Polyurethane elastomer preparation device and preparation method

Abstract

The invention discloses a base polyurethane elastomer preparation device and method, and relates to the technical field of base polyurethane elastomer preparation.The base polyurethane elastomer preparation device and method comprise a bottom plate, a mold combining assembly is arranged on the bottom plate, a conveying piece is installed on the bottom plate, and a mold mounting plate is placed on the conveying piece; a stirring kettle is arranged on the bottom plate, a stirring assembly is arranged on the stirring kettle, a corrugated pipe is installed below the stirring kettle, an electric telescopic rod is installed on the pouring installation base, the end of the electric telescopic rod is connected with the corrugated pipe, a pouring sensor is installed on the pouring installation base, and a conveying piece conveys a mold after mold closing to a pouring position. The pouring sensor controls the electric telescopic rod to extend to drive the electric valve to extend into the mold to complete pouring, pouring is controlled by detecting the position of the mold through the pouring sensor, automation is achieved, the working efficiency can be improved, and the labor intensity of workers can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of the preparation of base polyurethane elastomers, and specifically to a device and a preparation method for the preparation of base polyurethane elastomers. Background Art

[0002] Coal mine hydraulic supports are key equipment used for supporting underground coal mining faces. They mainly consist of a top beam, a base, columns, jacks, and a hydraulic control system. Their core function is to achieve automatic lifting and pushing through hydraulic drive, providing safe and stable support for coal mining operations and preventing roof collapses.

[0003] When coal mine hydraulic supports are in use, some parts need to be waterproof. However, the pure water seals for coal mine hydraulic supports are relatively large in volume. When performing casting molding, manual mold closing is often required, and then the casting pipe needs to be aligned with the water inlet for pouring. The labor intensity of workers is high and the efficiency is low. Summary of the Invention

[0004] The purpose of the present invention is to provide a device and a preparation method for the preparation of base polyurethane elastomers to solve the problems raised in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: The device and the preparation method for the preparation of base polyurethane elastomers include a bottom plate. A mold closing assembly is arranged on the bottom plate. A conveying member is installed on the bottom plate. A mold mounting plate is placed on the conveying member. An induction block is installed on the mold mounting plate. A casting mounting seat is installed on the bottom plate. A stirring kettle is installed on the casting mounting seat. A stirring assembly is arranged on the stirring kettle. A stirring cover is installed at the upper end of the stirring kettle. A feeding hole is opened on the stirring cover. An outlet pipe is installed below the stirring kettle. A corrugated pipe is installed on the outlet pipe. An electric valve is installed at the end of the corrugated pipe. An electric telescopic rod is installed on the casting mounting seat. The end of the electric telescopic rod is connected to the electric valve through a joint connecting rod. A casting sensor is installed on the casting mounting seat. The casting sensor is electrically connected to both the electric telescopic rod and the electric valve.

[0006] As a preferred technical solution, when the mold mounting plate is placed, the water inlet direction of the mold faces the side of the casting mounting seat, and the height of the water inlet is the same as the height of the electric valve.

[0007] As a preferred technical solution, the stirring assembly includes a stirring hole, a stirring motor, a transmission main shaft, and bottom stirring blades;

[0008] A stirring hole is opened on the stirring cover. A stirring motor is installed on the stirring cover. The output shaft of the stirring motor penetrates the stirring cover. A transmission main shaft is installed on the output shaft of the stirring motor. Bottom stirring blades are installed at the end of the transmission main shaft.

[0009] As a preferred technical solution, the stirring assembly further includes a stirring drive gear, a stirring driven gear, a vertical reciprocating screw, and a vertical spoiler;

[0010] A stirring drive gear is installed on the output shaft of the stirring motor. Three stirring driven gears are rotatably installed on the stirring cover. The stirring drive gear meshes with all three stirring driven gears. A vertical reciprocating screw is installed on each of the three stirring driven gears, and a vertical spoiler is slidably installed on each of the three vertical reciprocating screws.

[0011] As a preferred technical solution, the stirring assembly further includes a mounting connecting rod, a middle mounting plate, a middle drive gear, a vertical mounting plate, a middle driven gear, a horizontal reciprocating screw, and a horizontal spoiler;

[0012] Three mounting connecting rods are evenly distributed on the inner wall of the stirring kettle. The three mounting connecting rods all point towards the center of the stirring kettle. The three mounting connecting rods are connected by a middle mounting plate. The transmission main shaft passes through the middle mounting plate. A middle drive gear is rotatably installed on the middle mounting plate. The middle drive gear is fixedly fitted with the transmission main shaft. A vertical mounting plate is installed on the mounting connecting rod. A middle driven gear is rotatably installed on the vertical mounting plate. The middle driven gear meshes with the middle drive gear. A horizontal reciprocating screw is installed on the middle driven gear, and a horizontal spoiler is slidably installed on the horizontal reciprocating screw.

[0013] As a preferred technical solution, the three vertical spoilers and the three horizontal spoilers are cross-mounted in the stirring kettle and do not interfere with each other. The installation position of the bottom stirring blade is lower than the bottom end of the vertical reciprocating screw of the horizontal spoiler.

