Method for producing special-shaped bending of bamboo products and production equipment thereof

Abstract

The present application relates to a kind of bamboo product special-shaped bending production method, comprising the following steps: S1: bamboo strip raw material is according to predetermined size and is carried out preliminary sawing processing treatment, and surface deburring treatment is carried out;S2: bamboo strip is wet heated softening treatment;S3: the setting chain is connected with the outside of bamboo strip and is sent into bending device and is bent;S4: bamboo strip is bent by the cooperation of inner mold and outer mold in bending device, while bamboo strip is wet heated softening treatment;S5: bamboo strip is bent to specified angle, and the setting chain is locked;S6: bamboo strip and setting chain are taken out from inner mold, and are transported out of bending device;S7: bamboo strip is cooled, dried;S8: when bamboo strip is dried and cooled hardening, open setting chain, and take out the bamboo strip that bends is completed.The beneficial effects of the present application are: effectively reduce the possibility of bamboo strip breakage when bending, even if the angle of bending is greater than 90 degrees, it is not easy to break.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bamboo product production and processing, and particularly relates to a production method and production equipment for special-shaped bending of bamboo products. BACKGROUND

[0002] A bamboo product refers to a product manufactured by taking bamboo as a processing raw material. The bamboo itself has good toughness, and thus can be bent and woven into various shaped articles. However, for bamboo with a relatively large cross section or bamboo with a relatively large bending angle, softening needs to be performed before bending.

[0003] The existing softening method generally heats the bending position by fire, so as to soften the bamboo and facilitate bending. However, the fire heating method needs to have rich experience to master the temperature, time, and distance from the flame, and has high production difficulty and low production efficiency. SUMMARY

[0004] In view of the problems in the prior art, the present application aims to provide a production method and production equipment for special-shaped bending of bamboo products, so as to solve the above problems.

[0005] The technical scheme of the present application is implemented as follows: a production method for special-shaped bending of bamboo products, comprising the following steps:

[0006] S1: performing preliminary sawing processing on bamboo strip raw materials according to predetermined dimensions, and performing deburring treatment on the surface;

[0007] S2: performing wet heating softening treatment on the bamboo strip;

[0008] S3: sleeving a sizing chain with a clamping sleeve on the outer side of the bamboo strip and feeding the bamboo strip into a bending device for bending;

[0009] S4: simultaneously performing wet heating softening treatment on the bamboo strip while bending the bamboo strip by cooperation of an inner mold and an outer mold in the bending device;

[0010] S5: after the bamboo strip is bent to a specified angle, performing buckling and locking of the sizing chain;

[0011] S6: taking out the bamboo strip and the sizing chain from the inner mold and feeding the bamboo strip out of the bending device;

[0012] S7: performing cooling and drying of the bamboo strip;

[0013] S8: after the bamboo strip is dried, cooled, and hardened, opening the sizing chain and taking out the bent bamboo strip.

[0014] By adopting the technical scheme, the wet heating can heat the bamboo strips and increase the humidity of the bamboo strips, and the toughness is improved, so that the possibility of breaking of the bamboo strips when being bent is effectively reduced, and the bamboo strips are not easy to break even when the bending angle is greater than 90 degrees; the shaping chain is installed on the bamboo strips when the bamboo strips are not bent, and is bent along the shape of the bamboo strips along with the bending of the bamboo strips, when the bending of the bamboo strips is completed, the two ends of the bamboo strips are closed, and the two ends of the shaping chain are matched and buckled to be locked, so that the bent bamboo strips are shaped, and the bamboo strips are prevented from resetting due to the elasticity of the bamboo strips, when the shaping of the bamboo strips is completed, the shaping chain is opened and removed from the bamboo strips, and the shaping chain can effectively shorten the processing time of the bamboo strips in the bending device, and the bending of the bamboo strips does not need to be loosened after the shaping of the bamboo strips is completed.

[0015] The application is further provided that the wet heating in steps S2 and S4 is all jet hot steam heating, and the temperature of the hot steam is 100-120 DEG C.

[0016] By adopting the technical scheme, the jet hot steam can effectively heat and humidify the bamboo strips, and the processing is very convenient and the cost is low.

[0017] A production equipment for special-shaped bending of bamboo products, comprising:

[0018] A shaping chain is sleeved on the outer side of the bamboo strips for shaping the bent bamboo strips, and the end of the shaping chain is arranged close to the end of the bamboo strips.

[0019] A bending device is used for bending processing of the bamboo strips and locking of the shaping chain.

[0020] By adopting the technical scheme, after the bending of the bamboo strips in the bending device is completed, the shaping chain on the outer side of the bamboo strips is locked by the bending device, so that the bent bamboo strips are positioned and fixed, and then the bamboo strips are removed from the bending device, placed for shaping, cooled and hardened, and then the shaping chain is opened and removed from the bamboo strips, so that the bamboo strips do not need to be shaped for a long time in the bending device before being removed, and the processing efficiency is effectively improved.

[0021] The application is further provided that the bending device comprises:

[0022] A workbench is provided with a machine cover, and an inlet and an outlet are respectively arranged on the two sides of the machine cover.

[0023] An inner mold is arranged on the workbench, the inner mold is hollow in the inside, and a plurality of gas outlets are arranged on the periphery of the inner mold.

[0024] An outer mold is arranged outside the inner mold, and the outer mold is provided with a groove corresponding to the corner of the outer wall of the inner mold on the side facing the inner mold. The groove is provided with an air outlet mechanism that is turned on after being subjected to external pressure. The outer mold is driven by a pneumatic cylinder to move closer to or away from the inner mold and bend the bamboo strips.

[0025] A feeding roller set is arranged at the inlet of the machine cover. The feeding roller set is used to fit the shaping chain on the outside of the bamboo strips and transport them between the inner mold and the outer mold.

