A kind of UV curing polyolefin hot melt adhesive preparation equipment and preparation method

Abstract

The invention relates to the technical field of hot melt adhesive preparation, in particular to a UV curing polyolefin hot melt adhesive preparation device and a preparation method; the device comprises an electric telescopic rod, a No. 1 rod, a blade, a pressure rod, a support rod and a slider; by arranging the electric telescopic rod, the No. 1 rod, the blade, the pressure rod, the support rod and the slider; when the blade cuts the hot melt adhesive stick, the pressure rod between the blades first contacts the hot melt adhesive stick, the pressure rod squeezes the hot melt adhesive stick, and the blade cuts the hot melt adhesive stick; when the blade cuts, a controller controls a motor to rotate 90 degrees, the upper end face of the No. 2 block rotates to the rear side of a pelletizer, and the front end face of the No. 2 block rotates to the upper end of the No. 2 block, so that the hot melt adhesive particles cut on the No. 2 block are collected behind the pelletizer, and then the hot melt adhesive stick continues to enter the No. 2 groove on the No. 2 block for cutting.

Description

Technical Field

[0001] The invention relates to the technical field of hot melt adhesive preparation, in particular to a device and a method for preparing UV curing polyolefin hot melt adhesive. Background Art

[0002] Hot melt adhesive particles are solid adhesives made of ethylene-vinyl acetate copolymer as the main material, with the addition of tackifiers and other ingredients. They can be used for wood, plastic, fiber, fabric, metal, furniture, lampshades, leather, handicrafts, toys, electronics, electrical components, paper products, ceramics and pearl cotton packaging and other solids that stick to each other. They can be widely used in factories and homes. Hot melt adhesive particles need to be pelletized during production, which requires the use of a pelletizer. The current pelletizers are rough in processing and have no speed regulation mechanism, so they cannot achieve the effect of finely adjusting the size of the hot melt adhesive particles.

[0003] There is also a patent in the prior art regarding a technical solution for a UV-curing polyolefin hot melt adhesive preparation device and a preparation method. For example, a Chinese patent with application number CN2018213257192 discloses a hot melt glue stick cutting device, which includes a base plate, and a conveyor belt is provided on the upper surface of the base plate. The device is characterized in that a support plate is provided on the upper surface of the base plate, and a cutting mechanism capable of cutting the hot melt glue stick is provided at one end of the conveyor belt located on one side surface of the support plate, and a clamping drive mechanism capable of clamping and fixing the hot melt glue stick in the cutting mechanism and driving the cutting mechanism to work is provided between the conveyor belt and the cutting mechanism. The hot melt glue stick is manually placed longitudinally on the conveyor belt, and the hot melt glue stick on one end of the conveyor belt is clamped and fixed by the clamping drive mechanism while driving the cutting mechanism, so that the cutting mechanism cuts the clamped hot melt glue stick.

[0004] The above-mentioned prior art provides a fixed plate, a connecting rod, a first guide groove, a second guide groove, a first connecting plate, a second connecting plate and a clamping plate; so that the application greatly improves efficiency and reduces time, and meets people's use needs; but the clamping plate support provided in the above-mentioned prior art restricts the hot-melt glue stick from moving up and down, and the above-mentioned prior art supports one end of the hot-melt glue stick. When a softer hot-melt glue is used for pelletizing, the above-mentioned prior art will cause the hot-melt glue stick to be unevenly stressed, resulting in uneven cutting of the hot-melt glue stick, and the above-mentioned prior art manually controls the delivery of the hot-melt glue stick, and cannot control the size of the hot-melt glue stick, thereby affecting the use efficiency of the pelletizer.

[0005] In view of this, the present invention proposes a UV curing polyolefin hot melt adhesive preparation device and a preparation method to solve the above problems. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art and solve the problem that the pelletizer in the prior art causes uneven force on the hot melt glue stick, resulting in uneven cutting of the hot melt glue stick, and the above-mentioned prior art manually controls the conveying of the hot melt glue stick and cannot control the size of the hot melt glue stick, thereby affecting the efficiency of the pelletizer; the present invention proposes a UV-curing polyolefin hot melt adhesive preparation device and a preparation method.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a UV curing polyolefin hot melt adhesive preparation device, including a shell, a No. 1 block, a motor and a No. 2 block; the right side surface of the shell is evenly provided with a No. 1 hole, the No. 1 block is fixedly connected to the lower side of the right end surface of the shell, the upper end surface of the No. 1 block is evenly provided with a No. 1 groove, the No. 1 groove is connected to the No. 1 hole, the No. 1 groove runs through the left and right end surfaces of the No. 1 block, the motor is fixedly connected to one end of the No. 1 block close to the shell, the output shaft of the motor extends into the shell, one end of the No. 2 block is fixedly connected to one end of the output shaft of the motor, the end surface of the No. 2 block away from the motor is rotatably connected to the inner wall of the shell through a rotating shaft, the No. 2 block is a cube, and the No. 2 A group of annular grooves are evenly provided on the surface of the No. 1 block, and the distance between each two annular grooves is the same. The upper, lower, front and rear end surfaces of the No. 2 block are evenly provided with No. 2 grooves, and the No. 2 grooves are the same as the No. 1 grooves; an electric telescopic rod is fixedly connected to the top of the shell, and the lower end of the guide rod of the electric telescopic rod is fixedly connected to the No. 1 rod, and the No. 1 rod is parallel to the top of the shell, and a group of blades are evenly arranged under the No. 1 rod, and each blade is arranged corresponding to the annular groove; a pressure rod is arranged between adjacent blades, and the upper end surface of the pressure rod is fixedly connected to the lower end surface of the No. 1 rod through a spring, and support rods are hinged on both sides of the pressure rod, and the end of the support rod away from the pressure rod is hinged to the slider, and the slider is slidably connected to the blade;

