WO2017215255A1 - 适用于电加热成型设备的双轴旋转结构 - Google Patents

适用于电加热成型设备的双轴旋转结构 Download PDF

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Publication number
WO2017215255A1
WO2017215255A1 PCT/CN2017/000366 CN2017000366W WO2017215255A1 WO 2017215255 A1 WO2017215255 A1 WO 2017215255A1 CN 2017000366 W CN2017000366 W CN 2017000366W WO 2017215255 A1 WO2017215255 A1 WO 2017215255A1
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WO
WIPO (PCT)
Prior art keywords
countershaft
cable
main shaft
countershafts
shaft
Prior art date
Application number
PCT/CN2017/000366
Other languages
English (en)
French (fr)
Inventor
宋海涛
Original Assignee
宋海涛
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201610422986.0A external-priority patent/CN106626187B/zh
Priority claimed from CN201620571512.8U external-priority patent/CN206085455U/zh
Application filed by 宋海涛 filed Critical 宋海涛
Priority to AU2017285821A priority Critical patent/AU2017285821B2/en
Priority to EP17812373.3A priority patent/EP3470200B1/en
Priority to US16/310,306 priority patent/US11007682B2/en
Publication of WO2017215255A1 publication Critical patent/WO2017215255A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
    • B29C41/06—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould about two or more axes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/0083—Electrical or fluid connection systems therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34—Component parts, details or accessories; Auxiliary operations
    • B29C41/46—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/002—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor characterised by the choice of material
    • B29C51/004—Textile or other fibrous material made from plastics fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/22—Making multilayered or multicoloured articles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
    • F16H2003/0933—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts with coaxial countershafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts

Definitions

  • the invention relates to the field of electric heating rotomolding technology, in particular to a biaxial rotating structure suitable for electric heating forming equipment.
  • the traditional rotomolding equipment uses the heat generated by the combustion of liquefied gas, natural gas or diesel as the source of thermal energy.
  • the heat first heats the air in the oven, and then the heated hot air conducts the heat to the mold rotating in the oven.
  • the plastic glue raw material After being heated to the melting point of the plastic raw material, the plastic glue raw material gradually adheres to the inner wall of the mold until it is completely plasticized and adhered to the inner wall of the mold, and then the heating is stopped, and the plasticized plastic is cooled and solidified into the shape of the inner wall of the mold. After the mold is disassembled, the product is taken out, cooled, and the product is processed.
  • Double-frame structure Another structural mode that emerges is the use of a double-frame structure, which uses 3-4 directions for strong and weak electricity.
  • the structure of such equipment is complicated, and the double-frame structure itself causes inconvenience in operation, and the floor space and space requirements. Huge, the double frame is very obstructing the observation of the running mold when it is rotating.
  • the double-frame structure will cause inconvenience to the operation: the double-frame structure causes the distance between the outer frame and the mold to be enlarged, which is not conducive to the operation of the mold and the product by the employee, and the spacing between the inner frame and the outer frame greatly affects the mold in the device.
  • the upper layout reduces the efficiency and ability of the layout mold, thus causing difficulties in the production of some flat or deep groove shaped products.
  • the heating source of the experimental electric heating device has electric heating gas, microwave, electric heating tube, electromagnetic heater or infrared light.
  • electric heating gas it is necessary to heat the air first, and then transfer the heat to the mold, the efficiency is low, and when the mold is replaced, the heat is lost, resulting in waste of heat; the heating efficiency of the electric heating tube itself is not high, and the heating is concentrated, which is not conducive to Uniform heating of the mold, and because of its heat conduction mode, must have direct contact with the mold to have a good effect, will cause a lot of difficulties in the distribution and fixation of the electric heating tube; microwave mode, because the microwave is required, the mold needs a larger opening Used in microwave sources, it is not suitable for processing products close to airtight, and such close-closed products account for about 60% of rotomolded products; electromagnetic heaters, because they require high-frequency current, and need to be buried inside the mold, for casting The process requirements are very high, these two points greatly increase the cost of molds and equipment; infrared light, inf
  • the object of the present invention is to overcome the deficiencies in the prior art and provide a biaxial rotating structure suitable for an electric heating forming device, which can realize two-axis rotation, and has a relatively simple structure, a small occupied area, energy saving, environmental protection, and cost. It is also relatively low.
  • a two-axis rotating structure suitable for electric heating forming equipment comprising:
  • main shaft is continuously rotated about a horizontal central axis of the main shaft by a main motor;
  • a housing disposed at an end of the spindle to rotate synchronously with the spindle
  • a first countershaft is sleeved in the main shaft, and the first countershaft is continuously rotated about a horizontal central axis of the first countershaft by a sub motor;
  • Two second countershafts the ends are oppositely symmetrically disposed inside the casing, the two second countershafts are respectively vertically hinged with the first countershaft, and the first countershaft drives the two by a transmission gear
  • the second countershafts are each continuously rotated about a central axis of the two second countershafts;
  • a third countershaft is sleeved in the first countershaft, and the third countershaft is rotated synchronously with the spindle by a main motor, and a strong electric cable and a weak electric control are disposed in the third countershaft Electricity a shielding structure between the high-voltage cable and the weak electric control cable;
  • Two fixed disks for fixing the molds the two fixed disks are respectively disposed at the ends of the two second auxiliary shafts, and the fixed disks rotate synchronously with the rotation of the corresponding second secondary shafts;
  • Two first slip rings are disposed in the housing respectively corresponding to the two second countershafts, and inner rings of the two first slip rings are connected to one end of the strong electric cable and the weak electric control cable Connecting, the outer rings of the two first slip rings are each rotated synchronously with the corresponding second countershaft;
  • the inner ring of the second slip ring is respectively connected to the power supply cable and the control signal cable, and the outer ring of the second slip ring is respectively connected with the strong electric cable and the weak current control The other end of the cable is connected, and the outer ring of the second slip ring is connected to the third countershaft and rotates with the rotation of the third countershaft;
  • a plurality of electric heating elements the wires of the electric heating element being connected to the outer ring of the first collector slip ring on the same side thereof.