[0026] The gap between the inner mold and the outer mold is used to accommodate the bamboo strips fitted with the shaping chain.

[0027] According to the above technical scheme, one end of the shaping chain is first fitted on one end of the bamboo strips, and then fed into the feeding roller set. Through the extrusion and transportation of the feeding roller set, the subsequent shaping chains are fitted on the outside of the bamboo strips and transported to the workbench between the inner mold and the outer mold. Then, through the action of the multiple outer molds, the bamboo strips fitted with the shaping chain are pressed on the inner mold, so that the bamboo strips are bent along the shape of the inner mold. At the same time of bending the bamboo strips, the air outlet holes of the inner mold and the air outlet mechanism of the outer mold both spray hot steam to heat the bamboo strips. The air outlet mechanism can not spray hot steam when the groove is not in contact with the bamboo strips, and only spray hot steam when the groove is in contact with the bamboo strips. The sprayed hot steam can effectively act on the bamboo strips, effectively avoiding the waste of hot steam.

[0028] The bending device further comprises:

[0029] A steam generating device;

[0030] An air suction cover arranged above the inside of the machine cover;

[0031] An air suction machine;

[0032] A heating mechanism;

[0033] The outer mold is provided with a gas guide channel connected with the air outlet mechanism. The gas guide channel is connected with the air outlet end of the steam generating device. The air suction machine extracts the hot steam in the machine cover through the air suction cover, heats it through the heating mechanism, and then transports it into the inner mold.

[0034] By adopting the technical scheme, the hot steam sent by the hot steam generating device enters the air outlet mechanism of the outer mold first, when the air outlet mechanism is conducted, the hot steam is sprayed to heat the bamboo strips, then the hot steam enters between the workbench and the machine cover, then the air suction machine generates negative pressure to extract the hot steam through the air suction cover, after the hot steam is heated to the specified temperature through the heating mechanism, the hot steam is sent into the inner mold, is sprayed through the air outlet hole on the inner mold and acts on the inner side of the bamboo strips, so that the inner and outer sides of the bamboo strips are heated and moisturized when the bamboo strips are bent, the utilization rate of the hot steam is effectively improved, the hot steam can flow circularly, the hot steam can be effectively supplemented through the hot steam generating device, and the shortage of the hot steam and humidity is avoided.

[0035] The application is further provided as follows: the air outlet mechanism comprises:

[0036] The outer pipe is hollow inside and penetrates at both ends, air inlets and air outlets are arranged at both ends of the outer pipe respectively, the air outlet is arranged close to the groove bottom, the air inlet is communicated with the air guide channel, limit plates, sealing bosses and crossbars are arranged on the inner wall of the outer pipe in sequence from the air inlet to the air outlet, and a plurality of second air guide holes are arranged on the limit plates;

[0037] The first sealing block is in the shape of a circular truncated cone, the smaller-diameter end of the first sealing block is arranged to protrude towards the air outlet and is provided with a stress column, and the stress column protrudes from the air outlet;

[0038] The second sealing block is in the shape of a circular truncated cone, the second sealing block is hollow inside and is provided with a cavity for the first sealing block to enter, the smaller-diameter end of the second sealing block is arranged to protrude towards the air outlet and is provided with a first through hole matched with the first sealing block in the middle, and a plurality of first air guide holes communicated with the cavity are arranged on the end of the second sealing block towards the air inlet;

[0039] The inner wall of the sealing boss is matched with the outer wall of the second sealing block, the second sealing block is arranged between the limit plate and the sealing boss, a sliding hole is arranged on the crossbar for the stress column to slide through, a spring is arranged between the second sealing block and the limit plate, and the distance between the stress column and the groove bottom is greater than the moving distance of the first sealing block in the cavity.

[0040] When the force bearing column is in contact with or is extruded by the bamboo strips or the shaped chain, the force bearing column drives the first sealing block to move towards the air inlet, so that the first through hole is opened. At this time, the hot steam in the air guide channel will be sprayed out from the air outlet in sequence through the air inlet, the second air guide hole, the first air guide hole, the cavity and the first through hole. The sprayed hot steam acts on the bending place of the bamboo strips, ensures the bending effect and makes it difficult to break. Then, as the force bearing column continues to be extruded, the first sealing block moves to the bottom in the cavity and abuts against the second sealing block, then drives the second sealing block to move towards the air inlet, so that the second sealing block is separated from the sealing boss, and the hot steam flows from the gap between the second sealing block and the sealing boss as well as the first air guide hole, the cavity and the first through hole, thereby increasing the flow amount.

[0041] The bending device further comprises:

[0042] The jacking rod is arranged around the inner mold and penetrates the workbench and is driven to stretch up and down by the air cylinder.

[0043] The discharging mechanism comprises a clamping air cylinder, a telescopic air cylinder and a discharging track mechanism. The discharging track mechanism is arranged on the upper side of the inner side of the machine cover. The telescopic air cylinder is fixed on the sliding block of the discharging track mechanism. The clamping air cylinder is arranged in plurality and is connected to the output shaft of the telescopic air cylinder through the connecting plate. The discharging mechanism is arranged above the inner mold.

[0044] The locking press plate is driven by the air cylinder to approach or move away from the end of the bent bamboo strip. The locking press plate is arranged on one side of the inner mold.

[0045] When the bamboo strips are bent by the step-by-step action of the plurality of outer molds, the two ends of the shaped chain are matched with each other, and then the locking is completed under the action of the locking press plate. Then, the jacking rod moves upward, moves upward the bamboo strip sleeved on the outer side of the inner mold, and separates the bamboo strip and the shaped chain from the inner mold. Then, the discharging mechanism clamps the bamboo strip and the shaped chain by the clamping air cylinder and moves to discharge to the outside of the bending device for cooling and shaping, so as to realize discharging.