[0014] As a preferred technical solution, the mold clamping assembly includes a mold clamping mounting base, a mold clamping motor, a mold clamping drive gear, a mold clamping driven gear, a mold clamping mounting plate, a mold clamping transmission rod, a sliding plate, a chute, a slider, a support rod, a limiting groove, a support block, a positioning block, a mold clamping positioning groove, an upper mold, a stacking cylinder, a stacking positioning groove, and a mold clamping sensor;

[0015] A mold clamping mounting base is installed on the bottom plate. A mold clamping motor is installed on the mold clamping mounting base. A mold clamping mounting plate is installed on the mold clamping mounting base. Two mold clamping driving gears are symmetrically installed on the mold clamping mounting plate. The two mold clamping driving gears are meshed with each other, and the output shaft of the mold clamping motor is connected to one of the mold clamping driving gears. Two mold clamping driven gears are symmetrically installed on the mold clamping mounting plate. The two mold clamping driven gears are respectively meshed with one mold clamping driving gear. The mold clamping driven gears penetrate through the mold clamping mounting plate, and a mold clamping transmission rod is installed at the end. A sliding plate is installed on the mold clamping transmission rod. A sliding groove is formed on the sliding plate. A slider is slidably installed in the sliding groove. A support rod is installed on the slider. Both ends of the support rod extend out of the slider. A limiting groove is formed on the mold clamping mounting plate. One end of the support rod is inserted into the limiting groove. The support rod and the limiting groove are in sliding fit. A stacking cylinder is installed on the mold clamping mounting base. A stacking positioning groove is formed on the stacking cylinder. A plurality of upper molds are slidably installed in the stacking cylinder. Two support blocks and two positioning blocks are symmetrically installed on the upper mold. The support blocks are located above the positioning blocks. The support blocks and the positioning blocks are both in sliding fit with the stacking positioning groove. A mold clamping sensor is installed on the pouring mounting base. The mold clamping sensor is electrically connected to the mold clamping motor.

[0016] As a preferred technical solution, the stacking assembly further includes a lower horizontal section, a side rising section, an upper horizontal section, a side inclined section, and a side descending section;

[0017] The limiting groove can be sequentially divided into a lower horizontal section, a side rising section, an upper horizontal section, a side inclined section, and a side descending section. The side inclined section and the side descending section are at the middle position of the mold clamping mounting base.

[0018] As a preferred technical solution, the mold clamping assembly further includes a lower mold, a heat conducting rod, a central axis hole, a heat insulating layer, an upper mold, an installation chamber, a battery pack, a nail-shaped rod, and a trigger;

[0019] A lower mold is installed on the mold mounting plate. A plurality of heat conducting rods are installed in the lower mold. A central axis hole is formed in the lower mold. The central axis hole is in contact with all the heat conducting rods. A heat insulating layer is installed outside the upper mold. The support blocks and the positioning blocks are installed outside the heat insulating layer. An installation chamber is formed in the upper mold. A battery pack is installed at the upper part of the installation chamber. A nail-shaped rod is slidably installed in the installation chamber. A trigger is installed at one end of the nail-shaped rod close to the battery pack. The diameter of the lower part of the nail-shaped rod is the same as the diameter of the central axis hole.

[0020] The preparation method of a polyurethane elastomer preparation device provided by the present application is as follows:

[0021] Step 1: Input the raw materials into the stirring kettle through the feeding hole. The raw materials are stirred by the stirring assembly to form a liquid that can be poured.

[0022] Step 2: The mold closing assembly assembles the mold on the mold mounting plate. The conveying part drives the mold mounting plate and the mold to move. When the pouring sensor detects the induction block, that is, when the mold reaches the pouring position, the conveying part stops operating.

[0023] Step 3: The pouring sensor controls the electric telescopic rod to extend regularly, driving the electric valve to extend into the water inlet of the mold. At the same time, the pouring sensor controls the electric valve to open, and the liquid material flows into the mold to complete the pouring.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. By detecting the position of the mold through the pouring sensor to control the pouring, on the one hand, the liquid material in the mold can be accurately poured, which can improve the pouring efficiency and quality. On the other hand, continuous and uninterrupted pouring work can be carried out to achieve automation, which can improve work efficiency and reduce the labor intensity of workers.

[0026] 2. The provided stirring assembly can stir the raw materials in the stirring kettle in all directions in the vertical and horizontal directions through the vertical spoiler, horizontal spoiler and bottom stirring blades. By destroying the fluid boundary layer and realizing the synergistic effect of three-dimensional turbulence, the stirring speed is accelerated and the mixing uniformity is improved at the same time.

[0027] 3. The mold closing assembly is provided, and the automatic mold closing is realized through the movement of the support rod, improving the mold closing accuracy and efficiency.

