A diverter plate

Abstract

The utility model relates to the technical field of splitter plates, and in particular to a splitter plate, comprising a splitter plate body and a feed nozzle connected to a flow channel inside the splitter plate body; wherein a sealing cover is arranged outside the connection position between the feed nozzle and the splitter plate body, the top end of the sealing cover is sealedly connected to the outer peripheral surface of the feed nozzle, and the bottom end of the sealing cover is sealedly connected to the upper surface of the splitter plate body, and a sealed space is formed between the sealing cover, the feed nozzle and the splitter plate body; a diaphragm pressure switch is fixedly installed on the sealing cover, and a power supply is electrically connected to an alarm through the diaphragm pressure switch. The utility model can promptly sound an alarm when a material leaks, thereby improving the safety of the separation plate.

Description

Technical Field

[0001] The utility model relates to the technical field of diverter plates, in particular to a diverter plate. Background Art

[0002] The manifold is also called the hot runner manifold. It is the central component of the hot runner system. It distributes the plastic melt transmitted from the main runner nozzle to the nozzles of each injection point through the runner.

[0003] The sealing of the manifold plays an important role in its normal operation. However, in actual use, the manifold often leaks plastic melt. Among them, the connection between the main channel nozzle and the manifold is the weak link, and the probability of plastic melt leakage at this position is also the highest.

[0004] For example, the Chinese utility model patent with the announcement number CN213382750U discloses a hot runner manifold plate connection device and a hot runner system. The hot runner manifold plate connection device includes a manifold plate, a main inlet connected to one side of the manifold plate, a guide ring connected to the other side of the manifold plate, and a fastener, the fastener passes through the main inlet and the manifold plate in sequence, and is fixedly connected to the guide ring, and the manifold plate is clamped between the main inlet and the guide ring. Compared with the prior art, the utility model uses fasteners to fix the guide rings and the main inlet on both sides of the manifold plate, so that the main inlet can be firmly and reliably connected to the manifold plate, which not only improves the accuracy of installation, but also improves the convenience of disassembly operation.

[0005] The technical solution provided by the above patent only changes the installation method of the main inlet, but in actual use, there will still be leakage between the main inlet and the upper surface of the diverter plate. For example, once the fasteners are loose, leakage problems will inevitably occur, which is not conducive to actual use. Utility Model Content

[0006] The purpose of the utility model is to provide a splitter plate to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a splitter plate, comprising a splitter plate body and a feed nozzle connected to a flow channel inside the splitter plate body;

[0008] Wherein, a sealing cover is arranged outside the connection position between the feed nozzle and the manifold body, the top end of the sealing cover is sealedly connected to the outer peripheral surface of the feed nozzle, and the bottom end of the sealing cover is sealedly connected to the upper surface of the manifold body, and a sealed space is formed between the sealing cover, the feed nozzle and the manifold body;

[0009] A diaphragm pressure switch is fixedly mounted on the sealing cover, and the power supply is electrically connected to the alarm through the diaphragm pressure switch.

[0010] Preferably, the sealing cover is cylindrical, and the top end of the sealing cover is detachably connected to the outer peripheral surface of the feed nozzle.

[0011] Preferably, a fixing ring is sleeved and fixed on the outer periphery of the feed nozzle, a second sealing ring is provided on the upper surface of the fixing ring, and the inner top wall of the sealing cover presses the second sealing ring against the fixing ring.

[0012] Preferably, the upper surface of the second sealing ring is a conical surface with a diameter gradually decreasing from top to bottom.

[0013] Preferably, a first sealing ring is provided at the bottom end of the sealing cover.

[0014] Preferably, an annular flange is provided at the bottom end of the sealing cover, an annular groove is formed on the upper surface of the first sealing ring, and the annular flange is inserted into the interior of the annular groove in an interference fit manner.

[0015] Preferably, a threaded sleeve is provided on the outer periphery of the feed nozzle, a threaded hole matching with the threaded sleeve is provided on the top of the sealing cover, and the sealing cover is threadedly connected with the threaded sleeve through the threaded hole.