  • the second countershaft and the first countershaft are hinged by a bevel gear, and the first countershaft transmits the torque through the bevel gear to rotate the second countershaft.
  • the inner ring of the two first slip rings is fixed in the casing to be relatively stationary, and the outer rings of the two first slip rings are respectively sleeved on the second pair corresponding thereto.
  • the shaft rotates in synchronization with the corresponding second secondary shaft.
  • the strong electric cable and the weak electric control cable are fixed in the third countershaft through a cable support disc.
  • the cable support plate can be locked in position by the screw and nut.
  • the present invention is a biaxial rotating structure suitable for an electric heating forming apparatus, further comprising a replaceable mold base fixed to the fixed disc, and one or more molds fixed to the mold base on.
  • the electric heating element may be an infrared heating tube
  • the mold frame is provided with one or more heating boxes composed of a heating plate, and the infrared heating tube is fixed on the heating plate.
  • the electrical heating element product selected for implementation it is ensured that the distance between the heating plate to which the electric heating element is fixed and the mold is controlled within the effective working range of the electric heating element product.
  • the mold frame is provided with one or more mold clamping brackets, and the heating box is fixed by the mold clamping bracket, and the one or more molds are respectively fixed in the heating box.
  • the electrical heating element may also be a resistive heater that is applied to the surface of the mold.
  • the electrical heating element can be an electromagnetic heater that is embedded in the wall of the mold.
  • the electromagnetic heater is used with the inverter, and all the wires are shielded. This is a common knowledge in the art when an electromagnetic heater is used as an electric heating element, and will not be described again.
  • an end of the main shaft may further extend with an L-shaped arm, and the L-shaped arm communicates with the third auxiliary shaft.
  • the surface of the mold is provided with a temperature sensing element for monitoring the working state of the electric heating element.
  • a two-axis rotating structure suitable for electric heating forming equipment comprising:
  • main shaft is continuously rotated about a horizontal central axis of the main shaft by a main motor;
  • a housing disposed at an end of the spindle to rotate synchronously with the spindle
  • a first countershaft is sleeved in the main shaft, and the first countershaft is continuously rotated about a horizontal central axis of the first countershaft by a sub motor;
  • Two second countershafts the ends are oppositely symmetrically disposed inside the casing, the two second countershafts are respectively vertically hinged with the first countershaft, and the first countershaft drives the two by a transmission gear
  • the second countershafts are each continuously rotated about a central axis of the two second countershafts;
  • a third countershaft one end of which is connected to the casing, and is disposed coaxially opposite to the main shaft, and the third countershaft is rotated synchronously with the main shaft by a main motor, and the third countershaft is disposed in the middle a strong electric cable and a weak electric control cable, and a shielding structure is disposed between the high electric cable and the weak electric control cable;
  • Two fixed disks for fixing the molds the two fixed disks are respectively disposed at the ends of the two second auxiliary shafts, and the fixed disks rotate synchronously with the rotation of the corresponding second secondary shafts;
  • Two first slip rings are disposed in the housing respectively corresponding to the two second countershafts, and inner rings of the two first slip rings are connected to one end of the strong electric cable and the weak electric control cable Connecting, the outer rings of the two first slip rings are each rotated synchronously with the corresponding second countershaft;
  • the inner ring of the second slip ring is respectively connected to the power supply cable and the control signal cable, and the outer ring of the second slip ring is respectively connected with the strong electric cable and the weak current control Electricity
  • the other end of the cable is connected, and the outer ring of the second slip ring is connected to the third countershaft and rotates with the rotation of the third countershaft;
  • a plurality of electric heating elements the wires of the electric heating element being connected to the outer ring of the first collector slip ring on the same side thereof.
  • the present invention is applicable to the two-axis rotating structure of the electric heating forming device, which is provided with two sets of motors and four countershafts, and through the third countershaft
  • the main shaft shares a main motor
  • the third counter shaft rotates synchronously with the main shaft
  • the first counter shaft is driven by the sub motor and the main shaft can rotate relatively independently
  • the second sub shaft is vertically hinged with the first counter shaft.
  • the mold disposed on the fixed disc can rotate synchronously with the rotation of the second sub-shaft around the central axis of the corresponding second countershaft while rotating along the horizontal central axis of the main shaft, thereby achieving double
  • the shaft rotates continuously to meet the requirements of the rotary molding process for continuous rotation of the two shafts, which ensures that the raw materials can be evenly distributed on the inner wall of the mold; the main shaft and the third countershaft are driven by the main motor, so as to ensure that during the rotation,
  • the cable in the third countershaft does not be distorted; compared with the conventional device, the structure of the device of the invention is relatively simple, the volume is small, and the operation space is less required.
