Automatic discharging and weighing device suitable for strip materials with different lengths and control method

Abstract

The invention discloses an automatic discharging and weighing device suitable for strip materials with different lengths and a control method. The automatic discharging and weighing device comprises a control center, a conveying and discharging structure and a weighing structure, and the conveying and discharging structure and the weighing structure are in control connection with the control center; a discharging inclined guide plate is arranged on one side of a conveying mechanism of the conveying and discharging structure, the weighing structure is located below the discharging inclined guide plate, and when short materials are conveyed, the short materials slide to the middle position of a weighing table from the discharging inclined guide plate; when a long material is conveyed, the detection baffle is opened and the conveying mechanism stops feeding, the clamping and discharging trolley moves to the middle position of the long material through the trolley driving assembly under the control of the control center, the middle position of the long material is moved to the discharging inclined guide plate through the clamping part, and then the discharging baffle is opened, so that it is guaranteed that no matter whether the short material or the long material exists, the clamping and discharging efficiency is improved. The automatic weighing device has the advantages of being high in weighing precision, high in automation degree and the like.

Description

Technical Field

[0001] The invention relates to the field of strip material production and processing, and in particular to an automatic unloading weighing device and a control method suitable for strip materials of different lengths. Background Art

[0002] Existing long strip workpieces such as steel pipes and iron bars often need to go through processes such as forming, cutting, unloading, and weighing during the production process. In the prior art, the strip workpieces are usually manually transported to a weighing mechanism after being cut and unloaded, and then weighed, which has low production efficiency and high labor costs. Therefore, in order to improve the degree of automation, a weighing mechanism is provided at the unloading position of the strip workpiece, and the strip workpiece can be weighed directly after unloading.

[0003] However, in the actual production process, the length of the strips is often not uniform, and the automatic unloading and weighing structure in the prior art is unable to adjust the unloading position of the strips according to their lengths, thereby being unable to ensure that each strip falls accurately in the middle of the weighing table, which can easily lead to errors in the weighing results and have an adverse effect on the subsequent production process.

[0004] Therefore, in an environment where the requirements for weighing measurement accuracy are getting higher and higher, how to accurately place strips of different lengths on the middle position of the weighing platform every time to ensure weighing accuracy is a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] The object of the present invention is to provide an automatic unloading weighing device and a control method suitable for strips of different lengths, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] Provided is an automatic unloading and weighing device suitable for strips of different lengths, comprising a control center, a conveying and discharging structure and a weighing structure, wherein the conveying and discharging structure and the weighing structure are respectively connected to the control center for control; the conveying and discharging structure comprises a conveying mechanism arranged along the X direction, a discharging inclined guide plate is arranged on one side of the conveying mechanism, the weighing structure is located below the discharging inclined guide plate, and the discharging inclined guide plate is opposite to the middle position of the weighing structure; the conveying and discharging structure also comprises a clamping and discharging trolley capable of reciprocating along the X direction, the clamping and discharging trolley comprises a main body, a discharging baffle is movably arranged at one end of the main body close to the discharging inclined guide plate along the Y direction, the discharging baffle is connected to a first driving member, and under the action of the first driving member, the discharging baffle can be in an open position or a closed position, and the present invention A second driving member is arranged in the body along the Y direction, and a thrust plate is arranged at the output end of the second driving member, and the thrust plate is located on the inner side of the discharge baffle; a detection baffle mechanism is movably arranged on the side of the body away from the strip material feeding end along the X direction, and the detection baffle mechanism is connected to the third driving member, and under the action of the third driving member, the detection baffle mechanism can be in an open position or a closed position; when the discharge baffle is in the closed position, a material passing channel for the strip material to pass through is formed between the thrust plate and the discharge baffle, and by changing the position of the thrust plate, the thrust plate and the discharge baffle can clamp and convey the strip material; when the discharge baffle is in the open position, the thrust plate can push the strip material to leave the conveying mechanism and fall into the weighing structure along the discharge inclined guide plate.

