Hot runner mold heating wire pressing equipment and auxiliary positioning assembly

Abstract

The invention relates to the technical field of hot runner molds, in particular to hot runner mold heating wire pressing equipment and an auxiliary positioning assembly. The hydraulic body compresses the connecting spring when driving the lifting frame to move downwards, downward pressure is applied to the opening frame through the connecting spring, the opening frame is driven to move downwards, the heating wire is driven to move downwards to be clamped at the top end of the metal plate caulking groove through the limiting plate, the wire pressing piece is synchronously driven to move downwards to cover the heating wire, and it is ensured that the heating wire is fixed to the top end of the metal plate caulking groove; when the surface of the pressing roller makes contact with the heating wire, the second sliding plate slides to the end, away from the pressing roller, of the plate groove and clamps the plate groove, the heating wire is pressed downwards into the embedding groove along with continuous rolling of the pressing roller, the second sliding plate pushed by the pressing roller drives the first sliding plate to be away from the upper surface of the metal plate, and the height is lowered downwards under the downward pressure acting force of the connecting spring; therefore, the metal plate is prevented from passing below the compression roller, and the compression roller can pass through the surface of the metal plate to complete embedding of the heating wire.

Description

Technical Field

[0001] The invention relates to the technical field of hot runner moulds, and in particular to a hot runner mould heating wire pressing device and an auxiliary positioning component. Background Art

[0002] The hot runner uses heating to keep the plastic in the runner and gate in a molten state. The hot runner system is generally composed of a hot nozzle, a manifold, a temperature control box and accessories. The hot runner mold ensures that the plastic always remains in a molten state in the runner, avoiding the need to remove the solidified runner in traditional molds, simplifying the production process, reducing cooling time, thereby shortening the molding cycle and improving production efficiency.

[0003] In a hot runner mold, a heater is generally provided for heating the hot runner and the nozzle and maintaining the plastic melt within a certain temperature range to ensure the molding quality of the plastic product. The heater is usually made of a heating tube or a heating wire embedded in a metal plate. The operation of embedding the heating wire into the groove on the heating plate is called wire embedding operation. The traditional wire embedding operation usually manually pushes the heating wire into the groove. It is difficult to maintain consistent squeezing force on the heating wire, which will result in different depths of the heating wire stuck in the groove, affecting the quality of the heater.

[0004] The existing related heating wire embedding device, such as an automated production equipment for automatic wire embedding of a heating plate, is mentioned in CN110479915B, comprising a body, a shell, a base arranged at the lower part of the shell and capable of contacting the surface of the heating plate, and a holding component arranged on the shell; a guide device arranged on the body, used for preliminary sorting and guiding the electric heating wire; a wire embedding device on the body, used for automatically embedding the electric heating wire after sorting and guiding by the guide device into the embedding groove on the heating plate; a body positioning device, used for controlling the body to always move along the embedding groove during the wire embedding operation; a turning device, used for controlling the body to rotate around the fulcrum with the center point of the arc as the fulcrum when the heating wire needs to be embedded into the arc-shaped embedding groove. Although the device can embed the heating wire into the embedding groove on its heating plate, the device embeds the heating wire into the built-in circular shell of the device, while the metal plate for the hot runner mold is generally a cubic structure with a flat surface, and the metal plate does not belong to the built-in structure of the device. Therefore, due to structural limitations, the device cannot be applied to the wire embedding operation of the metal plate for the hot runner mold.

[0005] In order to ensure that the heating wire can be embedded in the metal plate groove, a hot runner mold heating wire pressing device and an auxiliary positioning component are proposed. Summary of the invention

[0006] The object of the present invention is to provide a hot runner mold heating wire pressing device and an auxiliary positioning component to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, one of the objects of the present invention is to provide a hot runner mold heating wire pressing device, comprising a pressing structure, wherein the pressing structure comprises a rolling body and a pressing body arranged on the rolling body, wherein the rolling body is used to drive the movement of the metal plate, and the pressing body is used to press the heating wire into the embedding groove of the metal plate; The rolling body includes a frame and a plurality of main rollers and auxiliary rollers arranged on the frame, wherein the main roller is used to drive the movement of the object; The pressing body comprises a suspension arranged at the middle of the top of the frame, the suspension is provided with a hydraulic body and a lifting frame sliding up and down along the inner wall of the suspension, the bottom of the hydraulic body is connected to the top of the lifting frame, and the bottom of the lifting frame is rotatably connected to a pressure roller.

