Mold heat preservation structure and mold opening device

Abstract

The utility model discloses a mold heat preservation structure and a mold opening device, and relates to the technical field of rubber processing. The mold heat preservation structure comprises an upper hot plate assembly and a lower hot plate assembly, and the upper hot plate assembly is rotatably arranged on one side of the rack; the upper hot plate assembly is used for carrying out heating and heat preservation on the mold, and the upper hot plate assembly can support the separated first mold plate; the lower hot plate assembly is arranged on the rack; the lower hot plate assembly is used for conducting heating and heat preservation on the mold, and the lower hot plate assembly can support the second mold plate. According to the technical scheme provided by the utility model, heat preservation operation can be carried out on the mold in the process of taking materials and waiting of the mold, so that the condition of temperature loss during subsequent pressurizing and vulcanizing processing of the mold is avoided, and the quality stability of a rubber product is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to rubber processing technical field, especially a mould heat preservation structure and mould opening device. BACKGROUND

[0002] In the process of producing and processing rubber products, the mould needs to be pressurized and vulcanized in a rubber injection machine (i.e. the rubber material is injected into the heated mould through the rubber injection machine for forming and vulcanization), and then the mould is moved from the rubber injection machine to the mould opening device in the material taking station, and the first mould plate and the second mould plate of the mould are separated from each other by the mould opening device, so that the operator can take out the rubber product in the cavity area of the second mould plate.

[0003] Because the pressurized vulcanization step needs to consume a certain amount of time, in order to improve production efficiency, some enterprises will adopt a production mode of one rubber injection machine matched with two sets of moulds, in order to facilitate understanding, the above two sets of moulds are named as first mould and second mould; when the first mould is pressurized and vulcanized, the second mould is operated for material taking; when the second mould is pressurized and vulcanized, the first mould is operated for material taking; and the operation is alternately carried out in turn.

[0004] In the prior art, when one mould finishes taking material and waits for the other mould to be pressurized and vulcanized, because the mould is in a normal temperature environment at this time, the normal temperature value is lower than the required mould temperature during pressurized vulcanization, so that the subsequent mould pressurized and vulcanized will cause temperature loss, resulting in unstable quality of the rubber product.

[0005] It should be noted that the above content is only used to assist understanding of the technical scheme of the utility model, and does not mean that the above content is prior art. UTILITY MODEL CONTENT

[0006] The main purpose of the utility model is to provide a mould heat preservation structure and mould opening device, which can perform heat preservation operation on the mould during the process of taking material and waiting, so as to avoid temperature loss during the subsequent pressurized vulcanization of the mould, and ensure the quality stability of the subsequent rubber product.

[0007] In order to achieve the above purpose, the utility model provides a mould heat preservation structure applied to a mould opening device, the mould opening device comprises a rack for bearing the mould, wherein the mould comprises a first mould plate and a second mould plate which can be separated from each other;

[0008] Specifically, the mould heat preservation structure comprises:

[0009] An upper hot plate assembly is rotatably arranged on one side of the frame, and is used for heating and keeping warm the mold. The upper hot plate assembly can support the separated first mold plate.

[0010] A lower hot plate assembly is arranged on the frame, and is used for heating and keeping warm the mold. The lower hot plate assembly can support the second mold plate.

[0011] In an embodiment, the upper hot plate assembly comprises an upper hot plate and a first driving mechanism. The first driving mechanism is used for driving the upper hot plate to rotate to be in mutual adhesion with the top side of the mold, so that the upper hot plate heats and warms the mold.

[0012] In an embodiment, the first driving mechanism comprises a telescopic driving device and a connecting rod. The telescopic driving device is fixedly connected with the frame. A first end of the connecting rod is movably connected with the upper hot plate. A second end of the connecting rod is movably connected with a driving end of the telescopic driving device. A middle part of the connecting rod is rotatably connected with the frame through a first rotating shaft. A side part of the upper hot plate is rotatably connected with the frame through a second rotating shaft.

