Raw material stirring device for hot melt adhesive production

Abstract

The utility model relates to the technical field of hot melt adhesive production device, more particularly, disclose a raw material stirring device for hot melt adhesive production, in the utility model, along the radial direction of stirring main shaft, if a plurality of groups of annular pipe fittings are set up on second pipe fitting and third pipe fitting, and heating medium can flow in the annular pipe fitting of different distance from stirring main shaft, provide heat to the raw material of different distance from stirring main shaft, guarantee raw material in the device ontology along the radial direction even heating, shorten the stirring time, effectively promoted the raw material stirring efficiency in hot melt adhesive production.

Description

Technical Field

[0001] This utility model relates to the technical field of hot melt adhesive production equipment, and in particular to a raw material mixing device for hot melt adhesive production. Background Technology

[0002] Hot melt adhesive is a composite material that is stable at room temperature and is widely used in the bonding of workpieces and the sealing of gaps. During processing, multiple raw materials are usually put into a reaction device, stirred and heated in the reaction device, and a polymerization reaction occurs between the multiple raw materials to form hot melt adhesive.

[0003] In the prior art, heat exchange tubes are usually installed on the outer wall of the reaction device. The outer wall of the reaction device is heated by introducing a flowing heat exchange medium into the heat exchange tubes, thereby increasing the temperature inside the reaction device and achieving the purpose of heating the raw materials.

[0004] However, the heating method that transfers heat from the outer wall of the reaction device inward will result in uneven temperature distribution between the central axis of the reaction device and the outer wall. In order to ensure that the various raw materials are fully polymerized, it is usually necessary to extend the heating and stirring time, which will reduce the stirring efficiency of the raw materials used in production. Utility Model Content

[0005] In view of the above problems, this utility model provides a raw material mixing device for hot melt adhesive production, the purpose of which is to ensure that the raw material is heated evenly in the radial direction within the device body and to shorten the mixing time.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0007] A raw material mixing device for hot melt adhesive production includes: a device body, a mixing spindle, a mixing paddle, and a drive motor. The mixing spindle is rotatably mounted on the device body, the mixing paddle is mounted on the mixing spindle, and the drive motor drives the mixing spindle to rotate. An installation channel extends through the mixing spindle along its axial direction. A first pipe, concentric with the mixing spindle, is disposed within the installation channel. A second pipe, one end of which connects to the first pipe, and the other end extends toward the inner wall of the device body. A third pipe, one end of which connects to the installation channel, and the other end extends toward the inner wall of the device body. Several sets of annular pipes are disposed on the second and third pipes along the radial direction of the mixing spindle and connect the second and third pipes. A heating assembly is used to deliver a heating medium into the first pipe. A recovery assembly is used to receive the heating medium output from the installation channel.

[0008] Furthermore, on the same horizontal plane, the second and third pipe fittings are symmetrically installed on both sides of the stirring main shaft; the annular pipe fitting includes: a first arc-shaped pipe and a second annular pipe symmetrically arranged on both sides of the stirring main shaft; wherein, one end of the first arc-shaped pipe is connected to the second pipe fitting, and the other end is connected to the third pipe fitting; one end of the second arc-shaped pipe is connected to the second pipe fitting, and the other end is connected to the third pipe fitting.

[0009] Furthermore, along the axial direction of the stirring shaft, several annular pipes and stirring paddles are arranged alternately.

[0010] Furthermore, the device also includes several reinforcing rods, one end of which is mounted on the stirring shaft and the other end extends toward the inner wall of the device body to support the annular tube.

[0011] Furthermore, the device also includes: a first end cover and a second end cover, respectively disposed at both ends of the stirring shaft, for sealing the installation channel; and a discharge hole, opened on the second end cover, for outputting the heating medium.

[0012] Furthermore, the recovery component is funnel-shaped and located below the discharge port to receive the heating medium.

[0013] Furthermore, the heating assembly includes: a pump body for pressurizing and delivering the heating medium; and a delivery pipe, one end of which is connected to the pump body and the other end of which is rotatably connected to the first pipe fitting.

[0014] The beneficial effects of this utility model are as follows: In this utility model, along the radial direction of the stirring main shaft, several sets of annular pipes are arranged on the second and third pipes. The heating medium can flow in the annular pipes at different distances from the stirring main shaft, providing heat to the raw materials at different distances from the stirring main shaft, ensuring that the raw materials are heated evenly in the radial direction within the device body, shortening the stirring time, and effectively improving the raw material stirring efficiency in hot melt adhesive production. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal structure provided for an embodiment of this application.

[0016] Figure 2 The top view of the installation of the annular fitting, the second fitting, and the third fitting provided in the embodiments of this application.

[0017] Figure 3 for Figure 1 A magnified view of part A in the diagram.

