Butyl hot melt sealant extrusion device

Abstract

The utility model relates to a butyl hot melt sealant extrusion device which comprises a conveying cylinder and a conveying belt, an extrusion head is arranged at the end part of the conveying cylinder, a fixing ring is sleeved on the outer surface of the extrusion head, four groups of first through grooves and second through grooves are coaxially formed in the surface of the fixing ring in an array manner, and connecting grooves are formed between the first through grooves and the second through grooves; and an external thread is formed in the outer surface of the end of the conveying cylinder, a nut is installed on the outer surface of the external thread, an annular limiting groove is formed in the side, facing the extrusion head, of the nut, and four pull rods are movably arranged in the annular limiting groove in a coaxial array mode. The extrusion head is aligned to the end of the conveying cylinder, the ends of the four pull rods are inserted into the four first through grooves, then the extrusion head is rotated to enable the pull rods to slide into the second through grooves, then the nut is rotated to enable the nut to move in the direction away from the extrusion head, the extrusion head can be firmly abutted against the end of the conveying cylinder, and the purpose of quick connection is achieved. Therefore, the extrusion head is convenient to replace, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing adhesive strips, in particular to a butyl hot-melt sealing adhesive extrusion device. Background Art

[0002] Butyl rubber strip is a sealing material with butyl rubber as the main component. Butyl rubber strip is usually used in various sealing and isolation applications, and is widely used due to its excellent sealing performance and weather resistance. Butyl rubber is a synthetic rubber with good air tightness, chemical resistance and aging resistance. When producing butyl rubber strip, an extruder is required to extrude the raw material into a corresponding shape to obtain a sealing strip.

[0003] The Chinese patent with publication number CN211917656U discloses an extrusion device for producing environmentally friendly sealing strips. The extrusion device can make the sealing strips discharged from the extrusion hole pass through a water pool and then be conveyed to the left by a belt conveyor. The cold water in the water pool has a good cooling effect on the sealing strips, so that the sealing strips can be quickly cooled and formed. Compared with static cooling, the efficiency is higher, and the purpose of high forming efficiency is achieved.

[0004] However, in the above patent, it is not convenient to replace the extruder head. When processing sealing strips of different sizes, a long downtime is required for replacement and adjustment, which leads to a decrease in production efficiency. In addition, after the sealing strips in the above patent are cooled by cold water, water stains will remain on the surface, which will pollute the surface of the conveyor belt and be detrimental to subsequent cutting, packaging and other processes. Utility Model Content

[0005] The utility model aims to provide a butyl hot-melt sealant extrusion device which is convenient for replacing the extrusion head and has good cooling effect.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is as follows.

[0007] A butyl hot melt sealant extrusion device comprises a conveying cylinder and a conveying belt, wherein an extrusion head is arranged at the end of the conveying cylinder, a fixing ring is sleeved on the outer surface of the extrusion head, four groups of first through grooves and second through grooves are coaxially arranged on the surface of the fixing ring, and a connecting groove is arranged between the first through grooves and the second through grooves. An external thread is arranged on the outer surface of the end of the conveying cylinder, a nut is installed on the outer surface of the external thread, an annular limiting groove is arranged on the side of the nut facing the extrusion head, four pull rods are movably arranged in the coaxial array inside the annular limiting groove, a top plate is installed on the end of the pull rod, a limiting sleeve is sleeved on the outer surface of the pull rod, and the limiting sleeve is connected to the outer surface of the end of the conveying cylinder.

[0008] It can be seen that the extrusion head is aligned with the end of the conveying cylinder, and the ends of the four tie rods are inserted into the four first through grooves. Then the extrusion head is rotated to make the tie rod slide from the connecting groove to the second through groove, and then the nut is rotated to move it away from the extrusion head. As a result, the four top plates can be driven to press against the fixing ring at the same time, and the extrusion head and the end of the conveying cylinder are firmly pressed together to achieve the purpose of quick connection. Therefore, the extrusion head can be quickly replaced when producing sealing strips of different sizes, thereby improving production efficiency.

