Food packaging equipment for food processing

Abstract

The food packaging equipment for food processing comprises a packaging frame body, two transmission rollers are rotationally installed in the packaging frame body, a plurality of suction cup units are installed on a transmission belt of the transmission rollers at equal intervals, a feeding roller is arranged in an n-shaped frame of the packaging frame body, and a pressing roller mechanism is installed in the n-shaped frame; a lifting auxiliary mechanism, a pressing and cutting mechanism, a discharging mechanism and a top packaging pressing roller are further arranged in the n-shaped frame. A to-be-packaged packaging bag passes through the feeding roller and then is pressed and adsorbed to the suction cup unit of the transmission belt under the action of the pressing roller mechanism, after the open end of the packaging bag is opened through the lifting auxiliary mechanism and the pressing and cutting mechanism, to-be-packaged food is put into the packaging bag, and the open end of the packaging bag is subjected to heat packaging through the top packaging pressing roller; and meanwhile, the closed end of one packaging bag and the open end of the other packaging bag are cut off through the pressing and cutting mechanism again, the packaging operation of the single packaging bag can be completed, and high efficiency and practicability are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of food packaging devices, and in particular relates to food packaging equipment for food processing. Background Art

[0002] Using plastic packaging bags as packaging bags when packaging food is an existing widely used packaging method. By putting food into plastic packaging bags, external impurities such as dust and moisture can be prevented from invading the food bags, thereby avoiding affecting the quality of the food in the bags.

[0003] Most of the existing packaging devices are based on the cooperation of a hot pressing mechanism and a feeding mechanism. When in use, the space inside the packaging bag cannot be accurately adjusted for packaging, thereby affecting the use efficiency of the packaging bag during the packaging process.

[0004] Based on this, a food packaging device for food processing is proposed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a food packaging device for food processing in view of the deficiencies of the above-mentioned prior art, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a food packaging equipment for food processing, comprising a packaging frame, two transmission rollers are rotatably installed in the packaging frame, a transmission belt is wound around the outside of the transmission roller, and a plurality of suction cup units are installed at equal intervals on the outer surface of the transmission belt, an opening is arranged at the top of the packaging frame, a shaped frame is fixed on the outside of the opening of the packaging frame, a feed roller is arranged near the feed inlet in the shaped frame, a pressure roller mechanism is installed on the top surface of the shaped frame near the feed roller, and a lifting auxiliary mechanism, a pressing and cutting mechanism, a material discharge mechanism and a top packaging pressure roller are also arranged in the shaped frame;

[0007] The packaging frame is also rotatably provided with a feeding auxiliary wheel on one side close to the feeding roller. The open end of the packaging bag to be packaged is sent to the feeding roller after passing through the feeding auxiliary wheel. After passing through the feeding roller, the suction cup unit adsorbed on the transmission belt is pressed by the pressing roller mechanism. The open end of the packaging bag is opened by the cooperation of the lifting auxiliary mechanism and the pressing and cutting mechanism. The suction force of part of the packaging bag is cancelled by the cooperation of the suction cup unit. The food to be packaged is loaded into the packaging bag by the discharging mechanism. After the closed end of a single packaging bag is filled, the open end of the packaging bag is heat-sealed by the top packaging pressing roller. At the same time, the closed end of the packaging bag and the open end of another packaging bag are cut apart by the pressing and cutting mechanism again. Thus, the packaging operation of a single packaging bag can be completed.

[0008] As a further explanation of the present invention, the suction cup unit is composed of eight small electrically-controlled suction cups arranged in two columns and four rows. Each electrically-controlled suction cup is independently switch-controlled. The four electrically-controlled suction cups in the middle constitute a middle suction unit, and the four electrically-controlled suction cups on both sides constitute an edge suction unit.

[0009] As a further explanation of the present invention, the pressure roller mechanism is composed of five pressure roller frames, and the pressure roller frames include a pressure roller lifting cylinder, a connecting frame and a flexible pressure roller. The top end of the pressure roller lifting cylinder is fixed to the inner top surface of the shaped frame, and the bottom end of the telescopic shaft of the pressure roller lifting cylinder is fixed with a connecting frame. A flexible pressure roller is rotatably connected in the connecting frame. The flexible pressure roller is specifically a rubber wheel, and anti-slip grooves are arranged on the outer surface of the flexible pressure roller.

