阅读说明：本技术 一种板材加工设备的分段式压料机构 (Sectional type swager of panel processing equipment constructs ) 是由 王浩宇 王庭晖 于 2019-09-05 设计创作，主要内容包括：本发明提供了一种板材加工设备的分段式压料机构,包括设置于加工装置一侧两压料机构；两该压料机构均包括一压料支架,该压料支架上设有弹性件以及多个压料件,该压料件活动地安装于该压料支架上；至少一该压料机构的弹性件为气囊,且该气囊连通有一气压传感器；该压料件为套设于该气囊上且通过活动支柱抵触于该气囊上的压料环,或者该压料机构为枢接于该压料支架上且抵触于该气囊上的压块,以气囊作为弹性件,而后气囊连通一气压传感器,以气压监测的方式直接测量压料机构对工件的压力,可以直观监测压力值的大小阈值以及突变情况,其反应出送料打滑以及工件反打等事故情况,其结合机台设备,可以直接停机压紧物料,避免工件飞出,解决了板材砂/刨设备毛坯板压料装置安全性能差的问题。(The invention provides a sectional type pressing mechanism of plate processing equipment, which comprises two pressing mechanisms arranged on one side of a processing device; the two material pressing mechanisms comprise material pressing supports, elastic pieces and a plurality of material pressing pieces are arranged on the material pressing supports, and the material pressing pieces are movably arranged on the material pressing supports; the elastic part of at least one material pressing mechanism is an air bag which is communicated with an air pressure sensor; this pressure material piece is located on this gasbag and is contradicted the pressure material ring on this gasbag through the activity pillar for the cover, perhaps this swager constructs for the pin joint in this presses the briquetting on material support and contradict on this gasbag, regard as the elastic component with the gasbag, then gasbag intercommunication air pressure sensor, with the mode direct measurement swager of atmospheric pressure monitoring to the pressure of work piece, the big or small threshold value and the sudden change condition of monitoring pressure value directly, it reflects the pay-off and skids and the work piece and beats the accident situation such as anti-, it combines board equipment, can directly shut down and compress tightly the material, avoid the work piece departure, the problem that panel sand/plane equipment blank board press device security performance is poor has been solved.)

1. A sectional type pressing mechanism of plate processing equipment comprises two pressing mechanisms arranged on one side of a processing device; the method is characterized in that:

The two material pressing mechanisms comprise material pressing supports, elastic pieces and a plurality of material pressing pieces are arranged on the material pressing supports, and the material pressing pieces are movably arranged on the material pressing supports;

The elastic part of at least one material pressing mechanism is an air bag which is communicated with an air pressure sensor; the pressing piece is a pressing ring which is sleeved on the air bag and is abutted against the air bag through a movable support, or the pressing mechanism is a pressing block which is pivoted on the pressing support and is abutted against the air bag.

2. the segmented swage mechanism of claim 1, wherein: the elastic parts of the two material pressing mechanisms are air bags;

in the feeding direction, the two pressing mechanisms are sequentially arranged behind the processing device to form a first pressing mechanism and a second pressing mechanism;

the pressing pieces on the first pressing mechanism are pressing blocks to form a shoe-type elastic pressing mechanism; the pressing pieces on the second pressing mechanism are pressing rings to form a roller type elastic pressing mechanism.

3. The segmented swage mechanism of claim 2, wherein: the third material pressing mechanism and the fourth material pressing mechanism are sequentially arranged in front of the processing device;

The third material pressing mechanism comprises a mounting bracket, and a compression spring and an integrated pressing block are arranged on the mounting bracket; the integrated pressing block is pivoted on the mounting bracket and abuts against the compression spring; the fourth material pressing mechanism is an integrated roller type material pressing mechanism.

4. The segmented swage mechanism of claim 3, wherein the integral roll swage mechanism comprises two roll axle seats and a swage roll:

The pressing roller is a steel pressing roller or an encapsulated pressing roller;

Two ends of the pressing roller can be movably arranged on the two roller shaft seats up and down, and the roller shaft seats are provided with a pressing spring for pressing the end parts of the pressing roller.

5. The segmented swage mechanism of claim 2, wherein the swage mount of the shoe elastic swage mechanism is a mount having a retaining plate, a cavity and a transverse axis: the fixing plate and the containing cavity are both positioned above the transverse shaft, a first air bag is arranged in the containing cavity, and a first air bag pipeline is communicated with an air pressure sensor;

The cross shaft is provided with a plurality of pressing blocks capable of rotating independently, the upper ends of the pressing blocks extend into the containing cavity and abut against the first air bag to form a matching part, and the lower ends of the pressing blocks protrude out of the bracket obliquely and downwards to form a pressing part for pressing materials.

