Drum apparatus for hot press shaping

Abstract

The application discloses a drum device for hot pressing shaping, which is installed below an upper die of a hot press, and comprises a drum machine rotating around an axis extending in the left-right direction, a plurality of lower dies and a driving device installed at one end of the drum machine. The drum machine comprises a plurality of mounting stations arranged in sequence in the circumferential direction of the axis, each mounting station being provided with a heating base plate, a heating device and an air pipe. The heating device is installed in the corresponding heating base plate, the outer surface of each heating base plate is provided with a plurality of air vents, and each air pipe is in fluid communication with an external air source and the plurality of air vents of the corresponding heating base plate. Each lower die is detachably installed on the corresponding heating base plate. The driving device drives the drum machine to rotate around the axis. The application can simultaneously realize material taking, hot pressing shaping and material placing, thereby saving time and improving production efficiency.

Description

Technical Field

[0001] This application relates to the field of pulp molding hot pressing equipment technology, and in particular to a drum device for hot pressing shaping. Background Technology

[0002] In the traditional hot pressing forming process, the upper mold and the lower mold are set up opposite each other. The upper mold descends and presses against the lower mold to hot press and shape the product between them. The product needs to be placed into the lower mold one by one manually. After hot pressing and shaping, the mold is removed. Material removal, hot pressing and shaping and material unloading need to be carried out in steps, which is inefficient and there is a risk of burns to the operators. Summary of the Invention

[0003] In order to solve the above-mentioned technical problems, the purpose of this application is to provide a rotary drum device for hot pressing and shaping.

[0004] To achieve the above objectives, this application adopts the following technical solution: a rotary drum device for hot pressing and shaping, installed below the upper mold of a hot press, the rotary drum device comprising:

[0005] A drum machine rotates around a central axis extending in a left-right direction. The drum machine includes multiple installation stations arranged circumferentially along the central axis. Each installation station is equipped with a heating base plate, a heating device, and an air pipe. The heating device is installed in the corresponding heating base plate. One end of each air pipe is connected to an external air source, and the other end is in fluid communication with the corresponding heating base plate. The heating base plate has a gas channel in fluid communication with the air pipe, and the gas channel forms multiple air vents on the outer surface of the heating base plate.

[0006] Multiple lower molds, each lower mold having a cavity that mates with the upper mold, one lower mold installed at each installation station, each lower mold detachably mounted on a corresponding heating base plate, each lower mold having multiple air holes communicating with the cavity, the multiple air holes communicating with multiple air vents on the corresponding heating base plate; and

[0007] A drive unit is installed at one end of the drum machine. The drive unit includes a reducer and a servo motor. The reducer is connected between the drum machine and the servo motor. The servo motor is used to drive the drum machine to rotate around the axis.

[0008] In the above technical solution, a further preferred embodiment is that the drum machine further includes a left shaft head and a right shaft head arranged opposite to each other, and a mounting frame connected between the left shaft head and the right shaft head. The left shaft head, the right shaft head and the mounting frame are arranged coaxially. A plurality of heating base plates are mounted on the outer surface of the mounting frame. The cross-section of the mounting frame is an equilateral polygon.

[0009] In the above technical solution, a further preferred embodiment is that the drum machine further includes an electric slip ring and a rotary joint, the electric slip ring and the rotary joint are coaxially mounted on the left shaft head, the drive device is mounted on the right shaft head, the electric slip ring is electrically connected to a power source, and the rotary joint is connected to an external air source.

[0010] In the above technical solution, a further preferred embodiment is that the left shaft head is provided with an air supply passage, the air supply passage includes a main air supply line and a plurality of air supply branches distributed circumferentially along the main air supply line; the main air supply line extends in the left-right direction and is connected to the rotary joint, the air supply branches all extend radially along the main air supply line, and one end of each air supply branch is connected to the main air supply line, and the other end is connected to an air pipe.

[0011] In the above technical solution, a further preferred embodiment is that the electric slip ring is connected to each of the heating devices by wires, and the left shaft head has multiple through holes for the wires to pass through, and the multiple through holes are arranged to avoid the gas supply passage.

[0012] In the above technical solution, a further preferred embodiment includes a pair of bearing seats arranged opposite each other, with the left shaft head and the right shaft head respectively supported on the pair of bearing seats, and at least one bearing installed in each of the bearing seats, with the left shaft head and the right shaft head passing through the corresponding bearing.