[0009] Furthermore, a water tank is arranged inside the conveyor belt, and the outer surface of the water tank is respectively connected with a water inlet pipe and a water outlet pipe.

[0010] Cold water enters the water tank from the water inlet pipe and is then discharged outward from the water outlet pipe, thereby achieving the purpose of cold water flowing inside the water tank. The cold water lowers the temperature of the water tank and is transferred to the surface of the conveyor belt, thereby lowering the temperature of the conveyor belt. When the sealing strip is conveyed on the conveyor belt, the purpose of cooling can be achieved, and the situation of residual water stains on the surface of the sealing strip and the surface of the conveyor belt can be avoided, and the use effect is good; it is worth mentioning that the ends of the water inlet pipe and the water outlet pipe are connected to a chiller (not shown in the figure). The working principle of the chiller is similar to that of an air-conditioning system. Through compression, condensation, expansion and evaporation, heat is transferred from water to the external environment, thereby generating low-temperature cold water. This is a common prior art, so it will not be elaborated here; and the material of the water tank is copper, which has good thermal conductivity, thereby improving the cooling effect on the sealing strip.

[0011] Furthermore, four clamping grooves are provided in a coaxial array on the outer surface of the fixing ring, and the clamping grooves are arranged coaxially with the second through grooves.

[0012] When the rotating nut drives the pull rod to move away from the extruder head, the top plate can be stuck in the slot, so the angle of the fixing ring can be limited to prevent it from rotating and improve the stability of its installation.

[0013] Furthermore, a fixed block is installed on the outer surface of the end of the conveying cylinder, a sliding block is slidably installed on the upper surface of the fixed block, an insert rod is connected to the outer surface of the sliding block, and a plurality of plug holes are opened in a coaxial array on the outer surface of the nut.

[0014] After the extruder head is installed by rotating the nut, the slider can be slid to drive the insertion rod to be inserted into the socket corresponding to its current position, so that the angle of the nut can be limited to prevent it from being reversed and causing the extruder head to loosen.

[0015] Furthermore, four rotating rods are installed in a coaxial array on the outer surface of the nut, and the outer surfaces of the rotating rods are provided with anti-slip rubber pads.

[0016] The setting of the rotating rod can provide a force point to facilitate the rotation operation of the nut, and the setting of the anti-slip rubber pad can increase the friction between the hand and the hand to reduce the possibility of hand slipping.

[0017] Furthermore, first support columns are installed on both sides of the bottom of the conveying cylinder, and second support columns are installed on both sides of the bottom of the conveying belt.

[0018] By providing the first support column and the second support column, the conveying drum and the conveying belt can be supported respectively, so that the sealing strip extruded by the conveying drum can be stably laid on the surface of the conveying belt for conveying. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 for Figure 1 A is an enlarged schematic diagram;

[0021] Figure 3 It is a structural schematic diagram of the end portion of the conveying tube in the utility model;

[0022] Figure 4 It is a structural schematic diagram of the fixing ring in the utility model;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the conveyor belt in the utility model;

[0024] Figure 6 It is a schematic diagram of the cross-sectional structure of the nut in the utility model.

[0025] In the figure: 100, conveying cylinder; 101, conveyor belt; 102, extruder; 103, fixing ring; 104, first through groove; 105, second through groove; 106, connecting groove; 107, external thread; 108, nut; 109, annular limiting groove; 110, pull rod; 111, limiting sleeve; 112, top plate; 200, water tank; 201, water inlet pipe; 202, water outlet pipe; 300, slot; 400, fixing block; 401, slider; 402, plug rod; 403, socket; 500, rotating rod; 600, first support column; 601, second support column. DETAILED DESCRIPTION

[0026] The utility model is described in detail below with reference to the accompanying drawings.

