CN105984155B

CN105984155B - Dabber is fixed and adjusting device

Info

Publication number: CN105984155B
Application number: CN201510093022.1A
Authority: CN
Inventors: 陈湛; 周志平; 李志江; S·托雷斯; 艾斌
Original assignee: Covestro Deutschland AG
Current assignee: Covestro Deutschland AG
Priority date: 2015-02-17
Filing date: 2015-02-17
Publication date: 2020-07-10
Anticipated expiration: 2035-02-17
Also published as: CN105984155A

Abstract

The invention relates to a mandrel fixing and adjusting device (10). The device includes: the mandrel fixing and adjusting device comprises a die frame or a base (1) for supporting a mandrel fixing and adjusting device (10), a mandrel jacket (7) with a mandrel (8) integrated therein, adjusting guide devices (2 and 4), position adjusting devices (3 and 6) and an adjusting and locking device (9). The position adjusting devices (3 and 6) are respectively fixed on the mandrel jacket (7) along the transverse axis and the longitudinal axis of the cross section of the mandrel, and the positions of the mandrel jacket (7) and the mandrel (8) are adjusted by adjusting the relative position of the mandrel jacket (7) and the die carrier (1) in a thread rotating feeding mode. The invention also relates to a system for manufacturing a product with a cavity, equipped with a mandrel fixing and adjusting device (10) as described above, to a method for operating such a system and to a product obtained with such a method.

Description

Dabber is fixed and adjusting device

Technical Field

The invention relates to a mandrel fixing and adjusting device, in particular to a mandrel fixing and adjusting device used in a manufacturing process of a pultruded product with a cavity. The invention also relates to an operation method of the manufacturing system of the product with the cavity, which is provided with the mandrel fixing and adjusting device and is suitable for the manufacturing process of the pultruded product with the cavity.

Background

A substantial portion of the article in a pultruded article is provided with one or more cavities. Pultruded products with a cavity require the use of not only a die, but also a mandrel and corresponding fiber impregnation system during production. Therefore, the conventional system for manufacturing the product with the cavity adopts a mandrel fixing and adjusting device to adjust the position of the mandrel.

Fig. 1 shows a typical prior art system for manufacturing a molded article with a cavity, which includes a mandrel fixing and adjusting device 105, a fiber impregnation system 102, and a mold 101. The mandrel holding and adjusting device 105, the fiber impregnation system 102 and the mold 101 are each securely connected to the mold frame 103 by at least one fastener. In operation of the system, the mandrel 107, after passing through the mandrel fixing and adjusting device 105, continues to extend through the fibre impregnation system 102 and finally to the interior of the mould 101, so that the resin impregnated fibres solidify into a profiled product in the cavity formed by the mandrel 107 and the inner wall of the mould 101. At least one locking screw 106 is also arranged at the tail part of the mandrel 107 to prevent the mandrel 107 from being pulled off due to the action of external force in the production process.

In the embodiment shown in fig. 1, the mandrel fixing and adjusting device comprises two adjusting plates 105 and sixteen adjusting screws 104. Two regulating plates 105 are arranged in parallel and at a certain distance from each other along the mould frame 103, and each regulating plate 105 is provided with eight regulating screws 104 which are divided into four groups, and each group is provided with two regulating screws 104. They are respectively disposed in four directions of up, down, left, and right around the position where the spindle 107 passes through each adjusting plate 105 to adjust the position of the spindle 107 in the vertical or horizontal direction.

For example, in chinese utility model patent CN03209637.2, a die core positioning and supporting device for pultrusion is disclosed, wherein the one end of die cavity connecting block is connected with the one end of four steel-pipe columns, die cavity connecting block and die cavity pass through die carrier fixed screw and pass four horizontal waist holes on the die cavity connecting block and the screw hole of the processing on the relevant position die cavity and be connected, the die core connecting block is connected with the other end of processing screwed on the steel-pipe column through four holes of location on it, and fixed through eight spacing adjusting nuts, the die core passes through the die core set screw with the die core connecting block and is connected on die core installation fixed block. It can be seen that the core positioning and supporting device for pultrusion disclosed in the utility model has a structure substantially similar to that of the core fixing and adjusting device shown in fig. 1.

However, the spindle fixing and adjusting device provided as above has a disadvantage of complicated operation steps. When the position of the mandrel is adjusted each time, an operator firstly loosens at least four adjusting screws in the horizontal or vertical direction to perform the subsequent adjusting operation. In the adjusting process, because the relative positions of the mandrel or the fixing device thereof and other adjusting screws are changed, the original tight fit of the mandrel or the fixing device thereof and other adjusting screws may loosen, so that all the adjusting screws need to be screwed again after the adjustment is finished, and the position of the mandrel or the fixing device thereof which is originally adjusted in place may be changed again in the adjusting process. Thus, on the one hand, the mandrel is difficult to adjust quickly and accurately to the desired position, and on the other hand, due to the numerous points of association for fixing the mandrel position, fluctuations in the wall thickness of the pultruded profile can easily occur during the actual production process.

Therefore, there is a need to develop an improved mandrel fixing and adjusting device, which can quickly and accurately adjust a mandrel to a desired position and can stably fix the mandrel.

Disclosure of Invention

The invention aims to provide an improved mandrel fixing and adjusting device which can quickly and accurately adjust a mandrel to a desired position and can firmly fix the mandrel.

Another object of the present invention is to provide a method of operating a system for manufacturing a product with a cavity equipped with a mandrel fixing and adjusting device as described above, by which the position of the mandrel can be adjusted automatically.

A first aspect of the present invention relates to a mandrel fixing and adjusting apparatus, the apparatus comprising: the mandrel clamping device comprises a die set or a base for supporting a mandrel fixing and adjusting device, a mandrel clamping sleeve with a mandrel integrated inside, an adjusting and guiding device, a position adjusting device and an adjusting and locking device, wherein the position adjusting device is fixed on the mandrel clamping sleeve along the transverse axis and the longitudinal axis of the cross section of the mandrel respectively, and the positions of the mandrel clamping sleeve and the mandrel are adjusted by adjusting the relative positions of the mandrel clamping sleeve and the die set in a thread rotating and feeding mode.

