Rubber sheet multi-stage crushing device for rubber product production

Abstract

The rubber sheet multi-stage crushing device for rubber product production comprises a material transferring frame, the material transferring frame comprises a roller plate, a middle rod body and storage racks, the bottom end of the middle rod body is perpendicularly connected with the roller plate in a damping rotating mode, the multiple sets of storage racks are symmetrically arranged on the two sides of the middle rod body, the storage racks are in a U shape and are horizontally arranged, and openings of the storage racks face outwards; an inner baffle is vertically arranged at the inner end of the surface of the storage rack, a rubber sheet is placed at the top of the storage rack and abuts against the inner baffle, and a butt joint base is arranged in the middle of the top end of the middle rod body; heating the furnace body; a material lifting assembly; a frame body positioning assembly; a primary crushing assembly; a second-stage crushing assembly; a material collecting seat; the cooling and material guiding assembly is mounted above the material collecting groove, and the cooling and material guiding assembly comprises a middle barrel, a lifting part and a spiral material guiding rail; according to the rubber sheet cutting device, rubber sheets can be subjected to multi-stage cutting, so that needed rubber particles are processed, and automatic lifting and transferring of the rubber sheets can be achieved in the cutting and crushing process.

Description

Technical Field

[0001] The invention relates to the technical field of rubber crushing equipment, and in particular to a multi-stage crushing device for rubber sheets used in the production of rubber products. Background Art

[0002] The processing of rubber sheets usually includes the following steps: Plasticizing: reducing the length of the rubber macromolecular chain through mechanical, thermal and chemical reagent addition, thereby increasing the plasticity of the rubber; Mixing: processing the plastic raw rubber and various compounding agents into compound rubber on a rubber mixer. Compounding agents are divided into vulcanizers, vulcanization accelerators, vulcanization agent activators, antioxidants, anti-scorch agents, reinforcing fillers, softening plasticizers, and other special compounding agents according to their functions; Calendering: the compound rubber is made into a film on a calender or made into a semi-finished rubber tape with a skeleton material. The calendering process includes operations such as sheeting, laminating, profiling, and gluing of textiles;

[0003] After the rubber sheets are produced, they will be hung on a mobile rack to dry and shape. After the rubber sheets are formed, they will be crushed into granules and then vulcanized into rubber products. Before the crushing process, the rubber sheets need to be heated up first so that they can be cut into granules. However, the heated rubber sheets need to be removed by workers and transferred to the slitting equipment. The entire operation has safety hazards and a poor working environment. At the same time, the slitting equipment is not continuous and the slitting efficiency is low. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a multi-stage crushing device for rubber sheets used in the production of rubber products, which solves the problems mentioned in the background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A multi-stage crushing device for rubber sheet for rubber product production comprises a transfer rack, which comprises a roller plate, a middle rod body and a storage rack, the bottom end of the middle rod body is vertically damped and rotatably connected to the roller plate, a plurality of storage racks are symmetrically arranged on both sides of the middle rod body, the storage racks are U-shaped and horizontally arranged, the openings of the storage racks face outward, an inner baffle is vertically arranged on the inner end of the surface of the storage rack, a rubber sheet is placed on the top of the storage rack, the rubber sheet contacts the inner baffle, and a docking seat is arranged in the middle of the top end of the middle rod body;

[0007] The heating furnace body is used to heat the rubber sheets on the transfer rack to facilitate subsequent multi-stage slitting. A conveying track for conveying the transfer rack is installed inside the heating furnace body; the outlet end of the heating furnace body is the unloading position;

[0008] A lifting assembly is installed outside the unloading position, and is used to sequentially lift rubber sheets on a plurality of racks from bottom to top, and a plurality of heated rubber sheets are stacked and placed on the lifting assembly;

[0009] The frame positioning assembly is placed above the unloading position, the frame positioning assembly is connected with the docking seat, and the frame positioning assembly is used to drive the middle rod body to rotate;

[0010] A primary crushing assembly is installed on the top side of the lifting assembly, and is used to transversely cut the rubber sheets stacked on the lifting assembly to obtain rubber strips;

[0011] A secondary crushing assembly, the top of which is connected to the primary crushing assembly, and the secondary crushing assembly is used to cut the rubber strips longitudinally to obtain rubber particles;

[0012] An aggregate seat, one side of the top of which is a material guide slope, and the other side of the top is an aggregate trough, the aggregate trough is located at the bottom of the material guide slope, and the material guide slope is located below the secondary crushing assembly;

[0013] A cooling material guide assembly is installed above the material collection trough. The cooling material guide component includes a middle cylinder, a lifting component, and a spiral material guide track. The middle cylinder is installed above the material collection trough at intervals. Both ends of the middle cylinder are open structures. The outer wall of the middle cylinder is provided with a spiral material guide track. An air guide cavity is opened in the shell of the middle cylinder. The air guide cavity is provided with exhaust holes along the spiral material guide track. The air guide cavity is connected to a cold air blower. The exhaust holes are used to discharge cold air to the spiral material guide track to reduce the temperature of the rubber particles. The lifting component is vertically slidably installed inside the middle cylinder. The lifting component is used to lift the rubber particles in the material collection trough to the top feeding end of the spiral material guide track.