[0013] In the above technical solution, it is further preferred that each of the heating devices includes a plurality of electric heating rods, and the heating base plate has a plurality of mounting holes. The plurality of electric heating rods are respectively inserted into the plurality of mounting holes of the corresponding heating base plate, and the plurality of mounting holes are arranged to avoid the gas channel.

[0014] In the above technical solution, it is further preferred that each of the heating devices further includes a thermocouple and a temperature control module, wherein the thermocouple and the corresponding plurality of electric heating rods are electrically connected to the temperature control module.

[0015] In the above technical solution, a further preferred embodiment is that the drum machine is a six-sided drum machine, which includes six installation stations.

[0016] Compared with the prior art, this application achieves the following beneficial effects:

[0017] This application enables automatic hot pressing and shaping and material feeding, and the multiple installation stations on the drum machine rotate in a cycle, allowing material picking, hot pressing and shaping and material feeding to be carried out simultaneously, effectively saving time and improving production efficiency. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of a partially split drum device for hot pressing and shaping, provided as an embodiment of this application;

[0019] Figure 2 for Figure 1 Front view of the drum device in the middle;

[0020] Figure 3 For along Figure 2 A sectional view cut along line AA in the diagram;

[0021] Figure 4 for Figure 1 Left view of the drum device in the middle;

[0022] Figure 5 For along Figure 4 A sectional view cut along the BB line in the image;

[0023] Figure 6 for Figure 5 A three-dimensional exploded view of the heating device and heating base plate.

[0024] The components are as follows: 100. Drum equipment; 10. Drum machine; 101. Installation station; 1. Air pipeline; 2. Heating base plate; 21. Air inlet; 22. Mounting hole; 3. Heating device; 31. Electric heating rod; 32. Thermocouple; 4. Left shaft head; 41. Air supply passage; 411. Main air supply passage; 412. Branch air supply passage; 5. Right shaft head; 6. Mounting bracket; 7. Electric slip ring; 8. Rotary joint; 9. Wire; 20. Lower mold; 201. Cavity; 30. Drive device; 11. Reducer; 12. Servo motor; 40. Bearing seat; 13. Bearing. Detailed Implementation

[0025] To illustrate the technical content, structural features, achieved objectives, and effects of the application in detail, the technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. In the following description, for illustrative purposes, numerous specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in one or more equivalent arrangements. Furthermore, the various exemplary embodiments may differ, but are not necessarily exclusive. For example, the specific shape, structure, and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the inventive concept.

[0026] This application provides a rotary drum device for hot pressing and shaping. The rotary drum device 100 is installed below the upper mold of a hot press and presses against the upper mold when the upper mold is pressed down to hot press and shape the product.

[0027] like Figure 1 As shown, the drum machine 100 includes: a drum machine 10, a plurality of lower molds 20 detachably mounted on the drum machine 10, and a drive device 30 mounted on one end of the drum machine 10. The drum machine 10 is rotatable about a centerline X1 extending in the left-right direction. The plurality of lower molds 20 are distributed sequentially around the outer end of the drum machine 10 along the circumference of the centerline X1. The drive device 30 is used to drive the drum machine 10 to rotate about the centerline X1, so that the plurality of molds 20 mounted on the drum machine 10 rotate with the drum machine 10, thereby rotating one by one to the uppermost side of the drum machine 10 and pressing against the upper mold above.

[0028] like Figure 1 , 3 As shown in Figure 4, the drum machine 10 includes multiple installation stations 101 arranged sequentially along the circumferential direction of the axis X1. Each installation station 101 is equipped with an air pipe 1, a heating base plate 2, and a heating device 3. The heating device 3 is installed in the corresponding heating base plate 2 and is used to heat the corresponding heating base plate 2. One end of each air pipe 1 is connected to an external air source, and the other end is in fluid communication with the corresponding heating base plate 2. The heating base plate 2 has a gas channel in fluid communication with the air pipe 1, and the gas channel forms multiple air vents 21 on the outer surface of the heating base plate 2.

[0029] Each installation station 101 installs a lower mold 20. Each lower mold 20 is detachably installed on a corresponding heating base plate 2. Each heating base plate 2 transfers the heat from the corresponding heating device 3 to the contacting lower mold 20, thereby heating the lower mold 20.

