Automatic batten screening machine

Abstract

The utility model discloses an automatic batten screening machine, which belongs to the field of plate mechanical equipment and comprises a machine frame, and a discharging mechanism, a first feeding mechanism, a second feeding mechanism, a third feeding mechanism, a transition feeding mechanism and a fourth feeding mechanism are sequentially arranged on the machine frame according to procedure connection. Wherein the rack is provided with at least one first camera above the first feeding mechanism, the rack is provided with at least one second camera group below the second feeding mechanism, and the rack is provided with at least one removing mechanism above the third feeding mechanism. In the batten conveying process, the upper end face and the lower end face of the batten are shot through the first camera set and the second camera set respectively, defects are recognized, and the plate feeding mechanism is screened and classified. Particularly, the first supporting rod and the second supporting rod are arranged in a staggered mode, cameras A and B of the second camera set are matched, different areas of the lower end face of the batten are shot twice front and back and then spliced, and therefore the batten does not need to be turned over, and the production efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model discloses plate mechanical equipment field, concretely is a kind of automatic screening machine of batten. BACKGROUND

[0002] Batten is a strip-shaped sheet. There are many kinds of battens, one kind of batten uses wood section (trunk is cut into a strip) as raw material, and is cut into pieces by cutting machine, which can also be called wood board. This wood board has various defects, for example: Figure 7 As shown in the figure, defect (1) is commonly known as "chopstick board", that is, there is a long strip of bark on the upper or lower edge of the wood board, the width of the bark is less than 1 cm, and the length of the bark is greater than one-half of the wood board itself; defect (2) is commonly known as "through board", that is, the wood board has bark on the upper and lower edges and the middle is through, or the wood board has bark on one of the upper and lower edges and the width of the bark is greater than 1 cm, and the length of the bark is greater than one-half of the wood board itself; defect (3) is commonly known as "rotten board", that is, a rotten wood board or a completely cracked wood board that cannot be reused; defect (4) is commonly known as "even board", that is, the two edges or one edge of the wood board is not even, and the wood board needs to be cut to be even; defect (5) is commonly known as "even board", that is, the two edges or one edge of the wood board is not even, and the wood board needs to be cut to be even; defect (5) is commonly known as "single-edge large knot board", that is, the edge of the wood board has a knot, and the diameter of the knot is greater than 1 cm.

[0003] At present, there is no board selection machine, and manual selection of boards is usually used, that is, workers visually inspect whether the wood board has defects, and need to manually carry, turn over and classify the wood board, which is low in efficiency. Therefore, it is necessary to design an automatic batten screening machine capable of continuous operation to improve production efficiency. SUMMARY

[0004] The utility model discloses a kind of automatic screening machines of batten, to overcome the above problems existing in prior art.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] An automatic batten screening machine includes a rack, and the rack is provided with:

[0007] A first feeding mechanism for feeding the battens one by one;

[0008] At least one first camera above the first feeding mechanism for shooting the upper end surface of the batten;

[0009] A second feeding mechanism for feeding the battens one by one; the upstream end of the second feeding mechanism is connected to the downstream end of the first feeding mechanism;

[0010] A second camera group is arranged below the second feeding mechanism and used for shooting the lower end surface of the board;

[0011] A third feeding mechanism is used for feeding the boards one by one, and the upstream end of the third feeding mechanism is connected to the downstream end of the second feeding mechanism.

[0012] At least one rejection mechanism is used for pushing the boards out of the third feeding mechanism.

[0013] A host computer is further arranged, which is electrically connected to the first camera, the second camera group and the rejection mechanism, and is used for acquiring the shooting images of the first camera and the second camera group and controlling the rejection mechanism according to the shooting images.

[0014] Further, the second feeding mechanism is a chain conveyor, which comprises at least two second chains arranged in the width direction and a plurality of second blocks arranged in the length direction of the second chains.

[0015] The second camera group comprises at least one camera A and at least one camera B, the camera A is used for shooting the area of the lower end surface of the board exposed through the first hollow part, the camera B is used for shooting the area of the lower end surface of the board exposed through the second hollow part, and the host computer is used for splicing the shooting images of the camera A and the camera B.

[0016] Further, a plurality of rejection mechanisms are arranged above the third feeding mechanism in the length direction.

[0017] Further, the rejection mechanism comprises a belt drive mechanism and a pushing plate, the belt drive mechanism is arranged above the third feeding mechanism, and the belt of the belt drive mechanism is arranged in the width direction, the belt is fixedly provided with at least one pushing plate.

