Blow molding leftover material recycling device

Abstract

The utility model relates to the technical field of plastic recovery, in particular to a blow molding leftover material recycling device which comprises a machine body, a driving device; folding the limiting frame; a top pressing baffle plate; and a discharging hopper plate. According to the blow molding leftover material recycling and reusing device, the driving device is arranged to drive the two top pressing baffles to move in the crushing period of the crushing roller, the two top pressing baffles are limited by a folding type limiting frame to move transversely and then move downwards in the longitudinal direction, and hard extrusion on leftover materials is achieved in the downward moving period; the leftover materials are fully extruded and crushed with the crushing roller, the effect of improving the crushing efficiency of the crushing roller is further achieved, the problem of invalid crushing is reduced, the discharging hopper plate and the machine body form a trapezoid shape, discharging and guiding of the leftover materials are facilitated, and the rotatable and telescopic discharging hopper plate can achieve the effect of automatically compressing the discharging space. The pressurization effect generated after compression acts on the leftover materials to promote crushing, the crushing efficiency is further improved, and efficient recycling is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic recycling, in particular to a blow molding scrap recycling device. Background Art

[0002] Blow molding, also known as hollow blow molding, is a rapidly developing plastic processing method. Blow molding technology was first used to produce low-density polyethylene bottles. With the birth of high-density polyethylene and the development of blow molding machines, blow molding technology has been widely used. In the production of plastic blow molding, a lot of scraps are generated and need to be crushed and recycled.

[0003] In the process of recycling blow molding scraps, the scraps need to be collected first, and then concentrated in the crusher for crushing. However, due to the plastic nature of the blow molding scraps, after feeding into the crusher, the already started crushing roller cannot repeat the crushing of the scraps in time. Some scraps will roll on the crushing roller, resulting in ineffective crushing of the crushing roller, which in turn affects the crushing efficiency of the scraps. Crushing the scraps is the most important part of the recycling system. Low crushing efficiency will seriously affect the overall efficiency of recycling and reuse. In view of this, we propose a blow molding scrap recycling and reuse device. Utility Model Content

[0004] The purpose of the embodiment of the utility model is to provide a blow molding scrap recycling device, which solves the problems in the background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A blow molding scrap recycling and reuse device comprises two top pressure baffles arranged opposite to each other on a machine body, a driving device for driving the top pressure baffles to move, and a folding limit frame for guiding the movement of the top pressure baffles, and the two top pressure baffles first approach each other and then move downward together under the cooperation of the driving device and the folding limit frame, and two lower hopper plates are also arranged in the machine body, and the two lower hopper plates are supported by torsion springs to form a stable feed inlet with a larger upper part and a smaller lower part, and the top pressure baffle drives the two lower hopper plates to flip and deform under the drive of the driving device to reduce the feed inlet space.

[0007] Preferably, the driving device includes an electric push rod installed on the body and a double-sided gear rod driven by the electric push rod, the double-sided gear rod is meshed with a gear shaft, the gear shaft is connected to a slide frame, and the end of the gear shaft is rotatably connected to the body.

[0008] Preferably, the top pressure baffle includes a pressure plate, an angle plate connected to the pressure plate, and sliding shafts installed on both sides of the pressure plate, and the sliding shafts are respectively slidably connected to the inner walls of the folding limit frame and the sliding frame.

[0009] Preferably, the lower hopper plate includes a shaft rod rotatably connected to the machine body, a plate No. 1 installed on the shaft rod, a plate No. 2 slidably connected to the plate No. 1, and a plate No. 3 slidably connected to the plate No. 2. Both ends of the shaft rod are connected to the machine body through torsion springs, and a spring is connected between the plate No. 1 and the plate No. 3.

[0010] Preferably, the No. 1 plate is connected to a butt plate elastically connected to the No. 3 plate, and the butt plate is used for butting against the machine body for positioning.

[0011] Preferably, a shield is slidably connected inside the folding limit frame, and the shield is connected to the body through a spring.

