A recycled plastic pretreatment device and process

Abstract

The invention discloses a recycled plastic pretreatment device and process, and relates to the field of recycled plastic treatment. The recycled plastic pretreatment device and process comprise an operating table, a cutting knife and a cleaning brush. The cutting knife and the cleaning brush are arranged above the operating table. In addition, a bottoming push rod is arranged on the operating table to help position the plastic container. The processing device is designed to accurately position the plastic container according to the shape of the plastic container, to help or replace manual rapid processing of recycled plastic containers, to ensure the cleaning effect of the recycled plastic, and to facilitate subsequent reproduction of the recycled plastic such as pelletizing. The electric roller and other structures on the operating table are stably positioned according to the shape of the plastic container, the possible hardening layer on the inner wall of the plastic container is processed by the extrusion rod, and the cleaning brush is driven by the bottoming push rod to clean the inner wall of the plastic container, and the inner bottom surface of the plastic container is positioned at the same time, and accurate cutting is completed by the cutting knife to ensure the cleanliness of the inside of the plastic container.

Description

Technical Field

[0001] The invention relates to plastic processing equipment, in particular to recycled plastic preprocessing equipment and technology. Background Art

[0002] Plastic, also known as polypropylene, is widely used in various fields because of its low price and excellent processing, physical, chemical and mechanical properties. However, with the large-scale use of polypropylene, the resulting waste problem has become increasingly serious.

[0003] At present, the comprehensive utilization of waste polypropylene includes recycling, pyrolysis and incineration. Recycling refers to the use of recycled waste polypropylene through classification, cleaning, crushing, granulation and other processes to produce raw materials for plastic products for reproduction. Waste plastic products are mostly various containers. Plastic products used as containers usually have contents inside that are difficult to remove. For example, there is hard-to-remove solidified cement in the waste cement barrels at the recycling site. Simple equipment cleaning is limited by the different models of cement barrels and the strong adhesion of solidified cement. Manual cleaning is time-consuming and labor-intensive and cannot guarantee the cleaning quality, affecting reproduction.

[0004] To this end, technicians in this field have proposed a recycled plastic pretreatment device and process, and designed a recycled plastic pretreatment device that is convenient for cleaning container-type plastic products, which can conveniently replace the existing manual cleaning method and ensure and improve the cleaning efficiency of container-type plastic products. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a recycled plastic pretreatment device and process, which is designed as a plastic container processing equipment with three steps of positioning, cleaning, and bottom cutting. It can semi-automatically adjust according to the plastic container to be processed, intelligently control the advancement distance of components in each stage, and obtain better cleaning effect, thereby replacing manual rapid processing of recycled plastic raw materials.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a plastic container processing device, including an operating table, a cutting knife and a cleaning brush. A cutting knife is arranged above the operating table. After the plastic container is positioned on the operating table, the inner wall of the plastic container is cleaned by the cleaning brush, and then the cutting knife is moved close to the bottom of the plastic container to be processed to position and cut, so as to facilitate pouring out the items that need to be cleaned inside.

[0007] An electric roller is provided on the upper surface of the operating table, and the electric roller is used to press against the side wall of the plastic container and drive it to rotate, so that the rotating container is more convenient to clean and cut. A telescopic rod is provided on the upper surface of the operating table, and the cutting knife is fixed above the operating table through the telescopic rod. The telescopic rod is extended to drive the cutting knife to approach the rotating plastic container, and gradually complete the cutting of the inner bottom wall of the plastic container.

[0008] A bottoming push rod is provided at one end of the operating table, and the cleaning brush is provided on the side of the bottoming push rod. The electric roller drives the plastic container to rotate, and the bottoming push rod extends into the inside of the plastic container to contact and press against the inner bottom surface of the container to achieve positioning. During the advancement of the bottoming push rod, the cleaning brush on its side cleans the inner wall of the rotating container, and the bottoming push rod presses against the inner bottom wall of the container to help the cutting positioning of the cutting knife.

[0009] The cleaning brush scrapes the inner wall of the rotating plastic container before the bottoming push rod is pressed against the inner wall of the container, and the cutting knife is started to rotate and cut the bottom of the plastic container after the bottoming push rod completes the positioning of the inner bottom wall of the plastic container.

[0010] Preferably, the upper surface of the operating table is fixedly connected with a side panel, and the side panel serves as a mounting base for installing and adjusting various components on the operating table. Sleeves are symmetrically provided on the inner walls of the side panels above the operating table, and an electric control rod is slidably provided on the inner side of the sleeve. The two groups of electric rollers are respectively fixedly connected to the top of the electric control rod, and the electric control rod is controlled by an electric control device to advance. The electric rollers on both sides are pressed against the side walls of the plastic container by the advancement control of the electric control rod. Another group of electric rollers is fixedly provided on the upper surface of the operating table and located between the two groups of electric rollers. The three groups of electric rollers respectively press against the side walls of the plastic container in three directions to ensure the tight positioning of the side walls of the plastic container.

