CN111251645A - Hot pressing device - Google Patents

Abstract

The application provides a hot press unit, including multiunit extrusion mechanism and mounting panel, the processing area of each group's extrusion spare after the combination is for the polygon in the advancing direction along processing work piece, or be the arbitrary relative both sides of virtual regular polygon. Extrusion mechanism comprises extruded article and elastic support piece, and when the processing work piece got into the extrusion mechanism of polygon window form, each extrusion mechanism can produce corresponding elastic deformation according to the shape of processing work piece because elastic support piece's elasticity to tightly oppress the processing work piece, make the parcel and the hot melt adhesive of processing work piece and extruded with extruded article contact surface heated and extrude, tightly laminate with the processing work piece, thereby avoid processing the unable hot-pressing process because of the big tolerance of work piece size. Moreover, different relative rotation angles are formed among the groups of polygonal window-shaped extrusion mechanisms, so that the surfaces of the machined workpieces needing hot pressing can be covered in all directions, the comprehensiveness of the hot pressing of the machined workpieces is further ensured, and the machining quality is effectively improved.

Description

Hot pressing device

technical field

The present application relates to the technical field of hot processing, and in particular, to a hot pressing device.

Background technique

In the prior art, if it is necessary to wrap and paste a flexible wrap on the surface of a polygonal or cylindrical workpiece, the factory generally uses a precision mold to heat and extrude the workpiece and the wrap, so that the hot-melt adhesive can seal the wrap and the work piece. tightly together. However, if the polygonal or cylindrical workpiece is twisted, skewed or has a large size tolerance, the precision mold will not be able to fully extrude the workpiece due to the distortion of the shape of the workpiece or the large size tolerance when the workpiece is heated and extruded. All the sticking surfaces of the workpiece make it impossible to complete the hot-press wrapping in some areas of the workpiece, and the processing fails, which seriously affects the quality of the hot-pressed finished product.

SUMMARY OF THE INVENTION

The main purpose of the present application is to provide a hot pressing device, which aims to solve the disadvantage that the existing hot pressing device cannot perform hot pressing on workpieces with distorted shapes or large dimensional tolerances.

In order to achieve the above purpose, the present application provides a hot pressing device, comprising a mounting plate and at least one group of pressing mechanisms, the pressing mechanism includes a pressing part and an elastic support, one end of the elastic support is connected to the pressing The pressure piece is connected, and the other end is fixed on the mounting plate;

The extrusion part is used for pressing and processing the workpiece, and a heating device is arranged inside;

The processing area after the extrusion parts of each group of the extrusion mechanisms are combined in the traveling direction of the workpiece to be processed is a polygon, or the extrusion parts of each group of the extrusion mechanisms are combined in the traveling direction of the workpiece to be processed. The processing area is any opposite two sides of a virtual regular polygon, the virtual regular polygon is an even-numbered side, and the relative rotation angles between the extrusion mechanisms are all different or partially different.

Further, the extrusion member is a roller, the roller includes a roller body and a rolling shaft, the roller body is sleeved on the rolling shaft, the roller body is rolled relative to the rolling shaft, and the rolling shaft Both ends are respectively fixedly connected with the elastic support.

Further, the drum body is made of elastic material.

Further, the heating device is an electric heating pipe, and the electric heating pipe is embedded inside the rolling shaft along the axial direction.

Further, an elastic layer is laid on the surface of the extrusion piece that contacts the workpiece to be processed, and the entire elastic layer is made of elastic material.

Further, the elastic material is rubber or silicone.

Further, the elastic support member includes an outer tube, an inner lever and a spring, the outer tube is in the shape of a hollow tube, the outer tube is sleeved outside the inner lever, and the outer tube is provided with a limiting structure for restricting the inner lever from disengaging from the outer tube;

The spring is arranged inside the outer tube, one end of the spring abuts against one end of the inner bar for supporting the inner bar, and the other end abuts against the inner wall of the outer tube.