[0010] As a further explanation of the present invention, the layout of the five pressing roller frames of the pressing roller mechanism corresponds to the middle adsorption unit and the edge adsorption unit of the suction cup unit, that is, the first pressing roller frame is arranged in the middle of the feed port, the middle two pressing roller frames are arranged in the top surface area of ​​the protrusion frame corresponding to the middle adsorption unit, and the two pressing roller frames at the tail end are arranged in the top surface area of ​​the protrusion frame corresponding to the edge adsorption unit.

[0011] As a further explanation of the present invention, the lifting auxiliary mechanism includes a transverse screw module, a lifting cylinder, a lifting rod and a lifting head. The transverse screw module is fixed on the top surface of the cam frame, and a vertical lifting cylinder is connected inside the transverse screw module. A lifting rod is vertically installed at the bottom end of the telescopic shaft of the lifting cylinder, and a lifting head arranged obliquely downward is installed at the front end of the lifting rod.

[0012] As a further explanation of the present invention, the clamping and cutting mechanism includes an adjusting cylinder, a transverse frame, a clamping wheel and a working head. The adjusting cylinder is fixed to the top surface of the profile frame, and a transverse frame is fixed to the bottom end of the telescopic shaft of the adjusting cylinder. A clamping wheel is fixed in the transverse frame. The two outer sides of the transverse frame are also rotatably connected to electric steering shafts, and the working head is installed on the outer sides of the two electric steering shafts.

[0013] As a further explanation of the present invention, the length of the working head is greater than the radius of the clamping wheel, and a nitrogen flushing pipe is installed on the outside of each working head. The nitrogen flushing pipe is connected to a nitrogen bottle through a pipeline, and a horizontal cutting head is fixed between the ends of the two working heads.

[0014] As a further illustration of the present invention, food to be packaged is placed in the discharge mechanism, and an electric lifting discharge pipe is installed at the bottom end of the discharge mechanism.

[0015] As a further explanation of the present invention, the top packaging roller is movably installed in the molded frame through a packaging cylinder, and a bottom packaging roller is also installed in the packaging frame below the top packaging roller. The top packaging roller and the bottom packaging roller are used together to complete the hot packaging operation of the packaging bag.

[0016] As a further explanation of the present invention, the feed auxiliary wheel is installed at the feed end of the packaging frame through an oblique rod, the extension plate is fixed on the packaging frame near the discharge end, and the tail end of the packaging frame is also equipped with a guide roller and a guide plate.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] The present invention has two transmission rollers rotatably installed in the packaging frame, a transmission belt is wound around the outside of the transmission roller, and a plurality of suction cup units are installed at equal intervals on the outer surface of the transmission belt, a shaped frame is fixed on the outside of the opening of the packaging frame, a feed roller is arranged near the feed inlet in the shaped frame, a pressing roller mechanism is installed near the feed roller on the top surface of the shaped frame, and a lifting auxiliary mechanism, a pressing and cutting mechanism, a material discharge mechanism and a top packaging pressing roller are also arranged in the shaped frame; a feeding auxiliary wheel is rotatably installed on one side of the packaging frame near the feed roller, and the open end of the packaging bag to be packaged is sent to the feed roller after passing through the feed auxiliary wheel, and the bag is put into the packaging frame after passing through the feed roller. The suction cup unit adsorbed on the transmission belt is pressed by the pressing roller mechanism, and the open end of the packaging bag is opened through the cooperation of the lifting auxiliary mechanism and the pressing and cutting mechanism. Then, the packaging bag is sent to the extension plate of the packaging frame through the transmission belt, and the suction cup unit is cooperated to cancel the adsorption force of part of the packaging bag. The food to be packaged is loaded into the packaging bag by using the discharge mechanism. After the closed end of a single packaging bag is filled, the open end of the packaging bag is heat-sealed by the top sealing roller, and the closed end of the packaging bag and the open end of another packaging bag are cut apart by the pressing and cutting mechanism again, so that the packaging operation of a single packaging bag can be completed, which is efficient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 It is a top view of the layout structure of the suction cup unit of the present invention;

