A whole ham fast vacuum packaging machine

Abstract

The utility model relates to ham packaging technical field discloses a whole ham quick vacuum packaging machine, including support, the support rear end face center upper part fixedly connected with frame, the frame rear end face center fixedly connected with slide rail, the slide rail rear end face center fixedly connected with second hydraulic cylinder, second hydraulic cylinder output end penetrates the rear end face of slide rail and leads to the inside of slide rail, and the end portion fixedly connected with the air extraction structure, the air extraction structure includes the sliding block, the inclined plane is established in the sliding block upper end face front part, the arc -shaped frame is fixedly connected with the inclined plane upper end face center, the arc -shaped frame front end fixedly connected with piston cylinder, the arc -shaped frame inside fixedly connected with fourth hydraulic cylinder. In the utility model, the inclined piston suction structure and low -position collection cavity combination scheme, through the inclined piston suction and low -position collection cavity collection grease and impurity, completely solve the problem of air extraction pipe blockage, improve the vacuum efficiency and equipment cleaning convenience simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of ham packaging technology, and in particular to a rapid vacuum packaging machine for whole hams. Background Technology

[0002] Ham is a traditional Chinese delicacy made from the hind leg of an animal through processes such as salting, smoking, fermentation, and drying. Whole ham vacuum packaging is a modern food preservation technology that uses mechanical or manual equipment to quickly remove air from the packaging, creating a low-oxygen negative pressure environment. This aims to preserve the whole ham for a long time by inhibiting microbial growth and delaying oxidation, while maintaining its original flavor and texture.

[0003] Existing rapid vacuum packaging machines for whole hams still have some problems. They face core issues such as grease residue in the vacuum tube, blockage by impurities, and poor airflow due to excessive bends in the tube, resulting in low vacuuming efficiency. These issues seriously affect the operating efficiency of the equipment and the hygiene quality of the food packaging. Therefore, those skilled in the art have provided a rapid vacuum packaging machine for whole hams to solve the problems mentioned in the background. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rapid vacuum packaging machine for whole hams. The machine combines an inclined piston suction structure with a low-position collection chamber to collect grease and impurities, thus completely solving the problem of air pipe blockage and improving vacuuming efficiency and ease of equipment cleaning.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rapid vacuum packaging machine for whole ham, comprising a support frame, a frame fixedly connected to the upper center of the rear end face of the support frame, a slide rail fixedly connected to the center of the rear end face of the frame, a second hydraulic cylinder fixedly connected to the center of the rear end face of the slide rail, the output end of the second hydraulic cylinder passing through the rear end face of the slide rail and extending into the interior of the slide rail, and an air extraction structure fixedly connected to its end. The air extraction structure includes a slider, an inclined surface is provided at the front of the upper end face of the slider, an arc-shaped frame is fixedly connected to the center of the upper end face of the inclined surface, a piston cylinder is fixedly connected to the front end of the arc-shaped frame, a fourth hydraulic cylinder is fixedly connected inside the arc-shaped frame, a piston plug is fixedly connected to the output end of the fourth hydraulic cylinder, a material receiving structure is fixedly connected to the lower center of the front end face of the piston cylinder, a pipe is fixedly connected to the center of the front end face of the piston cylinder, and an air pipe is fixedly connected to the front end of the pipe. The above technical solution controls the retraction of the fourth hydraulic cylinder, which drives the piston to move backward, and extracts the air from inside the bag through the air pipe, which, together with the material collection structure, facilitates cleaning.

[0006] Furthermore, a baffle is fixedly sleeved on the outer wall of the trachea, the baffle is fixedly connected to the upper end face of the slider, and a connecting seat is fixedly connected to both ends of the front end face of the baffle near the top. A support rod is rotatably connected to the front end of each of the two connecting seats. A double-headed cylinder is provided between the two support rods. An extension column is fixedly connected to each of the two output ends of the double-headed cylinder. A groove is opened at the center of the upper end face of each of the two extension columns, and the two support rods are respectively set inside the two grooves. The above technical solution controls the extension of the double-headed cylinder. The two output ends of the double-headed cylinder push the two extension columns to move to both sides, thereby driving the two support rods to move to both sides, so that the sealing position is flattened and the opening position is not flat.

