A plastic hot melting machine for producing EVA plastic and its using method

Abstract

The application discloses a plastic hot melting machine for producing EVA plastic and a use method thereof, and relates to the field of plastic hot melting machines. The plastic hot melting machine for producing EVA plastic and the use method thereof comprise an outer shell body, a screening box is arranged in the inner part of the outer shell body, a cleaning mechanism is arranged in the inner part of the screening box, the screening mechanism comprises a screening plate arranged in the inner part of the screening box, an electric pusher is arranged at the top end of the screening box, a cutting blade is arranged below the electric pusher, a heating pipe is arranged above the cutting blade, the heating pipe is used for heating the cutting blade, a push plate is movably sleeved outside the cutting blade, a return spring is arranged at the side of the screening box, and the return spring is used for driving the push plate to move. The plastic hot melting machine for producing EVA plastic and the use method thereof are characterized in that the movable plate is arranged, the position of the mounting plate is fixed by using the clamping blocks, then the movable plate is moved upwards and the abutting block is abutted against the push plate, so that the cleaning plate can be automatically returned to the original position after cleaning.

Description

Technical Field

[0001] This invention relates to the field of plastic hot melt machine technology, specifically to a plastic hot melt machine for producing EVA plastic and its usage method. Background Technology

[0002] EVA is a copolymer of ethylene and vinyl acetate. After initial synthesis, it is cooled into blocks and then undergoes precision processing through hot melt processing. The device used in EVA plastic hot melt processing is called a plastic hot melt machine. Currently, existing EVA plastic hot melt machines have the problem that if the EVA plastic blocks are large, the hot melt time will be increased.

[0003] The reason for this problem is that EVA plastic is made of ethylene and vinyl acetate. After initial processing, EVA plastic solidifies into blocks. Before further fine processing, it needs to be placed in a hot melt machine for hot melting. The hot melt machine is equipped with a heating device. By placing the EVA plastic blocks inside the heating device, the EVA plastic blocks are melted layer by layer under the high temperature of the heating device. However, the EVA plastic blocks are of different sizes. If a larger volume of EVA plastic is placed directly into the hot melt machine, the machine will heat and melt the EVA plastic blocks layer by layer. At this time, the larger EVA plastic blocks will melt more slowly, while the smaller EVA plastic blocks will melt more quickly. This results in uneven melting speed of EVA plastic. Some EVA plastic remains for a long time due to the high temperature inside the hot melt machine, which can easily cause nodules. In addition, the large size of the EVA plastic blocks will also affect the overall hot melting efficiency of the hot melt machine and increase the hot melting processing time.

[0004] In the actual operation of plastic hot melt machines, it is necessary to hot cut large-volume plastic blocks. After the hot cutting process, the residual glue on the outside of the cutter needs to be cleaned. The existing cleaning method is to use a cleaning plate to scrape off the residual glue on the outside of the cutter. In order to prevent the cleaning plate from blocking the cutting process, the cleaning plate needs to move synchronously with the cutting device. Then, when the cutting mechanism rises, the cleaning plate needs to stay in place and scrape off the residual glue on the outside of the blade when the cutting mechanism rises. Moreover, the cleaning plate is driven by an electric drive component. In order to prevent the cleaning plate from blocking the subsequent feeding, electrical equipment is also needed to control the cleaning plate to reset after the blade resets. This method is not only costly, but the CNC mechanism is also difficult to control and is prone to errors during the drive process. Therefore, we propose a plastic hot melt machine for producing EVA plastic and its usage method. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention discloses a plastic hot melt machine for producing EVA plastic and its usage method, thereby solving the problem mentioned in the background art that existing plastic hot melt machines for EVA plastic require increased hot melting time if the EVA plastic is in large block size.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a plastic hot melt machine for producing EVA plastic and its usage method, comprising a housing, an internal screening box, and a cleaning mechanism for cleaning the cutting blades after screening and cutting. The cleaning mechanism includes a screening plate disposed inside the screening box for screening EVA plastic, an electric pusher disposed at the top of the screening box, a cutting blade disposed below the electric pusher for cutting EVA plastic, a heating tube disposed above the cutting blade for heating the cutting blade, a pusher plate movably sleeved on the outside of the cutting blade for cleaning residual EVA plastic on the outside of the cutting blade, and a return spring disposed on the side of the screening box for moving the pusher plate.