6. The segmented swage mechanism of claim 5, wherein:

The position of the fixing plate corresponding to each pressing block is provided with a position-adjustable limiting rod, and each limiting rod protrudes into the accommodating cavity and abuts against one side of the matching part departing from the first air bag.

7. The segmented swage mechanism of claim 2, wherein: the pressing support of the roller type elastic pressing mechanism is a supporting pipe, a plurality of pressing rings are sleeved on the supporting pipe, a plurality of through holes are formed in the supporting pipe in the circumferential direction at the corresponding positions of all the pressing rings, movable supporting columns penetrate through the through holes, a second air bag is arranged in an inner cavity of the supporting pipe, and the second air bag is communicated with an air pressure sensor through a pipeline;

After the second air bag is inflated, the movable support can be pushed to abut against the inner wall of the material pressing ring, and the material pressing ring can independently move radially relative to the support tube when being subjected to external force.

8. The segmented swage mechanism of claim 7, wherein: two ends of the supporting tube are provided with shaft heads through flange structures, and at least one shaft head is provided with an air supply hole communicated with the inner cavity of the supporting tube.

9. the segmented swage mechanism of claim 8, wherein: the second air bag is of a barrel-shaped cavity structure, two ends of the inner cavity of the supporting tube are respectively provided with a sealing expansion ring, and the sealing expansion rings are pressed on the inner side of the second air bag to circumferentially compress the wall surface of the second air bag on the inner wall of the supporting tube.

Technical Field

the invention belongs to the technical field of auxiliary pressing devices of machine tools, and particularly relates to a sectional type pressing mechanism of plate processing equipment.

Background

The board is a common material in production and life, and can be divided into steel plates, wood and inorganic salts according to raw materials, wherein the wood can be divided into solid wood and composite wood.

At present, common boards in the market include common sawn solid boards, molded or extruded composite polymer boards, inorganic salt boards and the like, and the boards can generate stress deformation and thickness difference in the molding process, and are commonly referred to as blank boards in the industry.

The blank plate is subjected to fixed thickness shaping processing such as planing, milling or sanding before opening, surface re-pasting or coating, so that the plate surface effect meeting the process requirements can be obtained. During actual processing, a pressing mechanism arranged on planing, milling or sanding equipment is required to realize effective limiting and pressing on a blank plate with larger thickness difference or larger deformation in the feeding process relative to a workbench, and further the blank plate can effectively resist cutting force to realize stable feeding.

Disclosure of Invention

the invention aims to provide a sectional type pressing mechanism of plate processing equipment, which aims to solve the problem of poor safety performance of a blank plate pressing device of plate sand/planing equipment.

the specific scheme is as follows: a sectional type pressing mechanism of plate processing equipment comprises two pressing mechanisms arranged on one side of a processing device;

The two material pressing mechanisms comprise material pressing supports, elastic pieces and a plurality of material pressing pieces are arranged on the material pressing supports, and the material pressing pieces are movably arranged on the material pressing supports;

the elastic part of at least one material pressing mechanism is an air bag which is communicated with an air pressure sensor;

the pressing piece is a pressing ring which is sleeved on the air bag and is abutted against the air bag through a movable support, or the pressing mechanism is a pressing block which is pivoted on the pressing support and is abutted against the air bag.

the further technical scheme of the invention is as follows: the elastic parts of the two material pressing mechanisms are air bags;

In the feeding direction, the two pressing mechanisms are sequentially arranged behind the processing device to form a first pressing mechanism and a second pressing mechanism;

The pressing pieces on the first pressing mechanism are pressing blocks to form a shoe-type elastic pressing mechanism; the pressing pieces on the second pressing mechanism are pressing rings to form a roller type elastic pressing mechanism.

The further technical scheme of the invention is as follows: the third material pressing mechanism and the fourth material pressing mechanism are sequentially arranged in front of the processing device;

the third material pressing mechanism comprises a mounting bracket, and a compression spring and an integrated pressing block are arranged on the mounting bracket; the integrated pressing block is pivoted on the mounting bracket and abuts against the compression spring;

The fourth material pressing mechanism is an integrated roller type material pressing mechanism.

The further technical scheme of the invention is as follows: this integrative roll-type swager constructs includes two roll axle beds and a swager:

the pressing roller is a steel pressing roller or an encapsulated pressing roller;

two ends of the pressing roller can be movably arranged on the two roller shaft seats up and down, and the roller shaft seats are provided with a pressing spring for pressing the end parts of the pressing roller.

the further technical scheme of the invention is as follows: the pressing support of the shoe-type elastic pressing mechanism is a support, and a fixing plate, an accommodating cavity and a cross shaft are arranged on the support:

The fixing plate and the containing cavity are both positioned above the transverse shaft, a first air bag is arranged in the containing cavity, and a first air bag pipeline is communicated with an air pressure sensor;

the cross shaft is provided with a plurality of pressing blocks capable of rotating independently, the upper ends of the pressing blocks extend into the containing cavity and abut against the first air bag to form a matching part, and the lower ends of the pressing blocks protrude out of the bracket obliquely and downwards to form a pressing part for pressing materials.