[0014] Furthermore, an exhaust slot is provided on the bottom surface of the storage rack, and an air guide component is installed inside the middle rod body. The air guide component is connected to each storage rack. The air guide component is used to blow hot air to the exhaust slot, and the exhaust slot is used to discharge the hot air downward so that the bottom of the rubber sheet on the storage rack is open.

[0015] Furthermore, the air guide component includes a middle air guide pipe, an air inlet interface is provided on the top surface of the middle rod body, the top end of the middle air guide pipe is connected to the air inlet interface, the side wall of the middle air guide pipe is connected to the storage rack through a branch pipe, and a flow valve is installed on the branch pipe. The flow valve is used to control the exhaust volume of the exhaust slot, and the exhaust volume of the storage rack increases from bottom to top, so that the bottom opening width of the rubber sheet increases successively.

[0016] Furthermore, the frame positioning assembly includes a fan box, a hanging plate, a first drive rod, an assembly plate and an air guide joint. The fan box is installed on the top of the heating furnace body. One end of the hanging plate is arranged on the top surface of the fan box, and the other end is provided with a first switching motor on the bottom surface. The output end of the first switching motor is connected to the first drive rod. The bottom end of the first drive rod is provided with an assembly plate. The bottom surface of the assembly plate is provided with an air guide joint. The air guide joint is inserted into the air inlet interface, and the air guide joint is connected to the fan box. The outer wall of the assembly plate is provided with convex plates distributed in a circular array, and the interior of the docking seat is provided with a docking groove adapted to the convex plate.

[0017] Furthermore, the lifting assembly includes a second switching motor, a bottom plate, a middle guide plate and a top plate. The bottom surface of the bottom plate is provided with a second switching motor, a middle guide plate is vertically provided in the middle of the top surface of the bottom plate, a first screw rod is symmetrically provided on the surface of the bottom plate, the top ends of the middle guide plate and the first screw rod are both installed on the top plate, the outer wall of each group of first screw rods is threadedly fitted with a lifting block, and a lifting rod is provided at the outer end of the lifting block; the lifting rod passes through the middle notch of each shelf from bottom to top in turn to remove the rubber sheets on each shelf at one time, so that the rubber sheets are stacked on the lifting rod.

[0018] Furthermore, the primary crushing assembly includes side guards, cross bars, vertical bars, material guide hoses and conveying rollers. The side guards have a U-shaped cross-section when viewed from above, and the opening of the side guards faces the lifting assembly. The side guards are slidably arranged between the two sets of cross bars. A pad is provided on one side of the inner wall of the side guards, and a horizontally arranged second drive rod is provided on the side wall of the pad. The output end of the second drive rod is connected to the conveying roller, which is inserted into the stacked rubber sheets. A guide roller is embedded in the interior of the pad at a position relative to the conveying roller. A first shearing knife is installed at the bottom of the interior of the side guard, and the first shearing knife is used to cross-cut the rubber sheet; the bottom of the side guard is connected to the material guide hose; when the lifting assembly rotates and switches, the side guards move outward and are staggered.

[0019] Furthermore, the secondary crushing assembly includes a crushing box, the top of which is connected to a material guide hose, the interior of which is symmetrically provided with a material guide oblique block and a material guide vertical block, a material discharge channel being provided between the material guide oblique block and the material guide vertical block, a receiving groove being provided in the middle of the material guide vertical block, a third driving rod being installed inside the receiving groove, the output end of the third driving rod being connected to a second shearing knife, and the second shearing knife longitudinally cutting the rubber strip; a scraper frame is provided at the open end of the receiving groove, a plurality of scraper rods for cleaning the second shearing knife are provided inside the scraper frame, and both ends of the scraper frame are installed on the sides of the material guide vertical block through elastic guide columns.

[0020] Furthermore, the lifting component includes an outer ring plate, a rubber pad, a connecting ring, a swing arm and a second screw. The second screw is symmetrically arranged in the middle cylinder. The bottom end of the second screw extends into the collecting trough. The outer ring plate is threadedly mounted on the second screw. A rubber pad is provided inside the outer ring plate. One end of the swing arm is rotatably connected to the bottom surface of the outer ring plate and a torsion spring is installed at the rotating connection. The other end of the swing arm is connected to the rubber pad. A connecting ring is provided in the middle of the surface of the rubber pad. The rubber pad is funnel-shaped when lifting materials. When the rubber pad moves to the top of the middle cylinder, the rubber pad turns into a cone.

[0021] Furthermore, the top end of the middle cylinder is connected to the top box body through a plurality of side support rods, adjacent side support rods are arranged at intervals, a suspension rod is provided in the middle of the top box body, a suspension rod has a hook at the bottom end, and the suspension hook is used to cooperate with the connecting ring to make the lifting rubber pad convexly deformed.