[0007] Furthermore, a storage groove is provided at the center of the front inner wall of the piston cylinder, and a grid is rotatably connected to the upper part of the storage groove, with an oil-blocking cloth fixedly connected to the rear end face of the grid. With the above technical solution, during the air intake process, the oil-blocking cloth and grid rotate inside the storage tank and rotate with the airflow, which facilitates the entry of oil and impurities in the airflow into the piston cylinder. During the air exhaust process, the airflow pushes the oil-blocking cloth and grid to squeeze inside the storage tank, preventing impurities and oil from being discharged.

[0008] Furthermore, the receiving structure includes an installation groove, which is opened on the upper end face of the slider. A box is fixedly connected inside the installation groove. A storage box is provided at the center of one end face of the box. The storage box passes through one side wall of the box and extends into the inside of the box. A connecting pipe is fixedly connected at the center of the upper end face of the box. The connecting pipe passes through the lower end face of the piston cylinder and extends into the lower inner wall of the piston cylinder. Through the above technical solution, the oil and impurities enter the storage tank through the connecting pipe by their own weight.

[0009] Furthermore, an extension ring is fixedly fitted onto the outer wall of the storage box on one side of the box body, and a sealing gasket is fixedly connected to one end face of the extension ring near the extension ring. A fifth hydraulic cylinder is fixedly connected to the lower inner wall of the mounting groove on the side of the storage box away from the box body, and a handle is fixedly connected to the upper center of the side wall of the storage box away from the box body. By controlling the retraction of the fifth hydraulic cylinder and moving its output end away from the storage tank, the storage tank can be pulled out by the handle, making it easier to clean the oil and impurities.

[0010] Furthermore, the bracket has horizontally arranged rotating shafts connected to the upper part of its interior, and a servo motor is fixedly connected to the upper part of one side of the front face of the bracket. The output end of the servo motor passes through the front face of the bracket and extends into the interior of the bracket, and its end is fixedly connected to the rotating shaft on one side. A conveyor belt is sleeved on the outer wall of the multiple rotating shafts. The above technical solution involves starting a servo motor, which drives a rotating shaft on one side to rotate. The rotating shafts on both sides support the conveyor belt. As the rotating shaft on one side rotates, it drives the conveyor belt to rotate, causing the packaging bags placed on the conveyor belt to move to one side.

[0011] Furthermore, a first hydraulic cylinder is fixedly connected to the center of the upper end face of the bracket near the front, and a push plate is fixedly connected to the output end of the first hydraulic cylinder; By controlling the extension of the first hydraulic cylinder, the first hydraulic cylinder pushes the push plate to move backward, thus pushing the packaging bag backward.

[0012] Furthermore, a base plate is fixedly connected to the upper center of the front end of the frame, a gantry frame is fixedly connected to the upper surface of the rear end frame of the base plate, an extension frame is fixedly connected to the front center of the front end face of the gantry frame, a third hydraulic cylinder is fixedly connected to the center of the upper end face of the extension frame, the output end of the third hydraulic cylinder passes through the upper end face of the extension frame and extends to the lower end of the extension frame, and a heat-sealing structure is fixedly connected to the end of the cylinder, a column is fixedly connected to the center of the upper end face of the gantry frame, and a hanging rod is fixedly connected to the upper side of both sides of the column, the other end of the two hanging rods is fixedly connected to the front center of both sides of the extension frame, and a guide clamp is fixedly connected to the upper surface of the outer frame of the air pipe. Using the above technical solution, the third hydraulic cylinder is then extended, and the third hydraulic cylinder pushes the heating and sealing structure down onto the surface of the bag.

[0013] This utility model has the following beneficial effects: 1. In this utility model, the combination of the tilted piston suction structure and the low-position collection chamber in the whole ham rapid vacuum packaging machine collects grease and impurities by combining the tilted piston suction with the low-position collection chamber, which completely solves the problem of air pipe blockage, while improving vacuuming efficiency and equipment cleaning convenience.