[0008] During use, the hot melt glue stick is extruded through the extruder, and then the hot melt glue stick is cooled and shaped. When the hot melt glue stick is cooled, the hot melt glue stick is pelletized by using a pelletizer, and the hot melt glue stick is transferred to block No. 1, and a No. 1 groove is opened on block No. 1. When the hot melt glue stick enters the No. 1 groove, the No. 1 groove limits the hot melt glue stick, thereby ensuring the stability of the hot melt glue stick during cutting. Then, the hot melt glue stick is passed through the No. 1 hole on the shell and enters the upper end surface of block No. 2, and the hot melt glue stick enters the No. 2 groove on the upper end surface of block No. 2. When the hot melt glue stick completely enters the No. 2 groove, the controller controls the electric telescopic rod to extend downward, and the guide rod of the electric telescopic rod pushes the No. 1 rod to move downward, and the blade moves downward with the No. 1 rod, and the blade cuts the hot melt glue stick. When the blade cuts the hot melt glue stick, the pressure rod between the blades first contacts The hot melt glue stick and the pressure rod squeeze the hot melt glue stick to keep the hot melt glue stick stable. After the pressure rod squeezes the hot melt glue stick, the blade continues to move downward, and the slider slides on the side of the blade to clean the impurities on the blade. When the blade is cutting, the electric telescopic rod moves upward, and the blade moves upward. The pressure rod is acted upon by the spring, and the slider slides downward on the side of the blade. The pressure rod pushes the hot melt glue stick between the blades to prevent the hot melt glue stick from being stuck between the blades, thereby improving the use efficiency of the pelletizer. When the blade is cutting, the controller controls the motor to rotate, and the upper end face of the No. 2 block rotates to the rear side of the pelletizer, and the front end face of the No. 2 block rotates to the upper end of the No. 2 block, so that the hot melt glue particles cut on the No. 2 block are collected behind the pelletizer, and then the hot melt glue stick continues to enter the No. 2 groove on the No. 2 block for cutting.

[0009] Preferably, a rectangular groove is formed at one end of the slider close to the blade, a roller is rotatably connected in the rectangular groove via a rotating shaft, and the roller is in contact with the blade;

[0010] When in use, a rectangular groove is set at one end of the slider close to the blade, and a connecting roller is rotated in the rectangular groove. When the pelletizer is working, the guide rod of the electric telescopic rod moves downward, and the pressure rod first contacts the moving hot melt glue stick. The pressure rod limits the hot melt glue stick so that the hot melt glue stick cannot move when cutting. Then the blade continues to cut the hot melt glue stick downward, and when the lower end face of the pressure rod moves below the blade, the roller on the slider contacts the blade, and then the roller rolls on the side of the blade, thereby reducing the friction between the slider and the blade, thereby improving the cutting performance of the blade.

[0011] Preferably, the lower end surfaces of the pressure rod and the blade are both provided with grooves, and the positions of the grooves correspond to the positions of the No. 2 grooves;

[0012] When in use, grooves are provided under the pressure rod and the blade, and the positions of the grooves are made to correspond to the positions of the No. 2 grooves. When the electric telescopic rod moves downward, the No. 1 rod moves downward, and the lower end of the pressure rod first contacts the hot-melt glue stick. By providing a groove under the pressure rod, when the pressure rod contacts the hot-melt glue stick, the hot-melt glue stick enters the groove, thereby increasing the contact area between the pressure rod and the hot-melt glue stick, thereby enhancing the limiting effect of the pressure rod on the hot-melt glue stick. After the pressure rod has finished limiting the hot-melt glue stick, the blade continues to move downward, and when the blade cuts the hot-melt glue stick, the hot-melt glue stick enters the groove, and the contact area between the blade and the hot-melt glue stick increases, thereby enabling the blade to limit the hot-melt glue stick while cutting the hot-melt glue stick.