[0012] By means of the above technical solution, the utility model provides a blow molding scrap recycling device, which has at least the following beneficial effects:

[0013] (1) This blow molding scrap recycling and reuse device is provided with a driving device to drive the two top pressure baffles to move during the crushing of the crushing roller. The two top pressure baffles are restricted by the folding limit frame to move horizontally and then move downward longitudinally. During the downward movement, the scraps are hard squeezed, so that the scraps are fully squeezed and crushed with the crushing roller, further achieving the effect of improving the crushing efficiency of the crushing roller and reducing the problem of ineffective crushing. The lower hopper plate and the body form a trapezoidal shape, which is convenient for the discharge and guidance of the scraps, and the rotatable and retractable lower hopper plate can move accordingly with the movement of the top pressure baffle, so as to achieve the effect of automatic compression of the discharge space. The pressurized effect generated after compression acts on the scraps, so that they contact the crushing roller at low pressure for crushing, further improving the crushing efficiency and achieving efficient recycling.

[0014] (2) This blow molding scrap recycling and reuse device is equipped with a rotatable and telescopic lower hopper plate, and utilizes the spring and torsion spring thereon so that the lower hopper plate is always affected by the elastic force, which not only limits the telescopic and tilting state of the lower hopper plate, but also can control the lower hopper plate to move and reset without external power.

[0015] (3) This blow molding scrap recycling and reuse device ensures the stability of the lower hopper plate in a tilted state by setting a stop plate, thereby preventing the scraps from impacting the three plates and causing them to deflect outward. The lower hopper plate is always in contact with the top pressure baffle plate as a whole, forming a stable closed space, thereby ensuring the unloading of the scraps. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the driving device in the embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the lower hopper plate in the embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the top pressure baffle structure in the embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the abutment plate in the embodiment of the utility model;

[0022] Figure 6 It is a schematic diagram of the shield structure in the embodiment of the utility model.

[0023] In the figure: 1. machine body; 2. driving device; 21. electric push rod; 22. double-sided gear rod; 23. gear shaft; 24. slide frame; 3. top pressure baffle; 31. pressure plate; 32. angle plate; 33. slide shaft; 4. lower hopper plate; 41. shaft rod; 42. plate No. 1; 43. plate No. 2; 44. plate No. 3; 45. stop plate; 5. folding limit frame; 51. shield plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 6 , a technical solution provided by the utility model:

[0026] A blow molding scrap recycling device, including a machine body 1 on which two relatively arranged top pressure baffles 3 are arranged, a driving device 2 for driving the top pressure baffles 3 to move, and a folding limit frame 5 for guiding the movement of the top pressure baffles 3, wherein the folding limit frame 5 is in the shape of a number "7" and is used to limit the horizontal and vertical movement of the top pressure baffles 3, and the two top pressure baffles 3 are first approached to each other and then move downward together under the cooperation of the driving device 2 and the folding limit frame 5, and two lower hopper plates 4 are also arranged in the machine body 1, and the two lower hopper plates 4 are supported by torsion springs to form a stable feeding port with a larger upper portion and a smaller lower portion, and the top pressure baffle 3 drives the two lower hopper plates 4 to flip and deform under the drive of the driving device 2 , to reduce the space of the feed port, and the lower hopper plate 4 is driven by the moving top pressure baffle plate 3 to rotate and telescopically move. The top pressure baffle plate 3 includes a pressure plate 31, an angle plate 32 connected to the pressure plate 31, and a sliding shaft 33 installed on both sides of the pressure plate 31. The sliding shaft 33 is slidably connected to the inner wall of the folding limit frame 5 and the sliding frame 24 respectively. A closed material port that penetrates up and down and is in a funnel state on the left and right sides is formed between the two lower hopper plates 4 and the inner wall of the body 1. The inclined lower hopper plate 4 makes the material port form a state of being larger at the top and smaller at the bottom, further achieving the effect of facilitating the discharge of scraps. The discharge port in the funnel state has a material guiding effect, which can make the scraps be discharged to the crushing center of the two crushing rollers.