The position adjusting device can move the mandrel clamping sleeve along the direction of the transverse shaft or the longitudinal shaft by adjusting the position adjusting device at any position on the transverse shaft or the longitudinal shaft every time and keeping other position adjusting devices unchanged by means of a thread rotating feeding mode. Then, another position adjusting device is adjusted to move the mandrel clamp sleeve to a desired position along the longitudinal axis or the transverse axis.

Preferably, one end of the mandrel may be retained within the mandrel collet and in a fixed position relative to the mandrel collet.

In a preferred embodiment, the adjusting guide means may include a horizontal guide rail and a vertical guide bar, the position adjusting means includes a horizontal position adjusting screw passing through a mold frame connection pipe or a connection plate connected to the mold frame and a vertical position adjusting screw passing through the horizontal guide rail, the adjusting and locking means includes a first pair of adjusting nuts provided for the horizontal position adjusting screw and a second pair of adjusting nuts provided for the vertical position adjusting screw, one of the first and second pairs of adjusting nuts is installed inside the mold frame connection pipe and the horizontal guide rail, respectively, and the other adjusting nut is installed outside the mold frame connection pipe and the horizontal guide rail, respectively.

More preferably, the horizontal guide rail and the die carrier connecting pipe can be respectively provided with a horizontal guide chute and a vertical guide chute for the vertical position adjusting screw rod and the horizontal position adjusting screw rod to slide in, wherein the chute width of the horizontal guide chute and the vertical guide chute can be smaller than the diameter of the adjusting nut, and the horizontal position adjusting screw rod and the vertical position adjusting screw rod can be ensured to slide linearly along the vertical guide chute and the horizontal position chute without shaking.

In addition, a device for rotating and fixing the mandrel in the mandrel clamping sleeve can be arranged in the mandrel clamping sleeve.

In another preferred embodiment of the invention, the inside of the mandrel holder or the part of the mandrel inside the mandrel holder may be formed with an annular protrusion or at least three spherical protrusions perpendicular to the length direction of the mandrel, so that the mandrel holder and the mandrel are positioned with respect to each other in a line contact or a multi-point contact, thereby adjusting the mandrel in the mandrel holder.

Further, the adjusting guides may be associated with the mold frame, the mold frame connection pipe, and the mandrel holder so as to be linearly moved in the direction of one of the adjusting guides by only one of the position adjusting means without shaking. In this way the position of the mandrel collet and mandrel will be adjusted.

Further, the horizontal position-adjusting screw rod and the vertical position-adjusting screw rod may be fixed to the mandrel holder by welding or by means of flanges.

More preferably, the mandrel may be provided at its trailing end with a mandrel rotation adjustment lock which adjusts the angular position of the mandrel relative to the mandrel holder by twisting the mandrel and which locks the mandrel against further rotation in the mandrel holder after adjustment.

A second aspect of the invention relates to a system for manufacturing a product with a cavity equipped with at least one mandrel fixing and adjusting device as described above, the system further comprising a mould, the mandrel fixing and adjusting device and the mould being connected to a mould carrier.

Preferably, the mandrel passing through the mandrel fixing and adjusting device may continue to extend through the die so that the resin impregnated fibers solidify into a shape within the cavity formed by the mandrel and the inner wall of the die.

More preferably, the die may be connected to a fiber impregnation system, such as at the entrance of the die.

In a preferred embodiment of the present invention, the resin may be a thermosetting resin or a thermoplastic resin, the thermosetting resin includes, but is not limited to, at least one of thermosetting polyurethane, epoxy resin, vinyl resin, phenolic resin, cyanate ester resin and unsaturated resin, or modified resin or blended resin thereof, and the thermoplastic resin may include, but is not limited to, at least one of thermoplastic polyurethane, polycarbonate, polypropylene, polyvinyl chloride, polyethylene, polyester, nylon, or modified resin or blended resin thereof.

Additionally, the fibers include, but are not limited to, at least one of glass fibers, carbon fibers, and basalt fibers, or a combination thereof. Alternatively, the fibers are organic fibers including, but not limited to, at least one of polyester fibers, nylon fibers, polyvinyl chloride fibers, and acrylic fibers, or combinations thereof. Still alternatively, the fibers are natural fibers including, but not limited to, at least one of flax, sisal, jute, cotton fibers, or combinations thereof.

Preferably, the system for manufacturing a cavity-bearing article may further comprise a power device associated with the position adjustment device to power the position adjustment device. The power device may be an electric motor or a hydraulic drive.

In addition, the system for manufacturing the product with the cavity can further comprise a detection device which is arranged at the inlet of the die and used for detecting and feeding back the position of the mandrel or the position of the outlet of the die and used for detecting and feeding back the wall thickness deviation of the section, wherein the detection device can perform measurement by means of physical methods such as laser or ultrasonic waves.

When the manufacturing system of the product with the cavity is provided with a plurality of mandrel fixing and adjusting devices, the mandrel fixing and adjusting devices can be arranged along the front and back directions of the mandrels, and the included angle of the mandrels relative to the central axis of the mold cavity can be changed by respectively adjusting the positions of the mandrel clamping sleeves above the mandrel fixing and adjusting devices.

In addition, the tail end of the mandrel can be provided with a locking mechanism which can enable the mandrel to rotate and can lock the mandrel after the mandrel rotates.

More preferably, the system for manufacturing a product with a cavity further comprises a dial arranged at the position of the adjusting and locking device at the connecting pipe or the horizontal guide rail of the die carrier, and used for recording the position information of the mandrel.

