Hot melt adhesive preparation device and hot melt adhesive

Abstract

The invention relates to the technical field of hot melt adhesive extrusion equipment, and discloses a hot melt adhesive preparation device and a hot melt adhesive. The hot melt adhesive preparation device comprises a first support, an extruder used for extruding the hot melt adhesive is arranged on the first support, a discharging port is formed in one side of the extruder, a second support is arranged on the side of the first support, and a fixing plate is installed on the second support; a cooling mold used for cooling and shaping the hot melt adhesive is rotationally installed on the fixing plate, a plurality of through holes are formed in the cooling mold, the through holes are formed in the cooling mold in an annular array mode, when the hot melt adhesive is extruded, one through hole is correspondingly attached to the discharging port, and a discharging hole used for discharging the cooled hot melt adhesive is formed in the fixing plate. According to the device, the hot melt adhesive is cooled and shaped through the cooling mold, the hot melt adhesive is prevented from deforming after being extruded out of the discharging opening, the cooled and shaped hot melt adhesive is automatically discharged through the device, and therefore the reliability and practicability of the device are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of hot melt adhesive extrusion equipment, and particularly to a hot melt adhesive preparation device and a hot melt adhesive. Background Art

[0002] A hot melt adhesive is an adhesive that is solid at room temperature, melts into a liquid when heated to a certain temperature, and can quickly solidify and play an adhesive role after cooling. When processing the hot melt adhesive, first, the raw materials of the hot melt adhesive are heated and melted. The melted hot melt adhesive is poured into an extruder, and the extruder extrudes the melted hot melt adhesive liquid. Then, the extruded hot melt adhesive is cooled and shaped. After being formed, the hot melt adhesive needs to be cooled and solidified to reach a certain hardness and strength.

[0003] In the existing hot melt adhesive preparation device, the hot melt adhesive rod extruded by the extruder directly falls into a water tank for cooling and fixing. Since the freshly extruded hot melt adhesive is soft in texture, it bends and deforms during the process of falling into the water tank, resulting in a certain curvature of the product adhesive rod, which is not convenient for later use. Therefore, it does not meet the existing requirements. For this reason, we propose a hot melt adhesive preparation device and a hot melt adhesive. Summary of the Invention

[0004] The present invention provides a hot melt adhesive preparation device and a hot melt adhesive, which have the beneficial effect that the extruder extrudes the hot melt adhesive into the through holes of the cooling mold for cooling and shaping, thereby preventing the hot melt adhesive rod from bending and being beneficial to the later use of the adhesive rod. It solves the problem mentioned in the above background art that in the existing hot melt adhesive preparation device, the hot melt adhesive rod extruded by the extruder directly falls into the water tank for cooling and fixing. Since the freshly extruded hot melt adhesive is soft in texture, it bends and deforms during the process of falling into the water tank, resulting in a certain curvature of the product adhesive rod, which is not convenient for later use.

[0005] The present invention provides the following technical solution: A hot melt adhesive preparation device and a hot melt adhesive, including a first support. An extruder for extruding the hot melt adhesive is provided on the first support. A discharge port is provided on one side of the extruder. A second support is provided on the side of the first support. A fixing plate is installed on the second support. A cooling mold for cooling and shaping the hot melt adhesive is rotatably installed on the fixing plate. A plurality of through holes are formed in the cooling mold. The through holes are arranged in a circular array on the cooling mold. When extruding the hot melt adhesive, one of the through holes corresponds to and fits with the discharge port.

[0006] A motor for driving the cooling mold to rotate is provided on the second support. A first rotating shaft is rotatably installed on the fixing plate. One end of the first rotating shaft is fixedly connected to the output shaft of the motor, and the other end of the first rotating shaft is fixedly connected to the cooling mold.

[0007] A blanking mechanism for discharging the cooled hot melt adhesive is provided on the second bracket. The blanking mechanism includes a push rod movably arranged on the side of the blanking hole, and a blanking hole opened on the fixed plate for discharging the cooled hot melt adhesive.

[0008] When the hot melt adhesive to be discharged corresponds to the blanking hole, the push rod extends into the blanking hole to push out the hot melt adhesive to complete the blanking.

