A dehydration device for thermoplastic polyurethane elastomers

Abstract

The utility model discloses a kind of dehydration devices for thermoplastic polyurethane elastomer, belong to dehydration device field, including dehydration tank, dehydration tank is fixedly connected with connecting frame, dehydration mechanism is provided in dehydration tank, friction assembly is provided in dehydration tank inside, dehydration mechanism includes dehydration cylinder, dehydration cylinder is movably arranged in dehydration tank inside, and a plurality of water holes are arranged on the side surface of dehydration cylinder. Advantageous effects are that: dehydration mechanism, power mechanism and extrusion mechanism are set, through the setting of swing frame and support shaft, dehydration cylinder can reciprocate when spinning drying elastomer, improve moisture spin-drying efficiency, also speed up the process of moisture from dehydration cylinder spin, and through the setting of first friction strip and second friction strip, dehydration cylinder and extrusion shaft will produce opposite direction rotation when swinging, further speed up the spin-drying process, effectively improve dehydration effect and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of dehydration devices, and in particular to a dehydration device for thermoplastic polyurethane elastomers. Background Technology

[0002] Thermoplastic polyurethane elastomers, also known as thermoplastic polyurethane rubbers, are a type of linear block copolymer containing PBT (polybutylene terephthalate) polyester hard segments and aliphatic polyester or polyether soft segments. They combine the excellent elasticity of rubber with the easy processing of thermoplastic plastics, and their hardness can be adjusted, allowing for free design. They are a new variety of thermoplastic elastomers that have attracted much attention.

[0003] A search revealed a Chinese patent publication number CN220922990U disclosing a dehydration device for thermoplastic polyurethane elastomers. This patent includes a cylinder with a motor fixedly mounted at its lower end. The motor's shaft passes through the cylinder and is rotatably connected to it. A discharge mechanism is located inside the cylinder, and a filter cartridge is mounted on the discharge mechanism. A detachable cover is mounted on the upper end of the cylinder, and a hot air pump is fixedly mounted on the upper end of the cover. The inlet pipe of the hot air pump passes through the cover and is fixedly connected to it. This device drives the filter cartridge to rotate via a motor, causing the thermoplastic polyurethane elastomer inside to undergo centrifugal motion. This causes water on the thermoplastic polyurethane elastomer to be flung away. Simultaneously, hot air is introduced into the distribution hood via the hot air pump, and the thermoplastic polyurethane elastomer is agitated by stirring blades, making the dehydration of the thermoplastic polyurethane elastomer more efficient and faster. However, current dehydration devices for thermoplastic polyurethane elastomers lack a means to quickly remove water remaining in the cylinder and rely solely on centrifugal motion for dehydration, affecting the efficiency and effect of the dehydration process and reducing production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a dehydration device for thermoplastic polyurethane elastomers in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions: A dehydration device for thermoplastic polyurethane elastomers includes a dehydration tank, a connecting frame fixedly connected to the dehydration tank, a dehydration mechanism inside the dehydration tank, a friction assembly inside the dehydration tank, a dehydration cylinder movably disposed inside the dehydration tank, several water-permeable holes on the side of the dehydration cylinder, a mounting frame rotatably connected to the top of the dehydration cylinder, a support shaft fixedly connected to the center of the mounting frame, the support shaft rotatably connected to the inside of the dehydration tank, a power mechanism mounted on the connecting frame, the power mechanism being used to rotate the support shaft, thereby causing the dehydration cylinder to spin-dry the elastomer inside, and a compression mechanism inside the dehydration tank, the compression mechanism including a compression shaft movably mounted inside the dehydration cylinder and eccentrically disposed, for compressing the elastomer.

[0006] Preferably, the friction assembly includes a first friction strip, which is fixedly connected to the inner wall of the dehydration tank, and a friction ring that mates with the first friction strip is fixedly connected to the side of the dehydration cylinder.

[0007] Preferably, the upper and lower ends of the extrusion shaft are rotatably connected to connecting rods, the top connecting rod is rotatably connected to the center position of the mounting frame, and the bottom connecting rod is fixedly connected to a transmission component.