[0013] Preferably, the shapes of the No. 1 groove, the No. 2 groove and the concave groove are all semicircular, so that the shapes of the No. 1 groove, the No. 2 groove and the concave groove fit the shape of the hot melt adhesive stick;

[0014] When in use, by making the shapes of slot No. 1, slot No. 2 and the groove all semicircular, and making slot No. 1, slot No. 2 and the groove all fit the shape of the hot-melt glue stick, when the hot-melt glue stick is above slot No. 1 and slot No. 2, slot No. 1 and slot No. 2 fit tightly with the hot-melt glue stick, so that the hot-melt glue stick can remain stable at all times when the hot-melt glue is cut and transported, thereby making the pelletizer more efficient when the hot-melt glue is pelletized, and by making the groove semicircular, when the blade and the pressure rod squeeze and cut the hot-melt glue stick, the hot-melt glue stick is more stable above block No. 2, thereby improving the pelletizing efficiency of the hot-melt glue stick when pelletizing to a certain extent.

[0015] Preferably, the upper end surface of the blade is slidably connected to the lower end surface of the first rod, and the width between the blades is adjusted by bolts on both sides of the blade;

[0016] When in use, the upper end surface of the blade is slidably connected with the lower end surface of the No. 1 rod. When the blade slides on the No. 1 rod, the support rod is hinged to the side surface of the pressure rod and the side surface of the slider respectively. By twisting the bolts on both sides of the blade, the width of the blade is adjusted after the bolts are loosened. When the blade is adjusted to a suitable position, the bolts are twisted in the opposite direction to clamp the blade and the No. 1 rod, so that the blade is not easy to slide when cutting; when the blade slides on the No. 1 rod, the support rod rotates on the pressure rod and the slider to keep the pressure rod located in the middle position of two adjacent blades, so that after the blade slides, the pressure rod keeps working normally; the blade slides, and after the blade slides, the blade still corresponds to the annular groove, so that when the pelletizer is pelletizing, the distance between the blades is suitable for pelletizing hot-melt glue sticks of different sizes, thereby improving the use efficiency of the pelletizer;

[0017] Preferably, a rubber layer is fixedly connected to the lower end of the pressure rod, and the rubber layer is used to avoid damaging the surface of the hot melt glue stick;

[0018] When in use, by fixing the rubber layer on the lower end face of the pressure rod, when the electric telescopic rod moves downward, the electric telescopic rod pushes the No. 1 rod to move downward, the pressure rod contacts the hot melt glue stick, the pressure rod squeezes the hot melt glue stick, and then the blade cuts the hot melt glue stick into pellets, the No. 1 rod continues to move downward, the spring squeezes the pressure rod, and the pressure rod continues to limit the hot melt glue stick, and by fixing the rubber layer on the lower end face of the No. 1 rod, when the pressure rod squeezes the hot melt glue stick, the rubber layer material is relatively soft, thereby avoiding the pressure rod surface from damaging the surface of the hot melt glue stick, thereby improving the use efficiency of the pelletizer.

[0019] A method for preparing a UV-curable polyolefin hot melt adhesive, the method is applicable to the above-mentioned UV-curable polyolefin hot melt adhesive preparation device, and the method comprises the following steps:

[0020] S1: The hot melt adhesive is put into a hot melt machine for hot melting, and the hot melt time of the hot melt adhesive in the hot melt machine is 40-55 minutes. After the hot melt adhesive raw material is hot melted, the hot melt adhesive raw material is put into a mixer for stirring for 30-40 minutes. After the stirring in the mixer is completed, the stirred hot melt adhesive raw material is put into an extruder for extrusion into a rod;

[0021] S2: After the hot melt adhesive raw material is extruded in the extruder, the extruded hot melt adhesive stick is sent to the cooling pool for low-temperature cooling. The cooling time is 30 minutes. After the hot melt adhesive stick is cooled, it is sent to the conveyor belt. The hot melt adhesive stick is sent to the pelletizer. Then the hot melt adhesive stick enters the top of block No. 1, and then enters the top of block No. 2 through hole No. 1;

