Two-dimensional code reading device for profile processing

Abstract

The invention discloses a two-dimensional code reading device for profile processing, and relates to the technical field of furniture profile processing, the two-dimensional code reading device comprises a roller table and a code scanner located above the roller table, the code scanner is connected with the roller table through a moving and supporting mechanism, and the moving and supporting mechanism comprises a bearing plate horizontally located above the roller table; the code scanner and the roller table are connected through the moving and supporting mechanism, the photoelectric sensor is arranged on the moving path of the sectional material, when the induction track line of the photoelectric sensor is separated from the sectional material, the code scanner is driven by the driving assembly to move, and the sectional material is driven to move by the driving assembly. And at the moment, the driving assembly enables the moving block unit to drive the code scanner to linearly move on the bearing plate, so that the code scanner can synchronously follow the profile to move.

Description

Technical Field

[0001] The invention relates to the technical field of furniture profile processing, and in particular to a two-dimensional code reading device for profile processing. Background Art

[0002] In the automated processing production line, the corresponding integrated cutting machine will cut the profile into various lengths according to the design requirements. Usually, a QR code with data such as the length of the profile is sequentially pasted on each cut profile. After the QR code is read by the corresponding QR code reading device, it is accurately conveyed to the corresponding processing equipment station through the conveyor belt running through the entire production line.

[0003] For example, an existing two-dimensional code reading device has a Chinese patent publication number of CN105608404B, and the name of the patent is "a two-dimensional code reading device for banknote strapping". When the bundled banknotes are transported to the optical signal receiver through the transmission component, the bundled banknotes block the optical signal from the optical signal transmitter, so that the optical signal receiver cannot receive the optical signal. At this time, the optical signal receiver sends a signal to the drive motor and the two-dimensional code scanning component to stop the drive motor and start the two-dimensional code scanning component to scan the two-dimensional code on the strapping belt. After the two-dimensional code scanning component completes the scanning, it transmits a signal to the drive component to restart the drive component.

[0004] The above scheme utilizes the consistency of banknote length. When the light signal is blocked, the driving motor is stopped and the QR code scanning component is enabled. However, the disadvantage is that when the conveyor belt is transporting profiles of different lengths, each time the light signal is blocked, the position of the profile photographed by the QR code scanning component is not the position of the QR code, and it is easy for the QR code scanning component to fail to scan the QR code on the profile. To solve the above problem, we propose a QR code reading device for profile processing. Summary of the invention

[0005] The purpose of the present invention is to provide a two-dimensional code reading device for profile processing to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A two-dimensional code reading device for profile processing includes a roller table and a code scanner located above the roller table, wherein the code scanner and the roller table are connected via a shifting mechanism, and the shifting mechanism includes:

[0008] The stand assembly includes a support plate horizontally located above the roller table, on which a moving block unit is linearly slidably mounted, and the moving block unit can drive the barcode scanner and the profile on the roller table to follow the movement during forward movement;

[0009] The driving assembly includes an endless belt unit installed on the supporting plate, the endless belt unit is connected to the driving roller of the roller table through a transmission unit, the moving block unit has an extended state for receiving the driving force of the endless belt unit, and the moving block unit can move forward on the supporting plate when in the extended state;

[0010] The trigger assembly comprises a photoelectric sensor whose sensing track line overlaps with the profile track line on the roller table. When the sensing track line of the photoelectric sensor is separated from the profile, the moving block unit switches to the extended state.

[0011] Preferably, the bottom of the support plate is fixed to the roller table through a plurality of supporting legs, and a long strip-shaped shooting port is provided on the top of the support plate, and the barcode scanner can follow the QR code on the profile through the shooting port.

[0012] Preferably, the moving block unit includes a long column block, both ends of the long column block are slidably connected to the supporting plate via a slide rail unit, and the column position of the long column block aligned with the shooting port is fixed to the barcode scanner.

[0013] Preferably, each of the slide rail units comprises a guide rail rod movably penetrating the side surface of the end of the long column block, and both ends of the guide rail rod are fixed to the supporting plate through a fixing block.

[0014] Preferably, a accommodating cavity is opened in the column body of the long column block, a long strip opening is opened in the bottom of the accommodating cavity, a sliding box is provided in the accommodating cavity, a telescopic unit is installed on the sliding box, the telescopic unit has a downward inserted state that is engaged with the circulating belt unit, and the telescopic unit also has an upward retracted state that is separated from the circulating belt unit.

