A positioning hot nozzle processing process and a positioning hot nozzle

Abstract

The present application relates to the field of hot nozzle structure, and particularly relates to a hot nozzle processing technology for positioning wire outlet and a hot nozzle for positioning wire outlet, the hot nozzle for positioning wire outlet comprises the following steps: marking a position for heating wire outlet on the hot nozzle, then processing an outlet groove with the outlet position as a starting point, setting the heating wire in the outlet groove, and leading one end of the heating wire out of the outlet position on the hot nozzle, so that the hot nozzle has a fixed outlet position, avoiding the problem that the outlet positions of the existing hot nozzles are not the same after being installed on the distributor plate, and then the problem that the hot runner plate needs to be hollowed out when the distributor plate with the hot nozzle is assembled to the hot runner plate, so as to reduce the processing time.

Description

Technical Field

[0001] This invention relates to the field of hot nozzle structures, and more specifically, to a hot nozzle manufacturing process for positioning and exiting the wire, and a hot nozzle for positioning and exiting the wire. Background Technology

[0002] Existing threaded hot nozzles are threadedly connected to manifolds. While the manifolds have threaded holes inside, the orientation of these holes varies, resulting in inconsistent nozzle exit directions when the hot nozzles are installed on the manifold, making it impossible to fix the direction. When the manifold with the hot nozzles is assembled onto the hot runner template, the area in the hot runner template corresponding to the nozzle exit point needs to be completely hollowed out to accommodate or facilitate the exit of the hot nozzle's wires. This allows space for the wires to be led out from within the hot runner template, but it increases labor time and material costs accordingly.

[0003] Therefore, existing technologies still have shortcomings and need further improvement. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to provide a hot nozzle processing technology and a hot nozzle positioning method for hot nozzles, thereby resolving the technical problem that the inconsistent hot nozzle exit directions in existing hot nozzles necessitate the removal of the hot nozzle from the hot runner template at the exit position.

[0005] The objective of this invention is achieved through the following technical solution: This invention provides a hot nozzle processing technology for positioning and exiting the nozzle, wherein the hot nozzle includes a hot nozzle body, and the hot nozzle body includes: The inlet is used for the plastic to enter the heating nozzle body; The dispensing nozzle is used to eject the plastic that enters the heating nozzle body. The processing technology includes the following steps: Mark the wire exit position on the hot nozzle body. The wire exit position is located at the end of the hot nozzle body near the inlet. Starting from the outlet position, a wire groove for wiring is machined along the side of the hot nozzle body, and the wire groove extends to the glue outlet end of the hot nozzle body.

[0006] Preferably, before marking the wire exit position on the hot nozzle body, the method further includes: The hot nozzle body is mounted on a marking fixture, which has a groove for mounting the hot nozzle body, and uniform graduations are provided around the groove.

[0007] Preferably, the marking fixture is provided with multiple different types of nozzle grooves.

[0008] Preferably, starting from the outlet position, a wire groove for wiring is machined on the hot nozzle body, specifically as follows: Starting from the outlet position, draw the machining route on the hot nozzle body; Starting from the outlet position, process the outlet groove along the processing route.

[0009] Preferably, the grooves are spirally arranged along the side of the hot nozzle body, wherein the density of the grooves at the glue outlet end of the hot nozzle body is greater than the density of the grooves at the glue inlet end of the hot nozzle body.

[0010] Preferably, the cable tray includes two parallel cable trays, which are connected at one end away from the cable outlet.

[0011] Preferably, a heating wire is arranged in the wire groove, and one end of the heating wire is led out from the wire outlet and further includes: Assemble the heating nozzle body, after installing the heating wire, into the manifold plate; Install the manifold plate into the hot runner template.

[0012] A positioning hot nozzle includes: a hot nozzle body, the hot nozzle body including an inlet and an outlet, and a wire groove for arranging heating wires is provided on the side of the hot nozzle body. The wire groove includes an outlet position starting from the inlet, the outlet position is located at the end of the hot nozzle body near the inlet, and the wire groove extends from the outlet position to the outlet end of the hot nozzle body.