[0009] Preferably, the screening box has a screening plate inside, a feeding plate on the side of the screening box, a connecting rod fixedly connected inside the feeding plate, a transmission rod movably sleeved on the outside of the connecting rod, an upper partition fixedly connected inside the outer shell, and the screening box is disposed inside the upper partition.

[0010] Preferably, a push rod is fixedly connected to the outside of the electric actuator, the movable plate is disposed at the bottom end of the push rod, the movable plate is slidably connected to the inside of the screening box, a limit plate is fixedly connected above the movable plate, the limit plate is movably inserted into the inside of the screening box, a top plate is fixedly connected to the top of the limit plate, the top plate is disposed outside the electric actuator, a heat transfer plate is fixedly connected to the lower surface of the movable plate, a heating tube is installed inside the heat transfer plate, the cutting blade is disposed below the heating tube, and the cutting blade is disposed above the screening plate.

[0011] Preferably, a lifting plate is fixedly connected to the lower surface of the push plate, a sliding groove is provided on the side of the screening box, the lifting plate is slidably connected inside the sliding groove, a cleaning plate is fixedly connected to the lower surface of the push plate, the cleaning plate is slidably connected to the outside of the heat transfer plate, a limiting box is fixedly connected to the outside of the screening box, an auxiliary plate is fixedly connected inside the limiting box, a limiting block is fixedly connected to the lower surface of the push plate, the limiting block is movably sleeved on the outer surface of the auxiliary plate, the limiting block is slidably connected inside the limiting box, and the upper surface of the push plate abuts against the lower surface of the moving plate.

[0012] Preferably, an mounting plate is fixedly connected to the upper part of the lifting plate, and a baffle is fixedly connected to the lower surface of the lifting plate. The baffle is used to block the sliding groove. An auxiliary component is fixedly connected to the side of the screening box. The baffle is slidably connected inside the auxiliary component and is movably inserted into the upper partition.

[0013] Preferably, a main rod is fixedly connected to the upper surface of the upper partition, the return spring is movably sleeved on the outside of the main rod, a support plate is fixedly connected to the side of the screening box, the top of the main rod is fixedly connected to the bottom of the support plate, a limit rod is fixedly connected to the lower surface of the support plate, and the mounting plate is movably sleeved on the outside of the limit rod.

[0014] Preferably, a snap-fit ​​block is fixedly connected to the outside of the movable plate, the movable plate is fixedly connected above the upper partition, the outer surface of the snap-fit ​​block abuts against the outer surface of the mounting plate, a functional spring is fixedly connected to the side of the movable plate away from the snap-fit ​​block, a telescopic rod is fixedly connected to the outside of the movable plate, the functional spring is movably sleeved on the outside of the telescopic rod, an outer plate is fixedly connected to the upper surface of the upper partition, the telescopic rod is fixedly connected to the outside of the outer plate, the other end of the functional spring is fixedly connected to the outside of the outer plate, a support block is fixedly connected to the outer surface of the screening box, the support block is fixedly connected to the outside of the outer plate, and the movable plate is movably sleeved on the outside of the support block.

[0015] Preferably, a stop block is fixedly connected to the outside of the movable plate, and the outer surface of the push block abuts against the outer surface of the stop block.

[0016] Preferably, a lower partition is fixedly connected inside the outer shell, a melting tank is installed above the lower partition, the melting tank is located below the screening box, a side heating plate is provided inside the melting tank, a bottom heating plate is provided at the bottom of the melting tank, a drive motor is installed below the melting tank, a rotating disk is installed on the outer surface of the output end of the drive motor, an agitator is fixedly connected to the upper surface of the rotating disk, a glue delivery pump is provided on the side of the melting tank, the glue delivery pump is located above the lower partition, and a control panel is provided on the side of the outer shell.

