A plastic bottle compression recovery device

Abstract

The present invention discloses a plastic bottle compression recovery device, comprising a shell, a compression cavity located inside the shell, a bundling part, an extrusion part, a feeding part, a transmission part, a discharging part, and a controller; the present invention has the advantages that: through the cooperation of the compression cavity, the bundling part, the extrusion part, the feeding part, the transmission part, the discharging part, the controller, etc., the plastic bottles are effectively recovered, and a fully automatic process is adopted, which reduces labor costs, improves the efficiency of bundling recovery, ensures the utilization rate of packaging and transportation space after recovery, and improves the safety of compression recovery.

Description

Technical Field

[0001] The invention relates to the technical field of plastic bottle recycling, in particular to a plastic bottle compression recycling device. Background Art

[0002] A plastic bottle recycling machine is a device specifically used to recycle plastic bottles. It uses automation technology to help reduce the impact of plastic waste on the environment. At present, the common ways to recycle plastic bottles mainly include manual sorting and simple mechanical recycling. Manual sorting is inefficient, costly, and difficult to ensure the accuracy of classification. Although mechanical recycling equipment can improve recycling efficiency, most equipment lacks intelligent recognition functions and cannot effectively classify plastic bottles of different materials, resulting in low purity of recycled materials, affecting subsequent recycling. When recycling large-sized plastic bottles, it is easy to take up space, which is inconvenient for later packaging and transportation; in addition, the existing equipment still has problems such as strong dependence on manpower, low compression efficiency, high noise of the compressor, insufficient safety, and cannot be directly put into the terminal market for consumers to use. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a plastic bottle compression recovery device.

[0004] In order to solve the above technical problems, the technical solution of the present invention is:

[0005] A plastic bottle compression recovery device comprises a shell, a compression cavity located inside the shell, a bundling part, an extrusion part, a feeding part, a transmission part, a discharging part, and a controller;

[0006] The compression chamber is fixedly connected to the frame at the lower part of the shell;

[0007] The lower end of the bundling part is also fixedly connected to the inner side of the frame; the frame at the upper end of the bundling part is nested on the compression cavity; the lower end of the extrusion part is detachably connected to the upper end of the compression cavity;

[0008] The shell is provided with a feed port and a discharge port; one end of the feed portion is fixedly connected to the shell at the lower end of the feed port, and the other end is detachably connected to the opening of the upper half of the compression chamber;

[0009] The upper end of the compression chamber is detachably connected with a transmission part for conveying materials; the transmission part is arranged in the same direction as the feeding part and can extend into the upper space of the compression chamber;

[0010] The controller is electrically connected to the compression cavity, the bundling part, the extrusion part and the transmission part respectively.

[0011] Furthermore, a material identification module is detachably connected to the shell above the feed part; the material identification module is electrically connected to the controller; and a photoelectric sensor is detachably connected to the upper part of the compression cavity.

[0012] Furthermore, the compression chamber includes a chamber shell, an ejection assembly, a chamber door, a first electric push rod, and a magnetic plate; the chamber shell is vertically provided with a through groove for adapting to the bundling part; the rear end of the chamber shell is provided with an ejection assembly, and the front end is rotatably connected to the chamber door; the tail end of the first electric push rod is detachably connected to the side of the rotational connection between the chamber door and the chamber shell, and the output end is detachably connected to the end surface of the chamber door; the magnetic plate is arranged away from the chamber door, and is used for fixing the chamber shell and the chamber door; the ejection assembly includes a second electric push rod, a push plate, a sleeve, and a guide rod; the output end of the second electric push rod is detachably connected to the push plate; the upper and lower ends of the push plate are fixedly connected to the guide rod; a sleeve is slidably sleeved on the guide rod; and the sleeve is fixedly connected to the chamber shell.

[0013] Furthermore, the transmission part includes a connecting frame, a fixed guide rail, a sliding guide rail, a first motor, a driven wheel, and a rack; the connecting frame is fixedly connected to the first support member at the upper end of the compression chamber; the fixed guide rail is detachably connected to the lower part of the first support member; the sliding guide rail is slidably connected to the fixed guide rail; a clamp is fixedly connected to the lower part of the sliding guide rail; the first motor is detachably connected to the upper part of the connecting frame; the driven wheel is fixedly connected to the output end of the first motor; the rack is fixedly connected to the side of the sliding guide rail through an L-shaped plate; the driven wheel can move relative to the rack.