[0015] Preferably, the telescopic unit includes a threaded rod which is movable and penetrates the sliding box vertically, a driving motor is coaxially fixed to the top of the threaded rod, and both sides of the threaded rod are respectively meshed with a first tooth column and a second tooth column, both ends of the first tooth column and both ends of the second tooth column are rotatably connected to the corresponding side walls of the sliding box through a one-way ratchet, and when the driving motor rotates forward, the telescopic unit is in a downward inserted state.

[0016] Preferably, a driving gear is fixedly sleeved on the first gear column, and a rack capable of meshing and transmitting with the driving gear is fixed on the inner bottom of the accommodating cavity. When the driving gear rotates on the rack, the telescopic unit is in a retracted state.

[0017] Preferably, a flat plate is fixed on the top of the driving motor, a plurality of sliding rods are movably penetrated on the flat plate, and the bottom end of each sliding rod is fixed to the top of the sliding box.

[0018] Preferably, the circulating belt unit comprises support plates fixed at both ends of the shooting port, each of the support plates is rotatably mounted with a pulley, and a chain belt transmission-connected to the pulley is provided in the shooting port.

[0019] Preferably, the transmission unit includes a transmission shaft rotatably mounted with the support plate, one end of the transmission shaft is transmission-connected to the driving roller of the roller table via a transmission chain, and the other end of the transmission shaft is transmission-connected to the pulley via a worm assembly.

[0020] In the above technical scheme, the present invention provides a two-dimensional code reading device for profile processing, which connects the scanner and the roller table through a shifting mechanism, and arranges a photoelectric sensor on the path of the profile movement. In actual use, the profile is transported and moved on the track table. When the sensing track line of the photoelectric sensor is separated from the profile, the driving component enables the moving block unit to drive the scanner to move in a straight line on the support plate, so that the scanner can follow the profile synchronously, so that the profile and the scanner are in a relatively static state, ensuring that the two-dimensional codes on profiles of different lengths can be successfully photographed and read, and the roller table operates normally during the whole process, which will not affect the conveying process of the profile. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is an overall schematic diagram of a two-dimensional code reading device for profile processing of the present invention;

[0023] Figure 2 It is a schematic diagram of a stand assembly of a two-dimensional code reading device for profile processing according to the present invention on a track stand;

[0024] Figure 3 This is a schematic diagram of a driving component of a two-dimensional code reading device for profile processing according to the present invention;

[0025] Figure 4 A schematic top view of a two-dimensional code reading device for profile processing according to the present invention;

[0026] Figure 5 For the present invention Figure 4 Schematic diagram of the cross section at AA;

[0027] Figure 6 It is a cross-sectional top view of a receiving cavity of a two-dimensional code reading device for profile processing of the present invention in a long column block;

[0028] Figure 7 The present invention is a partial cross-sectional schematic diagram of a telescopic unit of a two-dimensional code reading device for profile processing in a sliding box.

[0029] Description of reference numerals:

[0030] 1. Roller table; 2. Barcode scanner; 3. Stand assembly; 3.1. Support plate; 3.2. Moving block unit; 3.21. Long column block; 3.22. Slide rail unit; 3.221. Guide rail rod; 3.222. Fixed block; 3.223. Support wheel; 3.23. Accommodating chamber; 3.231. First wall surface; 3.232. Second wall surface; 3.24. Long strip opening; 3.25. Sliding box; 3.3. Support leg; 3.4. Shooting opening; 4. Driving assembly; 4.1. Circular belt unit; 4.11. Support plate; 4.12. Pulley; 4.13. Chain belt; 4.13 1. First belt body; 4.132. Second belt body; 4.14. Plug-in ring; 4.2. Transmission unit; 4.21. Transmission shaft; 4.22. Transmission chain; 4.23. Worm assembly; 4.231. Worm wheel; 4.232. Worm; 5. Telescopic unit; 5.1. Threaded rod; 5.2. Drive motor; 5.3. First gear column; 5.4. Second gear column; 5.5. One-way ratchet; 5.6. Drive gear; 5.7. Rack; 5.8. Flat plate; 5.9. Sliding rod; 6. Trigger assembly; 6.1. Photoelectric sensor; 6.2. Optical signal receiver; 7. Axle. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] See also Figure 1-7 The embodiment of the present invention provides a two-dimensional code reading device for profile processing, comprising a roller table 1 and a code scanner 2 located above the roller table 1, wherein the code scanner 2 is connected to the roller table 1 through a shifting mechanism, and the shifting mechanism comprises:

[0033] The stand assembly 3 includes a support plate 3.1 horizontally located above the roller table 1, on which a moving block unit 3.2 is linearly slidably mounted, and the moving block unit 3.2 can drive the barcode scanner 2 and the profile on the roller table 1 to follow the movement during forward movement;

[0034] The driving assembly 4 includes an endless belt unit 4.1 installed on the supporting plate 3.1, the endless belt unit 4.1 is connected to the driving roller of the roller table 1 through a transmission unit 4.2, and the moving block unit 3.2 has an extended state for receiving the driving force of the endless belt unit 4.1, and the moving block unit 3.2 can move forward on the supporting plate 3.1 when it is in the extended state;

[0035] The trigger assembly 6 comprises a photoelectric sensor 6.1 whose sensing track line overlaps with the track line of the profile on the roller table 1. When the sensing track line of the photoelectric sensor 6.1 separates from the profile, the moving block unit 3.2 switches to the extended state;

[0036] Specifically, the roller table 1 runs through the entire production line. The roller table 1 can be selected as a roller conveyor table, which plays the role of conveying the profiles. It is mainly composed of a base table, a conveying surface composed of a plurality of rotatably mounted power rollers arranged in parallel on the base table, and the profiles are conveyed to various processing stations on the conveying surface. The barcode scanner 2 is a two-dimensional code recognition machine. The support plate 3.1 is horizontally arranged above the roller table 1. The moving track line of the moving block unit 3.2 on the support plate 3.1 is parallel to the conveying track line of the roller table 1 for the profiles. The roller table 1 is also fixed with an optical signal receiver 6.2 arranged opposite to the photoelectric sensor 6.1;

[0037] In actual use, when the profile is conveyed by the roller table 1 through the stand assembly 3, when the profile is between the optical signal receiver 6.2 and the photoelectric sensor 6.1, the moving block unit 3.2 is still in a stationary state. When the profile is separated from the optical signal receiver 6.2 and the photoelectric sensor 6.1, the driving assembly causes the moving block unit to drive the code scanner to move linearly on the support plate, so that the code scanner can synchronously follow the profile, so that the profile and the code scanner are in a relatively stationary state. That is to say, when the profile blocks the photoelectric sensor 6.1, the moving block unit 3.2 will not be triggered to enter the extended state. Only when the optical signal receiver 6.2 receives the signal from the photoelectric sensor 6.1 again, the moving block unit 3.2 will be triggered to enter the extended state, thereby ensuring that the two-dimensional codes on profiles of different lengths can be successfully photographed and read, and the roller table operates normally during the whole process, which will not affect the conveying process of the profile.

[0038] It should be noted that in order to ensure that profiles of different lengths can be affixed with QR codes, the QR code is usually pasted close to the side of the cut end of the profile, so that the position of the QR code on the profile and the distance from the cut end of the profile are fixed, and the signal light of the photoelectric sensor 6.1 will also be detached from the cut end of the profile, thereby ensuring that the scanner 2 can accurately correspond to the position of the QR code on the profile each time, and the scanner 2 can synchronously follow the movement of the profile, so that the profile and the scanner are in a relatively static state, which is conducive to further improving the success rate of the scanner 2 in shooting and scanning the QR code on the profile.

[0039] In another embodiment provided by the present invention, the bottom of the support plate 3.1 is fixed to the roller table 1 through a plurality of supporting legs 3.3, and a long strip-shaped shooting port 3.4 is provided on the top of the support plate 3.1. The shooting port 3.4 is composed of a plurality of parallel rectangular through-ports. The length direction line of the shooting port 3.4 is parallel to the moving trajectory line of the profile, and the mouth surface of the shooting port 3.4 is directly opposite to the moving trajectory line of the profile. The barcode scanner 2 can follow the QR code on the profile through the shooting port 3.4;

