CN1024264C - Method and apparatus for compressing wooden sample - Google Patents
Method and apparatus for compressing wooden sample Download PDFInfo
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- CN1024264C CN1024264C CN 91101200 CN91101200A CN1024264C CN 1024264 C CN1024264 C CN 1024264C CN 91101200 CN91101200 CN 91101200 CN 91101200 A CN91101200 A CN 91101200A CN 1024264 C CN1024264 C CN 1024264C
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Abstract
The present invention relates to a wooden sample compressing device and a method thereof, wherein a heated wooden sample is compressed axially according to the texture or the fibre direction. Compressing force in opposite directions is exerted on the end surfaces and the side surfaces of the sample. The sample can be positioned in a compression channel and moved mutually in the channel along the longitudinal direction, so the channel contacts the sample in a friction way, and a device is used for exerting compressing force of friction on the wooden sample. The side walls or the friction plates can contact the sample on longitudinal space sections. The side walls are correspondingly arranged in pairs preferably, and each pair of side walls is substantially stretched along the whole section of the sample. An oil pressure cylinder which exerts compressing force on the end surfaces of the sample can simultaneously drive the side wall on opposite directions to move longitudinally corresponding to another pair of side walls.
Description
The present invention is about a kind of method and apparatus that is used to compress wooden sample.
One wooden sample is compressed with its texture or machine direction then, but is not made it deviation if formerly once boiled processing or steam treated, and then this wooden sample can laterally bend at its texture or machine direction easily, and this is known.This wooden sample that was compressed will be kept the shape of its bending after bending and drying.When these two ends with prismatic woodwork of equal length place a compression module with sidewall, this sidewall firmly is contacted with the side of sample, when imposing compression stress, can find that the suffered compression degree in end of this sample can be more higher than stage casing part at two ends.
German patent specification has disclosed a kind of method and apparatus of compressing and stretching wooden sample for the 516th, No. 801, and wherein, vertical compression stress of rightabout not only puts on the end face of prismatic sample, also puts on its lateral parts.In this known method and apparatus, compression stress system is via a power conductive plate with zigzag protuberance, and it contacts with the lateral parts of wooden sample, and compression stress is put on the opposite end of this sample.The side of each end of this sample system is connected with this power conductive plate, and compression stress puts on the power conductive plate via pressure piston, and it also works to two opposite end faces of wooden sample.
In this prior art method and device, its power conductive plate not between among the essence of wooden sample longitudinal component or middle section extend, make sample do to shorten substantially to make it under the influence of compression stress.This means that this is disclosed in the method and apparatus in the above-mentioned German patent specification, and fails to obtain one substantially in the compression that obtains along the sample length direction equating, and is especially more obvious during the wooden sample of length in compression.What is more, use above-mentioned known method and when device, its sample section longitudinal component among not by the contained lid of power conductive plate can't suitably support to prevent improper bending.
The object of the present invention is to provide a kind of method and apparatus that compresses wooden sample, this method and apparatus can make sample obtain a more identical compression stress at its length direction.
Compress the method for the wooden sample of a stretching, extension according to the present invention, it comprises the texture that puts on sample or the compression stress of machine direction one rightabout, this compression stress includes the frictional force of rightabout, it is the lateral parts that puts on this sample, and be to prevent this sample deviation simultaneously, and, it is characterized in that applying the longitudinally stacked lateral parts of the frictional force of rightabout in this sample according to the present invention's invention.
By the frictional force that applies this rightabout in stacked lateral parts, so that obtain the compression stress of equalization substantially at length direction along sample, or one of arbitrary position of this sample is located or many places designated length section is compressed, because of this sample gives laterally space separation in longitudinally stacked side, so that be used for conducting the power conduction device of this frictional force to stacked side, though this sample vertically compression degree how, unlikely contact but still can conduct to the other side each other.
If desire is from the longitudinal subdivision space of free end, one of sample or multistage longitudinal component are compressed, then can to impose on the lateral parts of this sample individually be frictional force to this compression stress, yet the compression stress of rightabout is to be preferable with the opposing end surface that puts on this sample.