[0008] Furthermore, the side of the discharge baffle close to the main body is hinged to the main body through a third rotating shaft, and the side away from the main body is hinged to the first driving member through a second rotating shaft. The first driving member is extended and retracted along the Y direction and drives the discharge baffle to rotate between an open position and a closed position with the third rotating shaft as the axis.

[0009] Furthermore, the detection baffle mechanism includes a detection baffle and a detector, and the detector is arranged at a position close to the bottom end of the detection baffle.

[0010] Furthermore, the third driving member is provided with a connecting shaft at the output end, and a connecting buckle is provided at the top of the detection baffle, and the connecting shaft is passed through the connecting buckle. The third driving member is extended and retracted along the X direction and drives the detection baffle to rotate between the open position and the closed position with the connecting shaft as the axis.

[0011] Furthermore, a trolley drive assembly is provided on the other side of the conveying mechanism, and the trolley drive assembly is drive-connected to the main body.

[0012] Furthermore, the weighing structure includes a receiving seat, a lifting mechanism, a fixed frame and a weighing scale. The fixed frame is mounted above the outer side of the weighing scale, the lifting mechanism is fixed in the fixed frame, the receiving seat is fixed at the output end of the lifting mechanism, and the receiving seat is movably arranged in the middle of the fixed frame. The receiving seat can contact or separate from the weighing scale under the drive of the lifting mechanism.

[0013] Furthermore, the weighing structure also includes a guide assembly, which includes a limit rod fixedly arranged on both sides of the receiving seat and a limit wheel cooperating with the limit rod, the limit wheel is fixedly arranged on both sides of the fixed frame, the limit rod includes a straight segment, and an inclined portion arranged at the upper end of the straight segment, when the receiving seat is lifted and lowered, the limit wheel contacts the straight segment and the two slide relative to each other, when the receiving seat is lowered to the lowest position, the bottom of the receiving seat contacts the weighing scale and the limit wheel and the inclined portion are disengaged from each other.

[0014] Furthermore, a slide groove is provided at the position where the straight line segment contacts the limiting wheel, and the limiting wheel slides in a limited direction in the slide groove.

[0015] An automatic unloading weighing control method applicable to strips of different lengths is provided, wherein the method is performed using the automatic unloading weighing device applicable to strips of different lengths, and the method comprises the following steps:

[0016] S1, placing an empty material storage frame on the weighing structure, and the weighing structure rises to the material receiving position;

[0017] S2, the conveying and discharging structure returns to the initial state, at which time the clamping and discharging trolley is located at the discharging position, the discharging baffle and the detection baffle mechanism are both in the closed position, and a material passage for the strip material to pass through is formed between the thrust plate and the discharging baffle;

[0018] S3, the control center receives the length information of the strip material to be transported, and the transport mechanism transports the strip material along the X direction until the end of the strip material contacts the detection baffle mechanism, and the detection baffle mechanism feeds back a signal to the control center, and the control center controls the transport mechanism to stop moving; when the length of the strip material is greater than a certain set value, the process proceeds to step S4; when the length of the strip material is less than a certain set value, the process proceeds to step S6;

[0019] S4, the control center calculates the center position of the strip material according to the length of the strip material, the third driving member drives the detection baffle mechanism to move to the open position, and the control center controls the clamping and discharging trolley to move along the X direction to the center position of the strip material and stop;

[0020] S5, the second driving member drives the thrust plate to move in the direction of the discharge baffle until the thrust plate and the discharge baffle clamp the strip material, and the control center controls the clamping discharge trolley to clamp the strip material and move in the opposite direction along the X direction to the discharge position and stop;

[0021] S6, the first driving member drives the discharge baffle to move to the open position, and the second driving member drives the thrust plate to move in the direction of the discharge baffle until the strip material is pushed away from the conveying mechanism and falls into the material storage frame along the discharge inclined guide plate;

[0022] S7, repeating steps S2-S6 until the number of strips in the material storage frame reaches a preset number; when the number of strips in the material storage frame reaches a preset number, proceeding to step S8;

[0023] S8, the weighing structure descends to the weighing position, and the strip material in the material storage frame is weighed. After the weighing is completed, the material storage frame is taken out from the weighing structure, and the automatic unloading and weighing of the strip material is completed.

