A special-shaped paper lunch box expansion and compression molding machine

Abstract

The utility model discloses a lunch box expansion and pressing forming machine, comprising a mold table, wherein a plurality of mold placement blocks are fixedly connected to the top of the mold table, the inner walls of the plurality of mold placement blocks are fixedly connected to the mold boxes, a expander protective shell is fixedly connected to the rear side of the mold table, the inner wall of the expander protective shell is movably connected to the expander, and by providing the mold placement blocks and the mold box, firstly, a motor on the inner wall of the mold table base is started to drive the mold placement block for placing the mold box to rotate to the bottom of the expander protective shell, when it is necessary to replace the special-shaped paper lunch box, a second motor is started to drive a limit plate to push, and the limit on the mold placement box is released, and then the mold placement box for placing different types of special-shaped paper lunch boxes that need to be expanded and pressed is replaced, and the second motor is restarted to clamp it, so that different special-shaped paper lunch boxes can be placed on the inner wall of the matching mold placement box for expansion and pressing through the expander protective shell.

Description

Technical Field

[0001] The utility model relates to the technical field of paper lunch boxes, in particular to a special-shaped paper lunch box expansion and compression molding machine. Background Art

[0002] Paper lunch boxes refer to lunch boxes made of paper materials, which are generally disposable paper lunch boxes. They are easy to use and low in cost, and have been widely used in the catering industry. Because they are made of paper materials, they can be recycled and disposed of by landfill or burning without causing serious environmental pollution, and have high environmental value.

[0003] According to the patent document: CN2451326Y, a paper lunch box forming machine is disclosed, which belongs to the field of mechanical equipment, especially mechanical equipment for manufacturing paper lunch boxes, paper dinner plates, paper dinner bowls and paper cups and other paper products. It is mainly composed of an upper body and a lower body, wherein the upper body is mainly connected by a cylinder body, a cylinder piston, a cylinder connecting plate, a punch, a cylinder fixing plate, etc., and the lower body is mainly connected by a spring plate, a concave die, a connecting rod, a bottom plate, an electric heating rod, etc. The utility model has a reasonable structural design, strong practicality, simple and convenient operation, safety and reliability, and is an ideal environmental protection equipment for people to choose.

[0004] Special-shaped paper lunch boxes are generally formed by expansion and compression molding machines. However, most of the existing expansion and compression molding machines can only expand and compress paper lunch boxes of one mold. Moreover, most of the expansion and compression molding machines process a single type of product. If two sizes and different styles and specifications of products are to be produced, a second machine is required, which requires a large capital investment and is not suitable for large-scale production. Utility Model Content

[0005] The purpose of the present invention is to provide a special-shaped paper lunch box expansion and compression molding machine to solve the problem that most of the expansion and compression molding machines mentioned in the above background technology can only expand and compress paper lunch boxes of one mold. However, most of the expansion and compression molding machines process a single type of product. If two sizes, styles and specifications of products are to be produced, a second machine is required, which requires a large capital investment and is not suitable for large-scale production.

[0006] To achieve the above object, the utility model provides the following technical solutions: a special-shaped paper lunch box expansion and compression molding machine, comprising a mold table, the top of the mold table is fixedly connected to a plurality of mold placement blocks, the inner walls of the plurality of mold placement blocks are fixedly connected to a mold box, the rear side of the mold table is fixedly connected to an expansion and compression machine protection shell, and the inner wall of the expansion and compression machine protection shell is movably connected to an expansion and compression machine;

[0007] The mold table includes a mold table base, a motor placement groove is opened at the bottom of the mold table base, a motor is fixedly connected to the inner wall of the motor placement groove, a gear is fixedly connected to the output end of the motor, a bottom shaft is fixedly connected to the top of the mold table base, an internal gear is rotatably connected to the top of the bottom shaft, and the inner wall of the internal gear meshes with the outer wall of the gear.

[0008] Preferably, the mold placement block includes a mold placement block shell, the bottom of the mold placement block shell is fixedly connected to the top of the internal gear, the bottom of the inner wall of the mold placement block shell is fixedly connected to a motor placement plate, the bottom of the motor placement plate is fixedly connected to a motor placement block, the inner wall of the motor placement block is fixedly connected to a second motor, the output end of the second motor passes through the top of the motor placement plate and is fixedly connected to a second bidirectional screw cone tooth, the top of the second bidirectional screw cone tooth engages with the bidirectional screw cone tooth, the inner wall of the bidirectional screw cone tooth is fixedly connected to a bidirectional screw, and the left and right ends of the bidirectional screw are respectively movably connected to the left and right sides of the inner wall of the mold placement block shell.

