Processing device and process of hot runner heater

Abstract

The hot runner heater machining device comprises a first mold body and a second mold body, a mold cavity is formed between the first mold body and the second mold body, the mold cavity is used for containing a heating part and communicates with a material injection opening, and the first mold body can move to be close to or away from the second mold body; the hot runner heater comprises a heater main body and a heating part, the heating part is embedded into the heater main body and comprises an arc-shaped part, the first mold body comprises an arc-shaped surface part, the arc-shaped surface part is one side surface of the mold cavity, and the arc-shaped part is close to the arc-shaped surface part. The invention provides a processing device and process of a hot runner heater, and the heating uniformity of a hot runner is improved.

Description

Technical Field

[0001] This invention relates to the field of hot runner heater technology, and more specifically, to a processing apparatus and process for a hot runner heater. Background Technology

[0002] Currently, the manifold of the hot runner is an integral piece. The manifold needs to be fitted with heating strips, which are embedded in the surface of the manifold. Since the manifold is irregularly shaped, it can only be slotted on the top and bottom sides to accommodate the heating strips. The heating uniformity of the heating strips on the manifold is poor. This problem can be solved by using a heater that forms uniform heating around the manifold. Therefore, equipment for producing such heaters is required. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a processing apparatus and process for a hot runner heater to improve the heating uniformity of the hot runner.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a processing device for a hot runner heater, comprising a first mold body and a second mold body, wherein a mold cavity is formed between the first mold body and the second mold body, the mold cavity is used to place a heating component, the mold cavity is connected to an injection port, and the first mold body is movable to move closer to or away from the second mold body; the hot runner heater comprises a heater body and a heating component, the heating component is embedded in the heater body, the heating component includes an arc-shaped portion, the first mold body includes an arc-shaped portion, the arc-shaped portion is one side of the mold cavity, and the arc-shaped portion is close to the arc-shaped portion.

[0005] Furthermore, the heating component includes a guide portion, the first mold body is provided with a second groove, the guide portion passes through the second groove, the second groove communicates with the mold cavity, and the second mold body includes a protrusion, the protrusion is inserted into the second groove so that the protrusion and the wall of the second groove clamp the guide portion.

[0006] Furthermore, it also includes a push rod that passes through the first mold body and can extend into the mold cavity.

[0007] Furthermore, it also includes a fixed plate, on which a guide rod is fixedly installed. The guide rod is slidably connected to a movable plate, which can move closer to or further away from the fixed plate. The movable plate is fixedly connected to the first mold body. A push rod passes through the movable plate and can move axially along the inner wall of the movable plate. The end of the push rod near the fixed plate extends out of the movable plate. The movement of the movable plate drives the push rod to move until the push rod abuts against the fixed plate, so that the fixed plate can push the push rod, thereby allowing the push rod to extend into the mold cavity. A collar is fixedly installed on the push rod, which is located on the side of the movable plate away from the fixed plate. A spring is sleeved on the push rod, with both ends of the spring abutting against the collar and the first mold body, respectively.

[0008] Furthermore, it also includes a base plate, with the second mold body fixedly connected to the base plate and the first mold body slidably connected to the base plate.

[0009] Furthermore, the heater body includes a first block, which has a groove, and the arc-shaped portion is embedded in the wall of the groove.

[0010] Furthermore, the heating component also includes a flat portion, and the heater body also includes a second block, with the flat portion embedded in the second block.

[0011] Furthermore, the heater body includes at least two heating blocks, which are joined together to form the heater body.

[0012] To achieve the above objectives, the present invention also employs the following technical solution: a processing method for a hot runner heater, used to process a heating block, comprising the following steps:

[0013] ① The heating element is made into a meandering shape;

[0014] ② Press the curved part into a curved shape;

[0015] ③ Move the first mold body to separate it from the second mold body, and install the heating component onto the first mold body;

[0016] ④ Move the first mold body to close the first mold body with the second mold body, forming a mold cavity between the first mold body and the second mold body, and the heating component is located inside the mold cavity;

[0017] ⑤ Molten metal is injected through the injection port and poured into the mold cavity to form a heating block;

[0018] ⑥ Move the first mold body to separate it from the second mold body for demolding.

