Heating mechanism for EVA foaming injection colloidal particle production

Abstract

The utility model discloses a heating mechanism for EVA (Ethylene Vinyl Acetate) foaming injection colloidal particle production. The heating mechanism comprises a heating pipeline, a feed port, a discharge port, a heating sleeve and a quick split disassembly mechanism, the front end and the rear end of the heating pipeline are provided with quick split disassembly mechanisms, the motor is shut down, then the rear cover is disassembled from the opening in the rear end of the heating pipeline, the protective cover is turned up to expose the rotary handle, and then the auger is controlled to rotate through the rotary handle until the connecting groove is screwed out of the threaded section. And then the auger is horizontally moved to be pulled away from the inner side of the heating pipeline, so that the disassembly work of the auger can be completed, then the inner wall of the heating pipeline and the surface of the auger can be directly cleaned, and cleaning work is more convenient to carry out.

Description

Technical Field

[0001] The utility model relates to the relevant field of resin heating devices, in particular to a heating mechanism for the production of EVA foaming injection rubber particles. Background Art

[0002] EVA foam injection granules are light in weight and cheap in price. They are suitable for making various foam products such as slippers, midsoles, children's wheels, toys, beach bags, sheets, and plates. During the production process of EVA foam injection granules, they need to be heated and melted into liquid by a heating device, and then extruded into granules by a granulator.

[0003] Existing patent application number: CN201821219352.6 A heating device for an epoxy resin delivery pipe includes a delivery pipe, a heating pipe and an insulation pipe. By arranging a heating coil, a heating pipe and an insulation pipe, the heating coil is energized for heating, and eddy currents are generated in the heating pipe for further heating. The insulation pipe prevents heat dissipation and improves the heating efficiency. At the same time, the insulation pipe wraps the heating device, which is safer. The heating device can slide along the delivery pipe and the heating position can be freely adjusted. The temperature display can display the internal temperature conditions, making it easy for users to grasp the situation.

[0004] The above patent records a heating device applied to resin, which is roughly composed of a heating pipe and an auger. After the EVA raw material enters the heating pipe, it is heated and melted, and then the EVA raw material is pushed to the end of the heating pipe by the auger for discharge, thereby completing the heating process. However, the residual EVA raw material is easily solidified and adheres to the inner wall of the heating pipe and the surface of the auger, and the heating pipe is in a closed state, which is difficult to disassemble for direct cleaning. The subsequent cleaning work is troublesome. The structure of the heating device can be improved to solve the above problems. Utility Model Content

[0005] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a heating mechanism for producing EVA foam injection particles.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a heating mechanism for the production of EVA foam injection particles, including a heating pipe, a feed port, a discharge port, a heating sleeve and a quick split disassembly mechanism, the front end of the top of the heating pipe is provided with a feed port, the rear end of the bottom of the heating pipe is provided with a discharge port, the middle section of the outer surface of the heating pipe is sleeved with a heating sleeve, the front and rear ends of the heating pipe are provided with a quick split disassembly mechanism, the quick split disassembly mechanism includes a motor, a transmission rod, a threaded section, a rear cover, a auger, a connecting groove, an internal thread and a rotary handle, the front end of the heating pipe is provided with a motor, and the inner side of the heating pipe is provided with a transmission Rod, the front end of the transmission rod is rotatably installed with the heating pipe, the rear output shaft of the motor extends into the inner side of the heating pipe and is connected to the transmission rod, a threaded section is provided at the front section of the transmission rod, the rear end opening of the heating pipe is connected to the rear cover flange, an auger is rotatably installed at the center of the front side wall of the rear cover, a connecting groove is provided at the front end of the auger, and the auger is horizontally inserted to the outside of the transmission rod through the connecting groove, an internal thread is provided on the inner wall of the front section of the connecting groove, and the threaded section is connected to the inner side thread of the front section of the connecting groove through the internal thread, so that the transmission rod is installed and connected to the auger, a rotary handle is rotatably installed at the center of the rear side surface of the rear cover, and the rotary handle is connected to the rear end of the auger.

