Injection molding machine heating device

Abstract

The utility model relates to injection molding machine technical field provides an injection molding machine heating device, include: two cover shells and base, the base sets up below two cover shells still include: screw rod, rotates and connects in the opposite side of inside wall of base. The utility model, by holding the handle with hand, and rotates, make it drive screw rod rotation, drive mounting block and cover shell move to one side, make two cover shells separate each other, by pushing the cover pole upward with hand, from the inside of positioning hole, make compression spring compression simultaneously, release the location of arc slide, at this moment can push the arc heat conduction piece, make it drive arc slide along the inside of arc slide groove and slide, until from the inside of arc slide groove, namely can take down arc heat conduction piece, mounting strip and arc heating wire, this is convenient to the disassembly of cover shell and arc heat conduction piece, this process is more time -saving and labour -saving, thereby improves the efficiency of heating device maintenance.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, and in particular to a heating device for injection molding machines. Background Technology

[0002] Injection molding machines require heating and melting plastic during the injection molding process, and then extruding the molten plastic into the mold. Heating the injection molding machine requires the use of heating coils. Traditional heating coils are fitted onto the injection molding machine barrel, and there is a gap between the heating coil and the injection molding machine barrel. Heating the injection molding machine barrel with the heating coil hinders heat conduction. In use, the pipes need to be preheated for a long time, which wastes energy and results in slow heating speed.

[0003] In the prior art, such as Chinese Patent No. CN219153659U, a heating device for an injection molding machine is disclosed, including a sleeve. Side fixing plates are fixedly installed at both ends of the outer side of the sleeve. This heating device for injection molding machines, by uniformly installing heating units inside the sleeve, can adjust the position of the heating block, telescopic rod, and buffer spring via an auxiliary block, thereby adapting the heating block to the material conveying pipe of the injection molding machine. This allows the heating device to adapt to material conveying pipes of different sizes, exhibiting strong applicability. The heating block is then heated by a heating coil, thereby heating and melting the plastic inside the material conveying pipe through heat transfer. Furthermore, by opening a heat-insulating cavity on the side wall of the sleeve and installing a heat-insulating plate inside the cavity, the heat insulation effect of the sleeve is improved, thus enhancing the heating effect and efficiency of the heating device for the material conveying pipe.

[0004] While the above-mentioned solution has the advantages mentioned above, it also has disadvantages: Although it can evenly install heating units inside the sleeve and adjust the position of the heating block, telescopic rod, and buffer spring via the auxiliary block, thereby adapting the heating block to the material conveying pipe of the injection molding machine, it is inconvenient to remove the sleeve from the material conveying pipe of the injection molding machine when the heating unit is damaged and needs repair. The material conveying pipe of the injection molding machine must be disassembled before the sleeve can be removed, which is time-consuming and labor-intensive, resulting in low efficiency of heating device maintenance. In addition, the uneven contact between the auxiliary plate and the material conveying pipe results in relatively higher temperatures in some parts of the material conveying pipe, making the injection pipe prone to uneven heating, which may affect the melting effect of the plastic inside the material conveying pipe. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art. Although the heating unit can be evenly installed inside the sleeve, and the position of the heating block, telescopic rod, and buffer spring can be adjusted by the auxiliary block to adapt the heating block to the material conveying pipe of the injection molding machine, when the heating unit is damaged and needs repair, it is inconvenient to remove the sleeve from the material conveying pipe of the injection molding machine. The material conveying pipe of the injection molding machine must be disassembled before the sleeve can be removed. This process is time-consuming and labor-intensive, resulting in low efficiency of the heating device repair. In addition, the contact position between the auxiliary plate and the material conveying pipe is uneven, resulting in relatively high temperature in some parts of the material conveying pipe. This makes the injection pipe prone to uneven heating, which may affect the melting effect of the plastic inside the material conveying pipe.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a heating device for an injection molding machine, comprising: two housings and a base, wherein the base is disposed below the two housings, and further comprising:

[0007] A lead screw is rotatably connected to opposite sides of the inner wall of the base. Two movable plates are symmetrically threaded onto the outer surface of the lead screw. Two mounting blocks are symmetrically fixedly connected to the top of the movable plates. The two mounting blocks are fixedly connected to the housing. An arc-shaped sliding groove is provided on opposite sides of the inner wall of the housing. An arc-shaped sliding strip is slidably connected inside the arc-shaped sliding groove. An arc-shaped heat-conducting plate is fixedly connected to opposite sides of the two arc-shaped sliding strips. Two mounting strips are symmetrically fixedly connected to the outer surface of the arc-shaped heat-conducting plate. Multiple arc-shaped heating wires are fixedly connected at equal intervals to the outer surface of the two mounting strips.