[0018] Further, the rejection mechanism further comprises a first motor, the base of the belt drive mechanism is rotatably arranged on the rack, and the first motor is arranged.

[0019] Further, the rack is further provided with a discharging mechanism, which is used for placing the boards one by one on the upstream end of the first feeding mechanism.

[0020] Further, the first feeding mechanism is a chain conveyor, comprising at least two first chains arranged in the width direction and spaced apart, and a plurality of first stop blocks arranged in the length direction of the first chains; the frame is provided with a plurality of third supporting members arranged in the width direction at the upper end of the first chains, forming a conveying table for the boards; the discharging mechanism comprises a storage tank arranged above the first feeding mechanism, a plurality of boards are stacked in the storage tank, and the bottommost board abuts against the third supporting members; when the first chains rotate, the bottommost board is taken out of the discharge port of the storage tank by the first stop blocks.

[0021] Further, the third feeding mechanism is a chain conveyor, comprising at least two third chains arranged in the width direction and spaced apart, and a plurality of third stop blocks arranged in the length direction of the third chains; the frame is provided with a plurality of fourth supporting members arranged in the width direction at the upper end of the third chains, forming a conveying table for the boards.

[0022] Further, the downstream end of the third feeding mechanism is connected to the upstream end of the fourth feeding mechanism through a transition feeding mechanism.

[0023] Compared with the prior art, the present application has the following advantages:

[0024] Firstly, in the process of conveying the boards by the feeding mechanism, the first camera and the second camera group take images of the upper and lower end faces of the boards respectively, identify defects, and classify the boards. In particular, the first and second supporting rods are arranged in a staggered manner, and the camera A and B of the second camera group are used to take images of different areas of the lower end face of the board twice and then splice them, so that the board does not need to be turned over, and the production efficiency is greatly improved.

[0025] Secondly, in the present application, the board automatic screening machine is controlled by the upper computer in a linkage mode, that is, after the board defects are identified, the boards are intermittently conveyed in a linkage mode, the time interval of the intermittent conveying and the image taking is the same, so that the machine can remember the position of the board, the rejection mechanism can accurately reject the boards with different defects, and the screening action is completed. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic diagram of the whole machine structure of the present application.

[0027] Figure 2 It is a schematic diagram of the structure of the discharging mechanism, the first feeding mechanism, the first camera, the second feeding mechanism, the second camera group and the upstream end of the third feeding mechanism in the present application.

[0028] Figure 3For the utility model, the structure schematic diagram of the first feeding mechanism and the second feeding mechanism lower half part under the perspective angle.

[0029] Figure 4 For the utility model, the structure schematic diagram of the third feeding mechanism and the reject mechanism.

[0030] Figure 5 For the utility model, the structure schematic diagram of the third feeding mechanism and the reject mechanism under the perspective angle.

[0031] Figure 6 For the utility model, the structure schematic diagram of the third feeding mechanism downstream end, transition feeding mechanism and fourth feeding mechanism upstream end under the perspective angle.

[0032] Figure 7 For the five kinds of defects of the wood board. Specific embodiments

[0033] The specific embodiments of the utility model are described below with reference to the drawings. In order to fully understand the utility model, many details are described below, but the utility model can be implemented without these details for those skilled in the art.

[0034] As Figures 1 to 5 The strip automatic screening machine includes the frame 1, and the frame 1 sequentially sets up the discharge mechanism 2, the first feeding mechanism 3, the second feeding mechanism 5, the third feeding mechanism 7, the transition feeding mechanism 9 and the fourth feeding mechanism 10 according to the procedure link. Wherein, the frame 1 is provided with at least one first camera 5 above the first feeding mechanism 3, is provided with at least one second camera group 6 below the second feeding mechanism 5, and is provided with at least one reject mechanism 9 above the third feeding mechanism.

[0035] In addition, the strip automatic screening machine further includes the host computer (not embodied in the drawing), and the host computer is electrically connected to the first camera, the second camera group and the reject mechanism. The host computer is used for obtaining the shooting image of the first camera and the second camera group, and controlling the reject mechanism according to the shooting image.