[0007] Preferably, the length of the transmission rod is at least 80% of the length of the heating pipe, and the length of the connecting groove matches that of the transmission rod.

[0008] Preferably, the length of the thread segment is not less than 10 cm, and the length of the internal thread matches that of the thread segment.

[0009] Preferably, a protective cover is hingedly mounted on the upper end of the rear side surface of the rear cover, and the protective cover covers the outside of the rotating handle when closed.

[0010] Preferably, the motor has a power-off self-locking function.

[0011] Preferably, the rotation direction of the auger during operation is consistent with the rotation direction of the threaded section screwed into the internal thread.

[0012] Beneficial effects of the utility model:

[0013] The utility model provides a quick split disassembly mechanism at the front and rear ends of the heating pipe. The motor is stopped, and then the rear cover is removed from the rear end opening of the heating pipe, the protective cover is flipped up to expose the rotary handle, and the auger is controlled to rotate by the rotary handle until the connecting groove is screwed out from the outside of the threaded section, and then the auger is moved horizontally to be pulled out from the inside of the heating pipe, so that the auger can be disassembled. Subsequently, the inner wall of the heating pipe and the surface of the auger can be directly cleaned, which is more convenient for cleaning.

[0014] The utility model has a protective cover hingedly mounted on the rear side of the rear cover. Since the rotating handle rotates together with the auger, the protective cover can cover the rotating handle to prevent it from being exposed to the outside and causing potential safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a right side cross-sectional structural schematic diagram of the heating pipe in the utility model;

[0016] Figure 2 This utility model Figure 1 Schematic diagram of the structure after the middle auger is disassembled;

[0017] Figure 3 It is a right side structural schematic diagram of the auger in the utility model;

[0018] Figure 4 It is a partial right side cross-sectional structural schematic diagram of the auger in the utility model.

[0019] Among them: heating pipe-1, feed port-2, discharge port-3, heating sleeve-4, quick split disassembly mechanism-5, motor-51, transmission rod-52, threaded section-53, rear cover-54, auger-55, connecting groove-56, internal thread-57, rotary handle-58, protective cover-59. DETAILED DESCRIPTION

[0020] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0021] See also Figure 1 The utility model provides a heating mechanism for the production of EVA foam injection particles, comprising a heating pipe 1, a feed port 2, a discharge port 3, a heating sleeve 4 and a quick split disassembly mechanism 5. The front end of the top of the heating pipe 1 is provided with a feed port 2, the rear end of the bottom of the heating pipe 1 is provided with a discharge port 3, the middle section of the outer surface of the heating pipe 1 is sleeved with a heating sleeve 4, and the front and rear ends of the heating pipe 1 are provided with quick split disassembly mechanisms 5.

[0022] See also Figure 2-4The quick split disassembly mechanism 5 in the utility model includes a motor 51, a transmission rod 52, a threaded section 53, a rear cover 54, a screw auger 55, a connecting groove 56, an internal thread 57 and a rotary handle 58. The motor 51 is installed at the front end of the heating pipe 1, and the transmission rod 52 is arranged inside the heating pipe 1. The front end of the transmission rod 52 is rotatably installed with the heating pipe 1. The rear output shaft of the motor 51 extends into the inside of the heating pipe 1 and is connected to the transmission rod 52. The transmission rod 52 is driven by the motor 51 to rotate. The front end of the transmission rod 52 is provided with a threaded section 53. The rear end opening of the heating pipe 1 is connected to the rear cover. 54 flange connection, an auger 55 is rotatably installed at the center of the front side wall of the rear cover 54, a connecting groove 56 is provided at the front end of the auger 55, and the auger 55 is horizontally inserted into the outside of the transmission rod 52 through the connecting groove 56, an internal thread 57 is provided on the inner wall of the front section of the connecting groove 56, and the threaded section 53 is threadedly connected with the inner side of the front section of the connecting groove 56 through the internal thread 57, so that the transmission rod 52 and the auger 55 are installed and connected, a rotary handle 58 is rotatably installed at the center of the rear side surface of the rear cover 54, and the rotary handle 58 is connected to the rear end of the auger 55, and the auger 55 can be controlled to rotate by the rotary handle 58.