[0028] 4. By arranging heat conduction rods in the mold, the heat is transmitted to the periphery of the mold through the heat conduction rods to preheat the mold, providing a suitable temperature for the pouring and solidification, improving the pouring quality. At the same time, since the heating is only carried out after the mold is closed and the heat insulation layer exists, the waste of heat is effectively avoided, which can play an energy-saving role and reduce the production cost. Description of the Drawings

[0029] Figure 1 is the first perspective structural schematic diagram of the present invention;

[0030] Figure 2 is the second perspective structural schematic diagram of the present invention;

[0031] Figure 3 is the third perspective structural schematic diagram of the present invention;

[0032] Figure 4 is the first sectional structural schematic diagram of the present invention;

[0033] Figure 5 is the second sectional structural schematic diagram of the present invention;

[0034] Figure 6It is a third cross-sectional structural schematic diagram of the present invention;

[0035] Figure 7 For the present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0036] Figure 8 For the present invention Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0037] Figure 9 For the present invention Figure 5 Schematic diagram of the enlarged structure at C in the middle;

[0038] Figure 10 For the present invention Figure 6 Schematic diagram of the enlarged structure at D in the middle;

[0039] Figure 11 It is a structural schematic diagram of the lower mold of the present invention;

[0040] Figure 12 It is a structural schematic diagram of the mold clamping mounting plate of the present invention.

[0041] In the figure: 1. Base plate; 2. Clamping assembly; 3. Conveyor; 4. Mold mounting plate; 5. Sensor block; 6. Casting mounting seat; 7. Mixing kettle; 8. Mixing cover; 9. Feed hole; 10. Discharge pipe; 11. Electric valve; 12. Corrugated pipe; 13. Electric telescopic rod; 14. Joint connecting rod; 15. Casting sensor;

[0042] 16. Stirring assembly; 1601. Stirring hole; 1602. Stirring motor; 1603. Transmission main shaft; 1604. Bottom stirring blade; 1605. Stirring drive gear; 1606. Stirring driven gear; 1607. Vertical reciprocating screw; 1608. Vertical spoiler; 1609. Mounting connecting rod; 1610. Middle mounting plate; 1611. Middle driving gear; 1612. Vertical mounting plate; 1613. Middle driven gear; 1614. Horizontal reciprocating screw; 1615. Horizontal spoiler;

[0043] 2. Clamping die assembly; 201. Clamping die mounting base; 202. Clamping die motor; 203. Clamping die driving gear; 204. Clamping die driven gear; 205. Clamping die mounting plate; 206. Clamping die transmission rod; 207. Sliding plate; 208. Chute; 209. Slide block; 210. Support rod; 211. Limit groove; 212. Lower horizontal section; 213. Side rising section; 214. Upper horizontal section; 215. Side inclined section; 216. Side descending section; 217. Support block; 218. Positioning block; 219. Clamping die positioning groove; 220. Lower die; 221. Palletizing cylinder; 222. Palletizing positioning groove; 223. Heat conducting rod; 224. Central axis hole; 225. Heat insulation layer; 226. Upper die; 227. Installation chamber; 228. Battery pack; 229. Nail-shaped rod; 230. Trigger; 231. Clamping die sensor. Detailed implementation manner

[0044] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] Embodiment: As Figures 1-5 shown, the present invention provides a technical solution for a polyurethane elastomer preparation device and a preparation method, which is characterized in that: the polyurethane elastomer preparation device and the preparation method include a bottom plate 1, a clamping die assembly 2 is arranged on the bottom plate 1, a conveying member 3 is installed on the bottom plate 1, a mold mounting plate 4 is placed on the conveying member 3, an induction block 5 is installed on the mold mounting plate 4, a pouring mounting base 6 is installed on the bottom plate 1, a stirring kettle 7 is installed on the pouring mounting base 6, a stirring assembly 16 is arranged on the stirring kettle 7, a stirring cover 8 is installed at the upper end of the stirring kettle 7, a feeding hole 9 is opened on the stirring cover 8, a discharge pipe 10 is installed below the stirring kettle 7, a corrugated pipe 12 is installed on the discharge pipe 10, an electric valve 11 is installed at the end of the corrugated pipe 12, an electric telescopic rod 13 is installed on the pouring mounting base 6, the end of the electric telescopic rod 13 is connected to the electric valve 11 through a joint connecting rod 14, a pouring sensor 15 is installed on the pouring mounting base 6, and the pouring sensor 15 is electrically connected to both the electric telescopic rod 13 and the electric valve 11.

[0046] When the preparation of the base polyurethane elastomer is required, the raw materials are input into the stirring kettle 7 through the feed hole 9. The raw materials are stirred by the stirring component 16 to form a pourable liquid. At the same time, the mold assembly 2 assembles the mold on the mold mounting plate 4. The transfer piece 3 drives the mold mounting plate 4 and the mold to move. When the pouring sensor 15 detects the induction block 5, that is, when the mold reaches the pouring position, the pouring sensor 15 sends an electrical signal to control the transfer piece 3 to stop operating. At the same time, the pouring sensor 15 sends an electrical signal to control the electric telescopic rod 13 to extend regularly, driving the electric valve 11 to extend into the water inlet of the mold, and controlling the electric valve 11 to open. The liquid flows into the mold to complete the pouring. By detecting the position of the mold through the pouring sensor 15 to control the pouring, on the one hand, the liquid can be accurately poured into the mold, which can improve the pouring efficiency and quality. On the other hand, continuous pouring work can be carried out to achieve automation, which can improve work efficiency and reduce the labor intensity of workers.