[0030] like Figure 6As shown, each heating device 3 includes multiple electric heating rods 31, and each electric heating rod 31 is energized for heating. Each heating base plate 2 has multiple mounting holes 22, and the multiple electric heating rods 31 are respectively inserted into the corresponding mounting holes 22 of the heating base plate 2. The multiple mounting holes 22 are arranged to avoid the gas passage, so as not to affect the airtightness of the gas passage.

[0031] Each heating device 3 also includes a thermocouple 32 and a temperature control module (not shown in the figure). The thermocouple 32 is used to detect the temperature of the corresponding lower mold 20. The thermocouple 32 and the corresponding multiple electric heating rods 31 are electrically connected to the temperature control module. The thermocouple 32 feeds back the detected temperature to the temperature control module. The temperature control module controls the heating temperature of the multiple electric heating rods 31 based on the detection result of the thermocouple 32, thereby accurately controlling the temperature of the lower mold 20 and effectively improving the hot pressing and shaping effect.

[0032] like Figure 5 As shown, each lower mold 20 has a cavity 201 that mates with the upper mold. Each lower mold 20 has multiple air holes (not shown in the figure) that communicate with the cavity 201. These air holes are connected to multiple air vents 21 of the corresponding heating base plate 2. The air pipe 1, gas channel, multiple air vents 21, and multiple air holes are connected in sequence to form an air supply path between the external air source and the cavity 201 of the lower mold 20. This allows for blowing and sucking air into the cavity 201 through the air supply path. When the air supply path sucks air into the cavity 201, the product can be adsorbed into the cavity 201, effectively preventing the product from shifting or falling off. The lower mold 20 can carry the product as it rotates with the drum machine 10. When the air supply path blows air into the cavity 201, the product can be separated from the lower mold 20, completing the automatic feeding.

[0033] like Figure 1 , 2 As shown in Figure 5, the drum machine 10 also includes a left shaft head 4, a right shaft head 5, and a mounting bracket 6. The left shaft head 4 and the right shaft head 5 are arranged opposite each other. The left shaft head 4, the right shaft head 5, and the mounting bracket 6 are all coaxially arranged with the axis X1 as their own axis. The mounting bracket 6 is connected between the left shaft head 4 and the right shaft head 5 to ensure that the left shaft head 4, the right shaft head 5, and the mounting bracket 6 can rotate synchronously around the axis X1. Multiple heating base plates 2 are installed on the outer surface of the mounting bracket 6. The lower mold 20, the air pipe 1, and the heating device 3 connected to the heating base plate 2 can all rotate around the axis X1 with the mounting bracket 6.

[0034] like Figure 3 , 4 As shown, the cross-section of the mounting frame 6 is an equilateral polygon, ensuring that the rotation angle of each mounting station 101 is equal. In this embodiment, the drum machine is a six-sided drum machine, and the drum machine 10 includes six mounting stations 101. The cross-section of the mounting frame 6 is a regular hexagon.

[0035] like Figure 5 As shown, an electric slip ring 7 and a rotary joint 8 are installed on the left shaft head 4. The electric slip ring 7 is electrically connected to the power supply and is electrically connected to each heating device 3 through the wire 9. The electric slip ring 7 can ensure that the power supply continuously provides power to each heating device 3 during the rotation of the drum machine 10.

[0036] The rotary joint 8 is connected to an external air source, and an air supply passage 41 is provided inside the left shaft head 4. The rotary joint 8 is in fluid communication with the air pipe 1 of each installation station 101 through the air supply passage 41. The rotary joint 8 can ensure that the external air source and each air pipe 1 are kept in fluid communication during the rotation of the drum machine 10.

[0037] The gas transmission passage 41 includes a main gas transmission line 411 and a plurality of gas transmission branches 412 distributed circumferentially along the main gas transmission line 411. The main gas transmission line 411 extends in the left-right direction and is connected to the rotary joint 8. The gas transmission branches 412 all extend radially along the main gas transmission line 411, and one end of each gas transmission branch 412 is connected to the main gas transmission line 411, and the other end is connected to a gas pipeline 1.

[0038] Multiple through holes are provided inside the left shaft head 4 for the power supply line 9 to pass through. These through holes are set away from the air supply passage 41 to avoid affecting the airtightness of the air supply passage 41.

[0039] like Figure 1 , 2 As shown in Figure 5, the drive device 30 is mounted on the right shaft head 5. The drive device 30 includes a reducer 11 and a servo motor 12. The reducer 11 is connected between the drum machine 10 and the servo motor 12. The servo motor 12 is used to drive the drum machine 10 to rotate around the axis X1.