[0022] Furthermore, a side fixing seat is provided at the outer end of the collection seat, which is fixedly connected to the middle cylinder, and a storage groove is opened on the inner wall of the side fixing seat. A gathering component is installed inside the storage groove, and the gathering component includes an annular track, a movable slider, a winding wheel and a retaining film. The annular track is arranged on the outer wall of the bottom end of the middle cylinder, and a movable slider is slidably installed on the bottom surface of the annular track, and a winding wheel is rotatably installed on the bottom end of the movable slider, and a retaining film is wrapped around the outer wall of the winding wheel, and the top end of the retaining film is fixedly connected to the storage groove. When the movable slider moves along the annular track, the retaining film gathers the rubber particles in the collection groove to prevent the rubber particles from dispersing when the lifting component is lifted.

[0023] The present invention provides a multi-stage crushing device for rubber sheets used in the production of rubber products. Compared with the prior art, it has the following beneficial effects:

[0024] 1. The setting of the transfer rack can achieve the following effects: it can realize the turnover of the finished rubber sheets, which is convenient for each process; the transfer rack can drive the rubber sheets into the heating furnace before slitting to preheat the rubber sheets, making them soft and convenient for subsequent slitting operations;

[0025] 2. Since the temperature of the heated rubber sheets is very high, it is dangerous to operate them directly manually. The lifting assembly can automatically remove the rubber sheets on the transfer rack from bottom to top, so that each rubber sheet can be quickly removed without manual assistance. When the lifting assembly removes the rubber sheets in the same row, the lifting assembly can rotate by itself to transfer the stacked rubber sheets to the primary crushing assembly.

[0026] 3. The primary crushing component can cross-cut the rubber sheet to perform primary crushing on the rubber sheet. At the same time, since the rubber sheets are stacked at this time, a single cross-cut can cut multiple rubber sheets, and the cutting efficiency is higher;

[0027] 4. The secondary crushing component can cut the rubber strips longitudinally to obtain rubber particles, which can be used as raw materials for subsequent rubber product processing;

[0028] 5. The collecting seat can collect rubber particles after multiple cuttings, but the temperature of the rubber particles at this time is relatively high, which is not convenient for transportation and subsequent processing, and the rubber particles need to be fully cooled; the rubber particles in the collecting trough can be lifted up by the lifting component. When the lifting component is lifted to the top of the middle cylinder, the rubber particles can be transferred to the spiral guide track. The rubber particles can be cooled while moving along the spiral guide track. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 The schematic diagram of the structure of the multi-stage crushing device for rubber sheets used in the production of rubber products of the present invention is shown;

[0031] Figure 2 A schematic diagram of the transfer rack structure of the present invention is shown;

[0032] Figure 3 A schematic diagram of the structure of the storage rack of the present invention is shown;

[0033] Figure 4 The schematic diagram of the structure of the material lifting assembly of the present invention is shown;

[0034] Figure 5 It shows a schematic structural diagram of the lifting rod of the present invention in the lifting state;

[0035] Figure 6 A schematic diagram of the docking structure of the transfer rack and the rack positioning assembly of the present invention is shown;

[0036] Figure 7 A schematic diagram of the assembly plate structure of the present invention is shown;

[0037] Figure 8 A schematic diagram of the docking seat structure of the present invention is shown;

[0038] Fig. 9 A schematic diagram of the connection structure of the primary crushing assembly and the secondary crushing assembly of the present invention is shown;

[0039] Fig.10 The schematic diagram of the internal structure of the primary crushing assembly of the present invention is shown;

[0040] Fig.11 A schematic diagram of the scraper frame structure of the present invention is shown;

[0041] Fig.12 The top structural diagram of the aggregate seat of the present invention is shown;

[0042] Fig.13 A schematic diagram of the structure of the gathering component of the present invention is shown;

[0043] Fig.14 The schematic diagram of the structure of the material lifting component of the present invention is shown;

[0044] Fig.15It shows a schematic structural diagram of the lifting and unloading state of the lifting component of the present invention;

[0045] Fig.16 Shows Fig.15 A schematic diagram of the enlarged structure at point A;

[0046] As shown in the figure: 1. conveying track, 2. heating furnace body, 3. frame positioning assembly, 31. fan box, 32. hanging plate, 321. first switching motor, 33. first driving rod, 34. assembly plate, 341. convex plate, 35. air guide joint, 4. lifting assembly, 41. second switching motor, 42. bottom plate, 43. middle guide plate, 44. first screw, 45. top plate, 46. lifting block, 47. lifting rod, 5. First-stage crushing assembly, 51, side shield, 511, cushion block, 52, cross bar, 53, vertical bar, 54, guide hose, 55, conveyor roller, 551, second drive rod, 56, first shear knife, 6, second-stage crushing assembly, 61, crushing box, 611, guide oblique block, 612, guide vertical block, 613, receiving groove, 62, scraper frame, 621, scraper rod, 63, second shear knife, 631, third drive rod, 7, collection Material seat, 71, material guide slope, 72, material collection trough, 73, side fixing seat, 731, storage trough, 8, transfer material rack, 81, roller plate, 82, middle rod body, 821, docking seat, 8211, docking slot, 822, air inlet interface, 83, storage rack, 831, inner baffle, 832, exhaust slot, 84, middle air guide pipe, 841, branch pipe, 842, flow valve, 9, cooling material guide assembly, 91, middle cylinder, 911. air guide cavity, 912. exhaust hole, 92. gathering component, 921. ring track, 922. movable slider, 923. winding wheel, 924. retaining film, 93. lifting component, 931. outer ring plate, 932. rubber pad, 933. connecting ring, 934. swing arm, 935. second screw, 94. top box body, 941. side support rod, 95. suspension rod, 951. hook, 96. spiral guide track. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are 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 technicians in this field without creative work are within the scope of protection of the present invention.