The third aspect of the invention also relates to a method of operating a system for manufacturing a product with a cavity equipped with a mandrel fixing and adjusting device as described above, comprising the steps of:

(a) introducing the mandrel into a mandrel fixing and adjusting device;

(b) holding one end of the mandrel inside the mandrel jacket and in a fixed position relative to the mandrel jacket;

(c) extending the other end of the mandrel from the mandrel jacket and through the die;

(d) detecting the position of the mandrel or the wall thickness deviation of the section bar through a detection device and feeding back to the mandrel fixing and adjusting device;

(e) the positions of the mandrel jacket and the mandrel are adjusted through a position adjusting device; and

(f) repeating steps (d) and (e) above until the mandrel is adjusted to the desired position.

A fourth aspect of the invention relates to a product obtained by the method of operation of the system for manufacturing a product with a cavity, wherein the product is preferably a hollow profile for a window and door curtain wall frame, a solar panel frame and support, an insulating ladder frame, a pipe.

Compared with the prior art, the mandrel fixing and adjusting device and the manufacturing system of the product with the cavity, which is provided with the mandrel fixing and adjusting device, have the following advantages:

(1) the mandrel fixing and adjusting device disclosed by the invention is integrated with the mandrel by adopting the mandrel jacket. In this way, the traditional multi-point adjustment of the mandrel jacket is replaced by a single-point adjustment by screwing in and out through a threaded fit. When adjusting one direction, the other positions are kept fixed, so that the adjustment can be performed quickly, stably and accurately, and meanwhile, the position of the mandrel can be automatically adjusted through mandrel position or profile wall thickness deviation information feedback. Meanwhile, the position after adjustment is simply fixed by adopting a double-nut locking mode.

(2) The manufacturing system of the product with the cavity has the advantages that on one hand, the position of the mandrel is detected at the inlet of the die or the wall thickness deviation of the detected section bar is arranged at the outlet of the die and fed back to the detection device of the mandrel fixing and adjusting device, and on the other hand, the position adjusting device is associated with the power device, so that the real-time automatic adjustment of the position of the mandrel in the production process is realized.

Drawings

To further illustrate the structure and advantages of the mandrel fixing and adjusting device and the system for manufacturing a cavity-carrying product equipped with the same according to the present invention, the same will be described in detail with reference to the accompanying drawings and specific embodiments, in which:

FIG. 1 is a side view of a system for manufacturing a molded article with a cavity provided with a conventional mandrel fixing and adjusting device;

FIG. 2 is an elevation view of a first embodiment of a system for manufacturing a molded article with a cavity provided with a mandrel fixing and adjusting device of the present invention;

FIG. 3 is a top view of a first embodiment of a system for manufacturing a molded article with a cavity provided with a mandrel fixing and adjusting device of the present invention;

FIG. 4 is a side view of a first embodiment of a system for manufacturing a molded article with a cavity provided with a mandrel fixing and adjusting device of the present invention;

FIG. 5 is a side view of a second embodiment of a molded article manufacturing system provided with a mandrel fixing and adjusting device of the present invention, similar to FIG. 4 but omitting the glue injection cartridge that forms the fiber impregnation system, wherein the fibers are not impregnated with the glue injection cartridge connected to the inlet of the mold, but are impregnated prior to entering the mold through the mandrel fixing and adjusting device of the present invention;

FIG. 6 is a side view of a third embodiment of a chambered article manufacturing system having a mandrel fixing and adjusting apparatus of the present invention, similar to that of FIG. 4 but wherein the chambered article manufacturing system is provided with two identical mandrel fixing and adjusting apparatuses;

FIG. 7 is an enlarged schematic view of the tail structure of the mandrel collet provided with the mandrel rotation adjustment lock; and

FIG. 8 is a side view of a fourth embodiment of a system for manufacturing a molded article with a cavity provided with a mandrel fixing and adjusting device of the present invention.

Detailed Description

A preferred embodiment of the mandrel fixing and adjusting device 10 of the present invention will be described below with reference to fig. 2 to 7.

Fig. 2 shows a front view of a preferred embodiment of the mandrel fixing and adjusting device 10 of the present invention assembled in a cavity-bearing article manufacturing system.

As shown in fig. 2, the mandrel fixing and adjusting device 10 has two die carrier connecting pipes 5 respectively arranged on the left and right sides thereof, and two die carriers 1 respectively traverse the horizontal guide rail 2 along a direction perpendicular to the drawing plane of fig. 2 on the upper and lower sides of each die carrier connecting pipe 5. That is, in the mandrel fixing and adjusting device 10 shown in fig. 2, two die set connecting pipes 5 and four die sets 1 are provided in total. Of course, the above-described formwork connection pipe can also be replaced by a connection plate, a connection profile or any suitable hollow or solid connection structure by those skilled in the art, and these variations are well known in the art.

The mandrel fixing and adjusting device 10 comprises a mandrel clamping sleeve 7, adjusting guide devices 2 and 4, position adjusting devices 3 and 6 and an adjusting locking device 9. In a preferred embodiment of the present invention, the adjusting guide means includes a horizontal guide rail 2 and a vertical guide rod 4, and the position adjusting means includes a horizontal position adjusting screw 6 and a vertical position adjusting screw 3. As can be seen in fig. 4, one end of the mandrel 8 is held inside the mandrel jacket 7 and in a fixed position relative to the mandrel jacket 7, while the other end extends out of the mandrel jacket 7 and, after passing through the fibre impregnation system 13, into the mould 14, so that the resin impregnated fibres solidify into a profile in the cavity formed by the mandrel and the inner wall of the mould. The horizontal guide rail 2 is fastened on the die carrier connecting pipe 5, and the vertical guide rod 4 passes through the horizontal guide sliding groove 11 on the horizontal guide rail 2 and is fixed after passing through the mandrel clamping sleeve 7. With this arrangement, the mandrel holder 7 is movable, on the one hand, along the vertical guide bar 4 by means of the vertical position adjustment screw 3 together with the horizontal position adjustment screw 6, so as to adjust its position in the vertical direction, and, on the other hand, along the horizontal guide rail 2 by means of the horizontal position adjustment screw 6 together with the vertical guide bar 4 and the vertical position adjustment screw 3, so as to adjust its position in the horizontal direction. As shown in fig. 2, the vertical position adjusting screw 3 is an elongated screw member which passes through a horizontal guide chute 11 on the horizontal guide rail 2 and is attached to the mandrel holder 7, and the position of the vertical position adjusting screw 3 relative to the horizontal guide rail 2 is locked by adjusting the locking device 9. Similarly, the horizontal position-adjusting screw 6 is also an elongated screw member which passes through a vertical guide chute 12 of the mold frame connection pipe 5 and is connected to the mandrel holder 7, and the position of the horizontal position-adjusting screw 6 relative to the mold frame connection pipe 5 is locked by the adjustment locking device 9.

