A modified plastic granulator

Abstract

The present invention relates to the technical field of granulators, specifically a modified plastic granulator, comprising a shell, a winding wheel is rotatably installed in the shell, a granulating device is fixedly installed at the bottom of the shell, and a discharge port is provided on the side wall of the shell; an upper cover that cooperates with the shell is provided on the shell, a feed port is provided on the upper cover, and an automatic feeding device is fixedly installed on the feed port; an automatic feeding mechanism for automatic feeding is installed on one side of the shell; an automatic cutting mechanism is fixedly installed on the upper cover, and the automatic cutting mechanism is located above the feed port. The present invention integrates automatic feeding and automatic cutting into one device through an automatic feeding mechanism, an automatic cutting structure and an automatic feeding device, and does not need to set up a conveyor belt with a large floor space for transportation, so as to prevent the plastic film from floating up and scattering around due to the light texture under the influence of the outside world, causing the technical problem of troublesome cleaning.

Description

Technical Field

[0001] The invention relates to the technical field of granulators, in particular to a modified plastic granulator. Background Art

[0002] The existing granulation process is to manually feed the collected film, plastic, etc. into the entrance of the granulator, or to pre-cut the plastic film into multiple sections using a cutting machine, and then put the cut film on a conveyor belt, which then conveys the cut film plastic to the feed port of the granulator. The cut film plastic automatically falls into the feed port of the granulator, and the granulator then dissolves and squeezes the film plastic entering the granulator, thereby completing the granulation process.

[0003] In the above granulation process, the plastic film needs to be crushed and cut and placed on a conveyor belt for movement into the granulation equipment. The conveyor belt occupies a large area. When transported on the conveyor belt, it is easy to float up due to its light texture and scatter everywhere under the influence of external factors, causing trouble for cleaning.

[0004] Therefore, a modified plastic granulator is proposed to solve the above technical problems. Summary of the invention

[0005] The object of the present invention is to provide a modified plastic granulator, which automatically feeds plastic film through an automatic feeding mechanism and automatically cuts material through an automatic cutting mechanism, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A modified plastic granulator, comprising:

[0008] A shell, a winding wheel is rotatably installed in the shell, a granulating device is fixedly installed at the bottom of the shell, a discharge port is opened on the side wall of the shell, and an automatic feeding device is fixedly installed on the feed port;

[0009] An upper cover, the outer shell is provided with an upper cover that cooperates with the outer shell, the upper cover is provided with a feed inlet, and the upper cover is provided with a feed inlet;

[0010] An automatic feeding mechanism, wherein an automatic feeding mechanism for automatic feeding is installed on one side of the shell;

[0011] An automatic material cutting mechanism is fixedly mounted on the upper cover and is located above the material feed port.

[0012] Preferably, the automatic feeding mechanism comprises:

[0013] A fixing frame, wherein the fixing frame is fixedly placed on one side of the housing, and a motor is fixedly mounted on a side wall of the fixing frame away from the housing;

[0014] A first sprocket, the output end of the motor is fixedly connected with the first sprocket, a second sprocket symmetrical to the first sprocket is rotatably mounted on the side wall of one end of the fixing frame close to the housing, a chain is sleeved on the first sprocket and the second sprocket, and a plurality of support rods are evenly fixedly connected to the side wall of the chain;

[0015] The first support frame is fixedly connected to the top wall of the fixed frame, the first sprocket and the second sprocket are both located inside the first support frame, and the first support frame is provided with a first slide groove.

[0016] An automatic switch is fixedly installed on one side of the fixing frame close to the housing, and the automatic switch includes:

[0017] A shell, wherein the shell is fixedly mounted on one end of the fixing frame close to the outer shell;

[0018] A rotating block, the housing is rotatably mounted with the rotating block, one end of the rotating block is fixedly connected with the first electric block;

[0019] The second electric block is elastically connected to the bottom wall of the first electric block via a second spring, and both the first electric block and the second electric block are electrically connected to the motor.

