Hollow food plastic container forming machine

Abstract

The invention relates to the technical field of plastic container forming, and discloses a hollow food plastic container forming machine which comprises a base, a mounting frame, a forming chamber and an injection bin, the mounting frame is fixedly mounted on the base, the injection bin, a hot melting conveying assembly and the forming chamber are arranged on the mounting frame, and a forming mold is arranged in the forming chamber; an automatic closing-in assembly is arranged above the forming mold and comprises a first closing-in rod, a second closing-in rod and a closing-in linkage box, the closing-in linkage box is sleeved with the two closing-in rods, mounting blocks are fixedly mounted at the left end of the first closing-in rod and the left end of the second closing-in rod correspondingly, closing-in strips are fixed to the two mounting blocks through bolts correspondingly, and the closing-in strips are connected with the closing-in linkage box through bolts correspondingly. Linkage blocks are fixedly installed on the first closing-in rod and the second closing-in rod correspondingly. The first closing-in rod and the second closing-in rod are both sleeved with sliding rings. According to the automatic closing-up device, automatic closing-up operation can be conducted on blow-molded blank bags, contact between workers and the heated blank bags is avoided, and potential safety hazards caused by manual closing-up are prevented.

Description

Technical Field

[0001] The invention relates to the technical field of plastic container molding, in particular to a hollow food plastic container molding machine. Background Art

[0002] Plastic is a widely used synthetic material. With the in-depth research on polymer materials, many different types of plastics have been synthesized and many uses have been developed based on their unique properties. Some plastics are used to make food containers due to their strong chemical stability and good heat resistance to ensure the preservation, protection and convenient carrying of food. Hollow plastic containers usually adopt the blow molding process. The blow molding process has fast molding speed and high molding quality. It is suitable for mass production to meet the market demand for hollow plastic products. In order to produce higher quality hollow food plastic containers faster, a hollow food plastic container forming machine is needed.

[0003] At present, the hollow food plastic container forming machine mainly includes a base, a mounting frame, a molding chamber and an injection chamber. The mounting frame is fixedly installed on the base, and an injection chamber is arranged on the right side of the mounting frame. A hot melt conveying assembly is fixedly installed on the left side of the injection chamber, and a molding chamber is fixedly installed on the left side of the hot melt conveying assembly. A molding mold is arranged in the molding chamber, and a film blowing machine head is arranged above the molding mold. When blow molding is carried out, the raw material is injected into the hot melt conveying assembly from the injection chamber, and the raw material is transported into the molding chamber while being heated, and is blown out through the film blowing machine head to form a blank bag. After manual closing, the material is continued to be discharged. When the set position is reached, the mold is closed to form the blank bag. After the molded plastic container is cooled, the mold is demoulded, and the plastic container is manually removed from the blank bag, and then the blank bag is manually closed; however, the prior art still has many shortcomings, for example: the blank bag cannot be automatically closed to avoid the potential safety hazards of manual closing. Summary of the invention

[0004] The object of the present invention is to provide a hollow food plastic container forming machine to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A hollow food plastic container forming machine, comprising a base, a mounting frame, a forming chamber, and an injection chamber, wherein the mounting frame is fixedly mounted on the base, an injection chamber is arranged on the right side of the mounting frame, a hot melt conveying assembly is fixedly mounted on the left side of the injection chamber, the forming chamber is fixedly mounted on the left side of the hot melt conveying assembly, a forming mold is arranged in the forming chamber, an automatic closing assembly is arranged above the forming mold, the automatic closing assembly comprises a first closing rod, a second closing rod, and a closing linkage box, the closing linkage box is sleeved with the first closing rod and the second closing rod, a first mounting block is fixedly mounted on the left end of the first closing rod, a second mounting block is fixedly mounted on the left end of the second closing rod, closing strips are bolted on the first mounting block and the second mounting block, a first linkage block is fixedly mounted on the first closing rod, a second linkage block is fixedly mounted on the second closing rod, a first sliding ring is also sleeved on the first closing rod, a second sliding ring is sleeved on the second closing rod, the lower end of the first linkage block is fixedly connected to the second sliding ring, and the second linkage block is fixedly connected to the first sliding ring.