[0013] Preferably, the grooves are spirally arranged along the side of the hot nozzle body, wherein the density of the grooves at the glue outlet end of the hot nozzle body is greater than the density of the grooves at the glue inlet end of the hot nozzle body.

[0014] Preferably, the cable tray includes two cable trays, which are connected at the end away from the cable outlet.

[0015] The beneficial effects of this invention are as follows: the position for the heating wire exit is marked on the hot nozzle, and then a wire exit groove is processed starting from this position. The heating wire is placed in the wire groove, and one end of the heating wire is led out from the wire exit position on the hot nozzle, so that the hot nozzle has a fixed wire exit position. This avoids the problem of inconsistent wire exit positions after the existing hot nozzle is installed on the hot runner template. In addition, it avoids the problem that the hot runner template needs to be hollowed out when the manifold plate with the hot nozzle is assembled to facilitate wire exit, thereby reducing processing time. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a structural diagram of existing technology; Figure 2 This is a schematic diagram of the structure of a hot runner template in the prior art. Figure 3 This is a structural diagram of the marking fixture of the present invention; Figure 4 This is a structural diagram of the marked positions in this invention; Figure 5 This is a structural diagram of the processed groove of the present invention; Figure 6 This is a schematic diagram of the structure of the hot nozzle of the present invention; Figure 7 This is a schematic diagram of the structure of the heating wire of the present invention installed to the heating nozzle. Figure 8 This is a schematic diagram of the structure of the hot nozzle of the present invention installed on the manifold; Figure 9 This is a schematic diagram of the hollowing out of the hot runner template of the present invention; Figure 10 This is a schematic diagram of the hot runner template of this utility model without hollowing out. Figure 11 This is a flowchart of the hot nozzle processing technology of the present invention.

[0017] The attached diagram is labeled as follows: 1-Heat nozzle body, 2-Outlet position, 3-Wire groove, 301 First wire groove, 302 Second wire groove, 4-Heating wire, 5-Marking clamp, 6-Nose groove, 7-Diverter plate, 8-Hot runner template, 9-Marking position, 10-Fastening sleeve, 11-Outlet channel. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0019] refer to Figure 1 and Figure 2 The existing hot runner nozzles have an uncertain exit direction for the heating wires 4. This means that when the manifold 7 with the hot runner nozzles is installed on the hot runner template 8, the middle of the hot runner template 8 needs to be hollowed out to allow the heating wires 4 to exit. For example, Figure 1 In this process, when the exit direction of the heating wire 4 is uncertain, it may exit from any direction around the circumference of the hot nozzle. After the hot nozzle is installed, the heating wire 4 on the hot nozzle will face the opposite direction to the exit channel 11 of the hot runner template 8 (or any direction that does not correspond to the exit channel 11). Therefore, it is necessary to hollow out the area of ​​the hot runner template 8 where the hot nozzle is installed to reserve space for the heating wire 4. (Refer to...) Figure 2 However, hollowing out the hot runner template 8 will increase the working time and material costs.

[0020] Based on the above issues, refer to Figure 6 and Figure 7 This application improves a hot runner with a fixed exit point, comprising a hot runner body 1, on which a wire groove 3 is provided. The hot runner body 1 includes an inlet and an outlet. One end of the inlet is used for plastic to enter the hot runner body 1, and the other end is used for injection molding. The wire groove 3 includes an exit point 2, located at the end of the hot runner body 1 near the inlet. The exit point 2 is used to lead out a heating wire 4 from the hot runner body 1. The wire groove 3 extends along the side of the hot runner body 1 from the exit point 2 to the outlet end of the hot runner body 1. By providing a fixed exit point 2 on the hot runner body 1, the heating wire 4 arranged on the hot runner body 1 can be fixedly led out from the exit point 2, avoiding the problem of needing to hollow out the hot runner plate to lead out the heating wire 4 when assembling the manifold 7 on which the hot runner body 1 is mounted to the hot runner template 8.

