阅读说明：本技术 一种低密度蜂窝板材夹芯制作拉伸成型设备及成型方法 (Low-density honeycomb plate sandwich manufacturing, stretching and forming equipment and forming method ) 是由 胡国文 张云贵 于 2019-11-19 设计创作，主要内容包括：本发明涉及一种低密度蜂窝板材夹芯制作拉伸成型设备及其处理方法,成型设备包括承载台、设置在所述承载台上的拉伸限位机构、设置在所述承载台上的拉伸驱动机构和设置在所述拉伸驱动机构上的一对拉伸夹持机构,所述承载台包括两个竖直的侧板和位于两个所述侧板之间的水平承载板,一对所述拉伸夹持机构关于两个所述侧板的对称面镜像对称设置,且一对所述拉伸夹持机构位于所述承载板的上方,所述拉伸驱动机构可驱动一对所述拉伸夹持机构相向运动或背向运动,所述拉伸限位机构用于限制一对所述拉伸夹持机构向背运动的间距；本发明提供的成型设备可实现限位拉伸,拉伸效果好,保证了拉伸至预定拉伸量,防止了拉伸变形。(The invention relates to a low-density honeycomb panel sandwich manufacturing stretching forming device and a processing method thereof, wherein the forming device comprises a bearing platform, a stretching limiting mechanism arranged on the bearing platform, a stretching driving mechanism arranged on the bearing platform and a pair of stretching clamping mechanisms arranged on the stretching driving mechanism, the bearing platform comprises two vertical side plates and a horizontal bearing plate positioned between the two side plates, the pair of stretching clamping mechanisms are arranged in mirror symmetry relative to the symmetry planes of the two side plates and are positioned above the bearing plate, the stretching driving mechanism can drive the pair of stretching clamping mechanisms to move oppositely or move back to back, and the stretching limiting mechanism is used for limiting the distance between the pair of stretching clamping mechanisms moving back to back; the forming equipment provided by the invention can realize limit stretching, has a good stretching effect, ensures the stretching to a preset stretching amount, and prevents stretching deformation.)

1. The utility model provides a tensile former of low density honeycomb panel core preparation, includes plummer (1), sets up tensile stop gear (2), setting on plummer (1) are in tensile actuating mechanism (3) and setting on plummer (1) are in a pair of tensile fixture (4) on tensile actuating mechanism (3), plummer (1) include two vertical curb plates (11) and are located two horizontal loading board (12) between curb plate (11), its characterized in that: the pair of stretching clamping mechanisms (4) are arranged in mirror symmetry with respect to the symmetry plane of the two side plates (11), the pair of stretching clamping mechanisms (4) are located above the bearing plate (12), the stretching driving mechanism (3) can drive the pair of stretching clamping mechanisms (4) to move towards each other or move away from each other, and the stretching limiting mechanism (2) is used for limiting the distance between the pair of stretching clamping mechanisms (4) moving towards the back, wherein:

tensile fixture (4) is including motion frame (41), drive cylinder (42), stroke slide (43), actuating lever (44), connecting rod (45), grip block (46), cooperation board (47) and interlude pole (48), motion frame (41) includes two L shaped plate (411), fixed mounting two backplate (412) and fixed mounting between L shaped plate (411) are two deflector (413) between L shaped plate (411), two the interior L shape of L shaped plate (411) is close to the outside, two be equipped with slide rail (4111) on the inside wall of L shaped plate (411) respectively, slide rail (4111) is located backplate (412) with between deflector (413), drive cylinder (42) fixed mounting is in the central point of the lateral wall of backplate (412), stroke slide (43) horizontal sliding mounting is two between slide rail (4111), drive actuating cylinder (42)'s output fixed connection be in on stroke slide (43), it has actuating lever (44) to go up along horizontal straight line evenly distributed along stroke slide (43), actuating lever (44) level slidable formula passes deflector (413), every the end of actuating lever (44) all articulates there is two connecting rod (45), is located two on actuating lever (44) connecting rod (45) distribute at the coplanar and about the center pin symmetry of this actuating lever (44), be located two of both sides lean on inboard on actuating lever (44) install on connecting rod (45) articulated respectively clamp plate (46), be located two of both sides lean on the outside on actuating lever (44) install on connecting rod (45) articulated respectively fit plate (47), be located two of both sides every between actuating lever (44) two connecting rod (45) on actuating lever (44) are equallyd divide and are articulated respectively install and are installed what The clamping plate (46), the inserting rod (48) is horizontally and fixedly connected between the two L-shaped plates (411), the central shaft of the inserting rod (48) is perpendicular to the moving direction of the stretching and clamping mechanism (4), and the clamping plate (46) and the matching plate (47) are respectively installed on the inserting rod (48) in a sliding mode.