[0013] Under the driving action of the telescopic driving device, the connecting rod rotates around the first rotating shaft, so as to drive the upper hot plate to rotate around the second rotating shaft to a first position or a second position. When the upper hot plate rotates to the first position, the upper hot plate is in mutual adhesion with the top side of the mold. When the upper hot plate rotates to the second position, the upper hot plate is out of mutual adhesion with the top side of the mold.

[0014] In an embodiment, a linear sliding mechanism is arranged at the connection between the connecting rod and the upper hot plate. The linear sliding mechanism comprises a sliding block and a sliding rail which are movably connected with each other. The sliding block is rotatably connected with the first end of the connecting rod. The sliding rail is fixedly connected with the upper hot plate.

[0015] In an embodiment, the sliding rail is provided with a first limiting block and a second limiting block at opposite ends of the rail direction. The first limiting block and the second limiting block are used for abutting against the sliding block.

[0016] In an embodiment, the first driving mechanism comprises a limiting frame. The limiting frame is provided with a contact sensor. The contact sensor is electrically connected with the telescopic driving device. When the upper hot plate rotates to the second position, the upper hot plate abuts against the limiting frame, and the upper hot plate contacts the contact sensor.

[0017] In an embodiment, a plurality of hollow holes are formed in the middle part of the connecting rod.

[0018] In an embodiment, the rotation range of the upper hot plate around the second rotation axis is 0-105 degrees.

[0019] In an embodiment, the lower hot plate assembly comprises a lower hot plate and a second driving mechanism for driving the lower hot plate to be attached to the bottom side of the mold so that the lower hot plate heats the mold.

[0020] In an embodiment, the second driving mechanism comprises a lifting driving device fixedly connected with the rack; the driving end of the lifting driving device is fixedly connected with the lower hot plate.

[0021] In an embodiment, the second driving mechanism comprises at least two lifting driving devices symmetrically arranged on the opposite sides of the bottom of the lower hot plate.

[0022] In an embodiment, the second driving mechanism comprises a vertically arranged guide rod fixedly connected with the rack; the lower hot plate is provided with a guide hole for the guide rod to pass through, and the guide rod is in sliding connection with the guide hole.

[0023] To achieve the above-mentioned purpose, the utility model provides a mold opening device, the mold opening device includes the mold heat preservation structure of any one of the above.

[0024] The technical scheme of the utility model sets the mold heat preservation structure in the mold opening device, wherein the mold heat preservation structure comprises an upper hot plate assembly and a lower hot plate assembly; during operation, the mold is moved from the rubber injection machine to the rack at the material taking station for carrying, and the second mold plate is supported by the lower hot plate assembly; then the operation personnel first turn over and separate the first mold plate, and support the separated first mold plate on the upper hot plate assembly; at this time, the mold cavity area of the second mold plate is exposed, so that the operation personnel can take out the rubber product in the mold cavity area of the second mold plate; after the rubber product is taken, the first mold plate is reset, then the upper hot plate assembly is rotated to be connected with the mold, and then the mold is heated and preserved by the combined action of the upper hot plate assembly and the lower hot plate assembly, so that the temperature loss of the subsequent mold during pressure vulcanization processing is avoided, and the quality stability of the subsequent rubber product is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0026] Figure 1 The whole structure schematic diagram of one embodiment of the mold heat preservation structure provided by the utility model is shown in the figure.

[0027] Figure 2 The structure schematic diagram of one embodiment of the mold heat preservation structure provided by the utility model is shown in the figure (the upper hot plate is at the first position).

[0028] Figure 3 The structure schematic diagram of one embodiment of the mold heat preservation structure provided by the utility model is shown in the figure (the upper hot plate is at the second position).

[0029] Figure 4 The structure schematic diagram of one embodiment of the mold heat preservation structure provided by the utility model is shown in the figure. Figure 3 The local enlarged view of A in the figure.

[0030] Figure 5 The structure schematic diagram of the lower hot plate assembly in one embodiment of the mold heat preservation structure provided by the utility model is shown in the figure.