The further technical scheme of the invention is as follows: the position of the fixing plate corresponding to each pressing block is provided with a position-adjustable limiting rod, and each limiting rod protrudes into the accommodating cavity and abuts against one side of the matching part departing from the first air bag.

The further technical scheme of the invention is as follows: the pressing support of the roller type elastic pressing mechanism is a supporting pipe, a plurality of pressing rings are sleeved on the supporting pipe, a plurality of through holes are formed in the supporting pipe in the circumferential direction at the corresponding positions of all the pressing rings, movable supporting columns penetrate through the through holes, a second air bag is arranged in an inner cavity of the supporting pipe, and the second air bag is communicated with an air pressure sensor through a pipeline;

The second air bag can push the movable support to abut against the inner wall of the material pressing ring after being inflated, and the material pressing ring can independently move radially relative to the support tube when being subjected to external force.

The further technical scheme of the invention is as follows: two ends of the supporting pipe are provided with shaft heads through flange structures, and at least one shaft head is provided with an air supply hole communicated with the inner cavity of the supporting pipe.

The further technical scheme of the invention is as follows: the second air bag is of a barrel-shaped cavity structure, two ends of the inner cavity of the supporting tube are respectively provided with a sealing expansion ring, and the sealing expansion rings are pressed on the inner side of the second air bag to circumferentially compress the wall surface of the second air bag on the inner wall of the supporting tube.

The sectional type material pressing mechanism of the plate processing equipment has the following outstanding advantages that:

(1) The material pressing stability effect is good: all the pressing parts in the sectional type pressing mechanisms can move, and after the air bags are inflated, each pressing mechanism can obtain the same pressure without independent adjustment; and no matter how smooth the surface of the workpiece to be processed is, the workpiece can be effectively contacted with the surface of the workpiece, and constant pressing force is provided, so that the stability and reliability of pressing are improved;

(2) The material pressing acting force is accurately adjusted: when the sectional type material pressing mechanism is used, the working pressure can be adjusted at any time by changing the air pressure of the air bag, the pressure of a workpiece is adjusted more directly, and the accuracy is high;

(3) The material pressing safety performance is high: the air bag is used as an elastic part, the air bag is communicated with an air pressure sensor, the pressure of the material pressing mechanism on a workpiece is directly measured in an air pressure monitoring mode, the size threshold value and the sudden change condition of the pressure value can be visually monitored, the accident conditions of feeding slippage, workpiece reverse beating and the like are reflected, the machine equipment is combined, the machine can be directly shut down to compress the material, the workpiece is prevented from flying out, and the problem that the safety performance of a plate material pressing device of plate sanding/planing equipment is poor is solved.

Drawings

FIG. 1 shows a schematic view of a sectional type pressing mechanism installation principle of a plate processing device according to an embodiment of the invention;

FIG. 2 shows a partial cross-sectional view of a roll-type elastic swage mechanism;

FIG. 3 shows a cross-sectional view at A-A in FIG. 2;

FIG. 4 shows a partial enlarged view of FIG. 2;

FIG. 5 is a schematic view showing the operation of the roll type elastic swaging mechanism;

FIG. 6 shows a front view of a shoe elastic swage mechanism;

FIG. 7 shows a cross-sectional view of FIG. 6;

FIG. 8 shows a cross-sectional view of the alternative operating state of FIG. 7;

Fig. 9 shows a schematic view of the working principle of the shoe elastic swage mechanism.

Detailed Description

to further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

the invention will now be further described with reference to the accompanying drawings and detailed description.

as shown in fig. 1, the present embodiment provides a sectional type pressing mechanism applied to a plate processing apparatus of a sanding apparatus, which includes two pressing mechanisms disposed on a feeding side of a sanding frame 100 of a sanding machine as a processing device;

The two pressing mechanisms are a roller type elastic pressing mechanism 102 and a shoe type elastic pressing mechanism 103 in sequence along the feeding direction, wherein a grinding head 101 for grinding or sanding the material is formed at the lower end of the sand rack 100; the sand rack 100, the roller-type elastic pressing mechanism 102 and the shoe-type elastic pressing mechanism 103 are disposed above a conveyor belt, which is conventional and not shown in the drawings.

referring to fig. 2 to 5, the specific structure of the roller-type elastic pressing mechanism 102 in this embodiment is as follows:

the device comprises a supporting tube 1 used as a material pressing bracket, wherein a plurality of material pressing rings 2 are sleeved on the supporting tube 1, gaps are reserved between every two adjacent material pressing rings 2, and the problem that the adjacent material pressing rings 2 are influenced to move or are blocked due to contact friction is solved through the gaps; in a preferred embodiment, the gap between adjacent press rings 2 is 0.15-0.30mm, such as 0.20mm, 0.25mm, etc. This stay tube 1 has all opened a plurality of through-holes along the circumferencial direction in all the corresponding positions of pressing material ring 2, all wears to be equipped with movable pillar 3 in this through-hole, and when actual assembly, there is certain clearance to ensure to have between the through-hole on movable pillar 3 and the stay tube 1, guarantees that this movable pillar 3 can free activity and do not have the side card problem.