[0020] Preferably, elastic mechanisms for automatically triggering the rotation of the motor are fixedly mounted on the plurality of support rods.

[0021] Preferably, the elastic mechanism comprises:

[0022] A rotating block, the supporting rod is rotatably mounted with the rotating block, a bottom wall of the rotating block is provided with a third sliding groove, and the third sliding groove is slidably connected with a first connecting rod;

[0023] A second connecting rod, wherein one end of the first connecting rod away from the rotating block is rotatably connected to the second connecting rod, and one end of the second connecting rod away from the first connecting rod is fixedly connected to the third connecting rod via a rotating shaft;

[0024] A first spring is elastically connected to the bottom wall of the third connecting rod.

[0025] Preferably, the automatic feeding device comprises:

[0026] A material guiding channel, wherein a material guiding channel cooperating with the material feeding port is fixedly installed on the material feeding port;

[0027] An air exhaust fan is fixedly installed on the side wall of the material guiding channel, and the air inlet of the air exhaust fan is connected to the material guiding channel.

[0028] Preferably, two rotating sleeves are sleeved on the support rod, and one end of the rotating block is fixedly connected to a baffle.

[0029] Preferably, a cylinder is fixedly installed at the opening of the material guiding channel, and a heat sealing knife is fixedly connected to the output end of the cylinder.

[0030] Preferably, a revolving door is rotatably mounted on the side wall of the fixing frame away from the motor, and a second sliding groove corresponding to the first sliding groove is provided on the revolving door.

[0031] Preferably, the side wall of the second slide groove facing the first slide groove is an arc-shaped side wall, and the end of the support rod away from the chain is an arc-shaped end surface.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. The present invention places multiple rolls on the automatic loading mechanism by arranging an automatic loading mechanism, an automatic cutting structure and an automatic feeding device. The automatic loading mechanism rotates a roll of plastic film to above the feeding port. At this time, each roll of plastic film is completely disassembled manually, and the film plastic contacts the winding wheel by the traction of gravity. The winding wheel is driven to rotate by the motor in the prior art, so that the plastic film is rolled into the granulator, and the plastic film can be fed into the granulator without the need for a conveyor belt to convey the film. An automatic cutting mechanism is arranged above the feeding port to cut the plastic film regularly.

[0034] By integrating automatic loading and automatic cutting into one device, there is no need to set up a large conveyor belt for transportation, which can prevent the plastic film from floating up and scattering everywhere due to its light texture and causing trouble for cleaning, thereby improving the overall processing efficiency.

[0035] 2. The present invention fixes an automatic switch for controlling the power on and off of the motor on a fixed frame, and fixes an elastic mechanism on a support rod. The elastic mechanism contacts the automatic switch and the support rod contacts the automatic switch, so that the motor is automatically powered off during automatic loading and feeding, and automation can be achieved using a simple mechanism.

[0036] 3. An air extractor is fixedly installed on the side wall of the material guide channel to extract the gas in the material guide channel, so that the air pressure outside the material guide channel is greater than the air pressure inside the material guide channel. The atmospheric pressure presses the plastic film into the material guide channel and continuously presses the plastic film onto the winding wheel, so that the plastic film can be pressed onto the winding wheel without manual labor or other tools, thereby improving the safety of the feeding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0038] Figure 2It is a schematic diagram of the sprocket installation structure of the present invention;

[0039] Figure 3 It is a schematic diagram of the chain installation structure of the present invention;

[0040] Figure 4 It is a schematic diagram of the internal structure of the support rod of the present invention;

[0041] Figure 5 It is a schematic diagram of the automatic switch structure of the present invention;

[0042] Figure 6 It is a schematic diagram of the internal structure of the housing of the present invention;

[0043] Figure 7 It is a schematic diagram of the structure of the rotating block part of the present invention;

[0044] Figure 8 It is another side view of the overall structure of the present invention.