[0031] Figure 6 The local enlarged view of B in the figure. Figure 5 The figure mark explanation is as follows:

[0032] 100, rack; 200, upper hot plate assembly; 210, upper hot plate; 211, second rotating shaft; 220, first driving mechanism; 230, telescopic driving device; 240, connecting rod; 241, first rotating shaft; 242, hollow hole; 250, linear sliding mechanism; 251, sliding block; 252, slide rail; 253, first limiting block; 254, second limiting block; 260, limiting frame; 261, contact type sensor; 300, lower hot plate assembly; 310, lower hot plate; 311, guide hole; 320, second driving mechanism; 330, lifting driving device; 340, guide rod.

[0033] The realization, functional features and advantages of the utility model will be further described by combining with the embodiments and referring to the drawings.

[0034] Specific implementation

[0035] The technical solutions in the utility model will be described clearly and completely by combining with the drawings in the utility model. Obviously, the described is only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0036] ​It should be noted that if the embodiment of the utility model has directionality indication (such as up, down, left, right, front, back, etc.), the directionality indication is only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), if the specific posture changes, the directionality indication also changes accordingly.

[0037] In addition, it should be noted that the description of "first", "second" and the like in the utility model is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0038] In the prior art, when one mold finishes taking materials and waits for another mold to pressurize vulcanization, since the one mold is in normal temperature environment at this time, the normal temperature value is lower than the mold temperature required during pressurized vulcanization, so that the one mold occurs temperature loss during subsequent pressurized vulcanization processing, and the quality of the rubber product is unstable.

[0039] In order to solve the above technical problems, the utility model provides a mold heat preservation structure, which is applied to a mold opening device, the mold opening device includes a rack 100 for bearing a mold (not shown in the drawing), wherein the mold includes a first mold plate and a second mold plate which can be separated from each other;

[0040] Please refer to Figure 1 In an embodiment of the utility model, the mold heat preservation structure includes:

[0041] The upper hot plate assembly 200 is rotatably arranged on one side of the rack 100; the upper hot plate assembly 200 is used for heating and heat preservation of the mold, and the upper hot plate assembly can support the first mold plate after separation;

[0042] The lower hot plate assembly 300 is arranged on the rack 100; the lower hot plate assembly 300 is used for heating and heat preservation of the mold, and the lower hot plate assembly can support the second mold plate.

[0043] The utility model discloses a technical scheme through setting up mould heat preservation structure in mould opening device, wherein the mould heat preservation structure includes upper hot plate subassembly 200 and lower hot plate subassembly 300, when operating, the mould is removed from rubber injection machine to the rack 100 located in the material taking station and is supported by the second template using lower hot plate subassembly 300, then the operating personnel first overturns and separates the first template, and the separated first template is erected and supported on the upper hot plate subassembly 100, at this time, the cavity area of the second template is exposed, so that the operating personnel can take out the rubber product located in the cavity area of the second template, after the rubber product is finished taking, the first template is reset, then the upper hot plate subassembly 200 is rotated to be connected with the mould, and then the mould is heated and preserved through the combination of the upper hot plate subassembly 200 and lower hot plate subassembly 300, so that the temperature loss of the subsequent mould during pressure vulcanization processing is avoided, and the quality stability of the subsequent rubber product is ensured.

[0044] Among them, about the overturning separation operation of the first template, manual mode or mechanical auxiliary mode can be adopted, and the present application does not make specific limitation.

[0045] As a preferred scheme of the above embodiment, refer to the accompanying Figures 2-3 The upper hot plate subassembly 200 includes an upper hot plate 210 and a first driving mechanism 220, and the first driving mechanism 220 is used to drive the upper hot plate 210 to rotate and be mutually attached to the top side of the mould, so that the upper hot plate 210 can heat and warm the mould. By moving the upper hot plate 210 to be mutually attached to the top side of the mould through the first driving mechanism 220, the upper hot plate 210 can heat and warm the mould, wherein the inside of the upper hot plate 210 is provided with a heating device, such as a heating wire, etc., and the upper hot plate 210 is warmed through the heating device, and then the mould mutually attached to the upper hot plate 210 is also warmed, so as to ensure the smooth implementation of the technical scheme, and the structure is simple and practical.