[0017] Preferably, the first step involves placing EVA plastic inside a screening box and using the screening mechanism inside the screening box to screen the EVA plastic.

[0018] The second step: After the EVA plastic is screened through the screening box, it will fall into the melting box. Use the control device to turn on the bottom heating plate and the side heating plate inside the melting box to heat and melt the EVA plastic.

[0019] The third step involves heating and melting the EVA plastic through the side heating plate and the bottom heating plate. The EVA plastic will then be converted into liquid EVA plastic. Finally, the liquid EVA plastic is delivered to the outside of the outer shell by turning on the liquid delivery pump through the control device.

[0020] This invention discloses a plastic hot melt machine for producing EVA plastic and its usage method, which has the following beneficial effects:

[0021] 1. This plastic hot melt machine for producing EVA plastic and its usage method: The push plate moves downward following the moving plate. When the moving plate rises, the push plate stops in place due to the fixing of the locking block. The heat transfer plate and cutting blade clean the residual EVA plastic solution on the surface. When the push block moves to the outside of the abutment block, the push block moves with the arc surface of the abutment block to the position of abutting the abutment block, thereby releasing the locking block from fixing the mounting plate. Finally, under the action of the return spring tension, the push plate is driven back to the initial position. Under the action of the return spring tension, the mounting plate is pushed upward. By setting a movable plate, the position of the mounting plate is fixed by the locking block. Then the moving plate moves upward and makes the abutment block abut against the push plate, thereby realizing that the cleaning plate automatically returns to its position after cleaning. The overall design is simple, low in cost, and reliable in operation.

[0022] 2. The plastic hot melt machine for producing EVA plastic and its usage method: EVA plastic blocks enter the screening box from the feeding plate. If the EVA plastic blocks are small, they will fall into the melting box through the gaps between the screening plates. If the EVA plastic blocks are large, they will stay above the screening plates. At this time, the electric pusher is activated by the control device to push the moving plate downward. The heat transfer plate provides heat to the cutting blade to cut the EVA plastic blocks. By keeping the larger EVA plastic blocks above the screening plates, the cutting blade and heat transfer plate are used to cut the EVA plastic blocks, thereby reducing the volume of the EVA plastic blocks. This allows the EVA plastic to melt quickly after entering the melting box, and also reduces the hot melt processing time.

[0023] 3. The plastic hot melt machine used for producing EVA plastic and its usage method: After the EVA plastic block falls from the inside of the screening box into the inside of the melting tank, the side heating plate and bottom heating plate inside the melting tank will heat melt the EVA plastic block. At this time, the drive motor will drive the agitator to rotate, and the agitator will agitate the EVA plastic block inside the melting tank, accelerating the heat melting speed of the EVA plastic block and preventing the EVA plastic solution from clumping due to long-term contact with the outside of the auxiliary heating plate, thereby increasing the heat melting efficiency of the EVA plastic block. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the top structure inside the outer shell of the present invention;

[0026] Figure 3 This is a cross-sectional view of the internal structure of the outer shell of the present invention;

[0027] Figure 4 This is a schematic diagram of the internal structure of the screening box of the present invention;

[0028] Figure 5 This is a cross-sectional view of the internal structure of the feed plate of the present invention;

[0029] Figure 6 This is a schematic diagram of the external structure of the movable plate of the present invention;

[0030] Figure 7 This is an exploded view of the external structure of the heat transfer plate of the present invention;

[0031] Figure 8 This is an exploded view of the structure above the upper partition of the present invention;

[0032] Figure 9 This is a schematic diagram of the external structure of the movable plate of the present invention;

[0033] Figure 10 This is an exploded view of the external structure of the support block of the present invention;

[0034] Figure 11 This is an exploded view of the external structure of the push plate of the present invention;

[0035] Figure 12 This is an exploded view of the external structure of the mounting plate of the present invention;

[0036] Figure 13 This is an exploded view of the external structure of the lifting plate of the present invention;

[0037] Figure 14 This is a schematic diagram of the internal structure of the melt box of the present invention;

[0038] Figure 15 This is a schematic diagram of the structure below the lower partition of the present invention;

[0039] Figure 16 This is a schematic diagram of the external structure of the agitator of the present invention.

