CN111282946A - A packaging bag cutting and scrap recycling system - Google Patents

Abstract

The invention relates to the technical field of packaging, and particularly discloses a scrap recovery system for cutting edges of packaging bags, which comprises a suction head, a feeding pipeline, a collecting box, an air inlet and outlet pipeline and an air supply device which are sequentially connected, wherein a discharge opening is formed in the front side of the collecting box, the top of the collecting box is communicated with the air inlet and outlet pipeline, and the rear side of the collecting box is communicated with the feeding pipeline; the inner cavity of the collecting box is provided with a filter plate; the device also comprises a linkage device, a power assembly and a connecting rod; when the cover plate is opened, the linkage device drives one end of the filter plate close to the discharge port to rotate towards the top of the collecting box, so that the air inlet and outlet pipeline and the feeding pipeline are positioned at the same side of the filter plate; when the cover plate is closed, the linkage device drives one end of the filter plate close to the discharge port to rotate towards the bottom of the collecting box, so that the air inlet and outlet pipeline and the feeding pipeline are positioned at the upper side and the lower side of the filter plate. This recovery system has improved the stability and the high efficiency of side cut waste recovery effectively, and labour saving and time saving has accelerated waste recovery's efficiency, has promoted waste recovery effect and production machining efficiency.

Description

A packaging bag cutting and scrap recycling system

technical field

The invention relates to the technical field of packaging, in particular to a recycling system for cutting and leftovers of packaging bags.

Background technique

Wet wipes are made of wet-strength, soft-fiber and high-permeability substrates. They are folded, humidified, and packaged to make disposable cleaning and sanitary products. Fewer cleaning supplies. In recent years, with the improvement of people's living standards, wet wipes products are developing in multiple categories and applicable ways.

In order to ensure the humidity of wet wipes, the wet wipe packaging bag needs to be sealed. The main packaging forms of wet wipes are divided into the following two types: one is single-piece independent packaging; the other is multi-piece combined packaging. The multi-piece packaging has been affirmed by most consumers, and the design of the multi-piece wet wipes is more user-friendly and economical. During the production process, after the wet wipes are pushed into the packaging bag, the packaging bag will undergo processes such as sealing and cutting, which will produce a large amount of leftovers. The existing packaging equipment is generally equipped with a collection box under the part where the scrap is generated or converted from a vacuum cleaner. The absorption capacity is limited, and the waste is still easy to accumulate in the filter screen and the collection box, so that the waste cannot be blown out smoothly. The efficiency and effect of waste recycling are improved, and it is inconvenient for people to carry out subsequent processing of waste.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to overcome the defects in the prior art, and to provide a system for recycling the cutting and leftovers of packaging bags.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions:

A packaging bag cutting and scrap recycling system, comprising a suction head, a feeding pipe, a collection box, an air inlet and outlet pipe and an air supply device connected in sequence, a discharge port is formed on the front side of the collection box, and a collection box is provided on the front side. There is a cover plate matched with the discharge port, and the bottom of the collecting box is inclined; the top of the collecting box is connected with the air inlet and outlet pipes, and the rear side of the collecting box is connected with the feeding pipe; The cavity is provided with a filter plate, the filter plate is provided with a plurality of filter holes, and the two sides of the filter plate are rotatably connected to the two opposite inner walls of the collection box;

It also includes a linkage device, a power assembly and a connecting rod. The linkage device is respectively connected with the filter plate and the cover plate. The two linkage devices are symmetrically arranged on the left and right sides of the collection box, and the two ends of the connecting rod are respectively connected to the a linkage, the output end of the power assembly is connected with the connecting rod;

When the cover plate is opened, the linkage device drives the end of the filter plate close to the discharge port to rotate towards the top of the collection box, so that the air inlet and outlet pipes and the feed pipe are located on the same side of the filter plate; when the cover plate is closed, the linkage device drives the filter plate closer to One end of the discharge port rotates toward the bottom of the collection box, so that the air inlet and outlet pipes and the feed pipes are located on the upper and lower sides of the filter plate.

