CN216770135U - Timber veneer tunnel type is dried and is used chain conveyor - Google Patents

Abstract

A chain conveying device for tunnel type drying of wood veneers comprises a chain conveyor, wherein the chain conveyor is installed in a tunnel type drying room in a penetrating mode, two ends of a rack of the chain conveying device are respectively provided with a No. I driven shaft and a No. II driven shaft, two ends of the No. I driven shaft and the No. II driven shaft are respectively provided with a No. I driven chain wheel and a No. II driven chain wheel, a driving shaft with small driving chain wheels at two ends is installed at the upper portion or the lower portion of the front of the No. I driven shaft, and the small driving chain wheels at corresponding ends, the No. I driven chain wheels and the No. II driven chain wheels are connected in a closed-loop mode through a plate type conveying chain; an automatic clamp for clamping the wood veneer is arranged between the chain plates corresponding to each section of the two plate-type conveying chains. This chain conveyor can be dried from tunnel stoving room inner loop rotation with the vertical clamp in multi-disc timber veneer interval, and the feeding is on tunnel stoving room entry end upper portion, and the ejection of compact realizes continuous flowing water stoving operation in tunnel stoving room body entry end lower part, and timber veneer stoving is effectual.

Description

Timber veneer tunnel type is dried and is used chain conveyor

Technical Field

The utility model relates to the technical field of wood drying equipment, in particular to a chain conveying device for tunnel type drying of wood veneers.

Background

The wood veneer is a strip-shaped thin plate which is formed by cutting a tree with economic use value into a certain length, then rotationally cutting the tree into a specified thickness along the round surface of a trunk by using mechanical equipment (a veneer rotary cutter with a clamp or without a clamp), and generally has various specifications between 0.5 mm and 3.2mm according to the national standard. The rotary cut wood veneer is widely used as a basic material of an artificial composite board in various fields such as construction, industry, agriculture, military and the like. For a long time, due to the limitation of the special physical property and the economic cost, the domestic and foreign rotary cutting boards are dried by adopting a natural drying mode which is limited by factors such as natural weather environment, field, manpower and the like, in areas with much rainwater in China, the wood boards to be dried are often soaked in sewage, the single boards are easy to mildew and deform, and the drying quality is greatly influenced; in addition, the veneer is naturally dried and placed in the field, the floor area is large, and the manual strength is also large, so that the industrial industrialized, large-scale and modernized development is severely restricted.

For the problems of naturally drying the rotary-cut wood veneer, people research and develop and adopt hot air drying equipment to dry the rotary-cut wood veneer, convey the rotary-cut wood veneer into the hot air drying equipment, and directly guide the rotary-cut wood veneer into the hot air drying equipment by adopting a hot air furnace to dry the rotary-cut wood veneer. Practical application researches show that the drying efficiency and the drying effect of hot air drying equipment with different structures are different, and the conveying device adopted by the conventional tunnel type drying equipment cannot realize vertical conveying of wood veneers for running water type drying operation.

Disclosure of Invention

The utility model aims to provide a chain conveying device for tunnel type drying of wood veneers, which can convey a plurality of wood veneers into a drying room from one end of the tunnel drying room in a vertically clamped mode at intervals, the wood veneers rotate circularly in the tunnel drying room along with a chain conveyor, when the wood veneers rotate to the inlet end of the tunnel drying room, the chain conveyor automatically releases the wood veneers, the wood veneers are separated from the chain conveyor, continuous flow drying operation of the wood veneers is realized, and the drying effect of the wood veneers is good.

In order to realize the purpose of the utility model, the technical scheme is as follows:

a chain conveying device for tunnel type drying of wood veneers comprises a chain conveyor, wherein the chain conveyor is penetratingly arranged in a tunnel type drying room body and used for clamping and conveying the wood veneers, the tunnel type drying room body is communicated with a hot blast stove through a pipeline, the hot blast stove provides hot air for the tunnel type drying room body, the chain conveyor comprises a frame, wherein a No. I driven shaft and a No. II driven shaft are respectively arranged at two ends of the frame in parallel through a bearing with a seat, a No. I driven chain wheel is respectively arranged at two ends of the No. I driven shaft, a No. II driven chain wheel is respectively arranged at two ends of the No. II driven shaft, a driving shaft is also arranged at the upper part or the lower part in front of the No. I driven shaft in parallel through the bearing with the seat, a small driving chain wheel is respectively arranged at two ends of the driving shaft, the small driving chain wheel, the No. I driven chain wheel and the No. II driven chain wheel at the corresponding ends are connected in a closed-loop manner through a plate type conveying chain; one end of the driving shaft is connected with a stepping motor; an automatic clamp for clamping a wood veneer is arranged between chain plates corresponding to each section of the two plate-type conveying chains; the diameter of the small driving chain wheel is smaller than the diameters of the No. I driven chain wheel and the No. II driven chain wheel; because the span of the plate type conveying chain between the No. I driven shaft and the No. II driven shaft is large, an auxiliary supporting chain wheel can be properly added in the middle; the automatic clamp comprises fixed connecting rods, the two ends of each fixed connecting rod are respectively fixedly connected with the chain plates of two corresponding plate-type conveying chains, a plurality of fixed clamping rods which are spaced at a certain distance are vertically fixed on the fixed connecting rods, the fixed connecting rod on the front side of each fixed clamping rod is provided with an elastic strip or a hinged seat, each elastic strip or the hinged seat is connected with a movable clamping rod arranged on the front side of each fixed clamping rod, a torsional spring is installed between each movable clamping rod and the corresponding fixed clamping rod, the torsional spring struts the movable clamping rods and the fixed clamping rods to be elastically connected, each movable clamping rod on the plate-type conveying chains between the driven chain wheels I and II and the fixed clamping rods on the fixed connecting rods on the adjacent front sides are in a tight state, and the movable clamping rods at the small driving chain wheel and the fixed clamping rods on the fixed connecting rods on the adjacent front sides are in a separate state. Namely, the movable clamping rods are connected with the fixed clamping rods in a V shape, each movable clamping rod on the plate type conveying chain between the driven chain wheel I and the driven chain wheel II and the corresponding fixed clamping rod on the fixed connecting rod on the adjacent front side are ensured to be in a tight attaching state, a wood veneer is clamped tightly, the torsion spring is extruded, when the torsion spring rotates to the small driving chain wheel, because the diameter of the small driving chain wheel is smaller, two adjacent fixed connecting rods can form an included angle along with the rotation of the plate type conveying chain, the movable clamping rods and the fixed clamping rods on the fixed connecting rods on the adjacent front sides are in a non-tight attaching state, the movable clamping rods are separated from the fixed clamping rods on the fixed connecting rods on the adjacent front sides, the torsion spring is not extruded, the movable clamping rods are opened in a natural state and are correspondingly arranged between the fixed clamping rods on the same fixed connecting rod in a V shape, the wood veneer is fed between the movable clamping rod above the front side of the small driving chain wheel and the fixed clamping rod on the fixed connecting rod on the adjacent front side, and the dried wood veneer is discharged between the movable clamping rod below the front side of the small driving chain wheel and the fixed clamping rod on the fixed connecting rod on the adjacent front side.

Further preferred is: the middle parts of the fixed clamping rods are connected into a whole through a connecting rod.

Further preferred is: the front side top of little driving sprocket be provided with the feeding conveyer belt that is used for carrying timber veneer feeding, the outside line sensor is installed to the discharge end of feeding conveyer belt, the outside line sensor is connected with the controller, the controller still is connected with step motor through the control line, the work of step motor is controlled according to the signal control of outside line sensor transmission to the controller.

Further preferred is: and a discharge conveyer belt for conveying the wood veneer in a discharge manner is arranged below the front side of the small driving chain wheel.

This chain conveyor for timber veneer tunnel type is dried's advantage does:

1. the chain conveyor with the automatic clamp is used for conveying wood veneers to enter from an inlet of a tunnel type drying room body in a vertical clamping mode, the chain conveyor rotates in the tunnel type drying room body in a circulating mode, when the chain conveyor rotates to the inlet in the circulating mode, the wood veneers are loosened to finish drying, continuous flow operation is achieved, according to the requirements of different clients on the humidity of the wood veneers, the humidity of the dried wood is 6-18 degrees, and the veneer productivity per hour is up to 6 cubic meters and above. Because it is the chain conveyor that the internal circulation of tunnel type stoving room rotates, can reduce the length of the tunnel type stoving room body, area is little, and a circulation can the centre gripping multi-disc timber veneer of stoving, because be the imitative nature sunning dry mode of arranging of vertical spacing centre gripping, the timber veneer stoving is heated comparatively evenly, timber veneer non-deformable, and the timber veneer that a circulation was dried out can accord with the requirement of clamp plate factory to the quality.

