Raw material hot melting device with material crushing function

Abstract

The utility model relates to the technical field of hot melting devices, in particular to a raw material hot melting device with a material crushing function, which comprises a hot melting tank, a crushing box and a quantifying box are arranged above the hot melting tank, the quantifying box is positioned below the crushing box, and two first crushing rollers which are oppositely arranged are mounted in the crushing box. A crushing plate located below the first crushing rollers is rotationally connected to the interior of the crushing box, and a second crushing roller is arranged on the upper end face of the crushing plate, so that the thermoplastic polyurethane elastomer is crushed by the two first crushing rollers, and then is subjected to secondary crushing by the second crushing roller; therefore, the crushing efficiency and the crushing effect of the thermoplastic polyurethane elastomer can be improved, the subsequent rapid hot melting of the thermoplastic polyurethane elastomer is facilitated, and the crushed thermoplastic polyurethane elastomer particles are weighed and quantified through the weighing device, so that the thermoplastic polyurethane elastomer particles can be quantitatively added into the hot melting tank; therefore, a better hot melting effect is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of hot melting devices, specifically a raw material hot melting device with a crushing function. Background Technology

[0002] Thermoplastic polyurethane elastomer (TPU) is an important thermoplastic elastomer material. TPU, also known as thermoplastic polyurethane rubber, is an (AB)n-type block linear polymer. In this polymer, A is a high molecular weight (1000-6000) polyester or polyether, B is a diol containing 212 straight-chain carbon atoms, and the chemical structure between the AB segments is a diisocyanate. TPU possesses high tensile strength and tear strength, as well as good toughness, excellent abrasion resistance and oil resistance, and can maintain stable performance in harsh environments.

[0003] When thermoplastic polyurethane elastomers need to be hot-melted, a hot-melt device is required to process the rubber raw materials.

[0004] Currently, when hot-melting thermoplastic polyurethane elastomers, the elastomers are directly melted. However, larger pieces of thermoplastic polyurethane elastomers cannot be melted quickly, which affects the melting efficiency. Furthermore, there is a lack of a structure for quantitatively adding crushed thermoplastic polyurethane elastomer particles into the hot-melt tank. Therefore, it is necessary to propose a raw material hot-melt device with crushing function to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a raw material hot-melting device with a crushing function, which can perform secondary crushing of thermoplastic polyurethane elastomer, improve the crushing efficiency and crushing effect of thermoplastic polyurethane elastomer, and can quantitatively add thermoplastic polyurethane elastomer particles into the hot-melting tank to achieve a better hot-melting effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a raw material hot melting device with crushing function, comprising a hot melting tank, a crushing box and a metering box located below the crushing box are arranged above the hot melting tank, two first crushing rollers arranged opposite each other are installed inside the crushing box, a crushing plate located below the first crushing rollers is rotatably connected inside the crushing box, a motor with its output end fixedly connected to the crushing plate is installed on the outer wall of the crushing box, a second crushing roller is arranged on the upper end face of the crushing plate, an electric slide rail is embedded on the left side of the inner wall of the crushing box, and an electric push rod with its output end rotatably connected to the outer wall of the electric slide rail is slidably connected to the second crushing roller;

[0007] A weighing device is installed at the bottom of the metering box, and a metering cavity is installed on the upper surface of the weighing device.

[0008] In order to crush thermoplastic polyurethane elastomer into smaller particles, as a preferred embodiment of the present invention, the crushing teeth of the first crushing roller are larger than the crushing teeth of the second crushing roller.

[0009] In order to pour the thermoplastic polyurethane elastomer to be crushed into the crushing box, as a preferred raw material hot-melt device with crushing function of this utility model, the lower end face of the crushing box is equipped with a feeding pipe connected to a metering box, the outer wall of the feeding pipe is equipped with a solenoid valve, and the upper end face of the crushing box is connected to the middle of the feeding port.

[0010] In order to allow the particles in the metering chamber to enter the hot melting tank, as a preferred embodiment of the raw material hot melting device with crushing function of this utility model, the outer wall of the metering chamber is connected to a discharge pipe that penetrates and extends to the outer wall of the metering tank.

[0011] In order to support the crushing box, the metering box, and the hot melting tank, as a preferred embodiment of the raw material hot melting device with crushing function of this utility model, the outer walls of the crushing box, the metering box, and the hot melting tank are equipped with brackets.