[0040] In the diagram: 1. Outer casing; 101. Control panel; 2. Screening box; 201. Screening plate; 202. Transmission rod; 203. Electric actuator; 204. Cutting blade; 205. Heat transfer plate; 206. Heating tube; 207. Limiting plate; 208. Top plate; 209. Push rod; 210. Moving plate; 211. Connecting rod; 212. Upper partition; 213. Feeding plate; 3. Pushing plate; 301. Main rod; 302. Moving plate; 303. Limiting rod; 304. Support plate; 305. Mounting plate; 306. Return spring; 30 7. Snap-fit ​​block; 308. Auxiliary plate; 309. Limiting box; 310. Baffle; 311. Auxiliary component; 312. Sliding groove; 313. Lifting plate; 314. Limiting block; 315. Cleaning plate; 316. Pushing block; 317. Abutting block; 318. Supporting block; 319. Outer plate; 320. Telescopic rod; 321. Functional spring; 4. Melting box; 401. Lower partition; 402. Agitator; 403. Glue transfer pump; 404. Side heating plate; 405. Drive motor; 406. Bottom heating plate; 407. Rotating disc. Detailed Implementation

[0041] This invention discloses a plastic hot melt machine for producing EVA plastic and its usage method, such as... Figure 1-16 As shown, in order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings and through embodiments.

[0042] The device includes an outer casing 1, inside which is a screening box 2. Inside the screening box 2 are cutting blades 204. Inside the screening box 2 is a cleaning mechanism for cleaning the cutting blades 204 after screening and cutting. The cleaning mechanism includes an electric pusher 203 located at the top of the screening box 2, a moving plate 210 located below the electric pusher 203 for moving the cutting blades 204, and a pusher plate 3 movably sleeved on the outside of the cutting blades 204 for cleaning the cutting blades. The blade 204 has residual EVA plastic on its exterior. The return spring 306 is located on the side of the screening box 2 and is used to drive the push plate 3 to move. The stop block 317 is located on the exterior of the moving plate 210 and is slidably connected to the interior of the screening box 2. The movable plate 302 is located on the exterior of the screening box 2 and its exterior abuts against the exterior of the stop block 317. The movable plate 302 is used to fix the position of the push plate 3. The functional spring 321 is located on the exterior of the movable plate 302 and is used to drive the movable plate 302 to move.

[0043] The screening box 2 has a screening plate 201 inside and a feeding plate 213 on the side. A connecting rod 211 is fixedly connected inside the feeding plate 213. A transmission rod 202 is movably sleeved on the outside of the connecting rod 211. An upper partition 212 is fixedly connected inside the outer shell 1. The screening box 2 is located inside the upper partition 212. The EVA plastic block will move outside the transmission rod 202. The transmission rod 202 will rotate on the outer surface of the connecting rod 211. The transmission rod 202 will reduce the friction between the EVA plastic block and the inside of the feeding plate 213 when the EVA plastic block moves.

[0044] An electric pusher 203 is externally fixedly connected to a push rod 209. A movable plate 210 is located at the bottom end of the push rod 209 and is slidably connected inside the screening box 2. A limit plate 207 is fixedly connected above the movable plate 210 and is movably inserted into the screening box 2. A top plate 208 is fixedly connected to the top of the limit plate 207 and is located outside the electric pusher 203. The electric pusher 203 is controlled by a pre-set program and can effectively and slowly drive the cutting blade 204 downward to complete the cutting.

