Glass fiber double-layer tank and special mold thereof

Abstract

The invention belongs to the technical field of double-layer tanks, and particularly relates to a glass fiber double-layer tank and a special mold thereof, which comprises an inner tank and an outer tank adhered to the outer surface of the inner tank, a first inner cloth layer, a first inner line layer, a second inner cloth layer, an inner reinforcing layer, a third inner cloth layer, a second inner line layer, a fourth inner cloth layer, a third inner line layer and an inner bonding layer are sequentially bonded in the inner tank from inside to outside in a dipping mode. According to the glass fiber double-layer tank and the special mold thereof, through combination of multiple layers of different materials, the strength and rigidity of the tank body are remarkably improved. Particularly, due to the use of the carbon nanofibers and the carbon fiber cloth, the carbon nanofibers and the carbon fiber cloth have extremely high strength and modulus and can effectively resist external force impact and pressure; due to the design and material selection of the glass fiber double-layer tank, the glass fiber double-layer tank has the remarkable advantages in the aspects of strength, rigidity, corrosion resistance, heat insulation, multifunctionality, light weight, environment friendliness, permeation prevention and the like.

Description

Technical Field

[0001] The invention relates to the technical field of double-layer tanks, in particular to a double-layer tank made of glass fiber and a special mold thereof. Background Art

[0002] In the current chemical, petroleum and food storage industries, there is an increasing demand for high-performance, corrosion-resistant double-layer tanks. However, the traditional double-layer tank manufacturing process has the following background technical problems:

[0003] First, in the existing double-layer tank manufacturing process, the forming, bonding and cutting of the inner tank and the outer tank mostly rely on manual operations, which is not only inefficient, but also difficult to ensure the accuracy and consistency of the tank size. Secondly, manual grinding of the inner wall can easily cause the surface of the tank to be uneven, affecting the sealing and aesthetics of the tank. Furthermore, the processing accuracy of the cutting and plug-in matching grooves at the bottom of the tank is not high, which makes it easy for gaps to appear when the two half tanks are combined, affecting the overall performance and storage safety of the tank. In addition, the existing manufacturing equipment lacks flexibility and adaptability, and it is difficult to meet the customized production needs of double-layer tanks of different sizes and shapes. Therefore, a fiberglass double-layer tank and a special mold for it are needed. Summary of the invention

[0004] Based on the existing technical problems, the present invention provides a glass fiber double-layer tank and a special mold thereof.

[0005] The present invention provides a double-layer tank made of glass fiber, comprising an inner tank and an outer tank bonded to the outer surface of the inner tank, wherein the inner tank is bonded from the inside to the outside by a first inner cloth layer, a first inner wire layer, a second inner cloth layer, an inner reinforcement layer, a third inner cloth layer, a second inner wire layer, a fourth inner cloth layer, a third inner wire layer and an inner bonding layer impregnated therein in sequence.

[0006] The outer tank is bonded from the inside to the outside in sequence by the first outer fabric layer, the first outer wire layer, the second outer fabric layer, the second outer wire layer, the outer reinforcement layer, the third outer fabric layer, the third outer wire layer, the fourth outer fabric layer and the outer cured anti-corrosion layer.

[0007] Preferably, the material of the first inner cloth layer is glass fiber cloth impregnated with epoxy resin, the material of the first inner line layer is aramid fiber yarn, the material of the second inner cloth layer is bamboo fiber woven cloth, the material of the inner reinforcement layer is carbon nanofiber yarn, the material of the third inner cloth layer is carbon fiber cloth, the material of the second inner line layer is bio-based glass fiber, the material of the fourth inner cloth layer is resin fiber cloth, the material of the third inner line layer is flax spinning, and the material of the inner bonding layer is polyurethane adhesive.

[0008] The material of the first outer cloth layer is polyetheretherketone fiber cloth, the material of the first outer line layer is cellulose ester fiber filament, the material of the second outer cloth layer is nylon yarn, the material of the second outer line layer is glass fiber filament, the material of the outer reinforcement layer is basalt fiber filament, the material of the third outer cloth layer is wool fiber cloth, the material of the third outer line layer is straw fiber filament, the material of the fourth outer cloth layer is soft cloth fiber cloth, and the material of the outer cured anti-corrosion layer is rubber.

[0009] The present invention proposes a special mold for a double-layer tank made of fiberglass. The special mold includes support legs for support. The tops of multiple support legs are fixedly installed with mold base plates. The top of the mold base plate is respectively provided with a molding feeding mechanism, a barrel diameter adjustment mechanism, a barrel wall grinding mechanism, a matching cutting mechanism and a molding auxiliary mechanism.

[0010] The forming and feeding mechanism realizes the action of reciprocatingly transporting and feeding various threads in a vertical direction.

[0011] The barrel diameter adjustment mechanism realizes the action of automatically adjusting the barrel diameter according to the designed barrel diameter during the double-layer can molding.

[0012] The barrel wall grinding mechanism realizes the action of grinding the inner wall of the double-layer can smoothly after it is formed.

[0013] The matching cutting mechanism realizes the action of automatically cutting the plug-in matching groove at the bottom end after the semi-double-layer can is formed, which is convenient for the later plug-in combination of the two semi-double-layer cans to form a whole can.

[0014] The forming auxiliary mechanism realizes the action of simultaneously squeezing and limiting the auxiliary ends of the top and bottom ends in the forming and manufacturing of the double-layer can.

[0015] Preferably, the molding and feeding mechanism includes L-shaped support plates installed at both ends of the top of the mold base plate, and the two L-shaped support plates are symmetrically arranged. A driving motor is fixedly installed on the top of the L-shaped support plate, and a driving screw is fixedly installed on the output end of the driving motor through a coupling, and the bottom end of the driving screw is rotatably connected to the top of the mold base plate through a bearing.

[0016] Preferably, the arc surface of the driving screw is threadedly connected to a driving block, one side surface of the driving block is slidably inserted into the surface of the L-shaped support plate, the top and bottom ends of one side of the driving block are fixedly installed with bearing seats, the relative surfaces of the two bearing seats are rotatably connected to reels through bearings, and winding rollers are limitedly installed on the arc surface of the reel, and a variety of silk threads and a variety of cloth strips are respectively wound and connected with a plurality of winding rollers.