[0027] In this embodiment, the driving device 2 includes an electric push rod 21 installed on the body 1 and a double-sided gear rod 22 driven by the electric push rod 21. The double-sided gear rod 22 is meshed with a gear shaft 23, and the gear shaft 23 is fixedly connected to a slide frame 24. The end of the gear shaft 23 is rotatably connected to the body 1. The output shaft of the electric push rod 21 drives the top pressure baffle 3 on the slide frame 24 to move through the double-sided gear rod 22 meshing with the gear shaft 23. The top pressure baffle 3 is limited by the folding limit frame 5 during the movement. After the lateral movement, it moves downward longitudinally. During the downward movement, the scraps are hard squeezed, so that the scraps are fully squeezed and crushed with the crushing roller, further achieving the effect of improving the crushing efficiency of the crushing roller and reducing the problem of ineffective crushing.

[0028] Furthermore, the lower hopper plate 4 includes a shaft rod 41 rotatably connected to the body 1, a plate No. 1 42 installed on the shaft rod 41, a plate No. 2 43 slidably connected to the plate No. 1 42, and a plate No. 3 44 slidably connected to the plate No. 2 43. Both ends of the shaft rod 41 are connected to the body 1 through a torsion spring, and a spring is connected between the plate No. 1 42 and the plate No. 3 44. The arrangement of the spring and the torsion spring ensures that the lower hopper plate 4 is always affected by the elastic force, which not only limits the telescopic and tilting states of the lower hopper plate 4, but also controls the lower hopper plate 4 to move and reset without external power.

[0029] It is worth noting that the first plate 42 is connected to a butt plate 45 which is elastically connected to the third plate 44. The butt plate 45 is used to butt against the body 1 for positioning. Figure 2 In the middle state, the internal structure of the body 1 is against the anti-plate 45 and cannot move outward, ensuring the stability of the three number plates in the inclined state, avoiding the problem of the scraps of material being impacted by the three number plates and causing them to deflect outward, so that the entire hopper plate 4 is always in contact with the top pressure baffle plate 3, forming a stable closed space, thereby ensuring the unloading of scraps.

[0030] It is worth mentioning that a baffle 51 is slidably connected inside the folding limit frame 5, and the baffle 51 is connected to the body 1 through a spring. The baffle 51 is located in the vertical groove of the folding limit frame 5 and is used to close and protect the groove. The baffle 51 can be moved under pressure to avoid the problem of broken scraps being stuck, while ensuring the sliding of the top pressure baffle 3 in the folding limit frame 5.