[0011] Preferably, a mounting cylinder is fixedly provided on the upper surface of the operating table and above the electric roller, and the mounting cylinder forms an annular mounting base above one end of the operating table. A carry rod is inserted into the inner top wall of the mounting cylinder, and a clamping roller is fixedly provided on the bottom end of the carry rod. The clamping roller connected by the carry rod cooperates with three electric rollers to position the plastic container, and a first spring is sleeved on the side of the carry rod. The first spring on the side of the carry rod provides buffering after the clamping roller presses against the inner wall of the plastic container, so as to exert a certain clamping force on the inner wall of the plastic container.

[0012] Preferably, a sleeve is annularly arranged on the inner wall of the mounting cylinder, an extrusion rod is slidably arranged on the inner side of the sleeve, the end surface of the extrusion rod extending into the inner side of the sleeve is fixedly connected to a first spring, the end of the first spring away from the extrusion rod is fixedly connected to a carry block, and the carry block is electrically controlled and arranged on the inner side of the sleeve.

[0013] The squeezing rod advances under the pushing action of the advancing block, and the advancing squeezing rod exerts an extruding action on the inner wall of the plastic container under the action of the first spring, which can destroy the solidified material on the inner wall of the plastic container and make the solidified material such as cement fall off, making it more convenient to clean with the cleaning brush. The advancing block pushes the squeezing rod through the first spring, so as to facilitate the adjustment of the squeezing force exerted by the squeezing rod on the inner wall of the plastic container, thereby achieving deformation of the side wall of the plastic container without damaging it.

[0014] Preferably, one side of the carry block is fixed with the first spring and a connecting rod is inserted through it, both ends of the connecting rod are fixedly connected with end blocks, two opposite sides of the carry block are provided with a control circuit for controlling the carry block, and the inner wall of the sleeve and the end of the extrusion rod are fixedly connected with a push rod corresponding to the connecting rod.

[0015] The connecting rod running through the carry block can switch the on and off of the circuits on both sides of the carry block as the carry direction changes, and the circuits on both sides of the carry block are control circuits for controlling the carry block to carry forward and backward respectively. As the carry block pushes the extrusion rod to apply a thrust to the side wall of the plastic container, the first spring between the extrusion rod and the carry block is deformed by the force, and the push rod arranged at the end of the extrusion rod contacts and pushes one end of the connecting rod to make it carry relative to the carry block, thereby disconnecting the previous circuit and connecting the reverse circuit, controlling the carry block to carry in the opposite direction away from the plastic container, and repeating this process, so that the extrusion rod can squeeze the side wall of the plastic container multiple times to destroy the hardened layer on the inner wall.

[0016] Preferably, a slide groove is provided on the inner wall of the mounting cylinder parallel to the operating table, and a sleeve adapted for a cutting knife is slidably engaged on the inner side of the slide groove. The cutting knife is slidably arranged above the electric roller through the sleeve, so that the cutting knife can adjust the cutting position according to the positioning of the bottoming push rod on the bottom surface of the plastic container.

[0017] The inner side of the sleeve is also provided with an electrically controlled pressing structure of a first spring and a carrying block, and the pressing structure of the first spring and the carrying block can conveniently control the carrying distance according to the pressing force required, so that the equipment can automatically control the carrying distance when processing plastic containers of different models.

[0018] A protrusion penetrating the sleeve is fixedly connected to the side of the advance block, a pitch adjusting screw is penetrated and threadedly arranged on the side of the protrusion, a limit block is arranged on the side bearing of the pitch adjusting screw, the limit block is slidably connected to the sleeve, and a limit structure corresponding to the limit block is fixedly connected to the side of the cutting knife.

[0019] The side wall of the sleeve is penetrated by a carry slot for matching the protrusion, and the carry slot is symmetrically arranged on the opposite side walls of the sleeve. The two protrusions are symmetrically arranged to ensure the stable carry of the carry block. In addition, the protrusion and the limit block are slidably connected to the sleeve through the carry slot. Due to the difference in wall thickness of plastic containers and the possibility of damage due to the elasticity of the first spring being too long, the distance between the cutting knife and the carry block is adjusted by a distance-adjusting screw arranged through the side of the protrusion to avoid the safety hazard of the cutting knife suddenly popping out after penetrating the side wall of the plastic container due to the long distance.

[0020] Preferably, a sleeve is fixedly connected to the inner wall of the side plate at one end of the operating table, the bottoming push rod is electrically controlled and arranged on the inner side of the sleeve, a mounting sleeve is slidably engaged on the side of the bottoming push rod, and the cleaning brush is slidably arranged on the side of the bottoming push rod through the mounting sleeve.