[0009] As an alternative solution of the hot melt adhesive preparation device and the hot melt adhesive of the present invention, wherein: an installation bracket is provided on the second bracket, a transmission shaft is rotatably installed on the installation bracket, a transmission gear is installed at one end of the transmission shaft, the transmission gear is in transmission connection with the first rotating shaft, a transmission gear is installed at the other end of the transmission shaft, and the transmission gear is in transmission connection with the push rod.

[0010] As an alternative solution of the hot melt adhesive preparation device and the hot melt adhesive of the present invention, wherein: a plurality of first abutting rods are installed on the first rotating shaft, and the number of the first abutting rods is the same as that of the through holes;

[0011] A second chute is provided on the side of the fixed plate, a wedge-shaped strip is slidably installed in the second chute, the inclined surface of the wedge-shaped strip intermittently abuts against the first abutting rod, a first compression spring is arranged in the second chute, one end of the first compression spring abuts against the wedge-shaped strip, a rack is installed on the side of the wedge-shaped strip, and the rack meshes with the driving gear.

[0012] As an alternative solution of the hot melt adhesive preparation device and the hot melt adhesive of the present invention, wherein: the blanking mechanism further includes a first chute installed on the installation bracket, a movable rack is slidably installed in the first chute, and one end of the push rod is fixedly connected with the movable rack;

[0013] A second rotating shaft is rotatably installed on the installation bracket, a rotating rod is installed on the second rotating shaft, one end of the rotating rod is hinged with a pull rod, a reciprocating gear is rotatably installed at one end of the pull rod, and the reciprocating gear meshes with the movable rack;

[0014] A fixed rack is further installed on the installation bracket, and the fixed rack meshes with the reciprocating gear.

[0015] As an alternative solution of the hot melt adhesive preparation device and the hot melt adhesive of the present invention, wherein: a driven gear is rotatably installed on the installation bracket, the driven gear meshes with the transmission gear, a ratchet wheel is arranged on the driven gear, a pawl is arranged on the second rotating shaft, and the ratchet wheel and the pawl are movably engaged.

[0016] As a hot melt adhesive preparation device and hot melt adhesive optional scheme described in the present invention, wherein: one end of the discharge port is equipped with a discharge pipe for docking with the through hole, a rotating sleeve is rotatably installed on the discharge pipe, a torsion spring is arranged in the rotating sleeve, the other end of the torsion spring is fixedly installed on the discharge pipe, a resistance plate is installed on the lower side of the rotating sleeve, and a plurality of No. 2 resistance rods are installed on the cooling mold, the number of the No. 2 resistance rods is the same as the number of the through holes, and the No. 2 resistance rods and the resistance plate intermittently resist each other.

[0017] As a hot melt adhesive preparation device and hot melt adhesive optional solution described in the present invention, wherein: a groove is opened at one end of the discharge pipe, an arc-shaped blade for cutting the hot melt adhesive is movably arranged in the groove, a tension spring is arranged in the groove, and the other end of the tension spring is connected to the arc-shaped blade;

[0018] The inner wall of the rotating sleeve is provided with a protrusion, and the side of the arc-shaped blade is installed with a movable rod, and one end of the movable rod intermittently conflicts with the protrusion.

[0019] As a hot melt adhesive preparation device and hot melt adhesive optional solution described in the present invention, wherein: an air bag is installed on the side of the fixing plate, a No. 1 one-way valve is installed at the air inlet of the air bag, a gas pipeline is installed at the air outlet of the air bag, a pressure rod for pressing the air bag is provided on the push rod, and a gas channel for communicating with the gas pipeline is opened in the push rod;

[0020] When the material is discharged, the gas discharged from the gas channel blows out the hot melt adhesive.

[0021] As a hot melt adhesive preparation device and hot melt adhesive optional solution of the present invention, wherein: a release agent box for containing a release agent is arranged above the first slide groove, and a liquid pipeline is installed on the release agent box;

[0022] A liquid channel for releasing the release agent is also provided in the push rod, and the liquid channel includes a No. 1 vertical channel, a horizontal channel and a No. 2 vertical channel. The No. 1 vertical channel, the horizontal channel and the No. 2 vertical channel are connected in sequence. A No. 2 one-way valve is provided at one end of the No. 2 vertical channel so that the release agent can only enter the No. 2 vertical channel in one direction. One end of the No. 2 one-way valve is connected to the liquid pipeline, and one end of the No. 2 vertical channel is connected to the gas channel.