[0014] Furthermore, the transmission part also includes a rectangular protrusion and an arc-shaped protrusion; the rectangular protrusion is detachably connected to the lower end of the U-shaped support frame; the arc-shaped protrusion is detachably connected to the lower end of the extrusion part; the front end of the first support member is detachably connected to the U-shaped support frame; the clamp includes a limit member, a clamping plate, a transverse connecting member, and a spring; the limit member contacts the inner side of the rectangular protrusion when the clamp moves toward the feeding part, and contacts the outer side of the rectangular protrusion when the clamp moves away from the feeding part; two transverse connecting members are detachably connected between the two clamping plates; a spring is detachably connected between the clamping plate and the transverse connecting member; the limit member is arranged above the clamping plate on one side of the rectangular protrusion, and is used for opening and contracting the clamp; the limit member contacts the arc surface of the arc-shaped protrusion when the clamp moves above the compression cavity, and is used for opening and contracting the clamp.

[0015] Furthermore, an arc-shaped groove is arranged below the clamping plate; the arc-shaped groove is arranged in a serrated shape or is fitted with a rubber sheet; the feeding part is an arc-shaped plate matching the shape of the transmission part; and the discharging part is an inclined U-shaped splicing plate.

[0016] Furthermore, the bundling unit adopts a bundling machine or a baling machine.

[0017] Furthermore, the extrusion part includes a second motor, a belt, a transmission shaft, a first screw rod, a second screw rod, a first pressure plate, and a second pressure plate; the output end of the second motor drives the first screw rod to perform lifting movements through a worm gear; the output end of the second motor is transmitted to the transmission shaft through a belt; the transmission shaft drives the second screw rod to perform lifting movements through a worm gear; the lower end of the first screw rod is fixedly connected to the first pressure plate; the lower end of the second screw rod is fixedly connected to the second pressure plate; the first pressure plate and the second pressure plate are in the same horizontal plane, and a gap is left between the two to adapt to the upper end frame of the bundling part; a pressure sensor is arranged below the first pressure plate and the second pressure plate.

[0018] Furthermore, a collecting port is provided on the shell near the feed port; a collecting trough is fixedly connected to the inside of the shell below the collecting port; a display is provided on the shell, and the display is electrically connected to the controller.

[0019] Furthermore, a turntable is rotatably connected to the U-shaped support frame above the transmission part for placing the strapping belt; and a plurality of pulleys are fixedly connected to the outer wall of the compression chamber for facilitating the movement of the strapping belt.

[0020] Beneficial effects of the present invention:

[0021] (1) The compression chamber is provided to provide space for compressing and bundling plastic bottles; the bundling part can pack and bundle the compressed plastic bottles; the extrusion part can effectively compress the plastic bottles; the transmission part can convey the plastic bottles fed into the feeding part, so that the plastic bottles can fall smoothly into the compression chamber; the discharging part can discharge the compressed and bundled plastic bottles; the controller can effectively control various parts of the plastic bottle compression and recovery device;

[0022] (2) Through the coordination of the compression chamber, bundling unit, extrusion unit, feeding unit, transmission unit, discharging unit, controller, etc., plastic bottles are effectively recycled. The fully automatic process reduces labor costs, improves the efficiency of bundling recycling, ensures the utilization rate of packaging and transportation space after recycling, and improves the safety of compression recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the present invention without the shell wall;

[0025] Figure 3 for Figure 2 Side view of

[0026] Figure 4 is a schematic diagram of the structure of the compression chamber;

[0027] Figure 5 It is a schematic diagram of the structure of the launch component;

[0028] Figure 6 It is a schematic diagram of the installation position of the transmission part;

[0029] Figure 7 It is a front view of 6;

[0030] Figure 8 It is a structural schematic diagram of the extrusion part;

[0031] Fig. 9 This is a schematic diagram of the installation position of the transmission unit from another perspective;

[0032] Fig.10 for Fig. 9 The enlarged view of point A in the middle;

[0033] Fig.11 It is a schematic diagram of the structure of a rectangular convex block;

[0034] Fig.12 It is a schematic diagram of the structure of the arc-shaped convex block.

