film loading assembly and a locking assembly, when the membrane roll needs to be replaced, simply unlocking the film loading assembly via the locking assembly allows the T-shaped slide bar to slide. This movement causes the steel ball to fall, reducing the support force on the inner wall of the membrane roll and making it easy to remove and replace. After replacement, simply sliding the T-shaped slide bar in the opposite direction moves the steel ball upward, protruding from the outer wall of the sleeve, increasing the support force on the inner wall of the membrane roll and securing it to the sleeve. Then, the locking assembly is used to lock the T-shaped slide bar, completing the rapid replacement of the membrane roll. This replaces the traditional air shaft, saving energy and offering greater convenience. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of this utility model;
[0025] Figure 2This is a side view of the locking component of this utility model;
[0026] Figure 3 This is a side view of the support platform of this utility model;
[0027] Figure 4 This is a disassembly diagram of the film loading assembly of this utility model;
[0028] Figure 5 This is a schematic diagram of the vertical cross-section of the T-shaped column and the sleeve of this utility model;
[0029] Figure 6 For the present utility model Figure 4 Enlarged view of point A in the middle;
[0030] Figure 7 For the present utility model Figure 5 Enlarged diagram of point B in the middle.
[0031] In the diagram: 1. Stretch film packaging machine; 101. Machine body; 102. Support platform; 103. Rotary shaft; 104. Rotary drum; 105. Pressure bar; 106. Locking groove; 107. Locking hole; 2. Film loading assembly; 201. T-shaped column; 202. T-shaped groove; 203. First spring; 204. T-shaped slide bar; 2041. Ball notch groove; 205. Sleeve; 2051. Sliding hole; 206. Steel ball; 207. Baffle; 3. Locking assembly; 301. Square bar; 302. Locking plate; 303. T-shaped bar; 304. Second spring; 305. Slide plate; 306. Pressure bar; 307. Third spring; 308. Top plate; 309. Bottom plate; 310. Fourth spring; 311. Lock cylinder. Detailed Implementation
[0032] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Please see Figures 1-7In this embodiment of the present invention, an automatic food packaging machine includes a stretch film packaging machine 1. The stretch film packaging machine 1 includes a machine body 101, a support platform 102, a rotating shaft 103, a rotating cylinder 104, and a pressure rod 105. Two support platforms 102 are provided, and the two support platforms 102 are respectively fixedly connected to the top of the outer wall of the machine body 101 and one end of the outer wall. The rotating shaft 103 is fixedly connected to one side of the outer wall of the support platform 102. The rotating cylinder 104 is sleeved on the outer wall of the rotating shaft 103 and rotatably connected to the outer wall of the support platform 102. Two pressure rods 105 are provided, and the two pressure rods 105 are symmetrically arranged and fixedly connected to both sides of the outer wall of the rotating cylinder 104. The outer wall of one pressure rod 105 is in contact with the outer wall of the support platform 102. A film loading assembly 2 is provided on one side of the outer wall of the support platform 102. The film loading assembly 2 includes a T-shaped column 201, a T-shaped groove 202, a T-shaped slide bar 204, a sleeve 205, and a steel ball 206.
[0034] T-shaped column 201 is fixedly connected to the outer wall of support platform 102 and located diagonally below rotating shaft 103. T-shaped groove 202 is provided at one end of the outer wall of T-shaped column 201 and extends inward. T-shaped slide rod 204 is slidably connected to the inner wall of T-shaped groove 202. Sleeve 205 is sleeved on the outer wall of T-shaped column 201. Multiple steel balls 206 are provided and arranged linearly on the inner wall of sleeve 205.
[0035] A locking assembly 3 is provided on one side of the outer wall of the support platform 102 to lock the T-shaped slide bar 204.
[0036] In this embodiment, it should be noted that: one end of the pressure rod 105 is fixedly connected to a round shaft, and two limiting wheels for locking the stretch film are rotatably connected to both ends of the outer circumference of the rod. A fitting wheel is provided between the two limiting wheels to maintain the distance between the limiting wheel and the stretch film.