[0021] Under the control of the electronic control device, the bottoming push rod moves along the sleeve to approach the positioned plastic container. Before the bottoming push rod contacts and presses against the inner bottom of the plastic container, the cleaning brush gradually contacts the inner wall of the plastic container as the bottoming push rod moves forward to clean the inner wall of the plastic container. The cleaning brush is installed by means of a mounting sleeve with an adjustable mounting position, so that the mounting position of the cleaning brush can be adjusted accordingly according to the plastic container to be processed.

[0022] Preferably, the bottoming push rod includes a push rod body, and the push rod body is electrically controlled and arranged on the inner side of the sleeve. The push rod body advances under the control of the electronic control device. A contact rod is inserted into the end face of the extended end of the push rod body. A second spring is fixedly arranged on the inner side of the push rod body against the contact rod. The contact rod installed by the second spring gradually compresses the second spring after contacting the inner wall of the plastic container. At the same time, the second spring applies a reverse force to the contact rod. A positioning claw is fixedly arranged on the side of the end of the contact rod. The reverse force of the second spring on the contact rod helps the positioning claw to better position the inner wall of the plastic container, thereby avoiding the problem that the contact rod is easily slipped or damaged due to single-point force.

[0023] Preferably, a power-connecting metal sheet is fixedly provided on the inner bottom wall of the push rod body, and one end of the contact rod directly facing the power-connecting metal sheet is fixedly connected to a power-connecting post, and the power-connecting metal sheet and the power-connecting post are respectively connected to the electrodes of the push rod body carry control circuit.

[0024] As the electric control device drives the push rod body to advance, the contact rod arranged on the advancing end face of the push rod body first contacts the inner bottom surface of the plastic container, and as the push rod body continues to advance, the contact rod compresses the second spring under the action of pressure, and at the same time, the contact rod advances toward the inside of the push rod body. During the advancement process, the power connection post connected to the end of the contact rod contacts the power connection metal sheet and connects the control circuit of the push rod body, stopping the continued advancement of the push rod body, completing the tight positioning of the bottoming push rod against the inner bottom surface of the plastic container, and cutting the inner bottom wall of the plastic container according to the positioning data of the bottoming push rod.

[0025] A processing technology of plastic container processing equipment:

[0026] S1. Check and make sure that all parts of the equipment are operating normally, place the plastic container to be processed on the electric roller arranged on the upper surface of the operating table, the bottom surface of the plastic container is in contact with the inner wall of the side plate at the end of the operating table, and adjust the two groups of electric control rods on both sides to make the two groups of electric rollers press against the side wall of the container respectively, so as to realize the pressing and positioning of the three groups of electric rollers against the side wall of the plastic container;

[0027] Then, the advancing rod arranged on the inner top wall of the mounting cylinder is controlled to advance, and the pressing roller at the end of the advancing rod presses against the upper side wall of the plastic container, and cooperates with the three electric rollers to complete the stable positioning of the plastic container on the operating table.

[0028] S2. After the plastic container is positioned on the operating table, the electric roller is started to drive the fixed axis of the plastic container to rotate, and at the same time, the advancing block of the extrusion rod is controlled by the electric control device, and the advancing block pushes the extrusion rod to press against the outer wall of the container through the first spring and applies a certain amount of extrusion force to it to perform extrusion, so that the side wall of the plastic container is deformed, and the deformed side wall of the plastic container can destroy the solidified objects such as cement blocks hardened on the inner wall;

[0029] The side of the carrying block is penetrated by an electric rod to realize the reciprocating motion of the extrusion rod. Combined with the rotational drive of the plastic container by the electric roller, the extrusion rod repeatedly squeezes the side wall of the plastic container from multiple directions to complete the destruction of the hardened objects on the inner wall of the plastic container;

[0030] The advancement of the push rod body is controlled by an electronic control device. As the contact rod gradually approaches the inner bottom surface of the container, the cleaning brush also cleans the inner wall of the container. As the push rod body contacts and presses against the inner bottom wall of the container, the contact rod compresses the second spring and advances into the inside of the push rod body. After the contact rod advances a certain distance, the advancement control circuit of the push rod body is connected, and the advancement distance of the push rod body is intelligently controlled to complete the cleaning of the inner wall of the plastic container and simultaneously complete the positioning of the bottoming push rod on the inner bottom surface of the plastic container.

[0031] S3. After the bottoming push rod and the cleaning brush have completed positioning and cleaning the inner wall of the plastic container, the cutting position of the cutting knife is adjusted according to the positioning, and the cutting knife is started to perform rotational cutting of the inner bottom wall of the plastic container, so as to discharge the cleaned items inside the plastic container through the cutting position, thereby preventing large pieces of material from being unable to be discharged from the bottle mouth and affecting subsequent recycling processing.