[0047] When the mold mounting plate 4 is placed, the water inlet direction of the mold faces the pouring mounting seat 6, and the height of the water inlet is the same as the height of the electric valve 11.

[0048] The same height of the water inlet of the mold and the electric valve 11 can ensure that the valve accurately extends into the mold for pouring, ensuring the pouring quality.

[0049] The stirring component 16 includes a stirring hole 1601, a stirring motor 1602, a transmission main shaft 1603, and a bottom stirring blade 1604;

[0050] The stirring cover 8 is provided with a stirring hole 1601. The stirring cover 8 is installed with a stirring motor 1602. The output shaft of the stirring motor 1602 penetrates the stirring cover 8. The output shaft of the stirring motor 1602 is installed with a transmission main shaft 1603. The end of the transmission main shaft 1603 is installed with a bottom stirring blade 1604.

[0051] After the raw materials are input into the stirring kettle 7 from the feed hole 9, the stirring motor 1602 is started. The stirring motor 1602 drives the bottom stirring blade 1604 through the transmission main shaft 1603 to mix and stir the raw materials, facilitating subsequent pouring.

[0052] The stirring component 16 further includes a stirring drive gear 1605, a stirring driven gear 1606, a vertical reciprocating screw 1607, and a vertical spoiler 1608;

[0053] A stirring drive gear 1605 is installed on the output shaft of the stirring motor 1602, and three stirring driven gears 1606 are rotatably installed on the stirring cover 8. The stirring drive gear 1605 is meshed with the three stirring driven gears 1606, and vertical reciprocating screws 1607 are installed on the three vertical reciprocating screws 1607, and vertical spoilers 1608 are slidably installed on the three vertical reciprocating screws 1607.

[0054] When the stirring motor 1602 is running, it will drive the stirring drive gear 1605 to rotate. Due to the gear meshing action, the stirring drive gear 1605 drives the stirring driven gear 1606 to rotate synchronously. The stirring driven gear 1606 drives the vertical reciprocating screw 1607 to rotate synchronously, so that the vertical spoiler 1608 can reciprocate up and down. When the vertical spoiler 1608 reciprocates up and down, it can stir the raw materials in the vertical direction, so that the raw materials can be mixed more evenly.

[0055] The stirring assembly 16 also includes a mounting connecting rod 1609, a middle mounting plate 1610, a middle driving gear 1611, a vertical mounting plate 1612, a middle driven gear 1613, a horizontal reciprocating screw 1614 and a horizontal spoiler 1615;

[0056] Three mounting connecting rods 1609 are evenly distributed on the inner wall of the stirring kettle 7, and the three mounting connecting rods 1609 all point to the center direction of the stirring kettle 7. The three mounting connecting rods 1609 are connected through a middle mounting plate 1610, and the transmission main shaft 1603 passes through the middle mounting plate 1610. A middle driving gear 1611 is rotatably mounted on the middle mounting plate 1610, and the middle driving gear 1611 is fixedly matched with the transmission main shaft 1603. A vertical mounting plate 1612 is mounted on the mounting connecting rod 1609, and a middle driven gear 1613 is rotatably mounted on the vertical mounting plate 1612, and the middle driven gear 1613 is meshed with the middle driving gear 1611. A horizontal reciprocating screw 1614 is mounted on the middle driven gear 1613, and a horizontal spoiler 1615 is slidably mounted on the horizontal reciprocating screw 1614.

[0057] When the stirring motor 1602 drives the transmission main shaft 1603 to rotate, the transmission main shaft 1603 drives the middle driving gear 1611 to rotate synchronously. Due to the gear meshing action, the middle driving gear 1611 drives the horizontal reciprocating screw 1614 to rotate through the middle driven gear 1613. When the horizontal reciprocating screw 1614 rotates, the horizontal spoiler 1615 can reciprocate along the horizontal reciprocating screw 1614. When the horizontal spoiler 1615 reciprocates, it can stir the raw materials at different depths in the horizontal direction to make the raw materials mixed more evenly.

[0058] The three horizontal spoiler plates 1615 of the three vertical spoiler plates 1608 are cross-mounted in the stirring kettle 7 without interference, and the installation position of the bottom stirring blade 1604 is lower than the bottom end of the vertical reciprocating screw 1607 of the horizontal spoiler plate 1615.

[0059] Through the vertical spoiler plate 1608, the horizontal spoiler plate 1615 and the bottom stirring blade 1604, the raw materials in the stirring kettle 7 can be stirred in all directions in the vertical and horizontal directions. By destroying the fluid boundary layer and realizing the synergistic effect of three-dimensional turbulence, the stirring speed is accelerated while the mixing uniformity is improved.