[0023] As a hot melt adhesive preparation device and hot melt adhesive optional scheme described in the present invention, wherein: a hot melt adhesive is prepared by the hot melt adhesive preparation device.

[0024] The present invention has the following beneficial effects:

[0025] 1. The hot melt adhesive preparation device and the hot melt adhesive, the extruder squeezes the hot melt adhesive into the through hole on the cooling mold through the discharge port. After the hot melt adhesive fills the through hole, the motor drives the cooling mold to rotate. During the rotation of the cooling mold, the No. 1 compression spring is compressed and stored. When the cooling mold stops rotating, the No. 1 resistance rod is separated from the wedge strip, and the wedge strip moves upward under the elastic force of the No. 1 compression spring. At this time, the ratchet installed on the side of the driven gear is engaged with the pawl installed on the No. 2 rotating shaft, thereby driving the No. 2 rotating shaft to rotate, the rotating rod makes a circular motion, and the pull rod installed at one end of the rotating rod makes a reciprocating swing, further driving the reciprocating gear to reciprocate, further driving the movable rack to reciprocate, and the movable rack just completes a motion cycle, and the push rod extends into the discharge hole to push out the cooled hot melt adhesive and then resets it. The device uses the cooling mold to cool and shape the hot melt adhesive to prevent the hot melt adhesive from being deformed after being extruded from the discharge port, and the device automatically discharges the hot melt adhesive after cooling and shaping, thereby increasing the reliability and practicality of the device.

[0026] 2. The hot melt adhesive preparation device and the hot melt adhesive, when the cooling mold rotates, the second resistance rod installed on the cooling mold resists against the resistance plate, thereby driving the rotating sleeve to rotate. Furthermore, the protrusion arranged inside the rotating sleeve resists against the movable rod, so that the movable rod overcomes the tension of the tension spring and moves to one side, further driving the arc-shaped blade to move to complete the cutting of the hot melt adhesive. The cross-section of the hot melt adhesive after cutting by the arc-shaped blade is smooth and not easy to produce burrs, which facilitates the later use of the hot melt adhesive and further increases the practicality of the device.

[0027] 3. The hot melt adhesive preparation device and the hot melt adhesive, when feeding, the push rod extends into the feeding hole, at which time the pressure rod contacts the air bag, and the gas discharged from the air bag is discharged through the gas channel, thereby pushing out the cooled hot melt adhesive in the through hole, avoiding the contact between one end of the push rod and the hot melt adhesive to cause local deformation of the hot melt adhesive or sticking due to contact, thereby ensuring the shape stability of the hot melt adhesive;

[0028] Moreover, the gas in the gas channel will also enter into the No. 2 vertical channel, blowing the release agent in the horizontal channel out from the No. 1 vertical channel. The release agent sprayed from the No. 1 vertical channel adheres to the inner wall of the through hole, reducing the adhesion between the next hot melt adhesive and the through hole, thereby facilitating the next demolding and further increasing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0030] Figure 2 It is a schematic diagram of the structure of the No. 2 bracket of the present invention.

[0031] Figure 3 It is a schematic diagram of the exploded structure of the driven gear and the second rotating shaft of the present invention.

[0032] Figure 4 It is a structural schematic diagram of the first resistance rod of the present invention.

[0033] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0034] Figure 6 It is a schematic diagram of the three-dimensional structure of the rotating sleeve of the present invention.

[0035] Figure 7 It is a schematic diagram of the cross-sectional structure of the rotating sleeve of the present invention.

[0036] Figure 8 It is a schematic diagram of the cross-sectional structure of the discharge pipe of the present invention.

[0037] Figure 9 It is a schematic structural diagram of the cross section of the present invention.

[0038] Figure 10 It is a schematic diagram of the cross-sectional structure of the push rod of the present invention.

