Rapid heating device for mold
By setting up conductive powder suspension and external electromagnetic heating half ring inside the plastic mold, the problem of slow mold heating speed is solved, rapid heating and cooling is achieved, and productivity and product quality are improved.
Patent Information
- Application Number
- CN202420453854.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-08
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-03-08
AI Technical Summary
The heating speed of existing plastic molds is slow, and the cooling waterway occupies space, affecting the forming cycle and productivity.
Design a mold rapid heating device. By setting a runner inside the mold and filling it with conductive powder suspension, installing an electromagnetic heating semi-ring and driving mechanism externally, heating and cooling using conductive powder suspension, ensuring heating speed and cooling efficiency .
It realizes rapid heating and cooling of the mold, improves the efficiency of the molding cycle, reduces the generation of bad products, and improves the appearance quality of the product.
Smart Images
Figure CN222178599U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molds, in particular to a rapid mold heating device. Background Art
[0002] The molding cycle of plastic molds for injection molding generally includes stages such as mold closing, injection, pressure holding, cooling, mold opening, and product removal. After mold closing, the mold must be heated to quickly heat up the mold. The mold must also be kept warm during the injection and pressure holding stages to increase the fluidity of the molten plastic so that the molten plastic can fill every corner of the mold cavity, ensure product quality, shorten the molding cycle, and improve productivity. After the pressure holding stage is completed, rapid cooling is required to shorten the molding cycle, improve productivity, suppress product defects, reduce the production of defective products, and improve the appearance quality of the product.
[0003] A common heating method for plastic molds is to set up an electric heating rod inside the mold, power on the electric heating rod to make it heat up, and transfer the heat of the electric heating rod to the plastic mold. A common cooling method for plastic molds is to open a cooling water channel inside the mold, and use the circulating cooling water to take away the heat of the mold. In this way, both water channels and electric heating rods must be set up inside the mold, so the heating speed is slower. Utility Model Content
[0004] 1. Technical issues to be resolved
[0005] In view of the deficiencies of the prior art, the utility model provides a rapid mold heating device, which has the advantage of fast mold heating speed and solves the problem of cooling water channels occupying heating space in the prior art.
[0006] (II) Technical solution
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rapid heating device for a mold, comprising a mold, a flow channel is opened inside the mold, the interior of the flow channel is filled with a conductive powder suspension, a heating mechanism is sleeved on the outer surface of the mold, and a supporting mechanism is arranged at one end of the mold, the supporting mechanism comprises: a supporting table, which is arranged on one side of the mold, and a clamping sleeve, which is fixedly installed on the side of the supporting table close to the mold and sleeved on the outer surface of the mold, the heating mechanism comprises an electromagnetic heating half ring, the electromagnetic heating half ring is sleeved on the outer ring of the mold, and plug-in half rings are fixedly installed at both ends of the electromagnetic heating half ring, and the upper and lower plug-in half rings are fixedly connected by a connecting ring.
[0008] In some embodiments, a rotating ring is provided on one side of the connecting rings that is away from each other, and a supporting sleeve is rotatably connected inside the rotating ring.
[0009] In some embodiments, a motor is fixedly mounted on the upper surface of the support platform, a gear ring is fixedly sleeved on the outer surface of the connecting ring close to the motor, and a gear that drives the gear ring to rotate is fixedly mounted on the output end of the motor.
[0010] In some embodiments, a conductive ring is fixedly installed on the outer ring of the connecting ring away from the motor, and a conductive contact piece is connected to the power supply end of the electromagnetic heating half ring, and the conductive contact piece is rotatably connected to the conductive ring.
[0011] In some embodiments, a lifting sleeve is provided at the bottom end of the electromagnetic heating half ring, and the lifting sleeve is sleeved on the outer surface of the electromagnetic heating half ring.
[0012] In some embodiments, a sliding rack is inserted into one side of the mold, the sliding rack is located on the side away from the support platform, and the horizontal end of the sliding rack is sleeved on the inner ring of the connecting ring.
[0013] In some embodiments, a plug-in hole is opened on the surface of the plug-in half ring, and a plug-in rod is fixedly installed on one side of the connecting ring close to the plug-in half ring, and the plug-in rod is sleeved inside the plug-in hole.
[0014] In some embodiments, the two ports of the flow channel protrude outward and are connected to and penetrated by a connecting pipe, and the outer surface of the connecting pipe is threadedly connected to a sealing plug.
[0015] Three beneficial effects
[0016] Compared with the prior art, the present invention provides a method having the following beneficial effects:
[0017] 1. The mold rapid heating device eliminates the heating rod in the original mold and increases the density of the flow channel. An electromagnetic heating half ring is set on the outside of the mold, and a conductive powder suspension is set inside the flow channel to heat the mold. After heating, the flow channel is used to circulate cooling liquid, thereby increasing the heating speed of the mold.
