A rapid assembly and disassembly heating method for a hot runner in the form of a heating rod

Abstract

This invention belongs to the field of hot runner technology, and particularly relates to a rapid assembly and disassembly heating method for a heating rod-type hot runner. The invention includes an upper cover seat with an injection port on top and flow channel holes within it. A support seat is located below the upper cover seat, with a first positioning block and a second positioning block at both ends. The first and second positioning blocks clamp the upper cover seat. A placement groove is formed within the support seat, and a limiting block, a wire, a flow divider, and a heating rod are located inside the groove. The wire is connected to an external heating controller. A support base is located below the support seat. This invention utilizes a heating rod, resulting in higher heating efficiency. The heating rod can be easily inserted into the hole, making assembly and disassembly convenient. The heating rod installation method does not require mold disassembly, simplifying maintenance and greatly improving production efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of hot runner, and relates to a heating rod type hot runner quick dismounting and heating method. BACKGROUND

[0002] The hot runner is used for keeping the plastic in the runner and the sprue in a molten state through heating, and the entire runner from the injection molding machine barrel outlet to the sprue is in a high temperature state due to the heating rod and the heating ring arranged near or in the center of the runner, so that the plastic in the runner is kept molten, and generally no condensed material needs to be taken out of the runner after shutdown, and only the runner needs to be heated to the required temperature before starting. The existing hot runner manifold plate heating adopts heating strip inlay heating, and the following defects exist: 1. The heating strip heating mode needs to inlay the heating strip on the manifold plate, the diameter of the heating strip is generally small, and the internal injection liquid solidification phenomenon is caused due to low heating efficiency; 2. The heating strip inlay groove is processed from the front, and the section is a long eight-groove shape, and the real contact surface is only a semicircle, so that the heat conduction capacity is limited; 3. The installation mode, the heating strip needs to be inlaid into the manifold plate by knocking, and in the operation process, the heating strip is easily damaged or loose, and the heating efficiency is affected; 4. Disassembly and maintenance, the heating strip inlay mode needs to be bent and knocked during installation, the service life is shortened, and when the heating strip needs to be replaced, the relatively complex multi-cavity mold is used, the heating strip is generally inlaid on the upper and lower surfaces of the manifold plate, and when one or more of the heating strips are damaged, the entire hot runner part needs to be disassembled and assembled, and professional mold workers are needed to disassemble and assemble, so that the maintenance work is large and complicated. Therefore, the heating rod type hot runner quick dismounting and heating method is provided for the above problems. SUMMARY

[0003] The application aims at the above problems, and provides a heating rod type hot runner quick dismounting and heating method.

[0004] To achieve the above object, the application adopts the following technical scheme:

[0005] The application discloses a heating rod type hot runner quick dismounting and heating method, which comprises an upper cover seat, a plastic injection port fixedly connected to the center of the upper cover seat, and a flow channel hole formed in the center of the upper cover seat and the plastic injection port, a bearing seat arranged below the upper cover seat and extending beyond the upper cover seat at both ends, a first positioning block and a second positioning block arranged above both ends of the bearing seat and clamping both ends of the upper cover seat, a limiting block upper part and a flow channel block arranged in the bottom of the upper cover seat, the flow channel block being arranged above the center of the limiting block, the center of the flow channel block and the center of the limiting block being provided with flow channel holes, wires arranged in the limiting block and the lower part of the limiting block being arranged in the middle of the bearing seat, a placing groove formed in the bearing seat and provided with triangular positioning columns, a flow distribution plate arranged in the placing groove and provided with the triangular positioning columns, the flow distribution plate being horizontally inserted with heating rods, the extending sections of the heating rods being arranged in the other two ends of the bearing seat, the other two ends of the bearing seat being provided with heat preservation sheets, a heating controller being arranged on the first positioning block and connected with the wires, and a supporting seat being arranged below the bearing seat.

[0006] In the heating rod type hot runner quick dismounting and heating method, the upper cover seat is fixedly connected with the plastic injection port at the center, flow channel holes are formed in the center of the upper cover seat and the plastic injection port, an upper groove is formed in the middle of the bottom of the upper cover seat and is communicated with the flow channel holes, the top and the back of the upper cover seat are fixedly connected with the top and the back of the bearing seat, and the front end and the back end of the upper cover seat are longer than the front end and the back end of the bearing seat.