For the bending that prevents sample can so make this sample laterally be extended to some degree when being subjected to axial compression by flexibly applying the side of horizontal strength in sample.Yet if need, this horizontal strength that puts on the sample side can be changed and/or put on the sample side when axial compression horizontal strength can impose the power of difference along the length direction of this sample.
As mentioned above, the frictional force of its rightabout can put on this sample one or the many places stacked lateral parts at place, space longitudinally.Yet in a preferred embodiment, be applied with each lateral parts of frictional force, it is the whole length that are stretched in this sample substantially.For example, the frictional force that imposes on first longitudinal direction of sample can be applied in the sample one or first side of many places vicinity, otherwise and impose in the sample with first direction mutually the frictional force of second longitudinal direction can be applied in this sample one or second side of many places vicinity, this second side system is adjacent to and/or in contrast to this first side.Will be understood that this frictional force can be applied in the Zone Full or the subregion of this each side.
In a preferred embodiment, frictional force system is applied in the side of a pair of relative direction.So, particularly favourable when wooden sample has the section configuration of a square or rectangle.Yet this wooden sample can have the shape of any other section, for example triangle, quadrangle, pentagon, hexagon etc.In addition, this wooden sample can also be the shape of circular, oval or any other circle cross section.
The frictional force that puts on wooden sample side surface part branch can be impartial substantially along the sample length direction.Yet the frictional force that imposes on this sample side also can for example in order to obtain the compression of non-equalization at selected sample longitudinal component, be used the bending characteristic that obtains difference in the position of the vertical difference of sample in the longitudinal direction change of sample.
This wooden sample preferably gives pre-treatment when compressing before or compressing, for example by modes such as heat, steam or chemistry.General this wooden sample ties up to its total length and does identical processing before.Yet, also might sample only one or the vertical section in many places give pre-treatment, with a bending characteristic that only obtains in this selected position.
This wooden sample can be divided into sample by longitudinally cutting a plurality of times with it before or after compression is handled.
Compress the device of the wooden sample of a stretching, extension according to the present invention, it includes and applies the device of a rightabout frictional force in this sample texture or machine direction, and a device that prevents the bending of this sample, this device be characterised in that this applies frictional force is to be used to frictionally be connected with the longitudinally stacked side of sample in the device of sample.
This device can include a device that forms a conduit, and holding sample, this conduit system is formed by stacked sidewall longitudinally at least in part, and this sidewall system can do longitudinally mutual displacement in conduit; Pushing this sidewall makes it and is placed in the interior sample of conduit and make frictional engagement; And a device that reciprocally makes this sidewall displacement, to provide the friction compression stress in wooden sample.
This can have the sample interface as being connected sample stacked sidewall laterally contiguous or that laterally separate the space, with the CONTACT WITH FRICTION of increase or attenuating and sample side.Therefore, these surfaces can be more level and smooth or more unsmooth, and the structure that increases friction perhaps can be set, and for example a plurality of protuberances for example are disclosed in the mode person in the above-mentioned German patent specification.
Apply reverse compression power and can include the conduit end wall that vertically reciprocally to divide a word with a hyphen at the end of a line at conduit in the device of two end surfaces of this sample, and include and apply the force generating apparatus of compression stress at least one end wall, so that end wall is travelled to each other end wall, this sidewall system is linked to or can be linked to one of end wall drivingly and locates, and uses end wall via force generating apparatus and moves mutually and cause this stacked sidewall to do mutual moving.Then this identical force generating apparatus not only can be used to do to move this end wall portion, also can be used as and reciprocally uses the stacked sidewall of its device to move.This end wall and relevant sidewall can give binding, so that this sidewall end wall mutual with it together moves.In addition its configuration also can make sidewall together not move with relevant end wall, and just mobile when end wall has moved to a predetermined length, so that this sample gave compression earlier before the compression stress that is subjected to rubbing.
Wherein end wall of this device and relevant sidewall thereof can be arranged at the relevant place of this device body frame still, other end wall and relevant sidewall then can vertically move accordingly by force generating apparatus, and this force generating apparatus can include the oil hydraulic cylinder of for example hydraulic operation.
