A raw material mixer for producing PVC foam board and use method thereof

Abstract

The present invention relates to the field of PVC foam board raw material mixing, specifically a raw material mixer for PVC foam board production and a method of use, comprising a mixing tank, the top of the mixing tank is fixedly connected with a lubricating liquid cylinder, the lower part of the lubricating liquid cylinder extends to the inside of the mixing tank and is rotatably connected with an infusion ring, and the bottom of the lubricating liquid cylinder is fixedly connected with an adjustment cover. This raw material mixer for PVC foam board production is composed of an infusion mechanism and a refilling mechanism; when the fluidity of the raw materials stirred inside the mixing tank is insufficient, under the action of the refilling mechanism, the lubricating liquid inside the guide ring is automatically drawn into the piston tube and then sprayed out from the nozzle position, at this time, under the action of the adjustment cover and the corrugated groove, the stirring blade moves back and forth up and down inside the mixing tank, and the sprayed lubricating liquid is evenly dispersed inside the mixing tank, and the lubricant can be automatically replenished by the state of the raw material fluidity, thereby improving the quality of PVC foam board raw material mixing.

Description

Technical Field

[0001] The invention relates to the field of PVC foam board raw material mixing, in particular to a raw material mixer for producing PVC foam boards and a use method thereof. Background Art

[0002] In the production process of PVC foam board, materials such as resin, foaming agent, plasticizer, stabilizer, lubricant and filler are mixed by a mixer to form a mixture, and then processed by an extruder.

[0003] The existing patent (Announcement No.: CN112140386A) discloses a PVC foam board production process multiple raw materials automatic weighing and mixing system and equipment, including a first box, a weighing mechanism, a dust cleaning mechanism and a dehumidification mechanism. In the process of implementing the solution, the inventor found that the following problems in the prior art have not been well solved: 1. Since lubricants need to be added during the mixing process of PVC foam board raw materials to prevent the materials from sticking, if too little lubricant is added, it may cause the materials to stick to the wall during mixing, or the fluidity is poor during the later extrusion, affecting the foaming. It is difficult for the device to automatically detect the fluidity of the materials during the raw material mixing process and add lubricants, which affects the mixing quality of the PVC foam board raw materials. Summary of the invention

[0004] The purpose of the present invention is to provide a raw material mixer for the production of PVC foam boards and a method of use, so as to solve the problems raised in the above background technology: 1. It is difficult for some existing PVC foam board raw material mixing devices to automatically add lubricants according to the material fluidity during use. When too little lubricant is added, the foaming quality will be affected. To achieve the above purpose, the present invention provides the following technical solutions: A raw material mixer for the production of PVC foam boards, comprising:

[0005] A mixing tank, wherein the top of the mixing tank is fixedly connected to a lubricating liquid cylinder, the lower part of the lubricating liquid cylinder extends to the inside of the mixing tank and is rotatably connected to an infusion ring, the bottom of the lubricating liquid cylinder is fixedly connected to an adjustment cover, the inside of the adjustment cover is rotatably connected to a shaft rod, the bottom of the shaft rod passes through the mixing tank and is fixedly connected to a transmission motor, and the surface of the transmission motor is fixedly connected to the bottom surface of the mixing tank;

[0006] Also includes:

[0007] An infusion mechanism, wherein the infusion mechanism is movably connected between the inner top surface of the mixing tank and the surface of the lubricating liquid cylinder, the top of the infusion ring is fixedly connected to the surface of the infusion mechanism, and the infusion mechanism is driven by the rotating infusion ring to transport the lubricating liquid inside the lubricating liquid cylinder at regular intervals;

[0008] The lower part of the shaft is equidistantly and movably connected to two support rings, and a fluid replenishing mechanism that cooperates with the infusion mechanism is movably connected between the interior of the two support rings and the adjustment cover. After the infusion mechanism transports the lubricating liquid into the fluid replenishing mechanism, the fluid replenishing mechanism can replenish new lubricating liquid according to the fluidity conditions of the raw materials.

[0009] Preferably, the infusion mechanism comprises a single-toothed ring, the single-toothed ring is rotatably connected to the lower part of the lubricating liquid cylinder, the bottom of the single-toothed ring is fixedly connected to the top of the infusion ring, the front and rear sides of the inner top surface of the mixing tank are symmetrically slidably connected with adjustment racks, the two adjustment racks are respectively arranged at the two sides of the single-toothed ring, a limiting groove is provided on the side of the adjustment rack away from the single-toothed ring, and an adjustment pressure rod is fixedly connected to the end of the adjustment rack away from the single-toothed ring;

[0010] The lower part of the lubricating liquid cylinder is rotatably connected with a circular gear ring, and the circular gear ring is fixedly connected to the top of the single-tooth gear ring. The left and right sides of the inner top surface of the mixing tank are symmetrically slidably connected with L-shaped toothed plates, and the two L-shaped toothed plates are respectively engaged with the two sides of the circular gear ring, and the two L-shaped toothed plates correspond to the two adjusting racks one by one, and one end of the L-shaped toothed plate is fixedly connected with a spring limit block matched with the limit groove;

[0011] The inner top surface of the mixing tank is symmetrically fixedly connected with a spring pull rod, a pressure ring is fixedly connected between the bottoms of the two spring pull rods, the pressure ring is movably sleeved at the lower position of the lubricating liquid cylinder, and a pressure block is symmetrically fixedly connected to the top of the pressure ring, and the two adjusting pressure rods correspond to the two pressure blocks one by one;

[0012] The surface of the infusion ring is symmetrically fixedly connected with an L-shaped infusion tube that cooperates with the fluid replenishment mechanism, the middle of the L-shaped infusion tube is fixedly connected with a sealing sleeve, the bottom of the sealing sleeve is overlapped on the top of the adjustment cover, the inside of the sealing sleeve is vertically slidably connected with a sealing plate that cooperates with the L-shaped infusion tube, and the top of the sealing plate is fixedly connected with a spring push rod that cooperates with the pressure ring.

[0013] Preferably, the spring limit block is composed of a spring rod and a limit block, the limit block is fixedly connected to the movable end of the spring rod, and one end of the limit block close to the limit groove is chamfered.