[0017] Preferably, the barrel diameter adjustment mechanism includes a rotating motor installed at the bottom of the mold base plate, and the output end of the rotating motor is fixedly installed with a rotating shaft through a coupling, the top end of the rotating shaft passes through and extends to the top of the mold base plate, and the surface of the rotating shaft located at the top of the mold base plate is square in shape, and a triangular base plate is fixedly installed on the square top of the rotating shaft, and the triangular top of the triangular base plate is fixedly installed with a limiting support rod, and the tops of the three limiting support rods are fixedly installed with a triangular top plate, and the middle surfaces of the three limiting support rods are fixedly installed with a triangular limiting mounting plate.

[0018] Preferably, a power motor is fixedly installed on the relative surfaces of the two triangular limit mounting plates, and an adjusting screw is fixedly installed on the output top of the power motor. The top of the adjusting screw is rotatably connected to the bottom of the triangular top plate through a bearing, and the top center of the triangular bottom plate and the bottom center of the relatively arranged triangular limit mounting plate are rotatably connected to a driven screw through a bearing. The driven screw and the adjusting screw are both fixedly installed with a first gear close to the arc surface of the triangular limit mounting plate, and the relative surfaces of the two triangular limit mounting plates are also rotatably connected with a gear shaft through a bearing, and the two ends of the gear shaft are respectively located at the top and bottom of the two triangular limit mounting plates, and a second gear is fixedly installed on the top and bottom ends of the gear shaft, and the gear teeth of each second gear are meshed with the tooth grooves of each correspondingly connected first gear.

[0019] The arc surface of the adjusting screw and the arc surface of the driven screw are both threadedly connected with a triangular movable screw sleeve, the three end surfaces of the triangular movable screw sleeve are rotatably connected to the first connecting rod through a pin shaft, the three end surfaces of the triangular limit mounting plate are rotatably connected to the second connecting rod through a pin shaft, one end of the first connecting rod and the middle part of the second connecting rod are rotatably connected to the pin shaft, the end surfaces of the two second connecting rods distributed up and down on each side are rotatably connected to an adapter seat through a pin shaft, a semi-arc mold cavity plate is fixedly installed on the surface of the adapter seat at the bottom, a vertical slide rail is fixedly installed on the arc inner wall of the semi-arc mold cavity plate, and the surface of the vertical slide rail is slidably plugged into the surface of the adapter seat at the top.

[0020] The top of the semi-arc cavity plate is hinged with a conical arc cavity plate by a hinge, and an adjusting motor is fixedly installed on the top of the triangular top plate. A rotating screw is fixedly installed on the output top of the adjusting motor through a coupling, and a limited end is fixedly installed on the top of the rotating screw. A sliding adjustment plate is threadedly connected to the circular arc surface of the rotating screw, and the three end surfaces of the sliding adjustment plate are rotatably connected to a third connecting rod through a pin shaft, and one end of the third connecting rod is rotatably connected to the inner wall of the conical arc cavity plate through a pin shaft.

[0021] Preferably, the barrel wall grinding mechanism includes a U-shaped connecting rod, the top and bottom ends of the U-shaped connecting rod are fixedly mounted on the surface of the triangular top plate and the surface of the triangular bottom plate respectively, a telescopic rod is slidably inserted into the surface of the U-shaped connecting rod, a vertical scraper is fixedly mounted on one end of a plurality of the telescopic rods, a first electric telescopic rod is also fixedly mounted on the middle of the vertical surface of the U-shaped connecting rod, the telescopic end of the first electric telescopic rod is fixedly mounted on the surface of the vertical scraper, an arc-shaped scraper is hingedly mounted on the top of the vertical scraper through a hinge, a second electric telescopic rod is hingedly mounted on the top of the U-shaped connecting rod, and the telescopic top end of the second electric telescopic rod is hingedly mounted on the surface of one end of the arc-shaped scraper.

[0022] Preferably, the molding auxiliary mechanism includes a supporting base plate, and a first spring is fixedly installed on the top of the mold base plate. The top of the first spring is fixedly installed on the bottom of the supporting base plate, the middle part of the supporting base plate is slidably connected with the four surfaces of the rotating shaft, and the supporting base plate is located at the bottom of the semi-arc mold cavity plate.

[0023] A connecting vertical plate is also fixedly installed on one side of the top of the mold bottom plate, and the connecting vertical plate is in an L-shape. Arc-shaped reinforcing plates are fixedly installed on both ends of the connecting vertical plates, and one end of the two arc-shaped reinforcing plates is respectively fixedly installed on the surfaces of the two L-shaped support plates, and the top ends of the two L-shaped support plates and the top ends of the connecting vertical plates are respectively connected to the limiting top plate by screw threads, and an auxiliary sliding rod is slidably inserted into the middle surface of the limiting top plate, and a plug cavity plate is fixedly installed on the bottom end of the auxiliary sliding rod, and a second spring is also fixedly installed on the top of the plug cavity plate, and the top end of the second spring is fixedly installed on the bottom of the connecting vertical plate, and the second spring is also movably sleeved on the surface of the auxiliary sliding rod.

[0024] Preferably, the cooperating cutting mechanism includes a cutting cylinder, three of the cutting cylinders are installed on the top of the supporting base plate, and the three cutting cylinders are distributed in a circular array. The telescopic end of the cutting cylinder is fixedly installed with an arc-shaped cutting blade, and the top of the supporting base plate is also fixedly installed with an arc-shaped limit seat, and the bottom of the supporting base plate is fixedly installed with a blocking mounting block, and the top of the blocking mounting block and the top of the supporting base plate are both provided with a blocking adjustment groove, and a blocking plate is slidably inserted into the inner wall of the blocking adjustment groove, and the inner bottom wall of the blocking adjustment groove is rotatably connected with an adjusting shaft through a bearing, and the arc surface of the adjusting shaft is threadedly connected to the surface of the blocking plate.

[0025] The beneficial effects of the present invention are:

[0026] 1. Through the combination of multiple layers of different materials, the strength and rigidity of the tank body have been significantly improved. In particular, the use of carbon nanofiber filaments and carbon fiber cloth has extremely high strength and modulus, and can effectively resist external impact and pressure; the design and material selection of this glass fiber double-layer tank make it have significant advantages in strength, rigidity, corrosion resistance, heat insulation, versatility, lightness, environmental protection and impermeability, and is suitable for the storage of liquids, gases and solid substances in various harsh environments.