In the mechanism, a second air bag 4 is arranged in the inner cavity of the support tube 1, the second air bag 4 supplies air through an air supply device (not shown in the figure), and the air supply device can adjust the air pressure in the second air bag 4; meanwhile, a second air pressure sensor 105 is further arranged at one end of the second air bag 4, which deviates from the air supply device, specifically, the second air pressure sensor 105 is communicated with the inner cavity of the second air bag 4 through an air pipe so as to directly measure the internal air pressure thereof. The air supply device is a conventional air supply device such as an air compressor, and the second air pressure sensor 105 is also a conventional air pressure detection sensor, and converts an air pressure signal into a digital or analog signal to be transmitted to the machine control device. The volume grow when this second gasbag 4 aerifys inflation to can promote this movable support 3 to remove and lean on the inner wall at this pressure material ring 2 in the stay tube 1 outside, control second gasbag 4 air supply volume through air feeder, adjust the atmospheric pressure and the inflation volume of second gasbag, and then adjust movable support 3 to the size of this pressure material ring 2 holding power, just also can play the pressure size that adjusts pressure material ring 2 and produce the work piece.

As shown in fig. 3, in a conventional state of the mechanism after inflation, the support tube 1 and the swaging ring 2 are concentric; when the material pressing ring 2 is subjected to external force, the material pressing ring 2 can independently move radially relative to the supporting tube 1: when the swaging ring 2 is subjected to an external force F from bottom to top, the position of the supporting tube 1 is unchanged, the second air bag 4 generates certain deformation to further enable the swaging ring 2 to move upwards, and at the moment, the supporting tube 1 and the swaging ring 2 are eccentric; when the external force disappears, the second air bag 4 pushes the pressing ring 2 to reset.

the principle and the technical effect of the mechanism are as follows: after the second air bag 4 is inflated, the second air bag 4 provides the same pressure for all the movable pillars 3 in the circumferential direction, so that the contact position of the inner wall of each material pressing ring 2 and the movable pillars 3 can obtain the same pressure, and the pressure is constant without independent adjustment. When the pneumatic pressure adjusting mechanism is used, the air pressure can be changed through the air supply device at any time to adjust the working pressure of the pneumatic pressure adjusting mechanism, the pneumatic pressure adjusting mechanism is simple and convenient, labor is saved, and the working efficiency is improved. In addition, the mechanism limits the radial movement amount (namely, the dislocation amount in the vertical direction) of the pressing ring 2 within a certain range, and always provides constant pressing force on the upper surface of the contacted workpiece, thereby improving the stability and reliability in pressing, which is also the reason for providing pressure by using the second air bag 4, namely: the air pressure of the second air bag 4 is constant through the air supply device, the problem that pressing force changes when the material pressing ring 2 moves towards different directions is avoided, and the pressure of a workpiece is kept unchanged during material pressing. It is to be noted that: if the pressing force is reduced when the surface of the workpiece is machined, the position of the workpiece cannot be effectively limited, so that the workpiece generates large vibration due to machining, the machining effect of the surface of the workpiece is influenced, the surface of the workpiece is finally unqualified, the rework rate and the rejection rate are improved, and the production cost is greatly improved; on the contrary, if the pressing force becomes large, the smoothness of the movement of the workpiece is affected. Based on the above, therefore, a specific embodiment of the present mechanism is derived. In general, the amount of movement of the swage ring 2 in the vertical direction relative to the support tube 1 is greater than 0mm and equal to or less than 2.5mm, for example, 0.5mm, 1mm, 1.5mm, 2mm, and the like.

Referring to fig. 5, the mechanism is in use mounted on a support 8, the support 8 being mounted on a machine tool which may be a thicknessing machine, a thicknessing sander, a combined sanding machine or the like for thicknessing a blank sheet, in this embodiment a thicknessing sander. The machine tool is provided with a conventional pressing device, the mechanism is matched with the pressing device for use and used for assisting in compressing and limiting a blank plate or similar workpieces, and the machine tool is used for adjusting the height of the workpiece in a lifting mode.