[0008] The second object of the present invention is to provide a hot runner mold heating wire auxiliary positioning component, which is used to cooperate with the above-mentioned hot runner mold heating wire pressing device to position the heating wire, including a positioning structure, the positioning structure includes a fixed body connected to the lifting frame and a positioning body connected to the fixed body, the fixed body is used to keep the metal plate and the heating wire relatively fixed, the positioning body is used to align the heating wire with the embedded groove on the metal plate, when the pressure roller moves downward, the fixed body drives the positioning body to press the heating wire down and clamp it on the top of the metal plate embedded groove until the pressure roller presses the heating wire into the embedded groove and pushes the positioning body to separate from the metal plate surface along the fixed body.

[0009] As a further improvement of the present technical solution, the fixed body includes edge frames arranged in pairs and a connecting frame arranged between the two edge frames, the edge frames are fixedly arranged on the frame, the connecting frame is a "U"-shaped structural plate, and the connecting frame is provided with a pair of inner shafts near one end of the pressure roller, and one end of the inner shaft is connected to a clamping block for contacting the metal plate.

[0010] As a further improvement of the technical solution, the connecting frame is provided with a built-in groove on the surface of one end close to the pressure roller, the inner shaft is slidably connected to the built-in groove, and the inner shaft is connected to the inner wall of the built-in groove via a first spring.

[0011] As a further improvement of the present technical solution, the positioning body includes wire pulling abutments arranged in pairs, and the wire pulling abutments include a bottom connecting plate connected to the clamping block at one end, and the bottom connecting plate is provided with an end fixing body for fixing the end of the heating wire for plug-in cooperation, and a first sliding plate is provided on the top of the other end of the bottom connecting plate, and the side wall of the first sliding plate is provided with a limiting plate for resisting the heating wire.

[0012] As a further improvement of the present technical solution, the bottom of the first sliding plate is slidably connected to the top of the bottom connecting plate, the bottom of the first sliding plate is connected to the inner wall of the top of the bottom connecting plate through a second spring, a plurality of plug-in grooves are provided on the side wall of the first sliding plate, and one end of the limit plate is plugged into the plug-in groove.

[0013] As a further improvement of the present technical solution, the edge frame is a "T"-shaped structural plate with a "T"-shaped groove, and the two ends of the lifting frame are connected to the top of the edge frame for vertical sliding movement, and the bottom end of the "T"-shaped groove of the edge frame is connected to a mouth frame for vertical sliding movement, and the mouth frame is connected to the bottom of the two ends of the lifting frame through a connecting spring arranged at the top, and pulleys are arranged at both ends of the connecting frame, and the pulleys are located in the mouth frame, and the two ends of the connecting frame are connected to the mouth frame for sliding movement, and the inner shaft is connected to the clamping block for vertical sliding movement, and an inner connecting plate is arranged in the clamping block, and the inner connecting plate is connected to the inner shaft near one end of the inner shaft, and the bottom end of the bottom connecting plate passes through the clamping block and is connected to the top end of the inner connecting plate, and the positioning body also includes a wire pressing piece arranged on the top of the first sliding plate, and the wire pressing piece is used to cover the wire body part of the heating wire.

[0014] As a further improvement of the technical solution, the wire pressing member includes a second sliding plate arranged on the top of the first sliding plate, and the second sliding plate is provided with a pressing plate for covering the heating wire body part near one end of the pressing roller.

[0015] As a further improvement of the technical solution, a limiting wheel for contacting the surface of the pressure roller is provided on the top of the second sliding plate, a plate groove is opened on the upper surface of the first sliding plate, and the protrusion at the bottom end of the second sliding plate is located in the plate groove and is slidably connected to the plate groove.