[0027] 2. The molding and feeding mechanism can accurately control the delivery of glass fiber materials to ensure uniform distribution of materials, thereby ensuring uniform wall thickness of the tank body and improving the overall performance of the tank body; it allows the diameter of the tank body to be adjusted as needed during the production process, so that the same set of molds can produce tanks of different specifications, increasing the applicability and flexibility of the mold; after the tank body is formed, the tank wall can be automatically polished to ensure that the tank body surface is smooth and burr-free, improving the appearance quality and performance of the tank body; the automatic cutting and plug-in matching groove facilitates the rapid and accurate combination of two and a half double-layer tanks, improving production efficiency and combination quality; by integrating multiple functions, the conversion and adjustment time in the production process is reduced, and the automation and efficiency of the production line are improved; molds with a high degree of automation reduce the need for manual operation, reduce the labor intensity of workers, and improve the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a double-layer tank made of glass fiber and its special mold;

[0029] Figure 2 It is a three-dimensional diagram of a double-layer tank made of fiberglass and a molding auxiliary mechanism of a special mold thereof;

[0030] Figure 3 It is a three-dimensional diagram of the structure of a glass fiber double-layer tank and a conical arc-shaped cavity plate of a special mold;

[0031] Figure 4 It is a three-dimensional exploded view of a glass fiber double-layer tank and its special mold matching cutting mechanism;

[0032] Figure 5 It is a three-dimensional diagram of the semi-arc cavity plate structure of a double-layer tank made of fiberglass and its special mold;

[0033] Figure 6 A three-dimensional diagram of a barrel wall grinding mechanism of a glass fiber double-layer tank and its special mold;

[0034] Figure 7 A three-dimensional diagram of a glass fiber double-layer tank and a barrel diameter adjustment mechanism of a special mold thereof;

[0035] Figure 8The present invention is a cross-sectional view of the inner tank structure of a double-layer tank made of fiberglass and its special mold.

[0036] In the figure: 1, inner tank; 11, first inner fabric layer; 12, first inner line layer; 13, second inner fabric layer; 14, inner reinforcement layer; 15, third inner fabric layer; 16, second inner line layer; 17, fourth inner fabric layer; 18, third inner line layer; 19, inner bonding layer; 2, outer tank; 21, first outer fabric layer; 22, first outer line layer; 23, second outer fabric layer; 24, second outer line layer; 25, outer reinforcement layer; 26, third outer fabric layer; 27, third outer line layer; 28, fourth outer fabric layer; 29, outer curing layer Anti-corrosion layer; 3. Support legs; 4. Mold bottom plate; 5. Forming feeding mechanism; 51. L-shaped support plate; 52. Driving motor; 53. Driving screw; 54. Driving block; 55. Bearing seat; 56. Reel; 57. Winding roller; 6. Barrel diameter adjustment mechanism; 61. Rotating motor; 62. Rotating shaft; 63. Triangular bottom plate; 64. Limiting support rod; 65. Triangular top plate; 66. Triangular limiting mounting plate; 67. Power motor; 68. Adjusting screw; 69. Driven screw; 610. First gear ;611, gear shaft;612, second gear;613, triangular movable screw sleeve;614, first connecting rod;615, second connecting rod;616, adapter;617, semi-arc cavity plate;618, vertical slide rail;619, conical arc cavity plate;620, adjustment motor;621, rotating screw;622, limit end;623, sliding adjustment plate;624, third connecting rod;7, barrel wall grinding mechanism;71, U-shaped connecting rod;72, telescopic rod;73, vertical scraper;74, The first electric telescopic rod; 75, the arc scraper; 76, the second electric telescopic rod; 8, the cooperating cutting mechanism; 81, the cutting cylinder; 82, the arc cutting blade; 83, the arc limiting seat; 84, the blocking mounting block; 85, the blocking adjustment groove; 86, the blocking plate; 87, the adjusting shaft; 9, the forming auxiliary mechanism; 91, the supporting bottom plate; 92, the first spring; 93, the connecting vertical plate; 94, the arc reinforcing plate; 95, the limiting top plate; 96, the auxiliary sliding rod; 97, the plugging cavity plate; 98, the second spring. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] Embodiment 1

[0039] Reference Figure 8A double-layer tank made of glass fiber includes an inner tank 1 and an outer tank 2 bonded to the outer surface of the inner tank 1. The inner tank 1 is bonded from the inside to the outside by a first inner cloth layer 11, a first inner wire layer 12, a second inner cloth layer 13, an inner reinforcement layer 14, a third inner cloth layer 15, a second inner wire layer 16, a fourth inner cloth layer 17, a third inner wire layer 18 and an inner bonding layer 19 impregnated therein in sequence.

[0040] The first inner cloth layer 11 is made of glass fiber cloth impregnated with epoxy resin, the first inner line layer 12 is made of aramid fiber yarn, the second inner cloth layer 13 is made of bamboo fiber woven cloth, the inner reinforcement layer 14 is made of carbon nanofiber yarn, the third inner cloth layer 15 is made of carbon fiber cloth, the second inner line layer 16 is made of bio-based glass fiber, the fourth inner cloth layer 17 is made of resin fiber cloth, the third inner line layer 18 is made of flax spinning, and the inner bonding layer 19 is made of polyurethane adhesive.

[0041] Specifically, through the combination of multiple layers of different materials, the strength and rigidity of the tank body are significantly improved. In particular, the use of carbon nanofiber filaments and carbon fiber cloth has extremely high strength and modulus, and can effectively resist external impact and pressure; the design and material selection of this glass fiber double-layer tank make it have significant advantages in strength, rigidity, corrosion resistance, heat insulation, versatility, lightness, environmental protection and impermeability, and is suitable for the storage of liquids, gases and solid substances in various harsh environments.

[0042] The outer tank 2 is bonded with a first outer cloth layer 21, a first outer thread layer 22, a second outer cloth layer 23, a second outer thread layer 24, an outer reinforcement layer 25, a third outer cloth layer 26, a third outer thread layer 27, a fourth outer cloth layer 28 and an outer cured anti-corrosion layer 29 in sequence from the inside to the outside; the first outer cloth layer 21 is made of polyetheretherketone fiber cloth, the first outer thread layer 22 is made of cellulose ester fiber yarn, the second outer cloth layer 23 is made of nylon yarn, the second outer thread layer 24 is made of glass fiber yarn, the outer reinforcement layer 25 is made of basalt fiber yarn, the third outer cloth layer 26 is made of wool fiber cloth, the third outer thread layer 27 is made of straw fiber yarn, the fourth outer cloth layer 28 is made of soft cloth fiber cloth, and the outer cured anti-corrosion layer 29 is made of rubber.