[0046] The shaped chain comprises:

[0047] The main frame is arranged in the shape of a Chinese character "fang". The main frame comprises a horizontal part and a vertical part. Two horizontal parts are arranged on the same side of the vertical part. The vertical part is uniformly provided with a plurality of third air guide holes.

[0048] connecting strips, two ends of the connecting strips are rotatably connected to the transverse parts on the same side of the two adjacent main frames;

[0049] clamping mechanisms, the clamping mechanisms comprise clamping parts and connecting parts, the clamping parts are two and are perpendicularly connected to two ends of the connecting parts respectively, the connecting parts are attached to the inner sides of the vertical parts, and a plurality of fourth air guide holes are uniformly arranged on the connecting parts;

[0050] The main frames are equidistantly arranged along the length direction of the bamboo strips, the adjacent main frames are rotatably connected through the connecting strips, the clamping mechanisms are arranged on the inner sides of the main frames and are used for clamping the bamboo strips between the two clamping parts, the main frames at the ends of the shaping chains are provided with locking mechanisms, and the connecting parts are fixed on the main frames.

[0051] By adopting the technical scheme, the main frames are connected through the connecting strips, so that the shaping chains can be bent along with the bending of the bamboo strips, the shaping chains can be adapted to bamboo strips of various shapes, the clamping mechanisms can effectively clamp and fix the shaping chains on the bamboo strips and are not easy to be separated, the locking mechanisms can connect the two ends of the shaping chains after the bamboo strips are bent, so that the bamboo strips are limited, and the hot steam sprayed by the outer mold can act on the positions of the bamboo strips through the third air guide holes and the fourth air guide holes, so that the heating and humidifying effects on the bamboo strips are better.

[0052] The clamping part comprises, in sequence, a first U-shaped part, a first connecting part, a contact part, a second U-shaped part, a second connecting part and a bending part.

[0053] a back plate, one end of the back plate is perpendicularly connected to the end of the connecting part, and the back plate is attached to the inner side of the transverse part;

[0054] the first U-shaped part, the first U-shaped part is arranged in a "U" shape, one end of the first U-shaped part is connected to one end of the back plate, and the other end of the first U-shaped part extends towards the connecting part;

[0055] the first connecting part;

[0056] the contact part, the contact part is arranged in an arc shape and protrudes away from the back plate;

[0057] the second U-shaped part, the second U-shaped part is arranged in a "U" shape, one end of the second U-shaped part is connected to one end of the contact part, and the other end of the second U-shaped part extends towards the first U-shaped part;

[0058] the second connecting part;

[0059] the bending part, one end of the bending part is connected to one end of the second connecting part, and the other end of the bending part is arranged in a bending shape towards the back plate;

[0060] The support part is arranged in a circular arc shape towards one side of the back plate and is in contact with the inner side of the back plate;

[0061] When the bamboo strip is installed between the two clamping parts, the abutting part is pressed on the outer wall of the bamboo strip, the support part is pressed on the back plate, and the second connecting part and the bending part have a gap with the back plate under the action of the bending part, thereby reducing the deformation of the second connecting part and maintaining good elasticity of the clamping part even after long-term use.

[0062] When the bamboo strip is installed between the two clamping parts, the abutting part is pressed on the outer wall of the bamboo strip, the support part is pressed on the back plate, and the second connecting part and the bending part have a gap with the back plate under the action of the bending part, thereby reducing the deformation of the second connecting part and maintaining good elasticity of the clamping part even after long-term use.

[0063] The locking mechanism comprises:

[0064] The connecting rod is arranged on one side of the main frame at one end of the shaping chain along the length direction of the bamboo strip, the end of the connecting rod is vertically connected with a rotating shaft, the rotating shaft is rotatably connected with a rotating roller, and the length direction of the rotating shaft is parallel to the length direction of the vertical part.

[0065] The locking groove is arranged on the outer side of the main frame at the other end of the shaping chain, and a slope is arranged on the side slot of the locking groove close to the connecting rod when the bamboo strip is bent, the distance between the top of the slope and the other side slot is greater than the distance between the bottom of the slope and the other side slot.

[0066] The diameter of the rotating roller is smaller than the distance between the bottom of the slope and the other side slot and the distance between the bottom of the slope and the bottom of the locking groove, a notch is arranged on the main frame where the locking groove is arranged for placing the connecting rod, and the notch is communicated with the locking groove.

[0067] When the bamboo strip is bent, one end of the main frame with the locking groove on the bamboo strip is first pressed on the inner mold, and then the other end of the bamboo strip is bent down, so that the rotating roller is located at the top of the slope, then the locking plate is moved to approach and contact the connecting rod and is pressed, under the pressing action of the locking plate, the rotating roller rolls down along the slope until it enters the locking groove, thereby completing the locking; when the bamboo strip cools and hardens, the rotating roller is removed from the locking groove, the locking is released, then the shaping chain is removed from the bamboo strip, and the bending process is completed. BRIEF DESCRIPTION OF DRAWINGS

[0068] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor under the premise of the accompanying drawings.

[0069] Figure 1 It is the top view of the internal structure of the embodiment of the present application.

[0070] Figure 2 It is the action schematic of the embodiment of the present application. Figure One

[0071] Figure 3 It is the action schematic of the embodiment of the present application. Figure Two

[0072] Figure 4 It is the action schematic of the embodiment of the present application. Figure Three

[0073] Figure 5 It is the structural schematic of A in the embodiment of the present application. Figure 1

[0074] Figure 6 It is the structural schematic of B in the embodiment of the present application. Figure 4

[0075] Figure 7 It is the structural principle diagram of the bending device in the embodiment of the present application.

[0076] Figure 8 It is the front view of the internal structure of the embodiment of the present application.