[0024] Furthermore, when the clamping discharging trolley is in the discharging position, the centers of the discharging baffle, the discharging inclined guide plate, the storage frame and the weighing structure are located on the same straight line along the Y direction.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention provides an automatic unloading weighing device and a control method suitable for strip materials of different lengths, which utilize a conveying and discharging structure and a weighing structure to cooperate with each other, wherein the weighing structure is located below an inclined discharging guide plate of the conveying and discharging structure, and the inclined discharging guide plate is opposite to the middle position of the weighing structure; the conveying and discharging structure is also provided with a conveying mechanism and a clamping and discharging trolley, and the clamping and discharging trolley has the functions of detection and discharging, and when the strip material is conveyed to the detection baffle mechanism of the clamping and discharging trolley through the conveying mechanism, the conveying mechanism stops moving; when short material is conveyed, the discharging baffle is opened, and the short material slides from the discharging inclined guide plate to the middle position of the weighing structure; when long material is conveyed, The detection baffle mechanism is opened, and the clamping discharging trolley moves to the middle position of the long material through the trolley driving assembly under the control of the control center, and then the clamping discharging trolley forms a clamping part through the thrust plate and the discharging baffle, and the middle position of the long material is moved to the discharging inclined guide plate through the clamping part, and then the discharging baffle is opened, and the thrust plate pushes the long material to the middle position of the weighing structure. This arrangement ensures that both short and long materials can fall into the middle position of the weighing structure, and the weighing structure is provided with a guide assembly, which will not affect the accuracy of weighing while ensuring the stability of the lifting process of the weighing structure, thereby ensuring accurate weighing. The present invention has the characteristics of high weighing precision and high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is an overall structural diagram of an automatic unloading weighing device suitable for strips of different lengths of the present invention;

[0028] Figure 2 This is the overall structural diagram of the conveying and discharging structure of the present invention;

[0029] Figure 3 This is the overall structural diagram of the clamping and discharging trolley of the conveying and discharging structure of the present invention;

[0030] Figure 4 It is a side view of the discharging trolley when the discharging baffle of the present invention is in the open position;

[0031] Figure 5 It is a side view of the discharging baffle of the present invention when it is in the closed position and clamping the discharging trolley;

[0032] Figure 6 This is an overall structural diagram of the detection baffle mechanism of the conveying and discharging structure of the present invention;

[0033] Figure 7 It is a structural diagram of the rising state of the weighing structure of the present invention;

[0034] Figure 8 It is a structural diagram of the descending state of the weighing structure of the present invention;

[0035] Fig. 9 It is a side view of the weighing structure of the present invention;

[0036] Fig.10 This is an enlarged view of the connection between the limiting rod and the limiting wheel of the present invention;