2. The equipment for making, stretching and forming the low-density honeycomb panel sandwich according to claim 1, is characterized in that: the stretching limiting mechanism (2) comprises two scale guide rods (21) which are fixedly connected between the two side plates (11) and arranged in parallel, two baffle plates (22) which are slidably arranged on the two scale guide rods (21) and a first bidirectional screw rod (23) which is rotatably arranged between the two side plates (11), the two scale guide rods (21) are correspondingly distributed on two sides of the bearing plate (12), the axial direction of the scale guide rods (21) is parallel to the driving direction of the stretching driving mechanism (3), the pair of stretching clamping mechanisms (4) are positioned between the two baffle plates (22), the baffle plates (22) penetrate through the lower part of the bearing plate (12), the two baffle plates (22) are symmetrically arranged relative to the symmetrical surfaces of the two side plates (11), and two length scales extending from the middle zero scale mark are arranged on the scale guide rods (21), the zero scale marks are positioned on the symmetrical surfaces of the two side plates (11), and the two baffles (22) are correspondingly in threaded connection with two sections of threads which are arranged on the first bidirectional screw rod (23) in opposite directions.

3. The equipment for making, stretching and forming the low-density honeycomb panel sandwich according to claim 1, is characterized in that: tensile actuating mechanism (3) are including one of them driving motor (31), horizontal rotation on curb plate (11) lateral wall are installed two-way screw rod (32) between curb plate (11) and fixed connection are two guide arm (33) between curb plate (11), two-way screw rod (32) one end with driving motor's (31) output shaft fixed connection, two lie in two of them one side in tensile fixture (4) L shaped plate (411) correspond threaded connection in two sections screw threads that the direction is opposite to set up on two-way screw rod (32), lie in two of opposite sides L shaped plate (411) slidable mounting respectively on guide arm (33).

4. The equipment for making, stretching and forming the low-density honeycomb panel sandwich according to claim 2, is characterized in that: the both sides of baffle (22) are equipped with vertical ascending spacing separation blade (221) respectively, two spacing separation blade (221) correspond and distribute in the both sides of loading board (12), when a pair of tensile fixture (4) backward motion, spacing separation blade (221) can block relative position L shaped plate (411).

5. The equipment for making, stretching and forming the low-density honeycomb panel sandwich according to claim 2, is characterized in that: and a hand wheel (231) is arranged at the shaft end of one side of the first bidirectional screw rod (23).

6. The equipment for making, stretching and forming the low-density honeycomb panel sandwich according to claim 1, is characterized in that: and friction surfaces (461) are arranged on the opposite surfaces of the two clamping plates (46) arranged on the adjacent connecting rods (45) on the two adjacent driving rods (44).

7. The device for stretch forming of the low-density honeycomb panel sandwich according to any one of claims 1 to 7, wherein: the forming method for carrying out the low-density honeycomb plate sandwich manufacturing and stretch forming by adopting the equipment comprises the following specific steps:

s1, adjusting the stretching limiting mechanism (2): the adjusting and stretching limiting mechanism (2) is used for limiting the back movement distance of the pair of stretching and clamping mechanisms (4) so that the stretching distance corresponds to the stretching width of the honeycomb plate sandwich to be stretched and formed;

s2, clamping the honeycomb plate sandwich: placing the honeycomb strip on a bearing plate (12), and clamping the honeycomb strip between a pair of stretching and clamping mechanisms (4);

s3, stretch forming: the pair of stretching and clamping mechanisms (4) are driven to move back to back through the stretching driving mechanism (3) until the stretching and clamping mechanisms move to the position of the maximum stretching distance limited by the stretching and limiting mechanism (2), and the honeycomb strips are gradually stretched to form a honeycomb plate sandwich while moving back to back;

s4, taking out the formed sandwich: the formed honeycomb plate sandwich is loosened by the pair of stretching and clamping mechanisms (4), and the formed sandwich is taken out.