[0019] In summary, the present invention has the following beneficial effects:

[0020] The hot runner heater, which is formed by the processing device of the hot runner heater, has an arc-shaped distribution along the outer wall of the flow divider component, which increases the heating density of the flow divider component. This solves the problem that the heating strips of the traditional hot runner plate can only be distributed on the upper and lower sides due to the inconvenience of processing. The heating efficiency of the flow divider component is improved, thereby improving product quality. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of Example 1;

[0022] Figure 2 This is a three-dimensional schematic diagram of the heating block in Example 1;

[0023] Figure 3 This is a three-dimensional schematic diagram of the heating component in Embodiment 1. Figure 1 ;

[0024] Figure 4 This is a cross-sectional view of Example 2. Figure 1 ;

[0025] Figure 5 This is a cross-sectional view of Example 2. Figure 2 ;

[0026] Figure 6 This is a partial three-dimensional schematic diagram of Example 3;

[0027] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0028] Figure 8 This is a side view of the first model in Embodiment 3;

[0029] Figure 9 This is a three-dimensional schematic diagram of Example 3;

[0030] Figure 10 for Figure 9 Enlarged view of point B in the middle;

[0031] Figure 11 This is a molding diagram of the mold cavity in the embodiment;

[0032] Figure 12 This is a three-dimensional schematic diagram of the heating component in Embodiment 1. Figure 2 .

[0033] Reference numerals: Heater body 1, heating block 11, first block 111, mounting hole 1111, second block 112, groove 113, heating component 12, flat part 121, arc-shaped part 122, meandering part 1221, straight part 1222, extension part 1223, guide part 123, flow divider 2, feed channel 21, glue injection channel 22, fixing sleeve 3, through hole 31, drive component one 4, first mold body 5, first groove 51, second groove 52, flat part 53, arc-shaped part 54, second mold body 6, protrusion 61, mold cavity 7, injection port 71, bottom plate 8, fixing plate 81, guide rod 811, moving plate 812, ejector rod 813, collar 814, spring 815, drive component two 82. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0035] Example 1:

[0036] like Figures 1-3As shown, this embodiment discloses a hot runner heater, including a heater body 1 and a heating element 12. The heater body 1 is made of a thermally conductive metal. Preferably, the heater body 1 is made of aluminum, which has a melting point of 660°C, much lower than that of copper, making it easy to cast. The heater body 1 is a cuboid, and has an axially penetrating groove 113. The heater body 1 includes a second block 112, which is flat and is disposed on both sides of the heater body 1.

[0037] The heater body 1 is cast onto the surface of the heating element 12, allowing the heating element 12 to be embedded within the heater body 1. The heating element 12 is made of copper and is formed by bending a copper strip. Specifically, the heater body 1 includes at least two heating blocks 11, which are joined together to form the heater body 1. Figure 3 , Figure 12 As shown, the heating component 12 includes a flat portion 121 and an arc-shaped portion 122. The heating block 11 includes a first block 111 and a second block 112. The arc-shaped portion 122 is embedded in the arc-shaped wall of the groove 113. The axis of the arc-shaped portion 122 is parallel to the axis of the groove 113. The arc-shaped portion 122 is centrally located in the heater body 1. Since the splicing surface between the two second blocks 112 is provided with mounting holes 1111, bolt connection is required. Therefore, the arc of the arc-shaped portion 122 is 120 degrees to 140 degrees, which is less than the 180 degrees of the groove 113.

[0038] The arc-shaped portion 122 includes a meandering portion 1221 and a straight portion 1222 located at both ends in the arc direction. The meandering portion 1221 is meandering, and the straight portion 1222 is straight. The meandering portion 1221 is designed to increase the distribution density and improve heating efficiency. The straight portion 1222 is designed to be straight because the concave portion of the meandering portion 1221 near the middle of the arc of the straight portion 1222 is close to the arc of the arc-shaped portion 122, which limits the size space. The straight portion 1222 includes an extension 1223 located at the tail end. The extension 1223 extends towards the side closer to the arc-shaped portion 122 to improve the strength of the arc-shaped portion 122.

[0039] Combination Figure 2 , Figure 3 The flat portion 121 is embedded in the second block 112. The heating component 12 also includes a guide portion 123, which extends out of the flat portion 121 along the plane of the flat portion 121.

[0040] Example 2:

[0041] like Figure 4 , Figure 5 As shown in the figure, the installation structure of the hot runner heater in Embodiment 1 is disclosed in this embodiment, including a flow divider 2, which is connected to the hot runner plate. The hot runner plate is connected to the main flow channel. The plastic melt enters the hot runner plate through the main flow channel and is then divided to the flow divider 2.

[0042] The flow divider 2 is provided with a feed channel 21, which is connected to the flow divider hole of the hot runner plate. The plastic melt flows into the feed channel 21 from the hot runner plate. The flow divider 2 is also provided with a glue injection channel 22, which is used to connect to the glue injection channel of the hot nozzle.

[0043] The outer wall of the flow divider 2 is equipped with a heater body 1. Two heating blocks 11 are connected by bolts to enclose the flow divider 2. This installation method is easy to disassemble. When the heater is abnormal, it can be quickly disassembled, which solves the problem of difficult disassembly caused by the heating strip of the traditional hot runner plate being directly embedded on the surface of the runner plate.