Further, the end of the outer tube away from the inner bar is provided with a first mounting portion, the other end of the inner bar is provided with a second mounting portion, and the outer tube is fixed on the outer tube through the first mounting portion. On the mounting plate, the inner bar is fixedly connected to the extrusion piece through the second mounting portion.

Further, the hot pressing device further includes a clamping mechanism, which is used for clamping and transporting the processed workpiece, and the clamping mechanism is fixed on the mounting plate.

Further, a set of the extrusion mechanisms includes four extrusion parts, and the processing area formed by splicing the extrusion parts is in the shape of a rectangular window as a whole.

A hot-pressing device provided in this application includes multiple groups of extrusion mechanisms and mounting plates, and the combined processing area of the extrusion parts of each group of extrusion mechanisms in the traveling direction of the workpiece is polygonal, or each group of extrusion mechanisms is a polygon. The combined processing area of the extrusion parts of the pressing mechanism along the traveling direction of the processed workpiece is any opposite two sides of a virtual regular polygon, and the relative rotation angles between the extrusion mechanisms are all different or partially different. The extrusion mechanism is composed of an extrusion part and an elastic support. When the workpiece enters the polygonal window-shaped extrusion mechanism, each extrusion mechanism will produce corresponding elastic deformation according to the shape of the workpiece due to the elasticity of the elastic support. Tightly press the workpiece to be processed, so that the wrapping and hot melt adhesive on the contact surface of the workpiece and the extrusion part are heated and extruded, and tightly fit the workpiece, so as to avoid the distortion of the workpiece or the large dimensional tolerance of the workpiece. Press processing. In addition, each group of polygonal window-shaped extrusion mechanisms has different relative rotation angles, which can cover the surface of the workpiece that needs to be hot-pressed in all directions, further ensure the comprehensiveness of hot-pressing processing of the workpiece, and effectively improve the processing quality. .

Description of drawings

1 is an overall structural diagram of a hot pressing device in an embodiment of the present application;

2 is an overall structural diagram of another station of the hot pressing device in an embodiment of the present application;

3 is a cross-sectional view of an elastic support member in an embodiment of the present application.

The realization, functional characteristics and advantages of the purpose of the present application will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

Referring to FIG. 1 and FIG. 2 , an embodiment of the present application provides a hot pressing device, comprising a mounting plate 1 and at least one set of pressing mechanisms, the pressing mechanism 2 includes a pressing member 21 and an elastic supporting member 22 , One end of the elastic support member 22 is connected with the extrusion member 21, and the other end is fixed on the mounting plate 1;

The extrusion part 21 is used for pressing and processing the workpiece, and a heating device is provided inside;

The combined processing area of the extrusion members 21 of each group of the extrusion mechanisms 2 along the travel direction of the workpiece is polygonal, or the extrusion members 21 of each group of the extrusion mechanism 2 are in the travel direction of the workpiece. The processing area after the above combination is any opposite two sides of a virtual regular polygon, the virtual regular polygon is an even number of sides, and the relative rotation angles between the extrusion mechanisms 2 are all different or partially different.