[0039] In the figure: 101, bracket No. 1; 102, discharge port; 104, discharge pipe; 105, extruder; 200, unloading mechanism; 201, bracket No. 2; 202, motor; 203, cooling mold; 204, through hole; 205, fixed plate; 206, mounting bracket; 207, movable rack; 208, fixed rack; 209, transmission gear; 210, driven gear; 211, rotating rod; 212, push rod; 213, No. 1 contact rod; 214, unloading hole; 215, No. 1 slide; 216, pull rod; 217, reciprocating gear; 218, transmission shaft; 219, driving gear; 220, ratchet; 221, No. 2 rotating shaft; 222, ratchet Claw; 223, rack; 224, compression spring No. 1; 225, slide groove No. 2; 226, wedge strip; 227, rotating shaft No. 1; 301, rotating sleeve; 302, bump; 303, resistance plate; 304, groove; 305, arc blade; 306, tension spring; 307, movable rod; 308, resistance rod No. 2; 309, torsion spring; 4100, liquid channel; 409, vertical channel No. 1; 411, horizontal channel; 412, vertical channel No. 2; 401, airbag; 402, gas pipeline; 403, liquid pipeline; 404, demoulding agent box; 405, one-way valve No. 1; 406, pressure rod; 407, one-way valve No. 2; 408, gas channel. DETAILED DESCRIPTION

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] Embodiment 1. This embodiment aims to facilitate the solution of the problem that in the existing hot melt adhesive preparation device, the hot melt adhesive stick extruded by the extruder directly falls into the water tank for cooling and fixing. Since the just-extruded hot melt adhesive is soft in texture, it bends and deforms during the process of falling into the water tank, resulting in a certain arc of the product adhesive stick, thus affecting the appearance and quality of the product and being inconvenient for later use. Please refer to Figures 1 to 10 , a hot melt adhesive preparation device and hot melt adhesive, including a first bracket 101, an extruder 105 for extruding hot melt adhesive is arranged on the first bracket 101, a discharge port 102 is arranged on one side of the extruder 105, a second bracket 201 is arranged on the side of the first bracket 101, a fixing plate 205 is installed on the second bracket 201, a cooling mold 203 for cooling and shaping the hot melt adhesive is rotatably installed on the fixing plate 205, a plurality of through holes 204 are opened on the cooling mold 203, and the through holes 204 are arranged in a circular array on the cooling mold 203. When extruding the hot melt adhesive, one of the through holes 204 corresponds to and fits with the discharge port 102. A motor 202 for driving the cooling mold 203 to rotate is arranged on the second bracket 201. A first rotating shaft 227 is rotatably installed on the fixing plate 205. One end of the first rotating shaft 227 is fixedly connected to the output shaft of the motor 202, and the other end of the first rotating shaft 227 is fixedly connected to the cooling mold 203.

[0042] Specifically, please refer to Figure 2 , a blanking mechanism 200 for blanking the cooled hot melt adhesive is arranged on the second bracket 201. The blanking mechanism 200 includes a push rod 212 movably arranged on the side of the blanking hole 214, and a blanking hole 214 opened on the fixing plate 205 for blanking the cooled hot melt adhesive. When the hot melt adhesive to be blanked corresponds to the blanking hole 214, the push rod 212 extends into the blanking hole 214 to push out the hot melt adhesive to complete the blanking.

[0043] Among them, the extruder 105 and the motor 202 are set to operate intermittently. When the cooling mold 203 is stationary, the extruder 105 extrudes the hot melt adhesive outward, and at the same time, the blanking mechanism 200 blanks the cooled and shaped hot melt adhesive. When the extruder 105 stops extruding the hot melt adhesive, the cooling mold 203 rotates.

[0044] Among them, an installation bracket 206 is provided on the second bracket 201. A transmission shaft 218 is rotatably installed on the installation bracket 206. One end of the transmission shaft 218 is installed with a transmission gear 209. The transmission gear 209 is in transmission connection with the first rotating shaft 227. The other end of the transmission shaft 218 is installed with a transmission gear 209. The transmission gear 209 is in transmission connection with the push rod 212.