[0077] Figure 9 It is the local structural schematic when the shaping chain and the bamboo strip cooperate in the embodiment of the present application. Figure One

[0078] Figure 10 It is the local structural schematic when the shaping chain and the bamboo strip cooperate in the embodiment of the present application. Figure Two

[0079] Figure 11 It is the local structural schematic of the shaping chain in the embodiment of the present application.

[0080] Figure 12 It is the structural sectional view when the shaping chain and the bamboo strip cooperate in the embodiment of the present application.

[0081] Figure 13 It is the structural sectional view of the shaping chain in the embodiment of the present application.

[0082] ​​​​​​​Figure 14 Figure 1 is a schematic view of the end structure of the fixed chain and the bamboo strip in the embodiment of the present application Figure Two

[0083] Figure 15 Figure 2 is a schematic view of the structure of C in the embodiment of the present application. Figure 4 Figure 3 is a schematic view of the structure of C in the embodiment of the present application. DETAILED DESCRIPTION

[0084] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0085] As shown in Figures 1-15 the present application discloses a production method of a bamboo product with special-shaped bending, comprising the following steps:

[0086] S1: The bamboo strip raw material is preliminarily sawn according to the predetermined size, and the surface is deburred;

[0087] S2: The bamboo strip is subjected to wet heating softening treatment;

[0088] S3: The fixed chain clamping sleeve is arranged outside the bamboo strip and sent into the bending device for bending;

[0089] S4: The bamboo strip is bent while being subjected to wet heating softening treatment by the cooperation of the inner mold and the outer mold in the bending device;

[0090] S5: After the bamboo strip is bent to the specified angle, the fixed chain is buckled and locked;

[0091] S6: The bamboo strip and the fixed chain are taken out of the inner mold and transported out of the bending device;

[0092] S7: The bamboo strip is cooled and dried;

[0093] S8: When the bamboo strip is dried, cooled and hardened, the fixed chain is opened, and the bent bamboo strip is taken out.

[0094] ​By adopting the technical scheme, the wet heating can heat the bamboo strips and increase the humidity of the bamboo strips, and the toughness is improved, so that the possibility of breakage of the bamboo strips when being bent is effectively reduced, and the bamboo strips are not easy to break even when the bending angle is greater than 90 degrees; the shaping chain is installed on the bamboo strips when the bamboo strips are not bent, and is bent along the shape of the bamboo strips as the bamboo strips are bent, when the bending of the bamboo strips is completed, the two ends of the bamboo strips are closed, and the two ends of the shaping chain are close to each other and buckled and locked, so that the bent bamboo strips are shaped, and the bamboo strips are prevented from resetting due to the elasticity of the bamboo strips, when the shaping of the bamboo strips is completed, the shaping chain is opened and removed from the bamboo strips, and the shaping chain can effectively shorten the processing time of the bamboo strips in the bending device, and the bending of the bamboo strips does not need to be released after the shaping of the bamboo strips is completed.

[0095] In the embodiment of the present application, the wet heating in steps S2 and S4 is all jet hot steam heating, and the temperature of the hot steam is 100-120 DEG C.

[0096] By adopting the technical scheme, the jet hot steam can effectively heat and humidify the bamboo strips, and the processing is very convenient and the cost is low.

[0097] A production equipment for special-shaped bending of bamboo products, comprising:

[0098] A shaping chain 5 is clamped and sleeved on the outer side of the bamboo strip 6 for shaping the bent bamboo strip 6, and the end of the shaping chain 5 is close to the end of the bamboo strip 6;

[0099] A bending device is used for bending processing of the bamboo strip and locking of the shaping chain 5.

[0100] By adopting the technical scheme, after the bending of the bamboo strip 6 in the bending device is completed, the shaping chain 5 on the outer side of the bamboo strip 6 is locked by the bending device, so that the bent bamboo strip 6 is limited and fixed, and then the bamboo strip 6 is removed from the bending device, placed and shaped, cooled and hardened, and then the shaping chain 5 is opened and removed from the bamboo strip 6, so that the bamboo strip 6 does not need to be shaped for a long time in the bending device before being removed, and the processing efficiency is effectively improved.

[0101] In the embodiment of the present application, the bending device comprises:

[0102] A workbench 1 is provided with a machine cover 100, and an inlet and an outlet are respectively arranged on the two sides of the machine cover 100;

[0103] An inner mold 2 is arranged on the workbench 1, and the inner mold 2 is hollow and provided with a plurality of gas outlets 20 communicating with the inside on the peripheral side wall;

[0104] An outer mold 3 is arranged outside the inner mold 2, and the outer mold 3 is provided with a groove 30 corresponding to the corner of the outer wall of the inner mold 2, and the groove 30 is provided with an air outlet mechanism 31 which is turned on under external pressure, and the outer mold 3 is driven by a cylinder to move close to or away from the inner mold 2 to bend the bamboo strip;

[0105] A feeding roller set 4 is arranged at the entrance of the machine cover 100, and the feeding roller set 4 is used to clamp the shaping chain 5 on the outer side of the bamboo strip 6 and convey it to the space between the inner mold 2 and the outer mold 3.

[0106] The outer mold 3 is arranged outside the inner mold 2, and the outer mold 3 is provided with a groove 30 corresponding to the corner of the outer wall of the inner mold 2, and the groove 30 is provided with an air outlet mechanism 31 which is turned on under external pressure, and the outer mold 3 is driven by a cylinder to move close to or away from the inner mold 2 to bend the bamboo strip;

[0107] By adopting the above technical scheme, one end of the shaping chain 5 is clamped on one end of the bamboo strip 6, and then is sent into the feeding roller set 4, and the subsequent shaping chains 5 are clamped on the outer side of the bamboo strip 6 and conveyed to the workbench 1 through the extrusion conveying effect of the feeding roller set 4, and then are pressed tightly on the inner mold 2 through the action of the plurality of outer molds 3, so that the bamboo strip 6 is bent along the shape of the inner mold 2; when the bamboo strip 6 is bent, the air outlet holes 20 of the inner mold 2 and the air outlet mechanism 31 of the outer mold 3 all spray hot steam to heat the bamboo strip 6, the air outlet mechanism 31 can not spray hot steam when the groove 30 is not in contact with the bamboo strip 6, and only when the groove 30 is in contact with the bamboo strip 6, the hot steam is sprayed, and the sprayed hot steam can effectively act on the bamboo strip 6, thereby effectively avoiding the waste of hot steam.

