Hot runner sprue anti-blocking device

Abstract

The utility model relates to the technical field of hot runners, and discloses a hot runner sprue anti-blocking device which comprises a material box, a discharging pipe is fixedly connected to the front side of the material box, a heating mechanism is arranged on the front side in the material box, a circulating mechanism is arranged on the front side of the material box, and the heating mechanism comprises a heat absorption assembly and a reinforcing mechanism. The heat absorption assembly is arranged on the front side in the material box, and the reinforcing mechanism is arranged on the outer side of the heat absorption assembly. According to the hot runner pouring gate anti-blocking device, through the arranged circulation mechanism, a worker can drive oil liquid to complete circulation inside and outside the material box only by starting a liquid pump, the internal oil liquid is heated through the temperature of liquid plastic in the material box, no heating equipment is needed, the structure is simple, follow-up maintenance is convenient, and practicability is high. Meanwhile, the liquid pumping pipe and the liquid outlet pipe are arranged on the upper side and the lower side of the left connecting pipe and the right connecting pipe respectively, so that oil liquid in the upper heat absorption bent pipe and the lower heat absorption bent pipe flows out from the top and flows in from the bottom after the liquid pump is started.

Description

Technical Field

[0001] The utility model relates to the technical field of hot runners, in particular to a hot runner gate anti-clogging device. Background Art

[0002] At present, hot runner molds are widely used in the injection molding industry. The hot runner technology can greatly improve the product quality and save raw materials and labor costs. When the hot runner is used, the plastic is transported in the hot runner in a molten state. In order to ensure that the plastic does not solidify, a heating ring is usually installed outside the hot runner for heating. However, at the gate position, a connecting flange needs to be installed.

[0003] According to the "A hot runner gate anti-clogging device (publication number: CN 213260861 U; application number: 202021376066.8)" published on the patent network, the above application is aimed at: "The connecting flange is large in size, which makes the heating effect of the heating ring on the gate poor. As a result, plastic condensation is likely to occur in the gate, commonly known as frozen gel. Frozen gel will affect product quality. In severe cases, it will cause gate blockage and require production suspension for maintenance." The problem has been optimized, but the internal structure of the anti-blocking device in the above application is relatively complicated, and the internal structure is easily damaged by long-term heat exposure, and it is not easy to repair it. At the same time, the anti-blocking device in the above application requires additional heating energy points when in use, and the utilization rate of the heat energy of the liquid plastic in the material box is low. Utility Model Content

[0004] The utility model aims to provide a hot runner gate anti-clogging device to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the utility model provides the following technical solutions: a hot runner gate anti-clogging device, comprising a material box, a discharge pipe is fixedly connected to the front side of the material box, a heating mechanism is arranged on the front side of the material box, and a circulation mechanism is arranged on the front side of the material box.

[0006] The heating mechanism comprises a heat absorbing component and a reinforcement mechanism. The heat absorbing component is arranged at the front side of the material box, and the reinforcement mechanism is arranged at the outside of the heat absorbing component.

[0007] The circulation mechanism includes a driving component and a heating component. The driving component is arranged on the front side of the material box, and the heating component is arranged on the outer ring of the discharge pipe.

[0008] Preferably, the heat absorption component includes a heat absorption bent pipe, the heat absorption bent pipe is fixedly connected to the front side of the material box, and the front side of the heat absorption bent pipe is fixedly connected with a connecting pipe.

[0009] Preferably, the reinforcement mechanism comprises a support sleeve, the support sleeve is sleeved on the outer ring of the heat absorbing bent pipe, the outer ring of the support sleeve is fixedly connected to a reinforcement frame, and the reinforcement frame is fixedly connected to the inner front side of the material box.

[0010] Preferably, the driving assembly includes a liquid pump, which is arranged on the front side of the material box, a liquid extraction tube is fixedly connected to the left side of the liquid pump, the liquid extraction tube is fixedly connected to the top of the front side of the left connecting tube, and a liquid infusion tube is fixedly connected to the right side of the liquid pump.

[0011] Preferably, the heating assembly includes a heating sleeve, which is sleeved on the outer ring of the discharge pipe, the heating sleeve is fixedly connected to the right side of the infusion pipe, a meander baffle is fixedly connected inside the heating sleeve, a discharge pipe is fixedly connected to the bottom right side of the heating sleeve, the discharge pipe is fixedly connected to the bottom front side of the right connecting pipe, an insulation shell is provided on the top of the heating sleeve, and the insulation shell is sleeved on the outer ring of the discharge pipe.

[0012] Compared with the prior art, the utility model provides a hot runner gate anti-clogging device, which has the following beneficial effects:

[0013] 1. The hot runner gate anti-clogging device has a heating mechanism, and the heat absorption elbow is curved in the material box, which increases the heat exchange time between the oil in the heat absorption elbow and the liquid plastic inside the material box, increases the temperature of the oil in the heat absorption elbow when entering the heating sleeve, and increases the heating effect on the plastic at the bottom of the discharge pipe. At the same time, the oil-to-liquid ratio difference between the multiple heat absorption elbows and the external liquid extraction pipe, liquid infusion pipe and liquid discharge pipe is large, which slows down the flow rate of the oil in the multiple heat absorption elbows, increases the retention time of the oil in the heat absorption elbow, and further increases the heating effect of the oil after passing through the heat absorption elbow.

