Nozzle heater of injection molding machine
By designing a nozzle heater in the injection molding machine and heating the nozzle body with a heating ring, the problem of nozzle blockage is solved, and a safer and simpler drainage process is achieved.
Patent Information
- Application Number
- CN202421134288.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-01-10
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing injection molding machine is prone to blockage in the injection nozzle during use. The existing solution is to use fire to clear the fire, which is troublesome and poses a threat to the safety of maintenance personnel.
A injection molding machine nozzle heater is designed, including a fixing plate, injection molding body, junction box and heating ring. The injection molding machine controller starts the heating ring to heat the injection molding body, melting the blocked plastic to clear the injection molding nozzle.
Compared with the existing burning method, the new heater is safer, simplifying the throughput nozzle and improving operational safety.
Smart Images
Figure CN222328965U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection molding machines, in particular to a nozzle heater for an injection molding machine. Background Art
[0002] Injection molding machine is also called injection molding machine or injection machine. It is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It is divided into vertical, horizontal and all-electric types. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it ejected and fill the mold cavity.
[0003] However, the injection molding machine of the prior art is prone to nozzle blockage during use. Most maintenance personnel directly use fire to burn the nozzle. The nozzle can only be unblocked after the plastic in the nozzle is melted. However, this method is more troublesome and will also have a certain impact on the life safety of the maintenance personnel. Utility Model Content
[0004] The utility model aims to provide a nozzle heater for an injection molding machine to solve the problems raised in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A nozzle heater for an injection molding machine includes a fixing plate, a nozzle body, a junction box, and a nozzle port. The top of the fixing plate is located inside the injection molding machine, and the nozzle body is connected to the center of the bottom of the fixing plate by a thread. The bottom of the nozzle body is connected to the nozzle port by a thread, and the bottom back of the fixing plate is fixedly connected to the junction box. Interfaces are provided at both ends of the front of the junction box, and the two interfaces are respectively connected to a first connecting wire and a second connecting wire. A first heating coil is provided at the other end of the first connecting wire, and a second heating coil is provided at the other end of the second connecting wire. A fixing coil is provided on the surface of the nozzle body, and the first heating coil and the second heating coil are provided on the top of the fixing coil.
[0007] Preferably, a bus is provided on the back of the junction box, and the other end of the bus is connected to the injection molding machine controller.
[0008] Preferably, first fixing plates are provided at both ends of the first heating coil, and second fixing plates are provided at both ends of the second heating coil. The first fixing plates and the second fixing plates are in contact with each other on the same vertical plane, and the first fixing plates and the second fixing plates are connected by fixing bolts.
[0009] Preferably, heating wires are provided inside the first heating coil and the second heating coil.
[0010] Preferably, the inner surface diameter of the combination of the first heating coil and the second heating coil matches the diameter of the nozzle body.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The utility model discloses an injection molding machine nozzle heater. A fixing ring is arranged at the injection molding machine nozzle in the prior art. A first heating ring and a second heating ring are arranged on the top of the fixing ring. The inner surfaces of the first heating ring and the second heating ring are connected to the nozzle body. When the inside of the nozzle body is blocked, the first heating ring and the second heating ring are started by the injection molding machine controller to heat the nozzle body. Compared with the prior art of burning with fire, the nozzle body is safer. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 It is a schematic diagram of the nozzle heater structure of the utility model.
[0015] In the figure: 1. fixing plate; 2. nozzle body; 3. junction box; 4. bus; 5. nozzle port; 6. fixing ring; 7. first heating ring; 8. second heating ring; 9. first connecting wire; 10. second connecting wire; 11. first fixing plate; 12. second fixing plate; 13. fixing bolts. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0017] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0018] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0019] See also Figure 1-2 , the utility model provides a technical solution:
[0020] A nozzle heater for an injection molding machine comprises a fixing plate 1, a nozzle body 2, a junction box 3, and a nozzle port 5. The top of the fixing plate 1 is located inside the injection molding machine, and the nozzle body 2 is threadedly connected to the bottom center of the fixing plate 1. The bottom of the nozzle body 2 is threadedly connected to the nozzle port 5, the bottom back of the fixing plate 1 is fixedly connected to the junction box 3, interfaces are arranged at both ends of the front of the junction box 3, and the two interfaces are respectively connected to a first connecting line 9 and a second connecting line 10, a first heating coil 7 is arranged at the other end of the first connecting line 9, and a second heating coil 8 is arranged at the other end of the second connecting line 10, a fixing coil 6 is arranged on the surface of the nozzle body 2, and the first heating coil 7 and the second heating coil 8 are arranged on the top of the fixing coil 6.