[0040] Furthermore, the moving block unit 3.2 includes a long column block 3.21, the length direction line of the long column block 3.21 is perpendicular to the length direction line of the shooting port 3.4, and both ends of the long column block 3.21 are slidably connected to the supporting plate 3.1 through a slide rail unit 3.22. The slide rail unit 3.22 enables the long column block 3.21 to move linearly along the length direction line of the shooting port 3.4. The column position of the long column block 3.21 aligned with the shooting port 3.4 is fixed to the code scanner 2, thereby ensuring that the code scanner 2 can normally shoot the QR code on the profile through the supporting plate 3.1;

[0041] Each slide rail unit 3.22 includes a guide rail rod 3.221 that movably passes through the side of the end of the long column block 3.21. The length direction line of the guide rail rod 3.221 is parallel to the length direction line of the shooting port 3.4. Both ends of the guide rail rod 3.221 are fixed to the support plate 3.1 through a fixing block 3.222. Both ends of the long column block 3.21 are rollingly installed with support wheels 3.223 that contact the top of the support plate 3.1 to reduce the resistance of the long column block 3.21 when it moves.

[0042] In actual use, when the long column block 3.21 moves along the length direction line of the shooting port 3.4, when the moving direction of the long column block 3.21 is consistent with the moving direction of the profile, it is the forward movement of the long column block 3.21. The long column block 3.21 can drive the barcode scanner 2 and the profile to follow the movement synchronously during the forward movement. When the moving direction of the long column block 3.21 is opposite to the moving direction of the profile, it is the reverse movement of the long column block 3.21, so that the long column block 3.21 drives the barcode scanner 2 to return to its initial position.

[0043] In another embodiment provided by the present invention, a receiving cavity 3.23 is provided in the column of the long column block 3.21, the length direction line of the rectangular cavity is parallel to the length direction line of the long column block 3.21, a long strip opening 3.24 is provided at the bottom of the receiving cavity 3.23, the length direction line of the long strip opening 3.24 is parallel to the length direction line of the long column block 3.21, a sliding box 3.25 is provided in the receiving cavity 3.23, and a moving wheel is installed on the sliding box 3.25;

[0044] The sliding box 3.25 can move horizontally and vertically in the accommodating cavity 3.23. The trajectory of the horizontal movement is parallel to the length direction line of the long column block 3.21, and the trajectory of the vertical movement is parallel to the length direction line of the shooting port 3.4, that is, the trajectory of the horizontal movement is perpendicular to the trajectory of the vertical movement. In addition, the accommodating cavity 3.23 is a rectangular cavity with a long column structure. The inner wall surface of the accommodating cavity 3.23 has a first wall surface 3.231 and a second wall surface 3.232. The first wall surface 3.231 and the second wall surface 3.232 are opposite and parallel.

[0045] The sliding box 3.25 has a first lateral movement in contact with and slides with the first wall surface 3.231 when it moves laterally, and a second lateral movement in contact with and slides with the second wall surface 3.232 when it moves laterally; the sliding box 3.25 has a first longitudinal movement from the second wall surface 3.232 toward the first wall surface 3.231 when it moves longitudinally, and a second longitudinal movement from the first wall surface 3.231 toward the second wall surface 3.232 when it moves longitudinally, that is, the moving trajectory of the sliding box 3.25 in the accommodating cavity 3.23 is a rectangular line, which is a rectangular trajectory formed by connecting the trajectory lines of the first lateral movement, the second lateral movement, the first longitudinal movement, and the second longitudinal movement end to end;

[0046] Further, a telescopic unit 5 is installed on the sliding box 3.25, and the telescopic unit 5 has a downward insertion state that is engaged with the endless belt unit 4.1, and the telescopic unit 5 also has an upward retracted state that is separated from the endless belt unit 4.1. The telescopic unit 5 includes a threaded rod 5.1 that moves vertically through the sliding box 3.25, and the threaded rod 5.1 is preferably a worm, and the axis of the threaded rod 5.1 is perpendicular to the horizontal plane. A driving motor 5.2 is coaxially fixed to the top of the threaded rod 5.1, and the two sides of the threaded rod 5.1 are respectively meshed with first tooth columns 5.3 and a second tooth column 5.4, the first tooth column 5.3 and the second tooth column 5.4 are parallel to each other on the same horizontal plane, both ends of the first tooth column 5.3 and the second tooth column 5.4 are rotatably connected to the corresponding side walls of the sliding box 3.25 through a one-way ratchet 5.5, the first tooth column 5.3 and the second tooth column 5.4 can only rotate in one direction, the rotation directions of the first tooth column 5.3 and the second tooth column 5.4 are opposite to each other, the driving motor 5.2 rotates forwardly, and the telescopic unit 5 is in a downward insertion state, and the driving motor 5.2 is signal-connected to the trigger component 6;