[0045] A heat transfer plate 205 is fixedly connected to the lower surface of the movable plate 210. A heating tube 206 is installed inside the heat transfer plate 205. The cutting blade 204 is located below the heating tube 206 and above the screening plate 201. The heating tube 206 inside the heat transfer plate 205 can quickly heat the heat transfer plate 205. The heat transfer plate 205 will also transfer some heat to the cutting blade 204 to increase the cutting effect. As the cutting blade 204 moves downward, it will cut the EVA plastic block above the screening plate 201.

[0046] A lifting plate 313 is fixedly connected to the lower surface of the push plate 3. A sliding groove 312 is provided on the side of the screening box 2. The lifting plate 313 is slidably connected inside the sliding groove 312. A cleaning plate 315 is fixedly connected to the lower surface of the push plate 3. The cleaning plate 315 is slidably connected to the outside of the heat transfer plate 205. A limit box 309 is fixedly connected to the outside of the screening box 2. An auxiliary plate 308 is fixedly connected inside the limit box 309. A limit block 314 is fixedly connected to the lower surface of the push plate 3. The limit block 314 is movably sleeved on the outer surface of the auxiliary plate 308. The sliding connection is inside the limiting box 309. The upper surface of the push plate 3 abuts against the lower surface of the moving plate 210. By setting the push plate 3, the position of the mounting plate 305 is fixed by the snap-fit ​​block 307. Then, when the heat transfer plate 205 moves upward, the residual EVA plastic solution on the surface of the heat transfer plate 205 and the cutting blade 204 is cleaned. Then, the push block 316 abuts against the stop block 317, thereby releasing the snap-fit ​​block 307 from fixing the mounting plate 305. Finally, under the tension of the return spring 306, the push plate 3 is driven back to the initial position.

[0047] A mounting plate 305 is fixedly connected to the top of the lifting plate 313, and a baffle 310 is fixedly connected to the lower surface of the lifting plate 313. The baffle 310 is used to block the sliding groove 312. An auxiliary component 311 is fixedly connected to the side of the screening box 2. The baffle 310 is slidably connected inside the auxiliary component 311. The baffle 310 is movably inserted into the inside of the upper partition 212. The baffle 310 can block the sliding groove 312.

[0048] The upper surface of the upper partition 212 is fixedly connected to the main rod 301. The return spring 306 is movably sleeved on the outside of the main rod 301. The side of the screening box 2 is fixedly connected to the support plate 304. The top of the main rod 301 is fixedly connected to the bottom of the support plate 304. The lower surface of the support plate 304 is fixedly connected to the limit rod 303. The mounting plate 305 is movably sleeved on the outside of the limit rod 303. The push plate 3 moves downward with the moving plate 210. When the moving plate 210 rises, the push plate 3 will stay in place due to the fixing of the locking block 307.

[0049] A snap-fit ​​block 307 is fixedly connected to the outside of the movable plate 302. The movable plate 302 is fixedly connected above the upper partition 212. The outer surface of the snap-fit ​​block 307 abuts against the outer surface of the mounting plate 305. A functional spring 321 is fixedly connected to the side of the movable plate 302 away from the snap-fit ​​block 307. A telescopic rod 320 is fixedly connected to the outside of the movable plate 302. The functional spring 321 is movably sleeved on the outside of the telescopic rod 320. An outer plate 319 is fixedly connected to the upper surface of the upper partition 212. The telescopic rod 320 is fixedly connected to the outside of the outer plate 319. The other end of the functional spring 321 is fixedly connected to the outside of the outer plate 319. A support block 318 is fixedly connected to the outer surface of the screening box 2. The support block 318 is fixedly connected to the outside of the outer plate 319. The movable plate 302 is movably sleeved on the outside of the support block 318.

[0050] The movable plate 302 is externally fixedly connected to a stop block 317, and the outer surface of the push block 316 abuts against the outer surface of the stop block 317.