During specific installation: the flange structures are respectively arranged at two ends of the supporting tube 1, the shaft heads 5 are installed at two ends of the supporting tube 1 through the flange structures, the shaft heads 5 are respectively installed on one support 8 during use, and the mechanism is arranged on a machine tool through the two supports 8. In addition, the two shaft heads 5 are provided with air supply holes communicated with the inner cavity of the supporting tube 1, and the second air pressure sensor 105 and the air supply device are respectively communicated to the second air bag 4 through the air supply holes on the two shaft heads 5 for measuring pressure/supplying air. The air supply hole is preferably opened in the axial direction of the stub shaft 5. In order to ensure the sealing performance, a sealing ring 51 is arranged between the shaft head 5 and the flange structures at the two ends of the supporting pipe 1. In order to facilitate the air supply device to supply air to the second air bag 4, an air path rotary joint 6 which can rotate and is sealed with the air supply hole is arranged on the air supply hole of the shaft head 5, one end of the air path rotary joint 6 is communicated with the second air bag 4, and the other end is connected with the air supply device. When the pneumatic support is used, the support tube 1 drives the material pressing ring 2 to rotate along with the shaft head 5, and the air path rotary joint 6 is kept static relatively.

Taking the mechanism for assisting in compressing the blank plate as an example, the upper surface of the blank plate 104 is uneven, the thickness difference is large, and the height of each material pressing ring 2 changes according to the specific condition of the upper surface of the blank plate 104. It is to be noted that: no matter whether the upper surface of the blank plate 104 is flat or not, all the material pressing rings 2 are pressed on the upper surface of the blank plate 104 all the time from the time when the blank plate 104 enters the machine tool for preparation and processing to the time when the processing is finished, and pressing force is constantly generated on the blank plate 104, so that the position stability of the blank plate 104 is ensured; that is, the lowest position of the bottom end of the pressing ring 2 is always lower than the lowest position of the upper surface of the blank board 104, so that the pressing ring 2 always exerts a pressing force on the blank board, and since the pressing ring 2 can freely move and change its position relative to the supporting pipe 1, the processing and position of the blank board 104 are not affected. The number of the binder rings 2 in the drawing is only a specific scheme, and does not represent a specific number in actual use, and the arrangement of a plurality of binder rings 2 means that the number of the binder rings 2 is greater than or equal to 3, for example, 4, 6, 8, 10, 15, and the like.

The mechanism is installed in fixed-thickness sanding equipment and comprises the following specific steps:

(1) The mechanism is assembled first, as shown in fig. 2, because the length of the movable support 3 is larger than the wall thickness of the support tube 1, the movable support 3 is inserted into the through hole of the support tube 1, and the movable support 3 is clamped outside the support tube 1 by using a clamp; then, the second air bag 4 is arranged in the inner cavity of the supporting tube 1 and is sleeved in the material pressing ring 2, and lubricating grease is arranged in front of the movable support 3 and the material pressing ring 2; then, mounting the shaft heads 5 on the flange structures at two ends of the supporting tube 1; and finally, the air path rotary joint 6 is respectively communicated with the air supply device and the second air bag 4.

(2) The height of the material pressing ring 2 and the air pressure of the second air bag 4 in the mechanism are determined according to the actual thickness of the blank plate 104 to be processed and the lowest position of the upper surface of the blank plate 104, then the mechanism is arranged at the feeding end of a machine tool through a support 8, and the support pipe 1 is parallel to the processing table surface of the machine tool after the mechanism is arranged.

(3) The machine tool is provided with a conveyor belt or a conveyor roller, the blank plate 104 enters the machine tool from the right side of the figure, all the material pressing rings 2 of the mechanism generate certain pressure effect (auxiliary limit) on the blank plate 104 from the upper part, the blank plate 104 is stably pressed and guided to enter a processing area during feeding, and the blank plate 104 cannot stop slipping and damage people. Since each press ring 2 is operated individually, even if a plurality of blank plates 104 are simultaneously introduced into the machine side by side, they are subjected to the pressing force of the press ring 2 in the corresponding position.

(4) after the machining of the blank plate 104 is completed, the blank plate is moved out of the machine tool from the left side as shown in fig. 6.

In a preferred embodiment, for convenience of assembly and stability of the structure, the second air bag 4 is a cylindrical structure with two ends penetrating, sealing expansion rings 7 are respectively arranged at two ends of the inner cavity of the support tube 1, the sealing expansion rings 7 press the inner side of the second air bag 4 to press the second air bag 4 against the inner wall of the support tube 1, and the air tightness of the second air bag 4 is ensured through the sealing expansion rings 7.

In a preferred embodiment, the width of the swaging ring 2 is 2-6 times of the diameter of the circumcircle of the cross section of the movable support 3, so as to ensure that the swaging ring 2 can still ensure the position state and the working effect when the support tube 1 axially moves for a certain distance.

the movable support 3 comprises a base plate 31 and a rod part 32 vertically arranged in the middle of the end surface of the base plate 31, the base plate 31 is positioned in the inner cavity of the support tube 1, and the outer diameter of the base plate 31 is larger than the diameter of a through hole on the support tube 1 so as to be convenient for assembly and matching. In practice, the cross-section of the shaft 32 may be circular, oval, polygonal, etc., and preferably the cross-section of the shaft 32 is circular.