In this embodiment, the horizontal guide rails 2 and the vertical guide rods 4 are arranged in pairs, and the function of the guide rails is to make the mandrel clamping sleeve 7 move linearly without shaking in the adjusting and moving process. However, it is well known to those skilled in the art that other numbers and kinds of guiding mechanisms may be provided depending on the specific size of the mandrel collet 7 to obtain the same technical effect.

In the present embodiment, the horizontal position adjusting screw 6 and the vertical position adjusting screw 3 adjust the positions of the mandrel holder 7 and the mandrel 8 by adjusting the relative positions of the mandrel holder 7 and the die carrier 1 in a screw rotation feeding manner. The "screw rotation feeding manner" will be specifically described below.

The horizontal position-adjusting screw rod 6 and the vertical position-adjusting screw rod 3 pass through a vertical guide chute 12 and a horizontal guide chute 11 formed on the mold frame connection pipe 5 and the horizontal guide rail 2 fixed to the mold frame 1, respectively, and are fastened (e.g., welded) to the mandrel holder 7. The horizontal position adjusting screw 6 is provided with a first pair of adjusting nuts 9a, 9b, one of which 9b is mounted on the inside of the formwork connection pipe 5 and the other of which 9a is mounted on the outside of the formwork connection pipe 5. Similarly, the vertical position adjustment screw 3 is provided with a second pair of adjustment nuts 9a ', 9 b', wherein one adjustment nut 9b 'is mounted on the inside of the horizontal guide rail 2 and the other adjustment nut 9 a' is mounted on the outside of the horizontal guide rail 2. The die carrier connecting pipe 5 and the horizontal guide rail 2 are respectively provided with a horizontal guide chute 11 (see fig. 3) and a vertical guide chute 12 (see fig. 4) for the horizontal position adjusting screw rod 6 and the vertical position adjusting screw rod 3 to slide in.

Preferably, the chute widths of the horizontal guide chute 11 and the vertical guide chute 12 may be smaller than the diameter of the adjustment nut. The purpose that the width of the sliding groove is smaller than the diameter of the adjusting nut is to enable the die carrier connecting pipe and the horizontal guide rail to block the adjusting nut, so that the adjusting nut is prevented from penetrating through the sliding groove. Generally, the width of the sliding groove is equal to the diameter of the adjusting screw rod, so that the adjusting screw rod can be ensured to slide linearly along the sliding groove without shaking.

When it is desired to move the mandrel holder 7 rightward, such as in the horizontal direction, the horizontal inner adjusting nut 9b provided for the horizontal position adjusting screw 6 and fitted inside the mold frame connecting pipe 5 is first unscrewed inward so that the horizontal inner adjusting nut 9b moves inward along the horizontal position adjusting screw 6 by an amount slightly larger than the amount by which the mandrel holder 7 is desired to move. Then, a horizontal outer adjusting nut 9a provided for the horizontal position adjusting screw 6 and installed outside the mold frame connecting pipe 5 is screwed inward, and due to the blocking of the mold frame connecting pipe 5, the horizontal outer adjusting nut 9a can only rotate but cannot move inward, so that the horizontal position adjusting screw 6 is driven to move outward and the mandrel clamping sleeve 7 is driven to move rightward along the horizontal direction together with the vertical guide rod 4, the vertical position adjusting screw 3 and the adjusting nuts 9a ', 9 b' provided for the vertical position adjusting screw 3, thereby reaching a desired horizontal position.

After reaching this position, the horizontal inner adjusting nut 9b provided for the horizontal position adjusting screw 6 and fitted inside the mold frame connecting pipe 5 is rotated back to the outside, and the horizontal position adjusting screw 6 is locked at this position together with the horizontal outer adjusting nut 9a provided for the horizontal position adjusting screw 6 and fitted outside the mold frame connecting pipe 5, thereby changing the relative position of the mandrel collet 7 and the mold frame 1.

As can be seen, the "thread rotation feeding method" refers to a working method in which the locking nut is simultaneously screwed in or out to move the mandrel holder 7 along the transverse axis or longitudinal axis of the cross section of the mandrel 8, and is mutually locked by screwing in or out in opposite directions, so that the horizontal and vertical position adjusting screws cannot be freely moved in the parallel direction.

Similarly, the same thread rotation feeding mode can be used to make the horizontal position adjusting screw 6 drive the mandrel clamping sleeve 7 to move leftwards along the horizontal direction through the operation in the opposite direction.

Of course, it is also possible to adjust and fix the vertically relative position of the mandrel by adjusting the vertical position adjusting screw 3 upward or downward in the vertical direction using a pair of adjusting nuts 9a ', 9 b' provided for the vertical position adjusting screw 3 and installed inside and outside the die carrier connecting pipe 5 according to the same principle to move the mandrel holder 7, the horizontal position adjusting screw 6, and the adjusting nuts 9a, 9b provided for the horizontal position adjusting screw 6 upward or downward in the vertical direction together guided by the vertical guide rod 4.

In the present embodiment, the horizontal position-adjusting screw 6 and the vertical position-adjusting screw 3 are fastened to the mandrel holder 7 by welding. However, other known techniques such as flange connection may be used to fasten the horizontal position-adjusting screw 6 and the vertical position-adjusting screw 3 to the mandrel holder 7 so as not to make any relative displacement with respect to the mandrel holder 7. Such equivalent techniques are well known to those of ordinary skill in the art.