Further, the linkage device includes a connected transverse driving mechanism and a vertical driving mechanism, the transverse driving mechanism is arranged on the outer wall of the collection box, and the two ends of the transverse driving mechanism are respectively connected with the cover plate and the connecting rod; The driving mechanism is arranged on the inner wall of the collection box, and the vertical driving mechanism is connected with the filter plate.

Further, the transverse drive mechanism includes a first rack and a first gear, the first rack is meshed with the first gear for transmission, and both ends of the first rack are respectively connected with the cover plate and the connecting rod;

The vertical drive mechanism includes a second rack and a second gear, the second rack and the second gear are engaged for transmission, the first gear and the second gear are coaxially mounted on the side plate of the collection box, the The top of the two racks is matched with the filter plate to form a ball pair.

Further, it also includes a first slide rail and a second slide rail, the first slide rail is laterally installed on the outer wall of the collection box, and the first rack is slidably fitted on the first slide rail; the second slide rail It is vertically installed on the inner wall of the collection box, and the second rack is slidably fitted on the second sliding rail.

Further, the filter plate includes a frame and a filter screen, the filter screen is arranged in the frame, the two sides of the frame are respectively connected to the inner wall of the collection box through a rotating column, and the circumferential side wall of the frame is provided with brushes. .

Further, it also includes an upper stopper and a lower stopper, the upper stopper is installed on the inner wall of the front side of the collection box and is close to the top of the collection box; the two lower stoppers are symmetrically arranged on the inner wall of the rear side of the collection box and are Below the feed pipe.

Further, the cover plate is a rubber plate, the top of the cover plate is fixed on the collecting box, the cover plate is fixed with a rigid strip, and the two ends of the rigid strip are respectively connected with a first rack.

Further, an air direction converter is also included, and the two partition plates in the inner cavity of the air direction converter are divided into a first chamber, a second chamber and a third chamber, and an air hole is opened on the partition plate, The first chamber is provided with an air inlet interface and an air outlet, the second chamber is provided with a transmission interface, and the third chamber is provided with an air outlet interface and an air inlet;

It also includes a connecting shaft arranged in the inner cavity of the air direction converter, the connecting shaft can move along the length direction of the air direction converter, and the connecting shaft is provided with a first valve plate and a second valve plate that can close the air hole , the first valve plate is located in the first chamber, and the second valve plate is located in the second chamber;

The transmission interface and the collection box are connected by an air inlet and outlet duct, the air inlet interface and the air supply device are connected by a blowing duct, and the air outlet interface and the air supply device are connected by an air suction duct.

Further, a drive assembly is also included, and one end of the connecting shaft extends out of the air inlet and is connected to the output end of the drive assembly.

The beneficial effects of the present invention are as follows: the present invention discloses a packaging bag cutting and leftover material recovery system. By arranging a rotatable filter plate and a linkage device in the collection box, when the linkage device drives the cover plate to close, the filter plate is simultaneously driven. The end close to the discharge port is turned to the bottom of the collection box, so that the air inlet and outlet pipes and the feed pipes are located on the upper and lower sides of the filter plate. At this time, the air supply device sucks air, so that the trimmed waste is sucked into the lower part of the filter plate through the feed pipe. In the collection box, to prevent waste from entering the air inlet and outlet ducts, causing equipment blockage. When the linkage device drives the cover to open, it simultaneously drives the end of the filter plate close to the discharge port to rotate towards the top of the collection box, so that the air inlet and outlet pipes and the feed pipe are located on the same side of the filter plate. The trimmed waste in the box and adhering to the filter plate is blown out of the collection box.

Through the cooperation of the linkage device, the filter plate and the air direction converter, the collection process can effectively isolate and prevent the trimming waste from entering the air inlet and outlet ducts without affecting the collection effect of the trimming waste; The waste is blown into the feed line. The recycling system effectively improves the stability and efficiency of trimming waste recycling, saves time and effort, accelerates the efficiency of waste recycling, and improves the waste recycling effect and production and processing efficiency.