[0048] In order to solve the technical problems in the background technology, a multi-stage crushing device for rubber sheets used in the production of rubber products is provided as follows:

[0049] Combination Figure 1-Figure 16As shown, a multi-stage crushing device for rubber sheet used in rubber product production provided by the present invention comprises a transfer rack 8, which comprises a roller plate 81, a middle rod body 82 and a storage rack 83. The bottom end of the middle rod body 82 is vertically damped and rotatably connected to the roller plate 81. Multiple groups of storage racks 83 are symmetrically arranged on both sides of the middle rod body 82. The storage racks 83 are U-shaped and arranged horizontally. The openings of the storage racks 83 face outwards. An inner baffle plate 831 is vertically arranged on the inner end of the surface of the storage rack 83. A rubber sheet is placed on the top of the storage rack 83. The rubber sheet contacts the inner baffle plate 831. A docking seat 821 is arranged in the middle of the top end of the middle rod body 82.

[0050] The heating furnace body 2 is used to heat the rubber sheet on the transfer rack 8 to facilitate subsequent multi-stage cutting. The interior of the heating furnace body 2 is equipped with a conveying track 1 for conveying the transfer rack 8; the outlet end of the heating furnace body 2 is a discharge position;

[0051] The lifting assembly 4 is installed outside the unloading position, and is used to sequentially lift the rubber sheets on the multiple racks 83 from bottom to top, and the multiple heated rubber sheets are stacked on the lifting assembly 4;

[0052] The frame positioning assembly 3 is placed above the unloading position, and the frame positioning assembly 3 is connected with the docking seat 821, and the frame positioning assembly 3 is used to drive the middle rod body 82 to rotate;

[0053] A primary crushing assembly 5 is installed on the top side of the lifting assembly 4, and is used to transversely cut the rubber sheets stacked on the lifting assembly to obtain rubber strips;

[0054] A secondary crushing assembly 6, the top of which is connected to the primary crushing assembly 5, and the secondary crushing assembly 6 is used to cut the rubber strips longitudinally to obtain rubber particles;

[0055] The material collecting seat 7 has a material guiding slope 71 on one side of the top and a material collecting trough 72 on the other side of the top. The material collecting trough 72 is located at the bottom end of the material guiding slope 71. The material guiding slope 71 is located below the secondary crushing assembly 6.

[0056] The cooling material guide assembly 9 is installed above the material collection trough 72. The cooling material guide component includes a middle cylinder 91, a lifting component 93, and a spiral material guide track 96. The middle cylinder 91 is installed above the material collection trough 72 at intervals. Both ends of the middle cylinder 91 are open structures. The outer wall of the middle cylinder 91 is provided with a spiral material guide track 96. An air guide cavity 911 is opened in the shell of the middle cylinder 91. The air guide cavity 911 is provided with exhaust holes 912 along the spiral material guide track 96. The air guide cavity 911 is connected to the cold air blower. The exhaust holes 912 are used to discharge cold air to the spiral material guide track 96 to reduce the temperature of the rubber particles. The lifting component 93 is vertically slidably installed inside the middle cylinder 91. The lifting component 93 is used to lift the rubber particles in the material collection trough 72 to the top feeding end of the spiral material guide track 96.

[0057] In the above scheme:

[0058] 1. The setting of the transfer rack can achieve the following effects:

[0059] 1.1. It can realize the turnover of the finished rubber sheets, which is convenient for each process;

[0060] 1.2. The transfer rack can drive the rubber sheet into the heating furnace before slitting to preheat the rubber sheet, making it soft and convenient for subsequent slitting operations;

[0061] 2. Since the temperature of the heated rubber sheets is very high, it is dangerous to operate them directly manually. The lifting assembly can automatically remove the rubber sheets on the transfer rack from bottom to top, so that each rubber sheet can be quickly removed without manual assistance. When the lifting assembly removes the rubber sheets in the same row, the lifting assembly can rotate by itself to transfer the stacked rubber sheets to the primary crushing assembly.