[0014] 2. The hot runner gate anti-clogging device, through the circulation mechanism set up, the staff only needs to start the liquid pump to drive the oil to circulate inside and outside the material box, and use the temperature of the liquid plastic in the material box to heat the internal oil, without the participation of heating equipment. The structure is simple and convenient for subsequent maintenance. The staff only needs to repair the liquid pump, which is convenient for the staff to use. At the same time, the liquid suction pipe and the liquid outlet pipe are respectively arranged on the upper and lower sides of the left and right connecting pipes, so that after the liquid pump is started, the oil in the upper and lower heat absorbing elbows can be discharged from the top and entered from the bottom, which improves the circulation of the oil in the multiple heat absorbing elbows, so that the oil in the heat absorbing elbows can participate in the circulation, and the utilization rate of the oil inside the heat absorbing elbows is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0016] Figure 1 It is a front schematic diagram of the utility model;

[0017] Figure 2 It is a partial structural sectional view of the utility model;

[0018] Figure 3 It is a schematic diagram of the inner side of part of the structure of the utility model;

[0019] Figure 4 It is a partial structural schematic diagram of the utility model;

[0020] Figure 5 It is a cross-sectional view of the partial structure of the circulation mechanism;

[0021] Figure 6 It is a cross-sectional view of the partial structure of the heating component.

[0022] In the figure: 1. heating mechanism; 11. heat absorption component; 1101. heat absorption bent pipe; 1102. connecting pipe; 12. reinforcement mechanism; 1201. support sleeve; 1202. reinforcement frame; 2. circulation mechanism; 21. drive component; 2101. liquid pump; 2102. liquid extraction pipe; 2103. liquid infusion pipe; 22. heating component; 2201. heating sleeve; 2202. meandering baffle; 2203. liquid outlet pipe; 2204. insulation shell; 3. material box; 31. material outlet pipe. DETAILED DESCRIPTION

[0023] 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.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The utility model provides a technical solution: Embodiment 1

[0026] Combination Figures 1 to 4 A hot runner gate anti-clogging device includes a material box 3, a discharge pipe 31 is fixedly connected to the front side of the material box 3, a heating mechanism 1 is arranged on the front side of the material box 3, and a circulation mechanism 2 is arranged on the front side of the material box 3.

[0027] The heating mechanism 1 includes a heat absorbing component 11 and a reinforcement mechanism 12 . The heat absorbing component 11 is arranged at the front side of the material box 3 , and the reinforcement mechanism 12 is arranged at the outside of the heat absorbing component 11 .

[0028] The heat absorption component 11 includes a heat absorption bent pipe 1101, which is fixedly connected to the front side of the material box 3, and a connecting pipe 1102 is fixedly connected to the front side of the heat absorption bent pipe 1101. The reinforcement mechanism 12 includes a support sleeve 1201, which is sleeved on the outer ring of the heat absorption bent pipe 1101, and a reinforcement frame 1202 is fixedly connected to the outer ring of the support sleeve 1201, and the reinforcement frame 1202 is fixedly connected to the inner front side of the material box 3.

[0029] Furthermore: the heat absorption bend 1101 is arranged in a curved shape in the material box 3, which increases the heat exchange time between the oil in the heat absorption bend 1101 and the liquid plastic in the material box 3, increases the temperature of the oil in the heat absorption bend 1101 when entering the heating sleeve 2201, and increases the heating effect on the plastic at the bottom end of the discharge pipe 31. At the same time, the oil-to-liquid ratio difference between the multiple heat absorption bends 1101 and the external liquid extraction pipe 2102, the liquid infusion pipe 2103 and the liquid outlet pipe 2203 is large, which slows down the flow rate of the oil in the multiple heat absorption bends 1101, increases the retention time of the oil in the heat absorption bend 1101, and further increases the heating effect of the oil after passing through the heat absorption bend 1101. Embodiment 2

[0030] See also Figures 1 to 6 On the basis of the first embodiment, it is further obtained that the circulation mechanism 2 includes a driving component 21 and a heating component 22, the driving component 21 is arranged on the front side of the material box 3, and the heating component 22 is arranged on the outer ring of the discharge pipe 31.

[0031] The driving component 21 includes a liquid pump 2101, which is arranged on the front side of the material box 3. A liquid extraction tube 2102 is fixedly connected to the left side of the liquid pump 2101, and the liquid extraction tube 2102 is fixedly connected to the top of the front side of the left connecting tube 1102. A liquid infusion tube 2103 is fixedly connected to the right side of the liquid pump 2101. The heating component 22 includes a heating sleeve 2201, which is sleeved on the outer ring of the discharge pipe 31, and the heating sleeve 2201 is fixedly connected to the right side of the infusion tube 2103. A meander baffle 2202 is fixedly connected inside the heating sleeve 2201, and a liquid discharge pipe 2203 is fixedly connected to the bottom of the right side of the heating sleeve 2201, and the liquid discharge pipe 2203 is fixedly connected to the bottom of the front side of the right connecting tube 1102. An insulation shell 2204 is arranged on the top of the heating sleeve 2201, and the insulation shell 2204 is sleeved on the outer ring of the discharge pipe 31.