[0022] S3: The controller controls the electric telescopic rod to extend downward, the No. 1 rod moves downward, the blade moves downward with the No. 1 rod, the blade cuts the hot melt glue stick, and the pressure rod squeezes the hot melt glue stick to keep the hot melt glue stick stable. When the blade finishes cutting, the electric telescopic rod moves upward. When the blade finishes cutting, the controller controls the motor to rotate 90 degrees, the upper end face of the No. 2 block rotates to the rear side of the pelletizer, and the front end face of the No. 2 block rotates to the upper end of the No. 2 block, so that the hot melt glue particles cut on the No. 2 block are collected behind the pelletizer to obtain finished hot melt glue particles.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. The UV-curing polyolefin hot melt adhesive preparation device and preparation method described in the present invention are provided by arranging an electric telescopic rod, a No. 1 rod, a blade, a pressure rod, a support rod and a slider; when the blade cuts the hot melt adhesive stick, the pressure rod between the blades first contacts the hot melt adhesive stick, the pressure rod squeezes the hot melt adhesive stick, and the blade cuts the hot melt adhesive stick. When the blade cuts, the controller controls the motor to rotate 90 degrees, the upper end face of the No. 2 block rotates to the rear side of the pelletizer, and the front end face of the No. 2 block rotates to the upper end of the No. 2 block, so that the hot melt adhesive particles cut on the No. 2 block are collected behind the pelletizer, and then the hot melt adhesive stick continues to enter the No. 2 groove on the No. 2 block for cutting.

[0025] 2. The UV-curing polyolefin hot-melt adhesive preparation device and preparation method described in the present invention are configured by setting a rectangular groove and a roller; when the pelletizer is working, the guide rod of the electric telescopic rod moves downward, and the pressure rod first contacts the moving hot-melt adhesive stick, and the pressure rod limits the hot-melt adhesive stick so that the hot-melt adhesive stick cannot move when cutting, and then the blade continues to cut the hot-melt adhesive stick downward, and when the lower end face of the pressure rod moves below the blade, the roller on the slider contacts the blade, and then the roller rolls on the side of the blade, thereby reducing the friction between the slider and the blade, thereby improving the cutting performance of the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] Figure 1 It is a process flow chart of the present invention;

[0028] Figure 2 is a stereogram of the present invention;

[0029] Figure 3 yes Figure 2 A front view of

[0030] Figure 4 yes Figure 2 Structural view of block No. 2;

[0031] Figure 5 yes Figure 2 Structural view of the intermediate pressure rod;

[0032] Figure 6 yes Figure 2 Bottom view of block No. 2;

[0033] Figure 7 yes Figure 3 A partial enlarged view of the middle part;

[0034] In the figure: housing 1, block No. 11, block No. 2 12, hole No. 1 13, groove No. 1 14, annular groove 15, groove No. 2 16, electric telescopic rod 17, rod No. 1 171, blade 172, pressure rod 173, support rod 174, slider 18, rectangular groove 181, roller 182, groove 19. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0036] like Figures 1 to 7 As shown, a UV curing polyolefin hot melt adhesive preparation device includes a shell 1, a No. 1 block 11, a motor and a No. 2 block 12; the right side surface of the shell 1 is evenly provided with a No. 1 hole 13, the No. 1 block 11 is fixedly connected to the lower side of the right end surface of the shell 1, the upper end surface of the No. 1 block 11 is evenly provided with a No. 1 groove 14, the No. 1 groove 14 is connected to the No. 1 hole 13, the No. 1 groove 14 runs through the left and right end surfaces of the No. 1 block 11, the motor is fixedly connected to one end of the No. 1 block 11 close to the shell 1, the output shaft of the motor extends into the shell 1, one end of the No. 2 block 12 is fixedly connected to one end of the output shaft of the motor, and the end surface of the No. 2 block 12 away from the motor is rotatably connected to the inner wall of the shell 1 through a rotating shaft, the No. 2 block 12 is a cube, and a group of annular grooves 15 are evenly opened on the surface of the No. 2 block 12, and each two of the annular grooves The distances between the grooves 15 are the same, and the upper, lower, front and rear end surfaces of the No. 2 block 12 are evenly provided with No. 2 grooves 16, and the No. 2 grooves 16 are the same as the No. 1 grooves 14; an electric telescopic rod 17 is fixedly connected to the top of the shell 1, and the lower end of the guide rod of the electric telescopic rod 17 is fixedly connected to the No. 1 rod 171, and the No. 1 rod 171 is parallel to the top of the shell 1, and a group of blades 172 are evenly arranged below the No. 1 rod 171, and each of the blades 172 is arranged corresponding to the annular groove 15; a pressure rod 173 is arranged between adjacent blades 172, and the upper end surface of the pressure rod 173 is fixedly connected to the lower end surface of the No. 1 rod 171 through a spring, and support rods 174 are hinged on both sides of the pressure rod 173, and the end of the support rod 174 away from the pressure rod 173 is hinged to the slider 18, and the slider 18 is slidably connected to the blade 172;