[0046] Among them, the specific structure of the above-mentioned first driving mechanism 220 has many kinds, in the embodiment, refer to the accompanying Figures 2-3 The first driving mechanism 220 includes a telescopic driving device 230 and a connecting rod 240, and the telescopic driving device 230 is fixedly connected with the rack 100. The first end of the connecting rod 240 is movably connected with the upper hot plate 210, the second end of the connecting rod 240 is movably connected with the driving end of the telescopic driving device 230, the middle part of the connecting rod 240 is rotatably connected with the rack 100 through a first rotating shaft 241, and the side part of the upper hot plate 210 is rotatably connected with the rack 100 through a second rotating shaft 211. Under the driving action of the telescopic driving device 230, the connecting rod 240 rotates around the first rotating shaft 241 to drive the upper hot plate 210 to rotate around the second rotating shaft 211 to a first position (as shown in the accompanying Figure 2 ​Figure 3 The upper hot plate 210 is in mutual abutment with the top side of the mold when the upper hot plate 210 is rotated to the first position, and the upper hot plate 210 is out of mutual abutment with the top side of the mold when the upper hot plate 210 is rotated to the second position. In this way, the telescopic driving device 230 is used as a power source to drive the second end of the connecting rod 240 to displace, so that the connecting rod 240 rotates around the first rotation axis 241 to displace the first end of the connecting rod 240, and then the upper hot plate 210 rotates around the second rotation axis 211. When the upper hot plate 210 is rotated to the first position, the upper hot plate 210 is in mutual abutment with the top side of the mold, so that the upper hot plate 210 can heat the top side of the mold to a high temperature, thereby ensuring that the technical scheme of the present application can be effectively implemented. The telescopic driving device 230 can be a telescopic oil cylinder, and the present application does not make a specific limitation.

[0047] Further, the connecting part of the connecting rod 240 and the upper hot plate 210 is provided with a linear sliding mechanism 250. In this way, referring to FIG. 2, Figures 2-3 When the upper hot plate 210 rotates around the second rotation axis 211, the connecting part between the first end of the connecting rod 240 and the upper hot plate 210 also displaces. In order to ensure that the upper hot plate 210 can smoothly rotate around the second rotation axis 211 without being hindered by the connecting rod 240, the linear sliding mechanism 250 is arranged at the connecting part of the connecting rod 240 and the upper hot plate 210.

[0048] Specifically, referring to FIG. 2, Figure 4 The linear sliding mechanism 250 includes a sliding block 251 and a sliding rail 252 that are in sliding connection with each other, wherein the sliding block 251 is rotationally connected with the first end of the connecting rod 240, and the sliding rail 252 is fixedly connected with the upper hot plate 210. In this way, the sliding connection between the sliding block 251 and the sliding rail 252 ensures that the connecting part between the first end of the connecting rod 240 and the upper hot plate 210 can displace along the sliding rail 252 when the upper hot plate 210 rotates around the second rotation axis 211, thereby ensuring that the technical scheme of the present application can be effectively implemented.

[0049] Further, the opposite ends of the sliding rail 252 are respectively provided with a first limiting block 253 and a second limiting block 254, which are used to abut against the sliding block 251. In this way, the limiting action of the first limiting block 253 and the second limiting block 254 ensures that the sliding block 251 cannot displace excessively and be separated from the sliding rail 252. Since the sliding limit position of the sliding block 251 can only abut against the first limiting block 253 or the second limiting block 254, the positions of the first limiting block 253 and the second limiting block 254 on the sliding rail 252 can be adjusted to control the rotation range of the upper hot plate 210 around the second rotation axis 211.