In order to ensure that each movable support column 3 generates uniform pressure on the material pressing ring 2 in the circumferential direction so as to provide stable pressing force on the surface of a workpiece in use and keep the whole balance, the through holes on the support tube 1 are uniformly opened in the circumferential direction. When in use, one material pressing ring 2 can be matched with 3, 4, 5, 6, 7, 8 and other movable struts 3 in one circumferential direction for use, and the figure 3 shows only one specific scheme.

in the preferred embodiment, the movable support 3 is made of nylon or PTFE.

With reference to fig. 6 to 9, the specific structure of the shoe elastic swage mechanism 103 in this embodiment is:

What be regarded as the installing support is support 10, be equipped with fixed plate 110, appearance chamber 120 and cross axle 130 along left right direction on support 10, fixed plate 110 with the appearance chamber 120 all is located cross axle 130 top, and fixed plate 110 with the appearance chamber 120 is corresponding in front and back direction position, be equipped with first gasbag 20 in the appearance chamber 120, first gasbag 20 one end is through air feeder (not shown in the figure) air feed, and the other end communicates to second air pressure sensor 106 through the trachea pipeline, and air feeder can adjust the atmospheric pressure size in first gasbag 20 and is monitored and output the measured value by second air pressure sensor 106 in real time, air feeder is conventional air supply equipment such as air compressor. The cross shaft 130 is provided with a plurality of pressing blocks 30 capable of rotating independently, a gap is reserved between every two adjacent pressing blocks 30, and the problem that the rotation of the adjacent pressing blocks 30 is influenced or the pressing blocks are blocked due to contact friction is solved through the gap.

In the device, a position-adjustable limiting rod 1110 is arranged at a position corresponding to the fixing plate 110 and each pressing block 30, and a limiting frame 140 is formed between each limiting rod 1110 and the first air bag 20. The pressing block 30 includes an upper engaging portion 310 and a lower pressing portion 320, and when the pressing block 30 is assembled, the middle of the pressing block 30 is engaged with the horizontal shaft 130, the engaging portion 310 is located upward in the position limiting frame 140, and the pressing portion 320 extends obliquely downward to one side of the fixing plate 110. When the device is used, the initial position of the pressing block 30 is determined through the limiting frame 140, and the method specifically comprises the following steps: after the first air bag 20 is inflated, the position of the limiting rod 1110 on the fixing plate 110 is adjusted, and then the width of the limiting frame 140 (i.e. the distance between the end of the limiting rod close to the air bag side and the air bag) is adjusted, so that the initial position of the matching part 310 of the pressing block 30 in the limiting frame 140 can be determined, and the position of the pressing block 30 is determined. In addition, the volume of the first air bag 20 is increased during inflation and expansion, so that the matching part 310 can be pushed to move (the whole pressing block rotates around the shaft), the air supply pressure of the first air bag 20 is controlled through the air supply device, the air pressure and the expansion volume of the first air bag 20 are adjusted, the supporting force of the pressing block 30 is adjusted, and the pressure generated by the pressing block 30 on a workpiece can be adjusted. When a workpiece contacts the pressing part 320, the pressing block 30 is subjected to an external force from bottom to top, so that the pressing block 30 can be driven to rotate around the transverse shaft 130, and in the rotating process, the matching part 310 generates pressure on the first air bag 20 to enable the first air bag 20 to generate certain deformation (refer to fig. 8), but the position of the limiting rod 1110 is not changed all the time, so that the pressing block 30 can only rotate to the side where the first air bag 20 is located in the initial state; when the external force disappears, the first air bag 20 pushes the pressing block 30 to reset.

The structure principle and the technical effect of the device are as follows: after the first air bag 20 is inflated, the first air bag 20 provides the same pressure to all the pressing blocks 30, and the pressure is constant and does not need to be adjusted independently. According to the lever principle, the first air bag 20 applies an external force to the fitting portion 310, and acts on the upper surface of the workpiece through the pressing portion 320 to form a feeding pressing force. When the air pressure adjusting device is used, the air pressure can be changed through the air supply device at any time to adjust the working pressure of the air pressure adjusting device, the air pressure adjusting device is simple and convenient, labor is saved, and the working efficiency is improved. In addition, the device limits the rotation amount of the pressing block 30 within a certain range, and always provides constant pressing force on the upper surface of the contacted workpiece, so that the stability and the reliability in pressing are improved, which is also the reason for adopting the first air bag 20 to provide pressure by the device, namely: the air supply device is used for realizing constant air pressure of the first air bag 20, so that the problem that pressing force of the pressing block 30 is changed due to rotation is avoided, and the pressure on a workpiece is kept unchanged during pressing. It is to be noted that: if the pressing force is reduced when the surface of the workpiece is machined, the position of the workpiece cannot be effectively limited, so that the workpiece generates large vibration due to machining, the machining effect of the surface of the workpiece is influenced, the surface of the workpiece is finally unqualified, the rework rate and the rejection rate are improved, and the production cost is greatly improved; on the contrary, if the pressing force becomes large, the smoothness of the movement of the workpiece is affected. Based on the above, therefore, a specific embodiment of the present device is derived.