[0108] In the embodiment of the present application, the bending device further comprises:

[0109] A hot steam generating device 7;

[0110] An air suction cover 8 is arranged above the inside of the machine cover 100;

[0111] An air suction machine 9;

[0112] A heating mechanism 10;

[0113] The outer mold 3 is provided with a gas guiding channel 32 connected with the air outlet mechanism 31, the gas guiding channel 32 is connected with the air outlet end of the hot steam generating device 7, and the air suction machine 9 sucks out the hot steam in the machine cover 1 through the air suction cover 8 and then conveys it to the inner mold 2 after being heated by the heating mechanism 10.

[0114] By adopting the technical scheme, the hot steam sent by the hot steam generating device 7 first enters the air outlet mechanism 31 of the outer mold 3, when the air outlet mechanism 31 is conducted, the hot steam is sprayed to heat the bamboo strip 6, then the hot steam enters between the workbench 1 and the machine cover 100, then the air suction machine 9 generates negative pressure to extract the hot steam through the air suction cover 8, heats the hot steam to a specified temperature through the heating mechanism 10, and then sends the hot steam into the inner mold 2, sprays the hot steam through the air outlet holes 20 on the inner mold 2 and acts on the inner side of the bamboo strip 6, so that the inner and outer sides of the bamboo strip 6 are heated and moisturized when the bamboo strip 6 is bent, the utilization rate of the hot steam is effectively improved, the hot steam can flow circularly, the hot steam can be effectively supplemented through the hot steam generating device 7, and the shortage of the hot steam and humidity is avoided.

[0115] In the embodiment of the application, the air outlet mechanism 31 comprises:

[0116] The outer pipe 310 is hollow inside and penetrates through both ends, air inlets 3100 and air outlets 3101 are arranged at both ends of the outer pipe 310 respectively, the air outlets 3101 are arranged close to the groove bottom of the groove 30, the air inlets 3100 are communicated with the air guide channel 32, limit plates 3102, sealing bosses 3103 and crossbars 3104 are arranged in sequence on the inner wall of the outer pipe 310 from the air inlets 3100 to the air outlets 3101, and a plurality of second air guide holes 3105 are arranged on the limit plates 3102.

[0117] The first sealing block 311 is arranged in a circular truncated cone type, one end of the first sealing block 311 with a smaller diameter is arranged towards the air outlets 3101 and protrudes to be provided with a stress column 3110, and the stress column 3110 protrudes from the air outlets 3101.

[0118] The second sealing block 312 is arranged in a circular truncated cone type, the second sealing block 312 is hollow inside and is provided with a cavity 3120 for the first sealing block 311 to enter, one end of the second sealing block 312 with a smaller diameter is arranged towards the air outlets 3101 and a first through hole 3121 matched with the first sealing block 311 is arranged in the middle of the second sealing block 312, and a plurality of first air guide holes 3122 communicated with the cavity 3120 are arranged on one end of the second sealing block 312 towards the air inlets 3100.

[0119] The inner wall of the sealing boss 3103 is matched with the outer wall of the second sealing block 312, the second sealing block 312 is arranged between the limit plate 3102 and the sealing boss 3103, a sliding hole 3106 for the stress column 3110 to slide through is arranged on the crossbar 3104, a spring 313 is arranged between the second sealing block 312 and the limit plate 3102, and the distance between the stress column 3110 protruding from the groove bottom of the groove 30 is greater than the moving distance of the first sealing block 311 in the cavity 3120.

[0120] By adopting the technical scheme, when the force bearing column 3110 is in contact with or pressed by the bamboo strip 6 or the shaped chain 5, the force bearing column 3110 drives the first sealing block 311 to move towards the air inlet 3100, so that the first through hole 3121 is opened, at this time, the hot steam in the air guide channel 32 flows out from the air outlet 3101 in sequence through the air inlet 3100, the second air guide hole 3105, the first air guide hole 3122, the cavity 3120 and the first through hole 3121, the hot steam sprayed acts on the bending place of the bamboo strip 6, ensures the bending effect, and makes the bamboo strip 6 not easy to break, then with the force bearing column 3110 continuing to be pressed, the first sealing block 311 moves to the bottom in the cavity 3120 and abuts against the second sealing block 312, then drives the second sealing block 312 to move towards the air inlet 3100, so that the second sealing block 312 is separated from the sealing boss 3103, so that the hot steam flows from the gap between the second sealing block 312 and the sealing boss 3103, the first air guide hole 3122, the cavity 3120 and the first through hole 3121 at the same time, and the flow amount is increased; when the outer mold 3 moves away from the bamboo strip 6, the second sealing block 312 is pressed on the sealing boss 3103 under the action of the spring 313, then the first sealing block 311 is automatically pressed in the first through hole 3121 under the high pressure of the hot steam, so that the sealing of the air outlet mechanism 31 is completed; through the step-by-step guide and opening, the opening is more relaxed.