[0018] The components include: 1. Device body; 11. Stirring shaft; 12. Stirring paddle; 13. Drive motor; 2. Installation channel; 31. First pipe fitting; 32. Second pipe fitting; 33. Third pipe fitting; 41. First arc-shaped pipe; 42. Second arc-shaped pipe; 5. Reinforcing rod; 61. First end cap; 62. Second end cap; 7. Recovery component; 8. Pump body; 81. Delivery pipe; 9. Dynamic sealing assembly; 10. Digital display thermocouple. Detailed Implementation

[0019] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0020] Reference Figure 1 and Figure 2 As shown in the embodiment of this application, a raw material mixing device for hot melt adhesive production includes: a device body 1, a mixing spindle 11, a mixing paddle 12, and a drive motor 13. The mixing spindle 11 is rotatably mounted on the device body 1, the mixing paddle 12 is mounted on the mixing spindle 11, and the drive motor 13 drives the mixing spindle 11 to rotate; an installation channel 2 extends through the mixing spindle 11 along its axial direction; a first pipe 31 is concentric with the mixing spindle 11 and is disposed within the installation channel 2; a second pipe... Component 32, one end connected to the first pipe 31, the other end extending toward the inner wall of the device body 1; third pipe 33, one end connected to the installation channel 2, the other end extending toward the inner wall of the device body 1; several sets of annular pipes, arranged along the radial direction of the stirring shaft 11 on the second pipe 32 and the third pipe 33, and connecting the second pipe 32 and the third pipe 33; heating assembly, used to deliver heating medium into the first pipe 31; recovery component 7, used to receive the heating medium output from the installation channel 2.

[0021] In practical use, the various raw materials to be reacted are put into the device body 1, the drive motor 13 is started, and the stirring shaft 11 and the stirring paddle 12 are rotated to stir the raw materials in the device body 1; at the same time, the heating component is started to deliver the heating medium into the first pipe 31, and the heating medium flows through the second pipe 32, the annular pipe and the third pipe 33 in sequence, and finally flows through the installation channel 2 to the recovery component 7.

[0022] In this invention, along the radial direction of the stirring shaft 11, several sets of annular tubes are arranged on the second tube 32 and the third tube 33. The heating medium can flow in the annular tubes at different distances from the stirring shaft 11, providing heat to the raw materials at different distances from the stirring shaft 11, ensuring that the raw materials are heated evenly in the radial direction within the device body 1, shortening the stirring time, and effectively improving the raw material stirring efficiency in hot melt adhesive production.

[0023] In this embodiment, the stirring spindle 11 and the output shaft of the drive motor 13 are connected by a bevel gear, and the stirring spindle 11 can be rotated by rotating the output shaft of the drive motor 13.

[0024] Preferably, on the same horizontal plane, the second pipe fitting 32 and the third pipe fitting 33 are symmetrically installed on both sides of the stirring main shaft 11; the annular pipe fitting includes: a first arc-shaped pipe 41 and a second annular pipe symmetrically arranged on both sides of the stirring main shaft 11; wherein, one end of the first arc-shaped pipe 41 is connected to the second pipe fitting 32 and the other end is connected to the third pipe fitting 33; one end of the second arc-shaped pipe 42 is connected to the second pipe fitting 32 and the other end is connected to the third pipe fitting 33.

[0025] Of course, one end of the second fitting 32 is connected to the first fitting 31, and the other end is sealed; one end of the third fitting 33 is connected to the installation channel 2, and the other end is sealed.

[0026] Along the radial direction of the stirring shaft 11, several mounting through holes are provided on the second pipe 32 and the third pipe 33. The two ends of the first arc-shaped pipe 41 and the second arc-shaped pipe 42, which are symmetrically arranged on both sides of the stirring shaft 11, are respectively connected to the mounting through holes on the second pipe 32 and the third pipe 33 to form an annular pipe.

[0027] It is worth mentioning that the first arc-shaped tube 41 and the second arc-shaped tube 42 can be installed by welding.

[0028] Specifically, along the axial direction of the stirring main shaft 11, several annular pipes and stirring paddles 12 are staggered; the raw materials are heated and stirred at different horizontal heights, further ensuring that the raw materials are heated evenly and improving the stirring efficiency of the raw materials for production.

[0029] Continue to refer to Figure 2 As shown, the device also includes several reinforcing rods 5, one end of which is set on the stirring main shaft 11, and the other end extends toward the inner wall surface of the device body 1, for supporting the annular pipe. The reinforcing rods 5 can be welded to the stirring main shaft 11, and the annular pipe can also be welded to the reinforcing rods 5 to improve the installation stability of the annular pipe.

[0030] The device also includes: a first end cap 61 and a second end cap 62, which are respectively disposed at both ends of the stirring main shaft 11 to seal the installation channel 2; and a discharge hole, which is opened on the second end cap 62 for outputting the heating medium. It is worth mentioning that the discharge hole should be opened between the stirring main shaft 11 and the first pipe 31 to connect the installation channel 2 with the outside. The first end cap 61 seals the installation channel 2 to prevent the heating medium from leaking out, and the discharge hole allows for unified leakage.

[0031] In this embodiment, the recycling component 7 is funnel-shaped and located below the discharge hole. It is used to receive the heating medium, collect and store the heating medium for subsequent recycling.