Referring to fig. 9, the device is installed on a machine tool of a fixed-thickness sanding device when in use, and the machine tool can be a press planer and a sanding combined machine for fixed-thickness machining of a blank plate. The conventional pressing device is arranged on the machine tool, and the device is matched with the pressing device for use and used for assisting in compressing and limiting the blank plate or similar workpieces. Taking the example that the device is used for assisting in compressing the blank plate, the upper surface of the blank plate 104 is uneven, the thickness difference is large, and the position height of each pressing block 30 changes according to the specific situation of the upper surface of the blank plate 104. No matter whether the upper surface of the blank plate 104 is flat or not, all the pressing blocks 30 are pressed on the upper surface of the blank plate 104 all the time from the time when the blank plate 104 enters the machine tool for preparation and processing to the time when the processing is finished, and pressing force is constantly generated on the blank plate 104, so that the stable feeding of the blank plate 104 is ensured; that is, the lowest position of the bottom end of the pressing portion 320 of the pressing block 30 is always lower than the lowest position of the upper surface of the blank plate 104, so that the pressing block 30 always presses the blank plate, and since the pressing block 30 can freely rotate and change positions relative to the horizontal shaft 130, the processing and position of the blank plate 104 are not affected. The number of the pressing blocks 30 is only one specific scheme, and does not represent the specific number in actual use, and the plurality of the pressing blocks 30 in the device means that the number of the pressing blocks 30 is more than or equal to 3, such as 6, 8, 10, 15, 20, and the like.

the following description will be made by taking the installation of the device in a fixed-thickness sanding device as an example:

(1) Firstly, the device is assembled, and lubricating grease is arranged in front of the pressing block 30 and the cross shaft 130 during assembly;

(2) The height of the press block 30 and the air pressure of the first air bag 20 in the apparatus are determined according to the actual thickness of the blank board 104 to be processed and the lowest position of the upper surface of the blank board 104, and then the apparatus is installed at the feed end of the sand rack 100, and the transverse shaft 130 is installed to be parallel to the processing table of the machine tool.

(3) The machine tool is provided with a conveyor belt or a conveyor roller, the blank plate 104 enters the machine tool from the right side of the figure, the original pressing device on the machine tool is mainly limited to the blank plate 104, all pressing blocks 30 of the device generate certain pressure effect (auxiliary limiting) on the blank plate 104 from the upper side, and the blank plate 104 is stably compressed and guided to enter a processing area during feeding, so that the blank plate 104 is prevented from pausing and slipping and being damaged by back hitting. Since each press block 30 is operated individually, even if a plurality of blank plates 104 are simultaneously juxtaposed into the machine tool, they are subjected to the pressing force of the press block 30 at the corresponding position.

(4) after the grinding head 101 finishes processing the blank plate 104, it is moved out of the machine tool from the left side. On other machines, for example, a planer tool, a sanding roller are also located at the grinding head 101.

When the clamping device is used, because a gap is reserved between the adjacent pressing blocks 30, the pressing blocks 30 can generate a certain amount of movement in the axial direction of the transverse shaft 130, the use effect cannot be influenced, but some noise can be generated, and large abrasion can be generated after long-time use, so in a preferred embodiment, a protrusion and groove structure which can be mutually buckled together can be arranged between the pressing blocks 30 and the outer surface of the transverse shaft 130, the axial movement of the pressing blocks 30 on the transverse shaft 130 is limited, and the noise and abrasion generated during movement are reduced. In other embodiments, a spring collar may be disposed between adjacent pressing blocks 30, and the position between adjacent pressing blocks 30 is limited by the spring collar, which can also achieve the same technical effect.

in use, the pressing portion 320 is in sliding contact with and presses the surface of the workpiece, so in a preferred embodiment, referring to fig. 2, in order to enable the pressing portion 320 to limit the position of the workpiece and enable the workpiece to smoothly pass through, the bottom surface of the pressing portion 320 is provided with an arc-shaped guide surface, so that the front end of the blank plate can be effectively guided to smoothly enter the pressing area.