[0036] As Figures 1 to 5As shown, in specific use, the strip a of the discharge mechanism 2 passes through the first feeding mechanism 3, the second feeding mechanism 5, and the third feeding mechanism 7 in sequence. When the strip a passes through the first feeding mechanism 3, the first camera 5 takes a picture of the upper end face of the strip a. When the strip a passes through the second feeding mechanism 5, the second camera group 6 takes a picture of the lower end face of the strip a. The first camera 5 and the second camera group 6 send the pictures of the upper and lower end faces of the strip a to the host computer. The host computer compares the pictures with various pre-stored defect samples to determine whether the strip a has a defect. If the strip a has a defect, it is removed from the third feeding mechanism 7 by the rejection mechanism 9. The strip a without defects smoothly enters the fourth feeding mechanism 10 through the transition feeding mechanism 9, thereby realizing the automatic screening of the strips. The automatic slat sorting machine is controlled by a host computer through a linkage mechanism. After the defect of slat a is identified, the slat is intermittently conveyed in a linkage manner. The time interval between intermittent conveying and image capture is the same, so that the machine can remember the position of the slat. This makes it convenient for the rejection mechanism to accurately reject slats with different defects and complete the sorting action.

[0037] It should be noted that those skilled in the art can implement the technical feature of "the host computer comparing the captured image with various pre-stored defect samples to determine whether the slats have defects" by applying existing image processing and recognition technologies as needed, so it will not be elaborated here.

[0038] Below, with Figure 1 The left and right sides represent the length direction, and the front and back represent the width direction. The specific structure of each part will be described in more detail.

[0039] (a) First feeding mechanism

[0040] like Figures 1-3 As shown, the first feeding mechanism 3 is a chain conveyor, including a first chain 31, sprockets 32, and third support members 33. Specifically, it includes at least two first chains 31 spaced apart along the width direction. Each first chain 31 is driven between two sprockets 32 arranged along the length direction and is equipped with a drive motor (not shown in the figure) to actuate the sprockets 32. Furthermore, a number of first stops 311 are spaced apart along the length direction on the first chain 31. In addition, a number of third support members 33 are spaced apart along the width direction at the upper end of the first chain 31, forming a conveying platform for the slat a.

[0041] Of course, the first feeding mechanism 3 can also be a belt conveyor.

[0042] (ii) Discharge mechanism

[0043] like Figures 1-3As shown, the discharge mechanism 2 is used to place the strips a one by one at the upstream end of the first feeding mechanism 3.

[0044] The discharge mechanism 2 includes a storage trough 21, which is located above the first feeding mechanism. The storage trough 21 includes, but is not limited to, being formed by three vertically mounted plates on the frame 1, with a discharge port 211 formed on its bottom side. Several strips a are stacked inside the storage trough 21, with the bottommost strip a a abutting against several third support members 33. When the first chain 31 rotates, the first stop 311 pulls the bottommost strip a out of the discharge port 211 of the storage trough 21; simultaneously, under the influence of gravity, the other strips a fall one layer down; this process is repeated to achieve the sequential discharge of strips a, which are then continuously conveyed by the first feeding mechanism 3.

[0045] Preferably, the discharge mechanism 2 discharges the strip a laterally (e.g., Figure 3 As shown in the figure, it is more stable and more efficient than longitudinal discharge.

[0046] (III) First Camera

[0047] like Figures 1-3 As shown, the first camera 42 is fixed to the frame 1 by a mounting plate 41, and the first camera 42 is located above the first feeding mechanism 3. The first camera 42 captures images of the upper surface of each passing slat a. The first camera 42 includes, but is not limited to, a CCD camera. Furthermore, the host computer can pause the first feeding mechanism 3, holding each slat a briefly directly below the first camera 42 to further ensure the clarity of the captured images. Preferably, the frame 1 is also equipped with a supplementary light 43 for the first camera 42 to obtain clearer images.

[0048] (iv) Second feeding mechanism

[0049] like Figures 1-3 As shown, the second feeding mechanism 5 is used to convey the strips a one by one, and the upstream end of the second feeding mechanism 5 is connected to the downstream end of the first feeding mechanism 3.

[0050] The second feeding mechanism 5 is a chain conveyor, including a second chain 51, a first support member 52, and a second support member 53. Specifically, it includes at least two second chains 51 spaced apart along the width direction, and the second chains 51 are spaced apart along their length direction with a plurality of second stops 511. The arrangement of the second chains 51 and their sprockets, etc., is the same as that of the first feeding mechanism 3, and will not be described again here.

[0051] The frame 1 has several first support members 52 spaced apart along the width direction below the second chain 51, forming a first hollow portion 520. The frame 1 also has several second support members 53 spaced apart along the width direction below the second chain 51, forming a second hollow portion 530. Simultaneously, the first support members 51 and the second support members 53 are staggered in both the width and length directions, thus forming a conveyor platform for the slat a. The space between the first support members 51, the second support members 53, and the second chain 51 forms the conveying channel for the slat a.