[0045] In addition, the blanking mechanism 200 further includes a first sliding groove 215 installed on the installation bracket 206. A movable rack 207 is slidably installed in the first sliding groove 215. One end of the push rod 212 is fixedly connected to the movable rack 207. A second rotating shaft 221 is rotatably installed on the installation bracket 206. A rotating rod 211 is installed on the second rotating shaft 221. One end of the rotating rod 211 is hinged with a pull rod 216. One end of the pull rod 216 is rotatably installed with a reciprocating gear 217. The reciprocating gear 217 meshes with the movable rack 207. A fixed rack 208 is further installed on the installation bracket 206. The fixed rack 208 meshes with the reciprocating gear 217.

[0046] In addition, please refer to Figure 3 , a driven gear 210 is rotatably installed on the installation bracket 206. The driven gear 210 meshes with the transmission gear 209. A ratchet 220 is provided on the driven gear 210. A pawl 222 is provided on the second rotating shaft 221. The ratchet 220 and the pawl 222 are movably engaged. Among them, the pawl 222 can rotate unidirectionally through spring cooperation, so that the ratchet 220 and the pawl 222 can only be engaged unidirectionally. The ratchet and pawl are common mechanical cooperation means and are well known to those skilled in the art, so they will not be elaborated here.

[0047] It should be noted that when the cooling die 203 rotates, the first abutting rod 213 installed on the first rotating shaft 227 abuts against the inclined surface of the wedge bar 226. The wedge bar 226 drives the rack 223 to move downward, further driving the driving gear 219, the transmission shaft 218, the transmission gear 209, and the driven gear 210 to rotate. At this time, since the ratchet 220 and the pawl 222 are not engaged, the second rotating shaft 221 will not rotate. When the cooling die 203 stops rotating, the first abutting rod 213 is separated from the wedge bar 226. The wedge bar 226 drives the rack 223 to move upward, further driving the driving gear 219, the transmission shaft 218, the transmission gear 209, and the driven gear 210 to rotate in the reverse direction. At this time, the ratchet 220 will engage with the pawl 222, so that the second rotating shaft 221 rotates.

[0048] In addition, please refer to Figure 4 , Figure 5, A plurality of first abutting rods 213 are installed on the first rotating shaft 227. The number of the first abutting rods 213 is the same as that of the through holes 204. A second sliding groove 225 is provided on the side of the fixing plate 205. A wedge-shaped bar 226 is slidably installed in the second sliding groove 225. The inclined surface of the wedge-shaped bar 226 intermittently abuts against the first abutting rod 213. A first compression spring 224 is arranged in the second sliding groove 225. One end of the first compression spring 224 abuts against the wedge-shaped bar 226. A rack 223 is installed on the side of the wedge-shaped bar 226. The rack 223 meshes with the driving gear 219.

[0049] In this embodiment, a hot melt adhesive is also proposed, which is made by the hot melt adhesive preparation device mentioned in this embodiment.

[0050] In this embodiment: The extruder 105 extrudes the hot melt adhesive into the through hole 204 on the cooling mold 203 through the discharge port 102. After the through hole 204 is filled with the hot melt adhesive, the motor 202 drives the cooling mold 203 to rotate. During the rotation of the cooling mold 203, the first abutting rod 213 installed on the first rotating shaft 227 abuts against the inclined surface of the wedge-shaped bar 226. At this time, the wedge-shaped bar 226 moves downward, and the first compression spring 224 compresses and stores energy. When the cooling mold 203 stops rotating, the first abutting rod 213 separates from the wedge-shaped bar 226. The wedge-shaped bar 226 moves upward under the elastic force of the first compression spring 224. At this time, the rack 223 installed on the side of the wedge-shaped bar 226 drives the transmission shaft 218 to rotate through the engagement with the driving gear 219, drives the transmission gear 209 installed at the other end of the transmission shaft 218 to rotate, and further drives the driven gear 210 to rotate. At this time, the ratchet 220 installed on the side of the driven gear 210 engages with the pawl 222 installed on the second rotating shaft 221, so that the second rotating shaft 221 rotates. At this time, the rotating rod 211 makes a circular motion, and the pull rod 216 installed at one end of the rotating rod 211 makes a reciprocating swing, further driving the reciprocating gear 217 to move reciprocally, thereby driving the movable rack 207 to move reciprocally. Moreover, the movable rack 207 just completes a motion cycle, so that the push rod 212 extends into the blanking hole 214 to push out the cooled hot melt adhesive, and then the push rod 212 is reset. This device uses the cooling mold 203 to cool and shape the hot melt adhesive, preventing the hot melt adhesive from deforming after being extruded from the discharge port 102. Moreover, this device automatically discharges the cooled and shaped hot melt adhesive, thus increasing the reliability and practicability of this device.