[0121] In the embodiment of the present application, the bending device further comprises:

[0122] The jacking rod 11 is arranged around the inner mold 2 and penetrates the workbench 1, and the jacking rod 11 is driven to stretch up and down by a gas cylinder;

[0123] The discharging mechanism 12 comprises a clamping gas cylinder 120, a telescopic gas cylinder 121 and a discharging track mechanism 122, the discharging track mechanism 122 is arranged on the upper side inside the machine cover 100, the telescopic gas cylinder 121 is fixed on the sliding block of the discharging track mechanism 122, the clamping gas cylinder 120 is arranged in plurality and connected to the output shaft of the telescopic gas cylinder 121 through the connecting plate 123, and the discharging mechanism 12 is arranged above the inner mold 2;

[0124] The locking press plate 13 is driven by a gas cylinder to approach or move away from the end of the bent bamboo strip 6, and the locking press plate 13 is arranged on one side of the inner mold 2.

[0125] By adopting the technical scheme, when the bamboo strips 6 are bent by the step-by-step action of the plurality of outer molds 3, the two ends of the shaping chain 5 are matched with each other, then the locking is completed under the action of the locking pressing plate 13, then the jacking rod 11 moves upward, the bamboo strip 6 sleeved outside the inner mold 2 is moved upward, the bamboo strip 6 and the shaping chain 5 are separated from the inner mold 2, then the discharging mechanism 12 clamps the bamboo strip 6 and the shaping chain 5 by the clamping cylinder 120 and moves to send out to the outside of the bending device to cool and shape, so that the discharging is realized.

[0126] In the embodiment of the present application, the shaping chain 5 comprises:

[0127] The main frame 50 is arranged in a "H" shape, and comprises a horizontal part 500 and a vertical part 501, the horizontal part 500 is provided with two ends perpendicular to the same side of the vertical part 501, and a plurality of third air guide holes 5010 are uniformly arranged on the vertical part 501;

[0128] The connecting strip 51 is rotatably connected to the horizontal parts 500 on the same side of the adjacent two main frames 50;

[0129] The clamping mechanism 52 comprises a clamping part 520 and a connecting part 521, the clamping part 520 is provided with two ends perpendicularly connected to the connecting part 521, the connecting part 521 is attached to the inner side of the vertical part 501, and a plurality of fourth air guide holes 5210 are uniformly arranged on the connecting part 521;

[0130] The main frame 50 is arranged on the length direction of the bamboo strip 6, the adjacent main frames 50 are rotatably connected by the connecting strip 51, the clamping mechanism 52 is arranged on the inner side of the main frame 50, and the bamboo strip 6 is clamped between the two clamping parts 520, the main frame 50 at the end of the shaping chain 5 is provided with a locking mechanism, and the connecting part 521 is fixed on the main frame 50.

[0131] By adopting the technical scheme, the main frame 50 is connected by the connecting strip 51, so that the shaping chain 5 can be bent along with the bending of the bamboo strip 6, and the shaping chain 5 can adapt to the bamboo strip 6 of various shapes; the clamping mechanism 52 can effectively clamp and fix the shaping chain 5 on the bamboo strip 6 and is not easy to be separated; the locking mechanism can connect the two ends of the shaping chain 5 after the bamboo strip 6 is bent, so as to limit the bamboo strip 6; the hot steam sprayed by the outer mold 3 can act on the bending position of the bamboo strip 6 through the third air guide holes 5010 and the fourth air guide holes 5210, so that the heating and humidifying effect on the bamboo strip 6 is better.

[0132] In the embodiment of the present application, the clamping part 520 comprises sequentially connected:

[0133] A back plate 5200 is vertically connected to one end of the connecting part 521, and is attached to the inner side of the transverse part 500;

[0134] A first U-shaped part 5201 is arranged in a U shape, one end of which is connected to one end of the back plate 5200, and the other end extends towards the connecting part 521;

[0135] A first connecting part 5202 is arranged on the first U-shaped part 5201;

[0136] A resisting part 5203 is arranged in an arc shape and protrudes from one side of the back plate 5200;

[0137] A second U-shaped part 5204 is arranged in a U shape, one end of which is connected to one end of the resisting part 5203, and the other end extends towards the first U-shaped part 5201;

[0138] A second connecting part 5205 is arranged on the second U-shaped part 5204;

[0139] A bending part 5206 is arranged on the second connecting part 5205, and one end of the bending part 5206 is connected to one end of the second connecting part 5205, and the other end bends towards the back plate 5200;

[0140] A supporting part 5207 is arranged in an arc shape and protrudes from one side of the back plate 5200, and is connected to the inner side of the back plate 5200;

[0141] When the bamboo strip 6 is installed between the two clamping parts 520, the resisting part 5203 is pressed against the outer wall of the bamboo strip 6, and there is a gap between the second connecting part 5205, the bending part 5206 and the back plate 5200.

[0142] When the bamboo strip 6 is located between the two clamping parts 520, the resisting part 5203 is pressed against the outer wall of the bamboo strip 6, and the supporting part 5207 is pressed against the back plate 5200, and under the action of the bending part 5206, the clamping part 520 is squeezed, and there is a gap between the second connecting part 5205, the bending part 5206 and the back plate 5200, thereby reducing the amount of deformation of the second connecting part 5205, so that the clamping part 520 can still maintain good elastic properties even after long-term use.

[0143] In the embodiment of the present application, the locking mechanism comprises:

[0144] A connecting rod 53 is protruded on one side of the main frame 50 at one end of the shaping chain 5 along the length direction of the bamboo strip 6, an end of the connecting rod 53 is vertically connected with a rotating shaft 54, the rotating shaft 54 is rotatably connected with a rotating roller 55, and the length direction of the rotating shaft 54 is parallel to the length direction of the vertical part 501;

[0145] A locking groove 56 is arranged on the outside of the main frame 50 at the other end of the shaping chain 5, when the bamboo strip 6 is bent, a slope 57 is protruded on the side slot of the locking groove 56 close to the connecting rod 53, and the distance between the top of the slope 57 and the other side slot is greater than the distance between the bottom of the slope 57 and the other side slot.