[0021] For example, heating wires 4 are arranged on the hot nozzle body 1, and then the hot nozzle body 1 of this application is installed on the manifold 7, with the heating wires 4 leading out from the outlet position 2 on the hot nozzle body 1. The manifold 7 is installed on the hot runner template 8. Since the hot nozzle body 1 has a fixed outlet position designed in place, when the hot nozzle body 1 is installed on the hot runner template 84, the outlet position 2 of the hot nozzle body 1 will be aligned with the outlet channel 11 of the hot runner template 8, so that the heating wires 4 can be led out from the outlet channel 11 of the hot runner template 8. If the hot nozzle body 1 does not have a fixed outlet position 2, the outlet direction of the heating wires 4 will be inconsistent. In order to make room for the heating wires 4, the hot runner template 8 needs to be hollowed out to allow the heating wires 4 to exit. The hot nozzle of this application avoids the problem of needing to hollow out the hot runner template 8 to allow the heating wires 4 to exit.

[0022] In some implementations, reference Figure 6 and Figure 7 The groove 3 is spirally arranged along the side of the hot nozzle body 1. The density of the groove 3 at the glue outlet end of the hot nozzle body 1 is greater than the density of the groove 3 at the glue inlet end of the hot nozzle body 1. The side with the higher density of the groove 3 can be used for multiple turns of the wire, which is convenient for the use of wires of different lengths.

[0023] For example, if the heating wire 4 is long but not required for use, the longer heating wire 4 can be wound several more times around the side of the groove 3 with higher density. This ensures that the length of the heating wire 4 meets the required length. If the heating wire 4 is short, it can be wound fewer times around the groove 3.

[0024] In some implementations, reference Figure 6 and Figure 7 The wire groove 3 comprises two independent grooves, which can be used to lead out different wires. Depending on the time requirements, the wire groove 3 can also be configured as multiple independent grooves for arranging wires.

[0025] refer to Figure 6 and Figure 7 The groove 3 includes two connected grooves 3. The two grooves 3 are connected at the ends away from their original positions. In actual processing, the tool can process the two grooves in one pass. The grooves include a first groove 301 and a second groove 302. The first groove 301 extends from the glue inlet side of the hot nozzle body 1 to the glue outlet side of the hot nozzle body 1. Then, the second groove 302 is formed from the glue outlet side of the hot nozzle body 1 to the glue inlet side of the hot nozzle body 1. The turning point is the connection between the first groove 1 and the second groove 302.

[0026] For example, starting from the outlet position of the first groove 301, the cutting tool moves along the side of the hot nozzle body 1 to the glue outlet side of the hot nozzle body 1, machining the groove 3 machined on the glue outlet side of the hot nozzle body 1, and then circles the hot nozzle body 1 several times. Then, starting from the connection point of the first groove 301 and the second groove 302, the cutting tool moves back to the glue inlet side of the hot nozzle body 1. In this process, the cutting tool only needs to make one pass, avoiding the need for multiple passes for multiple grooves.

[0027] refer to Figures 3 to 7 and Figure 11 The following is a processing method for processing the hot nozzle of this application. The hot nozzle body 1 includes a glue inlet and a glue outlet. The glue inlet is used for plastic to enter into the hot nozzle body 1, and the glue outlet is used for plastic to be sprayed out from the hot nozzle body 1.

[0028] The processing technology includes the following steps: S101: Mark the wire exit position 2 on the hot nozzle body 1. The wire exit position 2 is located at the end of the hot nozzle body 1 near the inlet. S102: Starting from the outlet position 2, a wire groove 3 for wiring is machined along the side of the hot nozzle body 1, and the wire groove 3 extends to the glue outlet end of the hot nozzle body 1. S103: Heating wire 4 is arranged in the online groove 3, and one end of the heating wire 4 is led out from the outlet position 2.