[0032] The present invention discloses a recycled plastic pretreatment device and process, which has the following beneficial effects:

[0033] 1. The recycled plastic pretreatment equipment and process are designed to be a processing equipment that can accurately position the plastic container according to the shape of the plastic container, to help or replace manual labor in the rapid processing of recycled plastic containers, to ensure the cleaning effect of the recycled plastic, and to facilitate the subsequent reproduction of the recycled plastic such as pelletizing. The electric roller and other structures on the operating table are stably positioned according to the shape of the plastic container, and the possible hardening layer on the inner wall of the plastic container is processed by the extrusion rod, and the cleaning brush is driven by the bottoming push rod to clean the inner wall of the plastic container. At the same time, the bottom surface of the plastic container is located, and precise cutting is completed by the cutting knife to ensure the cleanliness of the inside of the plastic container.

[0034] 2. The recycled plastic pretreatment equipment and process has an electric roller that can be extended and set in a direction on the operating table to drive the plastic container tightly, and a pressing roller is also provided to cooperate with the electric roller to position the plastic container, ensuring that the equipment has a good positioning and driving effect for containers of different diameters. A plurality of extrusion rods are provided by installing a cylinder to form an extrusion effect on the side wall of the plastic container, which has a good destructive effect on the compaction layer on the inner wall of the plastic container.

[0035] 3. In the recycled plastic pretreatment equipment and process, the extrusion rod is connected to the carrying block through the first spring. The carrying block, driven by the electric control device, squeezes the first spring to apply appropriate pressure to the extrusion rod to ensure the breaking of the compacted layer. At the same time, an electric rod is arranged on the side of the carrying block, and a push rod is arranged to control the carrying of the electric rod. The extrusion force of the extrusion rod on the side wall of the plastic container is controlled by the push rod, and the reciprocating motion of the extrusion rod is realized at the same time. Combined with the rotating plastic container, the compacted layer on the inner wall is broken in multiple directions.

[0036] 4. The recycled plastic pretreatment equipment and process has a limit block on the side of the telescopic rod that controls the advance of the cutting knife, and a pitch-adjusting screw is provided in combination with the protrusion on the side of the advance block. The pitch-adjusting screw can realize a certain pressure effect of the cutting knife on the side wall of the plastic container, while also avoiding the problem of the cutting knife hitting the internal bottoming ejector rod due to the first spring popping out too long after the cutting is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0039] Figure 2 This is a schematic diagram of the positioning and cutting structure of the present invention;

[0040] Figure 3 This is a schematic diagram of the distribution of the electric rollers of the present invention;

[0041] Figure 4 This is a schematic diagram of the installation structure of the pressing roller of the present invention;

[0042] Figure 5 It is an assembly diagram of the extrusion rod driving structure of the present invention;

[0043] Figure 6 This is a schematic diagram of the installation structure of the cutting knife of the present invention;

[0044] Figure 7 It is a schematic diagram of the bottoming push rod structure of the present invention.

[0045] In the figure: 1. operating table; 2. cutting knife; 3. cleaning brush; 4. electric roller; 5. telescopic rod; 6. bottoming push rod; 601. push rod body; 602. contact rod; 603. second spring; 604. positioning claw; 7. side plate; 8. sleeve; 9. electric control rod; 10. mounting cylinder; 11. advance rod; 12. pressing roller; 13. first spring; 15. extrusion rod; 16. advance block; 17. connecting rod; 18. end block; 19. push rod; 20. slide groove; 22. bump; 23. pitch adjusting screw; 24. limit block; 26. mounting sleeve; 27. connecting metal sheet; 28. connecting column. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] The embodiment of the present invention discloses a recycled plastic pretreatment device and process;

[0048] According to the attached Figure 1-2 As shown, it includes an operating table 1, a cutting knife 2 and a cleaning brush 3. The cutting knife 2 and the cleaning brush 3 are arranged above the operating table 1. In addition, a bottoming push rod 6 is also arranged on the operating table 1 to help position the plastic container. The recycled plastic container is placed on the operating table 1 for positioning. After positioning, the inner wall of the container is cleaned by the cleaning brush 3. After the inner bottom surface of the plastic container is positioned, the cutting knife 2 is used to cut the bottom of the container.

[0049] A plurality of groups of electric rollers 4 are arranged on the upper surface and above the operating table 1 to tightly position the plastic parts to be processed, and the electric rollers 4 drive the positioned plastic containers to rotate, so as to facilitate the cleaning of the inner wall of the container and the cutting of the bottom.

[0050] A telescopic rod 5 is electrically driven above the operating table 1. As the telescopic rod 5 approaches the rotating plastic part, the cutting knife 2 installed at the end of the telescopic rod 5 performs rotational cutting on the positioned plastic part.