[0146] The diameter of the rotating roller 55 is smaller than the distance between the bottom of the slope 57 and the other side slot and the distance between the bottom of the slope 57 and the bottom of the locking groove 56, a notch 58 for placing the connecting rod 53 is arranged on the main frame 50 where the locking groove 56 is arranged, and the notch 58 is communicated with the locking groove 56.

[0147] According to the above technical scheme, when the bamboo strip 6 is bent, one end of the main frame 50 with the locking groove 56 on the bamboo strip 6 is first pressed on the inner mold 2, then the other end of the bamboo strip 6 is bent down, the rotating roller 55 is located on the top of the slope 57, then the locking pressing plate 13 is moved to approach and contact and press the connecting rod 53, under the pressing action of the locking pressing plate 13, the rotating roller 55 rolls down along the slope 57 until it enters the locking groove 56, so that the locking is completed, when the bamboo strip 6 is cooled and hardened, the rotating roller 55 is removed from the locking groove 56, the locking is released, then the shaping chain 5 is removed from the bamboo strip 6, and the bending processing is completed.

[0148] In the embodiment of the present application, the inner mold 2 is rectangular, the four corners of the inner mold 2 are rounded, the groove 30 is circular arc type, the outer mold 3 is provided with four, two of which are located in front of the two corners on the front side of the inner mold 2, the bamboo strip 6 enters the front side of the inner mold 2 between the two outer molds 3 through the feeding roller group 4, and the other two outer molds 3 are respectively located on the left and right sides of the two corners on the rear side of the inner mold 2.

[0149] By adopting the above technical scheme, through the subsequent actions of the plurality of outer molds 3, the bamboo strips 6 sleeved with the shaping chain 5 are first compressed on the front side of the inner mold 2, then with the continuous action of the outer mold 3, the left and right ends of the bamboo strips 6 are respectively moved to the rear side of the inner mold 2, so that the inner side of the bamboo strips 6 abuts against the left and right sides of the inner mold 2, then the outer mold 3 on the left side of the inner mold 2 is actuated to first compress the left end of the bamboo strips 6 on the rear side of the inner mold 2, and then the outer mold 3 on the right side of the inner mold 2 is actuated to first compress the right end of the bamboo strips 6 on the rear side of the inner mold 2, so that the connecting rod 53 and the rotating roller 55 are located outside the locking groove 56, and the rotating roller 55 can smoothly enter the locking groove 56 to complete the locking.

[0150] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A production equipment for irregularly shaped bamboo products, characterized in that, include: A shaping chain (5) is snapped onto the outside of a bamboo strip (6) to shape the bent bamboo strip (6). The end of the shaping chain (5) is located near the end of the bamboo strip (6). A bending device for bending bamboo strips and locking the shaping chain (5); The bending device includes: A workbench (1) is provided with a machine cover (100), and an inlet and an outlet are respectively opened on both sides of the machine cover (100); Inner mold (2), the inner mold (2) is set on the workbench (1), the inner mold (2) is hollow inside and has several air vents (20) communicating with the interior on the four sides. The outer mold (3) is arranged in multiple ways around the outer side of the inner mold (2). The outer mold (3) facing the inner mold (2) is provided with a groove (30) corresponding to the corner of the outer wall of the inner mold (2). The groove (30) is provided with an air outlet mechanism (31) that is opened after being subjected to external pressure. The outer mold (3) is driven by a cylinder to move closer to or away from the inner mold (2) and bend the bamboo strip. Feeding roller assembly (4), the feeding roller assembly (4) is located at the entrance of the machine cover (100), the feeding roller assembly (4) is used to snap the shaping chain (5) onto the outside of the bamboo strip (6) and transport it between the inner mold (2) and the outer mold (3); Wherein, after the outer mold (3) moves into place, there is a gap between it and the inner mold (2) for the bamboo strip (6) with the shaping chain (5) sleeved on it to be accommodated; The bending device further includes: Hot steam generator (7); An air intake hood (8) is located above the inside of the machine cover (100); Inhaler (9); Heating mechanism (10); The outer mold (3) is provided with an air guide channel (32) connected to the air outlet mechanism (31). The air guide channel (32) is connected to the air outlet of the hot steam generator (7). The air suction machine (9) extracts the hot steam in the machine cover (100) through the air suction cover (8) and heats it through the heating mechanism (10) before sending it to the inner mold (2). The air outlet mechanism (31) includes: The outer tube (310) is open at both ends and hollow inside. The two ends of the outer tube (310) are respectively provided with an air inlet (3100) and an air outlet (3101). The air outlet (3101) is located near the bottom of the groove (30). The air inlet (3100) is connected to the air guide channel (32). On the inner wall of the outer tube (310), from the air inlet (3100) to the air outlet (3101), there are a limiting plate (3102), a sealing boss (3103), and a cross (3104) in sequence. The limiting plate (3102) is provided with a plurality of second air guide holes (3105). The first sealing block (311) is frustum-shaped, with the end having a smaller diameter facing the air outlet (3101) and a force-bearing column (3110) protruding therefrom. The force-bearing column (3110) extends out of the air outlet (3101). The second sealing block (312) is frustum-shaped, with a hollow cavity (3120) inside for the first sealing block (311) to enter. The end of the second sealing block (312) with a smaller diameter faces the air outlet (3101), and a first through hole (3121) matching the first sealing block (311) is provided in the middle. A number of first air guide holes (3122) communicating with the cavity (3120) are provided at the end of the second sealing block (312) facing the air inlet (3100). Among them, the inner wall of the sealing boss (3103) matches the outer wall of the second sealing block (312). The second sealing block (312) is arranged between the limiting plate (3102) and the sealing boss (3103). A sliding hole (3106) for the force-bearing column (3110) to pass through and slide is provided on the cross (3104). A spring (313) is provided between the second sealing block (312) and the limiting plate (3102). The distance that the force-bearing column (3110) protrudes from the bottom of the groove (30) is greater than the moving distance of the first sealing block (311) in the cavity (3120).