[0016] As a further improvement of the technical solution, the pressing plate is slidably connected to the second sliding plate, a screw is rotatably connected inside the second sliding plate, and the screw is threadedly connected to the pressing plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. In the hot runner mold heating wire pressing device and auxiliary positioning assembly, the limiting plate on the first sliding plate is correspondingly arranged above the corner of the metal plate embedding groove. According to the corner position and bending angle of the metal plate embedding groove, the limiting plate of the corresponding shape is inserted into the plug-in groove at the corresponding position, so as to facilitate the shape of the heating wire body to be adjusted to match the shape of the embedding groove, and by setting a spring connection, it can be ensured that the wire body part of the heating wire is tightened, so as to facilitate the adjustment of the shape of the heating wire body, so as to facilitate the heating wire to be embedded in the embedding groove of the metal plate.

[0018] 2. In the hot runner mold heating wire pressing device and auxiliary positioning assembly, the hydraulic body compresses the connecting spring when driving the lifting frame to move downward, and applies downward pressure to the mouth frame through the connecting spring, driving the mouth frame to move downward and then driving the heating wire to move downward through the limit plate and get stuck at the top of the metal plate groove, and simultaneously driving the wire pressing part to move downward to cover the heating wire, ensuring that the heating wire is fixed at the top of the metal plate groove. When the pressure roller surface contacts the heating wire, the second sliding plate slides to the end of the plate groove away from the pressure roller and gets stuck in the plate groove. As the pressure roller continues to roll, the heating wire is pressed down into the groove. The second sliding plate pushed by the pressure roller drives the first sliding plate away from the upper surface of the metal plate, and lowers its height downward under the downward pressure of the connecting spring, thereby avoiding affecting the metal plate passing under the pressure roller, which is beneficial for the pressure roller to complete the embedding of the heating wire through the surface of the metal plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the compression structure of the present invention; Figure 3 It is a schematic diagram of the positioning structure of the present invention; Figure 4 It is a schematic diagram of the coordination of the lifting frame and the edge frame structure of the present invention; Figure 5 It is a schematic diagram of the structural coordination between the edge frame and the connecting frame of the present invention; Figure 6 It is a schematic diagram of the positioning body structure of the present invention; Figure 7 It is a schematic diagram of the overall structure of the wire dragging member of the present invention; Figure 8 This is a disassembled diagram of the wire dragging member structure of the present invention; Fig. 9 It is a cross-sectional structural diagram of a wire pressing member of the present invention; Fig.10 It is a schematic diagram of the placement of the metal plate and the heating wire in the present invention; Fig.11 This is a schematic diagram of the state where the heating wire in the present invention is pressed into the metal plate.

[0020] The meaning of each number in the figure is: 1. Pressing structure; 11. Frame; 111. Main roller; 112. Auxiliary roller; 12. Suspension; 121. Lifting frame; 122. Pressing roller; 2. Positioning structure; 21. Edge frame; 211. Connecting spring; 212. Mouth frame; 22. Connecting frame; 221. Pulley; 222. Inner shaft; 223. Clamping block; 2231. Inner connecting plate; 23. Positioning body; 231. Wire dragging member; 2311. Bottom connecting plate; 2312. End fixing body; 2313. First sliding plate; 2314. Limiting plate; 2315. Inserting slot; 2316. Plate slot; 232. Wire pressing member; 2321. Second sliding plate; 2322. Pressing plate; 2323. Limiting wheel; 2324. Screw; 3. Metal plate; 4. Heating wire. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The hot runner uses heating to keep the plastic in the runner and gate in a molten state. The hot runner system is generally composed of a hot nozzle, a manifold, a temperature control box and accessories. The hot runner mold ensures that the plastic always remains in a molten state in the runner, avoiding the need to remove the solidified runner in traditional molds, simplifying the production process, reducing cooling time, thereby shortening the molding cycle and improving production efficiency.