[0051] According to the attached Figure 3-4 As shown, a side panel 7 is fixedly provided at the edge position of the upper surface of the operating table 1 to facilitate the installation and adjustment of the cutting knife 2 and the bottoming push rod 6. An electric roller 4 is provided on the upper surface of the operating table 1. Sleeves 8 are symmetrically and obliquely provided on the inner walls of the side panels 7 on both sides of the electric roller 4. Electric control rods 9 are electrically installed in the two obliquely provided sleeves 8. The electric control rods 9 extend toward the intersection under the control of the electric control device. Electric rollers 4 are also provided at the ends of the electric control rods 9. The two adjustable electric rollers 4 cooperate with the electric rollers 4 provided on the upper surface of the operating table 1 to drive the plastic container placed above tightly.

[0052] A mounting cylinder 10 is fixed on the upper surface of the operating table 1. The mounting cylinder 10 is coaxially arranged with the extension intersection of the three electric rollers 4. An advance rod 11 is inserted into the inner wall of the mounting cylinder 10. A pressing roller 12 is fixed on the bottom end of the advance rod 11. The pressing roller 12 extends downward to press against the side wall of the plastic container, and cooperates with the three electric rollers 4 to press and position the plastic container placed on the operating table 1, so that the plastic container is pressed and positioned on the operating table 1, and rotates under the driving action of the three electric rollers 4.

[0053] The advance rod 11 is configured as a two-stage sleeve structure. The first-stage sleeve structure is used for the advance adjustment of the advance rod 11. A first spring 13 is provided on the side of the advance rod 11 of the second-stage sleeve structure. The sleeve structure provided by the first spring 13 provides a pressing roller 12 to contact and press against the side wall of the plastic container and then compress the first spring 13. The compressed first spring 13 provides an elastic force of the advance rod 11 on the side wall of the plastic container, thereby avoiding excessive force affecting the rotation drive of the plastic container and avoiding damage to the advance rod 11.

[0054] According to the attached Figure 5As shown, a plurality of evenly distributed squeezing rods 15 are arranged on the outside of the plastic container through the installation cylinder 10. The squeezing rods 15 are advanced to squeeze the side wall of the positioned container to deform the side wall, thereby destroying the compacted layer on the inner wall of the plastic container. For example, dry soil blocks, cement blocks, and other dried and solidified materials are squeezed and deformed by the plurality of squeezing rods 15, are destroyed and fall off, and are easier to clean.

[0055] The extrusion rod 15 is slidably installed on the inner wall of the mounting cylinder 10 through the sleeve 8, and in order to enable the extrusion rod 15 to contact the side wall of the plastic container and provide a certain extrusion effect, a carry block 16 is provided at one end of the extrusion rod 15 extending into the sleeve 8. The carry block 16 is driven by the control circuit to carry in the sleeve 8, and the carry block 16 pushes the extrusion rod 15 to carry along the sleeve 8.

[0056] The side wall of the plastic container deforms under a certain extrusion effect, but the extrusion force needs to be controlled to avoid the problem that the extrusion force is insufficient to destroy the inner wall hardening layer, or the extrusion force is too large to directly damage the plastic container. Therefore, a first spring 13 is arranged between the carrying block 16 and the extrusion rod 15. The carrying block 16 pushes the extrusion rod 15 to move forward through the first spring 13. After the extrusion rod 15 contacts and presses against the side wall of the plastic container, the carrying block 16 continues to move forward. The first spring 13 is extruded and deformed, and at the same time, there is an elastic force on the extrusion rod 15.

[0057] When the first spring 13 arranged between the extrusion rod 15 and the carry block 16 is compressed to a certain length, the elastic force of the first spring 13 on the extrusion rod 15 is moderate. At the same time, the push rod 19 arranged at the end of the extrusion rod 15 contacts and pushes the connecting rod 17 that passes through the side of the carry block 16, so that the connecting rod 17 moves relative to the carry block 16, changing the circuit connected on the side of the carry block 16. The reverse circuit drives the carry block 16 to start moving in the opposite direction, thereby causing the carry block 16 to pull the extrusion rod 15 out of contact with the side wall of the plastic container.

[0058] The connecting rod 17 is a connecting structure that penetrates the carry block 16. Limiting structure end blocks 18 are set at both ends of the connecting rod 17 to facilitate the push rod 19 to contact and push the connecting rod 17, while also preventing the connecting rod 17 from detaching from the carry block 16.

[0059] As the advancing block 16 moves close to the inner bottom surface of the sleeve 8, it is acted upon by the push rod 19 installed on the inner bottom surface of the sleeve 8 to change the advancing direction again, and the squeezing of the side wall of the plastic container by the squeezing rod 15 is repeated. As the electric roller 4 drives the plastic container to rotate, the squeezing position of the plastic container by the squeezing rod 15 changes, which has a better effect on destroying the hardened layer.