[0023] It is further explained that the length of the transmission rod 52 is at least 80% of the length of the heating pipe 1, and the connecting groove 56 matches the length of the transmission rod 52, so that the transmission rod 52 can provide guidance for the auger 55 during its disassembly and assembly, thereby preventing the auger 55 from colliding and rubbing against the inner wall of the heating pipe 1 during its disassembly and assembly.

[0024] Further explanation: the length of the threaded section 53 is not less than 10 cm, and the length of the internal thread 57 matches that of the threaded section 53 to ensure the connection strength between the auger 55 and the transmission rod 52 , and the thread sealing between the internal thread 57 and the threaded section 53 is good, so that the material is not easy to enter the inner side of the connecting groove 56 .

[0025] To further explain, a protective cover 59 is hingedly installed on the upper end of the rear side surface of the rear cover 54. When the protective cover 59 is closed, it covers the outside of the handle 58. Since the handle 58 will rotate with the auger 55, the protective cover 59 can cover the handle 58 to prevent it from being exposed to the outside and causing safety hazards.

[0026] To further explain, the motor 51 has a power-off self-locking function. When the motor 51 is powered off, the transmission rod 52 will be locked at the current angle, thereby facilitating the disassembly and assembly of the auger 55.

[0027] To further illustrate, the rotation direction of the auger 55 when working is consistent with the rotation direction of the threaded section 53 screwed into the internal thread 57, ensuring that the rotational force of the auger 55 when working will not cause the threaded section 53 to be screwed out of the connecting groove 56, allowing the transmission rod 52 to drive the auger 55 to operate normally.

[0028] Here’s how it works:

[0029] First, before use, first install the auger 55 back to the inner side of the heating pipe 1. The specific operation method is: first extend the auger 55 into the inner side of the heating pipe 1, and let the auger 55 be sleeved to the outside of the transmission rod 52 through the connecting groove 56. During the installation process, the transmission rod 52 can provide a guiding support for the auger 55 to prevent the auger 55 from colliding and rubbing with the inner wall of the heating pipe 1. Then continue to push the auger 55 into the inner side of the heating pipe 1 until the connecting groove 56 contacts the threaded section 53. Then, control the rotation of the auger 55 by the rotary handle 58, and let the connecting groove 56 be screwed to the outside of the threaded section 53 through the internal thread 57 until the auger 55 completely enters the inner side of the heating pipe 1. At this time, the rear cover 54 fits the rear end opening of the heating pipe 1, and the rear cover 54 can be flange-connected to the rear end opening of the heating pipe 1, thereby completing the assembly of the auger 55 and the heating pipe 1.

[0030] Second, when in use, first supply energy to the heating sleeve 4 so that the heating sleeve 4 provides heat energy for the heating pipe 1, then start the motor 51, and the motor 51 drives the auger 55 to rotate through the transmission rod 52, and then add the EVA raw material from the feed port 2 into the heating pipe 1, so that the EVA raw material is melted into liquid in the heating pipe 1, and the EVA raw material is pushed to the end of the heating pipe 1 by the rotating auger 55. After the EVA raw material arrives at the end of the heating pipe 1, it is discharged outward through the discharge port 3, thereby completing the heating process of the EVA raw material.

[0031] Third, by hingedly installing a protective cover 59 on the rear side of the rear cover 54, since the rotary handle 58 rotates together with the auger 55, the protective cover 59 can cover the rotary handle 58 to prevent it from being exposed to the outside and causing safety hazards.

[0032] Fourth, after use, the residual EVA raw material is easy to adhere to the inner wall of the heating pipe 1 and the surface of the auger 55 after cooling and solidifying. It is difficult to completely clean it by water flushing alone. At this time, the auger 55 can be removed. The specific operation method is: first stop the motor 51, then remove the rear cover 54 from the rear end opening of the heating pipe 1, flip up the protective cover 59 to expose the handle 58, and then control the rotation of the auger 55 by the handle 58 until the connecting groove 56 is unscrewed from the outside of the threaded section 53, and then move the auger 55 horizontally to pull it out from the inside of the heating pipe 1. The disassembly of the auger 55 can be completed, and then the inner wall of the heating pipe 1 and the surface of the auger 55 can be directly cleaned, which is more convenient for the cleaning work.