  • the sub-shaft sleeve is disposed in the main shaft, which makes the device of the present invention simple in structure and is very advantageous for the operator to operate the mold and the product, observe the operation of the mold and open and close the mold.
  • the operation is no longer hindered and limited by the inner frame and the outer frame, which improves the layout efficiency and capability of the device for the shaped and complex products.
  • Figure 1 is a perspective view of a preferred embodiment of a preferred embodiment of a two-axis rotating structure suitable for use in an electric heating forming apparatus.
  • Figure 2 is a schematic side view of the embodiment of Figure 1 (without the rotational molding die).
  • Figure 3 is a side cross-sectional view of the embodiment of Figure 1.
  • FIG. 4 is a cross-sectional structural view of the housing of the embodiment shown in FIG. 1.
  • FIG. 5 is a schematic structural view of the embodiment shown in FIG. 1 as seen from a top down perspective.
  • Fig. 6 is a schematic view showing the structure of the embodiment shown in Fig. 1 when a rotational molding die is installed.
  • Figure 7 is a schematic view showing the structure of the rotational molding die of Figure 6.
  • Fig. 8 is a perspective view showing another preferred embodiment of a biaxial rotating structure suitable for use in an electric heating molding apparatus of the present invention.
  • FIG. 9 is a schematic perspective view of the embodiment shown in FIG. 8.
  • FIG. 9 is a schematic perspective view of the embodiment shown in FIG. 8.
  • Fig. 10 is a perspective view showing the structure of still another preferred embodiment of the biaxial rotating structure applicable to the electric heating molding apparatus of the present invention.
  • Figure 11 is a perspective view showing the structure of the embodiment shown in Figure 10.
  • a two-axis rotating structure suitable for an electric heating forming apparatus as shown in FIGS. 1-5 includes: a main shaft 10, a casing 38, a first countershaft 5, two second countershafts 37, and a third countershaft 1.
  • Two fixed disks 36 are respectively provided at the ends of the two second countershafts 37, and a casing 38 is provided at the end of the main shaft 10.
  • the main shaft 10 is fixed to the frame 73 through the bearing seat 43, and the main motor 69 drives the horizontal central axis of the main shaft 10 to continuously rotate, and the casing 38 rotates synchronously with the main shaft 10.
  • the first countershaft 5 is sleeved in the main shaft 10 through a bearing, and is continuously rotated about the central shaft by the sub motor 74, and the rotation of the main shaft 10 and the first countershaft 5 are independent of each other.
  • the ends of the two second countershafts 37 are symmetrically disposed inside the casing 38, respectively, and are fixed by bearings.
  • the two second countershafts 37 are respectively hinged with the first countershaft 5 through the bevel gear 23, and the first countershaft 5 passes through the cone.
  • the gear 23 realizes the transmission of torque, and drives the two second countershafts 37 to continuously rotate around the central axis of the second countershaft 37.
  • the housing 38 disposed at the end of the main shaft 10 rotates with the rotation of the main shaft 10
  • the two second sub shafts 37 disposed inside the housing 38 are centered around the center thereof.
  • the rotation also rotates around the central axis of the main shaft, and the process drives the mold on the fixed disc 36 to rotate about the horizontal central axis of the main shaft 10 while rotating synchronously around the central axis of the corresponding second sub-shaft 37, thereby realizing the two-axis. Continuous rotation.
  • the third countershaft 1 is sleeved in the first countershaft 5, and the third countershaft 1 is rotated by the main motor 69 in synchronization with the main shaft 10, and the third subshaft 1 is provided with a strong electric cable and a weak electric control cable 82, and It is fixed in the third countershaft 1 by a cable support disk 81.
  • the strong electrical cable and the weak electrical control cable are shielded and spaced apart from one another.
  • the inner ring of the two first slip rings 71 is fixed in the casing 38 and connected to one end of the high-voltage cable and the weak electric control cable 82 near the fixed plate 36.
  • the outer rings of the two first slip rings 71 are respectively sleeved on the outer ring.
  • the corresponding second countershaft 37 rotates in synchronization with the corresponding second countershaft 37.
  • the inner rings of the second collector slip ring 72 are respectively connected to the power supply cable derived from the power supply cabinet and the control signal cable derived from the control cabinet.
  • the outer rings of the second collector slip ring 72 are respectively connected to the strong electric cable and the weak electric control cable 82.
  • the other end is connected and connected to the third countershaft 1 and rotates with the rotation of the third countershaft 1.
  • the mold frame 80 is locked on the fixed plate 36.
  • One or more mold clamping brackets 89 are disposed on the mold frame 80, and one or more molds 84 can be respectively fixed to the corresponding mold clamping brackets 89. Up, thereby being fixed to the formwork 80.
  • a plurality of heating plates 86 constitute a heating box, and an infrared heating tube 85 is fixed on the heating plate 86.
  • the distance between the heating plate 86 and the mold 84 is determined according to the effective working range of the selected infrared heating tube 85, for example, using the existing market. For most economical infrared heating tubes, this distance is generally set to less than 200 mm.