[0014] Preferably, the spring push rod consists of a push rod and a compression spring, the push rod is movably inserted into the top of the sealing sleeve, the bottom of the push rod is fixedly connected to the top of the sealing plate, the compression spring is movably sleeved on the upper part of the push rod, and the bottom of the compression spring is fixedly connected to the top of the sealing sleeve.

[0015] Preferably, the fluid replenishment mechanism comprises a corrugated groove, the corrugated groove is provided on the surface of the regulating cover, both sides of the corrugated groove are slidably connected with regulating tubes, the lower ends of the two L-shaped infusion tubes are respectively movably plugged into the upper parts of the two regulating tubes, the insides of the two support rings are fixedly connected with guide rings, the two guide rings are fixedly connected with a guide tube, and the lower ends of the two regulating tubes are fixedly connected to the inside of the upper guide ring;

[0016] The upper part of the support ring is rotatably connected to a blade ring, the outer wall of the blade ring is symmetrically fixedly connected to a stirring blade, the surface of the support ring is symmetrically fixedly connected to a spring pressure rod, the movable end of the spring pressure rod is fixedly connected to the inner wall of the blade ring, and the middle part of the support ring is symmetrically fixedly connected to a protrusion;

[0017] A through groove is provided inside the stirring blade, a piston tube is fixedly connected inside the through groove, a T-shaped piston plate is slidably connected inside the piston tube, and one end of the T-shaped piston plate away from the piston tube is movably connected to the inner wall of the through groove;

[0018] A gear rod is rotatably connected to one side of the inner wall of the through groove, an extrusion rod matching with the protrusion is movably inserted between the inner wall of the through groove and the blade ring, one end of the extrusion rod is fixedly connected to an L-shaped rack, the top of the L-shaped rack is meshed with the bottom of the gear rod, the end of the gear rod away from the L-shaped rack is rotatably connected to a transmission tube, one end of the transmission tube is movably connected to the inner wall of the through groove, twenty-four grooves are equidistantly provided on the surface of the transmission tube along the circumference, a tooth block matching with the T-shaped piston plate is slidably connected inside the groove, one end of the tooth block is fixedly connected to a ball head rod, the ball head rod is movably inserted inside the transmission tube, and the end of the gear rod close to the inner wall of the transmission tube is fixedly connected to a toothed disk matching with the tooth block;

[0019] The surface of the guide ring is symmetrically fixedly connected with a delivery pipe, and the two delivery pipes correspond to the two stirring blades one by one. One end of the delivery pipe extends to the inside of the stirring blade and is fixedly connected to the end of the corresponding piston tube. The end of the piston tube is fixedly connected with a discharge pipe, and the surface of the discharge pipe is fixedly connected with a nozzle, and the nozzle is fixedly connected to the surface of the stirring blade.

[0020] Preferably, the spring pressure rod is set as an arc-shaped spring rod, the movable end of the spring pressure rod is fixedly connected to a cushion block, the side wall of the cushion block is fixedly connected to the inner wall of the blade ring, and the spring pressure rod is arranged below the protrusion;

[0021] A pushing spring is movably connected between the inner wall of the blade ring and the surface of the extrusion rod.

[0022] Preferably, the toothed disc surface is provided with twenty-four teeth, the twenty-four teeth correspond to the twenty-four tooth blocks one by one, the surface of the teeth is provided with an inclined block matched with the ball head rod, and a short spring is movably connected between the surface of the ball head rod and the inner wall of the transmission tube;

[0023] A damping bearing is fixedly connected between one end of the transmission pipe and the inner wall of the through groove.

[0024] Preferably, the inner wall of the through groove is symmetrically fixedly connected with guide rods, the two guide rods are movably inserted into the interior of the T-shaped piston plate, the surface of the guide rods is movably sleeved with a return spring, and the bottom of the T-shaped piston plate is set as a tooth surface matching the tooth block.

[0025] A method for using a raw material mixer for producing PVC foam boards comprises the following steps:

[0026] S1. When in use, after the mixing raw materials are placed in the mixing tank, the transmission motor is started to rotate synchronously with the shaft, the support ring, the blade ring and the mixing blade to mix the mixing raw materials in the mixing tank. At the same time, the support ring slides along the corrugated groove track on the surface of the adjustment cover with the adjustment tube, so that the adjustment tube can move up and down on the surface of the shaft with the two support rings at the same time;

[0027] S2. At the same time, during the synchronous rotation of the support ring with the adjusting tube, the L-shaped infusion tube and the infusion ring, the infusion ring rotates with the single-toothed ring and the spherical ring, and then the spherical ring engages with the adjacent L-shaped toothed plate, and the L-shaped toothed plate with the spring limit block is inserted into the limit groove of the adjacent adjusting rack side wall to limit the adjusting rack from resetting and moving. During the rotation of the single-toothed ring, it will periodically engage with the corresponding adjusting rack, so that the adjusting rack moves slowly on the top of the mixing tank. After the stirring blade stirs the raw materials to a fixed period, the adjusting rack with the corresponding adjusting pressure rod presses against the top of the corresponding pressure block, so that the pressure block moves downward with the pressure ring. At this time, the pressure ring presses against the top of the two spring push rods, so that the spring push rod moves downward with the sealing plate and releases the seal of the L-shaped infusion tube, so that the lubricating fluid inside the lubricating fluid cylinder flows from the infusion ring position into the L-shaped infusion tube, the adjusting tube and the guide ring.

