Hot press with novel heating mechanism

Abstract

The utility model discloses a hot press with a novel heating mechanism, which comprises a rack, the surface of the rack is rotatably connected with a rotating frame, the bottom of the rack is provided with a driving mechanism for driving the rotating frame to rotate, and a plurality of lower dies are distributed at the bottom of the rotating frame in a circumferential array mode. A plurality of upper dies are arranged at the positions, corresponding to the lower dies, of the top of the rotating frame, and the die-casting machine is characterized in that flow guide channels are arranged in the upper dies and the lower dies, and the machine frame is fixedly connected with a flow dividing mechanism which is connected with the two ends of the flow guide channels through pipelines. According to the utility model, the flow guide channel is arranged in the mold, the flow dividing mechanism is connected with a heat source for heating, and heat-conducting oil or steam is introduced for heating, so that the heating temperature is more accurate, an electric heating tube is omitted, maintenance is not needed, and the maintenance cost is reduced; heat conduction oil can be provided through a high-power mold temperature controller, energy consumption is low, residual heat energy in production of an industrial boiler is adopted as steam, and energy conservation and environment protection are achieved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of hot presses for pulp molding, and in particular to a hot press with a novel heating mechanism. Background Art

[0002] During the production process of pulp molded products, it is necessary to use a hot press to remove moisture from the wet embryo through hot pressing to shape it. Currently, the hot press heats the mold by embedding electric heating wires inside the upper and lower molds. This heating method has the following problems: heating with electric heating tubes results in uneven and unstable heating temperatures, with the mold surface temperature generally around 110°C; heating with electric heating tubes is easily damaged and requires high maintenance frequency; heating with electric heating tubes requires installing electric heating tubes inside the mold and passing a 220V voltage, which poses a risk of leakage during use. Utility Model Content

[0003] The present disclosure provides a heat press with a novel heating mechanism to solve one of the technical problems recognized by the inventors.

[0004] The present disclosure provides a hot press with a novel heating mechanism, comprising a frame, a rotating frame being rotatably connected to the surface of the frame, a driving mechanism for driving the rotating frame to rotate being provided at the bottom of the frame, a plurality of lower molds being distributed in a circular array at the bottom of the rotating frame, a plurality of upper molds being provided at positions corresponding to the lower molds at the top of the rotating frame, and characterized in that flow guides are provided inside the upper and lower molds, a diversion mechanism is fixedly connected to the frame, and the diversion mechanism is connected to both ends of the flow guide through a pipeline.

[0005] Preferably, the diversion mechanism includes an oil inlet pipe, an oil return pipe, an oil inlet diversion pipe and an oil return diversion pipe, the oil inlet pipe is connected to the oil inlet diversion pipe, the oil return pipe is connected to the return oil diversion pipe, the oil inlet diversion pipe is connected to a plurality of oil inlet diversion connecting pipes, the oil inlet diversion connecting pipe is connected to the input end of the guide channel through a pipeline, the return oil diversion pipe is connected to a plurality of return oil diversion connecting pipes, and the return oil diversion connecting pipe is connected to the output end of the guide channel through a pipeline.

[0006] Preferably, the number of the upper molds and lower molds is equal, the number of the oil inlet diversion connecting pipes and the return oil diversion connecting pipes is equal to the number of the upper molds and lower molds, each of the oil inlet diversion connecting pipes is connected to an oil inlet tee through a pipeline, and the two output ends of the oil inlet tee are respectively connected to the input ends of a group of guide channels of the upper mold and the lower mold through pipelines, and each of the return oil diversion connecting pipes is connected to an oil return tee joint through a pipeline, and the two output ends of the return oil tee joint are respectively connected to the output ends of a group of guide channels of the upper mold and the lower mold through pipelines.

[0007] Preferably, an oil inlet angle seat valve is provided on the oil inlet diversion connecting pipe, and an oil return angle seat valve is provided on the oil return diversion connecting pipe.