[0062] 3. The primary crushing component can cross-cut the rubber sheet to perform primary crushing on the rubber sheet. At the same time, since the rubber sheets are stacked at this time, a single cross-cut can cut multiple rubber sheets, and the cutting efficiency is higher;

[0063] 4. The secondary crushing component can cut the rubber strips longitudinally to obtain rubber particles, which can be used as raw materials for subsequent rubber product processing;

[0064] 5. The collecting seat can collect rubber particles after multiple cuttings, but the temperature of the rubber particles is relatively high at this time, which is not convenient for transportation and subsequent processing. The rubber particles need to be fully cooled;

[0065] The rubber particles in the collecting trough can be lifted up by the lifting component. When the lifting component is lifted up to the top of the middle cylinder, the rubber particles can be transferred to the spiral material guide track. When the rubber particles move along the spiral material guide track, they can be cooled.

[0066] In this embodiment, an exhaust slot 832 is provided on the bottom surface of the storage rack 83, and an air guide component is installed inside the middle rod body 82. The air guide component is connected to each storage rack 83, and the air guide component is used to blow hot air to the exhaust slot 832. The exhaust slot 832 is used to discharge the hot air downward so that the bottom of the rubber sheet on the storage rack 83 is open.

[0067] In the above scheme: when the lifting component extracts the rubber sheets on each shelf, it is necessary to ensure that the upper rubber sheet is open, so that the rubber sheet can pass through and be stacked smoothly;

[0068] The exhaust slot can exhaust hot air downwards, and the hot air is exhausted into the inside of the rubber sheet, so that the bottom of the rubber sheet is blown open, making it easy to remove the rubber sheet.

[0069] In this embodiment, the air guide component includes a middle air guide pipe 84, and an air inlet interface 822 is opened on the top surface of the middle rod body 82. The top end of the middle air guide pipe 84 is connected to the air inlet interface 822. The side wall of the middle air guide pipe 84 is connected to the storage rack 83 through a branch pipe 841. A flow valve 842 is installed on the branch pipe 841. The flow valve 842 is used to control the exhaust volume of the exhaust groove 832. The exhaust volume of the storage rack 83 increases from bottom to top, so that the bottom opening width of the rubber sheet increases successively.

[0070] In the above scheme: when exhausting, the hot air is discharged to the exhaust slot through the air inlet interface, the middle air duct, and the branch pipe, so that the rubber sheet is opened. The flow valve can adjust the exhaust volume of the branch pipe to change the blowing volume according to the different heights of the rubber sheets, and then adjust the opening range.

[0071] In this embodiment, the frame positioning assembly 3 includes a fan box 31, a hanging plate 32, a first driving rod 33, an assembly plate 34 and an air guide joint 35. The fan box 31 is installed on the top of the heating furnace body 2. One end of the hanging plate 32 is arranged on the top surface of the fan box 31, and the other end is provided with a first switching motor 321 on the bottom surface. The output end of the first switching motor 321 is connected to the first driving rod 33. The bottom end of the first driving rod 33 is provided with an assembly plate 34. The bottom surface of the assembly plate 34 is provided with an air guide joint 35. The air guide joint 35 is inserted into the air inlet interface 822, and the air guide joint 35 is connected to the fan box 31; the outer wall of the assembly plate 34 is provided with a ring array of protruding plates 341, and the interior of the docking seat 821 is provided with a docking groove 8211 adapted to the protruding plate 341.

[0072] In the above scheme: the fan box can draw out the hot air in the heating furnace body, and then the hot air is discharged to the air inlet interface through the air guide joint. The cooperation between the assembly plate and the docking seat can realize that when the first switching motor drives the assembly plate to rotate, it can drive the middle rod body to rotate, so that the rubber sheets on both sides can dock with the lifting assembly in turn.

[0073] In this embodiment, the lifting assembly 4 includes a second switching motor 41, a bottom plate 42, a middle guide plate 43 and a top plate 45. The bottom surface of the bottom plate 42 is provided with a second switching motor 41, and the middle guide plate 43 is vertically provided in the middle of the top surface of the bottom plate 42. The surface of the bottom plate 42 is symmetrically provided with a first screw rod 44. The top ends of the middle guide plate 43 and the first screw rod 44 are both installed on the top plate 45. The outer wall of each group of first screw rods 44 is threadedly fitted with a lifting block 46, and the outer end of the lifting block 46 is provided with a lifting rod 47; the lifting rod 47 passes through the middle notch of each storage rack 83 from bottom to top in turn, so as to remove the rubber sheets on each storage rack 83 at one time, so that the rubber sheets are stacked on the lifting rod 47.

[0074] In the above scheme: when taking materials, the first screw drives the lifting block to slide along the middle guide plate, and the lifting block drives the lifting rod to move upward from bottom to top, and the lifting rod passes through the middle gap of the storage rack in turn. The width of the middle gap is large, which can meet the requirements of the lifting rod and the rubber sheet above it to pass through.