[0043] Specifically implemented in this way, through the combination of cloth layers and thread layers of different materials, the mechanical strength and durability of the outer tank 2 are improved. For example, polyetheretherketone fiber cloth and basalt fiber filaments have high strength and wear resistance; polyetheretherketone fiber cloth and rubber and other materials have good chemical corrosion resistance, can resist the erosion of various chemical substances, and are suitable for storing a variety of chemicals; the design of multi-layer composite materials, especially the rubber material of the outer cured anti-corrosion layer 29, can effectively prevent external moisture, gas or other substances from penetrating into the tank body; the design and material selection of the outer tank 2 make it excellent in mechanical properties, chemical resistance, thermal insulation, environmental adaptability, impermeability, weather resistance, lightweight, flexibility, easy maintenance and aesthetics, and is suitable for the storage and transportation of liquids, gases and solid substances in various environments and conditions.

[0044] Embodiment 2

[0045] Reference Figure 1-Figure 7 A special mold for a double-layer tank made of fiberglass, the special mold includes support legs 3 for support, the tops of multiple support legs 3 are fixedly installed with mold base plates 4, the top of the mold base plate 4 is respectively provided with a molding feeding mechanism 5, a barrel diameter adjustment mechanism 6, a barrel wall grinding mechanism 7, a matching cutting mechanism 8 and a molding auxiliary mechanism 9.

[0046] In order to transport various silk threads back and forth in a vertical direction, a forming and feeding mechanism 5 is provided, which includes L-shaped support plates 51 installed at both ends of the top of the mold base plate 4. The two L-shaped support plates 51 are symmetrically arranged. A driving motor 52 is fixedly installed on the top of the L-shaped support plate 51. A driving screw 53 is fixedly installed on the output end of the driving motor 52 through a coupling. The bottom end of the driving screw 53 is rotatably connected to the top of the mold base plate 4 through a bearing.

[0047] Specifically, by realizing the reciprocating transportation of multiple wires in the vertical direction, the distribution and stacking of materials can be accurately controlled, thereby ensuring the uniformity and consistency of the can body molding; by cooperating with the drive motor 52 and the screw, the feeding speed and feeding amount can be accurately controlled to ensure the uniformity of the can body wall thickness; the reciprocating motion in the vertical direction can quickly and evenly distribute the wires, thereby improving production efficiency.

[0048] The arc surface of the driving screw 53 is threadedly connected to a driving block 54, and one side surface of the driving block 54 is slidably plugged into the surface of the L-shaped support plate 51. Bearing seats 55 are fixedly installed on the top and bottom ends of one side of the driving block 54. The relative surfaces of the two bearing seats 55 are rotatably connected to reels 56 through bearings. Winding rollers 57 are limitedly installed on the arc surface of the reel 56, and a variety of silk threads and a variety of cloth strips are respectively wound and connected to multiple winding rollers 57.

[0049] Specifically implemented in this way, the arc surface thread of the driving screw 53 is connected to the driving block 54, which can smoothly transmit the movement and ensure the stability of the driving block 54 during the movement; a variety of silk threads and cloth strips can be wound through the winding roller 57 to meet the needs of different materials and specifications, thereby improving the versatility of the equipment; the arc surface of the reel 56 is limitedly installed with a winding roller 57, and this design can ensure that the silk threads and cloth strips remain uniform and stable during the winding process.

[0050] In order to realize the action of automatic adjustment according to the designed barrel diameter during double-layer can molding; a barrel diameter adjustment mechanism 6 is set, which includes a rotating motor 61 installed at the bottom of the mold base plate 4, and the output end of the rotating motor 61 is fixedly installed with a rotating shaft 62 through a coupling. The top of the rotating shaft 62 passes through and extends to the top of the mold base plate 4, and the surface of the rotating shaft 62 located at the top of the mold base plate 4 is square in shape, and a triangular base plate 63 is fixedly installed on the square top of the rotating shaft 62, and the triangular top of the triangular base plate 63 is fixedly installed with a limiting support rod 64, and the top of the three limiting support rods 64 is fixedly installed with a triangular top plate 65, and the middle surface of the three limiting support rods 64 is fixedly installed with a triangular limiting mounting plate 66.

[0051] Specifically implemented in this way, the rotating shaft 62 driven by the rotating motor 61 can realize automatic adjustment of the mold barrel diameter to meet the molding requirements of double-layer cans of different sizes; the use of the rotating motor 61 automates the barrel diameter adjustment process, and the coupling ensures that the power transmission between the motor and the rotating shaft 62 is smooth and reliable.

[0052] A power motor 67 is fixedly installed on the relative surfaces of the two triangular limit mounting plates 66, and an adjusting screw 68 is fixedly installed on the output top of the power motor 67. The top of the adjusting screw 68 is rotatably connected to the bottom of the triangular top plate 65 through a bearing. The top center of the triangular bottom plate 63 and the bottom center of the relatively arranged triangular limit mounting plate 66 are rotatably connected to a driven screw 69 through a bearing. The driven screw 69 and the adjusting screw 68 are both fixedly installed with a first gear 610 close to the arc surface of the triangular limit mounting plate 66. The relative surfaces of the two triangular limit mounting plates 66 are also rotatably connected with a gear shaft 611 through a bearing. The two ends of the gear shaft 611 are respectively located at the top and bottom of the two triangular limit mounting plates 66, and the top and bottom ends of the gear shaft 611 are fixedly installed with a second gear 612, and the gear teeth of each second gear 612 are meshed with the tooth grooves of each correspondingly connected first gear 610.

[0053] Specifically implemented in this way, the setting of the first gear 610 and the second gear 612 forms a gear transmission system, which can realize the transmission and amplification of force, making the barrel diameter adjustment easier and more precise; by using gears and screws, the entire adjustment mechanism has a compact structure, which saves space and facilitates the design and installation of the mold; the design of the barrel diameter adjustment mechanism 6 has significant advantages in realizing automation, precise control, force amplification, synchronous adjustment, compact structure, simple maintenance, reducing manpower and improving stability.