Referring to fig. 7, the tail structure of the mandrel collet 7 is shown in an enlarged manner. It can be seen that locking means such as a pair of circlips 71 or the like are mounted in the spindle collet 7 in an up-down position. After the mandrel with the stepped different diameter section is rotated by a certain angle by the rotating screw-nut device at the tail of the mandrel (at the adjusting notch 73 in fig. 7), the mandrel can be firmly clamped in the mandrel holder 7 at the stepped different diameter section by the pair of springs 71 to prevent the mandrel from further rotating in the mandrel holder 7. In addition, an annular protrusion 72 perpendicular to the length direction of the mandrel is formed inside the mandrel clamping sleeve 7, so that the mandrel clamping sleeve 7 and the mandrel 8 are mutually positioned in a line contact manner, and the included angle between the mandrel and the central axis of the mold cavity is changed through adjustment.

Furthermore, it will be readily apparent to one of ordinary skill in the art that the inventive cavity-containing article manufacturing system may be equipped with at least one mandrel fixing and adjusting device as described above. Referring to fig. 6, the system for manufacturing a cavity-carrying article is equipped with two mandrel fixing and adjusting devices 10, 10' arranged one behind the other along the mandrel 8. When any one of the mandrel fixing and adjusting devices is adjusted, the included angle of the mandrel relative to the central axis of the die cavity can be changed.

In another alternative embodiment, at least three spherical protrusions may be formed inside the mandrel holder 7 to position the mandrel holder 7 and the mandrel 8 in contact with each other at multiple points. In this case, the included angle between the mandrel and the central axis of the mold cavity can be adjusted and changed.

In the present embodiment, each adjusting nut is provided with a dial at the mold frame connection pipe 5 and the horizontal guide rail 2 to determine and record information of an adjusting position. In addition, the mandrel 8 is provided with a rotary screw-nut device at the tail end thereof, the rotational angle position of the mandrel 8 relative to the mandrel holder 7 is adjusted by twisting the mandrel 8, and the mandrel is locked by a locking device after being adjusted in place to prevent the mandrel 8 from continuing to rotate in the mandrel holder 7. Of course, one of ordinary skill in the art may substitute other spindle rotation adjustment locks for the rotary screw-nut arrangement and locking arrangement described above.

In the case where the cavity-in-mold product manufacturing system is equipped with two or more mandrel fixing and adjusting devices, it is ensured that each adjustment involves only any one of the position adjusting mechanisms disposed in the mandrel holder 7 while keeping the positions of the other position adjusting devices unchanged, so that the mandrel holder 7 is linearly moved along the transverse or longitudinal axis of the mandrel cross section without shaking, thereby changing the angle of the mandrel 8 passing through the mandrel holder 7 and the mold with respect to the central axis of the mold cavity based on the principle of leverage. Then, the mandrel holder 7 is linearly moved in the other direction along the longitudinal or transverse axis of the mandrel cross section in the same manner without shaking.

Of course, a person skilled in the art may also conceive of various equivalent alternatives to the position adjustment means and the adjustment locking means in the above embodiments, according to the prior art in this field. For example, the position adjusting means may include a pair of toothed linear guides fixed to the mandrel holder along the transverse and longitudinal axes of the mandrel cross-section, respectively, the toothed linear guides passing through horizontal and vertical mold frame connecting plates or connecting pipes fixed to the mold frame through slits or chutes, and the adjusting and locking means may include an adjusting gear and a tooth locking means fixed to the mold frame connecting plates through a rotating shaft and engaged with teeth of the toothed linear guides. The adjusting gear and the locking gear device enable the mandrel clamping sleeve to move along the transverse axis or the longitudinal axis of the cross section of the mandrel by screwing in or screwing out the teeth of the toothed linear guide rail. After the adjustment is in place, the adjusting gear is clamped by the gear locking device so as not to rotate continuously. At the moment, the adjusting gear and the tooth locking device are tightly clamped in the strip seam or the sliding groove of the die carrier connecting plate through the rotating shaft on the adjusting gear and the tooth locking device and are tightly associated with the toothed linear guide rail, so that the adjusting gear and the tooth locking device cannot move along the direction parallel to the toothed linear guide rail but can slide in the sliding groove of the die carrier connecting plate along with the toothed linear guide rail. It should be noted that the position guide apparatus of the present invention includes a horizontal guide rail 2 passing through the mandrel holder 7 and fixed to the mold frame 1, a vertical guide rod 4 passing through the horizontal guide rail 2 and fixed thereto, a horizontal slide groove 11 formed on the horizontal guide rail 2, and a vertical slide groove 12 formed on the mold frame connection pipe, so as to ensure that the mandrel holder 7 moves linearly without shaking during adjustment. Other technical means (such as linear guide, column jacket, runner, etc.) known to those skilled in the art to achieve the same purpose should be considered to fall within the scope of the present invention.

Resins suitable for use in the system for producing a cavity-equipped product according to the present invention include, but are not limited to, thermosetting resins such as thermosetting polyurethanes, epoxy resins, vinyl resins, phenol resins, cyanate resins, and unsaturated resins, modified resins thereof, and blended resins thereof, and thermoplastic resins such as thermoplastic polyurethanes, polycarbonates, polypropylenes, polyvinyl chlorides, polyethylenes, polyesters, and nylons, modified resins thereof, and blended resins thereof.

Fibers suitable for use with the system of the present invention include, but are not limited to, at least one of glass fibers, carbon fibers, basalt fibers, or combinations thereof. Alternatively, the fibers are organic fibers including, but not limited to, at least one of polyester fibers, nylon fibers, polyvinyl chloride fibers, and acrylic fibers, or combinations thereof. Still alternatively, the fibers are natural fibers including, but not limited to, at least one of flax, sisal, jute, cotton fibers, or combinations thereof.

The system for manufacturing a product with a cavity can also be provided with a detection device (such as a probe) for detecting the position of the mandrel and feeding back the position to the mandrel fixing and adjusting device at the inlet of the die 14, thereby realizing the automatic adjustment of the position of the mandrel in the production process.