[0007] In the heating rod type hot runner quick dismounting and heating method, the middle of the bearing seat is provided with a placing groove, the top of the placing groove is tightly combined with the bottom of the upper cover seat, the two ends of the bearing seat are extended, the upper planes of the two extended ends are fixedly connected with the bottom of the first positioning block and the bottom of the second positioning block, the inner sides of the first positioning block and the second positioning block are fixedly connected with the two ends of the upper cover seat, and the upper planes of the first positioning block and the second positioning block are flush with the upper plane of the upper cover seat.

[0008] In the heating rod type hot runner quick dismounting and heating method, the flow channel block is inserted into the center of the upper groove and is fixedly connected, the bottom of the flow channel block is fixedly connected with the center of the limiting block, flow channel holes are formed in the flow channel block and the limiting block, and the flow channel block is communicated with the plastic injection port.

[0009] In the heating rod type hot runner quick dismounting and heating method, the upper part of the limiting block is clamped in the upper groove, the wires are inserted into the limiting block, the wires are sealed between the upper part of the limiting block and the bottom of the upper groove, and the two ends of the wires are connected with the first positioning block and the second positioning block.

[0010] In the heating rod type hot runner quick dismounting and heating method, a U-shaped opening is formed at the joint between the outer side of the second positioning block and the outer side of the bearing seat, a heating controller is fixedly connected in the U-shaped opening, wires are connected to the heating controller, and the heating controller is externally connected to a control device.

[0011] In the heating rod type hot runner quick dismounting and heating method, three protruding blocks are arranged in the middle of the placing groove, a flow channel hole is formed in the middle protruding block, and there is a gap between the upper surfaces of the three protruding blocks and the bottom of the limiting block.

[0012] In the heating rod type hot runner quick dismounting and heating method, a plurality of triangular positioning columns are fixedly connected to the bottom of the placing groove in a upward direction, the top of the triangular positioning column is tightly attached to the bottom of the upper cover seat, four flow distribution plates are clamped in the placing groove, and the four flow distribution plates are arranged on both sides of the protruding blocks.

[0013] In the heating rod type hot runner quick dismounting and heating method, a plurality of heating rods are inserted into the flow distribution plates and pass through the triangular positioning columns, one end of the heating rod is inserted into the front end and the back end of the bearing seat, and the other end of the heating rod is inserted into the protruding block.

[0014] In the heating rod type hot runner quick dismounting and heating method, a plurality of triangular positioning columns are fixedly connected to the bottom of the placing groove in a upward direction, the top of the triangular positioning column is tightly attached to the bottom of the upper cover seat, four flow distribution plates are clamped in the placing groove, and the four flow distribution plates are arranged on both sides of the protruding blocks.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] The upper cover seat is provided with an injection port, and flow channel holes are arranged in the injection port and the upper cover seat, a bearing seat is arranged below the upper cover seat, first and second positioning blocks are arranged at the two ends of the bearing seat, the first and second positioning blocks clamp the upper cover seat, a placing groove is formed in the bearing seat, limiting blocks, wires, flow distribution plates and heating rods are arranged in the placing groove, the wires are externally connected to a heating controller, and a support seat is arranged below the bearing seat.

[0017] 1. The diameter of the heating rod is large enough, and the heating efficiency is higher.

[0018] 2. The processing interface of the heating plate is a complete circle, and the contact surface is also a complete circle, which greatly improves the heat conduction capacity.

[0019] 3. The heating rod is easy to install, and can be installed by being inserted into the matching hole.

[0020] 4、The heating rod is a finished product for purchase, and does not need to be bent and knocked, and has a long service life, and the heating rod mounting mode of the invention does not need to disassemble the mold, and can be directly pulled out from the operating side and the non-operating side on the machine, replace the new heating rod, and insert it back, the mode is simple and fast in operation, convenient in maintenance, and greatly improves the production efficiency.