[0045] In the figure: 1. shell; 2. upper cover; 3. fixing frame; 4. motor; 5. first sprocket; 6. first supporting frame; 7. chain; 8. supporting rod; 9. first slide; 10. rotating block; 11. first connecting rod; 12. second connecting rod; 13. third connecting rod; 14. first spring; 15. first electric block; 16. second electric block; 17. second spring; 18. material guide channel; 19. vacuum pump; 20. cylinder; 21. heat sealing knife; 22. revolving door; 23. second slide; 24. discharge port; 25. winding wheel; 26. rotating block; 27. embedded block; 28. second sprocket; 29. ​​automatic switch; 30. rotating sleeve; 31. rotating shaft; 32. shell; 33. granulating device; 34. third slide; 35. feeding port; 36. baffle. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0048] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] See also Figures 1 to 8 The present invention provides a modified plastic granulator, and the technical solution is as follows:

[0050] The outer shell 1 has a material reel 25 rotatably mounted inside the outer shell 1, a granulating device 33 fixedly mounted at the bottom of the outer shell 1, and a material outlet 24 is provided on the side wall of the outer shell 1;

[0051] The upper cover 2 is provided on the outer shell 1 and cooperates with the outer shell 1. The upper cover 2 is provided with a feed port 35. The upper cover 2 is provided with a feed port 35, and an automatic feed device is fixedly installed on the feed port 35.

[0052] An automatic feeding mechanism, an automatic feeding mechanism for automatic feeding is installed on one side of the housing 1;

[0053] Automatic material cutting mechanism: an automatic material cutting mechanism is fixedly mounted on the upper cover 2 and is located above the material feed port 35 .

[0054] When granulation is carried out, the film plastic is placed on the feed port 35 on the upper cover 2, and the film contacts the winding wheel 25 rotatingly installed on the inner wall of the outer shell 1. The winding wheel 25 is driven to rotate by the motor in the prior art to pull the film downward and roll it into the granulation device 33 located below the winding wheel 25. The granulation device 33 performs granulation processing. After the granulation is completed, the particles flow out from the discharge port 24 at the bottom of the outer shell 1, thereby completing the granulation process. This is the prior art and will not be described in detail. An automatic feeding mechanism is installed on one side of the outer shell 1. Before processing, multiple rolls of complete film are placed on the automatic feeding mechanism manually. After placement is completed, the automatic feeding mechanism rotates a roll of plastic film to the top of the feed port 35. At this time, each roll of plastic film is completely disassembled manually, and the film plastic contacts the winding wheel 25 by gravity. The winding wheel 25 is driven to rotate by the motor in the prior art, thereby rolling the plastic film into the granulator, so that the plastic film can be fed into the granulator without the need for a conveyor belt to convey the film, thereby reducing the use of equipment.

[0055] An automatic cutting mechanism is fixedly installed on the upper cover 2, and the automatic cutting mechanism is located above the feed port 35. The plastic film passes through the automatic cutting mechanism and enters the feed port 35. The automatic cutting mechanism regularly cuts the plastic film entering the feed port 35, thereby realizing cutting a roll of plastic film into multiple sections of plastic film, preventing the plastic film entering the granulator from being too long within a period of time, causing the winding wheel 25 in the granulator to be blocked. In the prior art, it is necessary to use a cutting machine to divide the plastic film in advance, and then put the divided plastic film on a conveyor belt, and the conveyor belt puts the plastic film into the feed channel of the granulator. The equipment of the present invention has a compact structure and occupies a small area, eliminating the need to use a transmission belt to transport the plastic film in the existing structure, thereby preventing the plastic film from floating up and scattering under the influence of the outside world due to its light texture, causing the trouble of cleaning, thereby improving production efficiency.