[0060] According to the attached Figure 6As shown, a slide groove 20 is provided through the side of the mounting cylinder 10, and a sleeve 8 is slidably arranged inside the slide groove 20. The telescopic rod 5 is installed through the sleeve 8 to control the advancement of the cutting knife 2. The advancement control of the cutting knife 2 also adopts a driving structure in which a first spring 13 is installed between the extrusion rod 15 and the advancement block 16, so as to adjust the pressing force of the cutting knife 2 on the side wall of the plastic container, thereby avoiding the problem that the pressing force is too large and the cutting knife 2 is easily damaged and difficult to cut.

[0061] The difference is that when the cutting knife 2 cuts the side wall of the plastic container, there is a problem that the first spring 13 pops out after the cutting is completed and the cutting knife 2 loses the obstruction of the side wall of the plastic container. The sudden popping out of the first spring 13 can easily cause the cutting knife 2 to hit the hardened block and be damaged. At the same time, there are certain safety hazards. Therefore, a protrusion 22 that penetrates the sleeve 8 is fixedly connected to the side of the carry block 16, and the protrusions 22 on the side of the carry block 16 are symmetrically installed to ensure the smooth carry of the carry block 16.

[0062] A pitch-adjusting screw 23 is provided through the side of the protrusion 22, and a limit block 24 is threadedly provided on the side of the pitch-adjusting screw 23. A limit block 24 is also provided at the end of the telescopic rod 5. The limit blocks 24 slide into position with the side wall of the sleeve 8. The limit block 24 threadedly provided on the side of the pitch-adjusting screw 23 has a limiting effect on the telescopic rod 5. The installation of the limit block 24 on the side of the sleeve 8 is controlled by rotating the pitch-adjusting screw 23. At the same time, the elastic force of the first spring 13 provided between the advance block 16 and the telescopic rod 5 is adjusted through the limiting effect between the two limit blocks 24. When the cutting knife 2 is released and pressed against the side wall of the plastic container for rotational cutting, the extrusion force is ensured, and at the same time, the cutting knife 2 is prevented from suddenly popping out after losing the resistance.

[0063] According to the attached Figure 7 As shown, a sleeve 8 is fixedly provided on one end of the operating table 1 away from the mounting cylinder 10, and a bottoming push rod 6 is slidably installed above the operating table 1 through the sleeve 8. The bottoming push rod 6 consists of a push rod body 601 and a contact rod 602. The push rod body 601 is slidably set on the inner side of the sleeve 8 through an electric control device, and the contact rod 602 is inserted into the end face of the extended end of the push rod body 601. A second spring 603 is provided on the inner side of the push rod body 601 to press against the contact rod 602, and a positioning claw 604 is provided at the extended end of the contact rod 602.

[0064] Driven by the electric control device of the ejector body 601, the sleeve 8 is extended and gradually approaches the positioned plastic container. The contact rod 602 arranged at the end of the ejector body 601 first contacts the inner bottom surface of the plastic container, and as the ejector body 601 continues to advance, the second spring 603 is compressed. At the same time, the second spring 603 exerts a reverse elastic force on the contact rod 602, so that the contact rod 602 and the positioning claw 604 arranged at the end of the contact rod 602 are pressed against the inner wall of the container. After the second spring 603 is compressed to a certain length, the power-connecting metal sheet 27 arranged inside the contact rod 602 and the ejector body 601 contacts the power-connecting column 28, so that the control circuit for controlling the advancement of the ejector body 601 is short-circuited, so that the ejector body 601 will not continue to advance, and the tight positioning against the inner bottom surface of the plastic container is maintained. The position of the sleeve 8 where the cutting knife 2 is located is adjusted accordingly according to the advancement distance of the ejector body 601 to cut the inner bottom wall of the plastic container.

[0065] When the push rod body 601 moves toward the bottom surface of the plastic container, the cleaning brush 3 installed on the side of the push rod body 601 also enters the container. In order to better adapt the equipment to the processing of plastic containers of different specifications, the cleaning brush 3 is slidably set on the side of the push rod body 601 through the mounting sleeve 26. When in use, the position of the mounting sleeve 26 on the side of the push rod body 601 can be adjusted accordingly.

[0066] When in use, the device can help manual cleaning of plastic containers, especially plastic containers with a hardened layer attached to the inner wall. The side wall of the plastic container is squeezed by the squeezing rod 15 to destroy the internal hardened layer, and the inner wall of the container is cleaned by the cleaning brush 3. Finally, according to the positioning of the bottom wall of the container by the bottoming push rod 6, the inner bottom wall of the container is cut by the cutting knife 2, which makes it convenient to pour out the objects in the container and is beneficial to the subsequent processing and granulation of the plastic container.