[0051] Embodiment 2. The purpose of this embodiment is to promote the solution of the problem that the hot melt adhesive is cut off by mutual dislocation between the cooling mold 203 and the discharge port 102, resulting in an uneven cut surface of the hot melt adhesive and burrs. This embodiment is an improvement made on the basis of Embodiment 1. Please refer to Figures 1 to 10 , specifically see Figure 9A discharge pipe 104 for docking with the through hole 204 is installed at one end of the discharge port 102, and a rotating sleeve 301 is rotatably installed on the discharge pipe 104. Figure 7 A torsion spring 309 for resetting the rotating sleeve 301 is arranged inside the rotating sleeve 301, and the other end of the torsion spring 309 is fixedly mounted on the discharge pipe 104. A resistance plate 303 is mounted on the lower side of the rotating sleeve 301, and a plurality of No. 2 resistance rods 308 are mounted on the cooling mold 203. The number of No. 2 resistance rods 308 is the same as the number of through holes 204, and the No. 2 resistance rods 308 and the resistance plate 303 are intermittently in resistance.

[0052] A groove 304 is provided at one end of the discharge pipe 104, and an arc-shaped blade 305 for cutting hot melt adhesive is movably arranged in the groove 304. A tension spring 306 is arranged in the groove 304, and the other end of the tension spring 306 is connected to the arc-shaped blade 305. A protrusion 302 is provided on the inner wall of the rotating sleeve 301, and a movable rod 307 is installed on the side of the arc-shaped blade 305, and one end of the movable rod 307 intermittently contacts the protrusion 302.

[0053] In this embodiment: when the cooling mold 203 rotates, the second resistance rod 308 installed on the cooling mold 203 resists against the resistance plate 303, thereby driving the rotating sleeve 301 to rotate. Further, the protrusion 302 arranged inside the rotating sleeve 301 resists against the movable rod 307, so that the movable rod 307 overcomes the tension of the tension spring 306 and moves to one side, further driving the arc blade 305 to move to complete the cutting of the hot melt adhesive. The cross-section of the hot melt adhesive after cutting by the arc blade 305 is smooth and not easy to produce burrs, which facilitates the later use of the hot melt adhesive and further increases the practicality of the device.

[0054] Embodiment 3: This embodiment is intended to solve the problem that the hot melt adhesive still has residual temperature after cooling. When feeding, one end of the push rod 212 conflicts with the hot melt adhesive, causing local deformation of the hot melt adhesive. This embodiment is an improvement made on the basis of embodiment 2. For details, please refer to Figures 1 to 10 An airbag 401 is installed on the side of the fixed plate 205, a No. 1 one-way valve 405 is installed at the air inlet of the airbag 401, a gas pipeline 402 is installed at the air outlet of the airbag 401, a pressure rod 406 for pressing the airbag 401 is provided on the push rod 212, and a gas channel 408 for connecting with the gas pipeline 402 is opened in the push rod 212. When unloading, the gas discharged from the gas channel 408 blows out the hot melt adhesive.

[0055] The No. 1 one-way valve 405 includes a pipeline and a baffle hinged in the pipeline. The baffle can only rotate in one direction through a spring, so that the gas can only pass through the pipeline in one direction. The specific structure and function of the No. 1 one-way valve 405 are well known to those skilled in the art and will not be elaborated here.