[0031] When the blow molding scrap recycling and reuse device of the utility model is in use, the blow molding scraps are dumped into the body 1 through the top feeding port. The front and rear sides of the feeding port in the figure are composed of the front inner wall and the rear inner wall of the body 1, and the left and right sides of the feeding port are composed of two lower hopper plates 4. A closed feeding port that penetrates up and down and is in a funnel state on the left and right sides is formed between the two lower hopper plates 4 and the inner wall of the body 1. The lower hopper plates 4 in an inclined state make the feeding port form a state in which the upper part is larger than the lower part, which further achieves the effect of facilitating the discharge of scraps. The feeding port in the funnel state has the effect of guiding materials, which can make the scraps The materials are discharged to the crushing center of the two crushing rollers. After the discharge is completed, the materials are concentrated in the discharge port area. At this time, the crushing rollers and the electric push rod 21 are started synchronously. During the crushing of the crushing rollers, the output shaft of the electric push rod 21 moves downward through the double-sided gear rod 22. The double-sided gear rod 22 moves downward through the gear shaft 23 to drive the sliding shaft 33 in the sliding frame 24 to move. On the one hand, the sliding shaft 33 is affected by the driving force of the sliding frame 24 and moves under the restriction of the sliding frame 24. On the other hand, it is affected by the folding limit frame 5 to limit the movement. That is, during the rotation of the sliding frame 24, the top pressure baffle 3 moves along the slide groove of the folding limit frame 5 as a whole, as shown in FIG. Figure 2As shown, the two top pressure baffles 3 move towards each other, and then move downward collectively after getting close to each other. During the lateral movement of the top pressure baffles 3, the angle plates 32 gradually contact and drive the lower hopper plate 4 to rotate. During the period when the three plates in the lower hopper plate 4 are compressed and shrink accordingly, they rotate about the axis point of the shaft rod 41. At this time, the driving force applied to the shaft rod 41 is greater than the elastic force of the torsion spring, and the shaft rod 41 as a whole gives way and rotates. When the two top pressure baffles 3 move downward in contact with each other, the two lower hopper plates 4 are perpendicular to the front and rear inner sides of the machine body 1, and are affected by the downward movement of the top pressure baffles 3. The two lower hopper plates 4 are also A corresponding downward movement is performed. As the two non-parallel discharge hopper plates 4 gradually rotate into a parallel state, the discharge opening which was originally in a trapezoidal state becomes a cube state with a reduced area. Firstly, the discharge area for storing scraps with a reduced area has a pressurization effect. During the pressurization period, part of the scraps can be prompted to contact the crushing roller at low pressure for crushing, thereby improving the crushing efficiency of the crushing roller under the original pressure-free condition. Secondly, the top pressure baffle plate 3 which moves downward continuously realizes the effect of high-pressure extrusion of the scraps, so that the scraps are fully extruded and crushed with the crushing roller, thereby further achieving the effect of improving the crushing efficiency of the crushing roller and reducing the problem of ineffective crushing.

[0032] 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.

[0033] 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 blow molding scrap recycling device, comprising a body (1), characterized in that: The machine body (1) is provided with two top pressure baffles (3) arranged opposite to each other, a driving device (2) for driving the top pressure baffles (3) to move, and a folding limit frame (5) for guiding the movement of the top pressure baffles (3), and the two top pressure baffles (3) first approach each other and then move downward together under the cooperation of the driving device (2) and the folding limit frame (5), and the machine body (1) is also provided with two lower hopper plates (4), and the two lower hopper plates (4) are supported by torsion springs to form a stable feed inlet with a larger upper part and a smaller lower part, and the top pressure baffle (3) drives the two lower hopper plates (4) to flip and deform under the drive of the driving device (2) to reduce the feed inlet space.

2. A blow molding scrap recycling device according to claim 1, characterized in that: The driving device (2) comprises an electric push rod (21) mounted on the machine body (1) and a double-sided gear rod (22) driven by the electric push rod (21); a gear shaft (23) is meshed on the double-sided gear rod (22); a slide frame (24) is connected to the gear shaft (23); and an end of the gear shaft (23) is rotatably connected to the machine body (1).

3. A blow molding scrap recycling device according to claim 2, characterized in that: The top pressure baffle (3) comprises a pressure plate (31), a folded angle plate (32) connected to the pressure plate (31), and sliding shafts (33) installed on both sides of the pressure plate (31), and the sliding shafts (33) are respectively slidably connected to the inner walls of the folding limit frame (5) and the sliding frame (24).

4. The blow molding scrap recycling device according to claim 1 is characterized in that: The lower hopper plate (4) comprises a shaft (41) rotatably connected to the machine body (1), a first plate (42) mounted on the shaft (41), a second plate (43) slidably connected to the first plate (42), and a third plate (44) slidably connected to the second plate (43), the two ends of the shaft (41) are connected to the machine body (1) via a torsion spring, and a spring is connected between the first plate (42) and the third plate (44).

5. The blow molding scrap recycling device according to claim 4 is characterized in that: The first plate (42) is connected to a butt plate (45) elastically connected to the third plate (44), and the butt plate (45) is used for butting against the machine body (1) for positioning.

6. The blow molding scrap recycling device according to claim 1 is characterized in that: A shielding plate (51) is slidably connected inside the folding limiting frame (5), and the shielding plate (51) is connected inside the machine body (1) via a spring.

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