[0027] like Figure 1-6As shown, a butyl hot melt sealant extrusion device includes a conveying cylinder 100 and a conveying belt 101. An extrusion head 102 is provided at the end of the conveying cylinder 100. A fixing ring 103 is sleeved on the outer surface of the extrusion head 102. Four groups of first through grooves 104 and second through grooves 105 are coaxially arrayed on the surface of the fixing ring 103. A connecting groove 106 is provided between the first through grooves 104 and the second through grooves 105. An external thread 107 is provided on the outer surface of the end of the conveying cylinder 100. A nut 108 is installed on the outer surface of the external thread 107. An annular limiting groove 109 is provided on the side of the nut 108 facing the extrusion head 102. Four pull rods 110 are movably arranged in a coaxial array inside the annular limiting groove 109. A top plate 112 is installed at the end of the pull rod 110. A limiting sleeve 111 is sleeved on the outer surface of the pull rod 110, and the limiting sleeve 111 is connected to the outer surface of the end of the conveying cylinder 100.

[0028] When in use, the raw material is squeezed through the conveying cylinder 100 so that it is extruded from the end of the extruder head 102 to form a sealing strip. The specific working principle is consistent with the comparative patent and will not be described in detail here. When the extruder head 102 needs to be replaced, the nut 108 can be rotated to move it toward the extruder head 102 to separate the top plate 112 from the fixing ring 103, and then the extruder head 102 is rotated to slide the pull rod 110 from the connecting groove 106 into the first through groove 104. The diameter of the first through groove 104 is larger than the diameter of the top plate 112, so the pull rod 110 can be pulled out from the inside of the first through groove 104. When the extruder head 102 is to be installed, align the extruder head 102 with the conveying cylinder 1 00, and insert the ends of the four tie rods 110 into the four first through grooves 104, then rotate the extrusion head 102 to make the tie rod 110 slide from the connecting groove 106 to the second through groove 105, and then rotate the nut 108 to move it away from the extrusion head 102. Due to the limiting effect of the limiting sleeve 111 on the tie rod 110, the tie rod 110 can be moved in the horizontal direction, so that the four top plates 112 can be driven to press against the fixing ring 103 at the same time, and the extrusion head 102 and the end of the conveying cylinder 100 are firmly pressed together to achieve the purpose of quick connection. Therefore, the extrusion head 102 can be quickly replaced when producing sealing strips of different sizes, thereby improving production efficiency.

[0029] Specifically, a water tank 200 is provided inside the conveyor belt 101, and the outer surface of the water tank 200 is respectively connected to a water inlet pipe 201 and a water outlet pipe 202. Cold water enters the water tank 200 from the water inlet pipe 201 and is then discharged from the water outlet pipe 202 to achieve the purpose of cold water flowing inside the water tank 200. The cold water reduces the temperature of the water tank 200 and is transferred to the surface of the conveyor belt 101, thereby reducing the temperature of the conveyor belt 101. When the sealing strip is transported on the conveyor belt 101, the purpose of cooling can be achieved, and the sealing strip is avoided. The use effect is good in the case of residual water stains on the surface of the strip and the surface of the conveyor belt 101; it is worth noting that the ends of the water inlet pipe 201 and the water outlet pipe 202 are not connected to the chiller shown in the figure. The working principle of the chiller is similar to that of the air-conditioning system. Through compression, condensation, expansion and evaporation, heat is transferred from the water to the external environment, thereby generating low-temperature cold water. This is a common prior art, so it will not be elaborated here; and the water tank 200 is made of copper, which has good thermal conductivity, thereby improving the cooling effect on the sealing strip.

[0030] Specifically, the outer surface of the fixing ring 103 is provided with four slots 300 in a coaxial array, and the slots 300 are coaxially arranged with the second through slot 105. When the rotating nut 108 drives the pull rod 110 to move away from the extrusion head 102, the top plate 112 can be stuck in the slots 300, so that the angle of the fixing ring 103 can be limited to avoid its rotation, thereby improving its installation stability.