[0056] As an embodiment of the present invention, refer to Figures 1 to 3 , the automatic feeding mechanism includes:

[0057] A fixing frame 3 is fixedly placed on one side of the housing 1, and a motor 4 is fixedly mounted on the side wall of the fixing frame 3 away from the housing 1;

[0058] A first sprocket 5 is fixedly connected to the output end of the motor 4, and a second sprocket 28 symmetrical to the first sprocket 5 is rotatably mounted on the side wall of one end of the fixing frame 3 close to the housing 1. A chain 7 is sleeved on the first sprocket 5 and the second sprocket 28, and a plurality of support rods 8 are evenly fixedly connected to the side wall of the chain 7;

[0059] The first support frame 6 is fixedly connected to the top wall of the fixed frame 3 , the first sprocket 5 and the second sprocket 28 are both located in the first support frame 6 , and a first slide groove 9 is opened on the first support frame 6 .

[0060] When the loading operation is performed, multiple rolls of plastic film are manually disassembled and assembled in advance, and then the multiple rolls of plastic film are inserted into multiple support rods 8. The plastic film without an intermediate sleeve is used here, and the power supply of the motor 4 is turned on. The motor 4 is powered on and rotates. The motor 4 drives the first sprocket 5 to rotate, and the first sprocket 5 drives the second sprocket 28 to rotate through the chain 7. The chain 7 is located in the first slide groove 9. The chain 7 rotates in the first slide groove 9. The support rod 8 is fixedly connected to the side wall of the chain 7. Since the support rod 8 is cylindrical, and the end of the support rod 8 close to the chain 7 abuts against the inner wall of the first slide groove 9, the first slide groove 9 is used to limit the support rod 8 in the vertical direction. The motor 4 drives the first sprocket 5 rotates, thereby driving the chain 7 to rotate in the first slide groove 9, and the chain 7 drives the support rod 8 to move along the first slide groove 9, thereby driving a roll of film on the support rod 8 to rotate. When one roll of film is rotated to above the feed port 35, the motor 4 stops rotating. Since the plastic film has been unpacked in advance, the film naturally sags due to gravity and contacts the automatic feeding mechanism located on the upper cover 2. The automatic feeding mechanism sucks the film into the feed port 35. After entering the feed port 35, the plastic film contacts the winding wheel 25. The above mechanism realizes automatic feeding and automatically feeds the plastic film into the feed port 35, ensuring that the automatic feeding can be achieved while ensuring that the plastic film can smoothly enter the feed port 35.

[0061] As an embodiment of the present invention, refer to Figure 1 and Figure 5 An automatic switch 29 is fixedly installed on one side of the fixing frame 3 close to the housing 1, and the automatic switch 29 includes:

[0062] The housing 32 is fixedly mounted on one end of the fixing frame 3 close to the outer shell 1;

[0063] A rotating block 26 is rotatably mounted on the housing 32, and one end of the rotating block 26 is fixedly connected to the first electric block 15;

[0064] The second electric block 16 is elastically connected to the bottom wall of the first electric block 15 via a second spring 17 , and both the first electric block 15 and the second electric block 16 are electrically connected to the motor 4 .

[0065] When one of the multiple support rods 8 is rotated to the side closest to the outer shell 1, the first electric block 15 contacts the second electric block 16 due to the elastic tension of the second spring 17, thereby continuously ensuring that the power supply of the motor 4 is connected, and the support rod 8 contacts one end of the rotating block 26, applies pressure to one end of the rotating block 26, and the rotating block 26 rotates, thereby pulling the first electric block 15 to move along the direction of the second spring 17, and the first electric block 15 is disengaged from the second electric block 16, thereby disconnecting the power supply of the motor 4, and the motor 4 stops rotating. At this time, the plastic film roll and the support rod 8 are just in front of the automatic feeding device, and the automatic feeding device starts to suck the plastic film into the feed port 35. In the above scheme, by setting an automatic switch 29, the support rod 8 contacts the automatic switch 29, and the motor 4 is automatically powered off during the automatic feeding process, and automation can be achieved using a simple mechanism.

[0066] As an embodiment of the present invention, refer to Figure 1 and Figure 4 , elastic mechanisms for triggering automatic switches 29 are fixedly mounted on the multiple support rods 8.