[0008] Preferably, the transmission assembly includes a rotating rod, with a rotating disk fixedly connected to the end of the rotating rod away from the extrusion shaft, and a friction edge fixedly connected to the side of the rotating disk. The friction assembly also includes a second friction strip that cooperates with the friction edge, and the second friction strip is fixedly connected to the inner wall of the dehydration tank.

[0009] Preferably, the first friction strip and the second friction strip are respectively disposed on the inner walls of opposite sides of the dehydration tank.

[0010] Preferably, the power mechanism includes a hydraulic cylinder, which is fixedly connected to the top of the connecting frame. A push seat is fixedly connected to the output end of the hydraulic cylinder. A sliding shaft is fixedly connected to the inner side of the push seat. A swing frame is sleeved on the sliding shaft. The swing frame is fixedly connected to the top of the support shaft.

[0011] Preferably, the bottom of the dehydration cylinder is detachably connected to a bottom shell, and the side of the dehydration box is rotatably connected to a closed door.

[0012] Preferably, a hot air assembly is installed on one side of the dehydration tank.

[0013] The beneficial effects are as follows: the dehydration mechanism, power mechanism and extrusion mechanism are set up. By setting up the swing frame and support shaft, the dehydration cylinder can swing back and forth when the elastomer is spun dry, which improves the efficiency of water spun dry and accelerates the process of water being spun out of the dehydration cylinder. By setting up the first friction strip and the second friction strip, the dehydration cylinder and the extrusion shaft will rotate in opposite directions when swinging, which further accelerates the spun dry process and effectively improves the dehydration effect and efficiency.

[0014] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of a dehydration device for thermoplastic polyurethane elastomers according to the present invention; Figure 2 This is a cross-sectional view of a dehydration device for thermoplastic polyurethane elastomers as described in this utility model; Figure 3 This is another sectional view of the dehydration device for thermoplastic polyurethane elastomer described in this utility model; Figure 4 This is a schematic diagram of the internal structure of the dehydration tank of a dehydration device for thermoplastic polyurethane elastomers according to this utility model; Figure 5 This is a schematic diagram showing the connection between the dehydration mechanism, power mechanism, and extrusion mechanism of a dehydration device for thermoplastic polyurethane elastomers according to this utility model; Figure 6 This is a schematic diagram of the extrusion mechanism of a dehydration device for thermoplastic polyurethane elastomers according to the present invention.

[0016] The reference numerals in the attached drawings are explained as follows: 101, dehydration tank; 102, connecting frame; 103, closed door; 104, hot air assembly; 105, first friction strip; 106, second friction strip; 201, dehydration cylinder; 202, water permeable hole; 203, mounting frame; 204, friction ring; 205, bottom shell; 206, support shaft; 301, hydraulic cylinder; 302, push seat; 303, sliding shaft; 304, swing frame; 401, connecting rod; 402, extrusion shaft; 403, rotating rod; 404, rotating disk; 405, friction edge. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] The present invention will be further described below with reference to the accompanying drawings: like Figure 1 — Figure 6As shown, a dehydration device for thermoplastic polyurethane elastomers includes a dehydration tank 101, a connecting frame 102 bolted to the dehydration tank 101, a dehydration mechanism inside the dehydration tank 101, a hot air assembly 104 mounted on one side of the dehydration tank 101, a friction assembly inside the dehydration tank 101, and a dehydration cylinder 201 movably disposed inside the dehydration tank 101. The dehydration cylinder 201 has several water-permeable holes 202 on its side, a mounting frame 203 rotatably connected to the top of the dehydration cylinder 201, and a bottom shell 205 detachably connected to the bottom of the dehydration cylinder 201. Removing the bottom shell 205 allows for the discharge and collection of the dehydrated elastomer inside the dehydration cylinder 201. A closed door 103 is rotatably connected to the side of the 101. A support shaft 206 is bolted to the center of the mounting frame 203. The support shaft 206 is rotatably connected to the inside of the dehydration tank 101. A power mechanism is installed on the connecting frame 102. The power mechanism is used to rotate the support shaft 206, thereby causing the dehydration cylinder 201 to spin-dry the elastomer inside. A squeezing mechanism is provided inside the dehydration tank 101. The squeezing mechanism includes a squeezing shaft 402. The squeezing shaft 402 is movably installed inside the dehydration cylinder 201 and is eccentrically positioned. It is used to squeeze the elastomer. During the dehydration operation, the squeezing shaft 402 rotates around the axis of the dehydration cylinder 201 to squeeze and dehydrate the thermoplastic polyurethane elastomer inside the dehydration cylinder 201.