[0051] A lower partition 401 is fixedly connected inside the outer casing 1. A melting tank 4 is installed above the lower partition 401 and is located below the screening box 2. A side heating plate 404 is installed inside the melting tank 4, and a bottom heating plate 406 is installed at the bottom of the melting tank 4. A drive motor 405 is installed below the melting tank 4. A rotating disk 407 is installed on the outer surface of the output end of the drive motor 405. An agitator 402 is fixedly connected to the upper surface of the rotating disk 407. A glue transfer pump 403 is installed on the side of the melting tank 4 and is located above the lower partition 401. A control panel 101 is installed on the side of the outer casing 1.

[0052] Step 1: By placing EVA plastic inside screening box 2, the screening mechanism inside screening box 2 is used to screen the EVA plastic.

[0053] Step 2: After the EVA plastic is screened through the inside of the screening box 2, the EVA plastic will fall into the inside of the melting box 4. Use the control device to open the bottom heating plate 406 and the side heating plate 404 inside the melting box 4, and heat and melt the EVA plastic through the side heating plate 404 and the bottom heating plate 406.

[0054] The third step involves heating and melting the EVA plastic through the side heating plate 404 and the bottom heating plate 406. The EVA plastic will then be converted into liquid EVA plastic. Finally, the liquid EVA plastic is delivered to the outside of the outer shell 1 by turning on the liquid delivery pump 403 through the control device.

[0055] By placing EVA plastic inside the feed plate 213, the EVA plastic block will enter the screening box 2 from inside the feed plate 213. As it passes through the feed plate 213, the EVA plastic block will move outside the transmission rod 202, which will rotate on the outer surface of the connecting rod 211. The transmission rod 202 will reduce the friction between the EVA plastic block and the inside of the feed plate 213 during movement. After entering the screening box 2, if the EVA plastic block is small, it will fall into the melting tank 4 through the gaps between the screening plates 201. If the EVA plastic block is large, it will remain above the screening plates 201. At this time, the electric pusher 203 is activated by the control device. The electric pusher 203 will drive the push rod 209, which will push the moving plate 210 downwards. The moving plate 210 will then drive the cutting blade 204 and the heat transfer plate 205 downwards. At this time, the limiting plate 2... 07 will slide inside the screening box 2. The heat transfer plate 205 is equipped with a heating tube 206, which can quickly heat the heat transfer plate 205. The heat transfer plate 205 will also transfer some heat to the cutting blade 204. As the cutting blade 204 moves downward, it will cut the EVA plastic block above the screening plate 201. The cutting blade 204 is located above the middle position between every two sets of screening plates 201. After the cutting blade 204 cuts the EVA plastic block, the volume of the EVA plastic block will become smaller. Then it will enter the melting box 4 for hot melting processing. By setting the screening box 2, the larger EVA plastic blocks will stay above the screening plate 201. Then the cutting blade 204 and the heat transfer plate 205 will cut the EVA plastic blocks, thereby reducing the volume of the EVA plastic blocks. This allows the EVA plastic to melt quickly after entering the melting box 4, increasing the hot melting processing efficiency of EVA plastic and reducing the hot melting processing time.

[0056] The moving plate 210 will drive the cutting blade 204 and the heat transfer plate 205 to move downwards. Simultaneously, the moving plate 210 will drive the pushing plate 3 to move downwards, causing the mounting plate 305 to press against the return spring 306. At this point, the pushing block 316 will move away from the outside of the abutment block 317. The functional spring 321 will then lose its compressive force and generate tension, pushing the movable plate 302 to move under the tension. The movable plate 302 will then slide outside the support block 318, and the locking block 307 will move to a position below the mounting plate 305 under the push of the movable plate 302. When the mounting plate 305 abuts against the outer surface of the locking block 307, the mounting plate 305 will move along the arc of the locking block 307. The shaped surface pushes the locking block 307, at which time the locking block 307 will move to the position of the outer plate 319. At the same time, the locking block 307 drives the movable plate 302 to squeeze the functional spring 321 until the mounting plate 305 moves to the position below the locking block 307 along with the arc surface of the locking block 307. At this time, the functional spring 321 will lose the squeezing force and generate tension. Under the action of the tension of the functional spring 321, the locking block 307 will be pushed above the mounting plate 305. When the movable plate 210 rises, the push plate 3 will stay in place. At this time, the heat transfer plate 205 will slide inside the push plate 3. When the heat transfer plate 205 rises, the limiting block 314 will scrape off the residual EVA plastic solution on the heat transfer plate 205 and the cutting blade 204.