Description of drawings

In order to illustrate the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that are required to be used in the description of the specific embodiments or the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. In the drawings, each element or section is not necessarily drawn to actual scale.

Fig. 1 is the structural representation of a kind of packaging bag cutting and scrap recycling system of the present invention;

Fig. 2 is the structural representation that the inlet and outlet air ducts and the feed ducts in the collection box are located on the lower and lower sides of the filter plate;

Fig. 3 is the structural representation that the air inlet and outlet pipes and the feed pipes in the collection box are located on the same side of the filter plate;

Fig. 4 is the A-A cross-sectional schematic diagram in Fig. 2;

Fig. 5 is the structural representation of filter plate;

Fig. 6 is the structural representation of connecting rod;

Fig. 7 is the schematic diagram of the air direction converter in the suction state (negative pressure, collecting waste);

Fig. 8 is a schematic diagram of the air flow into the converter in the blowing state (positive pressure, waste discharge).

Reference number:

1-collection box, 11-discharge port, 12-cover plate, 121-hard strip, 13-filter plate, 131-frame, 132-filter screen, 133-rotating column, 14-upper block, 15-lower block block, 16-accommodating cover, 2-air inlet and outlet duct, 3-feeding duct, 4-linkage device, 41-transverse drive mechanism, 411-first rack, 412-first gear, 42-vertical drive mechanism, 421-second rack, 422-second gear, 43-shaft, 44-first slide, 45-second slide, 5-power assembly, 6-connecting rod, 7-suction head, 8-supply Air device, 9-air direction converter, 91-partition plate, 911-air hole, 92-first chamber, 921-inlet port, 922-air vent, 93-second chamber, 931-transmission port, 94-Third chamber, 941-Air outlet, 942-Air inlet, 95-Connecting shaft, 96-First valve plate, 97-Second valve plate, 98-Air suction duct, 99-Blowing duct, 10- drive components.

Detailed ways

The present invention will be further described in detail below in conjunction with the embodiments.

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

Referring to FIG. 1 , it is a recycling system for cutting and leftovers of packaging bags according to the present invention. The recycling system includes a suction head 7, a feeding pipe 3, a collection box 1, an air inlet and outlet pipe 2 and an air supply device 8 connected in sequence. The front side of the box 1 is formed with a discharge port 11, the collection box 1 is provided with a cover plate 12 that cooperates with the discharge port 11, the cavity bottom of the collection box 1 is arranged obliquely; , the rear side of the collection box 1 is communicated with the feed pipe 3 . The inner cavity of the collection box 1 is provided with a filter plate 13, the filter plate 13 is provided with a number of filter holes, and the two sides of the filter plate 13 are rotatably connected to the two opposite inner walls of the collection box 1; it also includes a linkage device 4 and a power assembly 5. and connecting rod 6, the linkage device 4 is respectively connected with the filter plate 13 and the cover plate 12, the two linkage devices 4 are symmetrically arranged on the left and right sides of the collection box 1, the two ends of the connecting rod 6 are respectively connected to a linkage device 4, the power The output end of the assembly 5 is connected with the connecting rod 6 . When the cover plate 12 is opened, the linkage 4 drives the end of the filter plate 13 close to the discharge port 11 to rotate toward the top of the collection box 1, so that the air inlet and outlet pipes 2 and the feed pipe 3 are located on the same side of the filter plate 13; when the cover plate 12 When closed, the linkage device 4 drives the end of the filter plate 13 close to the discharge port 11 to rotate toward the bottom of the collection box 1 , so that the air inlet and outlet pipes 2 and the feed pipe 3 are located on the upper and lower sides of the filter plate 13 .