[0021] Other advantages, objects, and features of the present application will be apparent from the following description, and will be understood by those skilled in the art. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is the overall schematic diagram of the present application;

[0023] Figure 2 is the overall exploded top view schematic diagram of the present application;

[0024] Figure 3 is the overall exploded bottom view schematic diagram of the present application;

[0025] Figure 4 is the internal top view schematic diagram of the bearing seat of the present application;

[0026] Figure 5 is the bottom view schematic diagram of the upper cover seat of the present application;

[0027] Figure 6 is the top view schematic diagram of the flow distribution plate of the present application;

[0028] Figure 7 is the side view schematic diagram of the flow distribution plate of the present application.

[0029] In the figure: 1, upper cover seat; 2, bearing seat; 21, placing groove; 3, support seat; 4, first positioning block; 41, U-shaped opening; 5, second positioning block; 6, injection molding port; 7, flow distribution plate; 8, heating rod; 9, heating controller; 10, heat preservation sheet; 11, upper groove; 12, limiting block; 13, wire; 14, triangular positioning column; 15, flow channel hole; 16, positioning hole; 17, flow channel block; 18, protruding block. DETAILED DESCRIPTION

[0030] The present application will be further described below in conjunction with the drawings.

[0031] As Figures 1-7As shown, a method for quick assembly and disassembly of a hot runner in the form of a heating rod includes an upper cover 1. An injection port 6 is located at the center of the upper cover 1, and a flow channel hole 15 is formed within the center of the upper cover 1. A support seat 2 is located below the upper cover 1, with both ends of the support seat 2 extending beyond the upper cover 1. A first positioning block 4 and a second positioning block 5 are respectively located above both ends of the support seat 2, clamping the two ends of the upper cover 1 between the first positioning block 4 and the second positioning block 5. A limiting block 12 and a flow channel block 17 are located within the bottom of the upper cover 1, with the flow channel block 17 positioned above the center of the limiting block 12. Both the flow channel block 17 and the limiting block 12 have a centrally located... The support has a flow channel hole 15. The limiting block 12 is provided with a wire 13. The lower part of the limiting block 12 is placed in the middle of the support seat 2. The support seat 2 has a placement groove 21 and a triangular positioning post 14. The placement groove 21 is placed with a flow divider 7 and the triangular positioning post 14 is inserted into the flow divider 7. The flow divider 7 is horizontally inserted with a heating rod 8. The extended part of the heating rod 8 is placed in the other two ends of the support seat 2. The other two ends of the support seat 2 are provided with heat insulation sheets 10. The first positioning block 4 is equipped with a heating controller 9 and the heating controller 9 is connected to the wire 13. The support seat 2 is provided with a support base 3 below it.

[0032] The injection port 6 is fixedly connected to the center of the upper cover 1, and both the center of the upper cover 1 and the injection port 6 are provided with flow channel holes 15. The bottom center of the upper cover 1 is provided with an upper groove 11, and the flow channel holes 15 are connected in the upper groove 11. The bottom peripheral side of the upper cover 1 is fixedly connected to the top peripheral side of the support seat 2, and the front and back ends of the upper cover 1 extend beyond the front and back ends of the support seat 2.

[0033] A flow channel hole 15 is provided in the upper cover 1, and an injection port 6 is provided above the upper cover 1 at the flow channel hole 15. The entire interior of the device is injected through the injection port 6. A support seat 2 is provided below the upper cover 1, so that a hot runner device structure is installed inside the upper cover 1 and the support seat 2, so that it can play its role after being injected into the interior.

[0034] Furthermore, a placement groove 21 is provided in the middle of the support seat 2, and the top periphery of the placement groove 21 is tightly fitted with the bottom surface of the upper cover seat 1. The two ends of the support seat 2 extend out, and the upper surface of the extended ends is fixedly connected to the bottom of the first positioning block 4 and the bottom of the second positioning block 5, respectively. The inner side of the first positioning block 4 and the inner side of the second positioning block 5 are both fixedly connected to the two sides of the upper cover seat 1, and the upper surface of the first positioning block 4 and the upper surface of the second positioning block 5 are flush with the upper surface of the upper cover seat 1.