[0020] In this embodiment, the friction assembly includes a first friction strip 105, which is bonded to the inner wall of the dehydration tank 101. A friction ring 204 that cooperates with the first friction strip 105 is bonded to the side of the dehydration cylinder 201. The cooperation between the first friction strip 105 and the friction ring 204 allows the dehydration cylinder 201 to rotate due to the frictional force of the friction ring 204 on the first friction strip 105 during the swinging process of the dehydration cylinder 201. The superposition of multiple centrifugal forces is beneficial to improving the dehydration efficiency and effect.

[0021] In this embodiment, connecting rods 401 are rotatably connected to the upper and lower ends of the extrusion shaft 402. The top connecting rod 401 is rotatably connected to the center of the mounting bracket 203, and the bottom connecting rod 401 is bolted to a transmission assembly. The transmission assembly includes a rotating rod 403, and a rotating disk 404 is bolted to the end of the rotating rod 403 away from the extrusion shaft 402. A friction edge 405 is engaged on the side of the rotating disk 404. The friction assembly also includes a second friction strip 106 that cooperates with the friction edge 405. The second friction strip 106 is adhered to the inner wall of the dehydration tank 101. The first friction strip 105 and the second friction strip 106... The connecting rod 401 and the extrusion shaft 402 are respectively installed on the inner walls of opposite sides of the dehydration tank 101. When the connecting rod 401 and the extrusion shaft 402 move synchronously with the swing of the dehydration cylinder 201, the friction edge 405 on the rotating disk 404 is rotated by the friction force of the second friction strip 106. Since the second friction strip 106 and the first friction strip 105 are located on opposite surfaces, the rotation direction of the rotating disk 404 is opposite to the rotation direction of the dehydration cylinder 201. The rotating disk 404 drives the connecting rod 401 to rotate through the rotating rod 403, thereby causing the extrusion shaft 402 to extrude pressure on the elastic body inside the dehydration cylinder 201, further improving the dehydration efficiency.

[0022] In this embodiment, the power mechanism includes a hydraulic cylinder 301, which is bolted to the top of the connecting frame 102. The output end of the hydraulic cylinder 301 is bolted to a push seat 302. The inner side of the push seat 302 is bolted to a sliding shaft 303. A swing frame 304 is fitted on the sliding shaft 303 and welded to the top of the support shaft 206.