[0060] The mold clamping assembly 2 includes a mold clamping mounting seat 201, a mold clamping motor 202, a mold clamping driving gear 203, a mold clamping driven gear 204, a mold clamping mounting plate 205, a mold clamping transmission rod 206, a sliding plate 207, a chute 208, a slider 209, a support rod 210, a limiting groove 211, a support block 217, a positioning block 218, a mold clamping positioning groove 219, an upper mold 226, a palletizing cylinder 221, a palletizing positioning groove 222 and a mold clamping sensor 231;

[0061] The mold clamping mounting seat 201 is installed on the bottom plate 1, the mold clamping motor 202 is installed on the mold clamping mounting seat 201, the mold clamping mounting plate 205 is installed on the mold clamping mounting seat 201, two mold clamping driving gears 203 are symmetrically installed on the mold clamping mounting plate 205, the two mold clamping driving gears 203 are meshed with each other, and the output shaft of the mold clamping motor 202 is connected to one of the mold clamping driving gears 203. Two mold clamping driven gears 204 are symmetrically installed on the mold clamping mounting plate 205, the two mold clamping driven gears 204 are respectively meshed with one mold clamping driving gear 203, the mold clamping driven gear 204 penetrates through the mold clamping mounting plate 205, and a mold clamping transmission rod 206 is installed at the end. A sliding plate 207 is installed on the mold clamping transmission rod 206, a chute 208 is formed on the sliding plate 207, a slider 209 is slidably installed in the chute 208, a support rod 210 is installed on the slider 209, both ends of the support rod 210 extend out of the slider 209, a limiting groove 211 is formed on the mold clamping mounting plate 205, one end of the support rod 210 is inserted into the limiting groove 211, and the support rod 210 and the limiting groove 211 are in sliding fit. A palletizing cylinder 221 is installed on the mold clamping mounting seat 201, a palletizing positioning groove 222 is formed on the palletizing cylinder 221, several upper molds 226 are slidably installed in the palletizing cylinder 221, two support blocks 217 and two positioning blocks 218 are symmetrically installed on the upper mold 226, the support block 217 is located above the positioning block 218, and both the support block 217 and the positioning block 218 are in sliding fit with the palletizing positioning groove 222. A mold clamping sensor 231 is installed on the pouring mounting seat 6, and the mold clamping sensor 231 is electrically connected to the mold clamping motor 202.

[0062] When the mold clamping sensor 231 detects the induction block 5, the mold clamping sensor 231 will send an electrical signal to control the conveyor 3 to stop operating, and control the mold clamping motor 202 to rotate. The mold clamping motor 202 drives the mold clamping drive gear 203 to rotate. Under the action of gear meshing, the mold clamping drive gear 203 drives the mold clamping driven gear 204 to rotate. When the mold clamping driven gear 204 rotates, it drives the slider 209 and the support rod 210 to rotate synchronously through the mold clamping transmission rod 206. When the support rod 210 rotates, it can cooperate with the upper mold 226 and the lower mold 220 under the limitation of the limit groove 211 to complete mold clamping. Due to the existence of the palletizing limit groove 211, the upper mold 226 can be accurately matched with the lower mold 220, further improving the pouring quality.

[0063] The mold clamping assembly 2 further includes a lower horizontal section 212, a side rising section 213, an upper horizontal section 214, a side inclined section 215 and a side descending section 216;

[0064] The limit groove 211 can be sequentially divided into a lower horizontal section 212, a side rising section 213, an upper horizontal section 214, a side inclined section 215 and a side descending section 216. The side inclined section 215 and the side descending section 216 are at the middle position of the mold clamping mounting seat 201.

[0065] In the initial state, the support rod 210 is located at the lowest point of the side inclined section 215. At this time, the support rod 210 prevents the upper mold 226 in the palletizing cylinder 221 from falling through the support block 217. When mold clamping is required, the support rod 210 moves downward along the side descending section 216, so that the upper mold 226 can move downward for mold clamping. After mold clamping, the support rod 210 moves to the initial position along the lower horizontal section 212, the side rising section 213, the upper horizontal section 214 and the side inclined section 215, and continues to support the next upper mold 226, facilitating the movement of the mold after mold clamping to the next process, realizing automatic mold clamping, and improving the mold clamping accuracy and mold clamping efficiency.

[0066] The mold clamping assembly 2 further includes a lower mold 220, a heat conducting rod 223, a central shaft hole 224, a heat insulating layer 225, an upper mold 226, an installation chamber 227, a battery pack 228, a nail-shaped rod 229 and a trigger 230;

[0067] A lower mold 220 is installed on the mold mounting plate 4. A number of heat conducting rods 223 are installed in the lower mold 220. The lower mold 220 is provided with a central axis hole 224 which is in contact with all the heat conducting rods 223. An insulating layer 225 is installed outside the upper mold 226. The support block 217 and the positioning block 218 are installed outside the insulating layer 225. An installation chamber 227 is formed in the upper mold 226. A battery pack 228 is installed at the upper part of the installation chamber 227. A nail-shaped rod 229 is slidably installed in the installation chamber 227. A trigger 230 is installed at one end of the nail-shaped rod 229 close to the battery pack 228. The diameter of the lower part of the nail-shaped rod 229 is the same as that of the central axis hole 224.

[0068] When the upper mold 226 and the lower mold 220 are not closed, the nail-shaped rod 229 is attached to the lower surface of the installation chamber 227 under the action of gravity. When the upper mold 226 and the lower mold 220 are closed, under the thrust of the lower end of the central axis hole 224, the nail-shaped rod 229 moves upward to make the trigger 230 contact the battery pack 228. The nail-shaped rod 229 generates heat, and the heat is transmitted to the surrounding of the mold through the heat conducting rods 223 to preheat the mold, providing a suitable temperature for pouring and solidification, improving the pouring quality. At the same time, since heating only occurs after closing the mold and due to the existence of the insulating layer 225, the waste of heat is effectively avoided, which can play an energy-saving role and reduce production costs.