This pushing sidewall and the device that makes it to make frictional engagement with sample can include the device of elasticity, for example inflatable bag or one of pipe or other pattern inflatable device.The device that this is inflatable is preferable to separate into two or more vertical sections inflatable separately and that can emit gas, uses the vertical section of difference that the compression frictional force that makes difference can be applied in this sample when needed.Moreover, force in the pressure at vertical section place of this sidewall via pressing device, be to be compressed its length when shortening because of sample at the section of this side-walls, can be disengaged when no longer needing this pressure this moment.
Consult attached be graphic, the present invention is done further explanation, wherein:
Fig. 1 is the perspective and the phantom of apparatus of the present invention; And
Fig. 2 is the expansion sectional drawing of the compression mould of device.
This device includes a box-like compression module 10, and it has a base plate 11, a pair of relative sidewall 12 and 13 and one end wall 14 and forms one upwards and the box-like or groove shape monomer of an end opening.The upper opening of this groove shape monomer can partly seal by a top board 15, this top board can link by the locked instrument that can untie and monomer, for example be screwed together in cell body and link, for example be screwed together in the screw 17 of groove shape monomer with bolt or screw 16 with bolt or screw 16.The length of top board 15 is weak point than the length of groove shape monomer, makes when top board covers, and at one end leaves opening (left-hand end of Fig. 1).One is arranged at the two moving oil hydraulic cylinders 18 in the open end of module 10, is to be fixedly arranged on the end wall 14, and a pressing plate or element 20 are arranged at the free end of the piston rod 19 of this oil hydraulic cylinder.Base plate and side plate 11,12,13 are strengthened or are made its unlikely moves by U-shaped external strengthening cross member 21, and this reinforcement members is provided with along the length direction of module 10 space that is separated by, and is formed with screw 17.Top board 15 is also strengthened by corresponding reinforcement members 22 linearly or is made its unlikely moves, and this reinforcement members system laterally extends module 10, and is that one space, space is provided with, with substantially corresponding to each reinforcement members 21.This external strengthening member 21 and 22 can be welded in the outer surface of base plate and sidewall 11～13 and the outer surface of top board 15 respectively.
The one block interface components 24 with handgrip 24 is located in the module 10 open end corresponding to the end wall 14 that is provided with oil hydraulic cylinder 18, the end portion system of this mould is with a top board 25 sealings, and be by it permanently being fixedly arranged on side plate 12,13 as welding, and this interface components 23 is by a locking bolt 26 strong fixs, this interface components can be placed in by top board 25, interface components 23,11 of base plates and be between the perforate of a straight line, it also can increase its thickness in the end of this mould, and is graphic as shown in Figure 1.Locking bolt 26 has a bellend 27 that has a handgrip member 28 that laterally extends.The more block interface components 23 in the inner space that corresponding biside plate 12,13 is formed is for wide, to form the space of an opening in the both sides of interface components 23.
One backboard 29, it is supported that by surface within the base plate 11 it has a friction plate or layer 30.The inner side adjacency of one backboard or back of the body piece 31 and side plate 13, and hold on by this friction plate 30.The inflatable bag 32 of one an inflatable pipe or an elongation extends along side plate 12, and within the side plate 12 between a surface and the pressing plate 33 of being supported by base plate 11.
One inflatable tube or bag 34 extend along the y directions of mould 10, and its position is within the top board 15 between a surface and the pressing plate 35, and be adjacent to one longitudinally the pencil of extensions carry on the back part 36.Within the pencil back of the body part 36 wall system with one have tee-section friction member 37 covered it.The guiding principle shape part 38 of one friction member 37 is embedded in pencil back of the body part 36 or is placed in the groove of this pencil back of the body part, so that this back of the body spare 36 forms a monolithic element with this friction member, pressing plate 35 is by compression spring 39 and 40 suspentions.End system is placed in the perforate 41 that back of the body part 31 upper faces offer under this compression spring 39, and the end is to be connected in the bottom surface of pressing plate 35 on the spring 39.End system is connected in the upper face of top board 15 under the spring 40, end then is connected one by one of hanging bolt 43 upper ends institute shape wheel rim or bolt head 42 on the spring 40, and end system is connected by the end or the wheel rim 45 that for example engage with pressing plate 35 lower surface under this bolt 43.