[0035] In the figure:

[0036] 1-shell, 2-compression chamber, 3-bundling part, 4-extrusion part, 5-feeding part, 6-transmission part, 7-discharging part, 8-controller, 9-collection port, 10-display;

[0037] 11-frame, 12-feeding port, 13-discharging port;

[0038] 21- chamber shell, 22- ejection assembly, 23- chamber door, 24- first electric push rod, 25- magnetic suction plate, 26- first support member, 27- U-shaped support frame;

[0039] 221-first electric push rod, 222-push plate, 223-sleeve, 224-guide rod;

[0040] 31-frame, 32-turntable, 33-pulley;

[0041] 41-second motor, 42-belt, 43-transmission shaft, 44-first screw rod, 45-second screw rod, 46-first pressing plate, 47-second pressing plate;

[0042] 61-connecting frame, 62-fixed guide rail, 63-sliding guide rail, 64-first motor, 65-driven wheel, 66-rack, 67-clamp; 68-rectangular protrusion; 69-arc-shaped protrusion.

[0043] 671-limiting member, 672-clamping plate, 673-transverse connecting member, 674-spring, 675-arc groove;

[0044] 91-Collection tank. DETAILED DESCRIPTION

[0045] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0046] Reference Figure 1-12 As shown, a plastic bottle compression recovery device includes a shell 1, a compression cavity 2 located inside the shell 1, a bundling part 3, an extrusion part 4, a feeding part 5, a transmission part 6, a discharging part 7, and a controller 8;

[0047] It should be noted that the shell 1 is a accommodating component of the plastic bottle compression and recovery device; the compression cavity 2 is a space for compressing plastic bottles, which can be compressed and bundled; the bundling part 3 can pack and bundle the compressed plastic bottles; the extrusion part 4 can effectively compress the plastic bottles; the transmission part 6 can convey the plastic bottles fed into the feeding part 5, so that the plastic bottles can fall smoothly into the compression cavity 2; the discharging part 7 can discharge the compressed and bundled plastic bottles; the controller 8 can effectively control each part of the plastic bottle compression and recovery device.

[0048] In order to facilitate compression and packaging, the compression chamber 2 is fixedly connected to the frame 11 at the lower part of the shell 1;

[0049] The lower end of the bundling part 3 is also fixedly connected to the inner side of the frame 11; the frame 31 at the upper end of the bundling part 3 is nested on the compression chamber 2; the lower end of the extrusion part 4 is detachably connected to the upper end of the compression chamber 2; the bundling part 3 is located in the vertical position of the compression chamber 2, and can effectively bundle the plastic bottles that have been compressed in the compression chamber 2. The bundling part 3 can be provided with multiple sets to bundle the plastics to ensure the stability of the bundling.

[0050] In order to facilitate feeding and discharging, a feed port 12 and a discharge port 13 are provided on the shell 1; one end of the feed portion 5 is fixedly connected to the shell 1 at the lower end of the feed port 12, and the other end is detachably connected to the opening of the upper half of the compression chamber 2;

[0051] The upper end of the compression chamber 2 is detachably connected with a transmission part 6 for conveying materials; the transmission part 6 is arranged in the same direction as the feeding part 5 and can extend into the upper space of the compression chamber 2; the bottles can be effectively transported into the compression chamber 2 through the transmission part 6.

[0052] The controller 8 is electrically connected to the compression chamber 2, the bundling part 3, the extrusion part 4, and the transmission part 6 respectively. Through the control of the controller 8, the orderly movement of each component can be effectively guaranteed to ensure the normal operation of the equipment. The controller 8 is a commercially available product. Technical personnel in this field can select and adapt it according to actual needs. The conventional PLC controller can meet the requirements.

[0053] Specifically, a material identification module is detachably connected to the housing 1 above the feeding part 5; the material identification module is electrically connected to the controller 8; and a photoelectric sensor 28 is detachably connected to the upper part of the compression cavity 2. The material identification module uses a Raman spectrometer to detect the material and feeds back the detection result to the controller 8; the photoelectric sensor 28 can detect the height of the plastic bottle inside the compression cavity 2. When the height reaches a predetermined position, the controller 8 controls the extrusion part 4 to move and compress the plastic bottle.