Technical Field

The invention relates to the technical field of honeycomb plate processing, and particularly provides equipment and a method for manufacturing, stretching and forming a low-density honeycomb plate sandwich.

Background

The honeycomb plate is a plate made by firmly bonding two relatively thin panels on two sides of a relatively thick honeycomb sandwich, and is also called a honeycomb sandwich structure; honeycomb core a low density honeycomb material used as core material of sandwich structure; more than 500 different materials can be used for manufacturing, the main honeycomb core material is aluminum alloy, glass fiber fabric impregnated with resin, aromatic fiber paper, kraft paper, graphite fiber, Kevlar fiber and the like, and the resin content is about 50%; honeycomb cells come in many different shapes, such as hexagonal, rectangular, reinforced, etc., and their performance depends on the material, cell shape and size, etc.

In the honeycomb plate processing production process, the production and processing of honeycomb sandwich is key, the performance and quality of the honeycomb plate are directly influenced, the honeycomb sandwich of fiber materials is usually formed and processed in a stretch forming mode, a fiber fabric is generally processed into honeycomb laminated blocks, then the honeycomb laminated blocks are cut into honeycomb strips, finally the honeycomb strips are stretched to form the honeycomb sandwich with a certain honeycomb hole shape, and the following problems mainly exist in the process of stretching and processing the honeycomb strips into the honeycomb sandwich:

1. in the stretching process, the stretching force is not uniform, and the stretching deformation is easy to occur, namely the honeycomb holes formed by stretching are deformed;

2. during the stretching process, it is not easy to control the stretching amount, so that the stretching is insufficient or excessive.

Based on the problems, the invention provides equipment for manufacturing, stretching and forming a low-density honeycomb plate sandwich and a processing method thereof, and mainly aims to perform stretching and forming processing on the low-density honeycomb sandwich of the honeycomb plate.

Disclosure of Invention

In order to solve the above problems, the present invention provides a stretch forming apparatus and a stretch forming method for manufacturing a low-density honeycomb panel sandwich, which can solve the problems in the background art.

In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose: the utility model provides a tensile former of low density honeycomb panel core preparation, includes the plummer, set up tensile stop gear on the plummer, set up tensile actuating mechanism on the plummer and set up a pair of tensile fixture on tensile actuating mechanism, the plummer includes two vertical curb plates and is located two horizontal loading boards between the curb plate, a pair of tensile fixture sets up about the plane of symmetry mirror symmetry of two the curb plates, and a pair of tensile fixture is located the top of loading board, tensile actuating mechanism can drive a pair of tensile fixture moves or dorsad, tensile stop gear is used for limiting a pair of the interval of tensile fixture motion dorsad, wherein:

the stretching clamping mechanism comprises a motion frame, a driving cylinder, a stroke sliding plate, a driving rod, a connecting rod, a clamping plate, a matching plate and an inserting rod, wherein the motion frame comprises two L-shaped plates, a back plate fixedly installed between the two L-shaped plates and a guide plate fixedly installed between the two L-shaped plates, the inner L-shaped surfaces of the two L-shaped plates are close to the outer side, slide rails are respectively arranged on the inner side walls of the two L-shaped plates, the slide rails are positioned between the back plate and the guide plate, the driving cylinder is fixedly installed at the central position of the outer side wall of the back plate, the stroke sliding plate is horizontally slidably installed between the two slide rails, the output end of the driving cylinder is fixedly connected onto the stroke sliding plate, the driving rod is uniformly distributed on the stroke sliding plate along a horizontal straight line, and the driving rod can, every the end of actuating lever all articulates there is two the connecting rod is located two on the actuating lever the connecting rod distributes at the coplanar and about the center pin symmetry of this actuating lever, is located two of both sides lean on inboard on the actuating lever articulated installing respectively on the connecting rod the grip block is located two of both sides lean on the outside on the actuating lever articulated installing respectively on the connecting rod the cooperation board is located two of both sides every between the actuating lever two connecting rods on the actuating lever are equallyd divide and are do not articulated install the grip block, the horizontal fixed connection of interlude pole is two between the L shaped plate, the center pin of interlude pole with tensile fixture's direction of motion is perpendicular, the grip block with cooperation board slidable mounting respectively is in on the interlude pole.