2. Be provided with the feeding conveyer belt that is used for carrying timber veneer feeding in the front side top of little driving sprocket, the outside line sensor is installed to the discharge end of feeding conveyer belt, the outside line sensor is connected with the controller, the controller still is connected with step motor through the control line, the controller is according to the work of the signal control step motor of outside line sensor transmission, be provided with the ejection of compact conveyer belt that is used for carrying the timber veneer ejection of compact below little driving sprocket's front side, realize timber veneer tunnel flowing water automatic type and dry, the work efficiency is improved, and the labor intensity is reduced.

3. The automatic clamping structure is ingenious in arrangement, the included angle of the fixed connecting rod between the two chain sections is changed by the small chain wheel, the movable clamping rod and the fixed clamping rod on the fixed connecting rod on the adjacent front side are opened, and the movable clamping rods on the rest positions and the fixed clamping rods on the fixed connecting rod on the adjacent front side are tightly attached to and clamp the wood veneer.

Drawings

FIG. 1 is a schematic view of the installation and arrangement of the chain conveying device for tunnel-type drying of wood veneers and a tunnel-type drying room body;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is a schematic view of the automatic clamp;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is an enlarged schematic view at B in FIG. 4;

FIG. 6 is a schematic view of the mounting relationship of the automatic clamp and the slat conveyor chain;

the names corresponding to the sequence numbers in the figure are:

1. a hot blast stove; 2. drying the house body in a tunnel type; 3. a frame; 4. a chain conveyor; 5. a stepping motor; 6. an infrared sensor; 7. a controller; 8. a feed conveyor belt; 9. a discharge conveyer belt; 10. a driven sprocket; 11. a driven shaft No. II; 12. a plate conveyor chain; 13. a pedestal bearing; 14. a driven sprocket No. I; 15. automatic clamping; 16. a small drive sprocket; 17. a drive shaft; 18. a No. I driven shaft; 19. a chain plate; 20. a fixed connecting rod; 21. an elastic strip; 22. a movable clamping rod; 23. a torsion spring; 24. fixing the clamping rod; 25. a connecting rod.

Detailed Description

The technical solution of the present invention is described clearly and completely with reference to the following embodiments, which are only a part of the present invention, but not all of the embodiments.