[0037] When the membrane roll needs to be replaced, first rotate the pressure rod 105 to release the locking state of the locking assembly 3 on the membrane assembly 2. At this time, the T-shaped slide rod 204 slides, causing the steel ball 206 to fall and be hidden inside the sleeve 205. This reduces the support force on the inner wall of the membrane roll, allowing it to be easily removed for replacement. After replacement, simply rotate the pressure rod 105 in the opposite direction to push the T-shaped slide rod 204 in the opposite direction, causing the steel ball 206 to move upwards and protrude from the outer wall of the sleeve 205 to contact the inner wall of the membrane roll. This increases the support force on the inner wall of the membrane roll, making it easier to remove and replace. The film roll is fixed to the sleeve 205, and the locking component 3 locks the T-shaped slide bar 204, preventing the T-shaped slide bar 204 from sliding easily. This ensures that the connection between the sleeve 205 and the film roll will not loosen. When the sleeve 205 rotates, it drives the steel ball 206 to rotate synchronously, thus ensuring that the rotation of the film roll is not affected by the film loading component 2. The film loading component 2 and the locking component 3, located at the other end of the machine body 101, provide a foundation for the installation of the lower film of the stretch film packaging machine 1, thereby replacing the method of using an air shaft to install the film roll, saving energy. The operation of the locking component 3 is linked with the pressure rod 105, making the operation simpler and more convenient.
[0038] Please refer to this carefully. Figure 3 , Figure 4 The stretch film packaging machine 1 is also equipped with a locking groove 106 and a locking hole 107;
[0039] The lock groove 106 is located on one side of the outer wall of one pressure rod 105 and extends to the outer wall of another pressure rod 105. The lock hole 107 is located on one side of the outer wall of the support platform 102, and its center coincides with the center of the lock groove 106. The inner diameter of the lock hole 107 is the same as the inner diameter of the lock groove 106.
[0040] In this embodiment: by setting the locking groove 106 and the locking hole 107, a basis is provided for the locking assembly 3 to lock the pressure rod 105, so that the staff does not need to hold the pressure rod 105 all the time, thus making it convenient for the staff to change the film roll, and no multiple people are required to cooperate in the operation.
[0041] Please refer to this carefully. Figure 4 , Figure 6 , Figure 7 The film loading assembly 2 also includes a first spring 203, a ball notch 2041, and a sliding hole 2051;
[0042] The first spring 203 is disposed inside the T-shaped groove 202. One end of the outer wall of the first spring 203 is fixedly connected to the outer wall of the T-shaped slide bar 204. One end of the inner wall of the T-shaped groove 202 is provided with a circular hole. The diameter of the inner wall of the circular hole is larger than the outer diameter of the first spring 203, which is used for the telescopic storage of the first spring 203.
[0043] Multiple ball notches 2041 are provided, and the multiple ball notches 2041 are arranged linearly on the top of the outer wall of the T-shaped slide bar 204. The inner diameter of the ball notch 2041 is the same as the outer diameter of the steel ball 206, and the depth of the ball notch 2041 is less than the inner radius of the ball notch 2041.
[0044] Multiple sliding holes 2051 are provided, and the multiple sliding holes 2051 are arranged linearly on the outer wall of the sleeve 205 and extend to the inner wall of the sleeve 205. The top of the inner wall of the sliding hole 2051 has an arc-shaped structure, and the height of the arc-shaped structure is the same as the depth of the ball notch 2041. The diameter of the top of the inner wall of the sliding hole 2051 is smaller than the diameter of the bottom of the inner wall of the sliding hole 2051. The diameter of the bottom of the inner wall of the sliding hole 2051 is the same as the diameter of the outer wall of the steel ball 206. The height of the inner wall of the sliding hole 2051 is smaller than the diameter of the steel ball 206.
[0045] In this embodiment: by setting a first spring 203, the T-shaped slide bar 204 will squeeze the first spring 203 when it slides, thereby pushing the T-shaped slide bar 204 to slide in the opposite direction by releasing the first spring 203;
[0046] By setting the ball notch 2041 and the sliding hole 2051, the steel ball 206 can move up and down, thereby realizing the locking and unlocking operation of the membrane roll. At the same time, the arc-shaped structure at the top of the sliding hole 2051 prevents the steel ball 206 from falling off the sleeve 205, thus ensuring the stable operation of the membrane assembly 2.