[0054] The arc surface of the adjusting screw 68 and the arc surface of the driven screw 69 are both threadedly connected with a triangular movable screw sleeve 613, the three end surfaces of the triangular movable screw sleeve 613 are rotatably connected with the first connecting rod 614 through a pin shaft, the three end surfaces of the triangular limit mounting plate 66 are rotatably connected with the second connecting rod 615 through a pin shaft, one end of the first connecting rod 614 and the middle part of the second connecting rod 615 are rotatably connected with the pin shaft, the end surfaces of the two second connecting rods 615 distributed up and down on each side are rotatably connected with an adapter seat 616 through a pin shaft, a semi-arc mold cavity plate 617 is fixedly installed on the surface of the bottom adapter seat 616, and a vertical slide rail 618 is fixedly installed on the arc inner wall of the semi-arc mold cavity plate 617, and the surface of the vertical slide rail 618 is slidably plugged into the surface of the top adapter seat 616.

[0055] Specifically implemented in this way, the triangular movable screw sleeve 613 on the adjusting screw 68 and the driven screw 69 can be moved by threaded rotation to achieve precise linear displacement, which is crucial for adjusting the mold barrel diameter; the setting of the first connecting rod 614 and the second connecting rod 615 forms a connecting rod mechanism, which can convert rotational motion into linear motion, making the adjustment of the barrel diameter more flexible; the triangular movable screw sleeve 613 and the connecting rod mechanism ensure the synchronous movement of the mold barrel diameter, avoiding the asymmetry problem during the molding process.

[0056] The top of the semi-arc cavity plate 617 is hinged with a conical arc cavity plate 619 through a hinge, and an adjusting motor 620 is fixedly installed on the top of the triangular top plate 65. A rotating screw 621 is fixedly installed on the output top of the adjusting motor 620 through a coupling, and a limited end 622 is fixedly installed on the top of the rotating screw 621. The circular arc surface of the rotating screw 621 is threadedly connected with a sliding adjustment plate 623. The three end surfaces of the sliding adjustment plate 623 are rotatably connected to the third connecting rod 624 through a pin shaft, and one end of the third connecting rod 624 is rotatably connected to the inner wall of the conical arc cavity plate 619 through a pin shaft.

[0057] Specifically, by hingedly connecting the semi-arc cavity plate 617 with the hinge, the barrel diameter of the mold can be adjusted to a more complex shape to meet the molding requirements of cans of different shapes; the sliding adjustment plate 623 is connected to the rotating screw 621 through a thread to achieve precise linear adjustment, and when used in conjunction with a connecting rod mechanism, fine adjustment of the barrel diameter of the mold can be achieved; the design of the conical arc cavity plate 619 enables the mold to adapt to the molding of cans of different tapers and curvatures, thereby improving the applicability of the equipment.

[0058] In order to realize the action of polishing the inner wall of the double-layer can smoothly after forming; a barrel wall polishing mechanism 7 is set, which includes a U-shaped connecting rod 71. The top and bottom ends of the U-shaped connecting rod 71 are fixedly installed on the surface of the triangular top plate 65 and the surface of the triangular bottom plate 63 respectively. A telescopic rod 72 is slidably inserted on the surface of the U-shaped connecting rod 71, and one end of each of the multiple telescopic rods 72 is fixedly installed with a vertical scraper 73. A first electric telescopic rod 74 is also fixedly installed in the middle of the vertical surface of the U-shaped connecting rod 71. The telescopic end of the first electric telescopic rod 74 is fixedly installed on the surface of the vertical scraper 73. The top of the vertical scraper 73 is hingedly installed with an arc scraper 75 through a hinge. The top of the U-shaped connecting rod 71 is hingedly installed with a second electric telescopic rod 76. The telescopic top of the second electric telescopic rod 76 is hingedly installed with one end surface of the arc scraper 75.

[0059] Specifically, as a supporting structure, the U-shaped connecting rod 71 can firmly connect the triangular top plate 65 and the triangular bottom plate 63, providing a stable operating platform for the grinding mechanism; the design of the telescopic rod 72 allows the vertical scraper 73 to flexibly adjust its position to meet the grinding needs of the inner wall of tanks of different sizes; the use of the electric telescopic rod 72 realizes the automatic extension and retraction of the vertical scraper 73, improves the grinding efficiency, and reduces manual operation; the design of the arc scraper 75 can better adapt to the curved surface of the inner wall of the tank, ensuring uniform and smooth grinding; the introduction of the electric telescopic rod 72 automates the grinding process, reduces manual labor, and improves production efficiency; through the combined use of multiple vertical scrapers 73 and arc scrapers 75, uniform grinding of the inner wall of the tank can be ensured, improving product quality.

[0060] In order to realize the simultaneous extrusion and limiting auxiliary action of the top and bottom ends in the double-layer can molding and manufacturing; the molding auxiliary mechanism 9 includes a supporting base plate 91, and a first spring 92 is fixedly installed on the top of the mold base plate 4. The top of the first spring 92 is fixedly installed on the bottom of the supporting base plate 91, and the middle part of the supporting base plate 91 is slidably plugged with the four surfaces of the rotating shaft 62, and the supporting base plate 91 is located at the bottom of the semi-arc mold cavity plate 617.

[0061] Specifically, through the sliding connection between the supporting base plate 91 and the rotating shaft 62, and the action of the first spring 92, the top and bottom ends of the tank body can be squeezed and limited at the same time during the molding process, thereby ensuring the accuracy and symmetry of the tank body molding; the first spring 92 can provide uniform force, so that the supporting base plate 91 can evenly apply pressure to the bottom of the tank body, which helps to prevent deformation during the molding process.

[0062] A connecting vertical plate 93 is also fixedly installed on one side of the top of the mold bottom plate 4. The connecting vertical plate 93 is L-shaped. Arc-shaped reinforcing plates 94 are fixedly installed at both ends of the connecting vertical plate 93. One end of the two arc-shaped reinforcing plates 94 is respectively fixedly installed on the surface of the two L-shaped support plates 51. The top ends of the two L-shaped support plates 51 and the top ends of the connecting vertical plates 93 are both connected to the limiting top plate 95 by screw threads. An auxiliary sliding rod 96 is slidably inserted on the middle surface of the limiting top plate 95. A plugging mold cavity plate 97 is fixedly installed on the bottom end of the auxiliary sliding rod 96. A second spring 98 is also fixedly installed on the top of the plugging mold cavity plate 97. The top end of the second spring 98 is fixedly installed on the bottom of the connecting vertical plate 93, and the second spring 98 is also movably sleeved on the surface of the auxiliary sliding rod 96.