[0023] In a hot runner mold, a heater is generally provided for heating the hot runner and the nozzle and maintaining the plastic melt within a certain temperature range to ensure the molding quality of the plastic product. The heater is usually made of a heating tube or a heating wire embedded in a metal plate. The operation of embedding the heating wire into the groove on the heating plate is called wire embedding operation. The traditional wire embedding operation usually manually pushes the heating wire into the groove. It is difficult to maintain consistent squeezing force on the heating wire, which will cause the heating wire to be stuck in the groove to different depths, affecting the quality of the heater. Therefore, a heating wire pressing device that can evenly press the heating wire into the groove is needed.

[0024] Therefore, please refer to Figure 1 , Figure 2 As shown, one of the purposes of this embodiment is to provide a hot runner mold heating wire pressing device, including a pressing structure 1, the pressing structure 1 includes a rolling body and a pressing body arranged on the rolling body, the rolling body is used to drive the movement of the metal plate 3, and the pressing body is used to press the heating wire 4 into the embedding groove of the metal plate 3; The rolling body includes a frame 11 and a plurality of main rollers 111 and auxiliary rollers 112 arranged on the frame 11. The main rollers 111 are used to drive the movement of the object. The pressing body includes a suspension 12 arranged in the middle of the top of the frame 11. The suspension 12 is provided with a hydraulic body and a lifting frame 121 that slides up and down along the inner wall of the suspension 12. The bottom of the hydraulic body is connected to the top of the lifting frame 121. The bottom of the lifting frame 121 is rotatably connected with a pressure roller 122. After the metal plate 3 is placed on the frame 11, the main rollers 111 drive the metal plate 3 to pass under the pressure roller 122, and then the hydraulic body drives the lifting frame 121 to move downward so that the pressure roller 122 presses the wire body part of the heating wire 4 fixed by the positioning body 23 into the embedded groove of the metal plate 3.

[0025] See also Figure 3 As shown, the second purpose of this embodiment is to provide a hot runner mold heating wire auxiliary positioning component, which is used to cooperate with the above-mentioned hot runner mold heating wire pressing device to position the heating wire, including a positioning structure 2, the positioning structure 2 includes a fixed body connected to the lifting frame 121 and a positioning body 23 connected to the fixed body, the fixed body is used to keep the metal plate 3 and the heating wire 4 relatively fixed, the positioning body 23 is used to align the heating wire 4 with the embedded groove on the metal plate 3, first place the metal plate 3 on one end of the frame 11, and then clamp and fix the metal plate 3 by the fixed body, and then place it on the metal plate 3. The heating wire 4 is then aligned with the embedded groove of the metal plate 3 through the positioning body 23, and the main roller 111 drives the fixed body fixed with the metal plate 3 to pass under the pressure roller 122. When the pressure roller 122 moves downward, the downward pressure is applied to the positioning body 23 through the fixed body. The positioning body 23 presses down to press the heating wire 4 down and clamps it on the top of the embedded groove of the metal plate 3 until the pressure roller 122 contacts the heating wire 4 and pushes the positioning body 23 to separate from the heating wire 4. The positioning body 23 then lowers its height downward with the help of the downward pressure to avoid hindering the downward movement of the pressure roller 122, so that the pressure roller 122 can press the heating wire 4 into the embedded groove of the metal plate 3.

[0026] The above structure is disclosed as follows: In order to clamp and fix the metal plate 3, Figure 3 , Figure 5As shown, the fixed body includes edge frames 21 arranged in pairs and a connecting frame 22 arranged between the two edge frames 21. The edge frames 21 are fixedly arranged on the frame 11. The connecting frame 22 is a "U"-shaped structural plate. The connecting frame 22 is provided with a pair of inner shafts 222 at one end close to the pressure roller 122. One end of the inner shaft 222 is connected with a clamping block 223 for contacting the metal plate 3. The side of the clamping block 223 is provided with a rubber strip for increasing the friction force. By placing the metal plate 3 between the two clamping blocks 223, the two clamping blocks 223 can be clamped. The block 223 can clamp and fix the metal plate 3, and a built-in groove is opened on the surface of one end of the connecting frame 22 close to the pressure roller 122, and the end of the inner shaft 222 away from the clamping block 223 is located in the built-in groove and is slidably connected to the built-in groove. A first spring is arranged on the side wall of one end of the inner shaft 222 located in the built-in groove, and the inner shaft 222 is connected to the inner wall of the built-in groove through the arranged first spring. By arranging the sliding connection, the distance between the two clamping blocks 223 can be changed, so as to facilitate the clamping and fixing of metal plates 3 of different sizes, such as Fig.10 As shown, by providing a first spring connection, the clamping block 223 can be attached to the side wall of the metal plate 3 to ensure a clamping and fixing effect.