[0021] Figure 3 This is a bottom view of the layout structure of the pressing roller mechanism of the present invention;

[0022] Figure 4 This is a top view of the lifting rod structure of the present invention;

[0023] Figure 5 It is a schematic diagram of the pressing and cutting mechanism of the present invention;

[0024] Figure 6It is a schematic diagram of the packaging bag of the present invention in an unused state.

[0025] Description of reference numerals:

[0026] 1-packaging frame; 11-transmission roller; 12-transmission belt; 13-oblique rod; 14-feeding auxiliary wheel; 15-extension plate; 16-guide roller; 17-guide plate; 2-suction cup unit; 21-middle adsorption unit; 22-edge adsorption unit; 3-moulding frame; 31-feeding roller; 4-pressing roller mechanism; 41-pressing roller lifting cylinder; 42-connecting frame; 43-flexible pressing roller; 5-lifting auxiliary mechanism; 51-transverse screw Module; 52-lifting cylinder; 53-lifting rod; 54-lifting head; 6-pressing and cutting mechanism; 61-adjusting cylinder; 62-transverse frame; 63-pressing wheel; 64-electric steering shaft; 65-working head; 66-nitrogen flushing and sweeping pipe; 67-cutting head; 7-discharging mechanism; 71-electric lifting and discharging pipe; 81-top packaging roller; 82-bottom packaging roller; 9-packaging bag; 91-open end; 92-closed end. DETAILED DESCRIPTION

[0027] 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.

[0028] like Figure 1-6 As shown, the present invention provides a technical solution: a food packaging equipment for food processing, comprising a packaging frame 1, wherein two transmission rollers 11 are rotatably installed in the packaging frame 1, and a transmission belt 12 is wound around the outer side of the transmission roller 11, and a plurality of suction cup units 2 are evenly spacedly installed on the outer surface of the transmission belt 12, and the suction cup unit 2 is composed of eight small electrically controlled suction cups arranged in two columns and four rows, each of the electrically controlled suction cups is independently switched, the four electrically controlled suction cups in the middle constitute a middle suction unit 21, and the four electrically controlled suction cups on both sides constitute a side suction unit 22, the middle area of ​​the packaging bag 9 can be adsorbed by the middle suction unit 21, and the side areas of the packaging bag 9 can be adsorbed by the side suction unit 22, so that the packaging bag 9 can be accurately fixed during the food packaging process to avoid the formation of a packaging blind area, thereby improving the utilization of the internal packaging area of ​​the packaging bag 9.

[0029] The packaging frame 1 is provided with an opening at the top, and a shaped frame 3 is fixed on the outside of the opening of the packaging frame 1. A feed roller 31 is provided in the shaped frame 3 near the feed port. The feed roller 31 is two active rollers that cooperate with each other. The feed auxiliary wheel 14 is installed at the feed end of the packaging frame 1 through the oblique rod 13, and is used to cooperate with the feeding of the packaging bag 9.

[0030] A pressure roller mechanism 4 is installed on the inner top surface of the profile frame 3 near the feed roller 31, and the pressure roller mechanism 4 is composed of five pressure roller frames, and the pressure roller frames include a pressure roller lifting cylinder 41, a connecting frame 42 and a flexible pressure roller 43. The top end of the pressure roller lifting cylinder 41 is fixed to the inner top surface of the profile frame 3, and the bottom end of the telescopic shaft of the pressure roller lifting cylinder 41 is fixed with a connecting frame 42. A flexible pressure roller 43 is rotatably connected in the connecting frame 42. The flexible pressure roller 43 is specifically a rubber wheel, and anti-slip grooves are provided on the outer surface of the flexible pressure roller 43.