[0033] The utility model provides a heating mechanism for the production of EVA foam injection particles. A quick split disassembly mechanism 5 is arranged at the front and rear ends of a heating pipe 1. The motor 51 is stopped, and then the rear cover 54 is disassembled from the rear end opening of the heating pipe 1. The protective cover 59 is flipped up to expose the rotary handle 58. The auger 55 is then controlled to rotate by the rotary handle 58 until the connecting groove 56 is screwed out from the outside of the threaded section 53. The auger 55 is then horizontally moved to be pulled out from the inner side of the heating pipe 1. The disassembly of the auger 55 is completed. Subsequently, the inner wall of the heating pipe 1 and the surface of the auger 55 can be directly cleaned, which is more convenient for cleaning. The protective cover 59 is hingedly installed on the rear side of the rear cover 54. Since the rotary handle 58 rotates with the auger 55, the protective cover 59 can cover the rotary handle 58 to prevent it from being exposed to the outside and causing safety hazards.

[0034] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heating mechanism for producing EVA foam injection particles, comprising a heating pipe (1), a feed port (2), a discharge port (3) and a heating jacket (4), wherein the front end of the top of the heating pipe (1) is provided with a feed port (2), the rear end of the bottom of the heating pipe (1) is provided with a discharge port (3), and the middle section of the outer surface of the heating pipe (1) is sleeved with a heating jacket (4); Features: The heating pipe (1) also includes a quick split disassembly mechanism (5), wherein the quick split disassembly mechanism (5) is arranged at the front and rear ends of the heating pipe (1), and the quick split disassembly mechanism (5) includes a motor (51), a transmission rod (52), a threaded section (53), a rear cover (54), a screw auger (55), a connecting groove (56), an internal thread (57) and a rotary handle (58). The front end of the heating pipe (1) is equipped with a motor (51), and the inner side of the heating pipe (1) is equipped with a transmission rod (52). The front end of the transmission rod (52) is rotatably mounted with the heating pipe (1). The rear output shaft of the motor (51) extends into the inner side of the heating pipe (1) and is connected to the transmission rod (52). The front section of the transmission rod (52) is equipped with a threaded section (53). The rear end opening of the heating pipe (1) is flange-connected to the rear cover (54); an auger (55) is rotatably mounted at the center of the front side wall of the rear cover (54); a connecting groove (56) is provided at the front end of the auger (55); and the auger (55) is horizontally inserted into the outside of the transmission rod (52) through the connecting groove (56); an internal thread (57) is provided on the inner wall of the front section of the connecting groove (56); and the threaded section (53) is threadably connected to the inner side of the front section of the connecting groove (56) through the internal thread (57), so that the transmission rod (52) and the auger (55) are installed and connected; a rotary handle (58) is rotatably mounted at the center of the rear side surface of the rear cover (54); and the rotary handle (58) is connected to the rear end of the auger (55).

2. According to claim 1, a heating mechanism for producing EVA foam injection particles, characterized in that: The length of the transmission rod (52) is at least 80% of the length of the heating pipe (1), and the connecting groove (56) matches the length of the transmission rod (52).

3. A heating mechanism for producing EVA foam injection particles according to claim 1, characterized in that: The length of the threaded section (53) is not less than 10 cm, and the length of the internal thread (57) matches that of the threaded section (53).

4. The heating mechanism for producing EVA foam injection particles according to claim 1, characterized in that: A protective cover (59) is hingedly mounted on the upper end of the rear side surface of the rear cover (54), and the protective cover (59) covers the outside of the rotating handle (58) when closed.

5. The heating mechanism for producing EVA foam injection particles according to claim 1, characterized in that: The motor (51) has a power-off self-locking function.

6. The heating mechanism for producing EVA foam injection particles according to claim 1, characterized in that: The rotation direction of the auger (55) during operation is consistent with the rotation direction of the threaded section (53) screwed into the internal thread (57).

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