[0047] Please refer to this carefully. Figure 1 , Figure 2 , Figure 4 , Figure 5 The film loading assembly 2 also includes a baffle 207;
[0048] The baffle 207 is fixedly connected to the outer wall of the T-shaped column 201. The outer wall of the baffle 207 is provided with a circular hole that completely penetrates the baffle 207. The inner diameter of the circular hole is the same as the outer diameter of the T-shaped column 201. The circular hole and the T-shaped groove 202 are fitted in a square groove. One end of the top of the outer wall of the T-shaped slide bar 204 is provided with a trapezoidal protrusion. The width of the trapezoidal protrusion is the same as the width of the inner wall of the square groove.
[0049] In this embodiment: by setting baffle 207, the outer wall of the film roll will not adhere to the locking component 3 and affect the normal operation of the locking component 3, while providing a basis for restricting the running direction of the locking component 3. The trapezoidal protrusion set on the top of the outer wall of the T-shaped slide bar 204 provides a basis for the locking component 3 to push the T-shaped slide bar 204 to slide through the inclined surface of the trapezoidal protrusion.
[0050] Please refer to this carefully. Figures 1-7The locking assembly 3 includes a square rod 301, a locking plate 302, a T-shaped rod 303, a second spring 304, a sliding plate 305, a pressure bar 306, and a third spring 307.
[0051] Two square rods 301 are provided, symmetrically arranged and fixedly connected to the outer wall of the support platform 102, and also fixedly connected to the outer wall of the baffle 207. The locking plate 302 is slidably connected to the adjacent outer walls of the two square rods 301. The T-shaped rod 303 is fixedly connected to the top of the outer wall of the locking plate 302. The second spring 304 is sleeved on the outer wall of the T-shaped rod 303, and one end is fixedly connected to the top of the outer wall of the locking plate 302. One end of the sliding plate 305 is sleeved on the outer wall of the T-shaped rod 303, and fixed to the other end of the outer wall of the second spring 304. The other end of the slide plate 305 has a straight groove on its outer wall. There are two pressure rods 306. The two pressure rods 306 are symmetrically arranged and fixedly connected to the outer wall of the rotating cylinder 104, and slidably connected to the outer wall of the support platform 102. An arc-shaped column is fixedly connected between the adjacent outer walls of the two pressure rods 306 away from the rotating cylinder 104. One end of the third spring 307 is fixedly connected to the bottom of the outer wall of one pressure rod 306, and the other end is fixedly connected to the top of the outer wall of the slide plate 305. The third spring 307 is sleeved on the outer wall of the arc-shaped column.
[0052] In this embodiment: by setting up a square rod 301, a locking plate 302, a T-shaped rod 303, a second spring 304, a sliding plate 305, a pressure rod 306, and a third spring 307, when the pressure rod 105 rotates counterclockwise, it will cause the upper pressure rod 306 to squeeze the third spring 307 through the rotating cylinder 104. The third spring 307 squeezes the sliding plate 305, and the sliding plate 305 squeezes the second spring 304, thereby pushing the locking plate 302 to slide downward under the restriction of the square rod 301. At the same time, the third spring 307 moves in an arc shape. The column maintains its direction of movement. The arc-shaped column is slidably connected to the slide plate 305 through the straight groove at one end of the slide plate 305, so that the arc-shaped column will not affect the sliding of the slide plate 305. Thus, by squeezing the inclined surface of the trapezoidal protrusion on the top of the outer wall of the T-shaped slide bar 204, the T-shaped slide bar 204 slides, completing the locking of the film loading assembly 2. When the pressure rod 105 rotates clockwise, the pressure plate 306 located below drives the slide plate 305 upward, causing the locking plate 302 to slide upward and disengage from the T-shaped slide bar 204, thereby unlocking the film loading assembly 2.
[0053] Please refer to this carefully. Figures 1-4 The locking assembly 3 also includes a top plate 308, a bottom plate 309, and a fourth spring 310;
[0054] The top plate 308 is fixedly connected to the outer wall of the rotating cylinder 104. The outer wall of the top plate 308 is in contact with the outer wall of the support platform 102. The bottom plate 309 is fixedly connected to the outer wall of the support platform 102 and is located diagonally below the rotating cylinder 104. One end of the fourth spring 310 is fixedly connected to the bottom of the outer wall of the top plate 308, and the other end is fixedly connected to the top of the outer wall of the bottom plate 309.