[0021] Furthermore, a bus 4 is provided on the back of the junction box 3, and the other end of the bus 4 is connected to the injection molding machine controller.
[0022] Furthermore, first fixing plates 11 are provided at both ends of the first heating coil 7, and second fixing plates 12 are provided at both ends of the second heating coil 8. The first fixing plates 11 and the second fixing plates 12 are in contact with each other on the same vertical plane, and the first fixing plates 11 and the second fixing plates 12 are connected by fixing bolts 13.
[0023] Furthermore, heating wires are arranged inside the first heating coil 7 and the second heating coil 8 .
[0024] Furthermore, the inner surface diameter of the combination of the first heating coil 7 and the second heating coil 8 matches the diameter of the nozzle body 2 .
[0025] Working principle: 1 In the prior art, the nozzle of the injection molding machine is divided into a nozzle body 2 and a nozzle port 5. For the blockage of the nozzle port 5, the prior art generally solves it by unscrewing the nozzle port 5 and replacing it with a new one. This is the prior art, and the specific connection method between the nozzle body 2 and the nozzle port 5 will not be described in detail here. The utility model mainly considers the blockage of the nozzle body 2. After the nozzle body 2 is blocked, the staff shuts down the injection molding machine through the controller, and then connects the bus 4 through the controller again. After the power is turned on, the bus 4 will make the first heating coil 7 and the second heating coil 8 work. The first heating coil 7 and the second heating coil 8 will heat the internal heating wire during the working process, thereby increasing the internal temperature of the first heating coil 7 and the second heating coil 8, and then heating the nozzle body 2. During the heating process, the raw material that blocks the nozzle body 2 will be melted again, thereby clearing the nozzle body 2, which is safer than burning with fire in the prior art.
[0026] It should be noted that the heating principle of the first heating coil 7 and the second heating coil 8 is the same as the ceramic heating coil in the prior art, and the heating principle will not be described in detail here.
[0027] In addition, the nozzle body 2 is connected to the fixed plate 1 which is a part of the injection molding machine by means of threads, which is also the prior art. The specific structure of the connection between the fixed plate 1 and the nozzle body 2 will not be described in detail here.
[0028] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A nozzle heater for an injection molding machine, comprising a fixing plate (1), a nozzle body (2), a junction box (3), and a nozzle port (5), characterized in that: The top of the fixed plate (1) is located inside the injection molding machine, the bottom center of the fixed plate (1) is connected to a nozzle body (2) through a thread, the bottom of the nozzle body (2) is connected to a nozzle port (5) through a thread, the bottom back of the fixed plate (1) is fixedly connected to a junction box (3), the front ends of the junction box (3) are provided with interfaces, the two interfaces are respectively connected to a first connecting line (9) and a second connecting line (10), the other end of the first connecting line (9) is provided with a first heating coil (7), the other end of the second connecting line (10) is provided with a second heating coil (8), the surface of the nozzle body (2) is provided with a fixed ring (6), the top of the fixed ring (6) is provided with a first heating coil (7) and a second heating coil (8).
2. The nozzle heater of an injection molding machine according to claim 1, characterized in that: A bus (4) is arranged on the back of the junction box (3), and the other end of the bus (4) is connected to the injection molding machine controller.
3. The nozzle heater of an injection molding machine according to claim 1, characterized in that: A first fixing plate (11) is provided at both ends of the first heating coil (7), and a second fixing plate (12) is provided at both ends of the second heating coil (8); the first fixing plate (11) and the second fixing plate (12) are in contact with each other on the same vertical plane, and the first fixing plate (11) and the second fixing plate (12) are connected by fixing bolts (13).
4. The nozzle heater of an injection molding machine according to claim 1, characterized in that: Heating wires are arranged inside the first heating coil (7) and the second heating coil (8).
5. The nozzle heater for an injection molding machine according to claim 1, characterized in that: The inner surface diameter of the combination of the first heating coil (7) and the second heating coil (8) matches the diameter of the nozzle body (2).