[0009] Preferably, placement block slots are provided on the front and back sides of the left and right sides of the inner wall of the mold placement block shell, and the left and right outer walls of the two-way screw are threadedly connected with rotating rod transmission blocks, and the front and back sides of the two rotating rod transmission blocks are rotatably connected with rotating rods, and the two groups of rotating rods are rotatably connected with pull plates on one side away from the rotating rod transmission blocks, and the left and right sides of the two pull plates are slidably connected to the inner wall of the placement block slot, and the tops of the two pull plates are fixedly connected with limiting plates.

[0010] Preferably, the mold box comprises a mold box bottom block, the outer wall of the mold box bottom block is movably connected to the inner wall of the mold placement block shell, and the top of the mold box bottom block is fixedly connected to the mold placement box.

[0011] Preferably, the expander protective shell includes a vertical plate, the front side of the vertical plate is fixedly connected to the protective shell, the upper inner wall of the protective shell is fixedly connected to a partition, the top of the partition is fixedly connected to a dual-axis motor placement block, the inner wall of the dual-axis motor placement block is fixedly connected to a dual-axis motor, the left and right output ends of the dual-axis motor extend to the outer wall of the dual-axis motor placement block respectively and are fixedly connected with conical teeth, the two conical teeth are engaged with the second conical teeth on one side away from the dual-axis motor placement block, the inner walls of the two second conical teeth are fixedly connected with screws, the bottoms of the two screws pass through the bottom of the partition and are movably connected to the bottom of the inner wall of the vertical plate, and the middle part of the bottom of the vertical plate is a hollow structure.

[0012] Preferably, the expander includes an expander housing, and transmission blocks are fixedly connected to the left and right sides of the expander housing respectively, and the inner walls of the two transmission blocks are threadedly connected to the outer wall of the screw rod, and a third motor placement block is fixedly connected to the top of the inner wall of the expander housing, and a third motor is fixedly connected to the inner wall of the third motor placement block, and a third conical tooth is fixedly connected to the output end of the third motor, and the third conical tooth is away from the right side and meshes with the fourth conical tooth, and a second screw rod is fixedly connected to the inner wall of the fourth conical tooth, and the bottom of the second screw rod is movably connected to the bottom of the inner wall of the expander housing.

[0013] Preferably, the outer wall of the second screw is threadedly connected to an expander transmission block, the left side of the expander transmission block is fixedly connected to an expander, the left side of the expander is fixedly connected to an expander slider, the left side of the expander slider is slidably connected to the left side of the inner wall of the expander housing, and the bottom left side of the expander housing is hollowed out.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. By setting a mold placement block and a mold box, first start the motor on the inner wall of the mold table base to drive the mold placement block for placing the mold box to rotate to the bottom of the expander protective shell. When it is necessary to replace the special-shaped paper lunch box, start the second motor to drive the limit plate to push, release the limit on the mold placement box, and then replace the mold placement box for placing different types of special-shaped paper lunch boxes that need to be expanded and pressed, restart the second motor to clamp it, and then different special-shaped paper lunch boxes can be placed on the inner wall of the matching mold placement box through the expander protective shell for expansion and pressing;

[0016] 2. By providing an expander protective shell and an expander, when expansion is required, start the double-axis motor to drive the expander shell to move downward out of the inner wall of the vertical plate, start the third motor to make the expander transmission block drive the expander to move downward and move the expander out of the outer wall of the expander shell for expansion; when expansion is not required, the expander and the expander shell are respectively transmitted to the expander shell and the inner wall of the vertical plate by the third motor and the double-axis motor to prevent paper scraps and dust in the factory from entering the expander and causing the expander to be blocked and affect the expansion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of the main body of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the mold table of the utility model;

[0020] Figure 4It is a schematic diagram of the three-dimensional structure of the mold placement block of the utility model;

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the mold box of the utility model;

[0022] Figure 6 This is a schematic diagram of a three-dimensional cross-sectional structure of a protective shell of a expander of the utility model;

[0023] Figure 7 It is a three-dimensional cross-sectional structural schematic diagram of the expander of the utility model.