Preferably, the stretching limiting mechanism comprises two scale guide rods fixedly connected between the two side plates and arranged in parallel, two baffle plates slidably mounted on the two scale guide rods, and a first bidirectional screw rod rotatably mounted between the two side plates, the two scale guide rods are correspondingly distributed on two sides of the bearing plate, the axial direction of the scale guide rod is parallel to the driving direction of the stretching driving mechanism, a pair of stretching clamping mechanisms are positioned between the two baffle plates, the baffle plates penetrate through the lower part of the bearing plate, the two baffles are symmetrically arranged about the symmetrical surfaces of the two side plates, the scale guide rod is provided with two sections of length scales extending from a middle zero scale mark, the zero scale marks are positioned on the symmetrical surfaces of the two side plates, and the two baffles are correspondingly in threaded connection with two sections of threads which are arranged on the first bidirectional screw rod in opposite screwing directions.

Preferably, the stretching driving mechanism comprises a driving motor fixedly mounted on the outer side wall of one of the side plates, a second two-way screw rod horizontally rotatably mounted between the two side plates, and a guide rod fixedly connected between the two side plates, one end of the second two-way screw rod is fixedly connected with an output shaft of the driving motor, two L-shaped plates located on one side of the two stretching clamping mechanisms are correspondingly in threaded connection with two sections of threads oppositely arranged on the second two-way screw rod, and the two L-shaped plates located on the other side are respectively slidably mounted on the guide rod.

Preferably, two sides of the baffle are respectively provided with a vertical upward limiting blocking piece, the two limiting blocking pieces are correspondingly distributed on two sides of the bearing plate, and when the pair of stretching clamping mechanisms move backwards, the limiting blocking pieces can block the L-shaped plates at opposite positions.

Preferably, a hand wheel is arranged at the shaft end of one side of the first bidirectional screw rod.

Preferably, friction surfaces are arranged on the opposite surfaces of the two clamping plates mounted on the adjacent connecting rods on the two adjacent driving rods.

In addition, the invention also provides a method for manufacturing, stretching and forming the low-density honeycomb panel sandwich, which comprises the following steps:

s1, adjusting a stretching limiting mechanism: the stretching limiting mechanism is adjusted and used for limiting the back movement distance of the pair of stretching clamping mechanisms, so that the stretching distance corresponds to the stretching width of the honeycomb plate sandwich to be stretched and formed;

s2, clamping of honeycomb strips: placing the honeycomb strip on a bearing plate, and clamping the honeycomb strip between a pair of stretching and clamping mechanisms;

s3, stretch forming: the stretching driving mechanism drives the pair of stretching and clamping mechanisms to move back to back until the stretching and clamping mechanisms move to the maximum stretching distance limited by the stretching and limiting mechanism, and the honeycomb strips are gradually stretched to form a honeycomb plate sandwich while moving back to back;

s4, taking out the formed sandwich: and the pair of stretching and clamping mechanisms release the formed honeycomb plate sandwich and take out the formed sandwich.

The technical scheme has the following advantages or beneficial effects:

1. the invention provides a stretching forming device for manufacturing a low-density honeycomb plate sandwich, which is characterized in that a pair of stretching clamping mechanisms which are oppositely arranged are adopted to clamp honeycomb strips at two sides, and a plurality of groups of clamping plates which are mutually matched for clamping are uniformly distributed on the stretching clamping mechanisms, so that the acting force of stretching traction is uniformly distributed, the honeycomb holes are prevented from stretching and deforming in the stretching process, two stretching clamping mechanisms can be driven to move by the arranged stretching driving mechanism, automatic stretching can be realized, the stretching effect is good, and the processing efficiency is high.

2. The invention provides a stretching forming device for manufacturing a low-density honeycomb plate sandwich, which is characterized in that a stretching limiting mechanism is arranged in the device, and can be correspondingly adjusted according to the stretching width of a honeycomb sandwich to be stretched and formed, so that a stretching driving mechanism is driven to a limiting position in the stretching process, thereby forming automatic limiting, avoiding the situation of insufficient stretching or excessive stretching in the stretching process, ensuring the stretching to a preset stretching amount, ensuring the stretching effect, and further improving the performance and quality of the honeycomb plate.