[0037] The components in the attached drawings are marked as follows: 1. conveying and discharging structure; 11. conveying mechanism; 12. discharging inclined guide plate; 13. support frame; 14. trolley driving assembly; 15. clamping discharging trolley; 151. first driving member; 152. first rotating shaft; 153. second rotating shaft; 154. discharging baffle; 155. third rotating shaft; 156. second driving member; 157. thrust plate; 16. detection baffle mechanism; 161. detection baffle; 162. Connector; 163, detector; 164, third drive member; 165, connecting shaft; 17, control center; 2, weighing structure; 21, load-bearing platform; 22, lifting mechanism; 221, driving assembly; 222, transmission assembly; 223, lifting rod; 224, sleeve rod; 23, base; 24, weighing scale; 25, fixing frame; 26, supporting column; 27, limiting rod; 271, straight section; 272, inclined portion; 28, limiting wheel; 3, strip material. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. For the sake of clarity, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present application. That is to say, in some embodiments of the present application, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0039] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, in the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present application. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0041] In order to further understand the content, features and effects of the invention of the present application, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0042] See also Figures 1 to 6 The present invention provides an automatic unloading and weighing device suitable for strips of different lengths, including a control center 17, a conveying and discharging structure 1 and a weighing structure 2. The control center 17 can receive the length information of the strip 3 being conveyed at this time in advance, and the control center 17 determines whether the strip 3 being conveyed at this time is a long material or a short material according to the length information of the strip 3. The conveying and discharging structure 1 makes different transportation processes according to the short material or the long material. When the strip 3 is a short material, it reaches the designated position and directly pushes the unloading material to the weighing structure 2. When the strip 3 is a long material, a clamping and transportation process is added. The control center 17 can control the conveying and discharging structure 1 to move the long material clamping to the designated position, and then push the unloading material to the weighing structure 2 to ensure that whether it is a short material or a long material, it can fall in the middle position of the weighing structure 2 to ensure accurate weighing. The following provides an embodiment:

[0043] The conveying and discharging structure 1 and the weighing structure 2 are respectively connected to the control center 17; the conveying and discharging structure 1 includes a conveying mechanism 11 arranged along the X direction, and a discharging inclined guide plate 12 is arranged on one side of the conveying mechanism 11, and the weighing structure 2 is located below the discharging inclined guide plate 12, and the discharging inclined guide plate 12 is opposite to the middle position of the weighing structure 2; the conveying and discharging structure 1 also includes a clamping and discharging trolley 15 that can reciprocate along the X direction, and the clamping and discharging trolley 15 includes a main body, and a discharging baffle 154 is movably arranged at one end of the main body close to the discharging inclined guide plate 12 along the Y direction, and the discharging baffle 154 is connected to the first driving member 151, and under the action of the first driving member 151, the discharging baffle 154 can be in an open position or a closed position, and a second driving member 156 is arranged in the main body along the Y direction, and the output of the second driving member 156 A thrust plate 157 is provided at the end, and the thrust plate 157 is located on the inner side of the discharge baffle 154; a detection baffle mechanism 16 is movably provided on the side of the main body away from the feeding end of the strip material 3 along the X direction, and the detection baffle mechanism 16 is connected to the third driving member 164, and under the action of the third driving member 164, the detection baffle mechanism 16 can be in an open position or a closed position; when the discharge baffle 154 is in a closed position, a material passage for the strip material 3 to pass through is formed between the thrust plate 157 and the discharge baffle 154, and by changing the position of the thrust plate 157, the thrust plate 157 and the discharge baffle 154 can clamp and convey the strip material 3; when the discharge baffle 154 is in an open position, the thrust plate 157 can push the strip material 3 to leave the conveying mechanism 11 and fall into the weighing structure 2 along the discharge inclined guide plate 12.

[0044] For details, please refer to Figure 4 and Figure 5 The first driving member 151 is fixed to the upper end of the main body of the clamping discharge trolley 15 through the first rotating shaft 152. The side of the discharge baffle 154 close to the main body is hinged to the main body through the third rotating shaft 155, and the side away from the main body is hinged to the first driving member (151) through the second rotating shaft 153. The first driving member 151 is retracted along the Y direction and drives the discharge baffle 154 to rotate between the open position and the closed position with the third rotating shaft 155 as the axis. When the discharge baffle 154 is in the closed position, the first driving member 151 retracts, which will drive the discharge baffle 154 to rotate upward. Similarly, when the discharge baffle 154 is in the open position, the first driving member 151 extends, which will drive the discharge baffle 154 to rotate downward. The first driving member 151 can accurately control the rotation position of the discharge baffle 154 and provide supporting force.