[0055] In this embodiment, it should be noted that the elastic force of the fourth spring 310 is much greater than the sum of the elastic forces of the second spring 304 and the third spring 307, thereby realizing the automatic locking function of the locking component 3.
[0056] By setting up a top plate 308, a bottom plate 309, and a fourth spring 310, the fourth spring 310 can push the top plate 308 to move, and the movement of the top plate 308 will drive the rotating drum 104 to rotate. This allows the rotating drum 104 to rotate counterclockwise without the need for operator intervention, making the replacement of the membrane roll more simple and convenient.
[0057] Please refer to this carefully. Figure 1 , Figure 2 , Figure 4 The locking assembly 3 also includes a lock cylinder 311;
[0058] The lock cylinder 311 is located on the outer wall of a pressure rod 105 and is slidably connected to the inner wall of the lock groove 106. The diameter of the outer wall of one end of the lock cylinder 311 is the same as the diameter of the inner wall of the lock hole 107. The outer wall of the lock cylinder 311 is provided with a C-shaped protrusion, which is located between the two pressure rods 105.
[0059] In this embodiment: by setting a lock core 311, the rotation of the pressure rod 105 is locked in cooperation with the lock hole 107, thereby restricting the operation of the locking component 3 and enabling the locking component 3 to be stationary. This eliminates the need for the operator to continuously lift the pressure rod 105, making it easier for the operator to change the film roll later.
[0060] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An automatic food packaging machine, comprising a stretch film packaging machine (1), wherein the stretch film packaging machine (1) comprises a machine body (101), a support platform (102), a rotating shaft (103), a rotating cylinder (104), and pressure rods (105), wherein two support platforms (102) are provided, the two support platforms (102) are respectively fixedly connected to the top of the outer wall of the machine body (101) and one end of the outer wall, the rotating shaft (103) is fixedly connected to one side of the outer wall of the support platform (102), the rotating cylinder (104) is sleeved on the outer wall of the rotating shaft (103) and rotatably connected to the outer wall of the support platform (102), and two pressure rods (105) are provided, the two pressure rods (105) are symmetrically arranged and fixedly connected to both sides of the outer wall of the rotating cylinder (104), and the outer wall of one pressure rod (105) is in contact with the outer wall of the support platform (102), characterized in that, A film loading assembly (2) is provided on one side of the outer wall of the support platform (102). The film loading assembly (2) includes a T-shaped column (201), a T-shaped groove (202), a T-shaped slide bar (204), a sleeve (205), and a steel ball (206). The T-shaped column (201) is fixedly connected to the outer wall of the support platform (102) and located obliquely below the rotating shaft (103). The T-shaped groove (202) is provided at one end of the outer wall of the T-shaped column (201) and extends inward. The T-shaped slide rod (204) is slidably connected to the inner wall of the T-shaped groove (202). The sleeve (205) is sleeved on the outer wall of the T-shaped column (201). Multiple steel balls (206) are provided, and the multiple steel balls (206) are arranged linearly on the inner wall of the sleeve (205). A locking assembly (3) is provided on one side of the outer wall of the support platform (102) for locking the T-shaped slide bar (204).
2. The automatic food packaging machine according to claim 1, characterized in that, The stretch film packaging machine (1) is also provided with a locking groove (106) and a locking hole (107); The lock groove (106) is located on one side of the outer wall of one pressure rod (105) and extends to the outer wall of another pressure rod (105). The lock hole (107) is located on one side of the outer wall of the support platform (102) and its center coincides with the center of the lock groove (106). The inner diameter of the lock hole (107) is the same as the inner diameter of the lock groove (106).