[0044] Meanwhile, since the arc-shaped part 122 forms an arc-shaped distribution along the outer wall of the flow divider 2, the heating density of the flow divider 2 is increased, which solves the problem that the heating strips of the traditional hot runner plate can only be distributed on the upper and lower sides due to the inconvenience of processing. The heating efficiency of the flow divider 2 is improved, thereby improving product quality.

[0045] A fixing sleeve 3 is also installed on the outer wall of the flow divider 2. The fixing sleeve 3 has a cuboid structure, and its inner wall has a round hole for fitting into the outer wall of the flow divider 2. The fixing sleeve 3 is used to install a drive component 4, which is a cylinder. A valve needle is installed in the feed channel 21. The drive component 4 is used to control the movement of the valve needle to control the opening and closing of the gate. To better conduct heat, a second block 112 is fitted to both sides of the fixing sleeve 3 to prevent the temperature in the flow channel at this location from being too low. The fixing sleeve 3 has a through hole 31 for the valve needle to pass through.

[0046] Example 3: A processing apparatus for a hot runner heater, used to process the heating block 11 in Example 1.

[0047] like Figures 6-11 As shown, the processing device includes a base plate 8, a second mold 6 fixedly connected to the base plate 8, and a first mold 5 slidably connected to the base plate 8. The first mold 5 is movable to move closer to or further away from the second mold 6. Specifically, as... Figure 9 As shown, a fixing plate 81 is fixedly installed on the upper end of the base plate 8. Multiple guide rods 811 are fixedly installed on the fixing plate 81. A movable plate 812 is slidably connected to the guide rods 811. The movable plate 812 is fixedly connected to the first mold body 5. The guide rods 811 are rod-shaped structures and pass through the first mold body 5. A second driving component 82 is installed on the fixing plate 81. The second driving component 82 is a cylinder. The second driving component 82 drives the first mold body 5 to move along the outer wall of the guide rods 811, so that the first mold body 5 can move closer to or further away from the second mold body 6.

[0048] like Figure 11 As shown, a mold cavity 7 is formed between the first mold body 5 and the second mold body 6, as follows: Figure 7 , Figure 9As shown, the mold cavity 7 is connected to the injection port 71. By introducing molten metal into the injection port 71, the molten metal is formed into a heating block 11 within the mold cavity 7.

[0049] like Figure 7 As shown, the mold cavity 7 is also used to house the heating component 12. Specifically, in conjunction with... Figure 7 , Figure 8 The first mold body 5 is provided with a second groove 52, through which a guide part 123 passes. The second groove 52 communicates with the mold cavity 7. The second mold body 6 includes a protrusion 61, which is inserted into the second groove 52 so that the protrusion 61 and the wall of the second groove 52 clamp the guide part 123, preventing the molten material from leaking from the second groove 52 during casting. The first mold body 5 is also provided with a first groove 51, which communicates with the second groove 52. The width of the second groove 52 is smaller than the width of the first groove 51. The first groove 51 is located on the side of the second groove 52 away from the mold cavity 7, and the length of the first groove 51 is greater than that of the second groove 52. The guide part 123 is partially located in the first groove 51. Because the second groove 52 is shorter, the problem of difficult demolding caused by the guide part 123 being too long is prevented.

[0050] like Figure 7 As shown, the guide part 123 passes through the second groove 52 to form a suspended state. The first mold body 5 includes a flat part 53 and an arc-shaped part 54. The flat part 53 and the arc-shaped part 54 are one side of the mold cavity 7. The flat part 121 is close to the flat part 53, and the arc-shaped part 122 is close to the arc-shaped part 54.

[0051] like Figure 9 , Figure 10 As shown, it also includes a push rod 813, which passes through the first mold body 5 and can extend into the mold cavity 7. Specifically, the push rod 813 passes through the movable plate 812 and can move axially along the inner wall of the movable plate 812. The end of the push rod 813 near the fixed plate 81 extends out of the movable plate 812. The movement of the movable plate 812 drives the push rod 813 to move until the push rod 813 abuts against the fixed plate 81, so that the fixed plate 81 can push the push rod 813, thereby allowing the push rod 813 to extend into the mold cavity 7. The push rod 813 is fixedly installed with a collar 814, which is located on the side of the movable plate 812 away from the fixed plate 81. The push rod 813 is fitted with a spring 815, and the two ends of the spring 815 abut against the collar 814 and the first mold body 5, respectively.

[0052] Example 4: A processing method for a hot runner heater, using the processing apparatus of Example 3 to process the heating block 11 of Example 1, specifically including the following steps:

[0053] ① The strip-shaped heating element 12 is made into a meandering shape.