[0027] After the metal plate 3 is fixed, the heating wire 4 needs to be placed on the metal plate 3, and the heating wire 4 is bent so that the shape of the heating wire 4 matches the shape of the embedding groove of the metal plate 3, such as Figure 3 , Figure 6 , Figure 7 , Figure 8As shown, the positioning body 23 includes a wire dragging member 231 arranged in pairs, and the wire dragging member 231 includes a bottom connecting plate 2311 connected to the clamping block 223 at one end, and an end fixing body 2312 for fixing the end of the heating wire 4 is provided on the bottom connecting plate 2311. A first sliding plate 2313 is provided on the top of the other end of the bottom connecting plate 2311, and a side wall of the first sliding plate 2313 is provided with a limiting plate 2314 for resisting the heating wire 4, wherein the end fixing body 2312 is a T-shaped tube that is plugged and matched with the bottom connecting plate 2311 up and down, and the T-shaped tube is provided with a screw for resisting the heating wire 4. After the two ends of the heating wire 4 are respectively passed through the two end fixing bodies 2312 and the ends of the heating wire 4 are fixed by screws, the wire body part of the heating wire 4 is placed on the surface of the metal plate 3, and then the limiting plate 2314 on the first sliding plate 2313 is correspondingly arranged above the corner of the embedded groove of the metal plate 3, so that the limiting plate 2314 The first sliding plate 2313 is provided with a second spring at the bottom of the first sliding plate 2313, and the bottom of the first sliding plate 2313 is connected to the inner wall of the top of the bottom connecting plate 2311 through the second spring. The side wall of the first sliding plate 2313 is provided with a plurality of plug-in grooves 2315, and one end of the limiting plate 2314 is plugged into the plug-in groove 2315. According to the corner position and the bending angle of the embedding groove of the metal plate 3, the limiting plate 2314 of the corresponding shape is used to insert the plug-in groove 2315 at the corresponding position, so as to facilitate the adjustment of the shape of the filament of the heating wire 4 to match the shape of the embedding groove, and by providing a spring connection, it can be ensured that the filament part of the heating wire 4 is tightened, so as to facilitate the adjustment of the shape of the filament of the heating wire 4.