[0029] Specifically, the position for the heating wire 4 to exit is marked on the hot nozzle body 1. Then, a groove 3 is machined starting from the exit position 2. The heating wire 4 is placed in the groove 3, and one end of the heating wire 4 is led out from the exit position 2 on the hot nozzle body 1, so that the hot nozzle body 1 has a fixed exit position 2. This avoids the problem of inconsistent exit positions 2 after the existing hot nozzle body 1 is installed on the hot runner template 8. In addition, it avoids the problem that the existing hot runner template 8 needs to be hollowed out to facilitate wire exit, thereby reducing the processing time.

[0030] In some implementations, reference Figures 3 to 5 Before marking the outlet position 2 on the hot nozzle body 1, the following is also included: The hot nozzle body 1 is mounted on the marking fixture 5. The marking fixture 5 is provided with a nozzle groove 6 for mounting the hot nozzle body 1, and the periphery of the nozzle groove 6 is provided with uniform scale.

[0031] Specifically, before marking the wire exit position 2 on the hot nozzle body 1, a marking fixture 5 for marking the wire exit position 2 is prepared. The hot nozzle body 1 is installed on the marking fixture 5, and then the mark (marking position 9) of the wire exit position 2 is marked with a marker pen or other tools that can be used for marking. Then, the wire groove 3 is processed starting from the wire exit position 2.

[0032] The marking fixture 5 is provided with a groove 6, which is a cylindrical hole with threads inside. The heating nozzle body 1 is installed in the cylindrical hole and threadedly connected to the marking fixture 5. Uniform scales are engraved around the cylindrical hole, which can be used to mark corresponding angles. For example, after the heating nozzle body 1 is installed in the cylindrical hole and tightened, a mark is engraved at the 120° angle corresponding to the line exit position 2 (such as mark position 9). Then, a CNC machine tool is used to process the line exit position 2 as the starting point. The processing path is programmed into the CNC machine tool, and the CNC machine tool can follow the programmed path.

[0033] Install the hot nozzle body 1 with the processed wire groove 3 onto the manifold 7 and tighten it. As shown above, since the marking position 9 is marked at a 120° angle when the hot nozzle body 1 is tightened onto the marking fixture 5, when the hot nozzle body 1 is tightened onto the manifold 7 and the manifold 7 is fitted with the hot runner template 8, the heating wire 4 on the hot nozzle body 1 is just led out from the outlet channel 11 of the hot runner template 8. That is, according to the setting of the specific marking angle, when the hot nozzle body 1 is tightened onto the manifold 7 and the manifold 7 is fitted onto the hot runner template 8, the heating wire 4 on the hot nozzle body 1 can be led out from the outlet channel 11 of the hot runner template 8.

[0034] In actual use, after tightening the hot nozzle body 1 onto the marking fixture 5, markings can be made at any angle between 0-360°, depending on the actual conditions of the hot runner template 8 and the manifold 7. For example, a mark can be made at a 90° angle on the hot nozzle body 1, then the hot nozzle body 1 can be tightened onto the manifold 7, and the manifold 7 can be installed on the hot runner template 8. At this time, the outlet position of the hot nozzle body 1 is aligned with the outlet channel 11 of the hot runner template 8. Alternatively, a mark can be made at a 150° angle on the hot nozzle body 1, depending on the actual conditions of the hot runner template 8 and the manifold 7. After tightening the hot nozzle body 1 onto the manifold 7 and installing it on the hot runner template 8, the outlet position of the hot nozzle body 1 is aligned with the outlet channel 11 of the hot runner template 8.

[0035] The scale setting facilitates the subsequent machining of the wire groove 3, so as to determine the angle of the outlet position 2 of the hot nozzle body 1 after the diverter plate 7 is installed.

[0036] In some implementations, reference Figure 5 Multiple nozzle slots 6 are provided on the marking fixture 5. The multiple nozzle slots 6 are of different models so as to install hot nozzle bodies 1 of different diameters and adapt to the processing of different hot nozzle bodies 1.

[0037] In some implementations, reference Figure 4 Starting from the outlet position 2, a wire groove 3 for wiring is machined on the hot nozzle body 1, specifically as follows: Starting from point 2, draw the processing route on the hot nozzle body 1; Starting from point 2, process the outlet groove 3 along the processing route.