Several preferred embodiments of a system for manufacturing a cavity-containing article equipped with a mandrel fixing and adjusting device according to the present invention will be described with reference to fig. 4-6 and 8.

First embodiment

FIG. 4 is a side view of a first embodiment of a molded article manufacturing system equipped with a mandrel fixing and adjusting apparatus of the present invention.

As shown in fig. 4, the cavity-equipped product manufacturing system is provided with a mandrel fixing and adjusting device 10, a fiber impregnation system 13, and a mold 14 from the left side of the figure. The mandrel fixing and adjusting device 10, the fiber impregnation system 13 and the mold 14 are each firmly connected to the mold frame 1 by at least one fastener. One end of the mandrel 8 is held inside the mandrel collet 7 and in a fixed position relative to the mandrel collet 7, while the other end extends out from the mandrel collet 7.

The vertical position adjusting screw 3 and the horizontal position adjusting screw 6 can be used to adjust the position of the mandrel 8 integrated in the mandrel clamping sleeve 7 in the vertical or horizontal direction of the cross section of the mandrel. In operation of the system, the mandrel 8, after passing through the mandrel fixing and adjusting device 10, continues from the inlet plate through the fibre impregnation system 13 and finally to the interior of the mould 14, so that the resin-impregnated fibres solidify into a profile in the cavity formed by the mandrel 8 and the inner wall of the mould 14. At least one mandrel rotation adjustment locking member is provided at the end of the mandrel 8 to prevent the mandrel 8 from being pulled out of the die 14 by external forces during the production process, and to lock the mandrel 8 in place after rotation to prevent the mandrel 8 from continuing to rotate within the mandrel holder 7.

Second embodiment

FIG. 5 is a side view of a second embodiment of a cavity-containing article manufacturing system equipped with a mandrel fixing and adjusting apparatus of the present invention. This embodiment is provided with a mandrel fixing and adjusting device similar to the first embodiment and has the same mandrel adjustment as the first embodiment, except that the die inlet is not connected to the fiber impregnation device. In this embodiment, the fibers are first impregnated with resin and then passed around the mandrel into the mold, where they are cured to form the profile in the cavity formed by the mandrel and the inner wall of the mold.

Third embodiment

FIG. 6 is a side view of a third embodiment of a cavity-containing article manufacturing system equipped with a mandrel fixing and adjusting apparatus of the present invention. This embodiment is provided with a mandrel fixing and adjusting device similar to the first embodiment and has the same mandrel adjustment manner as the first embodiment, except that the cavity-carrying article manufacturing system includes two mandrel fixing and adjusting devices arranged in the front-rear direction of the mandrel. As previously mentioned, each adjustment involves only one of the two mandrel fixing and adjusting devices arranged in the front-rear direction of the mandrel, while keeping the other mandrel fixing and adjusting device unchanged, so that the mandrel holder moves linearly along the transverse or longitudinal axis of the mandrel cross-section without wobbling, and the angle of the mandrel 8 passing through the mandrel holder 7 and the mold relative to the central axis of the mold cavity is changed based on the principle of leverage.

Fourth embodiment

FIG. 8 is a side view of a fourth embodiment of a cavity-containing article manufacturing system equipped with a mandrel fixing and adjusting apparatus of the present invention. The mandrel fixing and adjusting device 10 comprises: a mandrel jacket 7; a vertical lifting rod 22 and

vertical guide rods

22a, 22b connected by a ball seat 21 and disposed at the middle and front and rear ends, respectively; a horizontal adjusting screw 23 and

horizontal guide rods

23a and 23b through which the vertical lifting rod 22 and the

vertical guide rods

22a and 22b pass; a horizontal adjusting screw rod 23 and a horizontal adjusting baffle 24, wherein the horizontal adjusting screw rod 23 and the

horizontal guide rod

23a and 23b are provided with vertical sliding

grooves

26, 26a and 26b for the vertical lifting rod 22 and the

vertical guide rods

22a and 22b to pass through along the direction vertical to the drawing; a base 1 provided with horizontal sliding grooves for the

vertical guide rods

22a and 22b and the vertical lifting rod 22 to pass through along the direction parallel to the drawing; and adjusting

nuts

25, 25a, 25b for the vertical lifting rod 22, the

vertical guide rods

22a, 22b, the horizontal adjusting screw rod 23, and the

horizontal guide rods

23a, 23b, the adjusting

nuts

25, 25a, 25b being provided in pairs on the upper and lower sides of the base 1 and on the inner and outer sides of the horizontal adjusting fence 24. The mandrel 8 passes through the mandrel jacket 7 and extends into the fibre impregnation system 13 and the mould 14, and the fibres pass around the mandrel 8 into the fibre impregnation system 13 and the mould 14 and solidify into a profile in the cavity formed by the mandrel 8 and the inner wall of the mould.

When the mandrel clamping sleeve 7 is required to be lifted, the vertical lifting rod 22 and the adjusting

nuts

25, 25a and 25b of the

vertical guide rods

22a and 22b positioned on the lower side of the base are screwed back, the adjusting nut 25 of the vertical lifting rod 22 positioned on the upper side of the base is screwed back, the mandrel clamping sleeve 7 and the mandrel 8 therein are lifted to a desired position together with the

vertical guide rods

22a and 22b and the vertical lifting rod 22, then the adjusting nut 25 of the vertical lifting rod 22 positioned on the lower side of the base is screwed in and locked, and then the adjusting nuts 25a and 25b of the

vertical guide rods

22a and 22b positioned on the two ends of the base are rotated to further lock the vertical position of the mandrel clamping sleeve 7.

When it is desired to lower the mandrel holder 7, the adjusting nuts 25a, 25b of the

vertical guide rods

22a, 22b on the upper side of the base are unscrewed and moved upward, and then the nut 25 of the vertical lifting rod 22 on the upper side of the base is screwed in and also moved upward. Then, the mandrel holder 7 is lowered together with the mandrel 8 therein, the

vertical guide rods

22a, 22b, and the vertical lift rod 22. After the desired position is reached, the adjustment nuts on the underside of the base of the vertical lift bar 22 are threaded and moved up to lock the position of the vertical lift bar 22, and the adjustment nuts on the two ends of the base of the

vertical guide bars

22a, 22b are rotated to move them toward each other to lock the position of the

vertical guide bars

22a, 22 b.