[0035] A first positioning block 4 and a second positioning block 5 are respectively provided at both ends of the bearing seat 2. The first positioning block 4 and the second positioning block 5 are used to fix and seal the upper cover seat 1 at both ends, so that the entire device will not leak liquid at both ends.

[0036] The flow channel block 17 is fixedly connected by being inserted into the center of the upper groove 11, the bottom of the flow channel block 17 is fixedly connected to the center of the limiting block 12, flow channel holes 15 are formed in the flow channel block 17 and the limiting block 12, the flow channel block 17 is communicated with the injection molding port 6, and the limiting block 12 is perpendicular to the first positioning block 4 and the second positioning block 5.

[0037] Further, the upper part of the limiting block 12 is clamped in the upper groove 11, the limiting block 12 is inlaid with the lead wire 13 above, and the lead wire 13 is sealed between the upper part of the limiting block 12 and the bottom of the upper groove 11, and the two ends of the lead wire 13 are connected to the first positioning block 4 and the second positioning block 5.

[0038] Further, a U-shaped opening 41 is formed at the joint between the outer side of the second positioning block 5 and the outer side of the bearing seat 2, the heating controller 9 is fixedly connected in the U-shaped opening 41, the lead wire 13 is connected to the heating controller 9, and the heating controller 9 is externally connected.

[0039] The limiting block 12 and the flow channel block 17 are installed in the upper groove 11, when the injection liquid flows downward through the injection molding port 6 to the flow channel block 17 and the limiting block 12, and the injection liquid flows through both, because the lead wire 13 is inlaid above the limiting block 12, the injection liquid does not contact the lead wire 13, avoiding the lead wire 13 from being broken, and the lead wire 13 provides an electrical signal through the heating controller 9 on one side of the first positioning block 4.

[0040] Three protruding blocks 18 are arranged in the middle of the placement groove 21, and flow channel holes 15 are formed in the middle protruding block 18, and there is a gap between the upper surface of the three protruding blocks 18 and the bottom of the limiting block 12.

[0041] The three protruding blocks 18 are arranged in the placement groove 21, so that the interior of the placement groove 21 is divided into two parts, so that when the injection liquid enters, the injection liquid is also equally divided into the interior of the device.

[0042] Further, a plurality of triangular positioning columns 14 are fixedly connected to the bottom of the placement groove 21, the top of the triangular positioning column 14 is tightly attached to the bottom of the upper cover seat 1, four distribution plates 7 are clamped in the placement groove 21, and the four distribution plates 7 are arranged on both sides of the protruding block 18.

[0043] The distribution plates 7 are separated by the protruding blocks 18, so that the distribution plates 7 are arranged in order in the placement groove 21, so that the heat in the distribution plates 7 is evenly distributed, so that the interior can be heated.

[0044] Positioning holes 16 are formed in the distribution plates 7, the triangular positioning columns 14 are inserted into the positioning holes 16, a plurality of heating rods 8 are inserted into the distribution plates 7, the heating rods 8 are inserted between the triangular positioning columns 14, one end of the heating rod 8 is inserted into the front end and the back end of the bearing seat 2, and the other end of the heating rod 8 is inserted into the protruding block 18.

[0045] After inserting a plurality of heating rods 8 in the flow distribution plate 7, and the two ends of the heating rods 8 are beyond the side of the flow distribution plate 7, the exceeding ends are inserted into the bearing seat 2 and the protruding block 18 respectively, so that the bearing seat 2 and the protruding block 18 have heating effect inside.

[0046] The bearing seat 2 is fixedly connected with the support seat 3 through the bottom, and a plurality of through holes are arranged in the bearing seat 2 and the support seat 3, and the bearing seat 2 is communicated with the support seat 3.

[0047] The support seat 3 is arranged below the bearing seat 2, and a plurality of through holes are arranged in the bearing seat 2 and the support seat 3, and the bearing seat 2 is communicated with the support seat 3.