[0075] In this embodiment, the primary crushing assembly 5 includes a side shield 51, a cross bar 52, a vertical bar 53, a material guide hose 54 and a conveying roller 55. The side shield 51 has a U-shaped cross-section when viewed from above, and the opening of the side shield 51 faces the material lifting assembly 4. The side shield 51 is slidably arranged between the two groups of cross bars 52. A cushion block 511 is provided on one side of the inner wall of the side shield 51. The side wall of the cushion block 511 is provided with a horizontally arranged second driving rod 551. The output end of the second driving rod 551 is connected to the conveying roller 55. The conveying roller 55 is inserted into the stacked rubber sheets. A guide roller is embedded in the interior of the cushion block 511 at a position relative to the conveying roller 55. A first shearing knife 56 is installed at the bottom of the inner side shield 51. The first shearing knife 56 is used to cross-cut the rubber sheet; the bottom of the side shield 51 is connected to the material guide hose 54; when the material lifting assembly 4 rotates and switches, the side shield 51 moves outward and staggers.

[0076] In the above scheme:

[0077] After the lifting is completed, the lifting rod is lifted to the top, and then the second switching motor drives the middle guide plate to rotate, so that the lifting rod is switched. In this way, one set of lifting rods with rubber sheets is at the top waiting for crushing, and the other set of lifting rods is at the bottom waiting for material removal;

[0078] Subsequently, the side shield moves outward along the cross bar, the side shield covers the outside of the rubber sheet, the conveying roller is inserted into the inside of the stacked rubber sheets, the stacked rubber sheets are placed above the first scissor frame, and then, the second driving rod drives the conveying roller to move, and the conveying roller squeezes the multiple rubber sheets to contact the guide roller;

[0079] The conveying roller outputs the rubber sheet downwards, and the rubber sheet passes through the first shearing knife, and the first shearing knife reciprocates to cut the rubber sheet to obtain a plurality of rubber strips.

[0080] In this embodiment, the secondary crushing assembly 6 includes a crushing box 61, the top of which is connected to the material guide hose 54, and the interior of the crushing box 61 is symmetrically provided with a material guide oblique block 611 and a material guide vertical block 612, and a material discharge channel is provided between the material guide oblique block 611 and the material guide vertical block 612. A receiving groove 613 is provided in the middle of the material guide vertical block 612, and a third driving rod 631 is installed inside the receiving groove 613. The output end of the third driving rod 631 is connected to the second shearing knife 63, and the second shearing knife 63 cuts the rubber strip longitudinally; a scraper frame 62 is provided at the open end of the receiving groove 613, and a plurality of scraper rods 621 for cleaning the second shearing knife are provided inside the scraper frame 62.

[0081] In the above scheme: the rubber strip is output to the discharge channel along the material guide hose, and then the third driving rod drives the second shearing knife to reciprocate, and the second shearing knife cuts the rubber strip longitudinally to obtain rubber particles. When the second shearing knife is retracted into the receiving groove, the scraper rod can clean the attachments on the outer wall of the second shearing knife to avoid residues on the second shearing knife.

[0082] In this embodiment, the lifting component 93 includes an outer ring plate 931, a rubber pad 932, a connecting ring 933, a swing arm 934 and a second screw 935. The second screw 935 is symmetrically arranged in the middle cylinder 91. The bottom end of the second screw 935 extends into the collecting trough 72. The outer ring plate 931 is threadedly mounted on the second screw 935. A rubber pad 932 is arranged inside the outer ring plate 931. One end of the swing arm 934 is rotatably connected to the bottom surface of the outer ring plate 931 and a torsion spring is installed at the rotating connection. The other end of the swing arm 934 is connected to the rubber pad 932. A connecting ring 933 is arranged in the middle of the surface of the rubber pad 932. The rubber pad 932 is funnel-shaped when lifting materials. When the rubber pad 932 moves to the top of the middle cylinder 91, the rubber pad 932 turns into a cone.

[0083] In the above scheme: the setting of the swing arm can drive the rubber pad to rotate downward and reset, so that the rubber pad is in a funnel state. The rubber pad can be in a funnel shape when lifting materials, thereby maximizing the lifting amount. When the lifting component is lifted, the second screw drives the outer ring plate to move upward. When the outer ring plate is lifted to the top of the middle cylinder, the rubber pad is convexly deformed, so that the rubber particles are fully dispersed and discharged. When the rubber pad is convexly deformed, it will compress the torsion spring.

[0084] In this embodiment, the top end of the middle cylinder 91 is connected to the top box body 94 through a plurality of side support rods 941, and adjacent side support rods 941 are arranged at intervals. A suspension rod 95 is provided in the middle of the top box body 94, and a hook 951 is provided at the bottom end of the suspension rod 95. The hook 951 is used to cooperate with the connecting ring 933 to lift the rubber pad 932 upward and deform it.

[0085] In the above scheme: since the lifting component is not designed with a driving structure, when the second screw is lifted up to the point where the connecting ring is engaged with the hook, the second screw drives the rubber pad to move downward, and the rubber pad convexly deforms, thereby realizing automatic deformation of the rubber pad, and the rubber particles can be fully dispersed from the top of the middle cylinder; when the material is dispersed, the second screw drives the outer ring plate to continue to move downward, the connecting ring can be separated from the hook, and the swing arm can drive the rubber pad to rotate downward and reset to the funnel shape.