  • an infrared heating tube with a large effective working range can also be set within 500 mm or other suitable range.
  • the wire of the infrared heating tube 85 is connected to the outer ring of the first collecting slip ring 71 on the same side through the hole 88 to realize the power supply operation.
  • Such a strong electric power for heating and a weak electric circuit for control can be smoothly conducted to an infrared heating tube fixed to the fixed disk 36 for rotomolding the mold to heat the mold to complete the production of the rotationally molded product.
  • the mold base 80 can be replaced.
  • the number and size of the molds need to be adjusted only the size of the mold base 80 needs to be adjusted correspondingly.
  • the surface of the mold 84 may further be provided with a temperature sensing element (not shown) for monitoring the working state of the infrared heating tube.
  • a temperature sensing element (not shown) for monitoring the working state of the infrared heating tube.
  • the infrared heating tube 84, the PLC console, the temperature controller, the power regulator and the like form a closed loop control system to control the operation of the infrared heating tube 84.
  • the temperature sensing element is a contact temperature sensing element or an infrared temperature sensing element.
  • the structure of the present embodiment is substantially the same as that of the previous embodiment, except that the spindle 10 in the embodiment further extends with an L-shaped roller arm. 42.
  • the L-type roller arm 42 and the third countershaft 1 communicate with each other such that the strong electric cable and the weak electric control cable 82 can be continuously laid in the third countershaft 1 and the L-shaped roller arm 42.
  • This extension of the structure of an L-shaped arm is more beneficial for the processing of long tubular products, or large-sized product processing, or products having the aforementioned two characteristics.
  • the structure of the embodiment shown in the embodiment is mainly different in that, in this embodiment, the third countershaft 1 is not sleeved in the first countershaft 5, but is disposed coaxially with the main shaft 10, and the third countershaft One end of 1 is connected to the housing 38.
  • FIG. 10 and 11 is identical to the operation of the embodiment shown in Figures 1-7.
  • both the main shaft 10 and the third countershaft 1 are driven by the main motor 69 to the level of the main shaft 10.