[0012] To ensure the normal operation of the first crushing roller, the second crushing roller, the electric slide rail, the weighing device, the solenoid valve, the electric push rod, and the motor, in a preferred embodiment of the raw material hot-melting device with crushing function of this utility model, a controller is installed on the upper end face of the crushing box, and the first crushing roller, the second crushing roller, the electric slide rail, the weighing device, the solenoid valve, the electric push rod, and the motor are all electrically connected to the controller.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention first uses two first crushing rollers to crush the thermoplastic polyurethane elastomer, and then uses a second crushing roller in conjunction with a crushing plate to crush the thermoplastic polyurethane elastomer a second time. This improves the crushing efficiency and effect of the thermoplastic polyurethane elastomer, facilitating its rapid hot melting. The crushed thermoplastic polyurethane elastomer particles are weighed and quantitatively added to the hot melting tank, thus achieving a better hot melting effect. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of the present invention;

[0016] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0017] In the diagram: 1. Support frame; 101. Hot melt tank; 2. Crushing box; 201. First crushing roller; 202. Electric slide rail; 203. Electric push rod; 204. Second crushing roller; 205. Crushing plate; 206. Motor; 207. Feeding pipe; 3. Metering box; 301. Weighing device; 302. Metering chamber; 303. Discharge pipe; 4. Controller. Detailed Implementation

[0018] Please see Figures 1 to 2 A raw material hot melting device with crushing function includes a hot melting tank 101, a crushing box 2 and a metering box 3 located below the crushing box 2 are arranged above the hot melting tank 101, two first crushing rollers 201 arranged opposite each other are installed inside the crushing box 2, a crushing plate 205 located below the first crushing rollers 201 is rotatably connected inside the crushing box 2, a motor 206 with its output end fixedly connected to the crushing plate 205 is installed on the outer wall of the crushing box 2, a second crushing roller 204 is arranged on the upper end face of the crushing plate 205, an electric slide rail 202 is embedded in the left side of the inner wall of the crushing box 2, and an electric push rod 203 with its output end rotatably connected to the outer wall of the electric slide rail 202 is slidably connected to the outer wall of the electric slide rail 202.

[0019] A weighing device 301 is installed at the bottom of the inside of the weighing box 3, and a weighing chamber 302 is installed on the upper surface of the weighing device 301.

[0020] In this embodiment: The thermoplastic polyurethane elastomer to be pulverized is poured into the pulverizing chamber 2, and simultaneously the two first pulverizing rollers 201 are activated to pulverize the thermoplastic polyurethane elastomer. The pulverized thermoplastic polyurethane elastomer falls onto the upper surface of the pulverizing plate 205. Then, the electric slide rail 202 is activated, driving the electric push rod 203 and the second pulverizing roller 204 to move downwards until the second pulverizing roller 204 contacts the thermoplastic polyurethane elastomer particles on the upper surface of the pulverizing plate 205. At the same time, the electric push rod 203 pushes the second pulverizing roller 204 to move left and right on the upper surface of the pulverizing plate 205. Simultaneously, the second pulverizing roller 204 rotates and cooperates with the pulverizing plate 205 to pulverize the thermoplastic polyurethane elastomer. Thus, the second pulverizing roller 204, while moving, rotates and pulverizes the thermoplastic polyurethane elastomer. The thermoplastic polyurethane elastomer undergoes secondary pulverization, which improves the pulverization efficiency and effect, facilitating rapid heat melting of the thermoplastic polyurethane elastomer. Then, motor 206 drives the pulverizing plate 205 to rotate, causing the plate to tilt and pour the pulverized thermoplastic polyurethane elastomer particles from its upper surface into the metering chamber 302. A weighing device 301 weighs and measures the amount of thermoplastic polyurethane elastomer particles entering the chamber. Once the required amount for heat melting is reached, the addition of more particles to the chamber is stopped. This allows for the metered addition of thermoplastic polyurethane elastomer particles into the heat melting tank 101, resulting in a better heat melting effect.

[0021] As a technical optimization of this utility model, the crushing teeth of the first crushing roller 201 are larger than the crushing teeth of the second crushing roller 204.

[0022] In this embodiment, the first crushing roller 201 has larger crushing teeth than the second crushing roller 204, which can crush the thermoplastic polyurethane elastomer into smaller particles, making it easier to heat melt it later.

[0023] As a technical optimization of this utility model, a feeding pipe 207 connected to a metering box 3 is installed on the lower end face of the crushing box 2. A solenoid valve is installed on the outer wall of the feeding pipe 207, and a feed inlet is connected to the middle of the upper end face of the crushing box 2.

[0024] In this embodiment: opening the solenoid valve on the outer wall of the feed pipe 207 allows the pulverized thermoplastic polyurethane elastomer to fall into the metering chamber 302, and through the feed inlet, the thermoplastic polyurethane elastomer to be pulverized can be poured into the pulverizing box 2.

[0025] As a technical optimization of this utility model, the outer wall of the quantitative cavity 302 is connected to a discharge pipe 303 that penetrates and extends to the outer wall of the quantitative box 3.

[0026] In this embodiment: the solenoid valve on the outer wall of the discharge pipe 303 is opened, allowing the particles in the metering chamber 302 to enter the hot melt tank 101.

[0027] As a technical optimization of this utility model, the outer wall of the crushing box 2, the metering box 3, and the hot melt tank 101 is equipped with a bracket 1.

[0028] In this embodiment, the support bracket 1 can support the crushing box 2, the metering box 3, and the hot melt tank 101.