3. The automatic food packaging machine according to claim 1, characterized in that, The film loading assembly (2) also includes a first spring (203), a ball notch (2041), and a sliding hole (2051); The first spring (203) is disposed inside the T-shaped groove (202). One end of the outer wall of the first spring (203) is fixedly connected to the outer wall of the T-shaped slide rod (204). One end of the inner wall of the T-shaped groove (202) is provided with a circular hole. The diameter of the inner wall of the circular hole is larger than the outer diameter of the first spring (203), which is used for the telescopic storage of the first spring (203). Multiple ball notches (2041) are provided, and the multiple ball notches (2041) are arranged linearly on the top of the outer wall of the T-shaped slide bar (204). The inner diameter of the ball notch (2041) is the same as the outer diameter of the steel ball (206), and the depth of the ball notch (2041) is smaller than the inner radius of the ball notch (2041). Multiple sliding holes (2051) are provided, and the multiple sliding holes (2051) are arranged linearly on the outer wall of the sleeve (205) and extend to the inner wall of the sleeve (205). The top of the inner wall of the sliding hole (2051) has an arc-shaped structure, and the height of the arc-shaped structure is the same as the depth of the ball notch (2041). The diameter of the top of the inner wall of the sliding hole (2051) is smaller than the diameter of the bottom of the inner wall of the sliding hole (2051). The diameter of the bottom of the inner wall of the sliding hole (2051) is the same as the diameter of the outer wall of the steel ball (206). The height of the inner wall of the sliding hole (2051) is smaller than the diameter of the steel ball (206).
4. The automatic food packaging machine according to claim 1, characterized in that, The film loading assembly (2) also includes a baffle (207); The baffle (207) is fixedly connected to the outer wall of the T-shaped column (201). The outer wall of the baffle (207) is provided with a circular hole that completely penetrates the baffle (207). The inner diameter of the circular hole is the same as the outer diameter of the T-shaped column (201). The circular hole and the T-shaped groove (202) are fitted in a square groove. The top end of the outer wall of the T-shaped slide rod (204) is provided with a trapezoidal protrusion. The width of the trapezoidal protrusion is the same as the width of the inner wall of the square groove.
5. The automatic food packaging machine according to claim 1, characterized in that, The locking assembly (3) includes a square rod (301), a locking plate (302), a T-shaped rod (303), a second spring (304), a sliding plate (305), a pressure bar (306), and a third spring (307); Two square rods (301) are provided, and the two square rods (301) are symmetrically arranged and fixedly connected to the outer wall of the support platform (102) and fixedly connected to the outer wall of the baffle (207). The locking plate (302) is slidably connected to the adjacent outer walls of the two square rods (301). The T-shaped rod (303) is fixedly connected to the top of the outer wall of the locking plate (302). The second spring (304) is sleeved on the outer wall of the T-shaped rod (303) and one end is fixedly connected to the top of the outer wall of the locking plate (302). One end of the sliding plate (305) is sleeved on the outer wall of the T-shaped rod (303) and the other end is fixedly connected to the outer wall of the second spring (304). The slide plate (305) is fixedly connected to the wall. The other end of the outer wall of the slide plate (305) is provided with a straight groove. There are two pressure rods (306). The two pressure rods (306) are symmetrically arranged and fixedly connected to the outer wall of the rotating cylinder (104) and slidably connected to the outer wall of the support platform (102). An arc-shaped column is fixedly connected between the adjacent outer walls of the two pressure rods (306) away from the rotating cylinder (104). One end of the third spring (307) is fixedly connected to the bottom of the outer wall of one pressure rod (306), and the other end is fixedly connected to the top of the outer wall of the slide plate (305). The third spring (307) is sleeved on the outer wall of the arc-shaped column.
6. The automatic food packaging machine according to claim 1, characterized in that, The locking assembly (3) also includes a top plate (308), a bottom plate (309), and a fourth spring (310); The top plate (308) is fixedly connected to the outer wall of the rotating cylinder (104), and the outer wall of the top plate (308) is in contact with the outer wall of the support platform (102). The bottom plate (309) is fixedly connected to the outer wall of the support platform (102) and is located diagonally below the rotating cylinder (104). One end of the fourth spring (310) is fixedly connected to the bottom of the outer wall of the top plate (308), and the other end is fixedly connected to the top of the outer wall of the bottom plate (309).
7. The automatic food packaging machine according to claim 2, characterized in that, The locking assembly (3) also includes a lock cylinder (311); The lock cylinder (311) is disposed on the outer wall of a pressure rod (105) and slidably connected to the inner wall of the lock groove (106). The diameter of the outer wall of one end of the lock cylinder (311) is the same as the diameter of the inner wall of the lock hole (107). The outer wall of the lock cylinder (311) is provided with a C-shaped protrusion, which is disposed between the two pressure rods (105).