[0018] 2. The rapid heating device for the mold is provided with a rotating ring on one side of the connecting rings which are away from each other, the internal rotation of the rotating ring is connected with a support sleeve, the upper surface of the support sleeve is fixedly mounted with a motor, the outer surface of the connecting ring close to the motor is fixedly sleeved with a gear ring, and the output end of the motor is fixedly mounted with a gear for driving the gear ring to rotate. Through such an arrangement, the electromagnetic heating half ring can be driven to rotate, and even if part of the electromagnetic heating half ring is damaged, the conductive powder suspension can still be heated evenly. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the structure of the utility model;
[0020] Figure 2 This is a schematic diagram of the connection of the support mechanism of the utility model;
[0021] Figure 3 This is a half-section schematic diagram of the mold of the utility model;
[0022] Figure 4 This is a schematic diagram of the connection of the heating mechanism of the utility model;
[0023] Figure 5 This is a schematic diagram of the connection ring of the utility model.
[0024] In the figure: mold-1, runner-2, supporting mechanism-3, heating mechanism-4, supporting platform-301, ferrule-302, electromagnetic heating half ring-401, plug-in half ring-402, connecting ring-403, rotating ring-404, supporting sleeve-405, motor-406, gear ring-407, gear-408, conductive ring-409, conductive contact-410, lifting sleeve-411, sliding bracket-412, plug-in hole-413, plug-in rod-414, connecting pipe-415, sealing plug-416. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0026] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.
[0027] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0028] In the related art, a commonly used heating method for plastic molds is to set an electric heating rod inside the mold, energize the electric heating rod to make it heat up, and transfer the heat of the electric heating rod to the plastic mold. A commonly used cooling method for plastic molds is to open a cooling water channel inside the mold, and use circulating cooling water to take away the heat of the mold. In this way, both water channels and electric heating rods must be set inside the mold, so the heating speed is slower.
[0029] In order to solve the problems in the related technology to a certain extent, the embodiment of the present application provides a mold rapid heating device. When it is needed, it is only necessary to increase the density of the flow channel and set a conductive powder suspension in the flow channel, and heat it through an externally arranged electromagnetic heating half ring 401, so as to increase the heating speed of the mold. After heating, the mold is connected to the cooling mechanism, and the hot conductive powder suspension is discharged from the mold 1, and then cooled with the cold conductive powder suspension. At the same time, the electromagnetic heating half ring 401 can be driven to rotate by the motor 406. Even if part of the electromagnetic heating half ring 401 is damaged, the conductive powder suspension can still be heated evenly.
[0030] The present application is described below with reference to the accompanying drawings and specific embodiments:
[0031] Combination Figure 1-Figure 5 The embodiment of the present application provides a mold rapid heating device, including a mold 1, a flow channel 2 is opened inside the mold 1 to improve the density of the flow channel 2, the flow channel 2 is filled with a conductive powder suspension, and the conductive powder suspension can generate heat after external heating, the outer surface of the mold 1 is sleeved with a heating mechanism 4, and one end of the mold 1 is provided with a supporting mechanism 3, and the supporting mechanism 3 can support the mold 1. The supporting mechanism 3 includes: a supporting table 301, which is arranged on one side of the mold 1, and a clamping sleeve 302, which is fixedly installed on one side of the supporting table 301 close to the mold 1. The electromagnetic heating half ring 401 is sleeved on the outer surface of the mold 1, and the heating mechanism 4 includes an electromagnetic heating half ring 401. The electromagnetic heating half ring 401 is an electromagnetic induction phenomenon, that is, an alternating magnetic field with a constantly changing direction is generated by passing an alternating current through a coil. Eddy current will appear inside the conductor in the alternating magnetic field. This is because the eddy electric field drives the carriers in the conductor to move. The electromagnetic heating half ring 401 is sleeved on the outer ring of the mold 1, and plug-in half rings 402 are fixedly installed at both ends of the electromagnetic heating half ring 401. The upper and lower plug-in half rings 402 are fixedly connected by a connecting ring 403.
[0032] In some embodiments, a rotating ring 404 is provided on one side of the connecting ring 403 away from each other, and a supporting sleeve 405 is rotatably connected inside the rotating ring 404. With such an arrangement, the electromagnetic heating half ring 401 can be rotated so that the mold 1 is heated evenly.