[0014] 2. In this utility model, the extension of the double-headed cylinder is controlled. The two output ends of the double-headed cylinder push the two extension columns to move to both sides, thereby driving the two support rods to move to both sides, so that the sealing position is flattened and the opening position is not flat. Attached Figure Description

[0015] Figure 1 A perspective view of a rapid vacuum packaging machine for whole ham proposed in this utility model; Figure 2 This is a perspective view of a rapid vacuum packaging machine for whole ham proposed in this utility model. Figure 3 This is a perspective view of the air extraction structure of a rapid vacuum packaging machine for whole ham proposed in this utility model; Figure 4This is a perspective view of the vacuuming structure of a rapid vacuum packaging machine for whole ham proposed in this utility model. Figure 5 This is a three-dimensional sectional view of the air extraction structure of a rapid vacuum packaging machine for whole ham proposed in this utility model; Figure 6 for Figure 5 Enlarged diagram of point A in the middle.

[0016] Legend: 1. Support frame; 2. Servo motor; 3. Rotating shaft; 4. Conveyor belt; 5. First hydraulic cylinder; 6. Push plate; 7. Frame; 8. Slide rail; 9. Air extraction structure; 10. Material receiving structure; 11. Second hydraulic cylinder; 12. Base plate; 13. Gantry frame; 14. Column; 15. Extension frame; 16. Hanging rod; 17. Third hydraulic cylinder; 18. Guide clamp; 901. Slider; 902. Inclined plane; 903. Arc frame; 904. Piston cylinder; 905. Fourth hydraulic cylinder; 906. Baffle; 907. Connecting seat; 908. Support rod; 909. Double-headed cylinder; 910. Extension column; 911. Groove; 912. Piston plug; 913. Pipe; 914. Air pipe; 915. Storage tank; 916. Oil containment cloth; 917. Grid; 1001. Box body; 1002. Fifth hydraulic cylinder; 1003. Mounting slot; 1004. Storage box; 1005. Connecting pipe; 1006. Handle; 1007. Extension ring; 1008. Sealing gasket. Detailed Implementation

[0017] 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.

[0018] Reference Figure 1-6 An embodiment of this utility model is provided: a rapid vacuum packaging machine for whole ham, including a support 1, a frame 7 fixedly connected to the upper center of the rear end face of the support 1, a slide rail 8 fixedly connected to the center of the rear end face of the frame 7, a second hydraulic cylinder 11 fixedly connected to the center of the rear end face of the slide rail 8, the output end of the second hydraulic cylinder 11 passes through the rear end face of the slide rail 8 and extends into the interior of the slide rail 8, and an air extraction structure 9 is fixedly connected to the end.

[0019] like Figure 1 , 2As shown in Figures 3, 4, 5, and 6, the air extraction structure 9 includes a slider 901. An inclined surface 902 is provided at the front of the upper end face of the slider 901. An arc-shaped frame 903 is fixedly connected to the center of the upper end face of the inclined surface 902. A piston cylinder 904 is fixedly connected to the front end of the arc-shaped frame 903. A fourth hydraulic cylinder 905 is fixedly connected inside the arc-shaped frame 903. A piston plug 912 is fixedly connected to the output end of the fourth hydraulic cylinder 905. A material collection structure 10 is fixedly connected to the lower center of the front end face of the piston cylinder 904. A pipe 913 is fixedly connected to the center of the front end face of the piston cylinder 904. An air pipe 914 is fixedly connected to the front end of the pipe 913. Controlling the fourth hydraulic cylinder 905 to contract causes the piston plug 912 to move backward, extracting air from inside the bag through the air pipe 914. This, combined with the material collection structure 10, facilitates cleaning.

[0020] A baffle 906 is fixedly sleeved on the outer wall of the trachea 914. The baffle 906 is fixedly connected to the upper end face of the slider 901. Connecting seats 907 are fixedly connected to the upper ends of both front ends of the baffle 906. Support rods 908 are rotatably connected to the front ends of the two connecting seats 907. A double-headed cylinder 909 is provided between the two support rods 908. Extension columns 910 are fixedly connected to the two output ends of the double-headed cylinder 909. Grooves 911 are opened at the center of the upper end face of the two extension columns 910. The two support rods 908 are respectively set in the two grooves 911. The double-headed cylinder 909 is controlled to extend. The two output ends of the double-headed cylinder 909 push the two extension columns 910 to move to both sides, thereby driving the two support rods 908 to move to both sides, so that the sealing position is flattened and the opening position is not uneven.