[0008] Preferably, the oil inlet pipe, oil return pipe and the oil inlet diversion pipe, oil return diversion pipe are connected through a two-channel rotary joint, and the bottom of the oil inlet diversion pipe and the oil return diversion pipe are fixedly connected to a support seat, which is fixedly connected to the rotating frame.

[0009] Preferably, temperature sensors are embedded in the sides of the upper mold and the lower mold.

[0010] Preferably, a cable bracket is provided on one side of the rack, and the top end of the cable bracket extends to above the middle of the rack.

[0011] Preferably, a control box is provided on one side of the rack.

[0012] Preferably, the frame is provided with a plurality of displacement sensors, and an industrial camera is provided on the side of the frame.

[0013] The beneficial effects of the present disclosure are mainly as follows: the present invention sets a flow guide channel inside the mold, connects to a heat source through a diversion mechanism for heating, introduces heat transfer oil or steam for heating, and the heating temperature is more accurate, and eliminates the setting of electric heating pipes, requiring no maintenance, and reducing maintenance costs; the heat transfer oil can be provided by a high-power mold temperature controller with low energy consumption, and the steam uses the remaining heat energy of industrial boilers in production, which is energy-saving and environmentally friendly.

[0014] It should be understood that both the foregoing general description and the following detailed description are for purposes of illustration and description and are not necessarily limiting of the present disclosure. The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate the subject matter of the present disclosure. Together, the description and the drawings serve to explain the principles of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a hot press according to an embodiment of the present disclosure;

[0017] Figure 2 This is a schematic structural diagram of the diversion mechanism according to an embodiment of the present disclosure;

[0018] Figure 3 A schematic diagram of the connection relationship between the diversion mechanism and the mold according to an embodiment of the present disclosure;

[0019] Icons: 1-frame; 2-rotating frame; 3-lower mold; 4-upper mold; 5-diverter mechanism; 51-oil inlet pipe; 52-oil return pipe; 53-oil inlet diverter pipe; 54-oil return diverter pipe; 55-oil inlet diverter connecting pipe; 56-oil return diverter connecting pipe; 57-oil inlet angle seat valve; 58-oil return angle seat valve; 59-two-channel rotary joint; 510-support seat; 511-oil inlet tee; 512-oil return tee; 6-temperature sensor; 7-cable bracket; 8-control box; 9-displacement sensor; 10-industrial camera. DETAILED DESCRIPTION

[0020] The technical solutions of the present disclosure will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0021] Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present disclosure.

[0022] In the description of this disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this disclosure and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this disclosure, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on the specific circumstances.

[0024] Example

[0025] like Figure 1-3As shown, this embodiment provides a hot press with a new heating mechanism, a frame 1, the surface of the frame 1 is rotatably connected to a rotating frame, and the bottom of the frame 1 is provided with a driving mechanism for driving the rotating frame to rotate. In this embodiment, the driving mechanism is a motor-driven reducer, which drives the rotating frame to rotate. In the prior art, the rotation of the rotating frame is driven by a motor, a reducer and other structures. It is a conventional structure of a hot press, and its specific structure and principle are not described in detail here; the bottom of the rotating frame 2 is provided with a plurality of lower molds 3 distributed in a circular array, and the top of the rotating frame 2 is provided with a plurality of upper molds 4 at positions corresponding to the lower molds 3. In this embodiment, the upper mold 4 can be driven up and down by a cylinder to achieve combination or separation with the lower mold 3. A flow guide is provided inside the upper mold 4 and the lower mold 3 (not shown in the figure), and the frame 1 is fixedly connected with a diversion mechanism 5, and the diversion mechanism 5 is connected to the two ends of the flow guide through a pipeline.