[0028] S3. When the fluidity of the raw materials inside the mixing tank is the same as the set value, under the action of the spring pressure rod, the support ring can rotate synchronously with the blade ring and the stirring blade. When the fluidity of the raw materials inside the mixing tank is lower than the set value, lubricating fluid needs to be added. At this time, the resistance of the stirring blade increases, causing the stirring blade to rotate with the blade ring and the support ring. Then the extrusion rod on the blade ring contacts the convex block inside the support ring, so that the extrusion rod is compressed and engages with the L-shaped rack and the gear rod for transmission. At this time, the gear rod squeezes the end of the ball head rod with the toothed disk at the inner ring of the transmission tube, so that the ball head rod moves out of the groove with the tooth block. And mesh with the bottom of the T-type piston plate, at this time, the transmission tube rotated with the gear rod meshes with the T-type piston plate through the tooth block, so that the piston plate moves inside the piston tube, and the lubricating liquid inside the guide ring is pumped into the piston tube through the infusion tube on the piston tube. When the blade ring and the support ring stop rotating out of position, the L-shaped rack and the gear rod stop meshing and transmitting. At this time, the ball head rod returns to the inside of the groove with the tooth block and releases the meshing with the T-type piston plate. Then the T-type piston plate is reset to discharge the extracted lubricating liquid from the discharge pipe position, and the lubricating liquid sprayed from the nozzle position is dispersed in the mixture along with the ups and downs of the stirring blades.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] In the present invention, through the coordinated use of components such as the mixing tank, the regulating cover and the liquid replenishing mechanism, when the fluidity of the raw materials stirred inside the mixing tank is insufficient, under the action of the liquid replenishing mechanism, the lubricating liquid inside the guide ring is automatically drawn into the piston tube and then sprayed out from the nozzle position. At this time, under the action of the regulating cover and the corrugated groove, the stirring blade moves back and forth up and down inside the mixing tank, and the sprayed lubricating liquid is evenly dispersed inside the mixing tank. The lubricant can be automatically replenished according to the state of the raw material fluidity, thereby improving the quality of the PVC foam board raw material mixing.

[0031] In the present invention, by using the components such as the protrusion, the extrusion rod and the T-shaped piston plate in coordination, due to the structural effect of the protrusion, the distance of the offset rotation between the blade ring and the support ring is different according to the different fluidity of the raw material stirring. At this time, the contact position of the protrusion and the extrusion rod is different, so that the extrusion rod and the gear rod cooperate to drive the transmission tube and the T-shaped piston plate to move in engagement, thereby automatically adjusting the amount of the sprayed lubricant according to the fluidity during the raw material stirring process.

[0032] In the present invention, by using the mixing tank, the infusion mechanism and the shaft rod in coordination, during the initial stirring process of the raw materials with the shaft rod, under the action of the infusion mechanism, the lubricating liquid inside the lubricating liquid cylinder will not be delivered to the inside of the guide ring in time. After the shaft rod rotates with the stirring blades for a certain period, the infusion mechanism is opened at a fixed time and the lubricating liquid is delivered to the inside of the guide ring, so as to avoid excessive addition of lubricating liquid and affect the production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A side view of the mixing tank and the lubricating fluid cylinder of the present invention;

[0034] Figure 2 A side cross-sectional view showing the positions of the mixing tank and the lubricating fluid cylinder of the present invention;

[0035] Figure 3 It is a side sectional view of the mixing tank and the local position of the adjusting rack of the present invention;

[0036] Figure 4 It is a side view of a single-tooth gear ring and a round gear ring of the present invention;

[0037] Figure 5 A top view of the partial position of the adjustment rack and the L-shaped tooth plate of the present invention;

[0038] Figure 6 A side cross-sectional view of the position of the adjustment cover and the shaft rod of the present invention;

[0039] Figure 7 For the present invention Figure 6 A magnified view of the structure at center A;

[0040] Figure 8 It is a cross-sectional view of a blade ring and a local position of a stirring blade of the present invention;

[0041] Fig. 9 For the present invention Figure 8 A magnified view of the structure at B in the middle;

[0042] Fig.10 It is a top cross-sectional view of a local position of a blade ring and a support ring of the present invention;

[0043] Fig.11 It is a top cross-sectional view of the local position of the support ring and the guide ring of the present invention;

[0044] Fig.12 It is a side cross-sectional view of a local position of the transmission tube and the gear rod of the present invention;

[0045] Fig.13 It is a top cross-sectional view of the local position of the projection and the extrusion rod of the present invention;

[0046] Fig.14 It is a side view of the transmission pipe and the local position of the T-shaped piston plate of the present invention.

[0047] In the figure: 1, mixing tank; 2, lubricating liquid cylinder; 3, infusion ring; 4, adjustment cover; 5, shaft; 6, transmission motor; 7, infusion mechanism; 701, single-tooth gear ring; 702, adjustment rack; 703, limit groove; 704, adjustment pressure rod; 705, round gear ring; 706, L-shaped tooth plate; 707, spring limit block; 708, spring pull rod; 709, pressure ring; 710, pressure block; 711, L-shaped infusion tube; 712, sealing sleeve; 713, sealing plate; 714, spring push rod; 8, support ring; 9, rehydration Mechanism; 901, corrugated groove; 902, regulating tube; 903, guide ring; 904, guide tube; 905, blade ring; 906, stirring blade; 907, spring pressure rod; 908, bump; 909, through groove; 910, piston tube; 911, T-type piston plate; 912, gear rod; 913, extrusion rod; 914, L-type rack; 915, transmission tube; 916, groove; 917, tooth block; 918, ball head rod; 919, toothed disc; 920, delivery pipe; 921, discharge pipe; 922, nozzle. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0049] See also Figures 1 to 14 The present invention provides a technical solution: a raw material mixer for the production of PVC foam boards, comprising:

[0050] A mixing tank 1, the top of the mixing tank 1 is fixedly connected with a lubricating liquid cylinder 2, the lower part of the lubricating liquid cylinder 2 extends to the inside of the mixing tank 1 and is rotatably connected with an infusion ring 3, the bottom of the lubricating liquid cylinder 2 is fixedly connected with an adjustment cover 4, the inside of the adjustment cover 4 is rotatably connected with a shaft 5, the bottom of the shaft 5 passes through the mixing tank 1 and is fixedly connected with a transmission motor 6, and the surface of the transmission motor 6 is fixedly connected to the bottom surface of the mixing tank 1;

[0051] Also includes:

[0052] The infusion mechanism 7 is movably connected between the inner top surface of the mixing tank 1 and the surface of the lubricating fluid cylinder 2. The top of the infusion ring 3 is fixedly connected to the surface of the infusion mechanism 7. The infusion ring 3 rotates to carry the infusion mechanism 7 to run, and the lubricating fluid inside the lubricating fluid cylinder 2 is regularly transported by the infusion mechanism 7. It should be noted that the upper and lower parts of the inner ring of the infusion ring 3 are fixedly sleeved with sealed bearings, the inner ring of the sealed bearing is fixedly connected to the surface of the lubricating fluid cylinder 2, and the surface of the lubricating fluid cylinder 2 is provided with a drainage hole, which facilitates the lubricating fluid to enter the infusion ring 3 from the inside of the lubricating fluid cylinder 2.