The packaging bag cutting and scrap recycling system is used to collect the waste generated by the packaging bag sealing and cutting station (not shown in the figure), wherein the recycling system mainly includes a suction head 7, a feeding pipeline 3, and a collection box 1. , the inlet and outlet air duct 2 and the air supply device 8 these five parts. The above-mentioned suction head 7 is installed at the sealing and cutting station, and the cut waste enters the feed pipe 3 through the suction port on the suction head 7, and then enters the collection box 1 through the feed pipe 3. The collection box 1 is provided with a discharge port 11 for discharging waste materials. In order to ensure the airtightness of the entire recycling system when the air supply device 8 operates to generate negative pressure, the discharge port 11 has a cover 12 that can be opened and closed.

The air supply device 8 in the present invention has the functions of suction and blowing. When the waste is collected, the air supply device 8 turns on the suction function to generate a negative pressure airflow, so as to suck the waste into the collection box 1 . In order to prevent the waste in the collection box 1 from being sucked into the air supply device 8 through the air inlet and outlet ducts 2 and affecting the normal use of the equipment, the collection box 1 is provided with a filter plate 13 for filtering wastes, which is also for the air inlet and outlet ducts 2 and 2. The feed pipe 3 is separated to prevent waste materials from entering the air inlet and outlet pipes 2 .

When the waste is discharged from the collection box 1 , the air supply device 8 turns on the blowing function, so as to blow the waste out of the collection box 1 . In order to avoid the waste in the collection box 1 being blown into the feed pipe 3 again, resulting in incomplete recovery of the waste. Therefore, the above-mentioned filter plate 13 is rotatably installed in the collection box 1, and the filter plate 13 is driven to rotate through the linkage 4, the power assembly 5 and the connecting rod 6 to adjust the distance between the filter plate 13 and the feed pipe 3 and the air inlet and outlet pipes 2. position, so as to achieve the stability and efficiency of waste recycling, save time and effort, and speed up the efficiency of waste recycling. Specifically, the linkage device 4 is respectively connected with the filter plate 13 and the cover plate 12, the two linkage devices 4 are symmetrically arranged on the left and right sides of the collection box 1, the two ends of the connecting rod 6 are respectively connected to a linkage device 4, and the power assembly 5 The output end is connected with connecting rod 6.

Referring to Fig. 3, when the waste in the collection box 1 needs to be discharged, the power assembly 5 extends its output end, and drives the linkage device 4 to open the cover 12, the linkage device 4 drives the end of the filter plate 13 close to the discharge port 11 to the collection box. 1 Rotate the top so that the inlet and outlet air duct 2 and the feed duct 3 are located on the same side of the filter plate 13. Restart the air supply device 8 to blow air, so that the waste adhering to the filter plate 13 and the waste in the collection box 1 are blown out of the collection box 1 from the discharge port 11 by the air flow, preventing the waste from being blown into the feed pipe 3 go in.

Referring to FIG. 2, when the waste material needs to be collected, the power assembly 5 retracts its output end and drives the linkage device 4 to close the cover plate 12. The linkage device 4 drives the end of the filter plate 13 close to the discharge port 11 to rotate toward the bottom of the collection box 1, The air inlet and outlet pipes 2 and the feed pipe 3 are located on the upper and lower sides of the filter plate 13, and then the air supply device 8 is started to suck air, so that the waste material enters the collection box 1 through the suction head 7 and the feed pipe 3. In this way, the waste material entering the collection box 1 is prevented from being sucked into the air supply device 8 through the air inlet and outlet duct 2 .

Through the cooperation of the linkage device 4 and the filter plate 13, the collection process can effectively isolate and prevent the trimming waste from entering the air inlet and outlet ducts 2 without affecting the collection effect of the trimming waste; after collection, it can avoid blowing the trimming waste. into the feed line 3. The discharge box effectively improves the stability and efficiency of trimming waste recycling, saves time and effort, accelerates the efficiency of waste recycling, and improves the waste recycling effect and production and processing efficiency.