[0063] Specifically implemented in this way, the design of the limiting top plate 95 and the auxiliary sliding rod 96 allows precise control of the opening size of the mold, thereby controlling the molding size of the tank body; the use of the second spring 98 reduces manual intervention in the molding process and improves production efficiency; the mold design has significant advantages in improving structural stability, evenly distributing pressure, precise limiting, improving molding quality, achieving automation and flexibility, reducing manual intervention, strong adaptability, easy maintenance and extending mold life, and is very suitable for the molding and manufacturing process of glass fiber double-layer tanks.

[0064] In order to realize the action of automatically cutting and plugging the matching groove at the bottom end after the semi-double-layer can is formed, so as to facilitate the action of plugging and combining the two semi-double-layer cans to form a whole can in the later stage; a matching cutting mechanism 8 is set up, including a cutting cylinder 81, and three cutting cylinders 81 are all installed on the top of the supporting base plate 91. The three cutting cylinders 81 are distributed in a ring array, and the telescopic end of the cutting cylinder 81 is fixedly installed with an arc-shaped cutting blade 82, and the top of the supporting base plate 91 is also fixedly installed with an arc-shaped limit seat 83, and the bottom of the supporting base plate 91 is fixedly installed with a blocking mounting block 84, and the top of the blocking mounting block 84 and the top of the supporting base plate 91 are both provided with a blocking adjustment groove 85, and the inner wall of the blocking adjustment groove 85 is slidably plugged with a blocking plate 86, and the inner bottom wall of the blocking adjustment groove 85 is rotatably connected with an adjusting shaft 87 through a bearing, and the arc surface of the adjusting shaft 87 is threadedly connected with the surface of the blocking plate 86.

[0065] Specifically implemented in this way, the use of the cutting cylinder 81 realizes the automation of the cutting action, improves production efficiency, and reduces manual operation; the design of the arc-shaped cutting blade 82 can ensure that the cutting edge of the bottom end of the tank body is neat, which is convenient for subsequent plug-in combination; the automatic cutting plug-in matching groove facilitates the rapid and accurate combination of two semi-double-layer tanks, thereby improving production efficiency and combination quality.

[0066] The forming and feeding mechanism 5 can accurately control the feeding of the glass fiber material to ensure that the material is evenly distributed, thereby ensuring that the wall thickness of the tank body is even and improving the overall performance of the tank body; it allows the diameter of the tank body to be adjusted as needed during the production process, so that the same set of molds can produce tank bodies of different specifications, increasing the applicability and flexibility of the mold; after the tank body is formed, the tank wall can be automatically polished to ensure that the surface of the tank body is smooth and burr-free, thereby improving the appearance quality and performance of the tank body; the automatic cutting and plug-in matching groove facilitates the rapid and accurate combination of two semi-double-layer tanks, thereby improving production efficiency and combination quality; by integrating multiple functions, the conversion and adjustment time in the production process is reduced, and the automation degree and efficiency of the production line are improved; molds with a high degree of automation reduce the need for manual operation, reduce the labor intensity of workers, and improve the working environment.

[0067] Working principle: First, prepare two half tank bodies. When preparing the first half tank body, prepare the inner tank 1 first. In the first step, the power motor 67 drives the adjusting screw 68 to rotate, thereby controlling the first gear 610 mounted on the surface to rotate. Under the meshing with the second gear 612, the adjusting screw 68 and the driven screw 69 are synchronously driven to rotate at the same time, and the two triangular moving screw sleeves 613 are synchronously controlled to move. Under the hinge of the first connecting rod 614 and the second connecting rod 615, the semi-arc mold cavity plate 617 is controlled to move and adjust, thereby the three semi-arc mold cavities are The circular enlargement or reduction adjustment formed by the plate 617 is adjusted to the required inner diameter of the tank body, and then the adjusting motor 620 on the top drives the rotating screw 621 to rotate, so as to realize the swing adjustment of the conical arc cavity plate 619, and then adjust the arc size of the end face of the tank body. After the adjustment, an inverted half-tank body mold is formed, and then under the conditions of the bottom supporting base plate 91 and the top plug cavity plate 97, the three semi-arc cavity plates 617 and the conical arc cavity plate 619 are squeezed respectively to realize the height size positioning of the half-tank body mold.

[0068] In the second step, a release agent is sprayed on the outer surface of the semi-arc cavity plate 617 and the conical arc cavity plate 619 by a spray gun temporarily arranged thereon, and then the rotating motor 61 is operated to drive the half-tank body mold formed by the top of the supporting bottom plate 91 to rotate. When the half-tank body mold rotates, the first inner cloth layer 11 and the first inner line layer 12 on one side are pulled to be wound and connected. When the half-tank body mold is wound and connected as a whole, the inner bonding layer 19 is sprayed by a spray gun to make it bonded; then the second inner cloth layer 13 and the inner reinforcement layer 14 are replaced to continue to be wound and connected, and then the inner bonding layer 19 is sprayed by a spray gun to make it bonded; then the third inner cloth layer 15 and the second inner line layer 16 are replaced to be wound and connected, and then the inner bonding layer 19 is sprayed by a spray gun to make it bonded. Then the fourth inner cloth layer 17 and the third inner line layer 18 are replaced to control their winding connection, and then the anti-corrosion curing layer is sprayed by a spray gun; after curing, the inner tank 1 is formed.

[0069] In the third step, after the inner tank 1 is made, the outer tank 2 is made on its surface again; similarly, the first outer fabric layer 21 and the first outer line layer 22 are controlled to be wound and bonded first, and the second outer fabric layer 23 and the second outer line layer 24 are controlled to be wound and bonded again under the adhesive, and then the outer reinforcement layer 25 and the third outer fabric layer 26, and then the third outer line layer 27 and the fourth outer fabric layer 28 are wound and bonded, and finally the outer cured anti-corrosion layer 29 is cured to form the tank body.