[0053] The lower part of the shaft 5 is equidistantly and movably connected with two support rings 8, and the inside of the two support rings 8 is movably connected with a fluid replenishment mechanism 9 that cooperates with the infusion mechanism 7. After the infusion mechanism 7 delivers lubricating liquid to the inside of the fluid replenishment mechanism 9, the fluid replenishment mechanism 9 can replenish new lubricating liquid according to the fluidity of the raw materials. It should be noted that: the inner ring of the support ring 8 is symmetrically provided with arc guide grooves, and the surface of the shaft 5 is symmetrically fixedly connected with arc guide strips, and the two arc guide strips are slidably connected with the two arc guide grooves, so that the shaft 5 can rotate synchronously with the support ring 8, and the support ring 8 can slide up and down on the surface of the shaft 5; under the action of the fluid replenishment mechanism 9, when the fluidity of the raw materials inside the mixing tank 1 is poor during the mixing process, the lubricating liquid is automatically replenished to the raw materials inside the mixing tank 1.

[0054] In this embodiment, Figures 1 to 14 As shown, the infusion mechanism 7 includes a single-tooth gear ring 701, which is rotatably connected to the lower part of the lubricating fluid cylinder 2, and the bottom of the single-tooth gear ring 701 is fixedly connected to the top of the infusion ring 3. The front and rear sides of the inner top surface of the mixing tank 1 are symmetrically slidably connected with adjustment racks 702, and the two adjustment racks 702 are respectively arranged on both sides of the single-tooth gear ring 701. A limiting groove 703 is provided on the side of the adjustment rack 702 away from the single-tooth gear ring 701, and an adjustment pressure rod 704 is fixedly connected to the end of the adjustment rack 702 away from the single-tooth gear ring 701. It should be noted that: adjustment grooves are symmetrically opened on the inner top surface of the mixing tank 1, and an adjustment block is fixedly connected to the top of the adjustment rack 702. The two adjustment racks 702 are slidably connected to the inside of the corresponding adjustment grooves through the adjustment block. A restoring spring is fixedly connected between the side wall of the adjustment block and the inner wall of the adjustment groove. When the limiting groove 703 on the side wall of the adjustment rack 702 is released from the limiting state, the restoring spring moves the adjustment rack 702 to reset.

[0055] The lower part of the lubricating liquid cylinder 2 is rotatably connected with a circular gear ring 705, and the circular gear ring 705 is fixedly connected to the top of the single-tooth gear ring 701. The left and right sides of the inner top surface of the mixing tank 1 are symmetrically slidably connected with L-shaped tooth plates 706. The two L-shaped tooth plates 706 are respectively engaged with the two sides of the circular gear ring 705. The two L-shaped tooth plates 706 correspond one by one to the two adjusting racks 702. One end of the L-shaped tooth plate 706 is fixedly connected with a spring limit block 707 that cooperates with the limit groove 703. It should be noted that: the inner rings of the single-tooth gear ring 701 and the circular gear ring 705 are fixedly connected with mounting bearings, the inner rings of the mounting bearings are fixedly sleeved on the surface of the lubricating liquid cylinder 2, and a synchronization rod is fixedly connected between the bottom of the single-tooth gear ring 701 and the top of the infusion ring 3. When the infusion ring 3 rotates, the single-tooth gear ring 701 and the circular gear ring 705 will rotate synchronously; the inner top surface of the mixing tank 1 is symmetrically provided with slide grooves, and the top of the L-shaped tooth plate 706 is fixedly connected with a slider, and the two L-shaped tooth plates 706 are slidably connected to the inside of the corresponding slide grooves through the slider, and a return spring is fixedly connected between the side wall of the slider and the inner wall of the slide groove.

[0056] The inner top surface of the mixing tank 1 is symmetrically fixedly connected with a spring pull rod 708, and a pressure ring 709 is fixedly connected between the bottoms of the two spring pull rods 708. The pressure ring 709 is movably sleeved on the lower position of the lubricating liquid cylinder 2, and a pressure block 710 is symmetrically fixedly connected to the top of the pressure ring 709. The two adjusting pressure rods 704 correspond one to one with the two pressure blocks 710. It should be noted that: when the single-toothed ring 701 and the circular gear ring 705 rotate synchronously with the infusion ring 3, the circular gear ring 705 engages with the two L-shaped tooth plates 706, and the two L-shaped tooth plates 706 move relative to each other and carry the spring limit block 707 to insert into the limit groove 703 on the side wall of the adjustment rack 702, so that the adjustment rack 702 can only translate in one direction. At the same time, the single-toothed ring 701 periodically engages with the two adjustment racks 702, so that the two adjustment racks 702 move relative to each other and carry the adjustment pressure rod 704 to contact the corresponding pressure block 710, so that the pressure block 710 is compressed and moves downward between the two spring pull rods 708 with the pressure ring 709.

[0057] The surface of the infusion ring 3 is symmetrically fixedly connected with an L-shaped infusion tube 711 that matches the infusion mechanism 9, the middle of the L-shaped infusion tube 711 is fixedly connected with a sealing sleeve 712, the bottom of the sealing sleeve 712 overlaps the top of the adjustment cover 4, the inside of the sealing sleeve 712 is vertically slidably connected with a sealing plate 713 that matches the L-shaped infusion tube 711, and the top of the sealing plate 713 is fixedly connected with a spring push rod 714 that matches the pressure ring 709. It should be noted that when the pressure ring 709 moves downward, it will press against the top of the spring push rod 714, so that the spring push rod 714 moves downward with the sealing plate 713 inside the sealing sleeve 712, and at this time, the sealing plate 713 releases the seal on the inside of the L-shaped infusion tube 711, so that after the stirring blade 906 stirs for a period of time, the lubricating liquid inside the infusion ring 3 is automatically transported from the position of the L-shaped infusion tube 711 to the direction of the support ring 8.