[0028] After the shape of the heating wire 4 is adjusted, the wire body of the heating wire 4 needs to be pressed into the embedded groove. When pressing, in order to ensure that the pressing roller 122 can press the wire body of the heating wire 4 into the embedded groove, as shown in FIG. Figure 4 , Figure 5 , Figure 6 , Figure 7As shown, the edge frame 21 is a "T"-shaped structural plate with a "T"-shaped groove, the two ends of the lifting frame 121 are located at the top of the edge frame 21 and are connected to the top of the edge frame 21 for sliding up and down, the bottom end of the "T"-shaped groove of the edge frame 21 is connected to the mouth frame 212 for sliding up and down, a connecting spring 211 is arranged on the top of the mouth frame 212, and the mouth frame 212 is connected to the bottom of the two ends of the lifting frame 121 through the connecting spring 211 arranged on the top, pulleys 221 are arranged at both ends of the connecting frame 22, the pulleys 221 are located in the mouth frame 212, and the two ends of the connecting frame 22 are connected to the mouth frame 212 for sliding through the pulleys 221, the inner shaft 222 is connected to the clamping block 223 for sliding up and down, and the clamping block 223 is provided with an inner connecting plate 2231, and the inner connecting plate 2231 is close to the inner shaft 22 2 is connected to the inner shaft 222, the bottom end of the bottom connecting plate 2311 passes through the clamping block 223 and is connected to the top of the inner connecting plate 2231, the positioning body 23 also includes a wire pressing piece 232 arranged on the top of the first sliding plate 2313, the wire pressing piece 232 is used to cover the wire body part of the heating wire 4, when the main roller 111 drives the metal plate 3 to move, the metal plate 3 further drives the connecting frame 22 to move along the mouth frame 212 through the clamping blocks 223 clamped at both ends of the metal plate 3, during the movement, the hydraulic body drives the lifting frame 121 to move slowly downward, so that the height of the pressing roller 122 matches the height of the metal plate 3, and when the lifting frame 121 moves downward, it compresses the connecting spring 211, and then applies downward pressure to the mouth frame 212 through the connecting spring 211, and the pressure direction is as follows: Fig.11 As shown by the middle arrow a, the downward pressure drives the mouth frame 212 to move down in the "T"-shaped groove of the edge frame 21, and the downward movement of the mouth frame 212 will drive the connecting frame 22 to move down, and the connecting frame 22 then drives the bottom connecting plate 2311 to move down through the inner shaft 222 and the inner connecting plate 2231, so that the bottom of the first sliding plate 2313 is in contact with the upper surface of the metal plate 3, and when the limiting plate 2314 moves downward, it drives the heating wire 4 thread part that is pressed by the surface of the limiting plate 2314 to move downward and be stuck at the top of the embedded groove of the metal plate 3, and when the first sliding plate 2313 moves downward, it will synchronously drive the wire pressing piece 232 to move downward to cover the heating wire 4 thread part, so as to prevent the heating wire 4 thread part from falling off the surface of the limiting plate 2314 when the limiting plate 2314 moves downward, and ensure that the limiting plate 2314 fixes the heating wire 4 thread part at the top of the embedded groove of the metal plate 3, so that the pressing roller 122 can directly press the heating wire 4 thread part into the embedded groove.

[0029] like Figure 8 , Fig. 9 As shown, the structure of the wire pressing member 232 is specifically disclosed below: The wire pressing member 232 includes a second sliding plate 2321 arranged on the top of the first sliding plate 2313. The second sliding plate 2321 is provided with a pressing plate 2322 for covering the wire body part of the heating wire 4 near one end of the pressing roller 122. When the first sliding plate 2313 moves downward, the second sliding plate 2321 connected to the first sliding plate 2313 drives the pressing plate 2322 to move downward, so that when the limiting plate 2314 drives the wire body part of the heating wire 4 to be stuck in the top of the embedded groove, the pressing plate 2322 can cover the wire body part of the heating wire 4 to prevent the wire body part of the heating wire 4 from falling off the surface of the limiting plate 2314. Considering that the pressing roller 122 presses the wire body part of the heating wire 4 into the embedded groove from top to bottom, the pressing plate 2322 located between the pressing roller 122 and the wire body part of the heating wire 4 and the pressing plate 2322 against the wire body part of the heating wire 4 The limiting plate 2314 of the part will undoubtedly affect the pressing effect of the pressure roller 122 on the wire body of the heating wire 4, so the top of the second sliding plate 2321 is provided with a limiting wheel 2323 for contacting the surface of the pressure roller 122, and a plate groove 2316 is opened at the contact point between the upper surface of the first sliding plate 2313 and the second sliding plate 2321. The protrusion at the bottom end of the second sliding plate 2321 is located in the plate groove 2316 and is slidably connected to the plate groove 2316. When the pressure roller 122 contacts the upper surface of the metal plate 3 and the pressure roller 122 is close to the wire body of the heating wire 4, the surface of the pressure roller 122 contacts the limiting wheel 2323, so that when the pressure roller 122 rolls on the surface of the metal plate 3, it can drive the second sliding plate 2321 to slide along the plate groove 2316 through the limiting wheel 2323. The moving direction of the second sliding plate 2321 is as follows: Fig.11 As shown by the middle arrow b, when the pressing roller 122 approaches the wire body of the heating wire 4, it will drive the pressing plate 2322 away from the wire body of the heating wire 4.