[0048] Working principle:

[0049] The injection port 6 is arranged above the upper cover seat 1, and a flow channel hole 15 is arranged in the injection port 6 and the upper cover seat 1, so that the injection liquid is provided to the inside of the whole device through the flow channel hole 15 from the injection port 6, the bearing seat 2 is arranged below the upper cover seat 1, and the first positioning block 4 and the second positioning block 5 are arranged at the two ends of the bearing seat 2, and the first positioning block 4 and the second positioning block 5 are fixedly connected with the two ends of the upper cover seat 1, so that the upper cover seat 1 and the bearing seat 2 do not leak liquid when injecting, the upper recess 11 is arranged at the bottom of the upper cover seat 1, and the limiting block 12 and the flow channel block 17 are arranged in the upper recess 11, and the wire 13 is arranged in the limiting block 12, the heating controller 9 is arranged at the side of the first positioning block 4 and the bearing seat 2, the wire 13 is connected with the heating controller 9, the placing groove 21 is arranged in the bearing seat 2, so that the inside between the bearing seat 2 and the upper cover seat 1 forms a hot runner structure cavity, the flow distribution plate 7 is arranged in the placing groove 21, and a plurality of heating rods 8 are inserted in the flow distribution plate 7, the heating rods 8 are connected with the wire 13, the heating controller 9 is used to work the heating rods 8, and one end of the heating rods 8 is inserted into the front end and the back end of the bearing seat 2, and the other end of the heating rods 8 is inserted into the protruding block 18 in the placing groove 21, so that the inside of the whole device is uniformly heated.

[0050] The specific embodiments described herein merely exemplify the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without departing from the spirit of the present application.

[0051] Although the terms 1, upper cover seat; 2, bearing seat; 21, placing groove; 3, support seat; 4, first positioning block; 41, U-shaped opening; 5, second positioning block; 6, injection mouthpiece; 7, flow distribution plate; 8, heating rod; 9, heating controller; 10, heat preservation sheet; 11, upper groove; 12, limiting block; 13, wire; 14, triangular positioning column; 15, flow channel hole; 16, positioning hole; 17, flow channel block; 18, protruding block, etc. are used more in this article, the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the present application, and any kind of additional limitation by interpreting them is contrary to the spirit of the present application.

Claims

1. A hot runner quick dismounting heating method in the form of a heating rod, which is realized on the basis of a structure comprising an upper cover seat (1), characterized in that: The upper cover seat (1) is provided with an injection port piece (6) at the center of the upper cover seat (1), and a flow channel hole (15) is formed in the center of the upper cover seat (1); the upper cover seat (1) is provided with a bearing seat (2) below the upper cover seat (1), and the bearing seat (2) extends beyond the upper cover seat (1) at both ends; the bearing seat (2) is provided with a first positioning block (4) and a second positioning block (5) above both ends of the bearing seat (2), and the first positioning block (4) and the second positioning block (5) clamp the upper cover seat (1) at both ends; the bottom of the upper cover seat (1) is provided with an upper part of a limiting block (12) and a flow channel block (17), the flow channel block (17) is arranged above the center of the limiting block (12), and the center of the flow channel block (17) and the center of the limiting block (12) are provided with flow channel holes (15); the limiting block (12) is provided with a wire (13), and the lower part of the limiting block (12) is arranged in the middle part of the bearing seat (2); the bearing seat (2) is provided with a placing groove (21), and the placing groove (21) is provided with a triangular positioning column (14); the placing groove (21) is provided with a flow distribution plate (7), and the flow distribution plate (7) is provided with a triangular positioning column (14); the flow distribution plate (7) is provided with a heating rod (8) transversely, and the extending part of the heating rod (8) is arranged in the other two ends of the bearing seat (2), and the other two ends of the bearing seat (2) are provided with heat preservation sheets (10); the first positioning block (4) is provided with a heating controller (9), and the heating controller (9) is connected with the wire (13); the bearing seat (2) is provided with a support seat (3) below the bearing seat (2), and the heating rod does not need to be disassembled when being installed, and the new heating rod can be directly pulled out from the operation side and the non-operation side, replaced and inserted back on the machine; the heating rod (8) is connected with the wire (13), and the heating controller (9) is used to work on the heating rod (8).