[0058] In this embodiment, Figures 1 to 14 As shown, the spring stopper 707 is composed of a spring rod and a stopper, the stopper is fixedly connected to the movable end of the spring rod, and a chamfer is provided at one end of the stopper close to the stopper slot 703. It should be noted that the movable end of the spring rod can only be extended and retracted, but not rotated, to avoid interference; under the action of the chamfer, in the process of the stopper slot 703 and the spring stopper 707 cooperating, the adjustment rack 702 can move in one direction.

[0059] In this embodiment, Figures 1 to 14 As shown, the spring push rod 714 is composed of a push rod and a compression spring. The push rod is movably inserted into the top of the sealing sleeve 712, and the bottom of the push rod is fixedly connected to the top of the sealing plate 713. The compression spring is movably sleeved on the upper part of the push rod, and the bottom of the compression spring is fixedly connected to the top of the sealing sleeve 712.

[0060] In this embodiment, Figures 1 to 14 As shown, the fluid replenishment mechanism 9 includes a corrugated groove 901, which is opened on the surface of the adjustment cover 4, and the two sides of the corrugated groove 901 are slidably connected with the adjustment tube 902, the lower ends of the two L-shaped infusion tubes 711 are movably plugged into the upper parts of the two adjustment tubes 902, and the insides of the two support rings 8 are fixedly connected with the guide ring 903, the two guide rings 903 are fixedly connected with the guide tube 904, and the lower ends of the two adjustment tubes 902 are fixedly connected to the inside of the upper guide ring 903. It should be noted that: the top of the regulating tube 902 is fixedly connected with a sealing ring that matches the L-shaped infusion tube 711, and the side wall of the upper part of the regulating tube 902 is fixedly connected with a sliding pin, and the upper part of the regulating tube 902 is slidably connected to the inside of the corrugated groove 901 through the sliding pin; when the regulating tube 902 rotates synchronously with the support ring 8 and the shaft rod 5, the upper part of the regulating tube 902 moves along the track of the corrugated groove 901 through the sliding pin. At this time, the regulating tube 902 will move back and forth up and down on the surface of the shaft rod 5 with the support ring 8, and the regulating tube 902 will also slide up and down at the lower position of the L-shaped infusion tube 711, ensuring that the lubricating fluid inside the L-shaped infusion tube 711 flows stably into the regulating tube 902.

[0061] The upper part of the support ring 8 is rotatably connected with the blade ring 905, the outer wall of the blade ring 905 is symmetrically fixedly connected with the stirring blade 906, the surface of the support ring 8 is symmetrically fixedly connected with the spring pressure rod 907, the movable end of the spring pressure rod 907 is fixedly connected with the inner wall of the blade ring 905, and the middle part of the support ring 8 is symmetrically fixedly connected with the protrusion 908. It should be noted that: a sealed bearing is fixedly connected between the surface of the blade ring 905 and the surface of the support ring 8 to ensure that the blade ring 905 can stably rotate on the support ring 8; the arc surface of the protrusion 908 is set as an involute trajectory, when the distance of the misaligned rotation of the blade ring 905 and the support ring 8 is longer, the extrusion rod 913 is pressed and moved farther, and at this time, the T-type piston plate 911 and the piston tube 910 cooperate to extract more lubricating fluid.

[0062] A through slot 909 is provided inside the stirring blade 906 , a piston tube 910 is fixedly connected inside the through slot 909 , a T-shaped piston plate 911 is slidably connected inside the piston tube 910 , and one end of the T-shaped piston plate 911 away from the piston tube 910 is movably connected to the inner wall of the through slot 909 .

[0063] A gear rod 912 is rotatably connected to one side of the inner wall of the through groove 909, and an extrusion rod 913 that cooperates with the protrusion 908 is movably inserted between the inner wall of the through groove 909 and the blade ring 905. One end of the extrusion rod 913 is fixedly connected to an L-shaped rack 914, and the top of the L-shaped rack 914 is meshed with the bottom of the gear rod 912. The end of the gear rod 912 away from the L-shaped rack 914 is rotatably connected to a transmission tube 915, and one end of the transmission tube 915 is movably connected to the inner wall of the through groove 909. Twenty-four grooves 916 are equidistantly provided on the surface of the transmission tube 915 along the circumference, and a tooth block 917 that cooperates with the T-shaped piston plate 911 is slidably connected to the inside of the groove 916. A ball head rod 918 is fixedly connected to one end of the tooth block 917, and the ball head rod 918 is movably inserted into the interior of the transmission tube 915. The end of the gear rod 912 close to the inner wall of the transmission tube 915 is fixedly connected to a toothed disk 919 that cooperates with the tooth block 917.

[0064] The surface of the guide ring 903 is symmetrically fixedly connected with a delivery pipe 920, and the two delivery pipes 920 correspond to the two stirring blades 906 one by one. One end of the delivery pipe 920 extends to the inside of the stirring blade 906 and is fixedly connected to the end of the corresponding piston tube 910. The end of the piston tube 910 is fixedly connected with a discharge pipe 921, and the surface of the discharge pipe 921 is fixedly connected with a nozzle 922, and the nozzle 922 is fixedly connected to the surface of the stirring blade 906. It should be noted that: the side position of the delivery pipe 920 close to the support ring 8 is set as a spring tube structure, when the support ring 8 and the blade ring 905 are misaligned, interference is avoided; and a one-way bearing is fixedly connected between the discharge pipe 921 and the piston tube 910, and a one-way bearing is fixedly connected between the delivery pipe 920 and the piston tube 910. The two one-way bearings are set in opposite directions, so that the T-shaped piston plate 911 can pump and discharge liquid during the reciprocating movement inside the piston tube 910.

[0065] In this embodiment, Figures 1 to 14 As shown, the spring pressure rod 907 is configured as an arc-shaped spring rod, the movable end of the spring pressure rod 907 is fixedly connected with a cushion block, the side wall of the cushion block is fixedly connected to the inner wall of the blade ring 905, and the spring pressure rod 907 is arranged below the protrusion 908. It should be noted that: through the squeezing force of the spring pressure rod 907, when the fluidity of the raw materials inside the mixing tank 1 is good, the blade ring 905 will rotate synchronously with the support ring 8; because the infusion mechanism 7 can be automatically opened regularly, when the blade ring 905 and the support ring 8 are misaligned during the initial stirring of the raw materials inside the mixing tank 1, the liquid replenishing mechanism 9 cannot replenish the lubricating oil, thereby avoiding replenishing new lubricating liquid at the initial stage of raw material stirring.