[0040] The drum device 100 also includes a pair of bearing seats 40 arranged opposite each other on the left and right sides. The left shaft head 4 and the right shaft head 5 are respectively supported on the pair of bearing seats 40. At least one bearing 13 is installed in each bearing seat 40, and the left shaft head 4 and the right shaft head 5 are inserted into the corresponding bearing 13.

[0041] In this application, when one of the installation stations moves below the upper mold, the upper and lower molds press together for hot pressing and shaping. Simultaneously, in other installation stations, products that have already been hot-pressed and shaped can be detached from the lower mold 20 under the air blowing in the cavity. After the lower mold has been unloaded, the operator can place products to be hot-pressed and shaped into it. This rotary drum equipment can automatically perform hot pressing and unloading, and the multiple installation stations on the rotary drum machine rotate cyclically, allowing material handling, hot pressing and shaping, and unloading to be performed simultaneously, effectively saving time and improving production efficiency.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this application. Various changes and modifications can be made without departing from the spirit and scope of this application. The scope of protection claimed by this application is defined by the appended claims, specification, and their equivalents.

Claims

1. A rotary drum device for hot pressing and shaping, installed below the upper mold of a hot press, characterized in that, The aforementioned drum device includes: A drum machine rotates around a central axis extending in a left-right direction. The drum machine includes multiple installation stations arranged circumferentially along the central axis. Each installation station is equipped with a heating base plate, a heating device, and an air pipe. The heating device is installed in the corresponding heating base plate. One end of each air pipe is connected to an external air source, and the other end is in fluid communication with the corresponding heating base plate. The heating base plate has a gas channel in fluid communication with the air pipe, and the gas channel forms multiple air vents on the outer surface of the heating base plate. Multiple lower molds, each lower mold having a cavity that mates with the upper mold, one lower mold installed at each installation station, each lower mold detachably mounted on a corresponding heating base plate, each lower mold having multiple air holes communicating with the cavity, the multiple air holes communicating with multiple air vents on the corresponding heating base plate; and A drive unit is installed at one end of the drum machine. The drive unit includes a reducer and a servo motor. The reducer is connected between the drum machine and the servo motor. The servo motor is used to drive the drum machine to rotate around the axis.

2. The drum device according to claim 1, characterized in that, The drum machine further includes a left shaft head and a right shaft head arranged opposite each other, and a mounting frame connected between the left shaft head and the right shaft head. The left shaft head, the right shaft head and the mounting frame are arranged coaxially. Multiple heating base plates are installed on the outer surface of the mounting frame. The cross-section of the mounting frame is an equilateral polygon.

3. The drum device according to claim 2, characterized in that, The drum machine also includes an electric slip ring and a rotary joint. The electric slip ring and the rotary joint are coaxially mounted on the left shaft head, and the drive device is mounted on the right shaft head. The electric slip ring is electrically connected to a power source, and the rotary joint is connected to an external air source.

4. The drum device according to claim 3, characterized in that, The left shaft head is provided with an air supply passage, which includes a main air supply line and a plurality of air supply branches distributed circumferentially along the main air supply line. The main air supply line extends in the left-right direction and is connected to the rotary joint. The air supply branches all extend radially along the main air supply line, and one end of each air supply branch is connected to the main air supply line, and the other end is connected to an air pipe.

5. The drum device according to claim 4, characterized in that, The electric slip ring is connected to each of the heating devices by wires, and the left shaft head has multiple through holes for the wires to pass through, which are arranged to avoid the gas supply passage.

6. The drum device according to claim 2, characterized in that, It also includes a pair of bearing seats arranged opposite each other, the left shaft head and the right shaft head are respectively supported on the pair of bearing seats, at least one bearing is installed in each bearing seat, and the left shaft head and the right shaft head pass through the corresponding bearing.

7. The drum device according to claim 1, characterized in that, Each of the heating devices includes multiple electric heating rods, and the heating base plate has multiple mounting holes. The multiple electric heating rods are respectively inserted into the corresponding mounting holes of the heating base plate, and the multiple mounting holes are arranged to avoid the gas passage.

8. The drum device according to claim 7, characterized in that, Each of the heating devices further includes a thermocouple and a temperature control module, wherein the thermocouple and the corresponding plurality of electric heating rods are electrically connected to the temperature control module.

9. The drum device according to claim 1, characterized in that, The drum machine is a six-sided drum machine, which includes six installation stations.

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