[0070] In the fifth step, after the production of the inner tank 1 and the outer tank 2 is completed, the power motor 67 is reversed to control the reduction of the inner diameter to realize the demoulding operation. After the demoulding is completed, the first electric telescopic rod 74 and the second electric telescopic rod 76 are controlled to extend and move, driving the vertical scraper 73 to contact the inner wall of the inner tank 1, and at the same time controlling the arc scraper 75 to contact the arc inner wall. Under the operation of the rotating motor 61, the vertical scraper 73 and the arc scraper 75 are driven to move in a circular motion, and at the same time, the tank body is supported to prevent the tank body from rotating with it, and the inner wall is scraped and polished under the circular motion of the vertical scraper 73 and the arc scraper 75.

[0071] The sixth step is to control the vertical scraper 73 and the arc scraper 75 to reset after the grinding is completed, and use the adjustment shaft 87 to rotate to control the blocking plate 86 to move upward to block and limit the tank body. At the same time, the cutting cylinder 81 is extended to drive the arc cutting blade 82 to cut the formed tank body to form a notch; after spraying resin on the notch of the two half tank bodies, the half tank bodies are connected, and after the sprayed resin is cured, the open ends of the two half tank bodies are connected in a sealed manner to form a double-layer oil tank made of fiberglass.

[0072] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A double-layer tank made of glass fiber, comprising an inner tank (1) and an outer tank (2) bonded to the outer surface of the inner tank (1), characterized in that: The inner tank (1) is bonded in sequence from the inside to the outside by a first inner fabric layer (11), a first inner thread layer (12), a second inner fabric layer (13), an inner reinforcement layer (14), a third inner fabric layer (15), a second inner thread layer (16), a fourth inner fabric layer (17), a third inner thread layer (18) and an inner bonding layer (19); The outer tank (2) is bonded from the inside to the outside by a first outer fabric layer (21), a first outer thread layer (22), a second outer fabric layer (23), a second outer thread layer (24), an outer reinforcement layer (25), a third outer fabric layer (26), a third outer thread layer (27), a fourth outer fabric layer (28) and an outer cured anti-corrosion layer (29) which are impregnated therein in sequence.

2. A fiberglass double-layer tank according to claim 1, characterized in that: The material of the first inner cloth layer (11) is glass fiber cloth impregnated with epoxy resin, the material of the first inner line layer (12) is aramid fiber yarn, the material of the second inner cloth layer (13) is bamboo fiber woven cloth, the material of the inner reinforcement layer (14) is carbon nanofiber yarn, the material of the third inner cloth layer (15) is carbon fiber cloth, the material of the second inner line layer (16) is bio-based glass fiber, the material of the fourth inner cloth layer (17) is resin fiber cloth, the material of the third inner line layer (18) is spun linen, and the material of the inner bonding layer (19) is polyurethane adhesive; The material of the first outer cloth layer (21) is polyetheretherketone fiber cloth, the material of the first outer thread layer (22) is cellulose ester fiber filaments, the material of the second outer cloth layer (23) is nylon yarn, the material of the second outer thread layer (24) is glass fiber filaments, the material of the outer reinforcement layer (25) is basalt fiber filaments, the material of the third outer cloth layer (26) is wool fiber cloth, the material of the third outer thread layer (27) is straw fiber filaments, the material of the fourth outer cloth layer (28) is soft cloth fiber cloth, and the material of the outer cured anti-corrosion layer (29) is rubber.

3. A special mold for a glass fiber double-layer tank, using a glass fiber double-layer tank as claimed in any one of claims 1 to 2, characterized in that: The special mold comprises supporting legs (3) for supporting, a mold base plate (4) is fixedly mounted on the top of the plurality of supporting legs (3), and a molding feeding mechanism (5), a barrel diameter adjustment mechanism (6), a barrel wall grinding mechanism (7), a matching cutting mechanism (8) and a molding auxiliary mechanism (9) are respectively arranged on the top of the mold base plate (4); The molding and feeding mechanism (5) realizes the action of reciprocatingly transporting and feeding various threads in a vertical direction; The barrel diameter adjustment mechanism (6) realizes the action of automatically adjusting the barrel diameter according to the designed barrel diameter during the double-layer can molding process; The barrel wall grinding mechanism (7) realizes the action of grinding the inner wall of the double-layer can smoothly after it is formed; The matching cutting mechanism (8) realizes the action of automatically cutting the plug-in matching groove at the bottom end after the semi-double-layer can is formed, so as to facilitate the action of plugging and combining the two semi-double-layer cans into a whole can in the later stage; The forming auxiliary mechanism (9) realizes the action of simultaneously extruding and limiting the auxiliary ends of the top and bottom ends in the forming and manufacturing of the double-layer can.

4. A special mold for a glass fiber double-layer tank according to claim 3, characterized in that: The molding feeding mechanism (5) comprises L-shaped support plates (51) mounted at both ends of the top of the mold bottom plate (4), the two L-shaped support plates (51) being symmetrically arranged, a driving motor (52) being fixedly mounted on the top of the L-shaped support plates (51), a driving screw (53) being fixedly mounted on the output end of the driving motor (52) via a coupling, and the bottom end of the driving screw (53) being rotatably connected to the top of the mold bottom plate (4) via a bearing.

5. A special mold for a glass fiber double-layer tank according to claim 4, characterized in that: The arc surface of the driving screw rod (53) is threadedly connected with a driving block (54), and one side surface of the driving block (54) is slidably plugged with the surface of the L-shaped support plate (51). The top and bottom ends of one side of the driving block (54) are fixedly installed with bearing seats (55), and the opposite surfaces of the two bearing seats (55) are rotatably connected with reels (56) through bearings. The arc surface of the reel (56) is limitedly installed with winding rollers (57), and a variety of silk threads and a variety of cloth strips are respectively wound and connected with a plurality of winding rollers (57).

6. The special mold for a glass fiber double-layer tank according to claim 4, characterized in that: The barrel diameter adjustment mechanism (6) comprises a rotating motor (61) mounted at the bottom of the mold base plate (4); a rotating shaft (62) is fixedly mounted on the output end of the rotating motor (61) via a coupling; the top end of the rotating shaft (62) penetrates and extends to the top of the mold base plate (4); and the surface of the rotating shaft (62) located at the top of the mold base plate (4) is square in shape; a triangular base plate (63) is fixedly mounted on the square top of the rotating shaft (62); a limiting support rod (64) is fixedly mounted on the triangular top of the triangular base plate (63); a triangular top plate (65) is fixedly mounted on the top of the three limiting support rods (64); and a triangular limiting mounting plate (66) is fixedly mounted on the middle surface of the three limiting support rods (64).