[0069] The preparation method of a polyurethane elastomer preparation device provided by the present application is as follows:

[0070] Step 1: The raw materials are input into the stirring kettle 7 through the feed hole 9, and the raw materials are stirred by the stirring assembly 16 to form a pourable liquid.

[0071] Step 2: The mold assembly 2 assembles the mold on the mold mounting plate 4, and the conveyor 3 drives the mold mounting plate 4 and the mold to move. When the pouring sensor 15 detects the induction block 5, that is, when the mold reaches the pouring position, the conveyor stops running.

[0072] Step 3: The pouring sensor 15 controls the electric telescopic rod 13 to extend regularly, driving the electric valve 11 to extend into the water inlet of the mold. At the same time, the pouring sensor 15 controls the electric valve 11 to open, and the liquid flows into the mold to complete the pouring.

[0073] The working principle of the present invention:

[0074] When the preparation of the base polyurethane elastomer is required, the raw materials are input into the stirring kettle 7 through the feed hole 9. The raw materials are stirred by the stirring assembly 16 to form a casting liquid. At the same time, the mold assembly 2 assembles the mold on the mold mounting plate 4. The transfer member 3 drives the mold mounting plate 4 and the mold to move. When the pouring sensor 15 detects the induction block 5, that is, when the mold reaches the pouring position, the pouring sensor 15 sends an electrical signal to control the transfer member 3 to stop operating. At the same time, the pouring sensor 15 sends an electrical signal to control the electric telescopic rod 13 to extend regularly, driving the electric valve 11 to extend into the water inlet of the mold, and controlling the electric valve 11 to open. The casting liquid flows into the mold to complete the casting. By detecting the position of the mold through the pouring sensor 15 to control the casting, on the one hand, the casting liquid in the mold can be accurately poured, which can improve the pouring efficiency and quality. On the other hand, continuous and uninterrupted pouring work can be carried out to achieve automation, which can improve work efficiency and reduce the labor intensity of workers.

[0075] After the raw materials are input into the stirring kettle 7 from the feed hole 9, the stirring motor 1602 is started. The stirring motor 1602 drives the bottom stirring blade 1604 to mix and stir the raw materials through the transmission main shaft 1603, which is convenient for subsequent casting.

[0076] When the stirring motor 1602 operates, it drives the stirring drive gear 1605 to rotate. Due to the gear meshing effect, the stirring drive gear 1605 drives the stirring driven gear 1606 to rotate synchronously. The stirring driven gear 1606 drives the vertical reciprocating screw 1607 to rotate synchronously, so that the vertical baffle 1608 moves up and down reciprocally. When the vertical baffle 1608 moves up and down reciprocally, it can stir the raw materials in the vertical direction, making the raw materials more evenly mixed.

[0077] When the stirring motor 1602 drives the transmission main shaft 1603 to rotate, the transmission main shaft 1603 drives the middle drive gear 1611 to rotate synchronously. Due to the gear meshing effect, the middle drive gear 1611 drives the horizontal reciprocating screw 1614 to rotate through the middle driven gear 1613. When the horizontal reciprocating screw 1614 rotates, the horizontal baffle 1615 can reciprocate along the horizontal reciprocating screw 1614. When the horizontal baffle 1615 reciprocates, it can stir the raw materials at different depths in the horizontal direction, making the raw materials more evenly mixed.

[0078] Through the vertical baffle 1608, the horizontal baffle 1615 and the bottom stirring blade 1604, the raw materials in the stirring kettle 7 can be stirred in all directions in the vertical and horizontal directions. By destroying the fluid boundary layer and realizing the synergistic effect of three-dimensional turbulence, the stirring speed is accelerated while the mixing uniformity is improved.

[0079] When the mold clamping sensor 231 detects the induction block 5, the mold clamping sensor 231 will send an electrical signal to control the conveyor 3 to stop operating, and control the mold clamping motor 202 to rotate. The mold clamping motor 202 drives the mold clamping drive gear 203 to rotate. Under the action of gear meshing, the mold clamping drive gear 203 drives the mold clamping driven gear 204 to rotate. When the mold clamping driven gear 204 rotates, it drives the slider 209 and the support rod 210 to rotate synchronously through the mold clamping transmission rod 206. When the support rod 210 rotates, it can cooperate with the upper mold 226 and the lower mold 220 under the limitation of the limit groove 211 to complete mold clamping. Due to the existence of the palletizing limit groove 211, the upper mold 226 can be accurately matched with the lower mold 220, further improving the pouring quality.

[0080] In the initial state, the support rod 210 is located at the lowest point of the side inclined section 215. At this time, the support rod 210 prevents the upper mold 226 in the palletizing cylinder 221 from falling through the support block 217. When mold clamping is required, the support rod 210 moves downward along the side descending section 216, so that the upper mold 226 can move downward for mold clamping. After mold clamping, the support rod 210 moves along the lower horizontal section 212, the side ascending section 213, the upper horizontal section 214 and the side inclined section 215 to the initial position, and continues to support the next upper mold 226, facilitating the movement of the mold after mold clamping to the next process, realizing automatic mold clamping, and improving the mold clamping accuracy and efficiency.