In this embodiment, the hot pressing device includes a plurality of groups of extrusion mechanisms and a mounting plate 1 , and each group of extrusion mechanisms is installed in a sequence of preset stations, all of which are fixed on the mounting plate 1 . Specifically, each group of extrusion mechanisms 2 is set according to a preset station, and the combined processing area of the extrusion parts of each group of extrusion mechanisms 2 in the traveling direction of the workpiece is a polygon as a whole, such as a rectangular polygon window, a regular six polygonal windows, etc. Or the combined processing area of the extrusion parts of the extrusion mechanism 2 along the traveling direction of the processed workpiece is any opposite two sides of a virtual regular polygon. Preferably, in practical implementation, the combined processing area of the extrusion parts of a single group of extrusion mechanisms can be any opposite sides of a polygon or a virtual regular polygon, thereby reducing the number of stations and improving the processing efficiency of the hot pressing process. The virtual regular polygon is an even-numbered side, such as a regular quadrilateral, a regular hexagon, and the like. The distance between the extrusion members 21 on the opposite sides of the extrusion mechanism 2 is smaller than the length of the corresponding side of the workpiece, so that the workpiece will be stretched because the size is larger than the distance between the two opposite extrusion members 21 after entering the extrusion mechanism 2. Extrusion mechanism 2, the extrusion mechanism 2 can generate extrusion force on the surface of the processed workpiece. Preferably, the extrusion members 21 of each group of extrusion mechanisms 2 may be parallel to each other, or may not be parallel to each other. Specifically, it is necessary to set corresponding stations according to the shape of the workpiece to be processed. For example, if the workpiece to be processed is linear as a whole, the extrusion members 21 of each group of extrusion mechanisms 2 are arranged around the workpiece to be processed, and the extrusion members 21 are parallel to each other. If the workpiece to be processed has a certain curvature or twist, the angle of the extrusion part 2 needs to be adjusted according to the arc or twisted area, so that the extrusion surface of the extrusion part 2 faces the surface of the workpiece to be processed to realize the hot pressing process. The relative rotation angles between each group of extrusion mechanisms 2 are different, wherein the relative rotation angle refers to the relative rotation angle between two adjacent extrusion mechanisms 2. For example, the stations of extrusion mechanism A are sorted in extrusion mechanism B. Previously, the extrusion mechanism B was rotated 30 degrees relative to the extrusion mechanism A at the center point, and the relative rotation angle between the extrusion mechanism A and the extrusion mechanism B was 30 degrees. Each group of extrusion mechanisms 2 at different stations has different rotation angles, so that the hot pressing device as a whole has more angular hot pressing surfaces, thereby ensuring full coverage of the hot pressing surface of the processed workpiece. Each group of extrusion mechanisms 2 includes at least one extrusion element 21 , and the relative rotation angles of extrusion mechanisms 2 at different stations are different, so that the overall processing area along the traveling direction of the processed workpiece is any opposite two sides of a polygon or a virtual regular polygon . The extrusion mechanism 2 includes an extrusion member 21 and an elastic support member 22, wherein the extrusion member 21 is used for pressing and processing the workpiece, and a heating device, such as an electric heating rod, is provided inside. The elastic support member 22 is used to support the extrusion member 21 , such as a spring 223 , one end is fixedly connected with the extrusion member 21 , and the other end is fixed on the mounting plate 1 . When the workpiece is squeezed into the extrusion mechanism 2, since the extrusion member 21 is elastically supported, the extrusion member 21 will be pushed away by the workpiece. At the same time, due to the action of the elastic support member 22, the extrusion member 21 will press the surface of the workpiece tightly, and the wrapping and hot melt glue covering the surface of the workpiece will be heated and squeezed, and the workpiece will pass through the polygon at a certain speed as the workpiece is processed. The window-shaped extrusion device realizes the tight combination of the wrapping and the hot melt adhesive with the surface of the workpiece to complete the hot pressing. The processed workpiece passes through the extrusion mechanisms of each station in turn, and each group of extrusion mechanisms 2 with different relative rotation angles can cover the surface of the processed workpiece in all directions, thereby completing the entire hot pressing process.

Further, the extrusion member 21 is a roller, the roller includes a roller body and a rolling shaft, the roller body is sleeved on the rolling shaft, the roller body is rolled relative to the rolling shaft, and the rolling Both ends of the shaft are respectively fixedly connected to the elastic support member 22 .

In this embodiment, the extrusion member 21 is a roller, and the roller includes a roller body and a rolling shaft. The drum body has a cylindrical structure and is sleeved on the rolling shaft, so that the drum body can roll relative to the rolling shaft. Both ends of the rolling shaft are fixedly connected to the elastic support member 22 respectively, so as to realize the integral fixation of the extrusion member 21 . When the workpiece to be processed enters the extrusion mechanism 2, the extrusion member 21 tightly presses the surface of the workpiece to be processed. As the processed workpiece travels at a certain speed, the drum body rolls relative to the rolling axis, and the hot pressing of the surface of the processed workpiece is completed during the rolling process. Since the roller body can perform rolling motion, the friction between the roller body and the surface of the workpiece can be reduced, so that the workpiece has less resistance and smoother when passing through the extrusion mechanism.