[0006] As a further improvement of the above scheme, a closing electric cylinder is fixedly installed under the closing linkage box, and a first transmission connecting rod is rotatably installed on the telescopic end of the closing electric cylinder, a T-shaped connecting rod is rotatably installed on the first transmission connecting rod, and the T-shaped connecting rod is rotatably installed on the inner side wall of the closing linkage box, an adjustable connecting rod mechanism is rotatably installed on the left end of the T-shaped connecting rod, and the adjustable connecting rod mechanism is rotatably installed on the upper end of the first linkage block, and a second transmission connecting rod is rotatably installed on the right end of the T-shaped connecting rod, and the second transmission connecting rod is fixedly installed on the lower end of the second linkage block.

[0007] As a further improvement of the above scheme, the adjustable connecting rod mechanism includes two connecting rods and an adjusting sleeve. The upper ends of the two connecting rods are provided with mounting holes, and the lower ends of the two connecting rods are provided with threads. The threads on the two connecting rods are opposite to each other, and the two connecting rod threads are installed at both ends of the adjusting sleeve.

[0008] As a further improvement of the above scheme, the closing strip on the first mounting block is higher than the closing strip on the second mounting block. A cutting assembly is fixedly mounted on the second mounting block, and the cutting assembly includes an electric rodless cylinder, a slider and a cutting tool. The electric rodless cylinder is fixedly mounted on the second mounting block, the slider is slidably mounted on the electric rodless cylinder, and the cutting tool is fixedly mounted on the slider.

[0009] As a further improvement of the above scheme, the cutting tool includes a mounting plate, a tool handle and a circular blade, the mounting plate is fixedly mounted on the slider, the tool handle is rotatably mounted on the mounting plate, the circular blade is rotatably mounted on the tool handle, a tensioning seat is fixedly connected to the mounting plate, and a tensioning spring is fixedly mounted between the tensioning seat and the tool handle.

[0010] As a further improvement of the above scheme, the hot melt conveying assembly includes a protective shell, a conveying pipe and a heating sleeve. The conveying pipe is arranged in the protective shell, the heating sleeve is arranged on the outer sleeve of the conveying pipe, and a conveying auger is arranged inside the conveying pipe. The output end of the conveying pipe passes through the side wall of the molding chamber and is fixedly installed with a film blowing machine head, and the film blowing machine head is fixedly installed above the automatic closing assembly.

[0011] As a further improvement to the above scheme, a material storage assembly is provided on the injection bin, and the material storage assembly includes a feeding hopper, a storage hopper and an adapter plate. The lower end of the feeding hopper is fixedly connected to the storage hopper, and the lower end of the storage hopper is fixedly installed with a discharge pipe, and the lower end of the discharge pipe is slidably installed on the adapter plate.

[0012] As a further improvement to the above solution, a suction pipe is fixedly installed on the upper end of the feeding hopper, an exhaust pipe is connected to the side wall of the feeding hopper, and a suction machine is fixedly installed at the air outlet of the exhaust pipe.

[0013] As a further improvement to the above scheme, a hot air dryer is provided on the side wall of the storage hopper, a hot air drying pipe is fixedly connected to the air outlet of the hot air dryer, the hot air drying pipe is connected to the storage hopper, and a plug plate is provided at the connection between the storage hopper and the discharge pipe.

[0014] As a further improvement to the above scheme, a discharge hole and a unloading hole are provided on the adapter plate, the discharge hole is fixedly connected to the input port of the conveying pipe, a unloading funnel is connected to the lower end of the unloading hole, and limit baffles are provided on both sides of the upper end of the adapter plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention arranges an automatic closing assembly above the mold, and the automatic closing assembly includes a first closing rod, a second closing rod and a closing linkage box. Mounting blocks are fixedly installed on the left sides of the two closing rods, and closing strips are bolted on the mounting blocks. Linkage blocks and slip rings are fixedly installed on the two closing rods. The linkage block on the first closing rod is rotatably connected to the left end of the T-shaped connecting rod through an adjustable connecting rod mechanism, and the linkage block on the second closing rod is rotatably connected to the right end of the T-shaped connecting rod through a connecting rod. The lower end of the T-shaped connecting rod is rotatably connected to an electric push rod through another connecting rod; the electric push rod pushes the T-shaped connecting rod to rotate, and the T-shaped connecting rod pushes the second closing rod to move to the left, and the T-shaped rod pulls the first closing rod to move to the right, and the closing strips on the two mounting blocks squeeze each other to squeeze and close the blank bag, thereby avoiding contact between workers and the heated blank bag and preventing safety hazards caused by manual closing.