[0067] A processing technology of plastic container processing equipment:

[0068] S1. Check and make sure that all parts of the equipment are operating normally. Place the plastic container to be processed on the electric roller 4 arranged on the upper surface of the operating table 1. The bottom surface of the plastic container is in contact with the inner wall of the side plate 7 at the end of the operating table 1 and is tightly set. Adjust the two sets of electric control rods 9 on both sides to make the two sets of electric rollers 4 press against the side walls of the container respectively, so that the three sets of electric rollers 4 press against the side walls of the plastic container;

[0069] Then, the advancing rod 11 arranged on the inner top wall of the mounting cylinder 10 is controlled to advance, and the pressing roller 12 at the end of the advancing rod 11 presses against the upper side wall of the plastic container, and cooperates with the three electric rollers 4 to complete the stable positioning of the plastic container on the operating table 1.

[0070] S2. After the plastic container is positioned on the operating table 1, the electric roller 4 is started to drive the fixed axis of the plastic container to rotate. At the same time, the carrying block 16 of the extrusion rod 15 is controlled by the electric control device. The carrying block 16 pushes the extrusion rod 15 against the outer wall of the container through the first spring 13 and applies a certain amount of extrusion force to it to extrude it. The extrusion causes the side wall of the plastic container to deform. The deformed side wall of the plastic container can destroy the solidified objects such as cement blocks that are hardened on the inner wall;

[0071] The side of the carrying block 16 is penetrated by a connecting rod 17 to realize the reciprocating motion of the extrusion rod 15. Combined with the rotational drive of the electric roller 4 on the plastic container, the extrusion rod 15 repeatedly squeezes the side wall of the plastic container from multiple directions to complete the destruction of the hardened objects on the inner wall of the plastic container;

[0072] The push rod body 601 is advanced by controlling the electric control device. As the contact rod 602 gradually approaches the inner bottom surface of the container, the cleaning brush 3 also cleans the inner wall of the container. As the push rod body 601 contacts and presses against the inner bottom wall of the container, the contact rod 602 compresses the second spring 603 and advances into the push rod body 601. After the contact rod 602 advances a certain distance, the advancement control circuit of the push rod body 601 is connected, and the advancement distance of the push rod body 601 is intelligently controlled to complete the cleaning of the inner wall of the plastic container and simultaneously complete the positioning of the bottoming push rod 6 on the inner bottom surface of the plastic container.

[0073] S3. After the bottoming push rod 6 and the cleaning brush 3 have completed positioning and cleaning the inner wall of the plastic container, the cutting position of the cutting knife 2 is adjusted according to the positioning data of the bottoming push rod 6, and the cutting knife 2 is started to perform rotational cutting of the bottom wall of the plastic container, so as to discharge the cleaned items inside the plastic container through the cutting position, thereby preventing large pieces of material from being unable to be discharged from the bottle mouth and affecting subsequent recycling processing.

[0074] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A plastic container processing device, comprising an operating table (1), a cutting knife (2) and a cleaning brush (3), wherein the cutting knife (2) is arranged above the operating table (1), and the cutting knife (2) is used to position and cut the bottom of the plastic container to be processed on the operating table (1), and the cleaning brush (3) is used to clean the inner wall of the plastic container, characterized in that: The upper surface of the operating table (1) is provided with an electric roller (4), the upper surface of the operating table (1) is provided with a telescopic rod (5), the cutting knife (2) is fixedly arranged above the operating table (1) via the telescopic rod (5), one end of the operating table (1) is provided with a bottoming push rod (6), the cleaning brush (3) is arranged on the side of the bottoming push rod (6), the electric roller (4) drives the plastic container to rotate, the bottoming push rod (6) extends into the inside of the plastic container to contact and tightly against the bottom surface of the container to achieve positioning, the bottoming push rod (6) achieves positioning before the cleaning brush (3) rotates and cleans the inner wall of the plastic container, and after the bottoming push rod (6) completes positioning, the cutting knife (2) is started to perform rotational cutting on the bottom of the plastic container; A mounting cylinder (10) is fixedly provided on the upper surface of the operating table (1) and located above the electric roller (4); an advance rod (11) is inserted into the inner top wall of the mounting cylinder (10); a pressing roller (12) is fixedly provided at the bottom end of the advance rod (11); and a first spring (13) is sleeved on the side of the advance rod (11).

2. The plastic container processing equipment according to claim 1, characterized in that: The upper surface of the operating table (1) is fixedly connected to a side plate (7), the inner wall of the side plate (7) above the operating table (1) is symmetrically provided with a sleeve (8), the inner side of the sleeve (8) is slidably provided with an electric control rod (9), the two groups of electric rollers (4) are respectively fixedly connected to the top of the electric control rod (9), and another group of electric rollers (4) is fixedly provided on the upper surface of the operating table (1) and located between the two groups of electric rollers (4).