[0056] Above the first chute 215, there is a release agent box 404 for containing release agent. A liquid pipeline 403 is installed on the release agent box 404. A liquid channel 4100 for releasing release agent is also provided in the push rod 212. The liquid channel 4100 includes a first vertical channel 409, a horizontal channel 411 and a second vertical channel 412. The first vertical channel 409, the horizontal channel 411 and the second vertical channel 412 are connected in sequence. One end of the second vertical channel 412 is provided with a second one-way valve 407 that allows the release agent to enter the second vertical channel 412 only unidirectionally. One end of the second one-way valve 407 is connected to the liquid pipeline 403, and one end of the second vertical channel 412 is connected to the gas channel 408.

[0057] In this embodiment: during blanking, the push rod 212 extends into the blanking hole 214. At this time, the pressure rod 406 abuts against the airbag 401, and the gas discharged from the airbag 401 is discharged through the gas channel 408, so as to push out the cooled hot melt adhesive in the through hole 204, avoiding local deformation or adhesion of the hot melt adhesive caused by the contact between one end of the push rod 212 and the hot melt adhesive, thus ensuring the stable shape of the hot melt adhesive.

[0058] Moreover, the gas in the gas channel 408 will also enter the second vertical channel 412, blowing out the release agent in the horizontal channel 411 through the first vertical channel 409. The release agent ejected from the first vertical channel 409 adheres to the inner wall of the through hole 204, reducing the adhesion between the next hot melt adhesive and the through hole 204, thus facilitating the next demolding and further increasing the practicality of the device.

[0059] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0060] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A hot melt adhesive preparation device and hot melt adhesive, comprising a first bracket (101), on which an extruder (105) for extruding the hot melt adhesive is arranged, and a discharge port (102) is arranged on one side of the extruder (105), characterized in that: A second bracket (201) is arranged on the side of the first bracket (101), a fixing plate (205) is installed on the second bracket (201), a cooling mold (203) for cooling and shaping the hot melt adhesive is rotatably installed on the fixing plate (205), a plurality of through holes (204) are opened on the cooling mold (203), and the through holes (204) are arranged in a circular array on the cooling mold (203), and when the hot melt adhesive is extruded, one of the through holes (204) is correspondingly fitted with the discharge port (102); The No. 2 bracket (201) is provided with a motor (202) for driving the cooling mold (203) to rotate, and the No. 1 rotating shaft (227) is rotatably mounted on the fixed plate (205), one end of the No. 1 rotating shaft (227) is fixedly connected to the output shaft of the motor (202), and the other end of the No. 1 rotating shaft (227) is fixedly connected to the cooling mold (203); The second bracket (201) is provided with a feeding mechanism (200) for feeding the cooled hot melt adhesive, the feeding mechanism (200) comprising a push rod (212) movably arranged on the side of the feeding hole (214), and a feeding hole (214) provided on the fixed plate (205) for feeding the cooled hot melt adhesive; When the hot melt adhesive to be discharged corresponds to the discharge hole (214), the push rod (212) extends into the discharge hole (214) to push the hot melt adhesive out to complete the discharge.

2. A hot melt adhesive preparation device and hot melt adhesive according to claim 1, characterized in that: The second bracket (201) is provided with a mounting bracket (206), and a transmission shaft (218) is rotatably mounted on the mounting bracket (206). A transmission gear (209) is mounted on one end of the transmission shaft (218), and the transmission gear (209) is in transmission connection with the first rotating shaft (227). A transmission gear (209) is mounted on the other end of the transmission shaft (218), and the transmission gear (209) is in transmission connection with the push rod (212).

3. A hot melt adhesive preparation device and hot melt adhesive according to claim 2, characterized in that: A plurality of first-numbered abutment rods (213) are mounted on the first-numbered rotating shaft (227), and the number of the first-numbered abutment rods (213) is the same as the number of the through holes (204); A No. 2 slide groove (225) is provided on the side of the fixed plate (205), and a wedge bar (226) is slidably installed in the No. 2 slide groove (225), and the inclined surface of the wedge bar (226) intermittently contacts the No. 1 contact rod (213). A No. 1 compression spring (224) is provided in the No. 2 slide groove (225), and one end of the No. 1 compression spring (224) contacts the wedge bar (226). A rack (223) is installed on the side of the wedge bar (226), and the rack (223) is meshed with the driving gear (219).