Example 1

A chain conveying device for tunnel type drying of wood veneers comprises a chain conveyor 4, wherein the chain conveyor 4 is installed in a tunnel type drying room body 2 in a penetrating mode and used for clamping and conveying wood veneers, the tunnel type drying room body 2 is communicated with a hot air furnace 1 through an air pipe, the hot air furnace 1 provides hot air for the tunnel type drying room body 2, the chain conveyor 4 comprises a rack 3, two ends of the rack 3 are respectively provided with a No. I driven shaft 18 and a No. II driven shaft 11 in parallel through a bearing with a seat 13, two ends of the No. I driven shaft 18 are respectively provided with a No. I driven sprocket 14, two ends of the No. II driven shaft 11 are respectively provided with a No. II driven sprocket 10, the upper portion or the lower portion in front of the No. I driven shaft 18 is also provided with a driving shaft 17 in parallel through the bearing with a seat 13, two ends of the driving shaft 17 are respectively provided with a small driving sprocket 16, the small driving chain wheel 16, the driven chain wheel 14I and the driven chain wheel 10 II at the corresponding ends are connected in a closed loop mode through the plate type conveying chain 12; one end of the driving shaft 17 is connected with a stepping motor 5; an automatic clamp 15 for clamping a wood veneer is arranged between chain plates 19 corresponding to each section of the two plate-type conveying chains 12; the diameter of the small driving chain wheel 16 is smaller than that of the driven chain wheel I14 and the driven chain wheel II 10; because the span of the plate type conveying chain 12 between the No. I driven shaft 18 and the No. II driven shaft 11 is large, an auxiliary supporting chain wheel can be properly added in the middle; the automatic clamp 15 comprises a fixed connecting rod 20, two ends of the fixed connecting rod 20 are respectively fixedly connected with the chain plates 19 of two corresponding plate-type conveying chains 12, a plurality of fixed clamping rods 24 are vertically fixed on the fixed connecting rod 20, the fixed connecting rod 20 at the front side of each fixed clamping rod 24 is provided with an elastic strip 21 or an articulated seat, each elastic strip 21 or articulated seat is connected with a movable clamping rod 22 arranged at the front side of the fixed clamping rod 24, a torsion spring 23 is arranged between the movable clamping rod 22 and the fixed clamping rod 24, the torsion spring 23 elastically connects the movable clamping rod 22 and the fixed clamping rod 24 in a propping manner, so that each movable clamping rod 22 on the plate-type conveying chains 12 between the No. I driven sprocket 14 and the No. II driven sprocket 10 and the fixed clamping rod 24 on the adjacent front side are in a tight attaching state, the movable clamping bar 22 at the small drive sprocket 16 is spaced from the fixed clamping bar 24 on the adjacent front fixed connecting rod 20. Namely, the movable clamping bar 22 and the fixed clamping bar 24 are connected in a V shape, each movable clamping bar 22 on the plate type conveying chain 12 between the No. I driven chain wheel 14 and the No. II driven chain wheel 10 and the corresponding fixed clamping bar 24 on the fixed connecting rod 20 on the adjacent front side are ensured to be in a tight contact state, a wood veneer is clamped, the torsion spring 23 is extruded, when the small driving chain wheel 16 rotates, because the diameter of the small driving chain wheel 16 is smaller, an included angle is formed by the rotation of the two adjacent fixed connecting rods 20 along with the plate type conveying chain 12, the movable clamping bar 22 and the fixed clamping bar 24 on the fixed connecting rod 20 on the adjacent front side are in a non-tight contact state, the movable clamping bar 22 is separated from the fixed clamping bar 24 on the fixed connecting rod 20 on the adjacent front side, the torsion spring 23 is not extruded, the movable clamping bar 22 is opened in a natural state and is correspondingly arranged in a V shape between the fixed clamping bars 24 on the same fixed connecting rod 20, the wood veneer is fed from the position between the movable clamping rod 22 above the front side of the small driving chain wheel 16 and the fixed clamping rod 24 on the fixed connecting rod 20 adjacent to the front side, and the dried wood veneer is discharged from the position between the movable clamping rod 22 below the front side of the small driving chain wheel 16 and the fixed clamping rod 24 on the fixed connecting rod 20 adjacent to the front side.

Example 2

A chain conveying device for tunnel type drying of wood veneers comprises a chain conveyor 4, wherein the chain conveyor 4 is installed in a tunnel type drying room body 2 in a penetrating mode and used for clamping and conveying wood veneers, the tunnel type drying room body 2 is communicated with a hot air furnace 1 through an air pipe, the hot air furnace 1 provides hot air for the tunnel type drying room body 2, the chain conveyor 4 comprises a rack 3, two ends of the rack 3 are respectively provided with a No. I driven shaft 18 and a No. II driven shaft 11 in parallel through a bearing with a seat 13, two ends of the No. I driven shaft 18 are respectively provided with a No. I driven sprocket 14, two ends of the No. II driven shaft 11 are respectively provided with a No. II driven sprocket 10, the upper portion or the lower portion in front of the No. I driven shaft 18 is also provided with a driving shaft 17 in parallel through the bearing with a seat 13, two ends of the driving shaft 17 are respectively provided with a small driving sprocket 16, the small driving chain wheel 16, the driven chain wheel 14I and the driven chain wheel 10 II at the corresponding ends are connected in a closed loop mode through the plate type conveying chain 12; one end of the driving shaft 17 is connected with a stepping motor 5; an automatic clamp 15 for clamping a wood veneer is arranged between chain plates 19 corresponding to each section of the two plate-type conveying chains 12; the diameter of the small driving chain wheel 16 is smaller than that of the driven chain wheel I14 and the driven chain wheel II 10; because the span of the plate type conveying chain 12 between the No. I driven shaft 18 and the No. II driven shaft 11 is large, an auxiliary supporting chain wheel can be properly added in the middle; the automatic clamp 15 comprises a fixed connecting rod 20, two ends of the fixed connecting rod 20 are respectively fixedly connected with the chain plates 19 of two corresponding plate-type conveying chains 12, a plurality of fixed clamping rods 24 are vertically fixed on the fixed connecting rod 20, the fixed connecting rod 20 at the front side of each fixed clamping rod 24 is provided with an elastic strip 21 or an articulated seat, each elastic strip 21 or articulated seat is connected with a movable clamping rod 22 arranged at the front side of the fixed clamping rod 24, a torsion spring 23 is arranged between the movable clamping rod 22 and the fixed clamping rod 24, the torsion spring 23 elastically connects the movable clamping rod 22 and the fixed clamping rod 24 in a propping manner, so that each movable clamping rod 22 on the plate-type conveying chains 12 between the No. I driven sprocket 14 and the No. II driven sprocket 10 and the fixed clamping rod 24 on the adjacent front side are in a tight attaching state, the movable clamping bar 22 at the small drive sprocket 16 is spaced from the fixed clamping bar 24 on the adjacent front fixed connecting rod 20. Namely, the movable clamping bar 22 and the fixed clamping bar 24 are connected in a V shape, each movable clamping bar 22 on the plate type conveying chain 12 between the No. I driven chain wheel 14 and the No. II driven chain wheel 10 and the corresponding fixed clamping bar 24 on the fixed connecting rod 20 on the adjacent front side are ensured to be in a tight contact state, a wood veneer is clamped, the torsion spring 23 is extruded, when the small driving chain wheel 16 rotates, because the diameter of the small driving chain wheel 16 is smaller, an included angle is formed by the rotation of the two adjacent fixed connecting rods 20 along with the plate type conveying chain 12, the movable clamping bar 22 and the fixed clamping bar 24 on the fixed connecting rod 20 on the adjacent front side are in a non-tight contact state, the movable clamping bar 22 is separated from the fixed clamping bar 24 on the fixed connecting rod 20 on the adjacent front side, the torsion spring 23 is not extruded, the movable clamping bar 22 is opened in a natural state and is correspondingly arranged in a V shape between the fixed clamping bars 24 on the same fixed connecting rod 20, the wood veneer is fed from the position between the movable clamping rod 22 above the front side of the small driving chain wheel 16 and the fixed clamping rod 24 on the fixed connecting rod 20 adjacent to the front side, and the dried wood veneer is discharged from the position between the movable clamping rod 22 below the front side of the small driving chain wheel 16 and the fixed clamping rod 24 on the fixed connecting rod 20 adjacent to the front side.