When the mandrel clamping sleeve 7 needs to move towards the outside of the drawing, the horizontal adjusting rod 23 through which the vertical lifting rod 22 and the

vertical guide rods

22a and 22b pass is rotated and retreated, and the adjusting nuts of the horizontal adjusting baffle plate 24, which are positioned at the inner sides of the horizontal

adjusting baffle plates

23, 23a and 23b, are rotated inwards, and then the adjusting nuts of the horizontal adjusting rod 23, which are positioned at the outer sides of the horizontal adjusting baffle plates 24, are rotated so that the horizontal adjusting rod 23 and the

horizontal guide rods

23a and 23b are outwards moved, so that the mandrel clamping sleeve 7 and the mandrel 8 therein, together with the

vertical guide rods

22a and 22b and the vertical lifting rod 22, are driven to linearly move along the horizontal sliding grooves on the. After the desired position has been reached, the adjusting nut of the horizontal adjusting rod 23, which is located inside the horizontal adjusting stop 24, is screwed off and moved outwards to lock the position of the horizontal adjusting rod 23 and thereby the horizontal position of the mandrel 8. Adjusting nuts positioned on the inner side and the outer side of the horizontal adjusting baffle 24 can lock the positions of the horizontal guide rods by further rotating the

horizontal guide rods

23a and 23b in opposite directions. According to the same principle, the mandrel holder 7 can be moved and fixed in the in-plane direction of the figure.

When the mandrel 8 and the central line of the mold cavity form a certain included angle, any one of the

vertical guide rods

22a and 22b at the two ends of the mandrel jacket 7 can be moved up and down or any one of the

horizontal guide rods

23a and 23b can be moved and fixed in the outward direction in the drawing plane according to the principle.

Preferably, the position of the base 1 is correlated to the position of the mould 14, which can be relatively fixed and simultaneously moved.

The operation of the system for manufacturing a cavity-carrying product equipped with a mandrel fixing and adjusting device according to the present invention will be briefly described.

First, the mandrel 8 is introduced into the mandrel fixing and adjusting device 10. One end of the mandrel 8 is held inside the mandrel holder 7 and in a fixed position relative to the mandrel holder 7, while the other end extends from the mandrel holder 7 and into the interior of the mould 14, and the resin-impregnated fibres are cured into a profile in the cavity formed by the mandrel and the inner wall of the mould. A detection device installed at the inlet of the die 14 or at the outlet of the die 14 detects the position of the mandrel 8 or the wall thickness deviation of the profile and feeds this information back to the mandrel fixing and adjusting device 10 or displays it on a display screen or an alarm. The mandrel fixing and adjusting device 10 adjusts the vertical and horizontal position adjusting screws 3, 6 and the mandrel rotation adjusting locking member at the tail of the mandrel manually or by using an external force provided by a power device according to the feedback information, and repeats the above checking and adjusting steps as necessary until the mandrel 8 is automatically adjusted to a desired position.

While the structure of the mandrel fixing and adjusting device and the system for manufacturing a cavity-bearing article equipped with the same of the present invention has been described above in connection with the preferred embodiments, those skilled in the art will recognize that the foregoing examples are illustrative only and are not to be construed as limiting the invention. The invention, therefore, may be modified within the spirit and scope of the appended claims. Such modifications are intended to fall within the scope of the appended claims.

Claims

1. A mandrel fixing and adjusting device (10) comprising: the mandrel fixing and adjusting device comprises a die set or a base (1) supporting the mandrel fixing and adjusting device (10), a mandrel jacket (7) with a mandrel (8) integrated therein, adjusting guide devices (2, 4), position adjusting devices (3, 6) and an adjusting locking device (9), wherein the position adjusting devices (3, 6) are respectively fixed on the mandrel jacket (7) along the transverse axis and the longitudinal axis of the cross section of the mandrel, and the mandrel fixing and adjusting device is characterized in that the position adjusting devices (3, 6) adjust the positions of the mandrel jacket (7) and the mandrel (8) by adjusting the relative positions of the mandrel jacket (7) and the die set or the base (1) in a thread rotating feeding mode; characterized in that one end of the mandrel (8) is held inside the mandrel jacket (7) and in a fixed position relative to the mandrel jacket (7); the adjusting and guiding devices (2 and 4) comprise horizontal guide rails (2) and vertical guide rods (4), and the position adjusting devices (3 and 6) comprise horizontal position adjusting screw rods (6) and vertical position adjusting screw rods (3).

2. Mandrel fixing and adjusting device (10) according to claim 1, characterised in that said adjusting and guiding means (2, 4) comprise a horizontal guide (2) and a vertical guide rod (4), said position adjusting means (3, 6) comprise a horizontal position adjusting screw (6) passing through a formwork connecting pipe or plate (5) fixed to said formwork (1) and a vertical position adjusting screw (3) passing through said horizontal guide (2), said adjusting and locking means (9) comprise a first pair of adjusting nuts (9a, 9b) provided for said horizontal position adjusting screw (6) and a second pair of adjusting nuts (9a ', 9b ') provided for said vertical position adjusting screw (3), one adjusting nut (9 b; 9b ') of said first and second pair of adjusting nuts being mounted inside said connecting pipe formwork (5) and said horizontal guide (2) respectively, and the other adjusting nut (9 a; 9 a') is respectively arranged outside the die carrier connecting pipe (5) and the horizontal guide rail (2).

3. The mandrel fixing and adjusting device (10) as claimed in claim 2, characterized in that the horizontal guide rail (2) and the die carrier connecting tube (5) are respectively provided with a horizontal guide chute (11) and a vertical guide chute (12) in which the vertical position adjusting screw rod (3) and the horizontal position adjusting screw rod (6) slide.