Further, the drum body is made of elastic material.

In this embodiment, the drum body is made of elastic material, and the whole can produce a certain degree of elastic deformation. When the extrusion part 21 hot-presses the surface of the workpiece, if the surface of the workpiece has some pit marks due to poor machining accuracy or transportation scratches, after the roller body made of elastic material contacts these pit marks, it will be The pressing force produces a certain elastic deformation, so that the area of the drum body corresponding to the pothole marks can still produce the same amount of pressing force on the pothole marks as the rest of the flat area, so that the wrapping and hot melt adhesive in the pothole marks area of the workpiece are processed. It can also be tightly attached to the surface of the pothole marks after hot pressing.

Further, the heating device is an electric heating pipe, and the electric heating pipe is embedded inside the rolling shaft along the axial direction.

In this embodiment, the heating device may be an electric heating pipe, and a cavity corresponding to the size and shape of the electric heating pipe is opened inside the rolling shaft along the axial direction. The electric heating tube is embedded inside the rolling shaft along the axial direction, starts to heat after the hot pressing device is activated, and transfers the heat to the extrusion part 21 through the rolling shaft. Since the electric heating tube is deployed along the axial direction of the rolling axis, the heat transfer can be made more uniform during the heating process, and the quality of the hot pressing process can be improved.

In another embodiment, an elastic layer is laid on the surface of the extrusion member 21 contacting the workpiece to be processed, and the elastic layer is entirely made of elastic material; further, the elastic material is rubber or silica gel.

In this embodiment, an elastic layer is laid on the surface of the extrusion part 21 that contacts the workpiece to be processed, and the elastic layer is made of elastic material as a whole, so that when the extrusion part 21 squeezes the workpiece, the The surface is capable of producing a certain degree of elastic deformation. Further, the elastic material can be rubber or silica gel, which can withstand a hot pressing temperature of 100-200°C while having elastic deformation. When the extrusion part 21 hot-presses the workpiece, if the surface of the workpiece has pit marks, the elastic layer on the surface of the extrusion part 21 will be deformed due to the pressure in the area corresponding to the pot mark, so that the elastic layer sinks into the pit. In the pit mark, the pressing force generated by the extrusion piece 21 in the pot mark area is the same as the pressing force in the flat area of the workpiece surface. Therefore, the wrapping and hot melt adhesive on the surface of the workpiece can be tightly attached to the surface of the pothole marks after hot pressing, effectively ensuring the overall hot pressing quality of the workpiece.

Further, referring to FIG. 3 , the elastic support member 22 includes an outer tube 221, an inner lever 222 and a spring 223, the outer tube 221 is a hollow tubular shape, and the outer tube 221 is sleeved outside the inner lever 222, so The outer tube 221 is provided with a limiting structure for restricting the inner lever 222 from being separated from the outer tube 221;

The spring 223 is disposed inside the outer tube 221 , one end of the spring 223 abuts one end of the inner rod 222 for supporting the inner rod 222 , and the other end abuts against the inner wall of the outer tube 221 .