3. The plastic container processing equipment according to claim 1, characterized in that: The inner wall of the mounting cylinder (10) is provided with a sleeve (8) in an annular shape, and an extrusion rod (15) is slidably provided inside the sleeve (8). The end surface of the extrusion rod (15) extending into the inner side of the sleeve (8) is fixedly connected to a first spring (13), and one end of the first spring (13) away from the extrusion rod (15) is fixedly connected to a carry block (16), and the carry block (16) is electrically controlled and arranged inside the sleeve (8).

4. The plastic container processing equipment according to claim 3, characterized in that: A power rod (17) is inserted through one side of the carry block (16) on which the first spring (13) is fixed, and both ends of the power rod (17) are fixedly connected to end blocks (18), and two opposite sides of the carry block (16) are provided with a control circuit for controlling the carry of the carry block (16), and a push rod (19) corresponding to the power rod (17) is fixedly connected to the inner wall of the sleeve (8) and the end of the extrusion rod (15).

5. The plastic container processing equipment according to claim 3, characterized in that: The inner wall of the mounting cylinder (10) is parallel to the operating table (1) and is provided with a slide groove (20). A sleeve (8) adapted to the cutting knife (2) is slidably engaged with the inner side of the slide groove (20). The cutting knife (2) is slidably arranged above the electric roller (4) through the sleeve (8). The inner side of the sleeve (8) is also provided with an electrically controlled abutting structure of a first spring (13) and a carry block (16). A convex block (22) penetrating the sleeve (8) is fixedly connected to the side of the carry block (16). A pitch adjusting screw (23) is threadedly arranged through the side of the convex block (22). A side bearing of the pitch adjusting screw (23) is provided with a limit block (24). The limit block (24) is slidably connected to the sleeve (8). A limit structure corresponding to the limit block (24) is fixedly connected to the side of the cutting knife (2).

6. The plastic container processing equipment according to claim 1, characterized in that: A sleeve (8) is fixedly connected to the inner wall of a side plate (7) at one end of the operating table (1); the bottoming push rod (6) is electrically controlled and arranged inside the sleeve (8); a mounting sleeve (26) is slidably engaged with the side of the bottoming push rod (6); and the cleaning brush (3) is slidably arranged on the side of the bottoming push rod (6) via the mounting sleeve (26).

7. The plastic container processing equipment according to claim 6, characterized in that: The bottoming push rod (6) comprises a push rod body (601), the push rod body (601) is electrically controlled and arranged on the inner side of the sleeve (8), a contact rod (602) is inserted and arranged on the end face of the extended end of the push rod body (601), a second spring (603) is fixedly arranged on the inner side of the push rod body (601) against the contact rod (602), and a positioning claw (604) is fixedly arranged on the side of the end of the contact rod (602).

8. The plastic container processing equipment according to claim 7, characterized in that: An electric connection metal sheet (27) is fixedly provided on the inner bottom wall of the push rod body (601); an end of the contact rod (602) directly opposite to the electric connection metal sheet (27) is fixedly connected to an electric connection post (28); the electric connection metal sheet (27) and the electric connection post (28) are respectively connected to electrodes of a carry control circuit of the push rod body (601).

9. A processing process for a plastic container processing device according to any one of claims 1 to 8, characterized in that: S1. Check and confirm that all parts of the equipment are operating normally, place the plastic container to be processed on the electric roller (4), adjust the two sets of electric control rods (9) on both sides to advance so that the two sets of electric rollers (4) are pressed against the side wall of the container, and then control the advance rod (11) to advance so that the pressing roller (12) at the end of the advance rod (11) is pressed against the side wall of the plastic container, thereby completing the positioning of the plastic container on the operating table (1); S2, after the plastic container is positioned on the operating table (1), the electric roller (4) is started to drive the fixed axis of the plastic container to rotate, and at the same time, the carrying block (16) is driven to carry forward, and the carrying block (16) pushes the extrusion rod (15) through the first spring (13) to press against the outer wall of the container and exert an extrusion force thereon, so that the plastic container is deformed and the solidified object is destroyed by the extrusion, and then the push rod body (601) is controlled to carry forward, and in the process that the contact rod (602) gradually approaches the inner bottom surface of the container, the cleaning brush (3) cleans the inner wall of the container, and as the push rod body (601) contacts and presses against the inner bottom wall of the container, the contact rod (602) carries forward into the push rod body (601), and after the contact rod (602) carries forward a certain distance, the control circuit is turned on, and the carrying distance of the push rod body (601) is intelligently controlled, so that the cleaning of the inner wall of the plastic container is completed; S3. After the inner wall of the plastic container is cleaned, the cutting knife (2) is started to cut the inner bottom wall of the plastic container to discharge the cleaned items inside the plastic container. The cutting position of the cutting knife (2) is set according to the advance distance of the push rod body (601). The cutting knife (2) gradually approaches the rotating plastic container and completes the cutting of the side wall of the plastic container, so as to facilitate the pouring out of the objects inside the container and the subsequent washing process of the container.

Images