Injection mold hot runner convenient to maintain

Abstract

The utility model discloses an injection mold hot runner convenient to maintain, which comprises a shunting module, a main pipe joint, four nozzle mounting blocks and four nozzle main bodies, the four side walls of the shunting module are communicated with first connecting pipes, the side walls of the nozzle mounting blocks are communicated with fourth connecting pipes, and the fourth connecting pipes are communicated with second connecting pipes. The opposite ends of the first connecting pipe and the fourth connecting pipe are connected with a third connecting pipe and a second connecting pipe through two connecting mechanisms correspondingly, and the third connecting pipe and the second connecting pipe are connected through a mounting mechanism. According to the utility model, the mounting mechanism is arranged, so that when one or more nozzle mounting blocks need to be maintained, the nozzle mounting blocks can be independently dismounted to maintain the nozzle main body by dismounting a plurality of bolts, nuts and screws near the nozzle mounting blocks, and the whole hot runner does not need to be dismounted, thereby improving the practicability of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of hot runners of injection molds, in particular to a hot runner of an injection mold which is easy to maintain. Background Art

[0002] The runners of injection molds are divided into hot runners and cold runners. The hot runner uses internal or external heating of the mold to keep the heat, so that the plastic inside it always remains in a molten state. Because the molten plastic in the pouring system does not solidify during the injection process, no waste is generated, and automated high-speed injection molding is achieved.

[0003] The hot runners of some existing injection molds are equipped with multiple nozzles, which are connected to the diversion module through pipes. The multiple nozzles and the diversion module are fixed in the mold by screws. When a nozzle needs to be repaired, the screws on all nozzles and the diversion module need to be removed, which makes the maintenance and changes of the hot runner very troublesome. In order to solve the above problems, we have proposed this easy-to-maintain injection mold hot runner. Utility Model Content

[0004] The main purpose of the utility model is to provide a hot runner for an injection mold that is easy to maintain, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A hot runner for an injection mold that is easy to maintain, comprising a diverter module, a main pipe joint, four nozzle mounting blocks and four nozzle bodies, wherein the four side walls of the diverter module are connected to a first connecting pipe, the side walls of the nozzle mounting blocks are connected to a fourth connecting pipe, the opposite ends of the first connecting pipe and the fourth connecting pipe are respectively connected to a third connecting pipe and a second connecting pipe through two connecting mechanisms, the third connecting pipe and the second connecting pipe are connected through a mounting mechanism, and the mounting mechanism comprises two connecting plates respectively fixedly connected to the side walls of the third connecting pipe and the second connecting pipe, the two connecting plates are provided with three bolts, and the bolts are provided with nuts.

[0007] Preferably, the connecting mechanism includes a mounting cylinder arranged on the side wall of the fourth connecting tube, the side wall of the mounting cylinder is connected with a connecting cylinder, the connecting cylinder is connected with the second connecting tube, and the mounting cylinder is rotatably connected to the connecting cylinder.

[0008] Preferably, a sealing groove is provided on one side wall of the connection disk, and a sealing ring is provided on the other side wall of the connection disk.

[0009] Preferably, the third connecting pipe and the second connecting pipe are corrugated pipes, and the plurality of bolts are arranged at equal intervals.

[0010] Preferably, a first heating sleeve is provided on the side wall of the fourth connecting pipe, and a first heating wire is provided in the first heating sleeve.

[0011] Preferably, a second heating jacket is provided on the side wall of the first connecting tube, and a second heating wire is provided in the second heating jacket.

[0012] Preferably, a first sensor is provided at the lower end of the first heating jacket, and a second sensor is provided at the lower end of the second heating jacket, and both the first sensor and the second sensor are temperature sensors.

[0013] Preferably, the side walls of the first connecting tube and the fourth connecting tube are both provided with mounting rings, and the mounting rings are threadedly connected to the first connecting tube and the fourth connecting tube.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This device is equipped with an installation mechanism. When one or more nozzle mounting blocks need to be maintained, the multiple bolts, nuts and screws near the nozzle mounting blocks can be removed to remove the nozzle mounting blocks separately for maintenance of the nozzle body. There is no need to disassemble the entire hot runner, thereby improving the practicality of the device.