[0052] (v) Second camera group

[0053] like Figures 1-3 As shown, the second camera group 6 is used to photograph the lower end face of slat a.

[0054] Specifically, the second camera group 6 includes at least one camera A61 and at least one camera B62. Camera A61 is used to photograph the area where the lower end face of the slat a is exposed through the first cutout portion 520, and camera B62 is used to photograph the area where the lower end face of the slat a is exposed through the second cutout portion 530.

[0055] In practical use, under the conveying of the second feeding mechanism 5, the strip a first reaches the first hollow section 520, and the camera A61 captures the area of ​​the lower end face of the strip a exposed at this time; then, under the conveying of the second feeding mechanism 5, the strip a reaches the second hollow section 530, and the camera B62 captures the area of ​​the lower end face of the strip a exposed at this time; finally, the host computer stitches together the images captured by the camera A61 and the camera B62 to obtain a complete image of the lower end face of the strip a, without the need to flip the strip a.

[0056] Preferably, the frame 1 is also equipped with multiple fill lights 63 for the second camera group 6 in order to obtain clearer images.

[0057] (vi) Third feeding mechanism

[0058] like Figures 1-5 As shown, the third feeding mechanism 7 is used to convey the strips a one by one, and the upstream end of the third feeding mechanism 7 is connected to the downstream end of the second feeding mechanism.

[0059] Specifically, the third feeding mechanism 7 is a chain conveyor, which includes at least two third chains 71 spaced apart along the width direction. Each third chain 71 is driven between two sprockets 72 arranged along the length direction and is equipped with a drive motor (not shown in the figure) to actuate the sprockets 72. Furthermore, a number of third stops 711 are spaced apart along the length direction of the third chain 71; the frame 1 has a number of fourth support members 73 spaced apart along the width direction at the upper end of the third chain 71, thereby forming the conveying platform of the slat a.

[0060] likeFigure 2 As shown, preferably, the third feeding mechanism 7 is driven by the same driving motor as the second feeding mechanism 5 through the chain 507, so that the third feeding mechanism 7 is synchronized with the second feeding mechanism 5.

[0061] Of course, the third feeding mechanism 7 can also be a belt conveyor.

[0062] (VI) Rejection mechanism

[0063] As shown in Figs. 4 and 5, the rejection mechanism 8 is used to reject the board a from the third feeding mechanism 7. The rejection mechanism 8 includes but is not limited to three, three rejection mechanisms 8 are arranged at intervals along the length direction and arranged above the third feeding mechanism 7. Each rejection mechanism 8 is used to reject the board a with different defects. Figure 1 Figure 5 Specifically, the rejection mechanism 8 includes a belt drive mechanism and a push plate 841. The rack 1 is provided with the above-mentioned belt drive mechanism above the third feeding mechanism 7, the above-mentioned belt drive mechanism includes a base 83, two pulleys 86 are rotatably arranged on the base 83, and one of the two pulleys 86 is provided with a second motor 85 to rotate it, a belt 84 is drivingly connected between the two pulleys 86, and the belt 84 is arranged along the width direction, and the belt 84 is fixedly provided with at least one push plate 841.

[0064] Of course, the belt drive mechanism can also be replaced by a chain drive mechanism.

[0065] Preferably, the belt 84 is fixedly provided with two push plates 841, and the belt 84 completes one rejection action every 1 / 2 revolution.

[0066] Preferably, the rejection mechanism 8 further includes a first motor 81, and the base 83 of the above-mentioned belt drive mechanism is rotatably arranged on the rack 1 and is provided with the above-mentioned first motor 81. Specifically, the shell of the first motor 81 is fixedly arranged on the rack 1 through the connecting plate 81, and the connecting part 831 of the base 83 is fixedly arranged on the output shaft 811 of the first motor 81.

[0067] In specific use process, if the rejection mechanism 8 is needed, the base 83 of the belt drive mechanism is rotated to the directly above of the third feeding mechanism 7 (i.e. the solid line position shown in Fig. 4) through the first motor 81; at this time, the belt 84 is arranged along the width direction, and the board a can be pushed out of the third feeding mechanism 7 along the width direction (i.e. rejection) through the push plate 841, so as to realize classification and screening. If the rejection mechanism 8 is not needed, the base 83 of the belt drive mechanism is rotated to the side above of the third feeding mechanism 7 (i.e. the dotted line position shown in Fig. 4) through the first motor 81, so as to facilitate the separate maintenance and other operations of the rejection mechanism 8.