in a preferred embodiment, the cavity 120 is provided with an air supply hole 40, an air path connector is provided on the air supply hole 40, one end of the air path connector is communicated with the first air bag 20, and the other end of the air path connector is communicated with an air supply device through an air path pipe.

in a preferred embodiment, the limiting rod 1110 is in threaded fit with the fixing plate 110, so that the structural connection is stable and the adjustment is convenient. The stop lever 1110 is preferably a bolt.

in practical use, the left end and the right end of the support 10 are respectively provided with the mounting seat 9, the mounting seat 9 is provided with a vertical assembling hole, and connecting pieces such as bolts penetrate through the assembling hole to fixedly mount the device on a machine tool.

certainly, in other specific embodiments, the material pressing mechanism of this embodiment may also be matched with a conventional material pressing mechanism, which has a better material pressing effect:

in this embodiment, the elastic members of the two pressing mechanisms, i.e. the roller-type elastic pressing mechanism 102 and the shoe-type elastic pressing mechanism 103, are air bags, and in the feeding direction, the two pressing mechanisms are sequentially arranged behind the processing device, i.e. the sand rack 100, so as to form a first pressing mechanism and a second pressing mechanism, thereby realizing a first pressing of the loaded materials.

when the blank plate 104 enters the sanding/planing machine with fixed thickness, the material pressing in front of the first sanding frame/planing tool is of great importance, because the thickness error of the blank plate is large, the surface flatness is poor, when a plurality of blank plates are arranged in parallel for feeding, the thickness difference exists between the plate and the plate, which not only means that the grinding (planing) removal amount needs to be large, but also the feeding force needs to be large enough, and for the blank plates, all parts on the surface can obtain the same and stable pressure, thereby being the guarantee for obtaining the continuous and reliable feeding force.

The blank board 104 is moved out of the first sand rack/planer roller, because it has been subjected to one sand (planing), the salient points and thickness difference on the board surface have been mostly eliminated, the problem of material pressing failure does not exist basically in the subsequent processing, and the conventional material pressing structure can meet the feeding requirement.

therefore, still include and locate processingequipment in proper order, third swager constructs and fourth swager constructs in the place ahead of sand rack 100 pay-off direction promptly:

In the preferred embodiment, the third pressing mechanism is also a shoe pressing mechanism, which includes a mounting bracket, and two compression springs and an integrated pressing block are arranged on the mounting bracket; the two compression springs are arranged on the front side and the rear side of the transverse direction (vertical to the feeding direction) of the top end of the mounting bracket, the integrated pressing block is pivoted on the mounting bracket through a rotating shaft, the two transverse sides of the top end respectively abut against the two compression springs, the bottom end is inclined downwards, and the mounting bracket protrudes out towards the position of the grinding head 101 so as to press ground materials to the maximum extent;

the fourth material pressing mechanism is a conventional integrated roller type material pressing mechanism, and the specific structure is as follows: this integrative roll-type swager constructs includes two roll axle beds and a swager: the pressing roller is a steel pressing roller or an encapsulated pressing roller; two ends of the pressing roller can be movably arranged on the two roller shaft seats up and down, and the roller shaft seats are provided with a pressing spring for pressing the end parts of the pressing roller.

In the preferred embodiment, the roller and the briquette are integrated, and compared with the finely divided briquette ring and briquette, the roller and the briquette can achieve the abutting compaction in a larger area relative to the workpiece and achieve the guiding effect in the conveying process. For example, the encapsulation roller can be split into three sections or two sections.

this kind of integrative boots formula swager constructs and roll-type swager constructs, with this sectional type swager constructs complex advantage does:

(1) Firstly, a first air bag 20 and a second air bag 4 are used as elastic parts of a front-end pressing mechanism, the first air bag 20 and the second air bag 4 are respectively communicated with a second air pressure sensor 106 and a second air pressure sensor 105 through pipelines, the pressure of the pressing mechanism on a workpiece is directly measured in an air pressure monitoring mode, the size threshold value and the sudden change condition of a pressure value can be visually monitored, the accident conditions such as feeding slippage, reverse beating of the workpiece and the like are reflected, the machine equipment is combined, the machine equipment can be directly stopped to press the material, the workpiece is prevented from flying out, and the problem that the safety performance of a plate pressing device of a plate blank of plate sanding/planing equipment is poor is solved;

(2) Secondly, sectional type swager constructs has and stably presses the material to unevenness blank board 104, the effectual advantage of laminating, but in the engineering reality discovery, it is because self pressure material ring 2 and briquetting 30 have relatively higher elastic displacement, it combines the pressing means of whole pressure shoe and compression roller among the prior art, by the vertical compress tightly of feeding side, ejection of compact side friction direction, the two combines, not only accords with the theory of processing of grinding/sand light, closing device fault rate is low, and has realized the fixed effect of comprehensive compressing tightly and direction.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.