[0024] In the figure: 1. mold table; 11. mold table base; 12. motor placement groove; 13. motor; 14. gear; 15. bottom shaft; 16. internal gear; 2. mold placement block; 21. mold placement block shell; 22. limit plate; 23. motor placement plate; 24. motor placement block; 25. second motor; 26. bidirectional screw taper gear; 27. second bidirectional screw taper gear; 28. bidirectional screw; 29. ​​rotating rod transmission block; 210. rotating rod; 211. placement block slide; 212. pull plate; 3. mold box; 31 , mold box bottom block; 32, mold placement box; 4, expander protective shell; 41, vertical plate; 42, protective shell; 43, double-axis motor placement block; 44, double-axis motor; 45, conical gear; 46, second conical gear; 47, partition; 48, screw; 5, expander; 51, expander shell; 52, transmission block; 53, third motor placement block; 54, third motor; 55, third conical gear; 56, fourth conical gear; 57, second screw; 58, expander transmission block; 59, expander; 511, expander slider. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7The utility model provides a technical solution: a special-shaped paper lunch box expansion and compression molding machine, including a mold table 1, a plurality of mold placement blocks 2 are fixedly connected to the top of the mold table 1, the inner walls of the plurality of mold placement blocks 2 are fixedly connected to mold boxes 3, a expander protection shell 4 is fixedly connected to the rear side of the mold table 1, and an expander 5 is movably connected to the inner wall of the expander protection shell 4. When it is necessary to expand and compress the special-shaped paper lunch boxes, firstly, a plurality of special-shaped paper lunch boxes are placed on the inner wall of the mold box 3 on the top of the plurality of mold placement blocks 2, and then the inner wall transmission mold placement blocks 2 of the mold table 1 are started to drive the plurality of mold boxes 3 on the top to rotate, and one of them The mold box 3 rotates to the bottom of the expander protective shell 4, and the expander 5 on the inner wall of the expander protective shell 4 is started to move downward out of the inner wall of the expander protective shell 4 to expand and press the special-shaped paper lunch box on the top of the mold box 3. When the expander 5 is not needed, the expander 5 is transmitted to the inner wall of the expander protective shell 4 to prevent dust from entering the expander 5 and causing damage to the expander 5 and affecting the expansion and pressing; when different special-shaped paper lunch boxes need to be expanded and pressed, the mold box 3 is removed from the top of the mold placement block 2, and replaced with a mold box 3 for placing different types of special-shaped paper lunch boxes, and then the inner wall of the mold table 1 is continued to be started to work.