[0031] The arrangement of the five pressing roller frames of the pressing roller mechanism 4 corresponds to the middle adsorption unit and the edge adsorption unit of the suction cup unit 2, that is, the first pressing roller frame is arranged in the middle of the feed port, and is used for the middle positioning of the packaging bag 9 during use; the two middle pressing roller frames are arranged in the top surface area of ​​the shaped frame 3 corresponding to the middle adsorption unit, and the middle area of ​​the packaging bag 9 can be pressed and adsorbed in the middle adsorption unit of the suction cup unit 2 through the middle pressing roller frame, so that the middle part can be adsorbed and fixed first; the two pressing roller frames at the tail end are arranged in the top surface area of ​​the shaped frame 3 corresponding to the edge adsorption unit, and the pressing roller frames at the tail end can press and adsorb the two end areas of the packaging bag 9 in the edge adsorption unit of the suction cup unit 2, so that an adsorption connection mode between the packaging bag 9 in the middle and then the two sides and the transmission belt 12 can be formed, so as to avoid wrinkles or bulges in the middle area of ​​the packaging bag 9 that affect the use of food packaging in the later stage.

[0032] The mold frame 3 is also provided with a lifting auxiliary mechanism 5, a pressing and cutting mechanism 6, a material discharge mechanism 7 and a top packaging roller 81;

[0033] The lifting auxiliary mechanism 5 includes a transverse screw module 51, a lifting cylinder 52, a lifting rod 53 and a lifting head 54. The transverse screw module 51 is fixed on the inner top surface of the profile frame 3, and a vertical lifting cylinder 52 is connected inside the transverse screw module 51. A lifting rod 53 is vertically installed at the bottom end of the telescopic shaft of the lifting cylinder 52, and a lifting head 54 arranged obliquely downward is installed at the front end of the lifting rod 53. The spatial position of the lifting head 54 can be adjusted by the transverse screw module 51 and the lifting cylinder 52, and then the two sides of the packaging bag 9 can be lifted up and opened by the lifting head 54, so as to facilitate food packaging.

[0034] The clamping and cutting mechanism 6 includes an adjusting cylinder 61, a transverse frame 62, a clamping wheel 63 and a working head 65. The adjusting cylinder 61 is fixed to the inner top surface of the molding frame 3, and a transverse frame 62 is fixed to the bottom end of the telescopic shaft of the adjusting cylinder 61. A clamping wheel 63 is fixed in the transverse frame 62. The clamping wheel 63 is used to clamp the closed end 92 of the rear end of the packaging bag 9 before cutting to facilitate accurate cutting.

[0035] The two outer sides of the transverse frame 62 are also rotatably connected with electric steering shafts 64, and the working head 65 is installed on the outer sides of the two electric steering shafts 64. The length of the working head 65 is greater than the radius of the clamping wheel 63, and a nitrogen flushing pipe 66 is also installed on the outer side of each working head 65. The nitrogen flushing pipe 66 is connected to a nitrogen bottle through a pipeline. The nitrogen flushing pipe 66 can perform nitrogen flushing operation on the packaging bag 9 after the lifting part is unfolded. Nitrogen flushing can exchange the air in the packaging bag 9, thereby improving the packaging quality.

[0036] A transverse cutting head 67 is fixed between the ends of the two working heads 65 , and the packaging bag 9 can be cut by the cutting head 67 and the extension plate 15 .

[0037] The food to be packaged is placed in the discharge mechanism 7 , and an electric lifting discharge pipe 71 is installed at the bottom end of the discharge mechanism 7 .

[0038] The top packaging roller 81 is movably installed in the mold frame 3 through the packaging cylinder, and the bottom packaging roller 82 is also installed below the top packaging roller 81 in the packaging frame 1. The top packaging roller 81 and the bottom packaging roller 82 cooperate to complete the heat packaging operation of the packaging bag 9.