[0037] When in use, the hot melt glue stick is extruded through the extruder, and then the hot melt glue stick is cooled and shaped. After the hot melt glue stick is cooled, the hot melt glue stick is pelletized by using a pelletizer, and the hot melt glue stick is transferred to the No. 1 block 11, and a No. 1 groove 14 is opened on the No. 1 block 11. When the hot melt glue stick enters the No. 1 groove 14, the No. 1 groove 14 limits the hot melt glue stick, thereby ensuring the stability of the hot melt glue stick during cutting, and then the hot melt glue stick is passed through the No. 1 hole 13 on the shell 1 to enter the No. 2 The hot melt glue stick enters the No. 2 groove 16 on the upper end surface of the No. 2 block 12. When the hot melt glue stick completely enters the No. 2 groove 16, the controller controls the electric telescopic rod 17 to extend downward, and the guide rod of the electric telescopic rod 17 pushes the No. 1 rod 171 to move downward, and the blade 172 moves downward with the No. 1 rod 171. The blade 172 cuts the hot melt glue stick. When the blade 172 cuts the hot melt glue stick, the pressure rod 173 between the blades 172 first contacts the hot melt glue stick, and the pressure rod 173 squeezes the hot melt glue stick to keep the hot melt glue stick stable. After the pressure rod 173 squeezes the hot melt glue stick, the blade 172 continues to move downward, and the slider 18 slides on the side of the blade 172. The slider 18 cleans the impurities on the blade 172. When the blade 172 finishes cutting, the electric telescopic rod 17 moves upward, the blade 172 moves upward, the pressure rod 173 is acted upon by the spring, and the slider 18 slides downward on the side of the blade 172. The pressure rod 173 squeezes the blade The hot melt glue stick between the blades 172 is pushed to prevent the hot melt glue stick from being stuck between the blades 172, thereby improving the efficiency of the pelletizer. When the blade 172 completes cutting, the controller controls the motor to rotate 90 degrees, and the upper end face of the No. 2 block 12 rotates to the rear side of the pelletizer, and the front end face of the No. 2 block 12 rotates to the upper end of the No. 2 block 12, so that the hot melt glue particles cut on the No. 2 block 12 are collected behind the pelletizer, and then the hot melt glue stick continues to enter the No. 2 groove 16 on the No. 2 block 12 for cutting.

[0038] As a specific embodiment of the present invention, a rectangular groove 181 is formed at one end of the slider 18 close to the blade 172, and a roller 182 is rotatably connected to the rectangular groove 181 through a rotating shaft, and the roller 182 is in contact with the blade 172;

[0039] When in use, a rectangular groove 181 is set at one end of the slider 18 close to the blade 172, and the connecting roller 182 is rotated in the rectangular groove 181. When the pelletizer is working, the guide rod of the electric telescopic rod 17 moves downward, and the pressure rod 173 first contacts the moving hot melt glue stick. The pressure rod 173 limits the hot melt glue stick so that the hot melt glue stick cannot move when cutting. Then the blade 172 continues to cut the hot melt glue stick downward. When the lower end surface of the pressure rod 173 moves below the blade 172, the roller 182 on the slider 18 contacts the blade 172, and then the roller 182 rolls on the side of the blade 172, thereby reducing the friction between the slider 18 and the blade 172, thereby improving the cutting performance of the blade 172.

[0040] As a specific embodiment of the present invention, the lower end surfaces of the pressure rod 173 and the blade 172 are both provided with a groove 19, and the position of the groove 19 corresponds to the position of the second groove 16;

[0041] When in use, by providing grooves 19 under the pressure rod 173 and the blade 172, and making the position of the groove 19 correspond to the position of the No. 2 groove 16, when the electric telescopic rod 17 moves downward, the No. 1 rod 171 moves downward, and the lower end of the pressure rod 173 first contacts the hot-melt glue stick. By providing the groove 19 under the pressure rod 173, when the pressure rod 173 contacts the hot-melt glue stick, the hot-melt glue stick enters the groove 19, so that the contact area between the pressure rod 173 and the hot-melt glue stick is increased, thereby enhancing the limiting effect of the pressure rod 173 on the hot-melt glue stick. After the pressure rod 173 has finished limiting the hot-melt glue stick, the blade 172 continues to move downward. When the blade 172 cuts the hot-melt glue stick, the hot-melt glue stick enters the groove 19, and the contact area between the blade 172 and the hot-melt glue stick is increased, so that the blade 172 can limit the hot-melt glue stick while cutting the hot-melt glue stick.