[0067] An elastic mechanism is fixedly installed on the support rod 8. When the support rod 8 is rotated to the automatic switch 29, the elastic mechanism on the support rod 8 contacts the rotating block 26, thereby applying pressure to the end of the rotating block 26 away from the first electric block 15, so that the first electric block 15 is moved away from the second electric block 16, and the motor 4 is powered off and stops rotating. When the plastic film on the support rod 8 is used up, the pressure on the elastic mechanism is cancelled, the elastic mechanism leaves the surface of the rotating block 26, and the pressure on the rotating block 26 is cancelled. The first electric block 15 is pulled by the second spring 17 and contacts the second electric block 16. The motor 4 is powered on and rotates, and the support rod 8 without the plastic film is moved away from the feed port 35 of the automatic feeding device, and the support rod 8 with the plastic film is brought to the front of the feed port 35 of the automatic feeding device. Since the elastic mechanism is subjected to the pressure of the film, when the support rod 8 is rotated in front of the automatic switch 29, the elastic mechanism contacts the rotating block 26 and applies pressure to the rotating block 26, the first electric block 15 is separated from the second electric block 16, and the motor 4 is powered off and stops rotating.

[0068] As an embodiment of the present invention, refer to Figure 4 and Figure 7 , the elastic mechanism includes:

[0069] A rotating block 10 is rotatably mounted on the support rod 8, a third sliding groove 34 is provided on the bottom wall of the rotating block 10, and the first connecting rod 11 is slidably connected to the third sliding groove 34;

[0070] The second connecting rod 12 is rotatably connected to the end of the first connecting rod 11 away from the rotating block 10, the end of the second connecting rod 12 away from the first connecting rod 11 is fixedly connected to the third connecting rod 13 through the rotating shaft 31, and the end of the third connecting rod 13 away from the rotating shaft 31 is fixedly connected to the locking block 27;

[0071] First spring 14: The bottom wall of the third connecting rod 13 is elastically connected with the first spring 14.

[0072] The rotating block 10 is rotatably installed on the support rod 8, and the support rod 8 is provided with a built-in cavity. When multiple rolls of plastic film are placed manually, the inner wall of the plastic film is tightly attached to the side wall of the support rod 8, thereby forming a downward pressure on the rotating block 10. The rotating block 10 rotates, driving the first connecting rod 11 to move downward, and the first connecting rod 11 drives the second connecting rod 12 to rotate downward. One end of the first connecting rod 11 is slidably installed in the third sliding groove 34 and can rotate in the third sliding groove 34. The first connecting rod 11 can slide along the third sliding groove 34 without interference. Since the third connecting rod 13 is fixedly connected to one end of the second connecting rod 12 and is rotatably installed on the rotating shaft 31 together, when the second connecting rod 12 rotates downward around the rotating shaft 31, the third connecting rod 13 rotates upward, driving the embedded block 27 to move upward, and the embedded block 27 moves to exceed the outside of the support rod 8. When the support rod 8 moves to the automatic switch 29, the embedded block 27 contacts the rotating block 26 and applies pressure to the rotating block 26 , the rotating block 26 drives the first electric block 15 to disengage from the second electric block 16, the motor 4 is powered off, and the embedded block 27 is elastically connected to the inner wall of the support rod 8 through the first spring 14. When the embedded block 27 moves upward, the first spring 14 is elastically stretched. When the plastic film on the support rod 8 is used up, the pressure on the rotating block 10 is cancelled, the first spring 14 elastically contracts, and the embedded block 27 is pulled back into the support rod 8, and the pressure on the rotating block 26 is cancelled. The second spring 17 elastically contracts, and the first electric block 15 contacts the second electric block 16 to turn on the power of the motor 4, and the support rod 8 without the plastic film is taken away from the position of the automatic switch 29, and the support rod 8 with the plastic film is rotated to the automatic switch 29. At this time, the embedded block 27 contacts the rotating block 26 again, thereby disconnecting the power of the motor 4. Through the above mechanism, the automatic material changing process of the automatic feeding mechanism is realized, and the automatic material changing can be realized using a simple structure, which reduces the complexity of the equipment and the operation steps.