[0039] In summary, when in use, the open end 91 of the packaging bag 9 to be packaged is sent to the feed roller 31 after passing through the feed auxiliary wheel 14, and after passing through the feed roller 31, it is pressed and adsorbed on the suction cup unit 2 of the transmission belt 12 under the action of the pressure roller mechanism 4, wherein two suction cup units 2 fix an independent unit of the packaging bag 9, and the first pressure roller frame of the large pressure roller mechanism 4 is used for the middle positioning of the packaging bag 9 during use, and the middle area of ​​the packaging bag 9 can be pressed and adsorbed in the middle adsorption unit of the suction cup unit 2 through the middle pressure roller frame, so that the middle part can be adsorbed and fixed first, and the two end areas of the packaging bag 9 can be pressed and adsorbed in the edge adsorption units of the suction cup unit 2 through the pressure roller frame at the tail end, so that an adsorption connection mode between the packaging bag 9 and the transmission belt 12 can be formed first in the middle and then on the two sides, so as to avoid wrinkles or bulges in the middle area of ​​the packaging bag 9 that affect the use of food packaging in the later stage;

[0040] After the lifting auxiliary mechanism 5 cooperates with the pressing and cutting mechanism 6 to open the open end 91 of the packaging bag 9, the electric control suction cup of the edge adsorption unit is disconnected when the open end 91 is opened, so that the edge of the packaging bag 9 can be opened naturally;

[0041] The food is sent to the extension plate 15 of the packaging frame 1 through the transmission belt 12, the suction force of the suction cup unit 2 of the independent unit for fixing the packaging bag 9 at the front end is cancelled, and the food to be packaged is put into the packaging bag 9 by using the electric lifting discharge pipe 71 of the discharge mechanism 7;

[0042] After the closed end 92 of a single independent unit of the packaging bag 9 is filled, the open end 91 of the packaging bag 9 is heat-sealed using the top sealing roller 81, and the closed end 92 of the packaging bag 9 is cut from the open end 91 of another packaging bag 9 by the pressing and cutting mechanism 6 again, thereby completing the packaging operation of the single packaging bag 9.

[0043] The extension plate 15 is fixed on the packaging frame 1 near the discharge end, and the tail end of the packaging frame 1 is also equipped with a guide roller 16 and a guide plate 17. After the packaging is completed, the independent unit of the packaging bag 9 is sent to the collection bin for collection by the guide roller 16 and the guide plate 17, completing the entire food packaging operation.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] 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 food packaging device for food processing, characterized in that: The invention comprises a packaging frame (1), wherein two transmission rollers (11) are rotatably mounted inside the packaging frame (1), a transmission belt (12) is wound around the outside of the transmission roller (11), and a plurality of suction cup units (2) are evenly spacedly mounted on the outer surface of the transmission belt (12); an opening is arranged at the top of the packaging frame (1), a shaped frame (3) is fixed outside the opening of the packaging frame (1), a feed roller (31) is arranged near the feed inlet inside the shaped frame (3), a pressure roller mechanism (4) is installed on the top surface of the shaped frame (3) near the feed roller (31), and a lifting auxiliary mechanism (5), a pressing and cutting mechanism (6), a material discharge mechanism (7) and a top packaging pressure roller (81) are also arranged inside the shaped frame (3); A feeding auxiliary wheel (14) is rotatably mounted on one side of the packaging frame (1) close to the feeding roller (31). The open end (91) of the packaging bag (9) to be packaged is sent to the feeding roller (31) after passing through the feeding auxiliary wheel (14). After passing through the feeding roller (31), the suction cup unit (2) adsorbed on the transmission belt (12) is pressed by the pressing roller mechanism (4). The open end (91) of the packaging bag (9) is opened by the cooperation of the lifting auxiliary mechanism (5) and the pressing and cutting mechanism (6). The bag is then sent to the extension belt (12) of the packaging frame (1) through the transmission belt (12). On the extension plate (15), the suction cup unit (2) is cooperated to cancel the adsorption force of part of the packaging bag (9), and the food to be packaged is loaded into the packaging bag (9) by using the discharge mechanism (7). After the closed end (92) of a single packaging bag (9) is filled, the open end (91) of the packaging bag (9) is heat-sealed by the top sealing roller (81), and at the same time, the closed end (92) of the packaging bag (9) and the open end (91) of another packaging bag (9) are cut apart by the pressing and cutting mechanism (6) again, thereby completing the sealing operation of the single packaging bag (9).