[0047] Furthermore, a driving gear 5.6 is fixedly sleeved on the first gear column 5.3, and a rack 5.7 capable of meshing with the driving gear 5.6 for transmission is fixed on the inner bottom of the accommodating cavity 3.23. The length direction line of the rack 5.7 coincides with the trajectory line of the first longitudinal movement. When the driving gear 5.6 rotates on the rack 5.7, the telescopic unit 5 is in the retracted state;

[0048] In addition, a plane plate 5.8 is fixed on the top of the driving motor 5.2, and a plurality of slide bars 5.9 are movable through the upper portion of the plane plate 5.8, and the bottom end of each slide bar 5.9 is fixed to the top of the sliding box 3.25, and the axis of each slide bar 5.9 is perpendicular to the horizontal plane, and the slide bar 5.9 can limit the axial deflection of the body of the driving motor 5.2 during rotation;

[0049] During actual use, when the profile is separated from between the optical signal receiver 6.2 and the photoelectric sensor 6.1, the drive motor 5.2 is started, and the output shaft of the drive motor 5.2 rotates in the forward direction, thereby causing the threaded rod 5.1 to rotate in the forward direction. At this time, under the action of gravity of the drive motor 5.2 and the threaded rod 5.1, the bottom end of the threaded rod 5.1 extends toward the circulating belt unit 4.1. For example, when the drive motor 5.2 is electrically connected to a time control module, when the start-up time of the drive motor 5.2 reaches a preset time, such as 0.1 seconds, 0.5 seconds or 1 second, the drive motor 5.2 stops rotating, and the threaded rod 5.1 is plugged into the circulating belt unit 4.1. At this time, the telescopic unit 5 is in a downward plugged state and is engaged with the circulating belt unit 4.1.

[0050] In another embodiment provided by the present invention, the circulating belt unit 4.1 includes support plates 4.11 fixed at both ends of the shooting port 3.4, the plate surface of the support plates 4.11 is parallel to the horizontal plane, and each support plate 4.11 is rotatably mounted with a pulley 4.12, the wheel surface of the pulley 4.12 is parallel to the horizontal plane, and a wheel axle 7 is fixed on the wheel body of the pulley 4.12, and the wheel axle 7 is vertically rotatably mounted on the plate surface of the support plate 4.11, and a chain ring belt 4.13 connected to the pulley 4.12 in a transmission manner is provided in the shooting port 3.4, and a plurality of evenly distributed plug-in rings 4.14 are fixed on the top surface of the chain ring belt 4.13, and each plug-in ring 4.14 can be plugged with the threaded rod 5.1 in the downward inserted state;

[0051] The transmission unit 4.2 includes a transmission shaft 4.21 rotatably mounted with the support plate 3.1, the axis of the transmission shaft 4.21 is parallel to the horizontal plane, one end of the transmission shaft 4.21 is transmission-connected with the driving roller of the roller table 1 through a transmission chain 4.22, and the other end of the transmission shaft 4.21 is transmission-connected with the pulley 4.12 through a worm assembly 4.23, the worm assembly 4.23 includes a worm wheel 4.231 fixedly sleeved with the wheel shaft 7, and one side of the worm wheel 4.231 is meshed with a worm 4.232 coaxially fixed with the transmission shaft 4.21;

[0052] In actual use, the transmission chain 4.22 transmits the power of the power roller of the roller table 1 to the transmission shaft 4.21, and the transmission shaft 4.21, under the transmission effect of the worm assembly 4.23, causes the wheel shaft 7 to drive the chain ring belt 4.13 to rotate cyclically through the pulley 4.12, wherein the chain ring belt 4.13 has two belt bodies that are parallel to each other and parallel to the length direction line of the shooting port 3.4, wherein the first belt body 4.131 has the same moving direction as the profile conveying direction, and the second belt body 4.132 has the opposite moving direction to the profile conveying direction;