[0027] See also Figure 2 , Figure 3 , Figure 4 and Figure 5In order to improve the chain processing efficiency, the mold table 1 includes a mold table base 11, a motor placement groove 12 is opened at the bottom of the mold table base 11, a motor 13 is fixedly connected to the inner wall of the motor placement groove 12, and a gear 14 is fixedly connected to the output end of the motor 13. A bottom shaft 15 is fixedly connected to the top of the mold table base 11, and an internal gear 16 is rotatably connected to the top of the bottom shaft 15. The inner wall of the internal gear 16 meshes with the outer wall of the gear 14. The mold placement block 2 includes a mold placement block shell 21, the bottom of the mold placement block shell 21 is fixedly connected to the top of the internal gear 16, the bottom of the inner wall of the mold placement block shell 21 is fixedly connected to the motor placement plate 23, the bottom of the motor placement plate 23 is fixedly connected to the motor placement block 24, and the inner wall of the motor placement block 24 A second motor 25 is fixedly connected to the wall, and the output end of the second motor 25 passes through the top of the motor placement plate 23 and is fixedly connected to a second bidirectional screw cone tooth 27. The top of the second bidirectional screw cone tooth 27 engages with the bidirectional screw cone tooth 26. A bidirectional screw 28 is fixedly connected to the inner wall of the bidirectional screw cone tooth 26. The left and right ends of the bidirectional screw 28 are respectively movably connected to the left and right sides of the inner wall of the mold placement block shell 21. The front and rear sides of the left and right sides of the inner wall of the mold placement block shell 21 are both provided with placement block slide grooves 211. The left and right outer walls of the bidirectional screw 28 are both threadedly connected with rotating rod transmission blocks 29. The front and rear sides of the two rotating rod transmission blocks 29 are both rotatably connected with rotating rods 210. The two groups of rotating rods 210 are away from the rotating rod transmission blocks 2 9 is rotatably connected with a pull plate 212 on one side, and the left and right sides of the two pull plates 212 are slidably connected to the inner wall of the placement block slide 211, and the tops of the two pull plates 212 are fixedly connected to the limit plate 22. The mold box 3 includes a mold box bottom block 31, and the outer wall of the mold box bottom block 31 is movably connected to the inner wall of the mold placement block shell 21, and the top of the mold box bottom block 31 is fixedly connected with the mold placement box 32. When expansion and pressing is required, the motor 13 on the inner wall of the mold table base 11 is first started to rotate the transmission gear 14, so that the internal gear 16 on the top of the transmission bottom shaft 15 rotates, and the rotation of the internal gear 16 drives the mold placement block 2 on which the mold box 3 is placed to rotate to the bottom of the expansion and pressing machine protective shell 4, and then the inner wall of the expansion and pressing machine protective shell 4 is started to press the mold box bottom block 3 1 is used to expand and press the special-shaped paper lunch box placed on the inner wall of the mold placing block 21. When the special-shaped paper lunch box needs to be replaced, the second motor 25 is started to drive the bidirectional screw 28 to rotate, thereby driving the rotating rod transmission block 29 to move to the opposite side to push the pull plate 212 to drive the limit plate 22 to push, and the limit on the mold placing box 32 can be released to remove the mold box bottom block 31 from the inner wall of the mold placing block shell 21. After that, the mold placing box 32 of different types of special-shaped paper lunch boxes that need to be expanded and pressed is replaced, and the second motor 25 is restarted to drive the two rotating rod transmission blocks 29 to move to the opposite side to pull the limit plate 22 to clamp the mold box bottom block 31 of another type, so that different special-shaped paper lunch boxes can be placed on the inner wall of the matching mold placing box 32 for expansion and pressing through the expander protective shell 4.

[0028] See also Figure 6 and Figure 7 The expander protective shell 4 includes a vertical plate 41, a protective shell 42 is fixedly connected to the front side of the vertical plate 41, a partition 47 is fixedly connected to the upper inner wall of the protective shell 42, a dual-axis motor placement block 43 is fixedly connected to the top of the partition 47, a dual-axis motor 44 is fixedly connected to the inner wall of the dual-axis motor placement block 43, and the left and right output ends of the dual-axis motor 44 extend to the outer wall of the dual-axis motor placement block 43 and are fixedly connected with conical teeth 45, and the two conical teeth 45 are meshed with second conical teeth 46 on one side away from the dual-axis motor placement block 43, and the inner walls of the two second conical teeth 46 are fixedly connected with screw rods 48, and the two screw rods 48 The bottom of each of them penetrates to the bottom of the partition 47 and is movably connected to the bottom of the inner wall of the vertical plate 41. The middle part of the bottom of the vertical plate 41 is a hollow structure. The expander 5 includes an expander housing 51. The left and right sides of the expander housing 51 are respectively fixedly connected with transmission blocks 52. The inner walls of the two transmission blocks 52 are threadedly connected to the outer wall of the screw rod 48. The top of the inner wall of the expander housing 51 is fixedly connected with a third motor placement block 53. The inner wall of the third motor placement block 53 is fixedly connected with a third motor 54. The output end of the third motor 54 is fixedly connected with a third conical tooth 55. The third conical tooth 55 is away from the right side and meshes with the fourth conical tooth 56. The inner wall of the four-conical teeth 56 is fixedly connected with a second screw rod 57, the bottom of the second screw rod 57 is movably connected to the bottom of the inner wall of the expander housing 51, the outer wall of the second screw rod 57 is threadedly connected with an expander transmission block 58, the left side of the expander transmission block 58 is fixedly connected with an expander 59, the left side of the expander 59 is fixedly connected with an expander slider 511, the left side of the expander slider 511 is slidably connected to the left side of the inner wall of the expander housing 51, and the bottom left side of the expander housing 51 is hollowed out. When the expander 59 needs to be used for expansion, the conical teeth 45 at both ends of the double-axis motor 44 are started to drive the second conical teeth 46 Rotate the screw rod 48. After the screw rod 48 rotates, the transmission block 52 drives the expander housing 51 to move downward out of the inner wall of the vertical plate 41. Then, the third motor 54 is started to drive the second screw rod 57 to rotate, so that the expander transmission block 58 drives the expander 59 to move downward and move the expander 59 out of the inner wall of the expander housing 51 for expanding and pressing. When the expanding and pressing work is not needed, the expander 59 and the expander housing 51 are respectively transmitted to the expander housing 51 and the inner wall of the vertical plate 41 by the third motor 54 and the dual-axis motor 44 to prevent paper scraps and dust in the factory from entering the expander 59 and causing the expander 59 to be blocked and affect the expanding and pressing.