4. A hot melt adhesive preparation device and hot melt adhesive according to claim 2, characterized in that: The unloading mechanism (200) further comprises a No. 1 slide groove (215) mounted on the mounting bracket (206), a movable rack (207) being slidably mounted in the No. 1 slide groove (215), and one end of the push rod (212) is fixedly connected to the movable rack (207); A second rotating shaft (221) is rotatably mounted on the mounting bracket (206), a rotating rod (211) is mounted on the second rotating shaft (221), one end of the rotating rod (211) is hinged with a pull rod (216), one end of the pull rod (216) is rotatably mounted with a reciprocating gear (217), and the reciprocating gear (217) is meshed with the movable rack (207); A fixed rack (208) is also mounted on the mounting bracket (206), and the fixed rack (208) is meshed with the reciprocating gear (217).

5. A hot melt adhesive preparation device and hot melt adhesive according to claim 4, characterized in that: A driven gear (210) is rotatably mounted on the mounting bracket (206), the driven gear (210) meshes with the transmission gear (209), a ratchet (220) is arranged on the driven gear (210), a ratchet pawl (222) is arranged on the second rotating shaft (221), and the ratchet (220) and the ratchet pawl (222) are movably engaged with each other.

6. A hot melt adhesive preparation device and hot melt adhesive according to claim 1, characterized in that: A discharge pipe (104) for docking with the through hole (204) is installed at one end of the discharge port (102); a rotating sleeve (301) is rotatably installed on the discharge pipe (104); a torsion spring (309) is arranged inside the rotating sleeve (301); the other end of the torsion spring (309) is fixedly installed on the discharge pipe (104); a resistance plate (303) is installed on the lower side of the rotating sleeve (301); a plurality of No. 2 resistance rods (308) are installed on the cooling mold (203); the number of the No. 2 resistance rods (308) is the same as the number of the through holes (204); the No. 2 resistance rods (308) and the resistance plate (303) are intermittently in resistance.

7. A hot melt adhesive preparation device and hot melt adhesive according to claim 6, characterized in that: A groove (304) is provided at one end of the discharge pipe (104), an arc-shaped blade (305) for cutting hot melt adhesive is movably arranged in the groove (304), a tension spring (306) is arranged in the groove (304), and the other end of the tension spring (306) is connected to the arc-shaped blade (305); The inner wall of the rotating sleeve (301) is provided with a protrusion (302), and the side of the arc-shaped blade (305) is installed with a movable rod (307), and one end of the movable rod (307) intermittently contacts the protrusion (302).

8. A hot melt adhesive preparation device and hot melt adhesive according to claim 4, characterized in that: An air bag (401) is installed on the side of the fixing plate (205), a first check valve (405) is installed at the air inlet of the air bag (401), a gas pipeline (402) is installed at the air outlet of the air bag (401), a pressing rod (406) for pressing the air bag (401) is provided on the push rod (212), and a gas channel (408) for communicating with the gas pipeline (402) is opened in the push rod (212); When feeding, the gas discharged from the gas channel (408) blows out the hot melt adhesive.

9. A hot melt adhesive preparation device and hot melt adhesive according to claim 8, characterized in that: A release agent box (404) for containing a release agent is arranged above the first slide groove (215), and a liquid pipeline (403) is installed on the release agent box (404); The push rod (212) is also provided with a liquid channel (4100) for releasing the mold release agent. The liquid channel (4100) includes a No. 1 vertical channel (409), a horizontal channel (411) and a No. 2 vertical channel (412). The No. 1 vertical channel (409), the horizontal channel (411) and the No. 2 vertical channel (412) are connected in sequence. One end of the No. 2 vertical channel (412) is provided with a No. 2 one-way valve (407) that allows the mold release agent to enter the No. 2 vertical channel (412) in one direction. One end of the No. 2 one-way valve (407) is connected to the liquid pipeline (403), and one end of the No. 2 vertical channel (412) is connected to the gas channel (408).

10. A hot melt adhesive, characterized in that: Made by the hot melt adhesive preparation device described in any one of claims 1-9.

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