[0073] As an embodiment of the present invention, refer to Figure 1 and Figure 6 , the automatic feeding device includes:

[0074] A material guiding channel 18 is fixedly mounted on the feed port 35 and cooperates with the feed port 35;

[0075] An air exhaust fan 19 is fixedly installed on the side wall of the material guiding channel 18 , and an air inlet of the air exhaust fan 19 is connected to the material guiding channel 18 .

[0076] When the plastic film is rotated to the automatic switch 29, the plastic film is just in front of the material guide channel 18. Since the plastic film has been unpacked, the plastic film sags downward due to gravity and is blocked at the feeding position of the material guide channel 18. At this time, the vacuum fan 19 is started to transport the gas in the material guide channel 18 to the outside of the material guide channel 18, so that the atmospheric pressure outside the material guide channel 18 is greater than the pressure inside the material guide channel 18. The atmospheric pressure pressurizes the plastic film in the material guide channel 18. After the vacuum fan 19 has exhausted air for a certain period of time, the plastic film is pressed by the atmospheric pressure onto the winding wheel 25. The winding wheel 25 continuously winds the plastic film, thereby realizing automatic feeding. There is no need to use manual or other tools to press the plastic film onto the winding wheel 25, thereby improving the safety of the feeding operation.

[0077] As an embodiment of the present invention, refer to Figure 4 Two rotating sleeves 30 are sleeved on the support rod 8, and a baffle 36 is fixedly connected to one end of the rotating block 10.

[0078] After the plastic film is tightly attached to the winding wheel 25, the winding wheel 25 rotates and pulls the plastic film, so that the plastic film roll rotates along the support rod 8. Two rotating sleeves 30 are sleeved on the support rod 8. The two rotating sleeves 30 are located on both sides of the elastic mechanism. The plastic film roll is tightly attached to the two rotating sleeves 30. After pressure is applied to the rotating block 10, the rotating block 10 rotates downward under the pressure. The upper surface of the rotating block 10 is flush with the cylindrical surface of the rotating sleeve 30. When the plastic film roll is rotated, the rotating sleeve 30 is driven to rotate, so that the plastic film roll can keep the pressure on the rotating block 10 while rotating. Add pressure to improve the convenience of feeding and ensure that the plastic film will not be stuck on the rotating block 10 and cannot rotate during the feeding process. A baffle 36 is fixedly connected to one end of the rotating block 10. The bottom wall of the baffle 36 is always located in the built-in cavity, and the side wall of the baffle 36 is flush with the side wall of the rotating block 10 to prevent the rotating sleeve 30 on the left from radially moving to the bottom of the rotating block 10 and interfering with the rotation of the rotating block 10. The upper surface of the rotating block 10 is an arc-shaped end face, and the radius of the arc-shaped end face is equal to the arc radius of the rotating sleeve 30, thereby reducing the friction between the plastic film and the rotating block 10.

[0079] As an embodiment of the present invention, refer to Figure 1 and Figure 6 A cylinder 20 is fixedly installed at the opening of the material guiding channel 18 , and a heat sealing knife 21 is fixedly connected to the output end of the cylinder 20 .

[0080] Since the winding wheel 25 will be blocked if it rolls in too long a plastic film at the same time, it is necessary to cut the plastic film so that the plastic film entering the winding wheel 25 will not be too long within a period of time. The cylinder 20 is fixedly installed at the opening of the material guide channel 18, and the heat sealing knife 21 is fixedly connected to the output end of the cylinder 20. After the cylinder 20 is powered on, the telescopic rod on the cylinder 20 drives the heat sealing knife 21 to move downward, and cooperates with the bottom of the material guide channel 18 to cut the plastic film. The cylinder 20 is powered on and off at a scheduled time through the control system in the prior art. The plastic film is cut regularly to achieve the goal of dividing the plastic film into multiple sections, which then contact the winding wheel 25 on the granulator to prevent the winding wheel 25 from being blocked by an excessively long plastic film. In addition, compared with the prior art in which the cutting machine crushes the plastic film at a distance from the granulator, causing the plastic film to move a long distance on the conveyor belt before the granulation process can begin, the heat sealing knife 21 and other related structures of the present application are close to the entrance of the granulator, quickly enter and are processed, further reducing the tendency of the crushed plastic film fragments to float when moving on the conveyor belt.