[0050] Further, the first driving mechanism 220 comprises a limiting frame 260, the limiting frame 260 is provided with a contact sensor 261, the contact sensor 261 is electrically connected with the telescopic driving device 230; when the upper hot plate 210 rotates to the second position, the upper hot plate 210 and the limiting frame 260 abut each other, and the upper hot plate 210 and the contact sensor 261 abut each other. By setting the limiting frame 260 at the second position of the upper hot plate 210, when the upper hot plate 210 rotates to abut the limiting frame 260, it means that the upper hot plate 210 has rotated to the second position, and the abutting effect of the limiting frame limits the continuous rotation of the upper hot plate 210. At the same time, the contact sensor 261 is arranged on the limiting frame 260, and when the upper hot plate 210 and the contact sensor 261 abut each other, the contact sensor 261 sends an electric signal to the telescopic driving device 230 to stop the operation of the telescopic driving device 230, thereby stopping the continuous rotation of the upper hot plate 210.

[0051] Further, the middle part of the connecting rod 240 is provided with a plurality of hollow holes 242; by setting the hollow holes 242, the overall weight of the connecting rod 240 is reduced, so that the telescopic driving device 230 can drive the connecting rod 240 to rotate with smaller driving power, which helps to save energy and labor.

[0052] Further, the rotation range θ of the upper hot plate 210 around the second rotation shaft 211 is 0°-105°. By limiting the rotation range θ of the upper hot plate 210, it is ensured that the upper hot plate 210 can be smoothly matched with the mold when it is in the first position, and when the upper hot plate 210 is in the second position, the included angle between the upper hot plate 210 and the mold is obtuse, so that the upper hot plate 210 can smoothly support the separated first mold to avoid the first mold from rotating and falling to match with the second mold under its own gravity.

[0053] As a preferred scheme of the above embodiment, reference is made to the accompanying drawings Figures 5-6 The lower hot plate assembly 300 comprises a lower hot plate 310 and a second driving mechanism 320, the second driving mechanism 320 is used to drive the lower hot plate 310 to match with the bottom side of the mold, so that the lower hot plate 310 can heat and warm the mold. By moving the lower hot plate 310 to match with the bottom side of the mold through the second driving mechanism 320, the lower hot plate 310 can heat and warm the mold, and the inside of the lower hot plate 310 is provided with a heating device, such as a heating wire, which can warm the lower hot plate 310, and the mold matched with the lower hot plate 310 is also warmed, so as to ensure the smooth implementation of the technical scheme, and the structure is simple and practical.

[0054] The specific structure of the second driving mechanism 320 has many kinds, and in the embodiment, the specific structure of the second driving mechanism 320 is described with reference to the accompanying drawings. Figure 6 The second driving mechanism 320 comprises a lifting driving device 330 fixedly connected with the rack 100; the driving end of the lifting driving device 330 is fixedly connected with the lower hot plate 310; the lower hot plate 310 is vertically lifted under the driving action of the lifting driving device 330; in this way, the lifting driving device 330 is used as a power source to drive the lower hot plate 310 to move upward to be in close contact with the bottom side of the mold, so that the lower hot plate 310 can heat the bottom side of the mold to ensure that the technical scheme of the application can be effectively implemented. The lifting driving device 330 can be a lifting oil cylinder, and the application does not make a specific limitation.

[0055] Further, the second driving mechanism 320 comprises at least two lifting driving devices 330 symmetrically arranged on the opposite sides of the bottom of the lower hot plate 310; in this way, the left and right forces of the lower hot plate 310 are balanced when the lower hot plate 310 is lifted, which is beneficial to improve the stability of the lower hot plate 310 when the lower hot plate 310 is lifted. In the embodiment, the number of the lifting driving devices 330 is two.

[0056] Further, the second driving mechanism 320 comprises a vertically arranged guide rod 340 fixedly connected with the rack 100; the lower hot plate 310 is provided with a guide hole 311 for the guide rod 340 to penetrate, and the guide rod 340 is in up-down sliding connection with the guide hole 311. In this way, the guide rod 340 and the guide hole 311 are used for guiding, so as to limit the movement freedom of the lower hot plate 310, and ensure that the lower hot plate 310 can only be lifted in the vertical direction under the driving action of the lifting driving device 330.

[0057] The embodiment also discloses a mold opening device comprising the mold heat preservation structure of any one of the above embodiments. The specific structure of the mold heat preservation structure can be referred to the above embodiments. Since the rubber processing equipment adopts all the technical schemes of the above embodiments, it at least has all the beneficial effects brought by the technical schemes of the above embodiments, which will not be described here.