This backboard or member 29,31 and 36 and pressing plate 33 and 35 can wood materials for example plywood or plastic material or metal for example steel or aluminium wait and make, and this friction plate or friction member 30 and 37 for example stainless steel, aluminium or other metal etc. are fabricated to preferable with steel.
The wooden sample 46 of one rib shape or pencil, its texture or wood fibre system is vertical direction extends, and heat treatment is pretreated, and to make it moistureproof, this sample can be done longitudinally to compress in compression molding mould 10.This sample 46 is to be placed within the compression groove that is formed by backboard 31 and pressing plate 33, and between top and bottom friction plate or member 30 and 37.The a pair of friction plate that heats 47 and 48 is the both sides that are disposed at wooden sample 46, and its configuration can be done longitudinally to move corresponding to compression mould 10.Noggin piece 49 and 50 is filled the space between backboard 31 and 47 of friction plates and pressing plate 33 and the friction plate 48 respectively.This noggin piece 49 and 50 can by timber for example plywood make, its thickness can be selected it according to the lateral dimension of sample 46.The configuration of this noggin piece and infill panel 49 and 50 system can make it along with friction plate 47 and 48 vertically and corresponding to fixing backboard 31 and pressing plate 33 moving along module.In order to reduce the frictional force between plate 31 and 49, the surface can be coated with the material of reducing friction such as the iron coating 51 of dragon (teflon) and so on not within this backboard 31.The surface is also in the same manner coated with the material of reducing friction iron coating 52 such as dragon not for example within this pressing plate 33.
Be fastened at the pressing plate of piston rod 19 of oil hydraulic cylinder 18 or the vertical dimension system of member 20 and correspond to wooden sample 46(Fig. 2 substantially) vertical dimension, and the horizontal size of compression element 20 system corresponds to the space between the coating 51 and 52 of the material of reducing friction substantially.Side surface system is connected in the end surface of wooden sample 46 within the interface components 23 of bulk, and is connected in the end surface of the backboard 29 that has friction plate 30 and the end surface that has the pencil back of the body part 36 of friction member 37.Moreover the horizontal size of this interface components 23 corresponds to the horizontal width of wooden sample 46 substantially.
As shown in Figure 1, each inflatable pipe 32 and 34 for example can be a kind of extinguishing pipe, is by clamping device 53 its two end closely to be sealed.Person more, the pipe 32 and 34 of each length is tightly it to be divided into pipeline section 54 and 55 two sections of pipeline section than length of weak point by clamping device 56.Compressed air can be by a compressed air source (not shown) via conduit 57 and 58 and be inflated in each pipeline section.
As shown in Figure 2, each friction plate 47 and 48, it is preferably preferable by aluminum, can be divided into side cover plate 60 within an outside mainboard 59 and the connection thereon.This outside mainboard 59 can offer conduit or perforate, with heater 61 for example heating etc. hold in it.One central conduit or perforate 62 can be held a thermoregulator, are supplied to electric current or other heat energy of heater 61 with control.Perforate or passage 63 can be formed in the outside mainboard 59 with guiding cooling medium.As shown in Figure 1, the space that is formed between block interface components 23 and adjoining module side plate 12 and 13 inner surfaces can be passed in the end of friction plate 47 and 48 end and noggin piece 49 and 50.This friction plate 47 and 48 end can be connected in cable 64, with the supply electric energy to being embedded in the interior electric heater unit of mainboard 59.