Specifically, the linkage 4 includes a connected lateral drive mechanism 41 and a vertical drive mechanism 42, the lateral drive mechanism 41 is provided on the outer wall of the collection box 1, and the two ends of the lateral drive mechanism 41 are respectively connected with the cover plate 12 and the connecting rod 6; The vertical driving mechanism 42 is arranged on the inner wall of the collection box 1 , and the vertical driving mechanism 42 is connected with the filter plate 13 .

Among them, the lateral drive mechanism 41 is arranged on the outer wall of the collection box 1, and the vertical drive mechanism 42 is arranged on the inner wall of the collection box 1, and the output power is provided by the power assembly 5, thereby driving the lateral drive mechanism 41 and the vertical drive mechanism 42 to act synchronously , so as to realize the linkage between the cover plate 12 and the filter plate 13 . Wherein, the power assembly 5 can be selected as a cylinder.

In one embodiment, the lateral drive mechanism 41 includes a first rack 411 and a first gear 412, the first rack 411 meshes with the first gear 412 for transmission, and two ends of the first rack 411 are respectively connected to the cover plate 12 and the first gear 412. The rod 6 is connected; the vertical drive mechanism 42 includes a second rack 421 and a second gear 422, the second rack 421 meshes with the second gear 422 for transmission, and the first gear 412 and the second gear 422 are coaxially installed in the collection box 1 On the side plate, the top of the second rack 421 and the filter plate 13 form a ball pair fit. The first gear 412 and the second gear 422 are coaxially arranged with the same rotating shaft 43 mounted on the side plate of the collection box 1 , the first rack 411 can move along the lateral direction of the collection box 1 , and the second rack 421 can move along the collection box 1 1 to move vertically. When the output end of the power assembly 5 telescopically drives the first rack 411 to move, the first rack 411 drives the first gear 412 that meshes with it to rotate. Since the first gear 412 and the second gear 422 are coaxially arranged, it also drives the collection The second gear 422 in the box 1 rotates accordingly, and the second gear 422 drives the second rack 421 to move in the vertical direction of the collection box 1, and the vertical movement of the second rack 421 drives the filter plate 13 to rotate, Since the top of the second rack 421 is matched with the bottom ball pair of the filter plate 13 , the rotation of the filter plate 13 will be restricted by the second rack 421 , so that the linkage device 4 and the filter plate 13 can cooperate.

Further, in order to improve the smooth sliding of the first rack 411 and the second rack 421, a first sliding rail 44 and a second sliding rail 45 are also included, and the first sliding rail 44 is laterally installed on the outer wall of the collection box 1, The first rack 411 is slidably fitted on the first sliding rail 44 ; the second sliding rail 45 is vertically installed on the inner wall of the collection box 1 , and the second rack 421 is slidably fitted on the second sliding rail 45 .

Furthermore, it also includes an accommodating cover 16, the opening of the accommodating cover 16 is fastened on the inner wall of the collection box 1, and the second gear 422 is installed in the accommodating cover 16; the second sliding rail 45 includes a sliding hole, and the sliding hole and the accommodating cover 16 is connected, and the second rack 421 is slidably fitted in the sliding hole. Since the waste in the collection box 1 is easy to wind up on the second rack 421 and the second gear 422, which affects the meshing transmission of the second rack 421 and the second gear 422, therefore, by arranging the accommodating cover 16 and the second sliding rail 45 , the second rack 421 and the second gear 422 are covered to ensure the normal operation of the vertical drive mechanism 42 .

In one embodiment, the filter plate 13 includes a frame 131 and a filter screen 132, the filter screen 132 is arranged in the frame 131, and two sides of the frame 131 are respectively connected to the inner wall of the collection box 1 through rotating columns 133. The circumferential direction of the frame 131 There are brushes on the side walls. Referring to FIG. 5 , arranging the filter screen 132 in the frame 131 can improve the strength structure of the filter plate 13 . At the same time, arranging a brush on the circumferential side wall of the frame 131 can make the filter plate 13 fit the collection box 1 . The inner wall is rotated to avoid the entry of waste materials. Further, referring to FIG. 6 , the connecting rod 6 has a U-shaped structure, two ends of the connecting rod 6 are respectively connected with a first rack 411 , and the output end of the power assembly 5 is connected to the middle of the long cross bar of the connecting rod 6 .