[0017] 2. The present invention fixes a linkage block on the first closing rod, and rotatably installs an adjustable linkage mechanism between the linkage block and the T-shaped connecting rod. The adjustable linkage mechanism includes two connecting rods and an adjusting sleeve. The lower ends of the two connecting rods are provided with mutually reversed threads, and the two connecting rods are threadedly installed at both ends of the adjusting sleeve. Rotating the adjusting sleeve can adjust the length of the adjustable linkage mechanism, thereby changing the gap between the closing strips on the two mounting blocks to adapt to the closing of blank bags of different thicknesses, and avoiding deformation of the closing caused by excessive closing that affects the molding quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the material storage assembly of the present invention;

[0021] Figure 3 A partial cross-sectional view of the delivery pipe in the present invention;

[0022] Figure 4 It is a schematic diagram of the internal structure of the molding chamber in the present invention;

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the automatic closing component in the present invention;

[0024] Figure 6 This is a schematic diagram of the internal structure of the automatic closing component of the present invention from the first perspective;

[0025] Figure 7 This is a schematic diagram of the internal structure of the automatic closing component of the present invention from a second viewing angle;

[0026] Figure 8 It is a three-dimensional structural schematic diagram of the adjustable connecting rod mechanism in the present invention;

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the cut-off component in the present invention;

[0028] Fig.10 It is a three-dimensional structural schematic diagram of the cutting tool in the present invention;

[0029] In the figure: 1, base; 2, mounting frame; 3, molding chamber; 31, film blowing machine head; 4, injection chamber; 5, hot melt conveying assembly; 51, protective shell; 52, conveying pipe; 53, heating sleeve; 54, conveying auger; 6, molding mold; 7, automatic closing assembly; 701, first closing rod; 702, second closing rod; 703, closing linkage box; 704, first mounting block; 705, second mounting block; 706, closing strip; 707, first linkage block; 708, second linkage block; 709, first slip ring; 710, second slip ring; 711, closing electric cylinder; 712, first transmission connecting rod; 71 3. T-shaped connecting rod; 714. Adjustable connecting rod mechanism; 7141. Connecting rod; 7142. Adjusting sleeve; 715. Second transmission connecting rod; 8. Cutting assembly; 81. Electric rodless cylinder; 82. Sliding block; 83. Cutting tool; 831. Mounting plate; 832. Tool handle; 833. Circular blade; 834. Tensioning seat; 9. Storage assembly; 91. Feeding hopper; 911. Suction pipe; 912. Exhaust pipe; 913. Suction machine; 92. Storage hopper; 921. Discharge pipe; 922. Hot air dryer; 923. Hot air drying pipe; 93. Adapter plate; 931. Discharge hole; 932. Discharge hole. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example 1

[0032] A hollow food plastic container forming machine, such as Figures 1 to 3As shown, it includes a base 1, a mounting frame 2, a molding chamber 3, and an injection chamber 4. The mounting frame 2 is fixedly installed on the base 1, and the injection chamber 4 is arranged on the right side of the mounting frame 2. A hot melt conveying assembly 5 is fixedly installed on the left side of the injection chamber 4. The hot melt conveying assembly 5 includes a protective shell 51, a conveying pipe 52 and a heating sleeve 53. A conveying pipe 52 is arranged in the protective shell 51, and a heating sleeve 53 is arranged outside the conveying pipe 52. A conveying auger 54 is arranged inside the conveying pipe 52. Plastic particles are conveyed by the rotating auger. During the conveying process, the heating sleeve 53 heats the plastic particles to melt the plastic particles. A film blowing head 31 is fixedly installed on the output end of the conveying pipe 52 through the side wall of the molding chamber 3. The film blowing head 31 is fixedly installed above the automatic closing assembly 7. The molten plastic raw material is extruded through the film blowing head 31 to form a hollow embryo bag, so as to prepare for the next molding step.

[0033] like Figures 1 to 5 As shown, a molding chamber 3 is fixedly installed on the left side of the hot melt conveying component 5, a molding mold 6 is arranged in the molding chamber 3, an automatic closing component 7 is arranged above the molding mold 6, the automatic closing component 7 comprises a first closing rod 701, a second closing rod 702, and a closing linkage box 703, the closing linkage box 703 is sleeved with a first closing rod 701 and a second closing rod 702, a first mounting block 704 is fixedly installed on the left end of the first closing rod 701, a second mounting block 705 is fixedly installed on the left end of the second closing rod 702, a closing strip 706 is bolted to the first mounting block 704 and the second mounting block 705, and the first closing rod 701 is fixed with a first mounting block 704 and a second mounting block 705. 1 is fixedly installed with a first linkage block 707, and a second linkage block 708 is fixedly installed on the second closing rod 702. The first closing rod 701 is also sleeved with a first sliding ring 709, and the second closing rod 702 is sleeved with a second sliding ring 710. The lower end of the first linkage block 707 is fixedly connected to the second sliding ring 710, and the second linkage block 708 is fixedly connected to the first sliding ring 709. The first linkage block 707 can drive the first closing rod to move, and the second linkage block 708 can drive the second closing rod to move. The two linkage blocks move toward each other so that the closing strips 706 on the two mounting blocks can be squeezed, thereby realizing automatic closing.