The middle parts of the fixed clamping rods 24 are connected into a whole through a connecting rod 25.

The front side top of little driving sprocket 16 be provided with the feeding conveyer belt 8 that is used for carrying timber veneer feeding, outside line sensor 6 is installed to the discharge end of feeding conveyer belt 8, and outside line sensor 6 is connected with controller 7, and controller 7 still is connected with step motor 5 through the control line, and the work of step motor 5 is controlled according to the signal control that outside line sensor 6 transmitted to controller 7.

And a discharging conveyer belt 9 for discharging and conveying the wood veneer is arranged below the front side of the small driving chain wheel 16.

This chain conveyor for timber veneer tunnel type is dried's installation theory of operation does: the hot blast stove 1 continuously provides hot blast for the tunnel type drying room body 2, the wood veneers which are not dried are sequentially placed on the feeding conveyer belt 8, the wood veneers are sequentially conveyed to the automatic clamp 15 of the chain conveyer 4, when the wood veneers enter the automatic clamp 15 at the position of the small driving sprocket 16 through the feeding conveyer belt 8, the wood veneers are detected by the infrared sensor 6, signals are transmitted to the controller 7, the controller 7 controls the stepping motor 5 to drive the driving shaft 17 according to a program, the rotation of the plate type conveying chain 12 is realized, the automatic clamp 15 on the plate type conveying chain 12 is driven to move towards the tunnel type drying room body 2, the wood veneers enter the plate type conveying chain 12 to rotate one lattice, the wood veneers are positioned between the movable clamping rod 22 and the fixed clamping rod 24 on the fixed connecting rod 20 at the adjacent front side, after the automatic clamp 15 with the wood veneers rotates away from the small driving sprocket 16 along with the plate type conveying chain 12, the movable clamping rod 22 of the automatic clamp 15 is tightly attached to the fixed clamping rod 24 on the fixed connecting rod 20 at the adjacent front side to clamp the wood veneer, and the wood veneer is driven by the plate-type conveying chain 12 to enter the tunnel-type drying room body 2 to be dried by hot air; because the plate-type conveying chain 12 rotates in a closed loop manner, when the automatic clamp 15 with the wood veneer placed thereon rotates to return to the small driving sprocket 16 along with the plate-type conveying chain 12, because the diameter of the small driving sprocket 16 is smaller, an included angle is formed by the rotation of two adjacent fixed connecting rods 20 along with the rotation of the plate-type conveying chain 12, so that the movable clamping rod 22 is not tightly attached to the fixed clamping rod 24 on the fixed connecting rod 20 on the adjacent front side, the movable clamping rod 22 is separated from the fixed clamping rod 24 on the fixed connecting rod 20 on the adjacent front side, the torsion spring 23 is not extruded, the movable clamping rod 22 is opened to be in a natural state and is in a V shape with the fixed clamping rod 24 correspondingly arranged on the same fixed connecting rod 20, the wood veneer automatically falls onto the discharging conveying belt 9, the wood veneer is conveyed and stacked through the discharging conveying belt 9, and the automatic clamp 15 above the front side of the small driving sprocket 16 feeds materials, the automatic clamp 15 below the front side of the small driving chain wheel 16 discharges materials, and the feeding and discharging of the flowing water type drying of the wood veneers are realized.