[0016] Preferably, the threaded sleeve and the feed nozzle are integrally formed.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model provides a sealing cover which can cooperate with the feed nozzle and the diverter plate body to form a sealed space around the connection position of the feed nozzle and the diverter plate body, and the sealed space is not connected to the external environment. Then, in cooperation with a diaphragm pressure switch and an alarm, if leakage occurs between the feed nozzle and the diverter plate body, the leaked material will enter the sealed space, causing the air pressure inside the sealed space to increase. Once the air pressure inside the sealed space increases to a predetermined value, the diaphragm pressure switch will open, so that the alarm is connected to the power supply, and the alarm will sound an alarm to remind the staff to deal with it in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 For this utility model Figure 1 A schematic diagram of a partial cross-sectional structure;

[0021] Figure 3 For this utility model Figure 2The enlarged structural diagram at A in the middle;

[0022] Figure 4 This is a schematic diagram of the front cross-sectional structure of the sealing cover of the utility model;

[0023] Figure 5 For this utility model Figure 4 Enlarged structural diagram at B in the middle.

[0024] In the figure:

[0025] 1. Diverter plate body; 2. Feed nozzle; 3. Sealing cover; 31. First sealing ring; 311. Annular flange; 32. Threaded hole; 33. Fixing ring; 34. Second sealing ring; 341. Conical surface; 35. Threaded sleeve; 36. Sealed space; 4. Diaphragm pressure switch; 5. Alarm. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0028] A diverter plate includes a diverter plate body 1 and a feed nozzle 2 connected to the flow channel inside the diverter plate body 1; in actual use, the molten material flows from the feed nozzle 2 into the flow channel inside the diverter plate body 1, and is diverted to each discharge nozzle through the flow channel inside the diverter plate body 1, thereby realizing the diversion of the material. The above are all prior arts and will not be described in detail. The differences between the embodiments of the utility model and the prior art are as follows.

[0029] like Figure 1-Figure 5As shown, a sealing cover 3 is provided on the outside of the connection position between the feed nozzle 2 and the diverter plate body 1, the top end of the sealing cover 3 is sealedly connected to the outer peripheral surface of the feed nozzle 2, and the bottom end of the sealing cover 3 is sealedly connected to the upper surface of the diverter plate body 1, and a sealed space 36 is formed between the sealing cover 3, the feed nozzle 2 and the diverter plate body 1. The sealing cover 3 in this embodiment can be made of metal material, such as a sealing cover 3 made of stainless steel. In this embodiment, the sealing cover 3 can support and position the feed nozzle 2 to prevent the feed nozzle 2 from tilting, so that the feed nozzle 2 and the diverter plate body 1 can maintain a sealed state to prevent material leakage, and can cooperate with the alarm 5 below to promptly sound an alarm when leakage occurs between the feed nozzle 2 and the diverter plate body 1. Specifically, a diaphragm pressure switch 4 is fixedly installed on the sealing cover 3, and the power supply is electrically connected to the alarm 5 through the diaphragm pressure switch 4. In actual use, if leakage occurs between the feed nozzle 2 and the diverter plate body 1, the leaked material will enter the sealed space 36, causing the air pressure inside the sealed space 36 to increase. Once the air pressure inside the sealed space 36 increases to a predetermined value, the diaphragm pressure switch 4 will open, connecting the alarm 5 to the power supply, and the alarm 5 will sound an alarm to remind the staff to deal with it in time.

[0030] In the above technical scheme, the sealing cover 3 is set up to cooperate with the feed nozzle 2 and the diverter plate body 1 to form a sealed space 36 around the connection position of the feed nozzle 2 and the diverter plate body 1, and the sealed space 36 is not connected to the external environment. Then, in cooperation with the diaphragm pressure switch 4 and the alarm 5, if there is a leakage between the feed nozzle 2 and the diverter plate body 1, the leaked material will enter the inside of the sealed space 36, causing the air pressure inside the sealed space 36 to increase. Once the air pressure inside the sealed space 36 increases to a predetermined value, the diaphragm pressure switch 4 will open, so that the alarm 5 is connected to the power supply, and the alarm 5 will sound an alarm to remind the staff to deal with it in time.

[0031] like Figure 2-Figure 4 As shown, the sealing cover 3 is cylindrical, and the top of the sealing cover 3 is detachably connected to the outer peripheral surface of the feed nozzle 2. Further, a threaded sleeve 35 is provided on the outer periphery of the feed nozzle 2, and a threaded hole 32 matching the threaded sleeve 35 is provided on the top of the sealing cover 3. The sealing cover 3 is threadedly connected to the threaded sleeve 35 through the threaded hole 32, and the threaded sleeve 35 and the feed nozzle 2 are integrally formed.