  • the central shaft rotates synchronously, and the casing 38 rotates synchronously with the rotation of the main shaft 10.
  • the first countershaft 5 is continuously rotated about the central axis by the sub motor 74, and the rotation of the main shaft 10 and the first countershaft 5 are independent of each other.
  • the two second countershafts 37 are disposed inside the casing 38, and are respectively fixed by bearings.
  • the two second countershafts 37 and the first countershaft 5 are hinged by the bevel gears 23.
  • the first countershaft 5 transmits torque through the bevel gears 23.
  • the two second countershafts 37 are continuously rotated about their respective central axes.
  • the housing 38 disposed at the end of the main shaft 10 rotates with the rotation of the main shaft 10
  • the two second sub shafts 37 disposed inside the housing 38 are centered around the center thereof.
  • the rotation also rotates around the central axis of the main shaft, and the process drives the mold on the fixed disc 36 to rotate about the horizontal central axis of the main shaft 10 while rotating synchronously around the central axis of the corresponding second sub-shaft 37, thereby realizing the two-axis. Continuous rotation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Control Of Resistance Heating (AREA)
  • Resistance Heating (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

一种适用于电加热成型设备的双轴旋转结构，包括：一主轴（10）、一壳体（38）、一第一副轴（5）、两第二副轴（37）、一第三副轴（1）、两第一集电滑环（71）、一第二集电滑环（72）、两固定盘（36）和多个电加热元件（85），壳体（38）设置在主轴（10）的端部，两第二副轴（37）设置在壳体（38）内部，两固定盘（36）分别设置在两第二副轴（37）的端部，第三副轴（1）与主轴（10）同步旋转，而第一副轴（5）由副电机（74）带动与主轴（10）之间能够相对独立地旋转，两第二副轴（37）分别与第一副轴（5）垂直铰接。该适用于电加热成型设备的双轴旋转结构，能够使成型设备上的模具实现双轴连续旋转，且结构相对简单、占地面积小、节能环保、成本也相对较低。

Description

适用于电加热成型设备的双轴旋转结构 技术领域
本发明涉及电加热滚塑技术领域，具体来说，是涉及一种适用于电加热成型设备的双轴旋转结构。
背景技术
传统的滚塑设备是以液化气、天然气或者柴油的燃烧产生的热量作为热能的来源，热能先加热烘箱内的空气，再由加热的热空气将热能传导给在烘箱内旋转的模具，模具内壁被加热到塑胶原料的熔融点后，塑料胶原料开始逐渐地附着在模具的内壁上，直至全部塑化并附着于模具内壁，随后加热停止，塑化的塑胶冷却，固化成模具内壁的形状，模具分拆后，取出产品，冷却，完成产品的加工。这样的热能传递方式，大量热能被用于加热巨大的烘箱内的空气，且当加热的模具移出烘箱时，烘箱门全部打开，烘箱内部的热量都被大量耗散，效率低，浪费大，且容易对环境造成污染。且这类设备占地面积巨大，空间使用率相对较低，成本偏高。
近年来新出现的试验性电加热滚塑设备，将加热的能源由传统的液化气、天然气或柴油改为电源。这类设备多是采用摇摆机类型，模具绕一个水平中心轴连续旋转，但无法绕与该水平中心轴垂直的另一中心轴进行连续旋转，而只能做有限的摆动。这类摇摆设备，极大地限制了滚塑工艺对于双轴连续旋转的要求，因此无法适应复杂形状滚塑产品的加工生产。
另外出现的一种结构模式是采用双框结构，利用3-4个方向做强电和弱电的疏导，这类设备结构复杂，双框结构本身就造成操作的不便，且占地面积和空间要求巨大，双框在旋转时，非常阻碍对于运转模具的观察。另外，双框结构会造成操作的不便：双框结构导致外框与模具的距离被放大，非常不利于员工对于模具和产品的操作，且内框和外框的间距，极大地影响模具在设备上布局，降低了布局模具的效率和能力，因此会给一些扁平或有深凹槽形状的产品的生产造成困难。