[0086] When the lifting component is lifted, the rubber particles above the rubber pad will spread out to the surroundings, resulting in insufficient lifting of the rubber particles. To solve this problem, this embodiment provides the following solution:

[0087] In this embodiment, a side fixing seat 73 is provided at the outer end of the collecting seat 7, and the side fixing seat 73 is fixedly connected to the middle cylinder 91. A storage groove 731 is opened on the inner wall of the side fixing seat 73. A gathering component 92 is installed inside the storage groove 731. The gathering component 92 includes an annular track 921, a movable slider 922, a winding wheel 923 and a retaining film 924. The annular track 921 is arranged on the outer wall of the bottom end of the middle cylinder 91. A movable slider 922 is slidably installed on the bottom surface of the annular track 921. A winding wheel 923 is rotatably installed on the bottom end of the movable slider 922. A retaining film 924 is wrapped around the outer wall of the winding wheel 923. The top end of the retaining film 924 is fixedly connected to the storage groove 731. When the movable slider 922 moves along the annular track 921, the retaining film 924 gathers the rubber particles in the collecting groove 72 to prevent the rubber particles from dispersing when the lifting component 93 is lifted.

[0088] In the above scheme: before the lifting component moves upward, the movable slider moves along the circular track, the reel releases the containment film, and the containment film can contain the rubber particles, and then the lifting component moves upward again to fully lift the rubber particles in the containment film.

[0089] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0090] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-stage crushing device for rubber sheets used in the production of rubber products, characterized in that: include: The transfer rack comprises a roller plate, a middle rod body and a storage rack. The bottom end of the middle rod body is vertically damped and rotatably connected to the roller plate. Multiple groups of storage racks are symmetrically arranged on both sides of the middle rod body. The storage racks are U-shaped and arranged horizontally. The openings of the storage racks face outward. An inner baffle is vertically arranged on the inner end of the surface of the storage rack. A rubber sheet is placed on the top of the storage rack. The rubber sheet contacts the inner baffle. A docking seat is arranged in the middle of the top end of the middle rod body. The heating furnace body is used to heat the rubber sheets on the transfer rack to facilitate subsequent multi-stage slitting. A conveying track for conveying the transfer rack is installed inside the heating furnace body; the outlet end of the heating furnace body is the unloading position; A lifting assembly is installed outside the unloading position, and is used to sequentially lift rubber sheets on a plurality of racks from bottom to top, and a plurality of heated rubber sheets are stacked and placed on the lifting assembly; The frame positioning assembly is placed above the unloading position, the frame positioning assembly is connected with the docking seat, and the frame positioning assembly is used to drive the middle rod body to rotate; A primary crushing assembly is installed on the top side of the lifting assembly, and is used to transversely cut the rubber sheets stacked on the lifting assembly to obtain rubber strips; A secondary crushing assembly, the top of which is connected to the primary crushing assembly, and the secondary crushing assembly is used to cut the rubber strips longitudinally to obtain rubber particles; An aggregate seat, one side of the top of which is a material guide slope, and the other side of the top is an aggregate trough, the aggregate trough is located at the bottom of the material guide slope, and the material guide slope is located below the secondary crushing assembly; A cooling material guide assembly is installed above the material collection trough. The cooling material guide component includes a middle cylinder, a lifting component, and a spiral material guide track. The middle cylinder is installed above the material collection trough at intervals. Both ends of the middle cylinder are open structures. The outer wall of the middle cylinder is provided with a spiral material guide track. An air guide cavity is opened in the shell of the middle cylinder. The air guide cavity is provided with exhaust holes along the spiral material guide track. The air guide cavity is connected to a cold air blower. The exhaust holes are used to discharge cold air to the spiral material guide track to reduce the temperature of the rubber particles. The lifting component is vertically slidably installed inside the middle cylinder. The lifting component is used to lift the rubber particles in the material collection trough to the top feeding end of the spiral material guide track.

2. The multi-stage crushing device for rubber sheets used in the production of rubber products according to claim 1, characterized in that: An exhaust slot is provided on the bottom surface of the storage rack, and an air guide component is installed inside the middle rod body. The air guide component is connected with each storage rack, and the air guide component is used to blow hot air to the exhaust slot, and the exhaust slot is used to discharge the hot air downward, so that the bottom of the rubber sheet on the storage rack is open.

3. A multi-stage crushing device for rubber sheets used in the production of rubber products according to claim 2, characterized in that: The air guide component includes a middle air guide pipe, an air inlet interface is opened on the top surface of the middle rod body, the top end of the middle air guide pipe is connected to the air inlet interface, the side wall of the middle air guide pipe is connected to the storage rack through a branch pipe, and a flow valve is installed on the branch pipe. The flow valve is used to control the exhaust volume of the exhaust groove. The exhaust volume of the storage rack increases from bottom to top, so that the bottom opening width of the rubber sheet increases successively.