[0021] A storage groove 915 is provided at the center of the front inner wall of the piston cylinder 904. A grid 917 is rotatably connected to the upper part of the storage groove 915. An oil-blocking cloth 916 is fixedly connected to the rear end face of the grid 917. During the air intake process, the oil-blocking cloth 916 and the grid 917 rotate inside the storage groove 915 with the airflow, which facilitates the entry of oil and impurities in the airflow into the piston cylinder 904. During the air exhaust process, the airflow pushes the oil-blocking cloth 916 and the grid 917 to be squeezed inside the storage groove 915 to prevent impurities and oil from being discharged.

[0022] like Figure 1 , 2As shown in Figures 3, 4, and 5, the receiving structure 10 includes a mounting groove 1003, which is formed on the upper end face of the slider 901. A box 1001 is fixedly connected inside the mounting groove 1003. A storage box 1004 is provided at the center of one end face of the box 1001. The storage box 1004 passes through one side wall of the box 1001 and extends into the interior of the box 1001. A connecting pipe 1005 is fixedly connected at the center of the upper end face of the box 1001. The connecting pipe 1005 passes through the lower end face of the piston cylinder 904 and extends into the lower inner wall of the piston cylinder 904. Due to its own weight, oil and impurities enter the interior of the storage box 1004 through the connecting pipe 1005.

[0023] An extension ring 1007 is fixedly fitted onto the outer wall of the storage box 1004 on one side of the box body 1001. A sealing gasket 1008 is fixedly connected to one end face of the extension ring 1007 near the extension ring 1007. A fifth hydraulic cylinder 1002 is fixedly connected to the lower inner wall of the mounting groove 1003 on the side of the storage box 1004 away from the box body 1001. A handle 1006 is fixedly connected to the upper center of the side wall of the storage box 1004 away from the box body 1001. The fifth hydraulic cylinder 1002 is controlled to retract, and the output end of the fifth hydraulic cylinder 1002 is away from the storage box 1004. The storage box 1004 is then pulled out through the handle 1006, which facilitates the cleaning of oil and impurities.

[0024] like Figure 1 and 2 As shown, a rotating shaft 3 is horizontally arranged and rotatably connected inside the upper part of the bracket 1. A servo motor 2 is fixedly connected to one side of the front face of the bracket 1. The output end of the servo motor 2 passes through the front face of the bracket 1 and extends into the interior of the bracket 1. The end of the servo motor 2 is fixedly connected to the rotating shaft 3 on one side. A conveyor belt 4 is sleeved on the outer wall of the multiple rotating shafts 3. When the servo motor 2 is started, the servo motor 2 drives the rotating shaft 3 on one side to rotate. The rotating shafts 3 on both sides support the conveyor belt 4. During the rotation of the rotating shaft 3 on one side, the conveyor belt 4 is driven to rotate, causing the packaging bag placed on the conveyor belt 4 to move to one side.

[0025] A first hydraulic cylinder 5 is fixedly connected to the center of the upper end face of the bracket 1. A push plate 6 is fixedly connected to the output end of the first hydraulic cylinder 5. The first hydraulic cylinder 5 extends and pushes the push plate 6 to move backward, thus pushing the packaging bag backward.

[0026] A base plate 12 is fixedly connected to the upper center of the front end of the frame 7. A gantry frame 13 is fixedly connected to the upper surface of the frame 7 at the rear end of the base plate 12. An extension frame 15 is fixedly connected to the center of the front end of the gantry frame 13. A third hydraulic cylinder 17 is fixedly connected to the center of the upper surface of the extension frame 15. The output end of the third hydraulic cylinder 17 passes through the upper surface of the extension frame 15 and extends to the lower end of the extension frame 15. A heat-sealing structure is fixedly connected to the end of the extension frame 15. A column 14 is fixedly connected to the center of the upper surface of the gantry frame 13. A hanging rod 16 is fixedly connected to the upper side of both sides of the column 14. The other ends of the two hanging rods 16 are fixedly connected to the center of the two side walls of the extension frame 15. A guide clamp 18 is fixedly connected to the upper surface of the frame 7 outside the air pipe 914. The third hydraulic cylinder 17 is then extended, and the third hydraulic cylinder 17 pushes the heat-sealing structure down to press on the surface of the bag.