Drawings

The invention and its features, aspects and advantages will become more apparent from reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings. The drawings, in which like numerals refer to like parts throughout the several views and which are not necessarily drawn to scale, emphasis instead being placed upon illustrating the principles of the invention.

FIG. 1 is a schematic perspective view of a low-density cellular board sandwich manufacturing stretch forming apparatus according to the present invention at one viewing angle;

FIG. 2 is a schematic perspective view of a low-density cellular board sandwich manufacturing stretch forming apparatus according to the present invention from another viewing angle;

FIG. 3 is a top view of a drawing and forming apparatus for making a low-density cellular board sandwich according to the present invention;

FIG. 4 is a side view of the drawing and forming apparatus for making a low-density cellular board sandwich according to the present invention;

FIG. 5 is a schematic perspective view of the stretching clamping mechanism of the present invention;

fig. 6 is a partially enlarged schematic view at a in fig. 2.

In the figure: 1. a bearing table; 11. a side plate; 12. a carrier plate; 2. a stretching limit mechanism; 21. a scale guide rod; 22. a baffle plate; 221. a limiting baffle plate; 23. a first bidirectional screw; 231. a hand wheel; 3. a tension drive mechanism; 31. a drive motor; 32. a second bidirectional screw; 33. a guide bar; 4. stretching the clamping mechanism; 41. a motion frame; 411. an L-shaped plate; 4111. a slide rail; 412. a back plate; 413. a guide plate; 42. a driving cylinder; 43. a travel slide; 44. a drive rod; 45. a connecting rod; 46. a clamping plate; 461. a friction surface; 47. a mating plate; 48. the rod is inserted.

Detailed Description

The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for the purpose of providing those skilled in the art with a more complete, accurate and thorough understanding of the concept and technical solution of the present invention, and to facilitate the implementation thereof, but not to limit the present invention.

Referring to fig. 1-6, a tensile former of low density honeycomb panel core preparation, including plummer 1, tensile stop gear 2 of setting on plummer 1, tensile actuating mechanism 3 of setting on plummer 1 and a pair of tensile fixture 4 of setting on tensile actuating mechanism 3, plummer 1 includes two vertical curb plates 11 and is located horizontal loading board 12 of welded fastening between two curb plates 11, a pair of tensile fixture 4 sets up about the plane of symmetry mirror symmetry of two curb plates 11, and a pair of tensile fixture 4 is located the top of loading board 12, tensile actuating mechanism 3 can drive a pair of tensile fixture 4 and move or move dorsad, tensile stop gear 2 is used for restricting the interval of a pair of tensile fixture 4 motion dorsad, wherein:

the stretching clamping mechanism 4 comprises a moving frame 41, a driving cylinder 42, a stroke sliding plate 43, a driving rod 44, a connecting rod 45, a clamping plate 46, a matching plate 47 and an inserting rod 48, wherein the moving frame 41 comprises two L-shaped plates 411, a back plate 412 fixedly installed between the two L-shaped plates 411 in a welding mode and a guide plate 413 fixedly installed between the two L-shaped plates 411 in a welding mode, the inner L-shaped surfaces of the two L-shaped plates 411 are close to the outer side, slide rails 4111 are respectively arranged on the inner side walls of the two L-shaped plates 411, the slide rails 4111 are located between the back plate 412 and the guide plate 413, the driving cylinder 42 is fixedly installed at the central position of the outer side wall of the back plate 412, the stroke sliding plate 43 is horizontally and slidably installed between the two slide rails 4111, the output end of the driving cylinder 42 is fixedly connected to the stroke sliding plate 43, ten, the tail end of each driving rod 44 is hinged with two connecting rods 45, the two connecting rods 45 on the driving rods 44 are distributed on the same plane and are symmetrical about the central axis of the driving rod 44, the two driving rods 44 on the two sides are respectively hinged with a clamping plate 46 on the connecting rod 45 close to the inner side, the two driving rods 44 on the two sides are respectively hinged with a matching plate 47 on the connecting rod 45 close to the outer side, the two connecting rods 45 on each driving rod 44 between the two driving rods 44 on the two sides are respectively hinged with a clamping plate 46, the inserting rod 48 is horizontally and fixedly connected between the two L-shaped plates 411, the central axis of the inserting rod 48 is perpendicular to the movement direction of the stretching clamping mechanism 4, and the clamping plate 46 and the matching plate 47 are respectively slidably mounted on the inserting rod 48. The cooperation board 47 distributes in both sides position, and the grip block 46 distributes between two cooperation boards 47, and concrete distribution position relation is as shown in figure 5, and cooperation board 47 plays the mating action for the atress of the system that whole actuating lever 44 and connecting rod 45 are constituteed is more balanced, and in this tensile fixture 4, two adjacent grip blocks 46 cooperation play the clamping action to the honeycomb on two adjacent actuating levers 44.