In one embodiment, it also includes an upper block 14 and a lower block 15, the upper block 14 is installed on the inner wall of the front side of the collection box 1 and is close to the top of the collection box 1; the two lower blocks 15 are symmetrically arranged on the collection box 1 on the inner wall of the rear side and below the feed pipe 3. In this way, the upper block 14 and the lower block 15 can also limit the position of the filter plate 13 .

In one embodiment, the cover plate 12 is an elastic rubber plate, the top of the cover plate 12 is fixed on the collection box 1 , the cover plate 12 is fixed with a rigid strip 121 , two ends of the rigid strip 121 are respectively connected with a first rack 411 to connect. The elastic cover plate 12 can be closely attached to the discharge port 11 under the driving of the power assembly 5 to prevent the incoming air from affecting the air suction of the air supply device 8 . When opening, the cover plate 12 is partially bent, so that the discharge port 11 is partially opened, and the discharge can be completed quickly. Wherein, the cover plate 12 can be optionally a polyurethane plate.

The recovery system also includes a gas direction converter 9. The inner cavity of the gas direction converter 9 is divided into a first chamber 92, a second chamber 93 and a third chamber 94 by two partitions 91. The partition plate 91 is provided with The air hole 911, the first chamber 92 is provided with an air inlet port 921 and an air outlet port 922, the second chamber 93 is provided with a transmission port 931, and the third chamber 94 is provided with an air outlet port 941 and an air inlet port 942; In the connecting shaft 95 in the inner cavity of the air direction converter 9, the connecting shaft 95 can move along the length direction of the air direction converter 9, and the connecting shaft 95 is provided with a first valve plate 96 and a second valve plate that can close the air hole 911 97. The first valve plate 96 is located in the first chamber 92, and the second valve plate 97 is located in the second chamber 93; The air device 8 is connected through a blowing duct 99 , and the air outlet 941 is connected with the air supply device 8 through a suction duct 98 . In order to drive the connecting shaft 95 to move, the driving assembly 10 is also included. One end of the connecting shaft 95 extends out of the air inlet 942 and is connected to the output end of the driving assembly 10 .

In order to realize the switching between positive pressure (blowing), negative pressure (suction) and normal pressure of the feed pipe 3 and the air inlet and outlet pipes 2 in the whole recovery system, the recovery system of the present invention also includes an air direction converter 9 . Specifically, the drive assembly 10 can drive the connecting shaft 95 to move linearly along the length direction of the inner cavity of the air direction converter 9 through its output end, thereby completing the first valve plate 96 and the air holes 911 in the first cavity 92 and The air vent 922 and the second valve plate 97 are in contact with the air hole 911 and the air inlet 942 in the third chamber 94 to seal or be separated. Wherein, the drive assembly 10 can be optionally an air cylinder.

Referring to FIG. 7 , when air suction is required, the output end of the drive assembly 10 drives the connecting shaft 95 to move toward the air inlet 942 in the third chamber 94 , so that the second valve plate 97 contacts and seals the air inlet 942 . The first valve plate 96 is brought into contact with the air hole 911 in the first chamber 92 and sealed. The air flow will enter the feed pipe 3 along the suction port of the suction head 7, flow through the collection box 1, and enter the second chamber 93 and the third chamber 94 from the transmission interface 931 along the air inlet and outlet pipe 2, Then it enters the air supply device 8 from the air outlet port 941 through the air suction duct 98, then flows out from the air supply device 8, enters the first chamber 92 along the blowing duct 99, and finally exhausts the air through the air outlet 922 to the outside of the converter 9 , forming a negative pressure circuit (suction state).