Aforementioned device can be operated as follows:
This bulk interface components 23 discharges and moves apart compression module 10, so that wooden sample 46 and the pencil back of the body part 36 desiring to be compressed are inserted.Steam heated is to for example temperature of 100～110 degree Celsius for this wooden sample 46, and its water content is to be not less than 20 percent for preferable.At this moment, this interface components 23 resets again, so that one of sample 46 end is connected with interface components 23, the other end surface of this sample then is connected the compressive plate 20 in oil hydraulic cylinder 18. Friction plate 47 and 48, and infill panel 49 and 50 then can be placed in the module, to make it the side surface placement along sample 46.Compressed Gas is supplied to pipeline section 54 and 55 via conduit 57 and 58 this moment, so that pressing plate 35 is together with back of the body part 36 and friction member 37 moves down and friction member 37 is connected with the upper face of wooden sample 46, and also the while closely is connected in friction member 30 to make the lower surface of sample.In the same manner, pressing plate 33, noggin piece and friction plate 48 also move to the inside, use that friction plate 47 and 48 is flexiblely oppressed in the both side surface of wooden sample 46.This pressure system that is supplied to the Compressed Gas of pipeline section 54 and 55 is controlled, and is desired the frictional force that reaches to obtain between partly in the friction plate of wooden sample 46 and linkings mutually thereof and component surface.
Be supplied to oil hydraulic cylinder 18 with oil pressure via the oil pressure source conduit 65 from the oil pressure source (not shown) this moment, and this hydraulic power source and compressed gas source are configurable in having within Pressure gauge or pressure gauge 67 housing 66 as shown in Figure 1.When oil hydraulic cylinder 18 promoted pressing plate 20, this plate propped up the surface of the abutting end of wooden sample 46, and then friction plate 47 and 48, and infill panel 49 and 50 moves to block interface components 23, and the pressure that this compressive plate produced may be higher than 350 kilograms/square centimeter.This interface components 23 can prevent sample 46 and with the vertically moving of the backboard 29 of friction plate 30, and prevents back component 36 the moving with friction member 37.Yet this interface components 23 does not stop vertically moving of friction plate 47,48 and infill panel 49,50.When the right of oil hydraulic cylinder 18 moving press plates 20 to Fig. 1, wooden sample 46 will by longitudinally compression, friction plate 47 and 48 and outside the end of infill panel 49 and 50 then shifted to by module 10.Electric energy can be via cable 64 supplies, when compressing sample is heated.Its heating can be to continue forms such as heating, high-frequency heating and/or heating using microwave.
Should will be understood that this wooden sample 46 not only is subjected to the compression stress of rightabout on its surface, two opposite ends, and its lateral surface also is subjected to the frictional force of rightabout.Therefore, the relative vertical and lateral surface of this wooden sample 46 is subjected to the frictional force of friction plate 47 and 48 moving directions, and the horizontal lateral surface that this sample is relative then is subjected to the frictional force of the rightabout of static friction plate or member 30 and 37.This wooden sample 46 is subjected to the compression stress on pressurized sample opposite ends surface and adds to the compression of the combining abilities such as compression frictional force of the opposite lateral surface of this sample as a result, so can obtaining along its length direction and want the impartial compression stress that reaches at sample.Sample can reach control by control is supplied to the pressure of pipeline section 54 and 55 in the compression of different vertical part, and/or by selecting suitable material to form the sample abutment surface of friction plate and friction member.Person more, this compression frictional force can be by changing sample with the coarse of friction plate and member contact surface or smoothly change it.For example, this friction plate 47 and 48 can be made by aluminium, and friction plate 30 and friction member 37 can be made by stainless steel.
Frictional force also can be changed along the length direction of arbitrary friction plate or member, for example a certain zone is provided with the protuberance that increases friction on the contact-making surface of sample, for example sawtooth or matsurface and/or establish that for example talcum powder or iron are not imperial in the specific region with the material that increases friction use making wooden sample 46 obtain the different compression stresses of being wanted at its length direction.The change of this sample compression stress also can be by before compression a certain vertical section of sample being heated.
When this sample 46 is longitudinally compressed, its cross dimension will strengthen, and the flexible inflatable pipeline section 54 of tool and 55 allows its size in the cross section to change.Be supplied to the pressure of the Compressed Gas of pipeline section, can when compression, be changed if need.