2. A food packaging device for food processing according to claim 1, characterized in that: The suction cup unit (2) is composed of eight small electrically controlled suction cups arranged in two rows and four columns, each electrically controlled suction cup is independently switch-controlled, the four electrically controlled suction cups in the middle constitute a middle suction unit, and the four electrically controlled suction cups on both sides constitute a side suction unit.

3. A food packaging device for food processing according to claim 1, characterized in that: The pressing roller mechanism (4) is composed of five pressing roller frames, and the pressing roller frames include a pressing roller lifting cylinder (41), a connecting frame (42) and a flexible pressing roller (43). The top end of the pressing roller lifting cylinder (41) is fixed to the inner top surface of the shaped frame (3). The connecting frame (42) is fixed to the bottom end of the telescopic shaft of the pressing roller lifting cylinder (41). The flexible pressing roller (43) is rotatably connected in the connecting frame (42). The flexible pressing roller (43) is specifically a rubber wheel, and anti-slip grooves are arranged on the outer surface of the flexible pressing roller (43).

4. A food packaging device for food processing according to claim 2, characterized in that: The arrangement of the five pressing roller frames of the pressing roller mechanism (4) corresponds to the middle adsorption unit and the edge adsorption unit of the suction cup unit (2), that is, the first pressing roller frame is arranged in the middle of the feed inlet, the two middle pressing roller frames are arranged in the top surface area of ​​the embossing frame (3) corresponding to the middle adsorption unit, and the two pressing roller frames at the rear end are arranged in the top surface area of ​​the embossing frame (3) corresponding to the edge adsorption unit.

5. A food packaging device for food processing according to claim 1, characterized in that: The lifting auxiliary mechanism (5) includes a transverse screw module (51), a lifting cylinder (52), a lifting rod (53) and a lifting head (54). The transverse screw module (51) is fixed on the inner top surface of the mold frame (3). A vertical lifting cylinder (52) is connected inside the transverse screw module (51). A lifting rod (53) is vertically installed at the bottom end of the telescopic shaft of the lifting cylinder (52). The front end of the lifting rod (53) is installed with a lifting head (54) arranged obliquely downward.

6. A food packaging device for food processing according to claim 1, characterized in that: The clamping and cutting mechanism (6) comprises an adjusting cylinder (61), a transverse frame (62), a clamping wheel (63) and a working head (65); the adjusting cylinder (61) is fixed to the inner top surface of the mold frame (3), and a transverse frame (62) is fixed to the bottom end of the telescopic shaft of the adjusting cylinder (61); a clamping wheel (63) is fixed inside the transverse frame (62); the two outer sides of the transverse frame (62) are also rotatably connected to electric steering shafts (64), and the working head (65) is installed on the outer sides of the two electric steering shafts (64).

7. A food packaging device for food processing according to claim 6, characterized in that: The length of the working head (65) is greater than the radius of the clamping wheel (63), and a nitrogen flushing pipe (66) is installed on the outside of each working head (65), and the nitrogen flushing pipe (66) is connected to a nitrogen bottle through a pipeline. A transverse cutting head (67) is also fixed between the ends of the two working heads (65).

8. The food packaging equipment for food processing according to claim 1, characterized in that: The food to be packaged is placed in the discharge mechanism (7), and an electric lifting discharge pipe (71) is installed at the bottom end of the discharge mechanism (7).

9. A food packaging device for food processing according to claim 1, characterized in that: The top packaging roller (81) is movably installed in the mold frame (3) through a packaging cylinder, and a bottom packaging roller (82) is also installed in the packaging frame (1) below the top packaging roller (81). The top packaging roller (81) and the bottom packaging roller (82) are used in combination to complete the heat packaging operation of the packaging bag (9).

10. The food packaging equipment for food processing according to claim 1, characterized in that: The feed auxiliary wheel (14) is installed at the feed end of the packaging frame (1) through the oblique rod (13), the extension plate (15) is fixed on the packaging frame (1) near the discharge end, and the tail end of the packaging frame (1) is also installed with a guide roller (16) and a guide plate (17).

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