[0038] Specifically, in addition to machining with CNC machine tools, when machining with ordinary machine tools, the machining path can be drawn on the hot nozzle body 1. Then, the lathe operator takes the exit position 2 as the starting point and performs machining operations along the machining path. This path provides a reference for the lathe operator.

[0039] In some implementations, reference Figure 6 The groove 3 is spirally arranged along the side of the heating nozzle body 1. The density of the groove 3 at the glue outlet end of the heating nozzle body 1 is greater than the density of the groove 3 at the glue inlet end of the heating nozzle body 1. When the heating wire 4 is long but not needed, the longer heating wire 4 can be wound around the side of the groove 3 with a higher density several times to ensure that the length of the heating wire 4 meets the required length. If the heating wire 4 is short, it can be wound around the groove 3 with fewer turns.

[0040] In some implementations, reference Figure 6The wire trough 3 comprises two independent troughs 3, which can be used to lead out different wires. Depending on the time requirements, multiple independent troughs 3 can also be configured for arranging the wires. Furthermore, the wire trough 3 comprises two troughs 3, and the two troughs 3 are connected at the end furthest from the wire exit position. For details regarding the two connected troughs 3, please refer to the above description, which will not be repeated here.

[0041] In some implementations, reference Figures 7 to 7 A heating wire 4 is arranged in the wire groove 3. One end of the heating wire 4 is led out from the wire outlet 2 and includes: The heating nozzle body 1, after the heating wire 4 is installed, is assembled into the flow divider plate 7; Install the manifold 7 into the hot runner template 8.

[0042] Specifically, the hot nozzle body 1 of this application is installed into the manifold 7, and then the manifold 7 is installed into the hot runner template 8. The wire outlet position 2 on the hot nozzle body 1 is aligned with the wire outlet channel 11 of the hot runner template 8, so that the heating wire 4 on the hot nozzle body 1 can be led out from the wire outlet channel 11 of the hot runner template 8. By setting the wire outlet position 2 at a fixed position, the heating wire 4 on the hot nozzle body 1 can be led out from a fixed position after the hot nozzle body 1 is installed into the hot runner template 8, thus avoiding the existing problem of hollowing out the hot runner template 8.

[0043] The following describes the complete process of the hot nozzle machining technology for positioning the outlet in this application: Step 1: Reference Figure 3 Prepare a marking fixture 5 for mounting the hot nozzle body 1, and the hot nozzle body 1 with the groove 3 to be machined. The marking fixture 5 has different types of nozzle grooves 6, which can be used for hot nozzle bodies 1 with different threads. Each of the above nozzle grooves 6 is marked with equally divided graduations.

[0044] Step Two: Reference Figure 4 Install the hot nozzle body 1 of the wire groove 3 to be processed into the nozzle groove 6, tighten it with a normal torque wrench through the threaded connection, and mark the wire position 2 with a marker.

[0045] Step 3: Reference Figure 5 The hot nozzle body 1 with the marked exit line is used for CNC machine tool processing, and the exit line groove 3 is processed with the marked exit line position 2 as the starting point.

[0046] Step Four: Reference Figure 6 and Figure 7 The heating wire 4 is then installed on the heat nozzle body 1, which has been processed with the wire groove 3. Specifically, the heating wire 4 can be wound a certain number of turns on the wire groove 3 as needed. In addition, a fastening sleeve 10 is installed on the side of the wire groove 3 with higher density to secure the wire installed on the heat nozzle body 1.

[0047] Step 5: Reference Figure 8 The heating nozzle body 1 with the heating wire 4 assembled is installed in the distributor plate 7, wherein the heating wire 4 on the heating nozzle body 1 can be discharged in a specified direction.