[0032] Furthermore: the staff only needs to start the liquid pump 2101 to drive the oil to circulate inside and outside the material box 3, and use the temperature of the liquid plastic in the material box 3 to heat the internal oil. There is no need for heating equipment to participate in it. The structure is simple and convenient for subsequent maintenance. The staff only needs to repair the liquid pump 2101, which is convenient for the staff to use. At the same time, the liquid suction pipe 2102 and the liquid outlet pipe 2203 are respectively arranged on the upper and lower sides of the left and right connecting pipes 1102, so that after the liquid pump 2101 is started, the oil in the upper and lower heat absorption bends 1101 will be discharged from the top and entered from the bottom, thereby improving the circulation of the oil in the multiple heat absorption bends 1101, so that the oil in the heat absorption bends 1101 can all participate in the circulation, thereby increasing the utilization rate of the oil inside the heat absorption bends 1101.

[0033] In actual operation, when the device is used, the staff starts the liquid pump 2101, and the liquid pump 2101 starts to extract the oil in the heat-absorbing curved pipe 1101 through the liquid extraction pipe 2102, and then the oil enters the heating sleeve 2201 through the liquid delivery pipe 2103. The oil in the heating sleeve 2201 exchanges heat with the discharge pipe 31 through the heating sleeve 2201, and heats the plastic in the discharge pipe 31. At this time, the heating work of the plastic at the bottom of the discharge pipe 31 is completed;

[0034] Afterwards, the oil in the heating sleeve 2201 leaves the heating sleeve 2201 through the liquid outlet pipe 2203 and enters the heat absorption elbow 1101 through the connecting pipe 1102, so that the cooled oil enters the heat absorption elbow 1101 to absorb heat and heat up, and the heating work of the bottom end of the discharge pipe 31 is completed in this reciprocating manner.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A hot runner gate anti-clogging device, comprising a material box (3), characterized in that: A discharge pipe (31) is fixedly connected to the front side of the material box (3), a heating mechanism (1) is arranged on the front side of the material box (3), and a circulation mechanism (2) is arranged on the front side of the material box (3); The heating mechanism (1) comprises a heat absorbing component (11) and a reinforcement mechanism (12); the heat absorbing component (11) is arranged on the front side of the material box (3), and the reinforcement mechanism (12) is arranged on the outside of the heat absorbing component (11); The circulation mechanism (2) comprises a driving component (21) and a heating component (22); the driving component (21) is arranged on the front side of the material box (3), and the heating component (22) is arranged on the outer ring of the discharge pipe (31).

2. The hot runner gate anti-clogging device according to claim 1, characterized in that: The heat absorption component (11) comprises a heat absorption bent pipe (1101), the heat absorption bent pipe (1101) is fixedly connected to the front side of the material box (3), and the front side of the heat absorption bent pipe (1101) is fixedly connected to a connecting pipe (1102).

3. The hot runner gate anti-clogging device according to claim 1, characterized in that: The reinforcement mechanism (12) comprises a support sleeve (1201), the support sleeve (1201) being sleeved on the outer ring of the heat absorbing bent pipe (1101), the outer ring of the support sleeve (1201) being fixedly connected to a reinforcement frame (1202), and the reinforcement frame (1202) being fixedly connected to the inner front side of the material box (3).

4. The hot runner gate anti-clogging device according to claim 1, characterized in that: The driving assembly (21) comprises a liquid pump (2101), the liquid pump (2101) being arranged at the front side of the material box (3), and a liquid extraction pipe (2102) being fixedly connected to the left side of the liquid pump (2101).

5. The hot runner gate anti-clogging device according to claim 4, characterized in that: The liquid extraction tube (2102) is fixedly connected to the front top of the left connecting tube (1102), and the right side of the liquid pump (2101) is fixedly connected to a liquid infusion tube (2103).

6. The hot runner gate anti-clogging device according to claim 1, characterized in that: The heating assembly (22) comprises a heating sleeve (2201), the heating sleeve (2201) is sleeved on the outer ring of the discharge pipe (31), the heating sleeve (2201) is fixedly connected to the right side of the infusion pipe (2103), a meander baffle (2202) is fixedly connected inside the heating sleeve (2201), and the bottom of the right side of the heating sleeve (2201) is fixedly connected to the discharge pipe (2203).

7. The hot runner gate anti-clogging device according to claim 6, characterized in that: The liquid outlet pipe (2203) is fixedly connected to the front bottom of the right connecting pipe (1102), and a heat-insulating shell (2204) is provided on the top of the heating sleeve (2201), and the heat-insulating shell (2204) is sleeved on the outer ring of the material outlet pipe (31).

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