[0030] When the surface of the pressure roller 122 contacts the wire body of the heating wire 4, the second sliding plate 2321 slides to the end of the plate groove 2316 away from the pressure roller 122 and clamps the plate groove 2316. As the pressure roller 122 continues to roll, the heating wire 4 is pressed down into the embedded groove. The second sliding plate 2321 pushed by the pressure roller 122 drives the first sliding plate 2313 to overcome the elastic force of the second spring and slide along the bottom connecting plate 2311, so that the limiting plate 2314 is away from the wire body of the heating wire 4. At this time, since the pressure roller 122 has pressed the wire body of the heating wire 4 into the upper half of the embedded groove, that is, the shape of the wire body of the heating wire 4 has been fixed by the embedded groove, the limiting plate The distance between the limiting wheel 2323 and the limiting plate 2314 will not cause the shape of the heating wire 4 to be deformed, and due to the distance between the limiting wheel 2323 and the limiting plate 2314, the pressing roller 122 will not be hindered when pressing the heating wire 4 into the groove, which can ensure that the heating wire 4 is pressed into the groove. As the pressing roller 122 continues to roll on the upper surface of the metal plate 3, the second sliding plate 2321 pushed by the pressing roller 122 will drive the first sliding plate 2313 away from the upper surface of the metal plate 3, and under the downward pressure of the connecting spring 211, the height is lowered downward, thereby avoiding affecting the metal plate 3 passing under the pressing roller 122.

[0031] It is worth noting that in the above process, if the pressing plate 2322 is separated from the upper part of the heating wire 4 too early or too late, the embedding effect of the heating wire 4 will be affected, that is, after the pressing plate 2322 is separated from the heating wire 4, the pressing roller 122 has not yet contacted the heating wire 4, which may cause the heating wire 4 to fall off the surface of the limiting plate 2314, or the pressing plate 2322 has not completely separated from the heating wire 4 The wire part has already contacted the pressing roller 122. Therefore, the pressing plate 2322 is slidably connected to the second sliding plate 2321, and a screw 2324 is rotatably connected in the second sliding plate 2321. One end of the screw 2324 passes through the pressing plate 2322 and is threadedly connected to the pressing plate 2322. By adjusting the relative position of the pressing plate 2322 and the limiting wheel 2323, the pressing roller 122 can just contact the heating wire 4 wire part when the pressing plate 2322 is separated from the upper part of the heating wire 4, thereby ensuring the embedding effect of the heating wire 4 wire part.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A hot runner mold heating wire pressing device, comprising a pressing structure (1), characterized in that: The pressing structure (1) comprises a rolling body and a pressing body arranged on the rolling body, the rolling body is used to drive the metal plate (3) to move, and the pressing body is used to press the heating wire (4) into the embedding groove of the metal plate (3); The rolling body comprises a frame (11) and a plurality of main rollers (111) and auxiliary rollers (112) arranged on the frame (11), wherein the main rollers (111) are used to drive the movement of the object; The pressing body comprises a suspension (12) arranged at the middle of the top of the frame (11); the suspension (12) is provided with a hydraulic body and a lifting frame (121) sliding up and down along the inner wall of the suspension (12); the bottom of the hydraulic body is connected to the top of the lifting frame (121); and the bottom of the lifting frame (121) is rotatably connected to a pressing roller (122).

2. A hot runner mold heating wire auxiliary positioning assembly, used for cooperating with the hot runner mold heating wire pressing device according to claim 1 to position the heating wire, comprising a positioning structure (2), characterized in that: The positioning structure (2) comprises a fixed body connected to the lifting frame (121) and a positioning body (23) connected to the fixed body, the fixed body being used to keep the metal plate (3) and the heating wire (4) relatively fixed, the positioning body (23) being used to align the heating wire (4) with the embedded groove on the metal plate (3), and when the pressure roller (122) moves downward, the positioning body (23) is driven by the fixed body to press the heating wire (4) down and clamp it on the top of the embedded groove of the metal plate (3), until the pressure roller (122) presses the heating wire (4) into the embedded groove and pushes the positioning body (23) to separate from the surface of the metal plate (3) along the fixed body.