[0029] As a technical optimization of this utility model, a controller 4 is installed on the upper end face of the crushing box 2. The first crushing roller 201, the second crushing roller 204, the electric slide rail 202, the weighing device 301, the solenoid valve, the electric push rod 203, and the motor 206 are all electrically connected to the controller 4.

[0030] In this embodiment, the controller 4 enables the first crushing roller 201, the second crushing roller 204, the electric slide rail 202, the weighing device 301, the solenoid valve, the electric push rod 203, and the motor 206 to work normally.

[0031] Working Principle: First, the thermoplastic polyurethane elastomer to be crushed is poured into the crushing chamber 2 through the feed inlet. Simultaneously, the two first crushing rollers 201 are activated to perform the initial crushing of the thermoplastic polyurethane elastomer. After being crushed by the two first crushing rollers 201, the thermoplastic polyurethane elastomer falls onto the upper surface of the crushing plate 205. Then, the electric slide rail 202 is activated, driving the electric push rod 203 and the second crushing roller 204 to move downwards until the second crushing roller 204 contacts the thermoplastic polyurethane elastomer particles on the upper surface of the crushing plate 205. At the same time, the electric push rod 203 pushes the second crushing roller 204 to move left and right on the upper surface of the crushing plate 205. Simultaneously, the second crushing roller 204 rotates and cooperates with the crushing plate 205 to crush the thermoplastic polyurethane elastomer. Then, the second crushing roller 204 rotates while moving to perform a second crushing of the thermoplastic polyurethane elastomer. After crushing, the electric slide rail 202 drives the electric push rod 203 to move downwards. The rod 203 and the second crushing roller 204 move upwards, away from the crushing plate 205, to avoid obstructing the rotation and tilting of the crushing plate 205. Then, the motor 206 drives the crushing plate 205 to rotate, causing the crushing plate 205 to rotate and tilt. The thermoplastic polyurethane elastomer particles crushed on the upper surface of the crushing plate 205 are poured into the metering chamber 302 through the opening of the solenoid valve on the outer wall of the feeding pipe 207. The thermoplastic polyurethane elastomer particles entering the metering chamber 302 can be weighed and metered by the weighing device 301. When the amount of thermoplastic polyurethane elastomer particles in the metering chamber 302 reaches the amount to be melted, the solenoid valve on the outer wall of the feeding pipe 207 is closed, and the addition of thermoplastic polyurethane elastomer particles into the metering chamber 302 is stopped. Then, the solenoid valve on the outer wall of the discharge pipe 303 is opened, and the thermoplastic polyurethane elastomer particles in the metering chamber 302 are metered and added into the hot melt tank 101 for hot melting, thereby achieving a better hot melt effect.

[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A raw material hot melting device with a crushing function, comprising a hot melting tank (101), characterized in that: The upper part of the hot melting tank (101) is provided with a crushing box (2) and a metering box (3) below the crushing box (2), the inside of the crushing box (2) is provided with two first crushing rollers (201) arranged oppositely, the inside of the crushing box (2) is rotatably connected with a crushing plate (205) below the first crushing roller (201), the outer wall of the crushing box (2) is provided with a motor (206) with an output end fixedly connected with the crushing plate (205), the upper end surface of the crushing plate (205) is provided with a second crushing roller (204), the left side of the inner wall of the crushing box (2) is embeddedly provided with an electric sliding rail (202), the outer wall of the electric sliding rail (202) is slidably connected with an electric push rod (203) with an output end rotatably connected with the second crushing roller (204). The bottom end of the inside of the metering box (3) is provided with a weighing device (301), and the upper end surface of the weighing device (301) is provided with a metering cavity (302).

2. The raw material hot melting device with a crushing function according to claim 1, characterized in that: The crushing teeth of the first crushing roller (201) are larger than the crushing teeth of the second crushing roller (204).

3. The raw material hot melting device with a crushing function according to claim 1, characterized in that: The lower end surface of the crushing box (2) is provided with a discharge pipe (207) in communication with the metering box (3), the outer wall of the discharge pipe (207) is provided with a solenoid valve, and the upper end surface of the crushing box (2) is provided with a feeding port in communication.

4. The raw material hot melting device with a crushing function according to claim 1, characterized in that: The outer wall of the metering cavity (302) is in communication with a discharge pipe (303) penetrating and extending to the outer wall of the metering box (3).

5. The raw material hot melting device with a crushing function according to claim 1, characterized in that: The outer walls of the crushing box (2), the metering box (3) and the hot melting tank (101) are provided with supports (1).

6. The raw material hot melting device with a crushing function according to claim 3, characterized in that: The upper end surface of the crushing box (2) is provided with a controller (4), and the first crushing roller (201), the second crushing roller (204), the electric sliding rail (202), the weighing device (301), the solenoid valve, the electric push rod (203) and the motor (206) are electrically connected with the controller (4).

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