[0026] Specifically, the diversion mechanism 5 includes an oil inlet pipe 51, an oil return pipe 52, an oil inlet diversion pipe 53 and an oil return diversion pipe 54. The oil inlet pipe 51 is connected to the oil inlet diversion pipe 53, and the oil return pipe 52 is connected to the return oil diversion pipe 54. The oil inlet diversion pipe 53 is connected to multiple oil inlet diversion connecting pipes 55, and the oil inlet diversion connecting pipe 55 is connected to the input end of the guide channel through a pipeline. The return oil diversion pipe 54 is connected to multiple return oil diversion connecting pipes 56, and the return oil diversion connecting pipe 56 is connected to the output end of the guide channel through a pipeline. The input end of the oil inlet pipe 51 is connected to the mold temperature controller in the workshop or to the industrial boiler through a pipeline, and heat transfer oil is provided by the mold temperature controller or high-temperature steam is provided by the industrial boiler. Similarly, the return oil pipe 52 is connected to the mold temperature controller in the workshop or to the industrial boiler through a pipeline, and the heat transfer oil or high-temperature steam introduced into the upper mold 4 or the lower mold 3 is discharged back to the mold temperature controller or the industrial boiler to form a circulation.

[0027] In this embodiment, the number of upper molds 4 and lower molds 3 is equal, and the number of upper molds 4 and lower molds 3 is 10. The number of the oil inlet diversion connecting pipes 55 and the return oil diversion connecting pipes 56 is equal to the number of the upper molds 4 and lower molds 3. Each of the oil inlet diversion connecting pipes 55 is connected to the oil inlet tee 511 through a pipeline. The upper mold 4 and the lower mold 3 on the same straight line are set as a group of molds. The two output ends of the oil inlet tee 511 are respectively connected to the input ends of the guide channels of a group of upper molds 4 and lower molds 3 through pipelines. Each of the return oil diversion connecting pipes 56 is connected to the return oil tee 512 joint through a pipeline. The two output ends of the return oil tee 512 are respectively connected to the output ends of the guide channels of a group of upper molds 4 and lower molds 3 through pipelines.

[0028] Furthermore, the oil inlet pipe 51, the oil return pipe 52, the oil inlet diverter pipe 53, and the oil return diverter pipe 54 are connected via a two-channel rotary joint 59. Furthermore, a support base 510 is fixedly connected to the bottom of the oil inlet diverter pipe 53 and the oil return diverter pipe 54, and the support base 510 is fixedly connected to the rotating frame 2. The two-channel rotary joint 59 allows the oil inlet pipe 51 and the oil return pipe 52 to be fixedly mounted on the frame 1, while the upper oil inlet diverter pipe 53 and the oil return diverter pipe 54 are fixedly connected to the rotating frame 2, allowing them to rotate with the rotating frame 2, thereby preventing the pipes from becoming entangled when the mold rotates.

[0029] Furthermore, an oil inlet angle seat valve 57 is provided on the oil inlet diversion connecting pipe 55, and an oil return angle seat valve 58 is provided on the oil return diversion connecting pipe 56. The oil return angle seat valve 58 and the oil inlet angle seat valve 57 are used to independently control the oil inlet and oil return of a group of upper molds 4 and lower molds 3.

[0030] Furthermore, temperature sensors 6 are embedded in the sides of the upper mold 4 and the lower mold 3. The temperature of the upper mold 4 and the lower mold 3 is detected by the temperature sensor 6. When the specified temperature is reached, the oil inlet angle seat valve 57 can be closed to stop the oil inlet, thereby controlling the temperature.

[0031] A cable bracket 7 is provided on one side of the frame 1, with the top end of the cable bracket 7 extending to the upper portion of the middle portion of the frame 1. The cable bracket 7 is hollow and has openings on the side for cables to pass through. The cables of various electrical devices in the hot press are uniformly arranged through the cable bracket 7, making the internal wiring more neat and easy to maintain.

[0032] Furthermore, a control box 8 is provided on one side of the frame 1. The control box 8 is a PLC control box 8, which is used to control the overall operation of the hot press.

[0033] Furthermore, the frame 1 is provided with a plurality of displacement sensors 9, and an industrial camera 10 is provided on the side of the frame 1. The displacement sensors 9 detect the position of the mold movement. After the mold moves to the designated position, the hot pressing operation is performed. The industrial camera 10 is set at the discharge end and detects that the product is in place and is removed by an external robot.