[0033] Specifically, a motor 406 is fixedly installed on the upper surface of the support platform 301, a gear ring 407 is fixedly sleeved on the outer surface of the connecting ring 403 close to the motor 406, and a gear 408 that drives the gear ring 407 to rotate is fixedly installed on the output end of the motor 406. Through this arrangement, the electromagnetic heating half ring 401 can be driven to rotate.
[0034] Specifically, a conductive ring 409 is fixedly installed on the outer ring of the connecting ring 403 on the side away from the motor 406, and a conductive contact 410 is connected to the power supply end of the electromagnetic heating half ring 401. The conductive contact 410 is rotatably connected to the conductive ring 409. This arrangement can ensure that the electromagnetic heating half ring 401 can be energized during the rotation process.
[0035] In some embodiments, a lifting sleeve 411 is provided at the bottom end of the electromagnetic heating half ring 401 , and the lifting sleeve 411 is sleeved on the outer surface of the electromagnetic heating half ring 401 . Such a setting can support the electromagnetic heating half ring 401 .
[0036] In some embodiments, a sliding rack 412 is inserted into one side of the mold 1, and the sliding rack 412 is located on the side away from the support platform 301. The horizontal end of the sliding rack 412 is sleeved on the inner circle of the connecting ring 403. Through this arrangement, the mold 1 can be lifted.
[0037] In some embodiments, a plug-in hole 413 is provided on the surface of the plug-in half ring 402, and a plug-in rod 414 is fixedly installed on the side of the connecting ring 403 close to the plug-in half ring 402, and the plug-in rod 414 is sleeved inside the plug-in hole 413. Such an arrangement can ensure that the upper and lower electromagnetic heating half rings 401 can rotate at the same time.
[0038] In some embodiments, two ports of the flow channel 2 protrude outward and are connected to and penetrated by a connecting pipe 415 , and a sealing plug 416 is threadedly connected to the outer surface of the connecting pipe 415 . This arrangement can facilitate the circulation of the liquid in the flow channel 2 .
[0039] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.
[0040] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0041] 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 mold rapid heating device, comprising a mold (1), Features: The mold (1) has a flow channel (2) formed inside, the flow channel (2) is filled with a conductive powder suspension, and the outer surface of the mold (1) is sleeved with a heating mechanism (4); A support mechanism (3) is provided at one end of the mold (1), and the support mechanism (3) comprises: A support platform (301) is arranged on one side of the mold (1); A ferrule (302) is fixedly mounted on a side of the support platform (301) close to the mold (1) and sleeved on an outer surface of the mold (1); The heating mechanism (4) comprises an electromagnetic heating half ring (401), which is sleeved on the outer ring of the mold (1), and plug-in half rings (402) are fixedly installed at both ends of the electromagnetic heating half ring (401), and the upper and lower plug-in half rings (402) are fixedly connected via a connecting ring (403).
2. A mold rapid heating device according to claim 1, Features: A rotating ring (404) is provided on one side of the connecting ring (403) that is away from each other, and a supporting sleeve (405) is rotatably connected inside the rotating ring (404).
3. A mold rapid heating device according to claim 2, Features: A motor (406) is fixedly mounted on the upper surface of the support platform (301), a gear ring (407) is fixedly sleeved on the outer surface of the connecting ring (403) close to the motor (406), and a gear (408) for driving the gear ring (407) to rotate is fixedly mounted on the output end of the motor (406).
4. A mold rapid heating device according to claim 3, Features: A conductive ring (409) is fixedly mounted on the outer ring of the connecting ring (403) at a side away from the motor (406), and a conductive contact piece (410) is connected to the power supply end of the electromagnetic heating half ring (401), and the conductive contact piece (410) is rotatably connected to the conductive ring (409).
5. A mold rapid heating device according to any one of claims 1 to 3, Features: A lifting sleeve (411) is provided at the bottom end of the electromagnetic heating half ring (401), and the lifting sleeve (411) is sleeved on the outer surface of the electromagnetic heating half ring (401).
6. A mold rapid heating device according to claim 1, Features: A sliding bracket (412) is inserted into one side of the mold (1), and the sliding bracket (412) is located on a side away from the support platform (301). The horizontal end of the sliding bracket (412) is sleeved on the inner ring of the connecting ring (403).
7. A mold rapid heating device according to claim 1, Features: The surface of the plug-in half ring (402) is provided with a plug-in hole (413), and a plug-in rod (414) is fixedly installed on one side of the connecting ring (403) close to the plug-in half ring (402), and the plug-in rod (414) is sleeved inside the plug-in hole (413).
8. A mold rapid heating device according to claim 1, Features: The two ports of the flow channel (2) protrude outwards and are connected to and penetrated by a connecting pipe (415), and a sealing plug (416) is threadedly connected to the outer surface of the connecting pipe (415).