The above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art should understand that they can make various changes, modifications, additions and substitutions within the spirit and scope of the present invention.

Claims (4)

1. The utility model provides a timber veneer is chain conveyor for tunnel drying, includes chain conveyor (4), chain conveyor (4) run through and install and be used for carrying timber veneer in tunnel drying room body (2), its characterized in that: the chain conveyor (4) comprises a rack (3), a No. I driven shaft (18) and a No. II driven shaft (11) are respectively installed at two ends of the rack (3) in parallel through a bearing (13) with a seat, a No. I driven sprocket (14) is respectively installed at two ends of the No. I driven shaft (18), a No. II driven sprocket (10) is respectively installed at two ends of the No. II driven shaft (11), a driving shaft (17) is also installed in parallel on the upper portion or the lower portion in front of the No. I driven shaft (18) through the bearing (13) with the seat, a small driving sprocket (16) is respectively installed at two ends of the driving shaft (17), and the small driving sprocket (16), the No. I driven sprocket (14) and the No. II driven sprocket (10) at corresponding ends are connected in a closed loop mode through a plate type conveying chain (12); one end of the driving shaft (17) is connected with a stepping motor (5); an automatic clamp (15) for clamping a wood veneer is arranged between chain plates (19) corresponding to each section of the two plate-type conveying chains (12); the diameter of the small driving chain wheel (16) is smaller than the diameters of the No. I driven chain wheel (14) and the No. II driven chain wheel (10); automatic press from both sides (15) including fixed link rod (20), the both ends of fixed link rod (20) respectively with chain board (19) fixed connection of two board-like conveying chains (12) that correspond, vertical many fixed clamping bars (24) of being fixed with on fixed link rod (20), fixed link rod (20) of every fixed clamping bar (24) front side all is provided with an elasticity strip (21) or articulated seat, be connected with one on every elasticity strip (21) or the articulated seat and set up movable clamping bar (22) in fixed clamping bar (24) front side, install a torsional spring (23) between activity clamping bar (22) and fixed clamping bar (24), torsional spring (23) struts elastic connection with activity clamping bar (22) and fixed clamping bar (24), guarantee at No. I driven sprocket (14) and No. II driven sprocket (10) and No. I driven sprocket (14) and No. II fixed clamping bar (22) on board-like conveying chains (12) between driven sprocket (10) and No. I driven sprocket (14) and No. II fixed clamping bar (24), every activity clamping bar (22) and the fixed clamping bar (23) of adjacent front side The fixed clamping rod (24) on the connecting rod (20) is in a close state, and the movable clamping rod (22) at the small driving chain wheel (16) and the fixed clamping rod (24) on the fixed connecting rod (20) at the adjacent front side are in a separated state.

2. The chain conveying device for tunnel type drying of wood veneers according to claim 1, characterized in that: the middle parts of the fixed clamping rods (24) are connected into a whole through a connecting rod (25).

3. The chain conveying device for tunnel type drying of wood veneers according to claim 1, characterized in that: the front side top of little driving sprocket (16) be provided with be used for with feeding conveyer belt (8) that timber veneer fed was carried, outer line sensor (6) are installed to the discharge end of feeding conveyer belt (8), outer line sensor (6) are connected with controller (7), controller (7) still are connected with step motor (5) through the control line, the work of signal control step motor (5) that controller (7) transmitted according to outer line sensor (6).

4. The chain conveying device for tunnel type drying of wood veneers according to claim 1, characterized in that: and a discharging conveyer belt (9) for discharging and conveying the wood veneer is arranged below the front side of the small driving chain wheel (16).

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