[0023] Working principle: When using this device, the thermoplastic polyurethane elastomer to be dehydrated is placed into the dehydration cylinder 201. The hot air assembly 104 is turned on, which accelerates the dehydration process inside the dehydration chamber 101 and controls the output end of the hydraulic cylinder 301 to perform a rapid forward and rapid return motion. The push seat 302 drives the sliding shaft 303 to move, and the sliding shaft 303 drives the swing frame 304 to reciprocate around the support shaft 206. The swing frame 304 drives the mounting frame 203 to move synchronously through the support shaft 206. The mounting frame 203 drives the dehydration cylinder 201 and the connecting rod 401 to swing. During the swinging process of the dehydration cylinder 201, the friction ring 204 is subjected to the friction force of the first friction strip 105, causing the dehydration cylinder 201 to rotate, thus dehydrating the elastomer. This also accelerates the removal of water from the dehydration cylinder 201. The friction edge 405 on the rotating disk 404 rotates due to the friction force of the second friction strip 106. Since the second friction strip 106 and the first friction strip 105 are located on opposite surfaces, the rotation direction of the rotating disk 404 is opposite to that of the dehydration cylinder 201. The rotating disk 404 drives the connecting rod 401 to rotate through the rotating rod 403, thereby causing the extrusion shaft 402 to extrude pressure on the elastomer in the dehydration cylinder 201, further improving the dehydration efficiency. The superposition of multiple centrifugal actions is beneficial to improving the dehydration efficiency and effect. After the device has been running for a period of time, the dehydration operation is completed. Open the sealing door 103 and remove the bottom shell 205 to collect the dehydrated thermoplastic polyurethane elastomer in the dehydration cylinder 201.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A dehydration device for thermoplastic polyurethane elastomers, comprising a dehydration tank (101), a connecting frame (102) fixedly connected to the dehydration tank (101), and a dehydration mechanism disposed inside the dehydration tank (101), characterized in that: A friction assembly is provided inside the dehydration tank (101). The dehydration mechanism includes a dehydration cylinder (201), which is movably disposed inside the dehydration tank (101). Several water-permeable holes (202) are provided on the side of the dehydration cylinder (201). A mounting frame (203) is rotatably connected to the top of the dehydration cylinder (201). A support shaft (206) is fixedly connected to the center of the mounting frame (203). The support shaft (206) is rotatably connected to the inside of the dehydration tank (101). A power mechanism is installed on the connecting frame (102). The power mechanism is used to rotate the support shaft (206), thereby causing the dehydration cylinder (201) to spin dry the elastomer inside. A squeezing mechanism is provided inside the dehydration tank (101). The squeezing mechanism includes a squeezing shaft (402), which is movably installed inside the dehydration cylinder (201) and eccentrically disposed, for squeezing the elastomer.

2. The dehydration device for thermoplastic polyurethane elastomers according to claim 1, characterized in that: The friction assembly includes a first friction strip (105), which is fixedly connected to the inner wall of the dehydration tank (101), and a friction ring (204) that cooperates with the first friction strip (105) is fixedly connected to the side of the dehydration cylinder (201).

3. The dehydration device for thermoplastic polyurethane elastomers according to claim 2, characterized in that: The extrusion shaft (402) is rotatably connected to the upper and lower ends of the connecting rod (401). The top connecting rod (401) is rotatably connected to the center of the mounting frame (203), and the bottom connecting rod (401) is fixedly connected to the transmission assembly.

4. The dehydration device for thermoplastic polyurethane elastomers according to claim 3, characterized in that: The transmission assembly includes a rotating rod (403), one end of which is fixedly connected to a rotating disk (404) away from the extrusion shaft (402), and a friction edge (405) is fixedly connected to the side of the rotating disk (404). The friction assembly also includes a second friction strip (106) that cooperates with the friction edge (405), and the second friction strip (106) is fixedly connected to the inner wall of the dehydration tank (101).

5. A dehydration device for thermoplastic polyurethane elastomers according to claim 4, characterized in that: The first friction strip (105) and the second friction strip (106) are respectively disposed on the inner walls of opposite sides of the dehydration tank (101).

6. The dehydration device for thermoplastic polyurethane elastomers according to claim 1, characterized in that: The power mechanism includes a hydraulic cylinder (301), which is fixedly connected to the top of the connecting frame (102). A push seat (302) is fixedly connected to the output end of the hydraulic cylinder (301). A sliding shaft (303) is fixedly connected to the inner side of the push seat (302). A swing frame (304) is sleeved on the sliding shaft (303). The swing frame (304) is fixedly connected to the top of the support shaft (206).

7. The dehydration device for thermoplastic polyurethane elastomers according to claim 1, characterized in that: The bottom of the dehydration cylinder (201) is detachably connected to a bottom shell (205), and the side of the dehydration box (101) is rotatably connected to a closed door (103).

8. The dehydration device for thermoplastic polyurethane elastomers according to claim 1, characterized in that: A hot air assembly (104) is installed on one side of the dehydration tank (101).

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