[0054] ② Press the curved part 122 into an arc shape.

[0055] ③ Move the first mold body 5 to separate the first mold body 5 from the second mold body 6, install the heating component 12 on the first mold body 5, and let the guide part 123 pass through the second groove 52.

[0056] ④ Move the first mold body 5 so that the first mold body 5 and the second mold body 6 are closed, forming a mold cavity 7 between the first mold body 5 and the second mold body 6. The heating component 12 is located in the mold cavity 7. The protrusion 61 is inserted into the second groove 52 so that the protrusion 61 and the wall of the second groove 52 are locked together with the guide part 123.

[0057] ⑤ Molten metal is injected through the injection port 71, and the heating block 11 is formed in the mold cavity 7.

[0058] ⑥ Move the first mold body 5 to separate the first mold body 5 from the second mold body 6, and push out the heating block 11 through the guide rod 811 to complete the demolding.

[0059] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A processing apparatus for a hot runner heater, characterized in that, It includes a first mold (5) and a second mold (6), a mold cavity (7) is formed between the first mold (5) and the second mold (6), the mold cavity (7) is used to place the heating component (12), the mold cavity (7) is connected to the injection port (71), and the first mold (5) can move to get closer to or away from the second mold (6); The hot runner heater includes a heater body (1) and a heating component (12). The heating component (12) is embedded in the heater body (1). The heating component (12) includes an arc-shaped portion (122). The first mold body (5) includes an arc-shaped portion (54). The arc-shaped portion (54) is one side of the mold cavity (7). The arc-shaped portion (122) is close to the arc-shaped portion (54).

2. The processing apparatus for a hot runner heater according to claim 1, characterized in that, The heating component (12) includes a guide portion (123), the first mold body (5) is provided with a second groove (52), the guide portion (123) passes through the second groove (52), the second groove (52) communicates with the mold cavity (7), the second mold body (6) includes a protrusion (61), the protrusion (61) is inserted into the second groove (52) so that the protrusion (61) and the wall of the second groove (52) clamp the guide portion (123).

3. The processing apparatus for a hot runner heater according to claim 1, characterized in that, It also includes a push rod (813) that passes through the first mold body (5) and can extend into the mold cavity (7).

4. The processing apparatus for a hot runner heater according to claim 3, characterized in that, It also includes a fixed plate (81), on which a guide rod (811) is fixedly mounted. The guide rod (811) is slidably connected to a movable plate (812). The movable plate (812) can move closer to or further away from the fixed plate (81). The movable plate (812) is fixedly connected to the first mold body (5). The push rod (813) passes through the movable plate (812). The push rod (813) can move axially along the inner wall of the movable plate (812). One end of the push rod (813) protrudes from the movable plate (812) near the fixed plate (81). (812) The movement drives the push rod (813) to move until the push rod (813) abuts against the fixed plate (81), so that the fixed plate (81) can push the push rod (813) so that the push rod (813) extends into the mold cavity (7). The push rod (813) is fixedly installed with a collar (814). The collar (814) is located on the side of the moving plate (812) away from the fixed plate (81). The push rod (813) is fitted with a spring (815). The two ends of the spring (815) abut against the collar (814) and the first mold body (5) respectively.

5. The processing apparatus for a hot runner heater according to claim 1, characterized in that, It also includes a base plate (8), the second mold (6) is fixedly connected to the base plate (8), and the first mold (5) is slidably connected to the base plate (8).

6. The processing apparatus for a hot runner heater according to claim 1, characterized in that, The heater body (1) includes a first block (111), the first block (111) is provided with a groove (113), and the arc-shaped part (122) is embedded in the wall of the groove (113).

7. The processing apparatus for a hot runner heater according to claim 1, characterized in that, The heating component (12) further includes a flat portion (121), and the heater body (1) further includes a second block (112), wherein the flat portion (121) is embedded in the second block (112).

8. The processing apparatus for a hot runner heater according to claim 1, characterized in that, The heater body (1) includes at least two heating blocks (11), which are assembled to form the heater body (1).

9. A processing method for a hot runner heater, used to process the heating block (11) as described in claim 8, characterized in that, Includes the following steps: ① The heating element (12) is made into a meandering shape; ② Press the curved part (122) into an arc shape; ③ Move the first mold (5) to separate the first mold (5) from the second mold (6), and install the heating component (12) on the first mold (5); ④ Move the first mold (5) to close the mold with the second mold (6), forming a mold cavity (7) between the first mold (5) and the second mold (6), and the heating component (12) is located in the mold cavity (7); ⑤ Molten metal is injected from the injection port (71), and a heating block (11) is formed in the mold cavity (7); ⑥ Move the first mold (5) to separate the first mold (5) from the second mold (6) for demolding.

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