[0016] 2. This device is equipped with a connecting mechanism that enables the connecting plate to rotate, and the bolts and nuts on both sides of the two connecting plates rotate upward, making it easier to remove and install the bolts and nuts;

[0017] 3. The device is provided with a first heating jacket and a second heating jacket, which can heat and keep the material in the pipeline warm, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a hot runner for an injection mold that is easy to maintain, proposed by the utility model;

[0019] Figure 2 for Figure 1 A magnified view of the structure at point A;

[0020] Figure 3 This is a side view of a hot runner for an injection mold that is easy to maintain, as proposed by the utility model;

[0021] Figure 4 Another side view of the hot runner of an injection mold that is easy to maintain proposed by the utility model;

[0022] Figure 5 This is a top view of a hot runner of an injection mold that is easy to maintain, as proposed by the utility model.

[0023] In the figure: 1 diversion module, 2 main pipe joint, 3 first connecting pipe, 4 second connecting pipe, 5 nozzle mounting block, 6 nozzle body, 7 connecting plate, 8 bolt, 9 nut, 10 third connecting pipe, 11 fourth connecting pipe, 12 sealing ring, 13 sealing groove, 14 mounting cylinder, 15 connecting cylinder, 16 mounting ring, 17 first heating jacket, 18 first heating wire, 19 second heating jacket, 20 second heating wire, 21 first sensor, 22 second sensor. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1-5 As shown, a hot runner for an injection mold that is easy to maintain includes a diverter module 1, a main pipe joint 2, four nozzle mounting blocks 5 and four nozzle bodies 6. The four side walls of the diverter module 1 are connected with a first connecting pipe 3, and the side wall of the nozzle mounting block 5 is connected with a fourth connecting pipe 11. The opposite ends of the first connecting pipe 3 and the fourth connecting pipe 11 are respectively connected to a third connecting pipe 10 and a second connecting pipe 4 through two connecting mechanisms. The third connecting pipe 10 and the second connecting pipe 4 are connected through an installation mechanism. The installation mechanism includes two connecting plates 7 fixedly connected to the side walls of the third connecting pipe 10 and the second connecting pipe 4, respectively. Three bolts 8 are provided on the two connecting plates 7, and the bolts 8 are provided with nuts 9.

[0026] The connecting mechanism includes a mounting cylinder 14 arranged on the side wall of the fourth connecting pipe 11 . A connecting cylinder 15 is connected to the side wall of the mounting cylinder 14 . The connecting cylinder 15 is connected to the second connecting pipe 4 . The mounting cylinder 14 and the connecting cylinder 15 are rotatably connected.

[0027] A sealing groove 13 is provided on the side wall of one of the connection disks 7 , and a sealing ring 12 is provided on the side wall of the other connection disk 7 , which can improve the sealing effect between the two connection disks 7 .

[0028] In the present invention, the third connecting pipe 10 and the second connecting pipe 4 are bellows so that the sealing ring 12 can be smoothly moved out of the sealing groove 13, and the plurality of bolts 8 are arranged at equal intervals.

[0029] In the present invention, a first heating sleeve 17 is provided on the side wall of the fourth connecting pipe 11, and a first heating wire 18 is provided in the first heating sleeve 17, which can heat and keep warm the material near the nozzle mounting block 5, and can also preheat the pipeline to reduce the heat loss of the material.

[0030] In the present invention, a second heating jacket 19 is provided on the side wall of the first connecting pipe 3, and a second heating wire 20 is provided in the second heating jacket 19, which can heat and keep warm the material near the diversion module 1, and can also preheat the pipeline to reduce the heat loss of the material.

[0031] In the present invention, a first sensor 21 is provided at the lower end of the first heating sleeve 17, and a second sensor 22 is provided at the lower end of the second heating sleeve 19. The first sensor 21 and the second sensor 22 are both temperature sensors, which can monitor the temperature of the material in the first connecting tube 3 and the fourth connecting tube 11. The first sensor 21 and the second sensor 22 are connected to an external controller. When the material temperature exceeds the threshold, the first heating wire 18 and the second heating wire 20 are automatically powered off.