[0042] As a specific embodiment of the present invention, the shapes of the first groove 14, the second groove 16 and the groove 19 are all semicircular, so that the shapes of the first groove 14, the second groove 16 and the groove 19 fit the shape of the hot melt adhesive stick;

[0043] When in use, by making the shapes of groove No. 14, groove No. 2, 16 and groove 19 all semicircular, and making groove No. 14, groove No. 2, 16 and groove 19 all fit the shape of the hot melt glue stick, when the hot melt glue stick is above groove No. 14 and groove No. 2, 16, groove No. 14 and groove No. 2, 16 fit tightly with the hot melt glue stick, so that the hot melt glue stick can remain stable at all times when the hot melt glue is cut and transported, so that the pelletizer can be used more efficiently when the hot melt glue is pelletized, and by making groove 19 semicircular, when the blade 172 and the pressure rod 173 squeeze and cut the hot melt glue stick, the hot melt glue stick is more stable above block No. 2 12, thereby improving the pelletizing efficiency of the hot melt glue stick when pelletizing to a certain extent.

[0044] As a specific embodiment of the present invention, the upper end surface of the blade 172 is slidably connected to the lower end surface of the No. 1 rod 171, and the width between the blades 172 is adjusted by bolts on both sides of the blade 172;

[0045] When in use, the upper end surface of the blade 172 is slidably connected to the lower end surface of the No. 1 rod 171. When the blade 172 slides on the No. 1 rod 171, since the support rod 174 is hinged to the side of the pressure rod 173 and the side of the slider 18 respectively, the width of the blade 172 can be adjusted by twisting the bolts on both sides of the blade 172. When the blade 172 is adjusted to a suitable position, the bolts are twisted in the opposite direction to clamp the blade 172 and the No. 1 rod 171, so that the blade 172 is not easy to slide when the blade 172 is cutting. When the blade 172 slides on the No. 1 rod 171, the support rod 174 rotates on the pressure rod 173 and the slider 18 to keep the pressure rod 173 located in the middle of two adjacent blades 172, so that after the blade 172 slides, the pressure rod 173 keeps working normally; the blade 172 slides, and after the blade 172 slides, the blade 172 still corresponds to the annular groove 15, so that when the pelletizer is pelletizing, the distance between the blades 172 is suitable for pelletizing hot melt glue sticks of different sizes, thereby improving the use efficiency of the pelletizer;

[0046] As a specific embodiment of the present invention, the lower end of the pressure rod 173 is fixedly connected with a rubber layer, and the rubber layer is used to avoid damaging the surface of the hot melt glue stick;

[0047] During use, by fixing the rubber layer on the lower end face of the pressure rod 173, when the electric telescopic rod 17 moves downward, the electric telescopic rod 17 pushes the No. 1 rod 171 to move downward, the pressure rod 173 contacts the hot melt glue stick, the pressure rod 173 squeezes the hot melt glue stick, and then the blade 172 pelletizes the hot melt glue stick, and the No. 1 rod 171 continues to move downward, the spring squeezes the pressure rod 173, and the pressure rod 173 continues to limit the hot melt glue stick, and by fixing the rubber layer on the lower end face of the No. 1 rod 171, when the pressure rod 173 squeezes the hot melt glue stick, the rubber layer material is relatively soft, which avoids the pressure rod 173 surface from damaging the hot melt glue stick surface, thereby improving the use efficiency of the pelletizer.

[0048] A method for preparing a UV-curable polyolefin hot melt adhesive, the method is applicable to the above-mentioned UV-curable polyolefin hot melt adhesive preparation device, and the method comprises the following steps:

[0049] S1: The hot melt adhesive is put into a hot melt machine for hot melting, and the hot melt time of the hot melt adhesive in the hot melt machine is 40-55 minutes. After the hot melt adhesive raw material is hot melted, the hot melt adhesive raw material is put into a mixer for stirring for 30-40 minutes. After the stirring in the mixer is completed, the stirred hot melt adhesive raw material is put into an extruder for extrusion into a rod;

[0050] S2: After the hot melt adhesive raw material is extruded in the extruder, the extruded hot melt adhesive stick is sent to the cooling pool for low-temperature cooling. The cooling time is 30 minutes. After the hot melt adhesive stick is cooled, it is sent to the conveyor belt. The hot melt adhesive stick is sent to the pelletizer. Then the hot melt adhesive stick enters the top of the No. 1 block 11, and then enters the top of the No. 2 block 12 through the No. 1 hole 13;

[0051] S3: The controller controls the electric telescopic rod 17 to extend downward, the No. 1 rod 171 moves downward, the blade 172 moves downward with the No. 1 rod 171, the blade 172 cuts the hot melt glue stick, and the pressure rod 173 squeezes the hot melt glue stick to keep the hot melt glue stick stable. When the blade 172 completes the cutting, the electric telescopic rod 17 moves upward. When the blade 172 completes the cutting, the controller controls the motor to rotate 90 degrees, the upper end face of the No. 2 block 12 rotates to the rear side of the pelletizer, and the front end face of the No. 2 block 12 rotates to the upper end of the No. 2 block 12, so that the hot melt glue particles cut on the No. 2 block 12 are collected behind the pelletizer to obtain finished hot melt glue particles.