[0054] Specifically, the compression chamber 2 includes a chamber shell 21, an ejection assembly 22, a chamber door 23, a first electric push rod 24, and a magnetic plate 25; the chamber shell 21 is vertically provided with a through groove 29 for adapting to the bundling part 3; the rear end of the chamber shell 21 is provided with an ejection assembly 22, and the front end is rotatably connected to the chamber door 23; the tail end of the first electric push rod 24 is detachably connected to the side of the chamber door 23 and the chamber shell 21 that is rotatably connected, and the output end is detachably connected to the end surface of the chamber door 23; the magnetic plate 25 is arranged on a part away from the chamber door 23, and is used for fixing the chamber shell 21 and the chamber door 23; the ejection assembly 22 includes a second electric push rod 221, a push plate 222, a sleeve 223, and a guide rod 224; the output end of the second electric push rod 221 is detachably connected to the push plate 222; the upper and lower ends of the push plate 222 are fixedly connected to the guide rod 224; a sleeve 223 is slidably sleeved on the guide rod 224; the sleeve 223 is fixedly connected to the chamber shell 21.

[0055] The cavity shell 21 can ensure the stability of the compression of the plastic bottle; the pushing component 22 can push the plastic bottle out after the compression and bundling are completed; the cavity door 23 is closed during compression to ensure the stability of the compression. When the plastic bottle is taken out, the controller 8 controls the first electric push rod 24 to retract and open the cavity door 23. At this time, the pushing component 22 moves to push the plastic bottle out; the magnetic suction plate 25 can further ensure the stability of the compressed plastic bottle; the opening of the through groove 29 can ensure the installation of the bundling part 3, so that the bundling belt is not interfered with by other components during bundling.

[0056] The second electric push rod 221 provides power support for pushing out the plastic bottle; the push plate 222 is a vertical plate that can effectively ensure a greater degree of contact with the plastic bottle, allowing it to be effectively pushed out; the sleeve 223 cooperates with the guide rod 224 to prevent the second electric push rod 221 and the push plate 222 from tilting during movement.

[0057] Specifically, the transmission part 6 includes a connecting frame 61, a fixed guide rail 62, a sliding guide rail 63, a first motor 64, a driven wheel 65, and a rack 66; the connecting frame 61 is fixedly connected to the first support member 26 at the upper end of the compression chamber 2; the fixed guide rail 62 is detachably connected to the lower part of the first support member 26; the sliding guide rail 63 is slidably connected to the fixed guide rail 62; the clamp 67 is fixedly connected to the lower part of the sliding guide rail 63; the first motor 64 is detachably connected to the upper part of the connecting frame 61; the driven wheel 65 is fixedly connected to the output end of the first motor 64; the rack 66 is fixedly connected to the side of the sliding guide rail 63 through an L-shaped plate; the driven wheel 65 can move relative to the rack 66.

[0058] The connecting frame 61 can facilitate the stable connection between the transmission part 6 and other components; the fixed guide rail 62 can be fixed to the connecting frame 61; the sliding guide rail 63 can move relative to the fixed guide rail 62, driving the clamp 67 to move and grab the plastic bottle into the compression chamber 2; the first motor 64 can drive the driven wheel 65 to move the rack 66. The rack 66 is fixedly connected to the side of the sliding guide rail 63 through an L-shaped plate, and the sliding guide rail 63 can be driven by the first motor 64 to move.

[0059] Specifically, the transmission part 6 further includes a rectangular protrusion 68 and an arc-shaped protrusion 69; the rectangular protrusion 68 is detachably connected to the lower end of the U-shaped support frame 27; the arc-shaped protrusion 69 is detachably connected to the lower end of the extrusion part 4; the front end of the first support member 26 is detachably connected to the U-shaped support frame 27; the clamp 67 includes a limiter 671, a clamping plate 672, a transverse connecting member 673, and a spring 674; the limiter 671 contacts the inner side of the rectangular protrusion 68 when the clamp 67 moves toward the feeding part 5, and moves toward the feeding part 5. When moving away from the feeding part 5, it contacts the outer side of the rectangular protrusion 68; two transverse connecting members 673 are detachably connected between the two clamping plates 672; a spring 674 is detachably connected between the clamping plate 672 and the transverse connecting member 673; a limit member 671 is arranged above the clamping plate 672 on one side of the rectangular protrusion 68, and is used for the opening and contraction of the clamp; when the clamp 67 moves toward the top of the compression chamber 2, the limit member 671 contacts the arc surface of the arc protrusion 69, and is used for the opening and contraction of the clamp 67.