After the stretching limiting mechanism 2 is adjusted, the honeycomb bar can be clamped in a pair of stretching clamping mechanisms 4 which are arranged oppositely, specifically, the stretching driving mechanism 3 drives the two stretching clamping mechanisms 4 to enable the two stretching clamping mechanisms 4 to move oppositely to proper spacing positions (the proper spacing positions refer to that the two stretching clamping mechanisms 4 can clamp the honeycomb bar), then the driving air cylinder 42 is started, the output end of the driving air cylinder 42 is contracted, the stroke sliding plate 43 is pulled to slide towards the direction close to the driving air cylinder 42, the driving rods 44 on the stroke sliding plate 43 move synchronously, so that the driving rods 44 pull the connecting rods 45, the included angle of the connecting rods 45 is reduced, due to the limiting effect of the inserting rods 48, the clamping plates 46 hinged on the two connecting rods 45 on the same driving rod 44 slide towards each other on the inserting rods 48, correspondingly, the two adjacent clamping plates 46 on the two adjacent driving rods 44 slide back towards each other, therefore, the distance between the two clamping plates 46 which slide back to back is increased, the stretching traction edge of the honeycomb strip can be sequentially placed between each two clamping plates 46 which slide back to back and open, then the clamping plates 46 are driven to slide by the driving air cylinder 42 again to clamp and clamp the stretching traction edge of the honeycomb strip, obviously, the process that the driving air cylinder 42 drives the adjacent clamping plates 46 on the two adjacent driving rods 44 to open and clamp is a corresponding opposite movement process, so that the clamping action process is not repeated, as shown in fig. 1, the two connecting rods 45 on each driving rod 44 are in a one-hundred-eighty degree included angle state, and a completely clamped state is presented. The clamping plates 46 which are uniformly distributed are arranged in the stretching and clamping mechanism 4, so that the clamping and drawing positions are uniformly distributed, the stretching stress points of the honeycomb strips are more uniformly distributed, and finally the honeycomb plate sandwich formed by stretching is not stretched and deformed.

Furthermore, the stretching limiting mechanism 2 comprises two scale guide rods 21 fixedly connected between the two side plates 11 in a welding manner and arranged in parallel, two baffle plates 22 arranged on the two scale guide rods 21 in a sliding manner, and a first bidirectional screw 23 rotatably arranged between the two side plates 11, the two scale guide rods 21 are correspondingly distributed on two sides of the bearing plate 12, the axial direction of the scale guide rods 21 is parallel to the driving direction of the stretching driving mechanism 3, the pair of stretching clamping mechanisms 4 is positioned between the two baffle plates 22, the baffle plates 22 penetrate through the lower part of the bearing plate 12, the two baffle plates 22 are symmetrically arranged relative to the symmetrical surfaces of the two side plates 11, two length scales extending from a middle zero scale line are arranged on the scale guide rods 21, the zero scale line is positioned on the symmetrical surfaces of the two side plates 11, the two baffle plates 22 are correspondingly connected on two threads oppositely arranged on the first bidirectional screw 23 in a threaded, a hand wheel 231 is arranged at the shaft end of one side of the first bidirectional screw rod 23. Two length scales on the scale guide rod 21 can be used for identifying the positions of the two baffles 22, and the length scales of the positions corresponding to the two baffles 22 are the same.