Referring to FIG. 8 , when blowing is required, the output end of the drive assembly 10 drives the connecting shaft 95 to move toward the air outlet 922 in the first chamber 92 , so that the first valve plate 96 contacts and seals the air outlet 922 , while the second valve plate 96 contacts and seals the air outlet 922 The valve plate 97 contacts and seals the air hole 911 in the third chamber 94 . The airflow will enter the third chamber 94 from the air inlet 942, and then enter the air supply device 8 from the air outlet port 941, and then flow out from the air supply device 8, and enter the first chamber 92 and the first chamber 92 and the first chamber 92 along the blowing duct 99. In the second chamber 93, the airflow enters the air inlet and outlet duct 2 through the transmission interface 931 to form a positive pressure loop (air blowing state). Among them, the arrows in FIGS. 7 and 8 indicate the airflow direction.

The working principle of the recycling system of the present invention is: when collecting waste, the power assembly 5 retracts its output end, drives the first rack 411 to move and closes the cover plate 12, and the second rack 421 drives the filter plate 13 close to the discharge port 11. One end rotates toward the bottom of the collection box 1 so that the air inlet and outlet pipes 2 and the feed pipes 3 are located on the upper and lower sides of the filter plate 13 . Then, the output end of the drive assembly 10 drives the connecting shaft 95 to move toward the air inlet 942 in the third chamber 94, so that the second valve plate 97 contacts and seals the air inlet 942, and at the same time, the first valve plate 96 and the The air hole 911 in a chamber 92 contacts and seals. Finally, when the air supply device 8 is activated again, the air flow will enter the feed pipe 3 along the suction port of the material suction head 7, flow through the collection box 1, and enter the second cavity from the transmission interface 931 along the air inlet and outlet pipe 2. The chamber 93 and the third chamber 94 enter the air supply device 8 from the air outlet 941 through the air suction duct 98, then flow out from the air supply device 8, enter the first chamber 92 along the air blowing duct 99, and finally pass through the air supply device 8. The air port 922 discharges the air to the outside of the converter 9 to form a negative pressure circuit (air suction state). In this way, under the influence of negative pressure, the waste materials generated in the sealing and cutting station of the packaging bag are sucked into the collection box 1 through the suction head 7 .

When the waste is discharged, the power assembly 5 extends its output end, and drives the first rack 411 to move and open the cover plate 12, and the second rack 421 drives the end of the filter plate 13 close to the discharge port 11 to rotate toward the top of the collection box 1, so that the in and out The air duct 2 and the feed duct 3 are located on the same side of the filter plate 13 . Then, the output end of the drive assembly 10 drives the connecting shaft 95 to move toward the air release port 922 in the first chamber 92, so that the first valve plate 96 contacts and seals the air release port 922, and at the same time, the second valve plate 97 is connected to the third chamber. The air holes 911 in the chamber 94 are contacted and sealed. Finally, when the air supply device 8 is activated again, the air flow will enter the third chamber 94 from the air inlet 942 , then enter the air supply device 8 from the air outlet port 941 , and then flow out from the air supply device 8 along the blowing duct 99 Entering into the first chamber 92 and the second chamber 93, the airflow enters the air inlet and outlet duct 2 through the transmission interface 931, forming a positive pressure loop (air blowing state). In this way, the waste material in the collection box 1 can be blown out of the collection box 1 from the discharge port 11 .

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be Modifications or equivalent substitutions without departing from the spirit and scope of the technical solutions of the present invention should be included in the scope of the claims of the present invention.