[0081] When the upper mold 226 and the lower mold 220 are not clamped, the nail-shaped rod 229 fits against the lower surface of the installation chamber 227 under the action of gravity. When the upper mold 226 and the lower mold 220 are clamped, under the thrust at the lower end of the central axis hole 224, the nail-shaped rod 229 moves upward to make the trigger 230 contact the battery pack 228. The nail-shaped rod 229 generates heat, and the heat is transmitted to the surrounding of the mold through the heat conduction rod 223 to preheat the mold, providing a suitable temperature for pouring solidification, improving the pouring quality. At the same time, since heating only occurs after mold clamping and the existence of the heat insulation layer 225, the waste of heat is effectively avoided, which can play an energy-saving role and reduce production costs.

[0082] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A polyurethane elastomer preparation device and preparation method, characterized in that: The polyurethane elastomer preparation device and preparation method comprises a base plate (1), a mold clamping assembly (2) is arranged on the base plate (1), a conveying member (3) is installed on the base plate (1), a mold mounting plate (4) is placed on the conveying member (3), a sensing block (5) is installed on the mold mounting plate (4), a casting mounting seat (6) is installed on the base plate (1), a stirring kettle (7) is installed on the casting mounting seat (6), a stirring assembly (16) is arranged on the stirring kettle (7), a stirring cover (8) is installed on the upper end of the stirring kettle (7), and a stirring cover (8) is installed on the stirring cover (8). A feeding hole (9) is provided, a discharge pipe (10) is installed below the stirring kettle (7), a corrugated tube (12) is installed on the discharge pipe (10), an electric valve (11) is installed at the end of the corrugated tube (12), an electric telescopic rod (13) is installed on the casting mounting seat (6), the end of the electric telescopic rod (13) is connected to the electric valve (11) via a joint connecting rod (14), a casting sensor (15) is installed on the casting mounting seat (6), and the casting sensor (15) is electrically connected to the electric telescopic rod (13) and the electric valve (11).

2. The device and method for preparing a polyurethane elastomer according to claim 1, characterized in that: When the mold mounting plate (4) is placed, the water outlet direction of the mold faces one side of the casting mounting seat (6), and the height of the water outlet is consistent with the height of the electric valve (11).

3. The device and method for preparing a polyurethane elastomer according to claim 1, characterized in that: The stirring assembly (16) comprises a stirring hole (1601), a stirring motor (1602), a transmission main shaft (1603) and a bottom stirring blade (1604); The stirring cover (8) is provided with a stirring hole (1601), the stirring cover (8) is provided with a stirring motor (1602), the output shaft of the stirring motor (1602) passes through the stirring cover (8), the output shaft of the stirring motor (1602) is provided with a transmission main shaft (1603), and the end of the transmission main shaft (1603) is provided with a bottom stirring blade (1604).

4. The device and method for preparing a polyurethane elastomer according to claim 3, characterized in that: The stirring assembly (16) further comprises a stirring driving gear (1605), a stirring driven gear (1606), a vertical reciprocating screw (1607) and a vertical spoiler (1608); A stirring drive gear (1605) is installed on the output shaft of the stirring motor (1602), and three stirring driven gears (1606) are rotatably installed on the stirring cover (8). The stirring drive gear (1605) is meshed with the three stirring driven gears (1606), and vertical reciprocating screws (1607) are installed on the three stirring driven gears (1606), and vertical spoilers (1608) are slidably installed on the three vertical reciprocating screws (1607).

5. The device and method for preparing a polyurethane elastomer according to claim 4, characterized in that: The stirring assembly (16) further comprises a mounting connecting rod (1609), a middle mounting plate (1610), a middle driving gear (1611), a vertical mounting plate (1612), a middle driven gear (1613), a horizontal reciprocating screw (1614) and a horizontal spoiler (1615); Three mounting connecting rods (1609) are evenly distributed on the inner wall of the stirring kettle (7), and the three mounting connecting rods (1609) all point to the center of the stirring kettle (7). The three mounting connecting rods (1609) are connected via a middle mounting plate (1610), and the transmission main shaft (1603) passes through the middle mounting plate (1610). A middle driving gear (1611) is rotatably mounted on the middle mounting plate (1610), and the middle driving gear (1611) is rotatably mounted on the transmission main shaft. (1603) is a fixed fit, a vertical mounting plate (1612) is mounted on the mounting connecting rod (1609), a middle driven gear (1613) is rotatably mounted on the vertical mounting plate (1612), the middle driven gear (1613) is meshed with the middle driving gear (1611), a horizontal reciprocating screw (1614) is mounted on the middle driven gear (1613), and a horizontal spoiler (1615) is slidably mounted on the horizontal reciprocating screw (1614).