[0053] It should be particularly noted that the position where the threaded rod 5.1 contacts the chain ring belt 4.13 when in the downward insertion state is on the first belt body portion 4.131. At this time, the threaded rod 5.1 is plugged into the plug ring 4.14, and then the threaded rod 5.1 moves synchronously with the moving direction of the profile along with the first belt body portion 4.131. In this process, the threaded rod 5.1 drives the sliding box 3.25 to move toward the first wall surface portion 3.231 in the horizontal direction. When the sliding box 3.25 is squeezed with the first wall surface portion 3.231 of the accommodating chamber 3.23, the threaded rod 5.1 continues to be driven by the first belt body portion 4.131, and the threaded rod 5.1 drives the sliding box 3.25 to continue to move synchronously along the moving direction of the profile, so that the sliding box 3.25 generates a driving force on the long column block 3.21 along the length direction line of the shooting port 3.4, so that the long column block 3.21 is in a positive movement;

[0054] When the threaded rod 5.1 reaches the moving end of the first belt body portion 4.131, the threaded rod 5.1 needs to be transferred from the first belt body portion 4.131 to the second belt body portion 4.132. During this process, the sliding box 3.25 performs a first lateral movement in the accommodating cavity 3.23 by contacting and sliding along the first wall surface portion 3.231.

[0055] When the threaded rod 5.1 reaches the second belt body portion 4.132, as the chain link belt 4.13 continues to move, the threaded rod 5.1 drives the sliding box 3.25 to move toward the second wall surface portion 3.232 in the horizontal direction for a second longitudinal movement;

[0056] When the sliding box 3.25 is pressed against the second wall surface 3.232 of the accommodating chamber 3.23, the threaded rod 5.1 continues to be driven by the second belt body 4.132, and the threaded rod 5.1 drives the sliding box 3.25 to move in the opposite direction of the profile movement, so that the sliding box 3.25 generates a driving force on the long column block 3.21 along the length direction line of the shooting port 3.4, that is, the moving direction of the long column block 3.21 is opposite to the moving direction of the profile, and this is the reverse movement of the long column block 3.21;

[0057] When the threaded rod 5.1 reaches the moving end of the second belt body portion 4.132, the threaded rod 5.1 needs to be transferred from the second belt body portion 4.132 to the first belt body portion 4.131. During this process, the sliding box 3.25 performs a second lateral movement in the accommodating cavity 3.23 by contacting and sliding along the second wall surface portion 3.232.

[0058] When the threaded rod 5.1 reaches the first belt body portion 4.131, as the chain ring belt 4.13 continues to move, the threaded rod 5.1 drives the sliding box 3.25 to move toward the first wall surface portion 3.231 in the horizontal direction. It should be particularly noted that during the first longitudinal movement of the sliding box 3.25, the driving gear 5.6 meshes and rolls on the rack 5.7, so that the first tooth column 5.3 fixed to the driving gear 5.6 undergoes axial rotation, thereby causing the threaded rod 5.1 to undergo vertical upward movement. At this time, the threaded rod 5.1 is separated from the chain ring belt 4.13, so that The telescopic unit 5 is in an upward retracted state separated from the circulating belt unit 4.1. At this time, the long column block 3.21 is also in a state of recovering to the initial position and stopping moving, until the driving motor 5.2 is started next time to drive the threaded rod 5.1 to be plugged into the chain ring belt 4.13, and then the threaded rod 5.1 follows the first belt body 4.131 to move synchronously with the moving direction of the profile. That is to say, the technical solution in the present application can ensure that the barcode scanner 2 can follow the profile to scan and shoot, and the scanning success rate can also be ensured. At the same time, it can also drive the barcode scanner 2 to automatically recover to the initial position to prepare for the next follow-up scanning and shooting.

[0059] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A two-dimensional code reading device for profile processing, comprising a roller table (1) and a code scanner (2) located above the roller table (1), characterized in that: The code scanner (2) is connected to the roller table (1) via a shifting mechanism, and the shifting mechanism comprises: A stand assembly (3), comprising a support plate (3.1) horizontally located above the roller table (1), a moving block unit (3.2) being linearly slidably mounted on the support plate (3.1), the moving block unit (3.2) being capable of driving the barcode scanner (2) and the profile on the roller table (1) to follow the movement during forward movement; A driving assembly (4), comprising a circulating belt unit (4.1) mounted on a supporting plate (3.1), the circulating belt unit (4.1) being transmission-connected to a driving roller of a roller table (1) via a transmission unit (4.2), the moving block unit (3.2) having an extended state for receiving a driving force from the circulating belt unit (4.1), and the moving block unit (3.2) being able to perform a forward movement on the supporting plate (3.1) when in the extended state; The trigger assembly (6) comprises a photoelectric sensor (6.1) whose sensing track line overlaps with the profile track line on the roller table (1); when the sensing track line of the photoelectric sensor (6.1) is separated from the profile, the moving block unit (3.2) switches to the extended state.