[0045] For details, please refer to Figure 6The third driving member 164 is provided with a connecting shaft 165 at the end, and a connecting buckle 162 is provided at the top of the detection baffle 161. The connecting shaft 165 is inserted in the connecting buckle 162. The third driving member 164 is extended and retracted along the X direction and drives the detection baffle 161 to rotate between the open position and the closed position with the connecting shaft 165 as the axis. The detection baffle mechanism 16 includes a detection baffle 161 and a detector 163. The detector 163 is inserted at a position near the bottom of the plate surface of the detection baffle 161. Since the detector 163 is in a lower position, even if the diameter of the strip material 3 is small, the detector 163 can still detect it, and has a wide range of applications.

[0046] In this embodiment, a support frame 13 is provided at the lower end of the conveying mechanism 11, so that the discharging inclined guide plate 12 is set higher than the ground. A trolley drive assembly 14 is provided on the other side of the conveying mechanism 11. The trolley drive assembly 14 is connected to the main body of the clamping discharging trolley 15. When transporting long materials, the trolley drive assembly 14 drives the main body to move to the specified position and return.

[0047] In this example, see Figures 7 to 9 The weighing structure 2 includes a receiving seat, a lifting mechanism 22, a fixing frame 25 and a weighing scale 24. The fixing frame 25 is mounted above the outer side of the weighing scale 24. The lifting mechanism 22 is fixed in the fixing frame 25. The receiving seat is fixed at the output end of the lifting mechanism 22, and the receiving seat is movably arranged in the middle of the fixing frame 25. The receiving seat can contact or separate from the weighing scale 24 under the drive of the lifting mechanism 22. The receiving seat includes a bearing platform 21, a support column 26 and a base 23. The bearing platform 21 is provided with a strip-shaped bearing surface. There are multiple support columns 26 and they are fixed on the lower side of the bearing platform 21. The base 23 is fixed at the lower end of the support column 26 and forms a bottom surface that can be completely in contact with the weighing scale 24. The lifting mechanism 22 includes a driving component 221, a transmission component 222 and a plurality of lifting rods 223. The driving component 221 is fixed in a fixing frame 25. The output end of the driving component 221 drives the plurality of lifting rods 223 to perform lifting movements synchronously through the transmission component 222. The top of the lifting rod 223 is connected to the bottom of the load-bearing platform 21. A sleeve rod 224 is also sleeved on the periphery of the lifting rod 223. The lifting rod 223 is threadedly connected to the sleeve rod 224. When the lifting rod 223 is retracted into the sleeve rod 224, the sleeve rod 224 plays a protective role.

[0048] In this example, see Fig.10The weighing structure 2 also includes a guide assembly, which includes a limit rod (27) fixedly arranged on both sides of the receiving seat and a limit wheel (28) matched with the limit rod (27). The limit wheel (28) is fixedly arranged on both sides of the fixed frame (25). The limit rod (27) includes a straight section 271 and an inclined portion 272 arranged at the upper end of the straight section 271. When the receiving seat is lifted, the limit wheel (28) contacts the straight section 271 and slides relative to each other. When the receiving seat is lowered to the lowest position, the bottom of the receiving seat contacts the weighing scale (24) and the limit wheel (28) and the inclined portion 272 are separated from each other. The straight section 271 is provided with a slide groove at the contact point with the limit wheel (28), and the limit wheel (28) slides in a limited direction in the slide groove.