[0057] When the movable plate 210 moves upward, the pushing block 316 slides inside the screening box 2. Then, when the pushing block 316 moves to the outside of the abutment block 317, it pushes the abutment block 317 along its curved surface. The abutment block 317 then drives the movable plate 302, which in turn drives the locking block 307 away from the outside of the mounting plate 305. At this point, the return spring 306 loses its compressive force and generates tension. Under the tension of the return spring 306, the mounting plate 305 is pushed upward until the mounting plate... Plate 305 drives push plate 3 back to the position below moving plate 210. By setting push plate 3, the position of mounting plate 305 is fixed by snap-fit ​​block 307. Then, when heat transfer plate 205 moves upward, residual EVA plastic solution is cleaned from the surface of heat transfer plate 205 and cutting blade 204. Then, push block 316 abuts against block 317 to release snap-fit ​​block 307 from fixing mounting plate 305. Finally, push plate 3 is driven back to the initial position by the tension of return spring 306.

[0058] After the EVA plastic block falls from the inside of the screening box 2 into the inside of the melting box 4, the side heating plate 404 and the bottom heating plate 406 inside the melting box 4 will heat melt the EVA plastic block. At this time, the drive motor 405 will drive the agitator 402 to rotate. The agitator 402 will agitate the EVA plastic block inside the melting box 4, accelerate the heat melting speed of the EVA plastic block, and prevent the EVA plastic solution from clumping due to long-term contact with the outside of the auxiliary heating plate, thereby increasing the heat melting efficiency of the EVA plastic block.

[0059] After the EVA plastic block is hot-melted, the adhesive delivery pump 403 is turned on using the control device. The adhesive delivery pump 403 delivers the EVA plastic solution out of the interior of the outer shell 1, thus completing the EVA plastic hot-melt process.