[0066] A push spring is movably connected between the inner wall of the blade ring 905 and the surface of the extrusion rod 913. It should be noted that when the fluidity of the raw material is good, the extrusion rod 913 can be easily reset and moved under the elastic recovery of the push spring.

[0067] In this embodiment, Figures 1 to 14 As shown, there are twenty-four teeth on the surface of the toothed disc 919, and the twenty-four teeth correspond to the twenty-four tooth blocks 917 one by one. The surface of the teeth is provided with an inclined block that cooperates with the ball head rod 918, and a short spring is movably connected between the surface of the ball head rod 918 and the inner wall of the transmission tube 915.

[0068] A damping bearing is fixedly connected between one end of the transmission tube 915 and the inner wall of the through groove 909. It should be noted that when the gear rod 912 rotates with the transmission tube 915, under the action of the damping bearing, the transmission tube 915 and the gear rod 912 rotate and produce misalignment, so that the teeth on the gear plate 919 press against the ball head rod 918, and the ball head rod 918 extends from the inside of the groove 916 with the tooth block 917 and meshes with the bottom of the T-shaped piston plate 911 for transmission.

[0069] In this embodiment, Figures 1 to 14 As shown, the inner wall of the through slot 909 is symmetrically fixedly connected with guide rods, and the two guide rods are movably inserted into the interior of the T-type piston plate 911. The surface of the guide rod is movably sleeved with a reset spring, and the bottom of the T-type piston plate 911 is set as a tooth surface that matches the tooth block 917. It should be noted that the tooth surface is set so that the T-type piston plate 911 can be stably meshed with the tooth block 917. When the gear rod 912 stops rotating, the short spring brings the ball head rod 918 to reset and move. At this time, the tooth block 917 is released from the meshing with the T-type piston plate 911. Under the action of the reset spring, the T-type piston plate 911 resets and moves inside the piston tube 910, and the extracted lubricating liquid is discharged from the drain pipe 921 and the nozzle 922.

[0070] In this embodiment, Figures 1 to 14 As shown, a method for using a raw material mixer for producing PVC foam boards comprises the following steps:

[0071] S1. When in use, after the mixing raw materials are placed in the mixing tank 1, the transmission motor 6 is started to rotate synchronously with the shaft 5, the support ring 8, the blade ring 905 and the stirring blade 906 to mix the mixing raw materials in the mixing tank 1. At the same time, the support ring 8 slides along the track of the corrugated groove 901 on the surface of the adjustment cover 4 with the adjustment tube 902, so that the adjustment tube 902 can simultaneously move up and down on the surface of the shaft 5 with the two support rings 8;

[0072] S2. At the same time, during the synchronous rotation of the support ring 8 with the adjusting tube 902, the L-shaped infusion tube 711 and the infusion ring 3, the infusion ring 3 rotates with the single-toothed ring 701 and the round-toothed ring 705, and then the round-toothed ring 705 engages with the adjacent L-shaped toothed plate 706, and the L-shaped toothed plate 706 with the spring limit block 707 is inserted into the limit groove 703 of the side wall of the adjacent adjusting rack 702 to limit the reset movement of the adjusting rack 702, and the single-toothed ring 701 will periodically engage with the corresponding adjusting rack 702 during the rotation process, so that the adjusting rack 702 Slowly move on the top of the mixing tank 1. After the stirring blade 906 stirs the raw materials to a fixed period, the adjusting rack 702 brings the corresponding adjusting pressure rod 704 to press on the top of the corresponding pressing block 710, so that the pressing block 710 moves downward with the pressure ring 709. At this time, the pressure ring 709 presses on the top of the two spring push rods 714, so that the spring push rods 714 move downward with the sealing plate 713 and release the seal of the L-shaped infusion tube 711, so that the lubricating liquid inside the lubricating liquid cylinder 2 flows from the infusion ring 3 position into the L-shaped infusion tube 711, the adjusting tube 902 and the guide ring 903.

[0073] S3. When the fluidity of the raw materials inside the mixing tank 1 is the same as the set value, under the action of the spring pressure rod 907, the support ring 8 can rotate synchronously with the blade ring 905 and the stirring blade 906. When the fluidity of the raw materials inside the mixing tank 1 is lower than the set value, the lubricating fluid needs to be supplemented. At this time, the resistance of the stirring blade 906 increases, causing the stirring blade 906 to rotate with the blade ring 905 and the support ring 8. Then, the extrusion rod 913 on the blade ring 905 contacts the convex block 908 inside the support ring 8, so that the extrusion rod 913 is compressed and the L-shaped rack 914 is meshed with the gear rod 912 for transmission. At this time, the gear rod 912 is squeezed with the toothed disc 919 on the end of the ball head rod 918 at the inner circle position of the transmission tube 915, so that the ball head rod 918 moves out of the groove 916 with the tooth block 917. And mesh with the bottom of the T-shaped piston plate 911, at this time, the transmission tube 915 rotated with the gear rod 912 meshes with the T-shaped piston plate 911 through the tooth block 917, so that the piston plate moves inside the piston tube 910, and the lubricating liquid inside the guide ring 903 is pumped into the piston tube 910 through the infusion tube on the piston tube 910. When the blade ring 905 and the support ring 8 stop rotating in an offset manner, the L-shaped rack 914 and the gear rod 912 stop meshing and transmitting. At this time, the ball head rod 918 brings the tooth block 917 back to the inside of the groove 916 and releases the meshing with the T-shaped piston plate 911. Then the T-shaped piston plate 911 is reset to discharge the extracted lubricating liquid from the discharge pipe 921 position, and the lubricating liquid sprayed from the nozzle 922 position is dispersed in the interior of the mixture along with the up and down stirring blades 906.