[0027] Working principle: In use, the packaging bag containing the whole ham is placed on the conveyor belt 4, and the servo motor 2 is started. The servo motor 2 drives the rotating shaft 3 on one side to rotate. The rotating shafts 3 on both sides support the conveyor belt 4. During the rotation of the rotating shaft 3 on one side, the conveyor belt 4 is rotated, causing the packaging bag placed on the conveyor belt 4 to move to one side. After passing the bottom plate 12, the opening part moves to the top of the bottom plate 12, and the servo motor 2 stops. Then, the first hydraulic cylinder 5 is controlled to extend. The first hydraulic cylinder 5 pushes the push plate 6 to move backward, pushing the packaging bag backward. Then, the second hydraulic cylinder 11 is controlled to extend. The second hydraulic cylinder 11 pushes the slider 901 to move forward. The slider 901 pushes the baffle 906 and the air pipe 914 to move forward, inserting the two support rods 908 and the air pipe 914 into the inside of the bag. The double-headed cylinder 909 is controlled to extend. The two output ends of the double-headed cylinder 909 push the two extension columns 910 to move to both sides, thereby driving the two support rods 908 to move to both sides, so that the sealing position is flattened and the opening position is not uneven.

[0028] Then, the third hydraulic cylinder 17 is extended, pushing the heated sealing structure down onto the bag surface. The fourth hydraulic cylinder 905 is contracted, driving the piston plug 912 to move backward, drawing air out of the bag through the air pipe 914. The second hydraulic cylinder 11 is then contracted, driving the air pipe 914 to be drawn backward. During the drawing process, the heated sealing structure is energized to heat and seal the bag. This is an existing technical solution in the existing sealing structure, and will not be elaborated further here.

[0029] After sealing, the third hydraulic cylinder 17 is controlled to retract, driving the heated sealing structure to move upward. Then, the fourth hydraulic cylinder 905 is controlled to extend, pushing the piston plug 912 forward to blow out air. During the blowing process, oil is intercepted by the oil-blocking cloth 916, and the air is discharged. During the air intake process, the oil-blocking cloth 916 and the grid 917 rotate inside the storage tank 915 with the airflow, making it easier for oil and impurities in the airflow to enter the piston cylinder 904. During the air exhaust process, the airflow pushes the oil-blocking cloth 916 and the grid 917 to squeeze inside the storage tank 915, preventing impurities and oil from being discharged. Due to their own weight, the oil and impurities enter the storage tank 1004 through the connecting pipe 1005.

[0030] Then, control the fifth hydraulic cylinder 1002 to retract, and the output end of the fifth hydraulic cylinder 1002 moves away from the storage tank 1004. Then, pull out the storage tank 1004 through the handle 1006 to facilitate cleaning of oil and impurities. After cleaning, insert the storage tank 1004 into the box body 1001, start the fifth hydraulic cylinder 1002, and the output end of the fifth hydraulic cylinder 1002 pushes the storage tank 1004 towards the box body 1001, so that the extension ring 1007 squeezes the sealing gasket 1008 to increase the sealing performance.

[0031] The equipment includes a control panel, which enables the equipment to be started and controlled through a human-machine interface and an electrical control system. The input signal processing converts the operator's instructions into electrical signals, and the output signal transmission transmits the control signals to each actuator to realize equipment control. It is a commonly used control system in existing vacuum packaging machines, and will not be described in detail here.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rapid vacuum packaging machine for whole hams, comprising a support frame (1), characterized in that: A frame (7) is fixedly connected to the upper part of the center of the rear end face of the bracket (1). A slide rail (8) is fixedly connected to the center of the rear end face of the frame (7). A second hydraulic cylinder (11) is fixedly connected to the center of the rear end face of the slide rail (8). The output end of the second hydraulic cylinder (11) passes through the rear end face of the slide rail (8) and extends into the interior of the slide rail (8). An air extraction structure (9) is fixedly connected to the end of the cylinder. The air extraction structure (9) includes a slider (901), an inclined surface (902) is provided at the front of the upper end face of the slider (901), an arc frame (903) is fixedly connected at the center of the upper end face of the inclined surface (902), a piston cylinder (904) is fixedly connected at the front end of the arc frame (903), a fourth hydraulic cylinder (905) is fixedly connected inside the arc frame (903), a piston plug (912) is fixedly connected at the output end of the fourth hydraulic cylinder (905), a material receiving structure (10) is fixedly connected at the lower center of the front end face of the piston cylinder (904), a pipe (913) is fixedly connected at the center of the front end face of the piston cylinder (904), and an air pipe (914) is fixedly connected at the front end of the pipe (913).