[0060] The small side of the rectangular protrusion 68 is parallel to the moving direction of the sliding guide rail 63. When the stopper 671 passes through the rectangular protrusion 68, the stopper 671 contacts the inner side of the rectangular protrusion 68 when the clamp 67 moves to the side of the feed part 5, and the spring 674 stretches. At this time, the clamp 67 changes from the clamping state to the open state. When it is separated from the rectangular protrusion 68, the spring 674 contracts, so that the clamping plate 672 just clamps the plastic bottle. Then the controller 8 is reversed, driving the rack 66 to move away from the feed part 5. At this time, the stopper 671 contacts the outer side of the rectangular protrusion 68. The stopper 671 is in an active state at this time and does not exert force on the clamp 67. The clamp 67 still maintains the clamping state. After the clamp 67 moves to the top of the compression cavity 2, the stopper 671 just contacts the arc surface of the arc protrusion 69. The spring 674 stretches to make the clamp 67 change to the open state, and the plastic bottle falls into the compression cavity 2. The clamp 67 completes a clamping process.

[0061] Specifically, an arc groove 675 is provided below the clamping plate 672; the arc groove 675 can effectively clamp plastic bottles of different specifications. The arc groove 675 is set to be serrated or fitted with a rubber sheet; the serrated or rubber sheet can clamp the plastic bottle more smoothly. The feeding part 5 is an arc plate matching the shape of the transmission part 6; the discharging part 7 is an inclined U-shaped splicing plate. The arc plate and the U-shaped splicing plate are provided to facilitate feeding and discharging.

[0062] Specifically, the strapping part 3 adopts a strapping machine or a baling machine; strapping machines or baling machines are existing technologies, and those skilled in the art can select a suitable strapping machine or baling machine according to needs and embed it into the compression cavity 2 for use.

[0063] Specifically, the extrusion part 4 includes a second motor 41, a belt 42, a transmission shaft 43, a first screw rod 44, a second screw rod 45, a first pressure plate 46, and a second pressure plate 47; the output end of the second motor 41 drives the first screw rod 44 to perform lifting movements through a worm gear; the output end of the second motor 41 is transmitted to the transmission shaft 43 through the belt 42; the transmission shaft 43 drives the second screw rod 45 to perform lifting movements through the worm gear; the lower end of the first screw rod 44 is fixedly connected to the first pressure plate 46; the lower end of the second screw rod 45 is fixedly connected to the second pressure plate 47; the first pressure plate 46 and the second pressure plate 47 are in the same horizontal plane, and a gap 48 is left between the two to adapt to the upper end frame 31 of the bundling part 3; a pressure sensor is arranged below the first pressure plate 46 and the second pressure plate 47.

[0064] The second motor 41 drives the first screw 44 and the second screw 45 to move up and down respectively through the worm gear and belt transmission, thereby compressing the plastic bottles to be compressed placed in the compression chamber 2 to ensure that there is still space inside the compression chamber 2 for placing and compressing the bottles that enter subsequently; the pressure sensor can detect the pressure and transmit it to the controller 8.

[0065] Specifically, a collecting port 9 is provided on the shell 1 near the feed port 12 ; inside the shell 1 , a collecting tank 91 is fixedly connected below the collecting port 9 ; a display 10 is provided on the shell 1 , and the display 10 is electrically connected to the controller 8 .

[0066] The collection port 9 cooperates with the collection trough 91 to collect the bottle caps and other debris in advance when recycling plastic bottles; the display 10 is a commercially available product, and technicians in this field can choose it according to actual needs. It can display the number of plastics and can also be designed as an interactive scene to increase interest and improve the user's enthusiasm for putting plastic bottles into the device.