[0074] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A raw material mixer for the production of PVC foam boards, comprising: A mixing tank (1), wherein a lubricating liquid cylinder (2) is fixedly connected to the top of the mixing tank (1), a lower portion of the lubricating liquid cylinder (2) extends into the interior of the mixing tank (1) and is rotatably connected to an infusion ring (3), a bottom portion of the lubricating liquid cylinder (2) is fixedly connected to an adjustment cover (4), an interior portion of the adjustment cover (4) is rotatably connected to an axle (5), a bottom portion of the axle (5) passes through the mixing tank (1) and is fixedly connected to a transmission motor (6), a surface of the transmission motor (6) being fixedly connected to the bottom surface of the mixing tank (1); It is characterized by further comprising: An infusion mechanism (7), wherein the infusion mechanism (7) is movably connected between the inner top surface of the mixing tank (1) and the surface of the lubricating liquid cylinder (2), and the top of the infusion ring (3) is fixedly connected to the surface of the infusion mechanism (7), and the infusion mechanism (7) is driven by the rotating infusion ring (3) to transport the lubricating liquid inside the lubricating liquid cylinder (2) at a regular time; The lower part of the shaft (5) is equidistantly and movably connected to two support rings (8); the interior of the two support rings (8) and the adjustment cover (4) are movably connected to a fluid replenishment mechanism (9) that cooperates with the infusion mechanism (7); after the infusion mechanism (7) delivers lubricating fluid to the interior of the fluid replenishment mechanism (9), the fluid replenishment mechanism (9) can replenish new lubricating fluid according to the fluidity of the raw material; The infusion mechanism (7) comprises a single-toothed ring (701), the single-toothed ring (701) being rotatably connected to the lower part of the lubricating liquid cylinder (2), the bottom of the single-toothed ring (701) being fixedly connected to the top of the infusion ring (3), the front and rear sides of the inner top surface of the mixing tank (1) being symmetrically slidably connected with adjustment racks (702), the two adjustment racks (702) being respectively arranged at the positions on both sides of the single-toothed ring (701), a limiting groove (703) being provided on a side of the adjustment rack (702) away from the single-toothed ring (701), and an adjustment pressure rod (704) being fixedly connected to one end of the adjustment rack (702) away from the single-toothed ring (701); The lower part of the lubricating liquid cylinder (2) is rotatably connected to a circular tooth ring (705), the circular tooth ring (705) is fixedly connected to the top of the single-tooth tooth ring (701), and the left and right sides of the inner top surface of the mixing tank (1) are symmetrically slidably connected to L-shaped tooth plates (706), the two L-shaped tooth plates (706) are respectively meshed with the two sides of the circular tooth ring (705), the two L-shaped tooth plates (706) correspond one to one with the two adjustment racks (702), and one end of the L-shaped tooth plate (706) is fixedly connected to a spring limit block (707) that matches the limit groove (703); A spring pull rod (708) is symmetrically fixedly connected to the inner top surface of the mixing tank (1), a pressure ring (709) is fixedly connected between the bottoms of the two spring pull rods (708), the pressure ring (709) is movably sleeved on the lower part of the lubricating liquid cylinder (2), a pressure block (710) is symmetrically fixedly connected to the top of the pressure ring (709), and the two adjusting pressure rods (704) correspond to the two pressure blocks (710) one by one; An L-shaped infusion tube (711) matching with the infusion mechanism (9) is symmetrically fixedly connected to the surface of the infusion ring (3); a sealing sleeve (712) is fixedly connected to the middle of the L-shaped infusion tube (711); the bottom of the sealing sleeve (712) overlaps the top of the adjustment cover (4); a sealing plate (713) matching with the L-shaped infusion tube (711) is vertically slidably connected inside the sealing sleeve (712); and a spring push rod (714) matching with the pressure ring (709) is fixedly connected to the top of the sealing plate (713); The fluid replenishing mechanism (9) comprises a corrugated groove (901), the corrugated groove (901) is provided on the surface of the regulating cover (4), both sides of the corrugated groove (901) are slidably connected with regulating tubes (902), the lower ends of the two L-shaped infusion tubes (711) are respectively movably plugged into the upper parts of the two regulating tubes (902), the interiors of the two support rings (8) are fixedly connected with guide rings (903), the two guide rings (903) are fixedly connected with a guide tube (904), and the lower ends of the two regulating tubes (902) are fixedly connected to the interior of the upper guide ring (903); The upper part of the support ring (8) is rotatably connected to a blade ring (905), the outer wall of the blade ring (905) is symmetrically fixedly connected to a stirring blade (906), the surface of the support ring (8) is symmetrically fixedly connected to a spring pressure rod (907), the movable end of the spring pressure rod (907) is fixedly connected to the inner wall of the blade ring (905), and the middle part of the support ring (8) is symmetrically fixedly connected to a protrusion (908); A through groove (909) is provided inside the stirring blade (906), a piston tube (910) is fixedly connected inside the through groove (909), a T-shaped piston plate (911) is slidably connected inside the piston tube (910), and one end of the T-shaped piston plate (911) away from the piston tube (910) is movably connected to the inner wall of the through groove (909); A gear rod (912) is rotatably connected to one side of the inner wall of the through groove (909); an extrusion rod (913) that cooperates with the protrusion (908) is movably inserted between the inner wall of the through groove (909) and the blade ring (905); one end of the extrusion rod (913) is fixedly connected to an L-shaped rack (914); the top of the L-shaped rack (914) is meshed with the bottom of the gear rod (912); one end of the gear rod (912) away from the L-shaped rack (914) is rotatably connected to a transmission tube (915); one end of the transmission tube (915) is engaged with the through groove ( 909), the surface of the transmission tube (915) is provided with twenty-four grooves (916) equidistantly along the circumference, a tooth block (917) matching with the T-shaped piston plate (911) is slidably connected inside the groove (916), one end of the tooth block (917) is fixedly connected with a ball head rod (918), the ball head rod (918) is movably inserted inside the transmission tube (915), and one end of the gear rod (912) close to the inner wall of the transmission tube (915) is fixedly connected with a toothed disc (919) matching with the tooth block (917); The surface of the guide ring (903) is symmetrically and fixedly connected with a delivery pipe (920), and the two delivery pipes (920) correspond to the two stirring blades (906) one by one, respectively. One end of the delivery pipe (920) extends into the interior of the stirring blade (906) and is fixedly connected to the end of the corresponding piston tube (910), and the end of the piston tube (910) is fixedly connected with a discharge pipe (921), and the surface of the discharge pipe (921) is fixedly connected with a nozzle (922), and the nozzle (922) is fixedly connected to the surface of the stirring blade (906).