2. The rapid vacuum packaging machine for whole ham according to claim 1, characterized in that: A baffle (906) is fixedly sleeved on the outer wall of the air pipe (914). The baffle (906) is fixedly connected to the upper end face of the slider (901). A connecting seat (907) is fixedly connected to both ends of the front end face of the baffle (906). A support rod (908) is rotatably connected to the front end of each of the two connecting seats (907). A double-headed cylinder (909) is provided between the two support rods (908). An extension column (910) is fixedly connected to each of the two output ends of the double-headed cylinder (909). A groove (911) is opened at the center of the upper end face of each of the two extension columns (910). The two support rods (908) are respectively set inside the two grooves (911).

3. The rapid vacuum packaging machine for whole ham according to claim 1, characterized in that: A storage groove (915) is provided at the center of the front inner wall of the piston cylinder (904). A grid (917) is rotatably connected to the upper part of the storage groove (915). An oil-blocking cloth (916) is fixedly connected to the rear end face of the grid (917).

4. The rapid vacuum packaging machine for whole ham according to claim 1, characterized in that: The receiving structure (10) includes a mounting groove (1003), which is opened on the upper end face of the slider (901). A box (1001) is fixedly connected inside the mounting groove (1003). A storage box (1004) is provided at the center of one end face of the box (1001). The storage box (1004) passes through one side wall of the box (1001) and extends into the inside of the box (1001). A connecting pipe (1005) is fixedly connected at the center of the upper end face of the box (1001). The connecting pipe (1005) passes through the lower end face of the piston cylinder (904) and extends into the lower inner wall of the piston cylinder (904).

5. A rapid vacuum packaging machine for whole ham according to claim 4, characterized in that: An extension ring (1007) is fixedly sleeved on the outer wall of the storage box (1004) on one side of the box body (1001). A sealing gasket (1008) is fixedly connected to one end face of the extension ring (1007) near the extension ring (1007). A fifth hydraulic cylinder (1002) is fixedly connected to the lower inner wall of the mounting groove (1003) on the side of the storage box (1004) away from the box body (1001). A handle (1006) is fixedly connected to the upper center of the side wall of the storage box (1004) away from the box body (1001).

6. The rapid vacuum packaging machine for whole ham according to claim 1, characterized in that: Inside the bracket (1), a rotating shaft (3) is arranged horizontally and rotatably connected at the upper part. A servo motor (2) is fixedly connected to one side of the front end face of the bracket (1). The output end of the servo motor (2) passes through the front end face of the bracket (1) and extends into the interior of the bracket (1). The end of the servo motor (2) is fixedly connected to the rotating shaft (3) at one side. A conveyor belt (4) is sleeved on the outer wall of the multiple rotating shafts (3).

7. A rapid vacuum packaging machine for whole ham according to claim 1, characterized in that: A first hydraulic cylinder (5) is fixedly connected to the center of the upper end face of the bracket (1) near the front, and a push plate (6) is fixedly connected to the output end of the first hydraulic cylinder (5).

8. A rapid vacuum packaging machine for whole ham according to claim 1, characterized in that: A base plate (12) is fixedly connected to the upper part of the front center of the frame (7). A gantry frame (13) is fixedly connected to the upper surface of the rear end frame (7) of the base plate (12). An extension frame (15) is fixedly connected to the front center of the front surface of the gantry frame (13). A third hydraulic cylinder (17) is fixedly connected to the center of the upper surface of the extension frame (15). The output end of the third hydraulic cylinder (17) passes through the upper surface of the extension frame (15) and extends to the lower end of the extension frame (15). A heating and sealing structure is fixedly connected to the end. A column (14) is fixedly connected to the center of the upper surface of the gantry frame (13). A hanging rod (16) is fixedly connected to the upper part of both sides of the column (14). The other ends of the two hanging rods (16) are fixedly connected to the front center of both sides of the extension frame (15). A guide clamp (18) is fixedly connected to the upper surface of the outer frame (7) of the air pipe (914).

Images