2. A method of heating a hot runner in the form of a heating bar according to claim 1, characterized in that: The upper cover seat (1) is provided with an injection port piece (6) at the center of the upper cover seat (1), and a flow channel hole (15) is formed in the center of the upper cover seat (1); the upper cover seat (1) is provided with an upper recess (11) in the middle of the bottom of the upper cover seat (1), and the upper recess (11) is communicated with the flow channel hole (15); the upper cover seat (1) is fixedly connected with the top peripheral surface of the bearing seat (2) on the bottom peripheral surface of the upper cover seat (1), and the front end and the back end of the upper cover seat (1) extend beyond the front end and the back end of the bearing seat (2).

3. A method of heating a hot runner in the form of a heating bar according to claim 2, characterized in that: The bearing seat (2) is provided with a placing groove (21) in the middle of the bearing seat (2), and the top peripheral surface of the placing groove (21) is tightly combined with the bottom surface of the upper cover seat (1); the bearing seat (2) extends at both ends, and the upper planes of the extending ends are fixedly connected with the bottom of the first positioning block (4) and the bottom of the second positioning block (5); the inner side surface of the first positioning block (4) and the inner side surface of the second positioning block (5) are fixedly connected with the side surfaces of the upper cover seat (1) at both ends; and the upper planes of the first positioning block (4) and the second positioning block (5) are flush with the upper plane of the upper cover seat (1).

4. The hot runner quick change heating method in the form of a heating bar according to claim 3, characterized in that: The upper groove (11) is centrally inserted into the flow channel block (17) fixedly connected, the bottom of the flow channel block (17) is fixedly connected with the center of the limiting block (12), and the flow channel block (17) and the limiting block (12) are both provided with flow channel holes (15), and the flow channel block (17) is communicated with the injection molding port (6) inside, and the limiting block (12) is perpendicular to the first positioning block (4) and the second positioning block (5) at both ends.

5. A method of heating a hot runner in the form of a heating bar according to claim 4, characterized in that: The limiting block (12) is inserted into the upper groove (11), the limiting block (12) is inserted into the wire (13) above, and the limiting block (12) is sealed with the wire (13) between the upper groove (11) and the bottom, and the wire (13) is connected with the first positioning block (4) and the second positioning block (5) at both ends.

6. A method of heating a hot runner in the form of a heating bar according to claim 5, characterized in that: The U-shaped opening (41) is provided at the joint of the outer side of the first positioning block (4) and the outer side of the bearing seat (2), the heating controller (9) is fixedly connected in the U-shaped opening (41), the heating controller (9) is connected with the wire (13), and the heating controller (9) is connected with the control.

7. A method of heating a hot runner in the form of a heating bar according to claim 6, characterized in that: The middle part of the placing groove (21) is provided with three protruding blocks (18), the flow channel holes (15) are formed in the middle protruding block (18), and there is a gap between the upper surface of the three protruding blocks (18) and the bottom of the limiting block (12).

8. The hot runner quick change heating method in the form of a heating bar according to claim 7, characterized in that: The bottom of the placing groove (21) is fixedly connected with a plurality of triangular positioning columns (14) upward, the top of the triangular positioning column (14) is tightly attached to the bottom of the upper cover seat (1), four shunt plates (7) are inserted into the placing groove (21), and the four shunt plates (7) are arranged on both sides of the protruding block (18).

9. The hot runner quick change heating method in the form of a heating bar according to claim 8, characterized in that: The shunt plate (7) is provided with a positioning hole (16), and the positioning hole (16) is inserted into the triangular positioning column (14), a plurality of heating rods (8) are inserted into the shunt plate (7), and the heating rods (8) are inserted between the triangular positioning columns (14), one end of the heating rod (8) is inserted into the front end and the back end of the bearing seat (2), and the other end of the heating rod (8) is inserted into the protruding block (18).

10. The hot runner quick change heating method in the form of a heating bar according to claim 9, characterized in that: The bottom of the bearing seat (2) is fixedly connected with the support seat (3), and a plurality of through holes are formed in the bearing seat (2) and the support seat (3), and the inside of the bearing seat (2) is communicated with the support seat (3).

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