[0058] It should be noted that the other contents of the mold heat preservation structure and the mold opening device disclosed in the utility model are prior art, which will not be described here.

[0059] The above is only an optional embodiment of the utility model, and does not limit the patent range of the utility model, and any direct / indirect application of the utility model in other related technical fields is included in the patent protection range of the utility model.

Claims

1. A mold insulation structure applied to a mold opening device, the mold opening device comprising a frame for supporting the mold, wherein the mold comprises a first template and a second template that are separable from each other; characterized in that, The mold insulation structure includes: The upper heating plate assembly is rotatably mounted on one side of the frame; the upper heating plate assembly is used to heat and keep the mold warm, and the upper heating plate assembly can support the separated first template. A lower heating plate assembly is mounted on the frame; the lower heating plate assembly is used to heat and keep the mold warm, and the lower heating plate assembly can support the second template.

2. The mold insulation structure as described in claim 1, characterized in that: The upper heating plate assembly includes an upper heating plate and a first driving mechanism. The first driving mechanism is used to drive the upper heating plate to rotate so that it is in contact with the top side of the mold, so that the upper heating plate heats the mold.

3. The mold insulation structure as described in claim 2, characterized in that: The first driving mechanism includes a telescopic driving device and a connecting rod. The telescopic driving device is fixedly connected to the frame. The first end of the connecting rod is movably connected to the upper heating plate, and the second end of the connecting rod is movably connected to the driving end of the telescopic driving device. The middle part of the connecting rod is rotatably connected to the frame through a first rotating shaft. The side part of the upper heating plate is rotatably connected to the frame through a second rotating shaft. Under the driving action of the telescopic drive device, the connecting rod rotates around the first rotating axis to drive the upper heating plate to rotate around the second rotating axis to a first position or a second position; when the upper heating plate rotates to the first position, the upper heating plate is in contact with the top side of the mold; when the upper heating plate rotates to the second position, the upper heating plate is released from contact with the top side of the mold.

4. The mold insulation structure as described in claim 3, characterized in that: A linear sliding mechanism is provided at the connection between the connecting rod and the upper heating plate. The linear sliding mechanism includes a slider and a slide rail that are slidably connected to each other. The slider is rotatably connected to the first end of the connecting rod, and the slide rail is fixedly connected to the upper heating plate.

5. The mold insulation structure as described in claim 4, characterized in that: The slide rail has a first limiting block and a second limiting block at opposite ends of its track direction, and the first limiting block and the second limiting block are used to abut against the slider.

6. The mold insulation structure as described in claim 3, characterized in that: The first driving mechanism includes a limiting frame, and the limiting frame is equipped with a contact sensor, which is electrically connected to the telescopic driving device; when the upper heating plate rotates to the second position, the upper heating plate abuts against the limiting frame, and the upper heating plate contacts the contact sensor.

7. The mold insulation structure as described in claim 3, characterized in that: The connecting rod has several hollow holes in its middle section; and the upper heating plate rotates around the second rotating axis at a range of 0° to 105°.

8. The mold insulation structure as described in claim 1, characterized in that: The lower heating plate assembly includes a lower heating plate and a second driving mechanism. The second driving mechanism is used to drive the lower heating plate to move to fit against the bottom side of the mold, so that the lower heating plate heats the mold.

9. The mold insulation structure as described in claim 8, characterized in that: The second drive mechanism includes a lifting drive device, which is fixedly connected to the frame; the drive end of the lifting drive device is fixedly connected to the lower heating plate. Furthermore, the second drive mechanism includes at least two of the aforementioned lifting drive devices, which are symmetrically arranged on opposite sides of the bottom of the lower heating plate. Furthermore, the second drive mechanism includes a vertically arranged guide rod, which is fixedly connected to the frame; the lower heating plate is provided with a guide hole for the guide rod to pass through, and the guide rod is slidably connected to the guide hole.

10. A mold opening device, characterized in that: The mold opening device includes the mold insulation structure as described in any one of claims 1 to 9.

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