[0067] Specifically, a turntable 32 is rotatably connected to the U-shaped support frame 27 above the transmission part 6 for placing the strapping belt; the turntable 32 facilitates the placement of the strapping belt. A plurality of pulleys 33 are fixedly connected to the outer wall of the compression chamber 2 for facilitating the movement of the strapping belt.

[0068] Working principle of the present invention:

[0069] First, the plastic bottles to be recycled are put into the feed port 12. When the plastic bottles reach the feed part 5, the material identification module arranged above the feed part 5 identifies the material. If the material is a recyclable plastic bottle, the controller 8 controls the transmission part 6 to clamp the plastic bottles placed on the feed part 5. After clamping, the transmission part 6 moves to the top of the compression cavity 2, the transmission part 6 opens, and the plastic bottles fall smoothly into the compression cavity 2, thereby completing the process of putting the plastic bottles into the feed part.

[0070] Through the detection of the controller 8, when the photoelectric sensor 28 senses that the bottles placed in the compression chamber 2 have reached the set height or the material recognition module recognizes that the number of plastic bottles has reached a predetermined number, the controller 8 controls the clamp of the transmission part 6 to move to the top of the feeding part 5, and then starts the extrusion part 4 to compress the stacked plastic bottles in the compression chamber 2 to make their stacking space smaller to ensure the subsequent input of plastic bottles. When the number of plastic bottles input reaches the set number, the controller 8 controls the extrusion part 4 to squeeze the stacked plastic bottles while controlling the bundling part 3 to bundle and pack the stacked plastic bottles. After packaging, the extrusion part 4 rises and returns to its original position. After the first electric push rod 24 contracts and drives the chamber door 23 to open, the second electric push rod 221 drives the push plate 222 to extend, and the bundled plastic bottles are pushed out. The bundled plastic bottles slide out of the device through the discharge part 7, and the staff recycles them.

[0071] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A plastic bottle compression recovery device, characterized in that: It comprises a shell (1), a compression chamber (2) located inside the shell (1), a bundling portion (3), an extrusion portion (4), a feeding portion (5), a transmission portion (6), a discharging portion (7), and a controller (8); The compression chamber (2) is fixedly connected to a frame (11) at the lower part of the shell (1); The lower end of the bundling portion (3) is also fixedly connected to the inner side of the frame (11); the frame (31) at the upper end of the bundling portion (3) is nested on the compression cavity (2); the lower end of the extrusion portion (4) is detachably connected to the upper end of the compression cavity (2); The shell (1) is provided with a feed port (12) and a discharge port (13); one end of the feed portion (5) is fixedly connected to the shell (1) below the feed port (12), and the other end is detachably connected to the opening of the upper half of the compression chamber (2); The upper end of the compression chamber (2) is detachably connected to a transmission part (6) for conveying materials; the transmission part (6) is arranged in the same direction as the feeding part (5) and can extend into the upper space of the compression chamber (2); The controller (8) is electrically connected to the compression chamber (2), the bundling portion (3), the extrusion portion (4), and the transmission portion (6) respectively; A material identification module is detachably connected to the housing (1) above the feed portion (5); the material identification module is electrically connected to the controller (8); a photoelectric sensor (28) is detachably connected to the upper portion of the compression chamber (2); The compression chamber (2) comprises a chamber shell (21), an ejection assembly (22), a chamber door (23), a first electric push rod (24), and a magnetic attraction plate (25); the chamber shell (21) is vertically provided with a through slot (29) for adapting to the bundling portion (3); the chamber shell (21) is provided with an ejection assembly (22) at the rear end, and is rotatably connected to the chamber door (23) at the front end; the first electric push rod (24) is detachably connected to the side of the chamber door (23) rotatably connected to the chamber shell (21), and the output end is detachably connected to the end surface of the chamber door (23); The magnetic attraction plate (25) is arranged on a part far from the cavity door (23) and is used for fixing the cavity shell (21) and the cavity door (23); the ejection assembly (22) comprises a second electric push rod (221), a push plate (222), a sleeve (223), and a guide rod (224); the output end of the second electric push rod (221) is detachably connected to the push plate (222); the upper and lower ends of the push plate (222) are fixedly connected to the guide rod (224); a sleeve (223) is slidably sleeved on the guide rod (224); and the sleeve (223) is fixedly connected to the cavity shell (21); The transmission part (6) comprises a connecting frame (61), a fixed guide rail (62), a sliding guide rail (63), a first motor (64), a driven wheel (65), and a rack (66); the connecting frame (61) is fixedly connected to a first support member (26) at the upper end of the compression chamber (2); a fixed guide rail (62) is detachably connected below the first support member (26); a sliding guide rail (63) is slidably connected to the fixed guide rail (62); a clamp (67) is fixedly connected below the sliding guide rail (63); a first motor (64) is detachably connected above the connecting frame (61); a driven wheel (65) is fixedly connected to the output end of the first motor (64); a rack (66) is fixedly connected to the side of the sliding guide rail (63) via an L-shaped plate; and the driven wheel (65) can move relative to the rack (66).