Before carrying out stretch forming, need adjust stretch stop gear 2 according to the tensile width of the honeycomb panel core that will stretch, it is concrete, can drive bidirectional screw 23 through rotating hand wheel 231 and rotate, thereby two baffles 22 will be driven to two opposite screw threads that set up on bidirectional screw 23 No. one, thereby make two baffles 22 move in opposite directions or dorsad, then change two baffles 22's relative interval, specific interval can correspond and directly read on scale guide arm 21, two baffles 22 of good interval of adjustment can make tensile actuating mechanism 3 at the tensile in-process of drive, avoid stretch forming not in place on the one hand, on the other hand has avoided tensile excessively, make by tensile honeycomb strip can reach predetermined tensile width.

Further, the stretching driving mechanism 3 comprises a driving motor 31 fixedly mounted on the outer side wall of one of the side plates 11 through a bolt, a second two-way screw 32 horizontally and rotatably mounted between the two side plates 11, and a guide rod 33 fixedly connected between the two side plates 11 by welding, one end of the second two-way screw 32 is fixedly connected with an output shaft of the driving motor 31, two L-shaped plates 411 on one side of the two stretching clamping mechanisms 4 are correspondingly and threadedly connected to two sections of threads oppositely arranged on the second two-way screw 32, and the two L-shaped plates 411 on the other side are respectively and slidably mounted on the guide rod 33.

The stretching driving mechanism 3 is mainly used for stretching and forming, specifically, after the honeycomb strips are clamped in the two stretching clamping mechanisms 4, the honeycomb strips can be driven to be stretched, the driving motor 31 is started, the driving motor 31 drives the second two-way screw 32 to rotate, two sections of threads which are oppositely arranged on the second two-way screw 32 in the rotating direction correspondingly drive the two stretching clamping mechanisms 4, so that the two stretching clamping mechanisms 4 move back to back at a constant speed, the two stretching clamping mechanisms 4 pull two sides of the honeycomb strips to stretch slowly at a constant speed in the process of back movement, and when the limit position of the stretching limiting mechanism 2 is reached, the honeycomb strips are completely stretched and formed to form a honeycomb plate sandwich; under the drive of the stretching driving mechanism 3, the honeycomb strip can realize automatic stretching forming.

Furthermore, two sides of the baffle 22 are respectively provided with a vertically upward limiting blocking piece 221, the two limiting blocking pieces 221 are correspondingly distributed on two sides of the bearing plate 12, and when the pair of stretching clamping mechanisms 4 moves backwards, the limiting blocking pieces 221 can block the L-shaped plate 411 at the opposite position. The baffle 22 is specifically blocked and limited by a limit stop piece 221.

Further, friction surfaces 461 are provided on the opposite surfaces of the two holding plates 46 mounted on the adjacent links 45 of the adjacent two driving levers 44. The friction surface 461 directly contacts with the traction edge of the honeycomb strips after the honeycomb strips are clamped, and the contact friction force is improved, so that the friction surface can be prevented from being separated from the stretching and clamping mechanism 4 when the honeycomb strips are driven to stretch.

In addition, the invention also provides a method for manufacturing, stretching and forming the low-density honeycomb plate sandwich, which comprises the following steps:

s1, adjusting the stretching limiting mechanism 2: the stretching limiting mechanism 2 is adjusted to limit the back movement distance of the pair of stretching clamping mechanisms 4, so that the stretching distance corresponds to the stretching width of the honeycomb plate sandwich to be stretched and formed;

s2, clamping of honeycomb strips: placing the honeycomb strips on the bearing plate 12, clamping the honeycomb strips between a pair of stretching clamping mechanisms 4, and specifically clamping the stretching traction edges of the honeycomb strips between adjacent matched clamping plates 46;

s3, stretch forming: the stretching driving mechanism 3 drives the pair of stretching clamping mechanisms 4 to move back to back until the stretching clamping mechanisms move to the maximum stretching distance limited by the stretching limiting mechanism 2, and the honeycomb strips are gradually stretched to form a honeycomb plate sandwich while moving back to back;

s4, taking out the formed sandwich: the pair of stretching and clamping mechanisms 4 loosens the formed honeycomb plate sandwich and takes out the formed sandwich.

Those skilled in the art will appreciate that variations may be implemented by those skilled in the art in combination with the prior art and the above-described embodiments, and will not be described in detail herein. Such variations do not affect the essence of the present invention and are not described herein.

The above description is of the preferred embodiment of the invention. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; it will be understood by those skilled in the art that various changes and modifications may be made, or equivalents may be modified, without departing from the spirit of the invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.