[0081] As an embodiment of the present invention, refer to Figure 1 and Figure 2 A revolving door 22 is rotatably mounted on the side wall of the fixing frame 3 away from the motor 4 , and a second sliding groove 23 corresponding to the first sliding groove 9 is opened on the revolving door 22 .

[0082] A revolving door 22 is rotatably installed on the side wall of the fixing frame 3 away from the motor 4. After many rolls of plastic film are placed manually, the revolving door 22 is closed. At this time, the end of the support rod 8 away from the fixing frame 3 corresponds to the second slide groove 23 and is embedded in the second slide groove 23. The second slide groove 23 supports one end of the support rod 8 to prevent the support rod 8 from being plastically deformed due to lack of supporting force at one end of the support rod 8 after the plastic film is placed, thereby ensuring that the support rod 8 is in a horizontal position and that the feeding is smooth. A lubricant is coated on the inner wall surface of the second slide groove 23 to reduce the friction between the support rod 8 and the second slide groove 23 and reduce wear.

[0083] As an embodiment of the present invention, refer to Figure 1 The side wall of the second slide groove 23 facing the first slide groove 9 is an arc-shaped side wall, and the end of the support rod 8 away from the chain 7 is an arc-shaped end surface.

[0084] Since the end of the support rod 8 will tilt downward due to the effect of gravity when the revolving door 22 is not closed, it cannot be accurately aligned with the second slide groove 23, the side wall of the second slide groove 23 is set to be an arc shape, and the end of the support rod 8 away from the chain 7 is also set to be an arc end face. When the revolving door 22 is closed, the two arc end faces are in contact, forming a guiding effect in the vertical direction, so that the support rod 8 automatically aligns with the second slide groove 23 when the revolving door 22 is closed, thereby improving the convenience of operation.

[0085] Working principle: When carrying out granulation processing, a plurality of unpacked plastic film rolls are manually put on the support rod 8. When the placement is completed, the revolving door 22 is manually closed, and the power of the motor 4 is turned on to start the granulation processing. The motor 4 drives the sprocket to rotate, so that the chain 7 rotates in the first slide groove 9, and the plastic film is rotated to the front of the opening of the guide channel 18. At this time, the clamping block 27 on the elastic mechanism contacts the rotating block 26, so that the first electric block 15 is separated from the second electric block 16, and the motor 4 is powered off and stops rotating. At this time, the vacuum pump 19 is powered on and started to suck the plastic film into the guide channel 18, and the film is pressed onto the winding wheel 25 by atmospheric pressure. The winding wheel 25 rotates and winds the film. After the film enters the guide channel 18 for a period of time, the cylinder 20 is powered on and started, driving the heat sealing knife 21 to move downward to cut the plastic film, so as to prevent the plastic film that passes into the guide channel 18 for a period of time from being too long, causing The winding wheel 25 is blocked. When a roll of plastic film is used up, the plastic film removes the pressure on the rotating block 10, and the second spring 17 contracts inwardly, driving the clamping block 27 to contract inside the support rod 8, removing the pressure on the rotating block 26. The first electric block 15 contacts the second electric block 16, and the motor 4 is powered on and rotated, and the support rod 8 without plastic film is taken away from the automatic switch 29, and the support rod 8 with plastic film is rotated to the automatic switch 29, and the clamping block 27 contacts the rotating block 26, the first electric block 15 is disengaged from the second electric block 16, and the motor 4 is powered off and stops rotating, thereby realizing the automatic material changing process. Through the above scheme, automatic loading, automatic cutting, and automatic feeding are integrated into one device for operation, thereby reducing the number of equipment used and the number of operating steps, thereby avoiding the plastic film from floating up and scattering everywhere due to its light texture under the influence of the outside world, causing the trouble of cleaning, thereby improving production efficiency.