[0032] Specifically, the heating assembly includes: a pump body 8 for pressurizing and conveying the heating medium; and a conveying pipe 81, one end of which is connected to the pump body 8, and the other end of which is rotatably connected to the first pipe fitting 31.

[0033] It is worth mentioning that water can be used as the heating medium, and a water pump can be used as the main body; of course, the annular pipe should be made of a material that can transfer heat, such as copper or stainless steel.

[0034] Reference Figure 1 and Figure 3 As shown, the device is also equipped with several dynamic sealing components 9. The dynamic sealing components 9 are used to rotate and seal the stirring shaft 11 and the device body 1, ensuring that the stirring shaft 11 can be rotatably mounted on the device cup and preventing the raw material from leaking out. The dynamic sealing components 9 are also used to rotate and seal the conveying pipe 81 and the first pipe 31 to prevent the heating medium from leaking out.

[0035] It is worth mentioning that those skilled in the art can achieve rotary sealing through mechanical seals, packing seals, etc., which will not be elaborated here.

[0036] Preferably, a digital display thermocouple 10 can also be provided on the main body 1 of the detection device. One end of the digital display thermocouple 10 is inserted into the raw material inside the main body 1 of the device, and the operator can observe the temperature of the raw material inside the main body 1 through the digital display thermocouple 10.

[0037] It is worth mentioning that the specific installation method of the digital display thermocouple 10 is a well-known technology in the field, and will not be described in detail here.

[0038] It is understandable that the heating medium can be heated in the tank by resistance wire. A commercially available temperature control valve can also be installed on the delivery pipe 81. The temperature control valve monitors the medium temperature in real time through a temperature sensor and compares it with the set value. The valve opening is adjusted to control the flow rate of the heating medium, thereby achieving automatic temperature regulation and facilitating the adjustment of the raw material stirring temperature.

[0039] Those skilled in the art will understand that although preferred embodiments of the present invention have been described, those skilled in the art, once they learn the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if these modifications and modifications of the present invention fall within the scope of the machine equivalents of the claims of the present invention, the present invention also intends to include these modifications and modifications.

Claims

1. A raw material mixing device for hot melt adhesive production, comprising: The device comprises a main body (1), a stirring shaft (11), a stirring paddle (12), and a drive motor (13). The stirring shaft (11) is rotatably mounted on the main body (1), the stirring paddle (12) is mounted on the stirring shaft (11), and the drive motor (13) is used to drive the stirring shaft (11) to rotate. The device is characterized by further comprising: The installation channel (2) extends through the stirring shaft (11) along the axial direction of the stirring shaft (11); The first pipe fitting (31) is concentric with the stirring shaft (11) and is installed in the installation channel (2); The second pipe fitting (32) is connected to the first pipe fitting (31) at one end and extends toward the inner wall of the device body (1) at the other end. The third fitting (33) has one end connected to the installation channel (2) and the other end extending toward the inner wall of the device body (1); Several sets of annular pipe fittings are arranged on the second pipe fitting (32) and the third pipe fitting (33) along the radial direction of the stirring main shaft (11), and the second pipe fitting (32) and the third pipe fitting (33) are connected. A heating assembly for supplying a heating medium into the first pipe (31); The recovery component (7) is used to receive the heating medium output from the installation channel (2).

2. The raw material mixing device for hot melt adhesive production according to claim 1, characterized in that, On the same horizontal plane, the second pipe fitting (32) and the third pipe fitting (33) are symmetrically installed on both sides of the stirring main shaft (11); The annular pipe includes: a first arc-shaped pipe (41) and a second annular pipe symmetrically arranged on both sides of the stirring main shaft (11); One end of the first arc-shaped pipe (41) is connected to the second pipe fitting (32), and the other end is connected to the third pipe fitting (33); one end of the second arc-shaped pipe (42) is connected to the second pipe fitting (32), and the other end is connected to the third pipe fitting (33).

3. The raw material mixing device for hot melt adhesive production according to claim 1, characterized in that, Along the axial direction of the stirring main shaft (11), several annular pipes and stirring paddles (12) are arranged alternately.

4. The raw material mixing device for hot melt adhesive production according to claim 1, characterized in that, It also includes several reinforcing rods (5), one end of which is set on the stirring main shaft (11), and the other end extends toward the inner wall of the device body (1) to support the annular pipe.

5. The raw material mixing device for hot melt adhesive production according to claim 1, characterized in that, Also includes: The first end cap (61) and the second end cap (62) are respectively set at both ends of the stirring main shaft (11) to seal the installation channel (2); The discharge port is located on the second end cover (62) for outputting the heating medium.

6. The raw material mixing device for hot melt adhesive production according to claim 5, characterized in that, The recycling component (7) is funnel-shaped and located below the discharge port to receive the heating medium.

7. The raw material mixing device for hot melt adhesive production according to claim 1, characterized in that, The heating components include: Pump body (8) is used for pressurizing and conveying heating medium; The delivery pipe (81) is connected to the pump body (8) at one end and can be rotatably connected to the first pipe fitting (31) at the other end.

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