4. A mandrel fixing and adjusting device (10) according to claim 3, characterized in that the chute width of the horizontal guide chute (11) and the vertical guide chute (12) is smaller than the diameter of the adjusting nut.

5. A mandrel fixing and adjusting device (10) according to claim 1, characterized in that means are installed in the mandrel holder (7) for rotating and fixing the mandrel (8) in the mandrel holder (7).

6. The mandrel fixing and adjusting device (10) as claimed in claim 1, characterized in that the inside of the mandrel collet (7) or the part of the mandrel (8) located inside the mandrel collet (7) is formed with an annular protrusion (72) or at least three spherical protrusions perpendicular to the mandrel length direction to position the mandrel collet (7) and the mandrel (8) in line contact or multipoint contact with each other for adjusting the mandrel (8) in the mandrel collet (7).

7. Mandrel fixing and adjusting device (10) according to claim 1, characterized in that the adjusting guides (2, 4) are associated with the mould carrier (1), the mould carrier connection pipe (5) and the mandrel jacket (7) so that only one of the position adjusting devices (3, 6) moves linearly in the direction of one of the adjusting guides (2, 4) without wobbling.

8. The mandrel fixing and adjusting device (10) according to claim 2, characterized in that the horizontal position adjusting screw (6) and the vertical position adjusting screw (3) are fixed to the mandrel collet (7) by welding.

9. The mandrel fixing and adjusting device (10) as claimed in claim 2, characterized in that the horizontal position adjusting screw (6) and the vertical position adjusting screw (3) are flange-fixed to the mandrel collet (7).

10. A system for manufacturing a product with a cavity equipped with one or more mandrel holding and adjusting devices (10) according to any one of claims 1 to 9, characterized in that it further comprises a mould (14), said mandrel holding and adjusting devices (10) and said mould (14) being connected to said mould carrier (1).

11. A system for producing a cavity-carrying product according to claim 10, wherein the mandrel (8) passed through the mandrel fixing and adjusting device (10) continues to extend through the mould (14) so that the resin-impregnated fibres solidify into a profile in the cavity formed by the mandrel (8) and the inner wall of the mould (14).

12. A system for producing a cavity-carrying product according to claim 11, wherein the mould (14) is connected to a fibre impregnation system (13).

13. The system for manufacturing a cavity-equipped product according to claim 11, wherein the resin is a thermosetting resin.

14. The system for producing a cavity-carrying product as set forth in claim 13, wherein the thermosetting resin includes, but is not limited to, at least one of thermosetting polyurethane, epoxy resin, vinyl resin, phenol resin, cyanate resin, and unsaturated resin, or modified resin or blended resin thereof.

15. The cavity-equipped article manufacturing system according to claim 11, wherein the resin is a thermoplastic resin.

16. The system for producing a cavity-carrying article according to claim 15, wherein the thermoplastic resin includes, but is not limited to, at least one of thermoplastic polyurethane, polycarbonate, polypropylene, polyvinyl chloride, polyethylene, polyester, nylon, or a modified resin or blended resin thereof.

17. The cavity-in-mold article manufacturing system of claim 11, wherein said fibers include, but are not limited to, at least one of glass fibers, carbon fibers, and basalt fibers, or combinations thereof.

18. The system of claim 11, wherein the fibers are organic fibers including but not limited to at least one of polyester fibers, nylon fibers, polyvinyl chloride fibers, acrylonitrile fibers, or combinations thereof.

19. The cavity-carrying article manufacturing system of claim 11, wherein the fibers are natural fibers including, but not limited to, at least one of flax, sisal, jute, cotton fibers, or combinations thereof.

20. A system for producing a cavity-carrying product according to claim 10, further comprising power means associated with said position adjustment means (3, 6) to power said position adjustment means (3, 6).

21. The system for manufacturing a molded article according to claim 20, wherein the power device is an electric motor or a hydraulic drive device.

22. A system for producing a product with a cavity according to claim 11, further comprising detecting means arranged at the entrance of the die (14) for detecting and feeding back the position of the mandrel or at the exit of the die (11) for detecting and feeding back the wall thickness deviation of the profile.

23. The system for manufacturing a cavity-bearing article according to claim 22, wherein said detecting means measures by means of laser or ultrasonic waves.

24. The cavity-carrying article manufacturing system as set forth in claim 10, wherein said plurality of mandrel fixing and adjusting means (10) are arranged along a front-rear direction of said mandrel (8).

25. A system for producing a cavity-carrying product according to claim 10, wherein the rear end of the mandrel (8) is provided with a locking mechanism which enables the mandrel (8) to be rotated and which locks the mandrel (8) after rotation.

26. A system for manufacturing a cavity-carrying product according to claim 10, further comprising a scale provided at the position of the mold frame connecting pipe (5) or the horizontal guide rail (2) where the locking means (9) is adjusted, for recording the position information of the mandrel.

27. A method of operating a system for manufacturing a cavity-carrying product equipped with a mandrel fixing and adjusting device (10) according to any one of claims 1 to 9, comprising the steps of:

(a) -introducing a mandrel (8) into the mandrel fixing and adjusting device (10);

(b) -holding one end of the mandrel (8) inside a mandrel jacket (7) and in a fixed position with respect to the mandrel jacket (7);

(c) -extending the other end of the mandrel (8) from the mandrel jacket (7) and through a die (14);

(d) detecting the position of the mandrel (8) or the wall thickness deviation of the profile through a detection device and feeding back to the mandrel fixing and adjusting device (10);

(e) adjusting the position of the mandrel jacket (7) and the mandrel (8) by means of position adjusting devices (3, 6); and

(f) repeating the above steps (d) and (e) until the mandrel (8) is adjusted to a desired position.

28. An article obtained by the method of operating the cavity-in-article manufacturing system of claim 27.

29. The article of claim 28, wherein the article is a hollow profile for fenestration wall frames, solar panel bezels and brackets, insulating stiles, tubing.