[0068] In specific use process, if the rejection mechanism 8 is needed, the base 83 of the belt drive mechanism is rotated to the directly above of the third feeding mechanism 7 (i.e. the solid line position shown in Fig. 4) through the first motor 81; at this time, the belt 84 is arranged along the width direction, and the board a can be pushed out of the third feeding mechanism 7 along the width direction (i.e. rejection) through the push plate 841, so as to realize classification and screening. If the rejection mechanism 8 is not needed, the base 83 of the belt drive mechanism is rotated to the side above of the third feeding mechanism 7 (i.e. the dotted line position shown in Fig. 4) through the first motor 81, so as to facilitate the separate maintenance and other operations of the rejection mechanism 8. Figure 5 Figure 5 In specific use process, if the rejection mechanism 8 is needed, the base 83 of the belt drive mechanism is rotated to the directly above of the third feeding mechanism 7 (i.e. the solid line position shown in Fig. 4) through the first motor 81; at this time, the belt 84 is arranged along the width direction, and the board a can be pushed out of the third feeding mechanism 7 along the width direction (i.e. rejection) through the push plate 841, so as to realize classification and screening. If the rejection mechanism 8 is not needed, the base 83 of the belt drive mechanism is rotated to the side above of the third feeding mechanism 7 (i.e. the dotted line position shown in Fig. 4) through the first motor 81, so as to facilitate the separate maintenance and other operations of the rejection mechanism 8. ​​

[0069] (Seven) transition feeding mechanism and fourth feeding mechanism

[0070] As Figure 1 , as shown in 4 and Figure 5 , the downstream end of the third feeding mechanism 7 is connected to the upstream end of the fourth feeding mechanism 10 through the transition feeding mechanism 9. The main function of the transition feeding mechanism 9 is to make the board fly out at the same speed in front of the fourth feeding mechanism 10, so that the board falls to the fourth feeding mechanism 10 at the same and stable speed, facilitating the stacking and collecting of good boards a.

[0071] The above is only a specific embodiment of the present application, but the design concept of the present application is not limited thereto, and any non-substantial change to the present application using this concept shall be deemed to infringe the protection scope of the present application.

Claims

1. A machine for automatically sorting laths, comprising a frame provided with a first feeding mechanism for feeding the laths one by one, characterized in that: The first camera, the second feeding mechanism, the second camera group, the third feeding mechanism, the rejecting mechanism and the host computer are arranged. The first camera is arranged above the first feeding mechanism and is used for shooting the upper end surface of the board. The upstream end of the second feeding mechanism is connected to the downstream end of the first feeding mechanism. The second feeding mechanism is a chain conveyor, which comprises at least two second chains arranged in the width direction and a plurality of second blocks arranged in the length direction of the second chain. The first support members are arranged in the width direction below the second chain and form a first hollow part. The second support members are arranged in the width direction below the second chain and form a second hollow part.

2. A machine for automatically sorting slats according to claim 1, characterized in that: The first support members and the second support members are arranged staggered in the width and length directions.

3. A machine according to claim 1 or 2, characterised in that: The camera A is used for shooting the area of the lower end surface of the board exposed through the first hollow part.

4. A machine according to claim 3, wherein: The camera B is used for shooting the area of the lower end surface of the board exposed through the second hollow part.

5. A machine for automatically sorting slats according to claim 1, characterized in that: The third feeding mechanism is connected to the downstream end of the second feeding mechanism.

6. A machine for automatically sorting slats according to claim 5, characterized in that: The host computer is electrically connected to the first camera, the second camera group and the rejecting mechanism.

7. A machine for automatically sorting slats according to claim 1, characterized in that: The host computer is used for acquiring the shooting images of the first camera and the second camera group and controlling the rejecting mechanism according to the images.

8. A machine according to claim 1 or 7, characterised in that: The rejecting mechanism comprises a belt driving mechanism and a pushing plate. The base of the belt driving mechanism is rotatably arranged on the rack and is provided with the first motor. The rack is further provided with a discharging mechanism, which is used for placing the boards on the upstream end of the first feeding mechanism one by one. The first feeding mechanism is a chain conveyor, which comprises at least two first chains arranged in the width direction and a plurality of first blocks arranged in the length direction of the first chain. The third feeding mechanism is a chain conveyor, which comprises at least two third chains arranged in the width direction and a plurality of third blocks arranged in the length direction of the third chain. The downstream end of the third feeding mechanism is connected to the upstream end of the fourth feeding mechanism through a transition feeding mechanism.

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