目前已有的试验性的电加热设备的加热源，有电热气、微波、电热管、电磁加热器或红外线。电热气的方式，还是需要先加热空气，再将热量传导给模具，效率偏低，而且更换模具时，热气散失，造成热量的浪费；电热管本身加热效率就不高，而且加热集中，不利于均匀加热模具，且因为其导热方式，必须直接接触模具才有好的效果，会给电热管的分布和固定造成非常多的困难；微波的方式，因为要导入微波，需要模具有较大的开口用于微波源，不适加工接近密密闭的产品，而且这类接近密闭的产品约占滚塑产品的60％左右；电磁加热器，因为需要高频电流、且需要埋置于模具内部，对于铸造工艺的要求非常高，这两点极大地增加了模具和设备成本；红外线加热是比较理想加热方式，但是现有的电加热设备，将红外线加热器固定在加热箱上，而加热箱或是固定不动，或是只能做类似摇摆机的转动，这两种方式，都使得红外线加热器远离模具(尤其是正方形或者其它异形产品)，极大降低了红外线加热的效率，在实践中的效果不佳，阻碍了这种加热技术的应用。
发明内容
本发明的目的是克服现有技术中的不足之处，提供一种适用于电加热成型设备的双轴旋转结构，能够实现双轴旋转，且结构相对简单、占地面积小、节能环保、成本也相对较低。
本发明的目的是这样实现的：
一种适用于电加热成型设备的双轴旋转结构，包括：
一主轴，通过主电机带动所述主轴绕所述主轴的水平中心轴连续旋转；
一壳体，设于所述主轴的端部，与所述主轴同步旋转；
一第一副轴，套设在所述主轴内，通过副电机带动所述第一副轴绕所述第一副轴的水平中心轴连续旋转；
两第二副轴，端部相对地对称设置在所述壳体内部，所述两第二副轴分别与所述第一副轴垂直铰接，所述第一副轴通过传动齿轮带动所述两第二副轴各自绕所述两第二副轴的中心轴连续旋转；
一第三副轴，套设在所述第一副轴内，通过主电机带动所述第三副轴与所述主轴同步进行旋转，所述第三副轴中敷设有强电电缆和弱电控制电 缆，所述强电电缆和所述弱电控制电缆之间设有屏蔽结构；
两固定盘，用于固定模具，所述两固定盘分别设于所述两第二副轴的端部，所述固定盘随其对应的所述第二副轴的转动同步旋转；
两第一集电滑环，设于所述壳体内，分别对应所述两第二副轴，所述两第一集电滑环的内圈均与所述强电电缆和弱电控制电缆的一端连接，所述两第一集电滑环的外圈各自与其所对应的第二副轴同步旋转；
一第二集电滑环，所述第二集电滑环的内圈分别与供电电缆和控制信号电缆相连，所述第二集电滑环的外圈分别与所述强电电缆和弱电控制电缆的另一端连接，并且所述第二集电滑环的外圈与所述第三副轴连接并随所述第三副轴的转动旋转；
多个电加热元件，所述电加热元件的导线与其同侧的第一集电滑环的外圈连接。
其中，所述第二副轴与所述第一副轴通过锥齿轮铰接，所述第一副轴通过所述锥齿轮传输转矩带动所述第二副轴旋转。
其中，所述两第一集电滑环的内圈固定在所述壳体内，从而保持相对静止，所述两第一集电滑环的外圈分别套设在与其对应的所述第二副轴内，并随与其对应的所述第二副轴同步旋转。
其中，所述强电电缆和所述弱电控制电缆通过线缆支撑盘固定在所述第三副轴内。线缆支撑盘可以通过丝杆和螺母锁定位置。当然，也可以采用现有技术中的其它固定结构将强电电缆和弱电控制电缆固定在所述第三副轴内。
进一步地，本发明一种适用于电加热成型设备的双轴旋转结构，还包括可替换的模架，所述模架固定在所述固定盘上，一个或多个模具固定在所述模架上。
其中，所述电加热元件可以为红外线加热管，所述模架上设有一个或多个由加热板组成的加热箱，所述红外线加热管固定在所述加热板上。根据实施时选用的电加热元件产品，保证所述固定有电加热元件的加热板与所述模具之间的距离控制在该电加热元件产品的有效工作范围内。
进一步地，所述模架上设有一个或多个锁模支架，所述加热箱通过所述锁模支架固定，所述一个或多个模具分别固定在所述加热箱中。
或者地，所述电加热元件也可以为电阻式加热器，所述电阻式加热器贴敷在所述模具的表面。
或者地，所述电加热元件可以为电磁加热器，所述电磁加热器埋设于所述模具的壁中。在实施时，采用电磁加热器需配合变频器使用，并且所有导线均采用屏蔽线缆。此为本领域中采用电磁加热器作为电加热元件时的公知常识，再此不赘述。
进一步地，所述主轴的端部还可以延伸设有一L型臂，所述L型臂与所述第三副轴连通。
进一步地，所述模具的表面设有感温元件，用于监控所述电加热元件的工作状态。
在同一构思下，作为本发明的一种变化形式，同样也能实现本发明目的。一种适用于电加热成型设备的双轴旋转结构，包括：
一主轴，通过主电机带动所述主轴绕所述主轴的水平中心轴连续旋转；
一壳体，设于所述主轴的端部，与所述主轴同步旋转；
一第一副轴，套设在所述主轴内，通过副电机带动所述第一副轴绕所述第一副轴的水平中心轴连续旋转；
两第二副轴，端部相对地对称设置在所述壳体内部，所述两第二副轴分别与所述第一副轴垂直铰接，所述第一副轴通过传动齿轮带动所述两第二副轴各自绕所述两第二副轴的中心轴连续旋转；
一第三副轴，一端与所述壳体连接，与所述主轴同轴相对设置，通过主电机带动所述第三副轴与所述主轴同步进行旋转，所述第三副轴中敷设有强电电缆和弱电控制电缆，所述强电电缆和所述弱电控制电缆之间设有屏蔽结构；
两固定盘，用于固定模具，所述两固定盘分别设于所述两第二副轴的端部，所述固定盘随其对应的所述第二副轴的转动同步旋转；
两第一集电滑环，设于所述壳体内，分别对应所述两第二副轴，所述两第一集电滑环的内圈均与所述强电电缆和弱电控制电缆的一端连接，所述两第一集电滑环的外圈各自与其所对应的第二副轴同步旋转；
一第二集电滑环，所述第二集电滑环的内圈分别与供电电缆和控制信号电缆相连，所述第二集电滑环的外圈分别与所述强电电缆和弱电控制电 缆的另一端连接，并且所述第二集电滑环的外圈与所述第三副轴连接并随所述第三副轴的转动旋转；
多个电加热元件，所述电加热元件的导线与其同侧的第一集电滑环的外圈连接。