[0060] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A plastic hot melt machine for producing EVA plastic, comprising a housing (1), wherein a screening box (2) is disposed inside the housing (1), and a cutting blade (204) is disposed inside the screening box (2), characterized in that, The screening box (2) is equipped with a cleaning mechanism inside. The cleaning mechanism is used to clean the cutting blades (204) after screening and cutting. The cleaning mechanism includes: an electric pusher (203) located at the top of the screening box (2); a moving plate (210) located below the electric pusher (203) and used to drive the cutting blades (204) to move; a push plate (3) movably sleeved on the outside of the cutting blades (204) and used to clean the residual EVA plastic on the outside of the cutting blades (204); a return spring (306) located on the side of the screening box (2) and used to drive the push plate (3) to move; a push block (316) located outside the moving plate (210) and slidably connected inside the screening box (2); and a movable plate (302) located outside the screening box (2) and used to fix the position of the push plate (3). A functional spring (321) is disposed outside the movable plate (302), and the functional spring (321) is used to drive the movable plate (302) to move; The movable plate (302) is fixedly connected to the outside of a stop block (317), and the outer surface of the push block (316) abuts against the outer surface of the stop block (317); The screening box (2) is provided with a screening plate (201) inside, and a feeding plate (213) is provided on the side of the screening box (2). A connecting rod (211) is fixedly connected inside the feeding plate (213), and a transmission rod (202) is movably sleeved on the outside of the connecting rod (211). An upper partition plate (212) is fixedly connected inside the outer shell (1), and the screening box (2) is located inside the upper partition plate (212). A lifting plate (313) is fixedly connected to the lower surface of the push plate (3). A sliding groove (312) is provided on the side of the screening box (2). The lifting plate (313) is slidably connected inside the sliding groove (312). An mounting plate (305) is fixedly connected above the lifting plate (313). A baffle (310) is fixedly connected to the lower surface of the lifting plate (313). The baffle (310) is used to block the sliding groove (312). An auxiliary component (311) is fixedly connected to the side of the screening box (2). The baffle (310) is slidably connected inside the auxiliary component (311). The baffle (310) is movably inserted into the upper partition (212). The upper surface of the upper partition (212) is fixedly connected to the main rod (301), the return spring (306) is movably sleeved on the outside of the main rod (301), the side of the screening box (2) is fixedly connected to the support plate (304), the top of the main rod (301) is fixedly connected to the bottom of the support plate (304), the lower surface of the support plate (304) is fixedly connected to the limit rod (303), and the mounting plate (305) is movably sleeved on the outside of the limit rod (303); A snap-fit ​​block (307) is fixedly connected to the outside of the movable plate (302). The movable plate (302) is connected above the upper partition plate (212). The outer surface of the snap-fit ​​block (307) abuts against the outer surface of the mounting plate (305). A functional spring (321) is fixedly connected to the side of the movable plate (302) away from the snap-fit ​​block (307). A telescopic rod (320) is fixedly connected to the outside of the movable plate (302). The functional spring (321) is movably sleeved on the telescopic rod (320). Outside of the upper partition (212), an outer plate (319) is fixedly connected to the upper surface of the upper partition (212), the telescopic rod (320) is fixedly connected to the outside of the outer plate (319), the other end of the functional spring (321) is fixedly connected to the outside of the outer plate (319), a support block (318) is fixedly connected to the outer surface of the screening box (2), the support block (318) is fixedly connected to the outside of the outer plate (319), and the movable plate (302) is movably sleeved on the outside of the support block (318).

2. A plastic hot melt machine for producing EVA plastic according to claim 1, characterized in that: The electric actuator (203) is externally fixedly connected to a push rod (209). The moving plate (210) is located at the bottom end of the push rod (209). The moving plate (210) is slidably connected inside the screening box (2). A limiting plate (207) is fixedly connected above the moving plate (210). The limiting plate (207) is movably inserted into the screening box (2). A top plate (208) is fixedly connected to the top of the limiting plate (207). The top plate (208) is located outside the electric actuator (203). A heat transfer plate (205) is fixedly connected to the lower surface of the moving plate (210). A heating tube (206) is installed inside the heat transfer plate (205). The cutting blade (204) is located below the heating tube (206) and above the screening plate (201).

3. A plastic hot melt machine for producing EVA plastic according to claim 2, characterized in that: A cleaning plate (315) is fixedly connected to the lower surface of the push plate (3). The cleaning plate (315) is slidably connected to the outside of the heat transfer plate (205). A limiting box (309) is fixedly connected to the outside of the screening box (2). An auxiliary plate (308) is fixedly connected to the inside of the limiting box (309). A limiting block (314) is fixedly connected to the lower surface of the push plate (3). The limiting block (314) is movably sleeved on the outer surface of the auxiliary plate (308). The limiting block (314) is slidably connected to the inside of the limiting box (309). The upper surface of the push plate (3) abuts against the lower surface of the moving plate (210).

4. A plastic hot melt machine for producing EVA plastic according to claim 1, characterized in that: The outer shell (1) is fixedly connected to a lower partition (401). A melting box (4) is installed above the lower partition (401). The melting box (4) is located below the screening box (2). A side heating plate (404) is installed inside the melting box (4). A bottom heating plate (406) is installed at the bottom of the melting box (4). A drive motor (405) is installed below the melting box (4). A rotating disk (407) is installed on the outer surface of the output end of the drive motor (405). An agitator (402) is fixedly connected to the upper surface of the rotating disk (407). A glue transfer pump (403) is installed on the side of the melting box (4). The glue transfer pump (403) is located above the lower partition (401). A control panel (101) is installed on the side of the outer shell (1).

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