2. The plastic bottle compression recovery device according to claim 1, characterized in that: The transmission part (6) further comprises a rectangular protrusion (68) and an arc-shaped protrusion (69); the rectangular protrusion (68) is detachably connected to the lower end of the U-shaped support frame (27); the arc-shaped protrusion (69) is detachably connected to the lower end of the extrusion part (4); the front end of the first support member (26) is detachably connected to the U-shaped support frame (27); the clamp (67) comprises a limit member (671), a clamping plate (672), a transverse connecting member (673), and a spring (674); the limit member (671) contacts the inner side of the rectangular protrusion (68) when the clamp (67) moves toward the feeding part (5). When moving toward the side away from the feeding portion (5), it contacts the outer side of the rectangular protrusion (68); two transverse connecting members (673) are detachably connected between the two clamping plates (672); a spring (674) is detachably connected between the clamping plate (672) and the transverse connecting member (673); the limiting member (671) is arranged above the clamping plate (672) on one side of the rectangular protrusion (68) and is used for opening and contracting the clamp; when the clamp (67) moves toward the top of the compression chamber (2), the limiting member (671) contacts the arc surface of the arc-shaped protrusion (69) and is used for opening and contracting the clamp (67).

3. The plastic bottle compression recovery device according to claim 2, characterized in that: An arc-shaped groove (675) is provided below the clamping plate (672); the arc-shaped groove (675) is arranged in a sawtooth shape or is fitted with a rubber sheet; the feeding portion (5) is an arc-shaped plate matching the shape of the transmission portion (6); and the discharging portion (7) is an inclined U-shaped splicing plate.

4. The plastic bottle compression recovery device according to claim 1, characterized in that: The bundling unit (3) adopts a bundling machine or a baling machine.

5. The plastic bottle compression recovery device according to claim 1, characterized in that: The extrusion part (4) comprises a second motor (41), a belt (42), a transmission shaft (43), a first screw rod (44), a second screw rod (45), a first pressing plate (46), and a second pressing plate (47); the output end of the second motor (41) drives the first screw rod (44) to move up and down through a worm gear; the output end of the second motor (41) is transmitted to the transmission shaft (43) through a belt (42); the transmission shaft (43) drives the second screw rod (45) to move up and down through a worm gear; the lower end of the first screw rod (44) is fixedly connected to the first pressing plate (46); the lower end of the second screw rod (45) is fixedly connected to the second pressing plate (47); the first pressing plate (46) and the second pressing plate (47) are in the same horizontal plane, and a gap (48) is left between the two to fit the upper end frame (31) of the bundling part (3); pressure sensors are arranged below the first pressing plate (46) and the second pressing plate (47).

6. The plastic bottle compression recovery device according to claim 1, characterized in that: A collecting port (9) is provided on the shell (1) near the feed port (12); a collecting trough (91) is fixedly connected to the inside of the shell (1) below the collecting port (9); and a display (10) is provided on the shell (1), and the display (10) is electrically connected to the controller (8).

7. The plastic bottle compression recovery device according to claim 1, characterized in that: A turntable (32) is rotatably connected to the U-shaped support frame (27) above the transmission part (6) and is used to place the strapping belt; and a plurality of pulleys (33) are fixedly connected to the outer wall of the compression chamber (2) to facilitate the movement of the strapping belt.

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