2. A two-dimensional code reading device for profile processing according to claim 1, characterized in that: The bottom of the support plate (3.1) is fixed to the roller table (1) via a plurality of supporting legs (3.3), and a long strip-shaped shooting port (3.4) is provided on the top of the support plate (3.1), and the barcode scanner (2) can follow the QR code on the profile through the shooting port (3.4).

3. A two-dimensional code reading device for profile processing according to claim 2, characterized in that: The moving block unit (3.2) comprises a long column block (3.21), both ends of the long column block (3.21) are slidably connected to the supporting plate (3.1) via a slide rail unit (3.22), and the column position of the long column block (3.21) aligned with the shooting port (3.4) is fixed to the code scanner (2).

4. A two-dimensional code reading device for profile processing according to claim 3, characterized in that: Each of the slide rail units (3.22) comprises a guide rail rod (3.221) that movably penetrates the side surface of the end of the long column block (3.21), and both ends of the guide rail rod (3.221) are fixed to the support plate (3.1) through a fixing block (3.222).

5. A two-dimensional code reading device for profile processing according to claim 4, characterized in that: A receiving cavity (3.23) is provided in the column body of the long column block (3.21), a long strip opening (3.24) is provided in the bottom of the receiving cavity (3.23), a sliding box (3.25) is provided in the receiving cavity (3.23), a telescopic unit (5) is installed on the sliding box (3.25), the telescopic unit (5) has a downward insertion state in which it is engaged with the circulating belt unit (4.1), and the telescopic unit (5) also has an upward retracted state in which it is separated from the circulating belt unit (4.1).

6. A two-dimensional code reading device for profile processing according to claim 5, characterized in that: The telescopic unit (5) comprises a threaded rod (5.1) which is movable and penetrates the sliding box (3.25) vertically, a driving motor (5.2) is coaxially fixed to the top of the threaded rod (5.1), and the two sides of the threaded rod (5.1) are respectively meshed with a first tooth column (5.3) and a second tooth column (5.4), and both ends of the first tooth column (5.3) and the second tooth column (5.4) are rotationally connected to the corresponding side wall of the sliding box (3.25) through a one-way ratchet (5.5), and when the driving motor (5.2) rotates in the forward direction, the telescopic unit (5) is in a downward insertion state.

7. A two-dimensional code reading device for profile processing according to claim 6, characterized in that: A driving gear (5.6) is fixedly sleeved on the first gear column (5.3), and a rack (5.7) capable of meshing with the driving gear (5.6) for transmission is fixed on the inner bottom of the accommodating cavity (3.23); when the driving gear (5.6) rotates on the rack (5.7), the telescopic unit (5) is in an upwardly retracted state.

8. A two-dimensional code reading device for profile processing according to claim 7, characterized in that: A plane plate (5.8) is fixed on the top of the driving motor (5.2), and a plurality of sliding rods (5.9) are movable through the upper portion of the plane plate (5.8), and the bottom end of each sliding rod (5.9) is fixed to the top of the sliding box (3.25).

9. A two-dimensional code reading device for profile processing according to claim 8, characterized in that: The circulating belt unit (4.1) comprises support plates (4.11) fixed at both ends of the shooting port (3.4), each support plate (4.11) is rotatably mounted with a pulley (4.12), and a chain ring belt (4.13) drivingly connected to the pulley (4.12) is provided in the shooting port (3.4).

10. A two-dimensional code reading device for profile processing according to claim 9, characterized in that: The transmission unit (4.2) comprises a transmission shaft (4.21) rotatably mounted on the support plate (3.1); one end of the transmission shaft (4.21) is transmission-connected to a driving roller of the roller table (1) via a transmission chain (4.22); and the other end of the transmission shaft (4.21) is transmission-connected to a pulley (4.12) via a worm assembly (4.23).

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