[0034] The working principle of the present invention: Based on the traditional hot press, the present application changes the heating method of the heating tube in the mold to heat transfer oil or steam heating; first, the oil inlet pipe 51 and the oil return pipe 52 are connected to the mold temperature controller or industrial boiler in the workshop to form a circulation; the following uses heat transfer oil as an example, the heat transfer oil passes through the oil inlet pipe 51, flows through the oil inlet diverter pipe 53, and after being diverted by the oil inlet diverter pipe 53, it flows out from each oil inlet diverter connecting pipe 55, continues to be diverted to the upper mold 4 and the lower mold 3 through the oil inlet tee 511, enters the upper mold 4 and the lower mold 3 from the input end of the guide channel, flows out from the output end of the guide channel after passing through the guide channel, and then converges through the oil return tee 512 into the return oil diverter connecting pipe 56, passes through the return oil diverter pipe 54, and returns to the mold temperature controller from the return oil pipe 52. In the process of the heat transfer oil entering the guide channel, the temperature of the heat transfer oil is transferred to the upper mold 4 and the lower mold 3, heating them. The same is true for steam, which will not be described in detail here.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A hot press with a novel heating mechanism, comprising: The frame has a rotating frame connected to the surface thereof in rotation, a driving mechanism for driving the rotating frame to rotate is provided at the bottom of the frame, a plurality of lower molds are distributed in a circular array at the bottom of the rotating frame, and a plurality of upper molds are provided at positions corresponding to the lower molds on the top of the rotating frame. It is characterized in that flow guides are provided inside the upper and lower molds, and a diversion mechanism is fixedly connected to the frame, and the diversion mechanism is connected to both ends of the flow guide through a pipe.

2. A hot press with a novel heating mechanism according to claim 1, characterized in that: The diversion mechanism includes an oil inlet pipe, an oil return pipe, an oil inlet diversion pipe and an oil return diversion pipe. The oil inlet pipe is connected to the oil inlet diversion pipe, the oil return pipe is connected to the return oil diversion pipe, the oil inlet diversion pipe is connected to a plurality of oil inlet diversion connecting pipes, the oil inlet diversion connecting pipe is connected to the input end of the guide channel through a pipeline, the return oil diversion pipe is connected to a plurality of return oil diversion connecting pipes, and the return oil diversion connecting pipe is connected to the output end of the guide channel through a pipeline.

3. A hot press with a novel heating mechanism according to claim 2, characterized in that: The number of the upper and lower molds is equal, and the number of the oil inlet diversion connecting pipes and the return oil diversion connecting pipes is equal to the number of the upper and lower molds. Each of the oil inlet diversion connecting pipes is connected to an oil inlet tee through a pipeline, and the two output ends of the oil inlet tee are respectively connected to the input ends of a group of guide channels of the upper and lower molds through pipelines. Each of the return oil diversion connecting pipes is connected to an oil return tee joint through a pipeline, and the two output ends of the return oil tee joint are respectively connected to the output ends of a group of guide channels of the upper and lower molds through pipelines.

4. A hot press with a novel heating mechanism according to claim 3, characterized in that: The oil inlet diversion connecting pipe is provided with an oil inlet angle seat valve, and the oil return diversion connecting pipe is provided with an oil return angle seat valve.

5. A hot press with a novel heating mechanism according to claim 4, characterized in that: The oil inlet pipe, the oil return pipe and the oil inlet diversion pipe and the oil return diversion pipe are connected through a two-channel rotary joint. The bottom of the oil inlet diversion pipe and the oil return diversion pipe is fixedly connected to a support seat, and the support seat is fixedly connected to the rotating frame.

6. A hot press with a novel heating mechanism according to claim 1, characterized in that: Temperature sensors are embedded in the sides of the upper mold and the lower mold.

7. A hot press with a novel heating mechanism according to claim 1, characterized in that: A cable bracket is provided on one side of the rack, and the top end of the cable bracket extends to the upper part of the middle portion of the rack.

8. A hot press with a novel heating mechanism according to claim 1, characterized in that: A control box is provided on one side of the frame.

9. A hot press with a novel heating mechanism according to claim 1, characterized in that: The frame is provided with a plurality of displacement sensors, and an industrial camera is provided on the side of the frame.

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