[0052] The specific workflow is as follows:

[0053] When the hot melt glue stick is extruded by the extruder, the hot melt glue stick is cooled and shaped. When the hot melt glue stick is cooled, the hot melt glue stick is pelletized by using a pelletizer, and the hot melt glue stick is transferred to the No. 1 block 11. A No. 1 groove 14 is opened on the No. 1 block 11. When the hot melt glue stick enters the No. 1 groove 14, the No. 1 groove 14 limits the hot melt glue stick, thereby ensuring the stability of the hot melt glue stick during cutting. Then, the hot melt glue stick is passed through the No. 1 hole 13 on the shell 1 and enters the No. 2 block 12. The hot melt glue stick enters the No. 2 groove 16 on the upper end surface of the No. 2 block 12. When the hot melt glue stick completely enters the No. 2 groove 16, the controller controls the electric telescopic rod 17 to extend downward, and the guide rod of the electric telescopic rod 17 pushes the No. 1 rod 171 to move downward. The blade 172 moves downward with the No. 1 rod 171, and the blade 172 cuts the hot melt glue stick. When the blade 172 cuts the hot melt glue stick, the pressure rod 173 between the blades 172 first contacts the hot melt glue stick, and the pressure rod 17 3 squeezes the hot melt glue stick to keep the hot melt glue stick stable. After the pressure rod 173 squeezes the hot melt glue stick, the blade 172 continues to move downward, and the slider 18 slides on the side of the blade 172. The slider 18 cleans the impurities on the blade 172. When the blade 172 completes the cutting, the electric telescopic rod 17 moves upward, the blade 172 moves upward, the pressure rod 173 is acted upon by the spring, and the slider 18 slides downward on the side of the blade 172. The pressure rod 173 presses the blade 1 The hot melt glue stick between the blades 172 is pushed to prevent the hot melt glue stick from being stuck between the blades 172, thereby improving the efficiency of the pelletizer. When the blade 172 completes cutting, the controller controls the motor to rotate 90 degrees, and the upper end face of the No. 2 block 12 rotates to the rear side of the pelletizer, and the front end face of the No. 2 block 12 rotates to the upper end of the No. 2 block 12, so that the hot melt glue particles cut on the No. 2 block 12 are collected at the rear of the pelletizer, and then the hot melt glue stick continues to enter the No. 2 groove 16 on the No. 2 block 12 for cutting.

[0054] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 2 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0055] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0056] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art without making creative efforts are within the scope of protection of the present invention.