4. A multi-stage crushing device for rubber sheets used in the production of rubber products according to claim 3, characterized in that: The frame positioning assembly includes a fan box, a hanging plate, a first drive rod, an assembly plate and an air guide joint. The fan box is installed on the top of the heating furnace body. One end of the hanging plate is arranged on the top surface of the fan box, and the other end is provided with a first switching motor on the bottom surface. The output end of the first switching motor is connected to the first drive rod. The bottom end of the first drive rod is provided with an assembly plate. The bottom surface of the assembly plate is provided with an air guide joint. The air guide joint is inserted into the air inlet interface, and the air guide joint is connected to the fan box; the outer wall of the assembly plate is provided with convex plates distributed in a circular array, and the interior of the docking seat is provided with a docking groove adapted to the convex plate.

5. The multi-stage crushing device for rubber sheets used in the production of rubber products according to claim 4, characterized in that: The lifting assembly includes a second switching motor, a bottom plate, a middle guide plate and a top plate. The bottom surface of the bottom plate is provided with a second switching motor, a middle guide plate is vertically provided in the middle of the top surface of the bottom plate, and a first screw rod is symmetrically provided on the surface of the bottom plate. The top ends of the middle guide plate and the first screw rod are both installed on the top plate. The outer wall of each group of first screw rods is threadedly fitted with a lifting block, and a lifting rod is provided at the outer end of the lifting block; the lifting rod passes through the middle notch of each shelf from bottom to top in turn to remove the rubber sheets on each shelf at one time, so that the rubber sheets are stacked on the lifting rod.

6. A multi-stage crushing device for rubber sheets used in the production of rubber products according to claim 5, characterized in that: The primary crushing assembly includes a side guard, a cross bar, a vertical bar, a material guide hose and a conveying roller. The side guard has a U-shaped cross-section when viewed from above, and its opening faces the material lifting assembly. The side guard is slidably arranged between two sets of cross bars. A pad is provided on one side of the inner wall of the side guard, and a second drive rod is horizontally arranged on the side wall of the pad. The output end of the second drive rod is connected to the conveying roller, which is inserted into the stacked rubber sheets. A guide roller is embedded in the interior of the pad at a position relative to the conveying roller. A first shearing knife is installed at the bottom of the interior of the side guard, and the first shearing knife is used to cross-cut the rubber sheet; the bottom of the side guard is connected to the material guide hose; when the material lifting assembly rotates and switches, the side guards move outward and are staggered.

7. A multi-stage crushing device for rubber sheets used in the production of rubber products according to claim 6, characterized in that: The secondary crushing assembly includes a crushing box, the top of which is connected to a material guide hose, a material guide oblique block and a material guide vertical block are symmetrically arranged inside the crushing box, a material discharge channel is formed between the material guide oblique block and the material guide vertical block, a receiving groove is provided in the middle of the material guide vertical block, a third driving rod is installed inside the receiving groove, an output end of the third driving rod is connected to a second shearing knife, and the second shearing knife longitudinally cuts the rubber strip; a scraper frame is stopped at the open end of the receiving groove, a plurality of scraper rods for cleaning the second shearing knife are arranged inside the scraper frame, and both ends of the scraper frame are installed on the side of the material guide vertical block through elastic guide columns.

8. The multi-stage crushing device for rubber sheets used in the production of rubber products according to claim 7, characterized in that: The lifting component includes an outer ring plate, a rubber pad, a connecting ring, a swing arm and a second screw. The second screw is symmetrically arranged in the middle cylinder. The bottom end of the second screw extends into the collecting trough. The outer ring plate is threadedly mounted on the second screw. A rubber pad is arranged inside the outer ring plate. One end of the swing arm is rotatably connected to the bottom surface of the outer ring plate and a torsion spring is installed at the rotating connection. The other end of the swing arm is connected to the rubber pad. A connecting ring is arranged in the middle of the surface of the rubber pad. The rubber pad is funnel-shaped when lifting materials. When the rubber pad moves to the top of the middle cylinder, the rubber pad turns into a cone.

9. A multi-stage crushing device for rubber sheets used in the production of rubber products according to claim 8, characterized in that: The top end of the middle cylinder is connected to the top box body through a plurality of side support rods, and adjacent side support rods are arranged at intervals. A suspension rod is provided in the middle of the top box body, and a hook is provided at the bottom end of the suspension rod. The hook is used to cooperate with the connecting ring to make the lifting rubber pad convexly deformed.

10. A multi-stage crushing device for rubber sheets used in the production of rubber products according to claim 9, characterized in that: The outer end of the collection seat is provided with a side fixing seat, which is fixedly connected to the middle cylinder. A storage groove is opened on the inner wall of the side fixing seat. A gathering component is installed inside the storage groove. The gathering component includes an annular track, a movable slider, a winding wheel and a retaining film. The annular track is arranged on the outer wall of the bottom end of the middle cylinder. A movable slider is slidably installed on the bottom surface of the annular track. A winding wheel is rotatably installed on the bottom end of the movable slider. A retaining film is wrapped around the outer wall of the winding wheel. The top end of the retaining film is fixedly connected to the storage groove. When the movable slider moves along the annular track, the retaining film gathers the rubber particles in the collection groove to prevent the rubber particles from dispersing when the lifting component is lifted.

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