[0034] like Figure 6 and Figure 7As shown, a closing electric cylinder 711 is fixedly installed below the closing linkage box 703, and a first transmission connecting rod 712 is rotatably installed on the telescopic end of the closing electric cylinder 711, and a T-shaped connecting rod 713 is rotatably installed on the first transmission connecting rod 712, and the T-shaped connecting rod 713 is rotatably installed on the inner wall of the closing linkage box 703, and an adjustable connecting rod mechanism 714 is rotatably installed on the left end of the T-shaped connecting rod 713, and the adjustable connecting rod mechanism 714 is rotatably installed on the upper end of the first linkage block 707, and a second transmission connecting rod 715 is rotatably installed on the right end of the T-shaped connecting rod 713, and the second transmission connecting rod 715 is fixedly installed on the lower end of the second linkage block 708. The closing electric cylinder 711 extends out to push the T-shaped connecting rod to rotate upward, so that the two linkage blocks move toward each other to realize automatic closing. When the electric cylinder is retracted, the T-shaped connecting rod rotates downward, and the two linkage blocks move in opposite directions to realize the release of the closing action.

[0035] like Figure 1 and Figure 2 As shown, a storage assembly 9 is provided on the injection bin 4, and the storage assembly 9 includes a feeding hopper 91, a storage hopper 92 and an adapter plate 93. The lower end of the feeding hopper 91 is fixedly connected to the storage hopper 92, and a discharge pipe 921 is fixedly installed at the lower end of the storage hopper 92. The lower end of the discharge pipe 921 is slidably installed on the adapter plate 93. A suction pipe 911 is fixedly installed at the upper end of the feeding hopper 91, and an exhaust pipe 912 is connected to the side wall of the feeding hopper 91. A suction machine 91 is fixedly installed at the air outlet of the exhaust pipe 912. 3. A hot air dryer 922 is provided on the side wall of the storage hopper 92. A hot air drying pipe 923 is fixedly connected to the air outlet of the hot air dryer 922. The hot air drying pipe 923 is connected to the storage hopper 92. A plug plate is provided at the connection between the storage hopper 92 and the discharge pipe 921. A discharge hole 931 and a discharge hole 932 are provided on the adapter plate 93. The discharge hole 931 is fixedly connected to the input port of the conveying pipe 52. A discharge funnel is connected to the lower end of the discharge hole 932. Limit baffles are provided on both sides of the upper end of the adapter plate 93.

[0036] When working in Example 1, the equipment is started, the suction pipe 911 is inserted into the raw material bag so that the raw material is sucked into the feeding hopper, the raw material falls into the storage hopper, and enters the conveying pipe 52 through the discharge pipe 921. The auger rotates to transport the raw material particles to the molding chamber 3 through the conveying pipe 52. The heating sleeve 53 heats and melts the raw material particles in the conveying pipe. The molten raw material enters the film blowing head 31 and is extruded from the lower end of the film blowing head 31 to form a hollow embryo bag. The closing electric cylinder 711 is started, and the telescopic end of the closing electric cylinder 711 rises upward, pushing the T-shaped connecting rod 712 through the first transmission connecting rod 712. The rod rotates upward, causing the two linkage blocks to move toward each other, and the two closing strips squeeze the lower end of the embryo bag to achieve automatic closing. When the electric cylinder is retracted, the T-shaped connecting rod rotates downward, and the two linkage blocks move in the opposite direction to release the closing action. The embryo bag continues to discharge downward, and at the same time, the film blowing head 31 blows air into the embryo bag to make the embryo bag bulge. When the embryo bag enters the mold position, the discharge is stopped, the forming mold 6 is closed, and the automatic closing component 7 performs the automatic closing action again. After the product is cooled, the forming mold 6 is unlocked, the automatic closing component 7 is unlocked, and the product is removed from the embryo bag.