[0008] Preferably, two guide rods are symmetrically fixedly connected to opposite sides of the inner wall of the base, and both movable plates are slidably connected to the two guide rods.

[0009] Preferably, a square groove is provided on one side of the casing, the square groove is connected to one of the arc-shaped sliding grooves, a round rod is fixedly connected to the top of the inner wall of the square groove, and a sleeve rod is slidably connected to the outer surface of the round rod.

[0010] Preferably, a compression spring is provided on the outer surface of the round rod, one end of the compression spring is fixedly connected to the top of the inner wall of the square groove, and the other end of the compression spring is fixedly connected to the top of the sleeve rod.

[0011] Preferably, the outer surfaces of the two arc-shaped sliders are provided with positioning holes, and the outer surface of the sleeve is slidably connected to the inside of the positioning holes.

[0012] Preferably, a sealing gasket is fixedly connected to each of the two shells on opposite sides, and the sealing gasket is made of high-temperature resistant silicone rubber.

[0013] Preferably, a crank handle is fixedly connected to one end of the lead screw.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] 1. This utility model allows for easy disassembly of the heating device by holding and rotating the crank handle. The screw, connected to the movable plate by a threaded connection, and guided by a guide rod, moves the two movable plates away from each other, simultaneously moving the mounting block and the housing to one side. This separates the two housings. Once the interior of the housing returns to normal temperature, the sleeve rod is pushed upwards by hand, causing it to slide upwards along the outer surface of the round rod and disengage from the positioning hole. Simultaneously, the compression spring is compressed, releasing the limit on the arc-shaped slide bar. At this point, the arc-shaped heat-conducting plate can be pushed, causing the arc-shaped slide bar to slide along the inside of the arc-shaped groove until it disengages from the groove. The arc-shaped heat-conducting plate, mounting strip, and arc-shaped heating wire can then be removed. This facilitates disassembly of the housing and the arc-shaped heat-conducting plate, saving time and effort and improving the efficiency of heating device maintenance.

[0016] 2. This utility model, by fitting two shells together and pressing two sealing gaskets against each other, simultaneously compresses the material conveying pipe of the injection molding machine, maintaining a sealed state between the two shells and the material conveying pipe. Simultaneously, the inner wall of the arc-shaped heat-conducting sheet is in close contact with the outer surface of the material conveying pipe, completely enclosing the material conveying pipe. Heating is achieved by controlling the arc-shaped heating wire via a controller, which then transfers heat to the interior of the material conveying pipe, heating and melting the plastic. This ensures uniform contact between the arc-shaped heat-conducting sheet and the material conveying pipe, guaranteeing uniform heat transfer and improving the melting effect of the plastic inside the material conveying pipe. Attached Figure Description

[0017] Figure 1 This utility model provides a side view of the heating device for an injection molding machine.

[0018] Figure 2 This utility model provides a schematic diagram of the internal structure of a heating device for an injection molding machine.

[0019] Figure 3 This utility model provides a heating device for an injection molding machine. Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This is a partially disassembled structural diagram of a heating device for an injection molding machine provided by this utility model.