[0032] In the present invention, the side walls of the first connecting tube 3 and the fourth connecting tube 11 are provided with a mounting ring 16, and the mounting ring 16 is threadedly connected to the first connecting tube 3 and the fourth connecting tube 11, so that the first connecting tube 3 and the fourth connecting tube 11 can be detached from the diversion module 1 and the nozzle mounting block 5, which is convenient for replacing the loss component separately.

[0033] It should be noted that the present invention is a hot runner for injection molds that is easy to maintain. The user installs the diversion module 1 and the four nozzle mounting blocks 5 in the mold with screws. When one or more nozzle mounting blocks 5 need to be maintained, the user can remove the multiple bolts 8 and nuts 9 on the two connecting plates 7 near the nozzle mounting blocks 5 and then unscrew the screws on the nozzle mounting blocks 5. The nozzle mounting blocks 5 can be removed to maintain the nozzle body 6 without disassembling the entire hot runner.

[0034] When removing multiple bolts 8 and nuts 9 on the two connecting plates 7, the connecting tube 15 can be rotated in the installation tube 14 so that the bolts 8 and nuts 9 on both sides of the two connecting plates 7 are rotated upward, making it easier to remove and install the bolts 8 and nuts 9.

[0035] 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 to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A hot runner for an injection mold that is easy to maintain, comprising a diversion module (1), a main pipe joint (2), four nozzle mounting blocks (5) and four nozzle bodies (6), characterized in that: The four side walls of the diversion module (1) are all connected to a first connecting pipe (3), the side wall of the nozzle mounting block (5) is connected to a fourth connecting pipe (11), the opposite ends of the first connecting pipe (3) and the fourth connecting pipe (11) are respectively connected to a third connecting pipe (10) and a second connecting pipe (4) through two connecting mechanisms, the third connecting pipe (10) and the second connecting pipe (4) are connected through a mounting mechanism, and the mounting mechanism includes two connecting plates (7) respectively fixedly connected to the side walls of the third connecting pipe (10) and the second connecting pipe (4), and three bolts (8) are provided on the two connecting plates (7), and the bolts (8) are provided with nuts (9).

2. The hot runner for injection mold that is easy to maintain according to claim 1, characterized in that: The connecting mechanism comprises a mounting cylinder (14) arranged on the side wall of the fourth connecting tube (11); the side wall of the mounting cylinder (14) is connected to a connecting cylinder (15); the connecting cylinder (15) is connected to the second connecting tube (4); and the mounting cylinder (14) and the connecting cylinder (15) are rotatably connected.

3. The hot runner for injection mold that is easy to maintain according to claim 2, characterized in that: A sealing groove (13) is provided on the side wall of one of the connecting disks (7), and a sealing ring (12) is provided on the side wall of the other connecting disk (7).

4. The hot runner for injection mold that is easy to maintain according to claim 1, characterized in that: The third connecting pipe (10) and the second connecting pipe (4) are corrugated pipes, and a plurality of the bolts (8) are arranged at equal intervals.

5. The hot runner for injection mold that is easy to maintain according to claim 1, characterized in that: A first heating sleeve (17) is provided on the side wall of the fourth connecting tube (11), and a first heating wire (18) is provided in the first heating sleeve (17).

6. The hot runner for injection mold that is easy to maintain according to claim 5, characterized in that: A second heating sleeve (19) is provided on the side wall of the first connecting tube (3), and a second heating wire (20) is provided in the second heating sleeve (19).

7. The hot runner for injection mold that is easy to maintain according to claim 6, characterized in that: A first sensor (21) is provided at the lower end of the first heating sleeve (17), and a second sensor (22) is provided at the lower end of the second heating sleeve (19). Both the first sensor (21) and the second sensor (22) are temperature sensors.

8. The hot runner for injection mold that is easy to maintain according to claim 6, characterized in that: The side walls of the first connecting tube (3) and the fourth connecting tube (11) are both provided with mounting rings (16), and the mounting rings (16) are threadedly connected to the first connecting tube (3) and the fourth connecting tube (11).

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