[0037] Example 2

[0038] Embodiment 2 is based on embodiment 1, as Figure 8 As shown, the adjustable connecting rod mechanism 714 includes two connecting rods 7141 and an adjusting sleeve 7142. The upper ends of the two connecting rods 7141 are provided with mounting holes, and the lower ends of the two connecting rods 7141 are provided with threads. The threads on the two connecting rods 7141 are opposite to each other, and the two connecting rods 7141 are threadedly installed at both ends of the adjusting sleeve 7142.

[0039] When working, according to the thickness of the material of the embryo bag and the closing requirements, the adjusting sleeve 7142 is rotated to increase the length of the adjustable link mechanism 714, thereby increasing the distance between the first linkage block 707 and the T-shaped link, so that the spacing between the closing strips 706 on the two mounting blocks becomes larger, reducing the extrusion on the lower end of the embryo bag, avoiding the deformation of the thicker embryo bag by extrusion, and affecting the subsequent molding quality; the adjusting sleeve 7142 is rotated in the opposite direction to reduce the length of the adjustable link mechanism 714, so that the spacing between the closing strips 706 on the two mounting blocks becomes smaller, increasing the extrusion on the lower end of the embryo bag, squeezing the thinner embryo bag tightly, ensuring the closing quality, and preventing gas leakage during the blow molding process, resulting in product molding failure. .

[0040] Example 3

[0041] Embodiment 3 is based on embodiment 1, as Figure 7 , Fig. 9 and Fig.10As shown, the closing strip 706 on the first mounting block 704 is higher than the closing strip 706 on the second mounting block 705. A cutting assembly 8 is fixedly mounted on the second mounting block 705, and the cutting assembly 8 includes an electric rodless cylinder 81, a slider 82 and a cutting tool 83. The electric rodless cylinder 81 is fixedly mounted on the second mounting block 705, and a slider 82 is slidably mounted on the electric rodless cylinder 81. The cutting tool 83 is fixedly mounted on the slider 82. The cutting tool 83 includes a mounting plate 831, a tool handle 832 and a circular blade 833. The mounting plate 831 is fixedly mounted on the slider 82, and the tool handle 832 is rotatably mounted on the mounting plate 831. The circular blade 833 is rotatably mounted on the tool handle 832. A tensioning seat 834 is fixedly connected to the mounting plate 831, and a tensioning spring is fixedly mounted between the tensioning seat 834 and the tool handle 832.

[0042] When Example 3 is working, after the injection molding is completed, the automatic closing component 7 squeezes and closes the embryo bag. Under the action of the tensioning spring, the blade head of the handle 83 deflects toward the embryo bag, and the circular blade 833 cuts into the embryo bag. The electric rodless cylinder 81 is started, and the slider 82 drives the cutting tool 83 to slide along the electric rodless cylinder 81. The circular blade 833 rolls and cuts on the embryo bag to separate the molded product from the embryo bag. After the mold and the automatic closing component 7 are unlocked, the product falls automatically to avoid tearing the lower end of the embryo bag to form irregular notches when the product is manually removed, thereby ensuring the quality of subsequent product molding, while reducing waste generation and reducing production costs.

[0043] 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 hollow food plastic container forming machine, comprising a base (1), a mounting frame (2), a forming chamber (3), and an injection chamber (4), wherein the mounting frame (2) is fixedly mounted on the base (1), an injection chamber (4) is arranged on the right side of the mounting frame (2), a hot melt conveying assembly (5) is fixedly mounted on the left side of the injection chamber (4), the forming chamber (3) is fixedly mounted on the left side of the hot melt conveying assembly (5), and a forming mold (6) is arranged in the forming chamber (3), characterized in that: An automatic closing assembly (7) is arranged above the molding die (6), and the automatic closing assembly (7) comprises a first closing rod (701), a second closing rod (702), and a closing linkage box (703); the first closing rod (701) and the second closing rod (702) are sleeved on the closing linkage box (703); a first mounting block (704) is fixedly mounted on the left end of the first closing rod (701); a second mounting block (705) is fixedly mounted on the left end of the second closing rod (702); the first mounting block (704) and the second mounting block (705) are fixedly mounted on the left end of the second closing rod (702); A closing strip (706) is bolted to each of the blocks (705); a first linkage block (707) is fixedly installed on the first closing rod (701); a second linkage block (708) is fixedly installed on the second closing rod (702); a first sliding ring (709) is also sleeved on the first closing rod (701); a second sliding ring (710) is sleeved on the second closing rod (702); the lower end of the first linkage block (707) is fixedly connected to the second sliding ring (710); and the second linkage block (708) is fixedly connected to the first sliding ring (709).