本发明由于采用了上述技术方案，与现有技术相比具有以下有益效果：本发明适用于电加热成型设备的双轴旋转结构设有两套电机和四根副轴，通过第三副轴与主轴共用一个主电机，第三副轴与主轴同步旋转，而第一副轴由副电机带动与所述主轴之间能够相对独立地旋转，两第二副轴与所述第一副轴垂直铰接，使得设置在固定盘上的模具可以在随着主轴的转动绕主轴的水平中心轴转动的同时还随着第二副轴的转动绕对应的第二副轴的中心轴同步旋转，从而实现双轴连续旋转，满足滚塑工艺对双轴连续旋转的要求，最大程度地保证了原料能够均匀地分布于模具的内壁；主轴和第三副轴均由主电机驱动，这样保证在旋转过程中，第三副轴中的电缆不会发生扭曲；与传统设备相比，本发明设备的结构组成相对简单，体积较小，对操作空间的要求较小，造价也相对低廉，性价比有了显著的提升；副轴套设在主轴内，使得本发明设备的外形结构简单，非常有利于操作员对于模具和产品的操作，在观察模具的运转和对于模具开合的操作中，不再受内框和外框架的阻碍和限制，提高了设备对于异形、复杂产品的布局效率和能力。
附图说明
通过以下本发明的实施例并结合附图的描述，示出本发明的其它优点和特征，该实施例以实例的形式给出，但并不限于此，其中：
图1为本发明适用于电加热成型设备的双轴旋转结构的一个较优实施例的立体结构示意图。
图2为图1所示实施例的一个侧面结构示意图(未安装滚塑模具)。
图3为图1所示实施例的一个侧面剖视图。
图4为图1中所示实施例的壳体的剖面结构示意图。
图5为图1所示实施例从上往下视角看时的结构示意图。
图6为图1所示实施例安装了滚塑模具时的结构示意图。
图7为图6中滚塑模具的结构示意图。
图8为本发明适用于电加热成型设备的双轴旋转结构的另一个较优实施例的立体结构示意图。
图9为图8所示实施例的立体结构示意图。
图10为本发明适用于电加热成型设备的双轴旋转结构的又一个较优实施例的立体结构示意图。
图11为图10所示实施例的立体结构示意图。
具体实施方式
如图1-5所示的适用于电加热成型设备的双轴旋转结构，包括：一主轴10、一壳体38、一第一副轴5、两第二副轴37、一第三副轴1、两第一集电滑环71、一第二集电滑环72、两固定盘36和多个电加热元件85(本实施例中为红外线加热管)。两固定盘36分别设置在两第二副轴37的端部，壳体38设置在主轴10的端部。
其中主轴10通过轴承座43固定在框架73上，通过主电机69带动绕主轴10的水平中心轴连续旋转，壳体38与主轴10同步旋转。第一副轴5通过轴承套设于主轴10内，并通过副电机74带动绕中心轴连续旋转，主轴10和第一副轴5的旋转相互独立。两第二副轴37的端部相对地对称设置在壳体38内部，各自通过轴承固定，两第二副轴37分别与第一副轴5通过锥齿轮23铰接，第一副轴5通过锥齿轮23实现转矩的传递，带动两第二副轴37各自绕第二副轴37的中心轴进行连续旋转。这样，当主电机69和副电机74启动时，设置在主轴10端部的壳体38随着主轴10的旋转而旋转，设置在壳体38内部的两第二副轴37在绕自身的中心轴旋转的同时也绕主轴的中心轴旋转，此过程带动固定盘36上的模具实现绕主轴10的水平中心轴转动的同时还绕对应的第二副轴37的中心轴同步旋转，从而实现双轴连续旋转。
第三副轴1套设在第一副轴5内，通过主电机69带动第三副轴1与主轴10同步进行旋转，第三副轴1中敷设有强电电缆和弱电控制电缆82，并通过线缆支撑盘81固定在第三副轴1中。强电电缆和所述弱电控制电缆之间是屏蔽且相互间隔的。
两第一集电滑环71的内圈固定在壳体38内并与强电电缆和弱电控制电缆82靠近固定盘36的一端连接，两第一集电滑环71的外圈分别套设在对应的第二副轴37内，并与该对应的第二副轴37同步旋转。第二集电滑环72的内圈分别与供电柜导出的供电电缆和控制柜中导出的控制信号电缆相连接，第二集电滑环72的外圈分别与强电电缆和弱电控制电缆82的另一端连接，且与第三副轴1连接并随第三副轴1的转动旋转。
结合图6、图7所示，模架80锁定在固定盘36上，模架80上设有一个或多个锁模支架89，一个或多个模具84可以分别固定在对应的锁模支架89上，从而固定到模架80上。多个加热板86组成加热箱，红外线加热管85固定在加热板86上，加热板86与模具84的距离根据所选用的红外线加热管85的有效工作范围来确定，例如使用现有市场上的大多数经济型红外线加热管，则这个距离一般设置成小于200mm，如果使用有效工作范围较大的红外线加热管，这个距离也可以设置成500mm以内，或其它适合的范围内。红外线加热管85的导线穿过孔位88与同侧的第一集电滑环71的外圈连接，实现供电工作。这样用于加热的强电和用于控制的弱电电路，都可以被顺利传导到固定于固定盘36上用于滚塑模具的红外线加热管，以加热模具，完成滚塑制品的生产。
其中，模架80可以替换，当模具数量和尺寸需要调整时，只需要对应调整模架80的尺寸就可以了。
优选地，模具84的表面还可以设有感温元件(图中未示出)，用于监控红外线加热管的工作状态。红外线加热管84、PLC控制台、温控仪、功率调整器等元件形成闭环控制系统，控制红外线加热管84的工作。其中，感温元件为接触式感温元件或红外线感温元件。
如图8和图9所示的本发明的另一实施例，本实施例的结构与上一实施例基本相同，不同之处在于，本实施例中的主轴10还延伸设有一L型滚臂42，L型滚臂42和第三副轴1之间连通，使得强电电缆和弱电控制电缆82可以连续地敷设在第三副轴1和L型滚臂42中。这种延伸设置一L型臂的结构对于长筒型产品，或大尺寸的产品加工，或具有前述两种特点的产品的加工更有益。
如图10和图11所示的本发明的又一实施例，本实施例的结构与图1-7 中所示的实施例的结构的不同之处主要在于：本实施例中，第三副轴1并非套设在第一副轴5内，而是与主轴10同轴相对设置，第三副轴1的一端与壳体38连接。