2. A raw material mixer for the production of PVC foam boards according to claim 1, characterized in that: The spring limit block (707) is composed of a spring rod and a limit block, the limit block is fixedly connected to the movable end of the spring rod, and one end of the limit block close to the limit groove (703) is chamfered.

3. A raw material mixer for the production of PVC foamed boards according to claim 2, characterized in that: The spring push rod (714) is composed of a push rod and a compression spring. The push rod is movably inserted into the top of the sealing sleeve (712). The bottom of the push rod is fixedly connected to the top of the sealing plate (713). The compression spring is movably sleeved on the upper part of the push rod. The bottom of the compression spring is fixedly connected to the top of the sealing sleeve (712).

4. A raw material mixer for the production of PVC foamed boards according to claim 3, characterized in that: The spring pressure rod (907) is configured as an arc-shaped spring rod, a cushion block is fixedly connected to the movable end of the spring pressure rod (907), a side wall of the cushion block is fixedly connected to the inner wall of the blade ring (905), and the spring pressure rod (907) is arranged below the protrusion (908); A pushing spring is movably connected between the inner wall of the blade ring (905) and the surface of the extrusion rod (913).

5. A raw material mixer for the production of PVC foamed boards according to claim 4, characterized in that: The toothed disc (919) has twenty-four teeth on its surface, the twenty-four teeth corresponding to the twenty-four tooth blocks (917) one by one, the surface of the teeth is provided with an inclined block matching the ball head rod (918), and a short spring is movably connected between the surface of the ball head rod (918) and the inner wall of the transmission tube (915); A damping bearing is fixedly connected between one end of the transmission tube (915) and the inner wall of the through groove (909).

6. A raw material mixer for the production of PVC foamed boards according to claim 5, characterized in that: The inner wall of the through groove (909) is symmetrically fixedly connected with guide rods, and the two guide rods are movably inserted into the interior of the T-shaped piston plate (911). The surface of the guide rods is movably sleeved with a return spring, and the bottom of the T-shaped piston plate (911) is configured as a tooth surface that matches the tooth block (917).

7. A method for using a raw material mixer for producing PVC foam boards, characterized in that: Using a raw material mixer for producing PVC foam boards as described in any one of claims 1 to 6 comprises the following steps: S1. When in use, after the mixing raw materials are placed in the mixing tank (1), the transmission motor (6) is started to rotate synchronously with the shaft (5), the support ring (8), the blade ring (905) and the mixing blade (906) to mix the mixing raw materials in the mixing tank (1). At the same time, the support ring (8) slides along the track of the corrugated groove (901) on the surface of the adjustment cover (4) with the adjustment tube (902), so that the adjustment tube (902) can simultaneously move back and forth up and down on the surface of the shaft (5) with the two support rings (8); S2. At the same time, during the synchronous rotation of the support ring (8) with the adjusting tube (902), the L-shaped infusion tube (711) and the infusion ring (3), the infusion ring (3) rotates with the single-toothed ring (701) and the round-toothed ring (705), and then the round-toothed ring (705) meshes with the adjacent L-shaped toothed plate (706), and the L-shaped toothed plate (706) with the spring stopper (707) is inserted into the limit groove (703) of the side wall of the adjacent adjusting rack (702), thereby limiting the adjustment rack (702) from resetting. During the rotation of the single-toothed ring (701), it meshes with the corresponding adjusting rack (702) in stages, so that the adjusting rack (702) Slowly moving at the top of the mixing tank (1), as the stirring blades (906) stir the raw materials to a fixed period, the adjusting rack (702) brings the corresponding adjusting pressure rod (704) to press against the top of the corresponding pressure block (710), so that the pressure block (710) moves downward with the pressure ring (709), and at this time, the pressure ring (709) presses against the top of the two spring push rods (714), so that the spring push rods (714) move downward with the sealing plate (713) and release the seal of the L-shaped infusion tube (711), so that the lubricating liquid inside the lubricating liquid cylinder (2) flows from the infusion ring (3) into the inside of the L-shaped infusion tube (711), the adjusting tube (902) and the guide ring (903); S3. When the fluidity of the raw materials in the mixing tank (1) is the same as the set value, under the action of the spring pressure rod (907), the support ring (8) can rotate synchronously with the blade ring (905) and the stirring blade (906). When the fluidity of the raw materials in the mixing tank (1) is lower than the set value, lubricating fluid needs to be added. At this time, the resistance of the stirring blade (906) increases, causing the stirring blade (906) to rotate with the blade ring (905) and the support ring (8). The extrusion rod (913) on the blade ring (905) contacts the protrusion (908) inside the support ring (8), so that the extrusion rod (913) is pressed and the L-shaped rack (914) is meshed with the gear rod (912) for transmission. At this time, the gear rod (912) is pressed with the toothed disc (919) on the end of the ball head rod (918) at the inner ring position of the transmission tube (915), so that the ball head rod (918) with the tooth block (917) is pulled out from the groove (916). The piston plate (910) is moved out and meshes with the bottom of the T-shaped piston plate (911). At this time, the transmission tube (915) rotates with the gear rod (912) and meshes with the T-shaped piston plate (911) through the gear block (917), so that the piston plate moves inside the piston tube (910). The lubricating fluid inside the guide ring (903) is pumped into the piston tube (910) through the infusion tube on the piston tube (910). When the blade ring (905) and the support ring (8) stop rotating in an offset manner, , the L-shaped rack (914) and the gear rod (912) stop meshing and transmission, at which time the ball rod (918) with the gear block (917) is reset to the inside of the groove (916) and releases the meshing with the T-shaped piston plate (911), and then the T-shaped piston plate (911) is reset to discharge the extracted lubricating liquid from the position of the discharge pipe (921), and the lubricating liquid sprayed from the position of the nozzle (922) is dispersed in the interior of the mixed material along with the stirring blade (906) that rises and falls.

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