2. A hollow food plastic container forming machine according to claim 1, characterized in that: A closing electric cylinder (711) is fixedly installed below the closing linkage box (703); a first transmission connecting rod (712) is rotatably installed on the telescopic end of the closing electric cylinder (711); a T-shaped connecting rod (713) is rotatably installed on the first transmission connecting rod (712); the T-shaped connecting rod (713) is rotatably installed on the inner wall of the closing linkage box (703); an adjustable connecting rod mechanism (714) is rotatably installed on the left end of the T-shaped connecting rod (713); the adjustable connecting rod mechanism (714) is rotatably installed on the upper end of the first linkage block (707); a second transmission connecting rod (715) is rotatably installed on the right end of the T-shaped connecting rod (713); the second transmission connecting rod (715) is fixedly installed on the lower end of the second linkage block (708).

3. A hollow food plastic container forming machine according to claim 2, characterized in that: The adjustable connecting rod mechanism (714) comprises two connecting rods (7141) and an adjusting sleeve (7142); the upper ends of the two connecting rods (7141) are provided with mounting holes; the lower ends of the two connecting rods (7141) are provided with threads; the threads on the two connecting rods (7141) are mutually reversed; and the two connecting rods (7141) are threadedly mounted on both ends of the adjusting sleeve (7142).

4. A hollow food plastic container forming machine according to claim 3, characterized in that: The closing strip (706) on the first mounting block (704) is higher than the closing strip (706) on the second mounting block (705). A cutting assembly (8) is fixedly mounted on the second mounting block (705), and the cutting assembly (8) includes an electric rodless cylinder (81), a slider (82) and a cutting tool (83). The electric rodless cylinder (81) is fixedly mounted on the second mounting block (705), the slider (82) is slidably mounted on the electric rodless cylinder (81), and the cutting tool (83) is fixedly mounted on the slider (82).

5. A hollow food plastic container forming machine according to claim 4, characterized in that: The cutting tool (83) comprises a mounting plate (831), a knife handle (832) and a circular blade (833); the mounting plate (831) is fixedly mounted on the slider (82); the knife handle (832) is rotatably mounted on the mounting plate (831); the circular blade (833) is rotatably mounted on the knife handle (832); a tensioning seat (834) is fixedly connected to the mounting plate (831); a tensioning spring is fixedly mounted between the tensioning seat (834) and the knife handle (832).

6. A hollow food plastic container forming machine according to claim 1, characterized in that: The hot melt conveying assembly (5) comprises a protective shell (51), a conveying pipe (52) and a heating sleeve (53); the conveying pipe (52) is arranged inside the protective shell (51); the outer shell of the conveying pipe (52) is provided with the heating sleeve (53); the inner shell of the conveying pipe (52) is provided with a conveying auger (54); the output end of the conveying pipe (52) passes through the side wall of the molding chamber (3) and is fixedly installed with a film blowing machine head (31); the film blowing machine head (31) is fixedly installed above the automatic closing assembly (7).

7. A hollow food plastic container forming machine according to claim 1, characterized in that: The injection bin (4) is provided with a material storage assembly (9), the material storage assembly (9) comprising a feeding hopper (91), a material storage hopper (92) and an adapter plate (93), the feeding hopper (91) is fixedly connected to the material storage hopper (92) at its lower end, the material storage hopper (92) is fixedly installed with a discharge pipe (921) at its lower end, and the discharge pipe (921) is slidably installed on the adapter plate (93).

8. A hollow food plastic container forming machine according to claim 7, characterized in that: A suction pipe (911) is fixedly installed on the upper end of the feeding hopper (91), a side wall of the feeding hopper (91) is connected to an exhaust pipe (912), and a suction machine (913) is fixedly installed at the air outlet of the exhaust pipe (912).

9. A hollow food plastic container forming machine according to claim 7, characterized in that: A hot air dryer (922) is provided on the side wall of the material storage hopper (92); a hot air drying pipe (923) is fixedly connected to the air outlet of the hot air dryer (922); the hot air drying pipe (923) is connected to the material storage hopper (92); and a plug plate is provided at the connection between the material storage hopper (92) and the discharge pipe (921).

10. A hollow food plastic container forming machine according to claim 6 or 7, characterized in that: The adapter plate (93) is provided with a discharge hole (931) and a discharge hole (932); the discharge hole (931) is fixedly connected to the input port of the conveying pipe (52); the lower end of the discharge hole (932) is connected to a discharge funnel; and limit baffles are provided on both sides of the upper end of the adapter plate (93).

Images