7. A special mold for a double-layered glass fiber tank according to claim 6, characterized in that: A power motor (67) is fixedly mounted on the opposite surfaces of the two triangular limit mounting plates (66); an adjusting screw (68) is fixedly mounted on the output top of the power motor (67); the top of the adjusting screw (68) is rotatably connected to the bottom of the triangular top plate (65) through a bearing; the top center of the triangular bottom plate (63) and the bottom center of the triangular limit mounting plate (66) arranged opposite to each other are rotatably connected to a driven screw (69) through a bearing; the driven screw (69) and the adjusting screw (68) are both close to the triangular limit mounting plates (65). A first gear (610) is fixedly mounted on the arc surface of the angle limit mounting plate (66), and a gear shaft (611) is rotatably connected to the opposite surfaces of the two triangular limit mounting plates (66) via bearings, and two ends of the gear shaft (611) are respectively located at the top and bottom of the two triangular limit mounting plates (66), and a second gear (612) is fixedly mounted on the top and bottom of the gear shaft (611), and the gear teeth of each second gear (612) are meshed with the tooth grooves of each correspondingly connected first gear (610); The arc surface of the adjusting screw (68) and the arc surface of the driven screw (69) are both threadedly connected with a triangular movable screw sleeve (613), the three end surfaces of the triangular movable screw sleeve (613) are all rotatably connected with a first connecting rod (614) through a pin shaft, the three end surfaces of the triangular limit mounting plate (66) are all rotatably connected with a second connecting rod (615) through a pin shaft, one end of the first connecting rod (614) and the middle part of the second connecting rod (615) are both rotatably connected through a pin shaft, the end surfaces of the two second connecting rods (615) distributed up and down on each side are both rotatably connected with an adapter seat (616) through a pin shaft, a semi-arc mold cavity plate (617) is fixedly installed on the surface of the bottom adapter seat (616), and a vertical slide rail (618) is fixedly installed on the arc inner wall of the semi-arc mold cavity plate (617), and the surface of the vertical slide rail (618) is slidably plugged with the surface of the adapter seat (616) at the top; The top of the semi-arc cavity plate (617) is hinged with a conical arc cavity plate (619) through a hinge, and an adjusting motor (620) is fixedly installed on the top of the triangular top plate (65). A rotating screw (621) is fixedly installed on the output top of the adjusting motor (620) through a coupling, and a limiting end (622) is fixedly installed on the top of the rotating screw (621). The circular arc surface of the rotating screw (621) is threadedly connected with a sliding adjustment plate (623), and the three end surfaces of the sliding adjustment plate (623) are rotatably connected with a third connecting rod (624) through a pin shaft, and one end of the third connecting rod (624) is rotatably connected to the inner wall of the conical arc cavity plate (619) through a pin shaft.

8. The special mold for a double-layered glass fiber tank according to claim 7, characterized in that: The barrel wall grinding mechanism (7) comprises a U-shaped connecting rod (71), the top and bottom ends of the U-shaped connecting rod (71) are fixedly mounted on the surface of the triangular top plate (65) and the surface of the triangular bottom plate (63) respectively, a telescopic rod (72) is slidably inserted on the surface of the U-shaped connecting rod (71), one end of each of the plurality of telescopic rods (72) is fixedly mounted with a vertical scraper (73), a first electric telescopic rod (74) is also fixedly mounted in the middle of the vertical surface of the U-shaped connecting rod (71), the telescopic end of the first electric telescopic rod (74) is fixedly mounted on the surface of the vertical scraper (73), the top of the vertical scraper (73) is hingedly mounted with an arc scraper (75) through a hinge, a second electric telescopic rod (76) is hingedly mounted on the top end of the U-shaped connecting rod (71), the telescopic top end of the second electric telescopic rod (76) is hingedly mounted on the surface of one end of the arc scraper (75).

9. The special mold for a glass fiber double-layer tank according to claim 7, characterized in that: The molding auxiliary mechanism (9) comprises a supporting base plate (91), a first spring (92) is fixedly mounted on the top of the mold base plate (4), the top of the first spring (92) is fixedly mounted on the bottom of the supporting base plate (91), the middle of the supporting base plate (91) is slidably plugged with the four surfaces of the rotating shaft (62), and the supporting base plate (91) is located at the bottom of the semi-arc cavity plate (617); A connecting vertical plate (93) is also fixedly installed on one side of the top of the mold bottom plate (4), and the connecting vertical plate (93) is L-shaped. Both ends of the connecting vertical plate (93) are fixedly installed with arc-shaped reinforcement plates (94), and one end of the two arc-shaped reinforcement plates (94) is respectively fixedly installed on the surfaces of the two L-shaped support plates (51). The top ends of the two L-shaped support plates (51) and the top ends of the connecting vertical plates (93) are connected to a limiting top plate (95) by screw threads. An auxiliary sliding rod (96) is slidably inserted into the middle surface of the limiting top plate (95), and a plugging mold cavity plate (97) is fixedly installed on the bottom end of the auxiliary sliding rod (96). A second spring (98) is also fixedly installed on the top of the plugging mold cavity plate (97), and the top end of the second spring (98) is fixedly installed on the bottom of the connecting vertical plate (93), and the second spring (98) is also movably sleeved on the surface of the auxiliary sliding rod (96).

10. A special mold for a glass fiber double-layer tank according to claim 9, characterized in that: The cooperating cutting mechanism (8) comprises a cutting cylinder (81), three of the cutting cylinders (81) are mounted on the top of the supporting base plate (91), and the three cutting cylinders (81) are distributed in a ring array. An arc-shaped cutting blade (82) is fixedly mounted on the telescopic end of the cutting cylinder (81), and an arc-shaped limit seat (83) is also fixedly mounted on the top of the supporting base plate (91). A blocking mounting block (84) is fixedly mounted on the bottom of the supporting base plate (91), and a blocking adjustment groove (85) is provided on the top of the blocking mounting block (84) and the top of the supporting base plate (91). A blocking plate (86) is slidably inserted into the inner wall of the blocking adjustment groove (85), and an adjusting shaft (87) is rotatably connected to the inner bottom wall of the blocking adjustment groove (85) through a bearing, and the arc surface of the adjusting shaft (87) is threadedly connected to the surface of the blocking plate (86).

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