图10和图11所示的实施例与图1-7中所示实施例的工作原理相同，本实施例中，主轴10和第三副轴1都是通过主电机69带动绕主轴10的水平中心轴连续同步旋转，壳体38随主轴10的转动同步旋转，第一副轴5通过副电机74的带动绕中心轴连续旋转，主轴10和第一副轴5的旋转相互独立。两第二副轴37设置在壳体38内部，各自通过轴承固定，两第二副轴37与第一副轴5通过锥齿轮23铰接，第一副轴5通过锥齿轮23实现转矩的传递，带动两第二副轴37绕各自的中心轴进行连续旋转。这样，当主电机69和副电机74启动时，设置在主轴10端部的壳体38随着主轴10的旋转而旋转，设置在壳体38内部的两第二副轴37在绕自身的中心轴旋转的同时也绕主轴的中心轴旋转，此过程带动固定盘36上的模具实现绕主轴10的水平中心轴转动的同时还绕对应的第二副轴37的中心轴同步旋转，从而实现双轴连续旋转。
虽然本发明已依据较佳实施例在上文中加以说明，但这并不表示本发明的范围只局限于上述的结构，只要本技术领域的技术人员在阅读上述的说明后可很容易地发展出的等效替代结构，在不脱离本发明之精神与范围下所作之均等变化与修饰，皆应涵盖于本发明专利范围之内。

Claims (10)

  1. 一种适用于电加热成型设备的双轴旋转结构，其特征在于，包括：
    一主轴，通过主电机带动所述主轴绕所述主轴的水平中心轴连续旋转；
    一壳体，设于所述主轴的端部，与所述主轴同步旋转；
    一第一副轴，套设在所述主轴内，通过副电机带动所述第一副轴绕所述第一副轴的水平中心轴连续旋转；
    两第二副轴，端部相对地对称设置在所述壳体内部，所述两第二副轴分别与所述第一副轴垂直铰接，所述第一副轴通过传动齿轮带动所述两第二副轴各自绕所述两第二副轴的中心轴连续旋转；
    一第三副轴，套设在所述第一副轴内，通过主电机带动所述第三副轴与所述主轴同步进行旋转，所述第三副轴中敷设有强电电缆和弱电控制电缆，所述强电电缆和所述弱电控制电缆之间设有屏蔽结构；
    两固定盘，用于固定模具，所述两固定盘分别设于所述两第二副轴的端部，所述固定盘随其对应的所述第二副轴的转动同步旋转；
    两第一集电滑环，设于所述壳体内，分别对应所述两第二副轴，所述两第一集电滑环的内圈均与所述强电电缆和弱电控制电缆的一端连接，所述两第一集电滑环的外圈各自与其所对应的第二副轴同步旋转；
    一第二集电滑环，所述第二集电滑环的内圈分别与供电电缆和控制信号电缆相连，所述第二集电滑环的外圈分别与所述强电电缆和弱电控制电缆的另一端连接，并且所述第二集电滑环的外圈与所述第三副轴连接并随所述第三副轴的转动旋转；
    多个电加热元件，所述电加热元件的导线与其同侧的第一集电滑环的外圈连接。
  2. 如权利要求1所述的双轴旋转结构，其特征在于：所述第二副轴与所述第一副轴通过锥齿轮铰接，所述第一副轴通过所述锥齿轮传输转矩带动所述第二副轴旋转。
  3. 如权利要求1所述的双轴旋转结构，其特征在于：所述两第一集电滑环的内圈固定在所述壳体内，所述两第一集电滑环的外圈分别套设在与其对应的所述第二副轴内，并随与其对应的所述第二副轴同步旋转。
  4. 如权利要求1所述的双轴旋转结构备，其特征在于：所述强电电缆和所述弱电控制电缆通过线缆支撑盘固定在所述第三副轴内。
  5. 如权利要求1所述的双轴旋转结构，其特征在于：还包括可替换的模架，所述模架固定在所述固定盘上，一个或多个模具固定在所述模架上。
  6. 如权利要求5所述的双轴旋转结构，其特征在于：所述电加热元件为红外线加热管，所述模架上设有一个或多个由加热板组成的加热箱，所述红外线加热管固定在所述加热板上。
  7. 如权利要求6所述的双轴旋转结构，其特征在于：所述模架上设有一个或多个锁模支架，所述加热箱通过所述锁模支架固定，所述一个或多个模具分别固定在所述加热箱中。
  8. 如权利要求1所述的双轴旋转结构，其特征在于：所述主轴的端部还延伸设有一L型臂，所述L型臂与所述第三副轴连通。
  9. 如权利要求1-8中任一权利要求所述的双轴旋转结构，其特征在于：所述模具的表面设有感温元件，用于监控所述电加热元件的工作状态。
  10. 一种适用于电加热成型设备的双轴旋转结构，其特征在于，包括：
    一主轴，通过主电机带动所述主轴绕所述主轴的水平中心轴连续旋转；
    一壳体，设于所述主轴的端部，与所述主轴同步旋转；
    一第一副轴，套设在所述主轴内，通过副电机带动所述第一副轴绕所述第一副轴的水平中心轴连续旋转；
    两第二副轴，端部相对地对称设置在所述壳体内部，所述两第二副轴分别与所述第一副轴垂直铰接，所述第一副轴通过传动齿轮带动所述两第二副轴各自绕所述两第二副轴的中心轴连续旋转；
    一第三副轴，一端与所述壳体连接，与所述主轴同轴相对设置，通过主电机带动所述第三副轴与所述主轴同步进行旋转，所述第三副轴中敷设有强电电缆和弱电控制电缆，所述强电电缆和所述弱电控制电缆之间设有屏蔽结构；
    两固定盘，用于固定模具，所述两固定盘分别设于所述两第二副轴的端部，所述固定盘随其对应的所述第二副轴的转动同步旋转；
    两第一集电滑环，设于所述壳体内，分别对应所述两第二副轴，所述两第一集电滑环的内圈均与所述强电电缆和弱电控制电缆的一端连接，所 述两第一集电滑环的外圈各自与其所对应的第二副轴同步旋转；
    一第二集电滑环，所述第二集电滑环的内圈分别与供电电缆和控制信号电缆相连，所述第二集电滑环的外圈分别与所述强电电缆和弱电控制电缆的另一端连接，并且所述第二集电滑环的外圈与所述第三副轴连接并随所述第三副轴的转动旋转；
    多个电加热元件，所述电加热元件的导线与其同侧的第一集电滑环的外圈连接。
PCT/CN2017/000366 2016-06-14 2017-05-22 适用于电加热成型设备的双轴旋转结构 WO2017215255A1 (zh)

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