[0086] 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 modified plastic granulator, comprising: A shell (1), a material reel (25) being rotatably mounted inside the shell (1), a granulation device (33) being fixedly mounted at the bottom of the shell (1), and a material discharge port (24) being provided on a side wall of the shell (1); An upper cover (2), the outer shell (1) is provided with an upper cover (2) which cooperates with the outer shell (1), the upper cover (2) is provided with a feed port, and an automatic feed device is fixedly installed on the feed port; An automatic feeding mechanism, wherein an automatic feeding mechanism for automatic feeding is installed on one side of the housing (1); An automatic material cutting mechanism, the upper cover (2) is fixedly mounted with the automatic material cutting mechanism, and the automatic material cutting mechanism is located above the material feed port; The automatic feeding mechanism comprises: A fixing frame (3), the fixing frame (3) being fixedly placed on one side of the housing (1), and a motor (4) being fixedly mounted on a side wall of the fixing frame (3) away from the housing (1); a first sprocket (5), the output end of the motor (4) being fixedly connected to the first sprocket (5), a second sprocket (28) symmetrical to the first sprocket (5) being rotatably mounted on a side wall of one end of the fixing frame (3) close to the housing (1), a chain (7) being sleeved on the first sprocket (5) and the second sprocket (28), and a plurality of support rods (8) being evenly fixedly connected to the side wall of the chain (7); A first support frame (6), the first support frame (6) being fixedly connected to the top wall of the fixed frame (3), the first sprocket (5) and the second sprocket (28) being both located inside the first support frame (6), and a first slide groove (9) being provided on the first support frame (6); An automatic switch (29) is fixedly mounted on one side of the fixing frame (3) close to the housing (1), and the automatic switch (29) comprises: A shell (32), wherein the shell (32) is fixedly mounted on one end of the fixing frame (3) close to the outer shell (1); A rotating block (26), the housing (32) having the rotating block (26) rotatably mounted thereon, one end of the rotating block (26) being fixedly connected to the first electric block (15); a second electric block (16), the second electric block (16) being elastically connected to the bottom wall of the first electric block (15) via a second spring (17), and the first electric block (15) and the second electric block (16) being electrically connected to the motor (4); A plurality of the support rods (8) are each fixedly mounted with an elastic mechanism for triggering an automatic switch; The elastic mechanism comprises: A rotating block (10), the supporting rod (8) being rotatably mounted with the rotating block (10), a third sliding groove (34) being provided on the bottom wall of the rotating block (10), and a first connecting rod (11) being slidably connected to the sliding groove; A second connecting rod (12), wherein one end of the first connecting rod (11) away from the rotating block (10) is rotatably connected to the second connecting rod (12), and one end of the second connecting rod (12) away from the first connecting rod (11) is fixedly connected to the third connecting rod (13) via a rotating shaft (31); A first spring (14), the bottom wall of the third connecting rod (13) being elastically connected to the first spring (14); The automatic feeding device comprises: A material guiding channel (18), wherein a material guiding channel (18) cooperating with the material feeding port (35) is fixedly mounted on the material feeding port (35); An air extractor (19), the air extractor (19) being fixedly mounted on the side wall of the material guiding channel (18), and the air inlet of the air extractor (19) being connected to the material guiding channel (18); Two rotating sleeves (30) are sleeved on the support rod (8), and a baffle (36) is fixedly connected to one end of the rotating block (10); A cylinder (20) is fixedly installed at the opening of the material guiding channel (18), and a heat sealing knife (21) is fixedly connected to the output end of the cylinder (20); A revolving door (22) is rotatably mounted on a side wall of the fixed frame (3) away from the motor (4), and a second sliding groove (23) corresponding to the first sliding groove (9) is provided on the revolving door (22); The side wall of the second slide groove (23) facing the first slide groove (9) is an arc-shaped side wall, and the end of the support rod (8) away from the chain (7) is an arc-shaped end surface.

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