[0029] Working principle: When using the device, when expansion and pressing is required, first start the motor 13 on the inner wall of the mold table base 11 to drive the gear 14 to rotate, thereby driving the internal gear 16 on the top of the bottom shaft 15 to rotate, and the rotation of the internal gear 16 drives the mold placement block 2 on which the mold box 3 is placed to rotate to the bottom of the expander protection shell 4, and then start the inner wall of the expander protection shell 4 to expand and press the special-shaped paper lunch box placed on the inner wall of the mold box bottom block 31. When the special-shaped paper lunch box needs to be replaced, start the second motor 25 to drive the bidirectional screw 28 to rotate, thereby driving the rotating rod transmission block 29 to the opposite The pull plate 212 is pushed to the opposite side to drive the limit plate 22 to push, and the limit on the mold placement box 32 is released to remove the mold box bottom block 31 from the inner wall of the mold placement block shell 21, and then the mold placement box 32 of different types of special-shaped paper lunch boxes that need to be expanded and pressed is replaced, and the second motor 25 is restarted to drive the two rotating rod transmission blocks 29 to move to the opposite side to pull the limit plate 22 to clamp the mold box bottom block 31 of another type, so that different special-shaped paper lunch boxes can be placed on the inner wall of the corresponding mold placement box 32 through the expansion and pressing machine protective shell 4 for expansion and pressing;

[0030] When the expander 59 is needed to be used for expansion and pressing, the conical teeth 45 at both ends of the double-axis motor 44 are started to drive the second conical teeth 46 to rotate the screw 48. After the screw 48 rotates, the transmission block 52 drives the expander housing 51 to move downward out of the inner wall of the vertical plate 41. Then, the third motor 54 is started to drive the second screw 57 to rotate, so that the expander transmission block 58 drives the expander 59 to move downward and move the expander 59 out of the inner wall of the expander housing 51 for expansion and pressing. When the expansion and pressing work is not needed, the expander 59 and the expander housing 51 are respectively transmitted to the inner walls of the expander housing 51 and the vertical plate 41 by the third motor 54 and the double-axis motor 44 to prevent paper scraps and dust in the factory from entering the interior of the expander 59 and causing the expander 59 to be blocked and affect the expansion and pressing.

[0031] The above is the working process of the entire device, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special-shaped paper lunch box expansion and compression molding machine, comprising a mold table (1), characterized in that: The top of the mold table (1) is fixedly connected to a plurality of mold placement blocks (2), the inner walls of the plurality of mold placement blocks (2) are fixedly connected to a mold box (3), the rear side of the mold table (1) is fixedly connected to a swelling machine protection shell (4), and the inner wall of the swelling machine protection shell (4) is movably connected to a swelling machine (5); The mold table (1) comprises a mold table base (11); a motor placement groove (12) is provided at the bottom of the mold table base (11); a motor (13) is fixedly connected to the inner wall of the motor placement groove (12); a gear (14) is fixedly connected to the output end of the motor (13); a bottom shaft (15) is fixedly connected to the top of the mold table base (11); an internal gear (16) is rotatably connected to the top of the bottom shaft (15); and the inner wall of the internal gear (16) meshes with the outer wall of the gear (14).