In this embodiment, the elastic support member 22 includes an outer tube 221, an inner lever 222 and a spring 223, wherein the outer tube 221 is a hollow tubular shape, and the inner lever 222 can be a solid rod body or a hollow tubular shape. The outer tube 221 is sleeved outside the inner bar 222 , so the inner bar 222 can perform telescopic movement relative to the outer tube 221 . Further, the outer tube 221 is provided with a limiting structure, and the limiting structure is used to restrict the inner lever 222 from being separated from the outer tube 221 as a whole when the inner lever 222 performs telescopic movement in the outer tube 221 . The spring 223 is disposed inside the outer tube 221 , one end abuts an end of the inner lever 222 , and the other end of the spring 223 abuts against the bottom inner wall of the outer tube 221 , thereby forming elastic support for the inner lever 222 . Moreover, since the spring 223 is integrally disposed in the outer tube 221, the shape of the outer tube 221 can effectively ensure that the elastic deformation of the spring 223 is only maintained in the axial direction, and the spring 223 will not be bent. When the workpiece is squeezed into the extrusion mechanism 2, the spring 223 is compressed to produce corresponding elastic deformation, so that the inner lever 222 is partially retracted into the outer tube 221, and the overall length of the elastic support 22 is changed, thereby making the entire extrusion mechanism 2. The corresponding polygon window size can be changed according to the size of the workpiece to be processed, and due to the elastic force of the spring 223, the pressing mechanism 2 can maintain the pressing force on the surface of the workpiece to be processed to complete the hot pressing process.

Further, the end of the outer tube 221 away from the inner lever 222 is provided with a first mounting portion, the other end of the inner lever 222 is provided with a second mounting portion, and the outer tube 221 passes through the first mounting portion Being fixed on the mounting plate 1 , the inner lever 222 is fixedly connected to the extrusion member 21 through the second mounting portion.

In this embodiment, the end of the outer tube 221 away from the inner lever 222 is provided with a first mounting portion, and the other end of the inner lever 222 is provided with a second mounting portion. The outer tube 221 is fixed on the mounting plate 1 through the first mounting part, and the inner rod 222 is fixedly connected with the extrusion part 21 through the second mounting part. Specifically, the first installation portion may be a fixing plate with screw holes, and the fixing plate is welded and fixed to the end of the inner lever 222 . The mounting plate 1 is correspondingly provided with screw holes. During installation, the production personnel align the screw holes of the fixing plate with the screw holes on the mounting plate 1, and use bolts matching the screw holes for fixing. The inner lever 222 may be provided with a through hole or a screw hole at the other end that matches the rolling shaft as a second mounting portion, and the end of the rolling shaft is provided with an external thread. When installing, the production personnel pass the end of the rolling shaft through the second installation part, and screw in a nut matching the external thread of the end of the rolling shaft, so as to fix the inner rod 222 and the rolling shaft to each other.

Further, the hot pressing device further includes a clamping mechanism, which is used for clamping and transporting the workpiece to be processed, and the clamping mechanism is fixed on the mounting plate 1 .

In this embodiment, the hot pressing device further includes a clamping mechanism, which can be a mechanical arm, for clamping and transporting the processed workpiece, so that the processed workpiece moves continuously after entering the extrusion mechanism to complete the hot pressing process. The clamping mechanisms are fixedly mounted on the mounting plate 1, preferably in pairs. Each pair of clamping mechanisms is separated on both sides of the extrusion mechanism to ensure the clamping balance.

Further, a set of the extrusion mechanisms 2 includes four extrusion parts 21 , and the processing area body formed by splicing the extrusion parts 21 is in the shape of a rectangular window.

In this embodiment, a set of extrusion mechanisms is preferably composed of four extrusion members 21 , and the four extrusion members 21 are arranged opposite to each other, and the extrusion area formed by splicing is in the shape of a rectangular window as a whole. The extrusion mechanism 2 is arranged in the shape of a rectangular window, which can facilitate the installation and splicing of the production personnel, and at the same time, the extrusion mechanism 2 in the shape of a rectangular window can be suitable for processing workpieces of most shapes.