Claims (9)

1. The utility model provides a wrapping bag cuts leftover bits recovery system which characterized in that: the material suction device comprises a material suction head, a feeding pipeline, a collecting box, an air inlet and outlet pipeline and an air supply device which are connected in sequence, wherein a discharge hole is formed in the front side of the collecting box, a cover plate matched with the discharge hole is arranged on the collecting box, and the cavity bottom of the collecting box is obliquely arranged; the top of the collecting box is communicated with the air inlet and outlet pipeline, and the rear side of the collecting box is communicated with the feeding pipeline; the inner cavity of the collecting box is provided with a filter plate, the filter plate is provided with a plurality of filter holes, and two sides of the filter plate are rotatably connected to two opposite inner walls of the collecting box;

the filter plate collecting device comprises a collecting box, a filter plate, a power assembly and a connecting rod, wherein the filter plate is connected with the filter plate;

when the cover plate is opened, the linkage device drives one end of the filter plate close to the discharge port to rotate towards the top of the collecting box, so that the air inlet and outlet pipeline and the feeding pipeline are positioned at the same side of the filter plate; when the cover plate is closed, the linkage device drives one end of the filter plate close to the discharge port to rotate towards the bottom of the collecting box, so that the air inlet and outlet pipeline and the feeding pipeline are positioned at the upper side and the lower side of the filter plate.

2. The recycling system according to claim 1, wherein: the linkage device comprises a transverse driving mechanism and a vertical driving mechanism which are connected, the transverse driving mechanism is arranged on the outer wall of the collecting box, and two ends of the transverse driving mechanism are respectively connected with the cover plate and the connecting rod; the vertical driving mechanism is arranged on the inner wall of the collecting box and connected with the filter plate.

3. A recycling system according to claim 2, characterized in that: the transverse driving mechanism comprises a first rack and a first gear, the first rack is in meshing transmission with the first gear, and two ends of the first rack are respectively connected with the cover plate and the connecting rod;

the vertical driving mechanism comprises a second rack and a second gear, the second rack is in meshing transmission with the second gear, the first gear and the second gear are coaxially mounted on a side plate of the collecting box, and the top of the second rack is matched with the filter plate to form a ball pair.

4. A recycling system according to claim 3, characterized in that: the collecting box is characterized by further comprising a first sliding rail and a second sliding rail, wherein the first sliding rail is transversely arranged on the outer wall of the collecting box, and the first rack is in sliding fit with the first sliding rail; the second sliding rail is vertically installed on the inner wall of the collecting box, and the second rack is in sliding fit with the second sliding rail.

5. The recycling system of claim 4, wherein: the filter plate comprises a frame and a filter screen, the filter screen is arranged in the frame, the two sides of the frame are respectively connected to the inner wall of the collecting box through rotating columns, and the circumferential side wall of the frame is provided with a brush.

6. The recycling system of claim 5, wherein: the upper baffle block is arranged on the inner wall of the front side of the collecting box and is close to the top of the collecting box; the two lower retaining blocks are symmetrically arranged on the inner wall of the rear side of the collecting box and are positioned below the feeding pipeline.

7. The recycling system of claim 6, wherein: the cover plate is a rubber plate, the top of the cover plate is fixed on the collecting box, a hard strip is fixed on the cover plate, and two ends of the hard strip are respectively connected with a first rack.

8. The recycling system according to any one of claims 1 to 7, wherein: the air-direction converter is characterized by further comprising an air-direction converter, two partition plates in the inner cavity of the air-direction converter are divided into a first cavity, a second cavity and a third cavity, air holes are formed in the partition plates, the first cavity is provided with an air inlet interface and an air outlet, the second cavity is provided with a transmission interface, and the third cavity is provided with an air outlet interface and an air inlet;

the air-direction converter is characterized by further comprising a connecting shaft arranged in the inner cavity of the air-direction converter, the connecting shaft can move along the length direction of the air-direction converter, a first valve plate and a second valve plate which can seal the air hole are arranged on the connecting shaft, the first valve plate is located in the first cavity, and the second valve plate is located in the second cavity;

the transmission interface is connected with the collecting box through an air inlet and outlet pipeline, the air inlet interface is connected with the air supply device through an air blowing pipeline, and the air outlet interface is connected with the air supply device through an air suction pipeline.

9. The recycling system of claim 8, wherein: the air inlet is arranged at the front end of the connecting shaft, and the air inlet is arranged at the rear end of the connecting shaft.

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