When pressing plate 20 move between static upper and lower friction plate 30 and 37, and backboard and pressing plate 31 and 33 between space one specific range the time, wooden sample 46 can be pressed short because of the compression stress that imposes substantially, the pressure that is supplied to the Compressed Gas of pipeline section can reduce, even can fully disengage, therefore do not made pressing plate 20 folders only motionless when preventing by the end toe-in of plate 30,31,33 that wooden sample 46 supported and 37.This inflatable pipe 32 and 34 can be separated into more vertically section, so that sample 46 is more closely controlled in horizontal clipping.
Will be understood that, sample by the degree of longitudinally compression be on the wooden form that is compressed decide and be subjected to desire the final product that reaches the bending characteristic decide.Yet, known if want to obtain an identical substantially compression along its length direction at this sample, then must be, and 80 percent being preferable with 75 to 85 percent of the original length of it boil down to, and its compression must through one relatively the long period for example 15～30 minutes be good.
As previously mentioned, this wooden sample 46 can make it to remain on heated condition by electric heater unit 61 between compression period, 80 degree for example Celsius approximately.When sample 46 had been compressed to the degree of wanting, it can still be retained in the module and under compressive state before compression stress is released out and give cooling.This cooling can be accelerated by for example being formed at the interior perforate of mainboard 59 or the refrigerant of 63 circulation cycle of passage.When being compressed and the sample of cooling when removing, its length can be reduced to the about 20 percent of its original length, and this sample can maintain the length of its shortening back substantially and remain under the state of elasticity, and is also identical after this sample has been done.Sample after having done can cut and/or be made the shape of wanting, and its shape can repeatedly be changed, and this sample still can have suitable intensity and reach in its certain stability of tool in shape.
This puts on the compression stress of the sample 46 that is compressed in the compression module 10 in addition, can still stay at sample and promptly give release under the hot state.So, this sample that is compressed 46 can axially stretch when pressure discharges, and the shortening length that this sample kept will be 3 percent to five of its original length.In the case, if this sample moisture content surpass 20 percent its promptly can maintain under the state of elasticity.This sample can be cut or make the size of being wanted and/or be bent to its last shape and make it dry.When this sample drying, it has and preceding identical length and the stability of processing in shape.Yet, found that its plasticity coefficient has reduction slightly.For example, this sample that is compressed 46 can be cut and be bent to a plurality of product such as duplicate sample such as for example statistical form or furniture element etc. respectively.When this sample or duplicate sample product form last shape, promptly give drying, this net shape promptly formalizes subsequently.The degree of its drying can be carried out in module or instrument, the crooked or distortion with this sample.
This sample of what is called will be understood that at the state of elasticity this sample can be bent or give distortion, for example by bending tool or manually it is become final shape.
When sample obtains an elastic condition by compression, as long as constant then this condition of its state is promptly keeping.Therefore, if sample longitudinally compressed, and compression stress still given release at sample under hot state, and then the water content of this sample can maintain, if this sample remains on it and longitudinally cooled off and dry mistake under the confined state, then this drying regime can maintain.
The operation of device shown in Figure 1, the Compressed Gas that is supplied to the hydraulic pressure of oil hydraulic cylinder 18 and is supplied to different pipe sections 54 and 55 can be controlled by an electronic control unit that preestablishes formula 68 with keyboard, so, the data of difference for example can be input into control module relevant for the pattern of the wooden materials of desire heating.
Claims (4)
1, a kind of method of compressing wooden sample is used for along the texture or the machine direction of the wooden sample that stretches it being compressed basically, and this sample has side and end face, and described method comprises:
Wooden sample is inserted in conduit, and this conduit is formed with first and second end walls that prevent angled side walls and engageable sample corresponding end-faces by side engageable and the support sample basically,
The direction of first end wall towards second end wall moved, control or limit moving of second end wall simultaneously, so that wooden sample is compressed between described end walls,
It is characterized in that, also comprise the described a part of sidewall that extends along the sample total length is basically moved with fixedly connected relation with described first end wall, the mobile of sidewall of the remainder that simultaneously will be equally basically extends along the total length of sample controlled or limits, and makes it to be maintained fixed annexation with described second end wall;
Prevent the inclination of sample, by the horizontal power that flexibly applies to the side of this sample and realize;
Longitudinal force is to be squeezed in frictional force between the respective side walls on the sample side by each side of sample and elasticity, is being applied on the two opposite longitudinal directions on a pair of opposite sample side;
This sample or its one or more longitudinal separation sections are being carried out sample compression or giving preliminary treatment before compressions, for example through the processing of heat, radio wave or microwave radiation, visible or black light radiation, steam and/or chemistry.