6. The device and method for preparing a polyurethane elastomer according to claim 5, characterized in that: The three horizontal spoilers (1615) of the three vertical spoilers (1608) are cross-mounted in the stirring tank (7) without interfering with each other, and the installation position of the bottom stirring blade (1604) is lower than the bottom end of the vertical reciprocating screw (1607) of the horizontal spoiler (1615).

7. The device and method for preparing a polyurethane elastomer according to claim 2, characterized in that: The mold clamping assembly (2) comprises a mold clamping mounting seat (201), a mold clamping motor (202), a mold clamping driving gear (203), a mold clamping driven gear (204), a mold clamping mounting plate (205), a mold clamping transmission rod (206), a sliding plate (207), a sliding groove (208), a slider (209), a support rod (210), a limiting groove (211), a support block (217), a positioning block (218), a mold clamping positioning groove (219), an upper mold (226), a stacking tube (221), a stacking positioning groove (222) and a mold clamping sensor (231); A mold clamping mounting seat (201) is mounted on the bottom plate (1), a mold clamping motor (202) is mounted on the mold clamping mounting seat (201), a mold clamping mounting plate (205) is mounted on the mold clamping mounting seat (201), two mold clamping drive gears (203) are symmetrically mounted on the mold clamping mounting plate (205), the two mold clamping drive gears (203) are meshed, and an output shaft of the mold clamping motor (202) is connected to one of the mold clamping drive gears (203), and the mold clamping mounting plate (205) is Two mold clamping driven gears (204) are symmetrically mounted on the mold clamping plate (205), and the two mold clamping driven gears (204) are respectively meshed with a mold clamping driving gear (203). The mold clamping driven gears (204) penetrate the mold clamping mounting plate (205), and a mold clamping transmission rod (206) is mounted on the end thereof. A sliding plate (207) is mounted on the mold clamping transmission rod (206), and a sliding groove (208) is provided on the sliding plate (207). A slider (209) is slidably mounted in the sliding groove (208). A support rod (210) is installed on the mold mounting seat (209), and both ends of the support rod (210) extend out of the slider (209). A limiting groove (211) is provided on the mold mounting plate (205), and one end of the support rod (210) is inserted into the limiting groove (211). The support rod (210) and the limiting groove (211) are in sliding cooperation. A stacking tube (221) is installed on the mold mounting seat (201), and a stacking positioning groove (222) is provided on the stacking tube (221). A plurality of upper molds (226) are slidably installed in (221), and two support blocks (217) and two positioning blocks (218) are symmetrically installed on the upper mold (226), and the support blocks (217) are located above the positioning blocks (218), and the support blocks (217) and the positioning blocks (218) are both slidably matched with the stacking positioning groove (222), and a mold closing sensor (231) is installed on the casting mounting seat (6), and the mold closing sensor (231) is electrically connected to the mold closing motor (202).

8. The device and method for preparing a polyurethane elastomer according to claim 7, characterized in that: The clamping assembly (2) further comprises a lower horizontal section (212), a side ascending section (213), an upper horizontal section (214), a side inclined section (215) and a side descending section (216); The limiting groove (211) can be divided into a lower horizontal section (212), a side ascending section (213), an upper horizontal section (214), a side inclined section (215) and a side descending section (216) in sequence, and the side inclined section (215) and the side descending section (216) are located in the middle of the mold mounting seat (201).

9. The device and method for preparing a polyurethane elastomer according to claim 8, characterized in that: The clamping assembly (2) further comprises a lower mold (220), a heat-conducting rod (223), a central axis hole (224), a heat-insulating layer (225), an upper mold (226), a mounting chamber (227), a battery pack (228), a nail-shaped rod (229) and a trigger (230); A lower mold (220) is installed on the mold installation plate (4), a plurality of heat-conducting rods (223) are installed in the lower mold (220), a central axis hole (224) is provided in the lower mold (220), the central axis hole (224) is in contact with the plurality of heat-conducting rods (223), a heat-insulating layer (225) is installed outside the upper mold (226), the support block (217) and the positioning block (218) are installed outside the heat-insulating layer (225), an installation chamber (227) is provided in the upper mold (226), a battery pack (228) is installed on the upper part of the installation chamber (227), a nail-shaped rod (229) is slidably installed in the installation chamber (227), a trigger (230) is installed at one end of the nail-shaped rod (229) close to the battery pack (228), and the diameter of the lower part of the nail-shaped rod (229) is the same as the diameter of the central axis hole (224).

10. The method for preparing a polyurethane elastomer according to any one of claims 1 to 9, comprising the steps of: Step 1: The raw materials are fed into the stirring kettle (7) through the feed hole (9), and the raw materials are stirred by the stirring component (16) to form a liquid material that can be cast. Step 2: The mold clamping assembly (2) assembles the mold on the mold mounting plate (4), and the conveying member (3) drives the mold mounting plate (4) and the mold to move. When the pouring sensor (15) detects the sensing block (5), that is, the mold reaches the pouring position, the conveying member (3) stops running. Step 3: The pouring sensor (15) controls the electric telescopic rod (13) to extend at a fixed time, driving the electric valve (11) to extend into the water inlet of the mold. At the same time, the pouring sensor (15) controls the electric valve (11) to open, and the material liquid flows into the mold, completing the pouring.

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