Claims

1. A UV curing polyolefin hot melt adhesive preparation device, characterized in that: The invention comprises a shell (1), a first block (11), a motor and a second block (12); the right side of the shell (1) is evenly provided with a first hole (13); the first block (11) is fixedly connected to the lower side of the right end face of the shell (1); the upper end face of the first block (11) is evenly provided with a first groove (14); the first groove (14) is connected to the first hole (13); the first groove (14) runs through the left and right end faces of the first block (11); the motor is fixedly connected to the first block (12); 11) is close to one end of the housing (1), the output shaft of the motor extends into the housing (1), one end of the second block (12) is fixedly connected to one end of the output shaft of the motor, and the end face of the second block (12) away from the motor is rotatably connected to the inner wall of the housing (1) through a rotating shaft. The second block (12) is in the shape of a cube, and a group of annular grooves (15) are evenly opened on the surface of the second block (12). The distance between each two annular grooves (15) is the same. The upper, lower, front and rear end surfaces of the No. 2 block (12) are evenly provided with No. 2 grooves (16), and the No. 2 grooves (16) are the same as the No. 1 grooves (14); the top of the housing (1) is fixedly connected with an electric telescopic rod (17), the lower end of the guide rod of the electric telescopic rod (17) is fixedly connected with a No. 1 rod (171), the No. 1 rod (171) is parallel to the top of the housing (1), and a group of blades (172) are evenly arranged below the No. 1 rod (171), each of the blades The blades (172) are arranged corresponding to the annular grooves (15); a pressure rod (173) is arranged between adjacent blades (172); the upper end surface of the pressure rod (173) is fixedly connected to the lower end surface of the first rod (171) through a spring; support rods (174) are hinged on both sides of the pressure rod (173); a slider (18) is hinged at one end of the support rod (174) away from the pressure rod (173); and the slider (18) is slidably connected to the blade (172); A rectangular groove (181) is formed at one end of the slider (18) close to the blade (172), a roller (182) is rotatably connected in the rectangular groove (181) via a rotating shaft, and the roller (182) is in contact with the blade (172); The lower end surfaces of the pressure rod (173) and the blade (172) are both provided with a groove (19), and the position of the groove (19) corresponds to the position of the second groove (16); The shapes of the No. 1 groove (14), the No. 2 groove (16) and the groove (19) are all semicircular, so that the shapes of the No. 1 groove (14), the No. 2 groove (16) and the groove (19) fit the shape of the hot melt adhesive stick; The upper end surface of the blade (172) is slidably connected to the lower end surface of the first rod (171), and the width between the blades (172) is adjusted by bolts on both sides of the blade (172); The lower end of the pressure rod (173) is fixedly connected with a rubber layer, and the rubber layer is used to avoid damaging the surface of the hot melt glue stick; The hot melt glue stick is extruded by the extruder and then cooled and shaped. After the hot melt glue stick is cooled, it is pelletized by a pelletizer. The hot melt glue stick is transferred to the No. 1 block (11). A No. 1 groove (14) is provided on the No. 1 block (11). When the hot melt glue stick enters the No. 1 groove (14), the No. 1 groove (14) limits the hot melt glue stick, thereby ensuring the stability of the hot melt glue stick during cutting. The hot melt glue stick is then passed through the No. 1 hole (13) on the shell (1) and enters the upper end surface of the No. 2 block (12). The glue stick enters the No. 2 groove (16) on the upper end surface of the No. 2 block (12). When the hot melt glue stick completely enters the No. 2 groove (16), the controller controls the electric telescopic rod (17) to extend downward, and the guide rod of the electric telescopic rod (17) pushes the No. 1 rod (171) to move downward. The blade (172) moves downward along with the No. 1 rod (171), and the blade (172) cuts the hot melt glue stick. When the blade (172) cuts the hot melt glue stick, the pressure rod (173) between the blades (172) first contacts the hot melt glue stick, and the pressure rod (173) contacts the hot melt glue stick. The hot melt glue stick is squeezed to keep the hot melt glue stick stable. After the pressure rod (173) squeezes the hot melt glue stick, the blade (172) continues to move downward, the slider (18) slides on the side of the blade (172), and the slider (18) cleans the impurities on the blade (172). When the blade (172) completes cutting, the electric telescopic rod (17) moves upward, the blade (172) moves upward, the pressure rod (173) is acted upon by the spring, the slider (18) slides downward on the side of the blade (172), and the pressure rod (173) moves the blade. The hot melt glue stick between the blades (172) is pushed to prevent the hot melt glue stick from being stuck between the blades (172), thereby improving the use efficiency of the pelletizer. When the blades (172) have completed cutting, the controller controls the motor to rotate (90) degrees, the upper end face of the No. 2 block (12) rotates to the rear side of the pelletizer, and the front end face of the No. 2 block (12) rotates to the upper end of the No. 2 block (12), so that the hot melt glue particles cut on the No. 2 block (12) are collected at the rear of the pelletizer, and then the hot melt glue stick continues to enter the No. 2 groove (16) on the No. 2 block (12) for cutting.

2. A method for preparing a UV-curable polyolefin hot melt adhesive, characterized in that: The method is applicable to the UV curing polyolefin hot melt adhesive preparation device according to claim 1, and the method comprises the following steps: S1: The hot melt adhesive is put into a hot melt machine for hot melting, and the hot melt time of the hot melt adhesive in the hot melt machine is 40-55 minutes. After the hot melt adhesive raw material is hot melted, the hot melt adhesive raw material is put into a mixer for stirring for 30-40 minutes. After the stirring in the mixer is completed, the stirred hot melt adhesive raw material is put into an extruder for extrusion into a rod; S2: After the hot melt adhesive raw material is extruded in the extruder, the extruded hot melt adhesive stick is transferred to the cooling pool for low-temperature cooling. The cooling time is 30 minutes. After the hot melt adhesive stick is cooled, it is sent to the conveyor belt. The hot melt adhesive stick is then transferred to the pelletizer. The hot melt adhesive stick then enters the top of block No. 1 (11), and then enters the top of block No. 2 (12) through hole No. 1 (13); S3: The controller controls the electric telescopic rod (17) to extend downward, the No. 1 rod (171) to move downward, the blade (172) moves downward along with the No. 1 rod (171), the blade (172) cuts the hot melt glue stick, and the pressure rod (173) squeezes the hot melt glue stick to keep the hot melt glue stick stable. When the blade (172) completes the cutting, the electric telescopic rod (17) moves upward. When the blade (172) completes the cutting, the controller controls the motor to rotate 90 degrees, the upper end face of the No. 2 block (12) rotates to the rear side of the pelletizer, and the front end face of the No. 2 block (12) rotates to the upper end of the No. 2 block (12), so that the hot melt glue particles cut on the No. 2 block (12) are collected behind the pelletizer to obtain finished hot melt glue particles.

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