[0021] Legend:

[0022] 1. Housing; 101. Sealing gasket; 102. Arc-shaped heat-conducting plate; 103. Mounting strip; 104. Arc-shaped heating wire; 105. Arc-shaped slide bar; 106. Positioning hole; 107. Square groove; 108. Round rod; 109. Compression spring; 110. Sleeve rod; 111. Arc-shaped slide groove; 2. Base; 201. Lead screw; 202. Guide rod; 203. Movable plate; 204. Mounting block; 205. Crank handle. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Examples, such as Figure 1-4 As shown, this utility model provides a heating device for an injection molding machine, including: two housings 1 and a base 2. The base 2 is located below the two housings 1. It also includes: a lead screw 201, which is rotatably connected to the opposite side of the inner wall of the base 2. The outer surface of the lead screw 201 is symmetrically threaded with two movable plates 203. The top of the movable plates 203 is symmetrically fixedly connected with two mounting blocks 204. The two mounting blocks 204 are fixedly connected to the housings 1. The inner wall of the housings 1 is provided with arc-shaped grooves 111 on opposite sides. Arc-shaped slide strips 105 are slidably connected inside the arc-shaped grooves 111. Arc-shaped heat-conducting plates 102 are fixedly connected to the opposite side of the two arc-shaped slide strips 105. The outer surface of the arc-shaped heat-conducting plates 102 is symmetrically fixedly connected with two mounting strips 103. Multiple arc-shaped heating wires 104 are fixedly connected at equal intervals on the outer surface of the two mounting strips 103.

[0026] Furthermore, such as Figure 1-4 As shown, two guide rods 202 are symmetrically fixedly connected to opposite sides of the inner wall of the base 2. Both movable plates 203 are slidably connected to the two guide rods 202. The guide rods 202 serve to limit and guide the movable plates 203.

[0027] Furthermore, such as Figure 1-4 As shown, a square groove 107 is provided on one side of the casing 1. The square groove 107 is connected to one of the arc-shaped sliding grooves 111. A round rod 108 is fixedly connected to the top of the inner wall of the square groove 107. A sleeve rod 110 is slidably connected to the outer surface of the round rod 108. With the above arrangement, the sleeve rod 110 can slide up and down along the outer surface of the round rod 108.

[0028] Furthermore, such as Figure 1-4 As shown, a compression spring 109 is provided on the outer surface of the round rod 108. One end of the compression spring 109 is fixedly connected to the top of the inner wall of the square groove 107, and the other end of the compression spring 109 is fixedly connected to the top of the sleeve rod 110. Under the restoring force of the compression spring 109, the sleeve rod 110 can slide downward along the outer surface of the round rod 108.

[0029] Furthermore, such as Figure 1-4 As shown, the outer surfaces of the two arc-shaped sliders 105 are provided with positioning holes 106, and the outer surface of the sleeve rod 110 is slidably connected to the inside of the positioning holes 106. By setting the positioning holes 106, when the sleeve rod 110 is inserted into the positioning holes 106, the arc-shaped sliders 105 can be limited.

[0030] Furthermore, such as Figure 1-4 As shown, sealing gaskets 101 are fixedly connected to opposite sides of the two housings 1. The sealing gaskets 101 are made of high-temperature resistant silicone rubber. The sealing gaskets 101 provide a certain sealing effect and have high-temperature resistance.

[0031] Furthermore, such as Figure 1-4 As shown, a crank handle 205 is fixedly connected to one end of the lead screw 201, which facilitates the rotation of the lead screw 201.