2. The special-shaped paper lunch box expansion and compression molding machine according to claim 1, characterized in that: The mold placement block (2) comprises a mold placement block shell (21), the bottom of the mold placement block shell (21) is fixedly connected to the top of the internal gear (16), the bottom of the inner wall of the mold placement block shell (21) is fixedly connected to a motor placement plate (23), the bottom of the motor placement plate (23) is fixedly connected to a motor placement block (24), the inner wall of the motor placement block (24) is fixedly connected to a second motor (25), the output end of the second motor (25) passes through the top of the motor placement plate (23) and is fixedly connected to a second bidirectional screw cone tooth (27), the top of the second bidirectional screw cone tooth (27) meshes with the bidirectional screw cone tooth (26), the inner wall of the bidirectional screw cone tooth (26) is fixedly connected to a bidirectional screw (28), and the left and right ends of the bidirectional screw (28) are respectively movably connected to the left and right sides of the inner wall of the mold placement block shell (21).

3. The special-shaped paper lunch box expansion and compression molding machine according to claim 2, characterized in that: The inner wall of the mold placement block housing (21) is provided with placement block slots (211) on both the front and rear sides of the left and right sides of the inner wall, the outer walls of the left and right sides of the bidirectional screw rod (28) are threadedly connected with rotating rod transmission blocks (29), the front and rear sides of the two rotating rod transmission blocks (29) are rotatably connected with rotating rods (210), the two groups of rotating rods (210) are rotatably connected with pull plates (212) on the side away from the rotating rod transmission blocks (29), the left and right sides of the two pull plates (212) are slidably connected to the inner wall of the placement block slot (211), and the tops of the two pull plates (212) are fixedly connected to the limiting plates (22).

4. The special-shaped paper lunch box expansion and compression molding machine according to claim 1, characterized in that: The mold box (3) comprises a mold box bottom block (31), the outer wall of the mold box bottom block (31) is movably connected to the inner wall of the mold placement block shell (21), and the top of the mold box bottom block (31) is fixedly connected to the mold placement box (32).

5. The special-shaped paper lunch box expansion and compression molding machine according to claim 1, characterized in that: The expander protective shell (4) comprises a vertical plate (41), the front side of the vertical plate (41) is fixedly connected to a protective shell (42), the upper inner wall of the protective shell (42) is fixedly connected to a partition plate (47), the top of the partition plate (47) is fixedly connected to a dual-axis motor placement block (43), the inner wall of the dual-axis motor placement block (43) is fixedly connected to a dual-axis motor (44), the left and right output ends of the dual-axis motor (44) respectively extend to the outer wall of the dual-axis motor placement block (43) and are fixedly connected to conical teeth (45), the two conical teeth (45) are meshed with second conical teeth (46) on one side away from the dual-axis motor placement block (43), the inner walls of the two second conical teeth (46) are fixedly connected to screw rods (48), the bottoms of the two screw rods (48) pass through the bottom of the partition plate (47) and are movably connected to the bottom of the inner wall of the vertical plate (41), and the middle of the bottom of the vertical plate (41) is a hollow structure.

6. The special-shaped paper lunch box expansion and compression molding machine according to claim 1, characterized in that: The expander (5) comprises an expander housing (51), and transmission blocks (52) are fixedly connected to the left and right sides of the expander housing (51), respectively, and the inner walls of the two transmission blocks (52) are both threadedly connected to the outer wall of the screw rod (48), and a third motor placement block (53) is fixedly connected to the top of the inner wall of the expander housing (51), and a third motor (54) is fixedly connected to the inner wall of the third motor placement block (53), and a third conical tooth (55) is fixedly connected to the output end of the third motor (54), and the third conical tooth (55) is away from the right side and meshes with a fourth conical tooth (56), and the inner wall of the fourth conical tooth (56) is fixedly connected to a second screw rod (57), and the bottom of the second screw rod (57) is movably connected to the bottom of the inner wall of the expander housing (51).

7. The special-shaped paper lunch box expansion and compression molding machine according to claim 6, characterized in that: The outer wall of the second screw rod (57) is threadedly connected to an expander transmission block (58), the left side of the expander transmission block (58) is fixedly connected to an expander (59), the left side of the expander (59) is fixedly connected to an expander slider (511), the left side of the expander slider (511) is slidably connected to the left side of the inner wall of the expander housing (51), and the bottom left side of the expander housing (51) is hollowed out.

Images