A hot-pressing device provided in this embodiment includes multiple groups of extrusion mechanisms and a mounting plate 1, and the combined processing area of the extrusion members 21 of each group of extrusion mechanisms 2 in the traveling direction of the workpiece is polygonal, or The combined processing area of the extrusion members 21 of each group of extrusion mechanisms 2 along the traveling direction of the workpiece is any opposite side of a virtual regular polygon, and the relative rotation angles between the extrusion mechanisms 2 are different or partially different. The extrusion mechanism 2 is composed of an extrusion member 21 and an elastic support member 22. When the workpiece to be processed enters the polygonal window-shaped extrusion mechanism 2, each extrusion mechanism 2 will be generated according to the shape of the workpiece due to the elasticity of the elastic support member 22. Corresponding elastic deformation, and pressing the workpiece tightly, so that the wrapping and hot-melt adhesive on the contact surface of the workpiece and the extrusion part 21 are heated and extruded, and tightly fit with the workpiece, so as to avoid the distortion of the workpiece. or large dimensional tolerances and cannot be hot-pressed. In addition, each group of polygonal window-shaped extrusion mechanisms 2 has different relative rotation angles, which can cover the surface of the workpiece that needs to be hot-pressed in all directions, further ensure the comprehensiveness of hot-pressing processing of the workpiece, and effectively improve the machining process. quality.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, apparatus, article or method comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, apparatus, article or method. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, apparatus, article, or method that includes the element.

The above are only the preferred embodiments of the present application, and are not intended to limit the scope of the patent of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present application, or directly or indirectly applied to other related The technical field is similarly included in the scope of patent protection of this application.

Claims (10)

1. A hot pressing device, characterized in that it comprises a mounting plate and at least one group of pressing mechanisms, wherein the pressing mechanism comprises a pressing member and an elastic support member, and one end of the elastic support member is connected with the pressing member , and the other end is fixed on the mounting plate; The extrusion part is used for pressing and processing the workpiece, and a heating device is arranged inside; The processing area after the extrusion parts of each group of the extrusion mechanisms are combined in the traveling direction of the workpiece to be processed is a polygon, or the extrusion parts of each group of the extrusion mechanisms are combined in the traveling direction of the workpiece to be processed. The processing area is any opposite two sides of a virtual regular polygon, the virtual regular polygon is an even-numbered side, and the relative rotation angles between the extrusion mechanisms are all different or partially different. 2 . The hot pressing device according to claim 1 , wherein the pressing member is a roller, the roller comprises a roller body and a rolling shaft, the roller body is sleeved on the rolling shaft, and the The roller body is rolled relative to the rolling shaft, and both ends of the rolling shaft are respectively fixedly connected to the elastic support. 3 . The hot pressing device according to claim 2 , wherein the drum body is made of elastic material. 4 . 4 . The hot pressing device according to claim 2 , wherein the heating device is an electric heating pipe, and the electric heating pipe is embedded inside the rolling shaft along the axial direction. 5 . 5 . The hot pressing device according to claim 1 , wherein an elastic layer is laid on the surface of the extrusion part that contacts the workpiece to be processed, and the entire elastic layer is made of elastic material. 6 . 6. The hot pressing device according to claim 3 or 5, wherein the elastic material is rubber or silicone. 7 . The hot pressing device according to claim 1 , wherein the elastic support member comprises an outer tube, an inner lever and a spring, the outer tube is in the shape of a hollow tube, and the outer tube is sleeved on the inner lever. 8 . In addition, the outer tube is provided with a limiting structure, which is used to restrict the inner lever from being separated from the outer tube; The spring is arranged inside the outer tube, one end of the spring abuts against one end of the inner bar for supporting the inner bar, and the other end abuts against the inner wall of the outer tube. 8 . The hot pressing device according to claim 7 , wherein the end of the outer tube away from the inner rod is provided with a first mounting portion, and the other end of the inner rod is provided with a second mounting portion, so the The outer tube is fixed on the mounting plate through the first mounting part, and the inner rod is fixedly connected with the extrusion part through the second mounting part. 9 . The hot pressing device according to claim 1 , wherein the hot pressing device further comprises a clamping mechanism, the clamping mechanism is used for clamping and transporting the processed workpiece, and the clamping mechanism is fixed. 10 . on the mounting plate. 10 . The hot pressing device according to claim 1 , wherein a group of the pressing mechanisms comprises four pressing parts, and the processing area formed by splicing the pressing parts is in the shape of a rectangular window as a whole. 11 .

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