[0048] Step Six: Reference Figure 9 The manifold 7, with the hot nozzle body 1 assembled, is installed in the hot runner template 8. Since the heating wire 4 is led out from the fixed outlet position 2 on the hot nozzle body 1, the outlet position 2 of the hot nozzle body 1 is aligned with the outlet channel 11 on the hot runner template 8. This ensures that the heating wire 4 on the hot nozzle body 1 is fixedly led out from the outlet channel 11 of the hot runner template 8, thus avoiding the problem of inconsistent outlet positions 2 of the heating wire 4 on the existing hot nozzle body 1, which necessitates hollowing out the hot runner template 8 to facilitate wire exit. (See reference...) Figure 9 and Figure 10 It is understood that the hot runner template 8 of this application does not need to be hollowed out to reserve space for the heating wires 4.

[0049] Furthermore, in existing hot runner templates 8, once hollowed out, the hollowed-out area cannot accommodate other structures in the hot runner system, such as ejector pins. However, the use of the hot nozzle body 1 in this application eliminates the need for hollowing out the hot runner template 8, allowing for a larger area on the hot runner template to accommodate other components, or to create more spacious intervals between components, thus preventing easy interference between them.

[0050] This application marks the position for the heating wire 4 to exit on the hot nozzle body 1, and then processes the wire groove 3 starting from the exit position 2, and sets the heating wire 4 in the wire groove 3. One end of the heating wire 4 is led out from the exit position 2 on the hot nozzle body 1, so that the hot nozzle body 1 has a fixed exit position 2, avoiding the problem of inconsistent exit positions 2 after the existing hot nozzle body 1 is installed on the manifold 7. This also avoids the problem that the existing hot runner template 8 needs to be hollowed out to facilitate wire exit, thereby reducing processing time.

[0051] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A hot tip processing procedure for positioning a wire, characterized in that, The hot nozzle includes a hot nozzle body, the hot nozzle body comprising: The inlet is used for the plastic to enter the heating nozzle body; The dispensing nozzle is used to eject the plastic that enters the heating nozzle body. The processing technology includes the following steps: The hot nozzle body is mounted on a marking fixture, which has a groove for mounting the hot nozzle body. The groove has uniform graduations around its periphery. The marking fixture has multiple grooves of different sizes. Mark the wire exit position on the hot nozzle body, and the wire exit position is located at the end of the hot nozzle body near the glue inlet; Starting from the outlet position, a wire groove for wiring is machined along the side of the hot nozzle body, and the wire groove extends to the glue outlet end of the hot nozzle body. A heating wire is arranged in the groove, and one end of the heating wire is led out from the outlet position.

2. The positioning of the hot nozzle machining process according to claim 1, characterized in that, Starting from the aforementioned outlet position, the process of machining a wire groove for wiring on the hot nozzle body specifically involves: Starting from the outlet position, draw the processing route on the hot nozzle body; Starting from the exit position, the groove is machined along the processing route.

3. The positioning of the hot nozzle machining process according to claim 1, characterized in that, The grooves are spirally arranged along the side of the hot nozzle body, wherein the density of the grooves at the glue outlet end of the hot nozzle body is greater than the density of the grooves at the glue inlet end of the hot nozzle body.

4. The positioning of the hot nozzle machining process according to claim 1, characterized in that, The cable tray includes two cable trays, and the two cable trays are connected at one end away from the outlet position.

5. The positioning of the hot nozzle processing process according to claim 1, characterized in that, Heating wires are arranged in the wire groove, and one end of the heating wires extends from the outlet position and further includes: The heating nozzle body, after the heating wire is installed, is assembled into the distributor plate; Install the manifold plate into the hot runner template.

6. A hot tip for positioning a wire, characterized in that include: The hot nozzle body includes an inlet and an outlet. A groove for arranging heating wires is provided on the side of the hot nozzle body. The groove includes an outlet position starting from the outlet position. The outlet position is located at the end of the hot nozzle body near the inlet. The outlet position is marked and determined by a marking fixture. The groove extends from the outlet position to the outlet position of the hot nozzle body. The grooves are spirally arranged along the side of the hot nozzle body, wherein the density of the grooves at the glue outlet end of the hot nozzle body is greater than the density of the grooves at the glue inlet end of the hot nozzle body; the grooves include two grooves, and the two grooves are connected at the end away from the wire outlet position.

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