[0031] Specifically, a fixed block 400 is installed on the outer surface of the end of the conveying cylinder 100, and a slider 401 is slidably installed on the upper surface of the fixed block 400. The outer surface of the slider 401 is connected to the insertion rod 402, and the outer surface of the nut 108 is provided with a plurality of holes 403 in a coaxial array. When the nut 108 is rotated to install the extrusion head 102, the sliding slider 401 can drive the insertion rod 402 to be inserted into the hole 403 corresponding to its current position, thereby limiting the angle of the nut 108 to prevent it from reversing and causing the extrusion head 102 to loosen.

[0032] Specifically, four rotating rods 500 are installed in a coaxial array on the outer surface of the nut 108, and the outer surface of the rotating rod 500 is provided with an anti-slip rubber pad. The setting of the rotating rod 500 can provide a force point to facilitate the rotation operation of the nut 108, and the setting of the anti-slip rubber pad can increase the friction between the hand and the hand to reduce the possibility of hand slipping.

[0033] Specifically, first support columns 600 are installed on both sides of the bottom of the conveying cylinder 100, and second support columns 601 are installed on both sides of the bottom of the conveying belt 101. Through the arrangement of the first support columns 600 and the second support columns 601, the conveying cylinder 100 and the conveying belt 101 can be supported respectively, so that the sealing strip extruded by the conveying cylinder 100 can be stably laid on the surface of the conveying belt 101 for transportation.

[0034] The above is a detailed description of the utility model in combination with specific embodiments, and it cannot be determined that the specific implementation methods of the utility model are limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, making several equivalent substitutions or obvious modifications without departing from the concept of the utility model, and having the same performance or use, should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A butyl hot melt sealant extrusion device, comprising a conveying cylinder (100) and a conveying belt (101), characterized in that: An extrusion head (102) is provided at the end of the conveying cylinder (100); a fixing ring (103) is sleeved on the outer surface of the extrusion head (102); four groups of first through grooves (104) and second through grooves (105) are coaxially arranged on the surface of the fixing ring (103); a connecting groove (106) is provided between the first through grooves (104) and the second through grooves (105); The outer surface of the end of the conveying cylinder (100) is provided with an external thread (107), and a nut (108) is installed on the outer surface of the external thread (107). The nut (108) is provided with an annular limiting groove (109) on the side facing the extruder head (102). Four pull rods (110) are movably arranged in a coaxial array inside the annular limiting groove (109), and a top plate (112) is installed at the end of the pull rod (110). The outer surface of the pull rod (110) is sleeved with a limiting sleeve (111), and the limiting sleeve (111) is connected to the outer surface of the end of the conveying cylinder (100).

2. A butyl hot melt sealant extrusion device according to claim 1, characterized in that: A water tank (200) is arranged inside the conveyor belt (101), and the outer surface of the water tank (200) is respectively connected to a water inlet pipe (201) and a water outlet pipe (202).

3. A butyl hot melt sealant extrusion device according to claim 2, characterized in that: The outer surface of the fixing ring (103) is provided with four slots (300) in a coaxial array, and the slots (300) are coaxially arranged with the second through slot (105).

4. A butyl hot melt sealant extrusion device according to claim 3, characterized in that: A fixing block (400) is installed on the outer surface of the end of the conveying cylinder (100), a sliding block (401) is slidably installed on the upper surface of the fixing block (400), an insert rod (402) is connected to the outer surface of the sliding block (401), and a plurality of insert holes (403) are provided in a coaxial array on the outer surface of the nut (108).

5. The butyl hot melt sealant extrusion device according to claim 4, characterized in that: Four rotating rods (500) are installed in a coaxial array on the outer surface of the nut (108), and the outer surface of the rotating rod (500) is provided with an anti-slip rubber pad.

6. A butyl hot melt sealant extrusion device according to claim 5, characterized in that: First support columns (600) are installed on both sides of the bottom of the conveying cylinder (100), and second support columns (601) are installed on both sides of the bottom of the conveying belt (101).

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