2. The production equipment for irregularly shaped bamboo products according to claim 1, characterized in that, The bending device further includes: A jacking rod (11) that penetrates through the workbench (1) and is arranged around the inner mold (2). The jacking rod (11) is driven by a cylinder to move up and down telescopically. A discharging mechanism (12) including a clamping cylinder (120), a telescopic cylinder (121), and a discharging track mechanism (122). The discharging track mechanism (122) is arranged on the upper side inside the machine cover (100). The telescopic cylinder (1) is fixed on the slider of the discharging track mechanism (122). A plurality of clamping cylinders (120) are provided and are connected to the output shaft of the telescopic cylinder (121) through a connecting plate (123). The discharging mechanism (12) is arranged above the inner mold (2). A locking pressing plate (13) that is driven by a cylinder to approach or move away from the end of the bent bamboo strip (6). The locking pressing plate (13) is arranged on one side of the inner mold (2).

3. The production equipment for irregularly shaped bamboo products according to claim 1, characterized in that, The shaping chain (5) includes: A main body frame (50) that is "U"-shaped. The main body frame (50) includes a horizontal part (500) and a vertical part (). Two horizontal parts (500) are provided and are respectively perpendicular to the two ends of the same side of the vertical part (501). A number of third air guide holes (5010) are evenly provided on the vertical part (501). A connecting strip (51) whose two ends are rotatably connected to the horizontal parts (500) on the same side of adjacent two main body frames (50). The clamping mechanism (52) includes a clamping part (520) and a connecting part (521). The clamping part (520) has two clamping parts and is vertically connected to both ends of the connecting part (521). The connecting part (521) is attached to the inner side of the vertical part (501). A plurality of fourth air guide holes (5210) are evenly opened on the connecting part (521). The main frame (50) is arranged in multiple equidistant positions along the length of the bamboo strip (6). Adjacent main frames (50) are rotatably connected by connecting strips (51). The clamping mechanism (52) is located on the inner side of the main frame (50) and is used to clamp the bamboo strip (6) between two clamping parts (520). The main frame (50) at the end of the shaping chain (5) is provided with a locking mechanism. The connecting part (521) is fixed on the main frame (50).

4. The production equipment for irregularly shaped bamboo products according to claim 3, characterized in that, The clamping part (520) includes the following components connected in sequence: A back plate (5200) is provided, one end of which is perpendicularly connected to the end of the connecting part (521), and the back plate (5200) is attached to the inner side of the transverse part (500). The first U-shaped part (5201) is U-shaped, one end of the first U-shaped part (5201) is connected to one end of the back plate (5200), and the other end extends toward the connecting part (521); First connecting part (5202); The contact part (5203) is provided in an arc shape protruding toward the side away from the back plate (5200); The second U-shaped part (5204) is U-shaped, one end of the second U-shaped part (5204) is connected to one end of the contact part (5203), and the other end extends toward the first U-shaped part (5201); Second connecting part (5205); A bending portion (5206) has one end connected to one end of a second connecting portion (5205), and the other end is bent toward the back plate (5200). The support part (5207) is provided with an arc-shaped protrusion on one side facing the back plate (5200) and abuts against the inner side of the back plate (5200); When the bamboo strip (6) is installed between the two clamping parts (520), the contacting part (5203) presses against the bamboo strip (6), and there are gaps between the second connecting part (5205) and the bending part (5206) and the back plate (5200).

5. The production equipment for irregularly shaped bamboo products according to claim 3, characterized in that, The locking mechanism includes: A connecting rod (53) is provided on one side of the main frame (50) at one end of the shaping chain (5) along the length direction of the bamboo strip (6). A rotating shaft (54) is vertically connected to the end of the connecting rod (53). A rotating roller (55) is rotatably connected to the rotating shaft (54). The length direction of the rotating shaft (54) is parallel to the length direction of the vertical part (501). Locking groove (56) is opened on the outside of the main frame (50) at the other end of the shaping chain (5). When the bamboo strip (6) is bent, the locking groove (56) has a ramp (57) protruding from the groove near the connecting rod (53). The distance between the top of the ramp (57) and the groove on the other side is greater than the distance between the bottom of the ramp (57) and the groove on the other side. The diameter of the rotating roller (55) is smaller than the distance between the bottom of the slope (57) and the groove on the other side, and the distance between the bottom of the slope (57) and the bottom of the locking groove (56). The main frame (50) where the locking groove (56) is located has a notch (58) for placing the connecting rod (53), and the notch (58) is connected to the locking groove (56).

6. The method for producing irregularly shaped bent bamboo products using a bamboo product bending production equipment according to claim 1, characterized in that, Includes the following steps: S1: The bamboo strips are initially sawn and processed according to the predetermined size, and the surface is deburred. S2: Moist heat treatment to soften bamboo strips; S3: The shaping chain is attached to the outside of the bamboo strip and fed into the bending device for bending; S4: The bamboo strip is bent by the cooperation of the inner and outer molds in the bending device, while the bamboo strip is softened by wet heating. S5: After the bamboo strip is bent to the specified angle, the shaping chain is fastened and locked. S6: Remove the bamboo strips and shaping chain from the inner mold and convey them out of the bending device; S7: Cool and dry the bamboo strips; S8: After the bamboo strips have dried, cooled and hardened, open the shaping chain and take out the bent bamboo strips.

7. A method for producing irregularly shaped bent bamboo products according to claim 6, characterized in that, The wet heating in steps S2 and S4 is both jet hot steam heating, and the temperature of the hot steam is 100℃-120℃.

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