[0032] In actual use, the sealing cover 3 can be directly put on the outside of the feed nozzle 2, and then the sealing cover 3 can be twisted to make the sealing cover 3 threadedly connected with the threaded sleeve 35 through the threaded hole 32 on the top thereof, thereby completing the detachable connection of the sealing cover 3, and at the same time, the squeezing force of the sealing cover 3 on the first sealing ring 31 and the second sealing ring 34 below can be increased, thereby realizing the sealing connection between the sealing cover 3 and the diverter plate body 1 and the feed nozzle 2.

[0033] like Figure 3-Figure 5 As shown, a fixing ring 33 is sleeved and fixed on the outer periphery of the feed nozzle 2. The material of the fixing ring 33 can be the same as that of the feed nozzle 2. A second sealing ring 34 is arranged on the upper surface of the fixing ring 33. The inner top wall of the sealing cover 3 presses the second sealing ring 34 against the fixing ring 33. Further, as Figure 5 As shown, the upper surface of the second sealing ring 34 is a tapered surface 341 that gradually decreases in diameter from top to bottom. With the setting of the tapered surface 341, when the sealing cover 3 is gradually threadedly connected with the threaded sleeve 35 through the threaded hole 32, the sealing cover 3 will gradually move toward the manifold body 1 as a whole, so that the inner top wall of the sealing cover 3 gradually presses down the second sealing ring 34, and the bottom end of the sealing cover 3 gradually presses down the first sealing ring 31. At this time, the existence of the tapered surface 341 can increase the deformation of the second sealing ring 34 in the vertical direction, so that the sealing cover 3 can simultaneously press the first sealing ring 31 and the second sealing ring 34, so as to achieve complete sealing of the sealing space 36.

[0034] like Figure 1 , Figure 3 and Figure 4 As shown, a first sealing ring 31 is provided at the bottom end of the sealing cover 3. Figure 4 As shown, the bottom end of the sealing cover 3 is provided with an annular flange 311, and an annular groove is formed on the upper surface of the first sealing ring 31. The annular flange 311 is inserted into the inner part of the annular groove in an interference fit manner. The function of the annular flange 311 is to limit the position of the first sealing ring 31 to prevent it from contacting with the bottom end of the sealing cover 3, and the sealing effect is good.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A splitter plate, characterized in that: It comprises a manifold body (1) and a feed nozzle (2) connected to a flow channel inside the manifold body (1); Wherein, a sealing cover (3) is arranged on the outer side of the connection position between the feed nozzle (2) and the manifold body (1), the top end of the sealing cover (3) is sealedly connected to the outer peripheral surface of the feed nozzle (2), and the bottom end of the sealing cover (3) is sealedly connected to the upper surface of the manifold body (1), and a sealed space (36) is formed between the sealing cover (3), the feed nozzle (2) and the manifold body (1); A diaphragm pressure switch (4) is fixedly mounted on the sealing cover (3), and a power source is electrically connected to the alarm (5) via the diaphragm pressure switch (4).

2. A splitter plate according to claim 1, characterized in that: The sealing cover (3) is cylindrical, and the top end of the sealing cover (3) is detachably connected to the outer peripheral surface of the feed nozzle (2).

3. A manifold according to claim 1, characterized in that: A fixing ring (33) is sleeved and fixed on the outer periphery of the feed nozzle (2), a second sealing ring (34) is provided on the upper surface of the fixing ring (33), and the inner top wall of the sealing cover (3) presses the second sealing ring (34) against the fixing ring (33).

4. A splitter plate according to claim 3, characterized in that: The upper surface of the second sealing ring (34) is a tapered surface (341) that gradually decreases in diameter from top to bottom.

5. A manifold according to claim 1, characterized in that: A first sealing ring (31) is provided at the bottom end of the sealing cover (3).

6. A manifold according to claim 5, characterized in that: The bottom end of the sealing cover (3) is provided with an annular flange (311), the upper surface of the first sealing ring (31) is formed with an annular groove, and the annular flange (311) is inserted into the interior of the annular groove in an interference fit manner.

7. A manifold according to claim 2, characterized in that: A threaded sleeve (35) is arranged on the outer periphery of the feed nozzle (2), a threaded hole (32) matching with the threaded sleeve (35) is opened at the top end of the sealing cover (3), and the sealing cover (3) is threadedly connected with the threaded sleeve (35) through the threaded hole (32).

8. A splitter plate according to claim 7, characterized in that: The threaded sleeve (35) and the feed nozzle (2) are integrally formed.

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