3. The hot runner mold heating wire auxiliary positioning assembly according to claim 2, characterized in that: The fixed body comprises edge frames (21) arranged in pairs and a connecting frame (22) arranged between the two edge frames (21); the edge frames (21) are fixedly arranged on the frame (11); the connecting frame (22) is a "U"-shaped structural plate; a pair of inner shafts (222) are arranged at one end of the connecting frame (22) close to the pressure roller (122); one end of the inner shaft (222) is connected to a clamping block (223) for contacting the metal plate (3).

4. The hot runner mold heating wire auxiliary positioning assembly according to claim 3, characterized in that: A built-in groove is provided on the surface of one end of the connecting frame (22) close to the pressure roller (122), the inner shaft (222) is slidably connected to the built-in groove, and the inner shaft (222) is connected to the inner wall of the built-in groove via a first spring.

5. The hot runner mold heating wire auxiliary positioning assembly according to claim 3, characterized in that: The positioning body (23) comprises a pair of wire dragging members (231), the wire dragging members (231) comprising a bottom connecting plate (2311) connected to the clamping block (223) at one end, the bottom connecting plate (2311) being provided with an end fixing body (2312) for fixing the end of the heating wire (4) in a plug-in manner, a first sliding plate (2313) being provided at the top of the other end of the bottom connecting plate (2311), and a limiting plate (2314) for resisting the heating wire (4) being provided on the side wall of the first sliding plate (2313).

6. The hot runner mold heating wire auxiliary positioning assembly according to claim 5, characterized in that: The bottom of the first sliding plate (2313) is slidably connected to the top of the bottom connecting plate (2311); the bottom of the first sliding plate (2313) is connected to the inner wall of the top of the bottom connecting plate (2311) via a second spring; a plurality of plug-in slots (2315) are provided on the side wall of the first sliding plate (2313); one end of the limiting plate (2314) is plugged into and matched with the plug-in slot (2315).

7. The hot runner mold heating wire auxiliary positioning assembly according to claim 6, characterized in that: The edge frame (21) is a "T"-shaped structural plate with a "T"-shaped groove. The two ends of the lifting frame (121) are connected to the top of the edge frame (21) in an up-and-down sliding manner. The bottom end of the "T"-shaped groove of the edge frame (21) is connected to the mouth frame (212) in an up-and-down sliding manner. The mouth frame (212) is connected to the bottom of the two ends of the lifting frame (121) via a connecting spring (211) arranged at the top. Pulleys (221) are arranged at the two ends of the connecting frame (22). The pulleys (221) are located in the mouth frame (212). The two ends of the connecting frame (22) are connected to the mouth frame (212). Sliding connection, the inner shaft (222) and the clamping block (223) are slidably connected up and down, an inner connecting plate (2231) is provided in the clamping block (223), and the inner connecting plate (2231) is connected to the inner shaft (222) at one end close to the inner shaft (222), and the bottom end of the bottom connecting plate (2311) passes through the clamping block (223) and is connected to the top end of the inner connecting plate (2231), and the positioning body (23) also includes a wire pressing piece (232) arranged on the top of the first sliding plate (2313), and the wire pressing piece (232) is used to cover the wire body part of the heating wire (4).

8. The hot runner mold heating wire auxiliary positioning assembly according to claim 7, characterized in that: The wire pressing member (232) comprises a second sliding plate (2321) arranged on the top of the first sliding plate (2313), and a pressing plate (2322) for covering the wire body portion of the heating wire (4) is arranged at one end of the second sliding plate (2321) close to the pressing roller (122).

9. The hot runner mold heating wire auxiliary positioning assembly according to claim 8, characterized in that: A limiting wheel (2323) for contacting the surface of the pressure roller (122) is provided on the top of the second sliding plate (2321); a plate groove (2316) is provided on the upper surface of the first sliding plate (2313); a protrusion at the bottom end of the second sliding plate (2321) is located in the plate groove (2316) and is slidably connected to the plate groove (2316).

10. The hot runner mold heating wire auxiliary positioning assembly according to claim 9, characterized in that: The pressing plate (2322) is slidably connected to the second sliding plate (2321); a screw rod (2324) is rotatably connected inside the second sliding plate (2321); and the screw rod (2324) is threadedly connected to the pressing plate (2322).

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