[0032] Working principle: When it is necessary to remove the housing 1 from the material conveying pipe of the injection molding machine, hold the crank handle 205 and turn it to drive the lead screw 201 to rotate. Then, with the threaded connection between the lead screw 201 and the movable plate 203, and with the guide rod 202 limiting and guiding the movable plate 203, the two movable plates 203 can be moved away from each other, simultaneously driving the mounting block 204 and the housing 1 to move to one side, so that the two housings 1 separate. After the inside of the housing 1 returns to normal temperature, push the sleeve rod 110 upward by hand, so that it moves along the outer surface of the round rod 108. Slide upwards to disengage from the inside of the positioning hole 106, simultaneously compressing the compression spring 109 and releasing the limit on the arc-shaped slider 105. At this point, the arc-shaped heat-conducting plate 102 can be pushed, causing it to drive the arc-shaped slider 105 to slide along the inside of the arc-shaped groove 111 until it disengages from the inside of the arc-shaped groove 111. Then, the arc-shaped heat-conducting plate 102, the mounting strip 103, and the arc-shaped heating wire 104 can be removed. This facilitates the disassembly of the housing 1 and the arc-shaped heat-conducting plate 102, saving time and effort and improving the efficiency of heating device maintenance. When maintenance is complete, the arc-shaped slider 105 can be pushed upwards again. Inserted into the arc-shaped slide groove 111, the arc-shaped heat-conducting plate 102 is reset. Under the reset force of the compression spring 109, the sleeve 110 can be inserted into the positioning hole 106 to limit the arc-shaped slide bar 105, thereby keeping the arc-shaped heat-conducting plate 102 and the arc-shaped heating wire 104 in a relatively fixed state. Then, by manually turning the crank handle 205 in the opposite direction, it drives the lead screw 201 to rotate in the opposite direction, causing the two movable plates 203 to move towards the center along the outer surface of the lead screw 201, so that the two sleeves 1 fit together and the two sealing gaskets 101 are pressed against each other, while simultaneously controlling the material feeding of the injection molding machine. The pipe is compressed to maintain a sealed state between the two shells 1 and the conveying pipe, and simultaneously the inner wall of the arc-shaped heat-conducting plate 102 is in close contact with the outer surface of the conveying pipe. The two arc-shaped heat-conducting plates 102 completely enclose the conveying pipe. The arc-shaped heating wire 104 is controlled by the controller to heat the arc-shaped heat-conducting plate 102, so that the arc-shaped heat-conducting plate 102 transfers heat to the inside of the conveying pipe to heat and melt the plastic. This ensures that the arc-shaped heat-conducting plate 102 is in uniform contact with the conveying pipe, ensuring the uniformity of heat transfer, thereby improving the melting effect of the plastic inside the conveying pipe.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An injection molding machine heating apparatus comprising: Two housings (1) and a base (2), the base (2) being disposed below the two housings (1), characterized in that it further comprises: A lead screw (201) is rotatably connected to the opposite side of the inner wall of the base (2). Two movable plates (203) are symmetrically threaded on the outer surface of the lead screw (201). Two mounting blocks (204) are symmetrically fixedly connected to the top of the movable plates (203). The two mounting blocks (204) are fixedly connected to the housing (1). An arc-shaped sliding groove (111) is provided on the opposite side of the inner wall of the housing (1). An arc-shaped sliding strip (105) is slidably connected inside the arc-shaped sliding groove (111). An arc-shaped heat-conducting plate (102) is fixedly connected on the opposite side of the two arc-shaped sliding strips (105). Two mounting strips (103) are symmetrically fixedly connected to the outer surface of the arc-shaped heat-conducting plate (102). Multiple arc-shaped heating wires (104) are fixedly connected at equal intervals on the outer surface of the two mounting strips (103).

2. An injection molding machine heating device as defined in claim 1, wherein: Two guide rods (202) are symmetrically fixedly connected to opposite sides of the inner wall of the base (2), and the two movable plates (203) are slidably connected to the two guide rods (202).

3. An injection molding machine heating device as defined in claim 1, wherein: A square groove (107) is provided on one side of the casing (1). The square groove (107) is connected to one of the arc-shaped sliding grooves (111). A round rod (108) is fixedly connected to the top of the inner wall of the square groove (107). A sleeve rod (110) is slidably connected to the outer surface of the round rod (108).

4. An injection molding machine heating device as defined in claim 3, wherein: A compression spring (109) is provided on the outer surface of the round rod (108). One end of the compression spring (109) is fixedly connected to the top of the inner wall of the square groove (107), and the other end of the compression spring (109) is fixedly connected to the top of the sleeve rod (110).

5. An injection molding machine heating device as defined in claim 4, wherein: The outer surfaces of the two arc-shaped sliders (105) are provided with positioning holes (106), and the outer surface of the sleeve (110) is slidably connected to the inside of the positioning holes (106).

6. An injection molding machine heating device as described in claim 3 wherein: Each of the two housings (1) is fixedly connected to a sealing gasket (101) on one side of the opposite side. The sealing gasket (101) is made of high-temperature resistant silicone rubber.

7. An injection molding machine heating device as described in claim 1 wherein: A crank handle (205) is fixedly connected to one end of the lead screw (201).

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