2, wooden sample compression method according to claim 1 is characterized in that, cumulative frictional force system puts on the selection area of the described side surface of this sample.
3, a kind of device that compresses wooden sample, be used for it being compressed based on last texture or machine direction along the wooden sample (46) that stretches, this sample has side and end face, described device comprises a conduit that holds sample, this conduit basically by the engageable and side of supporting sample to prevent angled side walls (30,37,47,48) and first and second end walls (20 of engageable sample corresponding end-faces, 23) form, the device (18) that first end wall (20) is moved towards the direction of second end wall (23), an and control or limit the moving of second end wall so that with the device (26) of wooden sample row compression in limit between first and second end walls
It is characterized in that, described sidewall comprises the first group of sidewall (47 that extends along the sample total length basically, 48), and the second group of sidewall (30 that extends along the sample total length basically, 37), described first group of sidewall (47,48) can be with respect to described second group of sidewall (30,37) vertical shift, described first group of sidewall is connected, move with described first end wall (20) with fixedly connected relation, and described second group of sidewall can be connected, controlled with fixedly connected relation with described second end wall (23);
Described sidewall is pushed in the horizontal by elastic device (32,34), makes it to contact with the side friction of sample;
Described elastic device includes inflatable device (32,34), and the device that the sample end face is applied reverse compression power includes an oil hydraulic cylinder or jack (18);
Described apparatus for compressing wooden sample also comprises:
One basically by a base plate (11), a top board (15), pair of opposing sideplates (12,13) and the compression module (10) that forms of an end plate (14), described base plate, top board and biside plate are static elements, can surround and support described sidewall and described elastic device, described end plate can support the described device that moves first end wall
Described second end wall is kept being still in detachable apparatus in the described module,
Described second group of sidewall braked stopping the device of its displacement in the vertical,
But but be configured in corresponding reduction frictional layer (51,52) between the other parts of device of the sidewall of arbitrary vertical shift and supporting vertical shift sidewall.
As the apparatus for compressing wooden sample as described in the claim 3, it is characterized in that 4, described sidewall (30,37,47,48) is (30,37 and 47,48) opposed sidewall in pairs, each is to being to be connected in maybe to be connected in one of described end wall (20,23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91101200 CN1024264C (en) | 1991-02-23 | 1991-02-23 | Method and apparatus for compressing wooden sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91101200 CN1024264C (en) | 1991-02-23 | 1991-02-23 | Method and apparatus for compressing wooden sample |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1064234A CN1064234A (en) | 1992-09-09 |
| CN1024264C true CN1024264C (en) | 1994-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91101200 Expired - Fee Related CN1024264C (en) | 1991-02-23 | 1991-02-23 | Method and apparatus for compressing wooden sample |
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| Country | Link |
|---|---|
| CN (1) | CN1024264C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3875689B2 (en) * | 2004-01-20 | 2007-01-31 | オリンパス株式会社 | Wood processing methods and processed products |
| US20120160837A1 (en) * | 2010-12-23 | 2012-06-28 | Eastman Chemical Company | Wood heater with enhanced microwave launch efficiency |
| CN106956342B (en) * | 2017-02-08 | 2018-06-22 | 浙江大学 | The shaping equipment and method strengthened suitable for square lumber super-pressure |
| CN107379156B (en) * | 2017-09-15 | 2022-08-05 | 浙江顶丰家具有限公司 | Wood bending device |
| CN111873527B (en) * | 2020-07-15 | 2022-05-03 | 中国核电工程有限公司 | Overpressure machine |
-
1991
- 1991-02-23 CN CN 91101200 patent/CN1024264C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1064234A (en) | 1992-09-09 |
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