[0049] Specifically, when receiving materials, the receiving seat rises to the lower end of the discharging inclined guide plate 12 through the lifting mechanism 22. After receiving the materials, the receiving seat descends through the lifting mechanism 22 until the base 23 is completely in contact with the weighing scale 24. During the lifting process, the fixed frame 25 plays a protective role. The weighing structure 2 also includes a guide assembly, which includes a limit rod 27 fixedly arranged on both sides of the receiving seat and a limit wheel 28 matched with the limit rod 27. The limit wheel 28 is fixedly arranged on both sides of the fixed frame 25. The limit rod 27 includes a straight segment 271 and an inclined portion 272 arranged at the upper end of the straight segment 271. When the receiving seat is lifted and lowered, the limit wheel 28 contacts the straight segment 271 and slides relative to each other. When the receiving seat descends to the lowest position, the bottom of the receiving seat contacts the weighing scale 24 and the limit wheel 28 and the inclined portion 272 are separated from each other. In this way, the guide assembly will not be interfered with during the weighing process, so that the weighing is more accurate.

[0050] According to the automatic unloading weighing device applicable to strips of different lengths provided by the present invention, there is also provided an automatic unloading weighing control method applicable to strips of different lengths, the method adopting the automatic unloading weighing device applicable to strips of different lengths of the present invention for operation, the method comprising the following steps:

[0051] S1, placing an empty material storage frame on the weighing structure 2, the weighing structure 2 rises to the material receiving position, and the load-bearing platform 21 is located at the lower end of the discharging inclined guide plate 12;

[0052] S2, the conveying and discharging structure 1 returns to the initial state, at which time the clamping and discharging trolley 15 is located at the discharging position, the discharging baffle 154 and the detection baffle mechanism 16 are both in the closed position, and a material passage for the strip material 3 to pass through is formed between the thrust plate 157 and the discharging baffle 154;

[0053] S3, the control center 17 receives the length information of the strip material 3 to be transported, and the transport mechanism 11 transports the strip material 3 along the X direction until the end of the strip material 3 contacts the detection baffle mechanism 16, and the detection baffle mechanism 16 feeds back a signal to the control center 17, and the control center 17 controls the transport mechanism 11 to stop moving; when the length of the strip material 3 is greater than a certain set value, the process proceeds to step S4; when the length of the strip material 3 is less than a certain set value, the process proceeds to step S6;

[0054] S4, the control center 17 calculates the center position of the strip material 3 according to the length of the strip material 3, the third driving member 164 drives the detection baffle mechanism 16 to move to the open position, and the control center 17 controls the clamping and discharging trolley 15 to move along the X direction to the center position of the strip material 3 and stop;

[0055] S5, the second driving member 156 drives the thrust plate 157 to move in the direction of the discharge baffle 154 until the thrust plate 157 and the discharge baffle 154 clamp the strip material 3, and the control center 17 controls the clamping discharge trolley 15 to clamp the strip material 3 and move in the opposite direction along the X direction to the discharge position and stop;

[0056] S6, the first driving member 151 drives the discharge baffle 154 to move to the open position, and the second driving member 156 drives the thrust plate 157 to move in the direction of the discharge baffle 154, until the strip material 3 is pushed to leave the conveying mechanism 11 and fall into the material storage frame along the discharge inclined guide plate 12;

[0057] S7, repeating steps S2-S6 until the quantity of the strips 3 in the material storage frame reaches a preset quantity; when the quantity of the strips 3 in the material storage frame reaches a preset quantity, proceeding to step S8;

[0058] S8, the weighing structure 2 descends to the weighing position, and the strip material 3 in the material storage frame is weighed. After the weighing is completed, the material storage frame is taken out from the weighing structure 2, and the automatic unloading and weighing of the strip material 3 is completed.

[0059] When the clamping discharging trolley 15 is at the discharging position, the centers of the discharging baffle 154, the discharging inclined guide plate 12, the storage frame and the weighing structure 2 are located on the same straight line along the Y direction. In this way, the discharging position of the strip material 3 can be accurately ensured to be at the center of the weighing structure 2.

[0060] The present invention provides an automatic unloading weighing device and a control method suitable for strip materials of different lengths, which utilizes a conveying and discharging structure 1 and a weighing structure 2 to cooperate with each other, wherein the weighing structure 2 is located below a discharging inclined guide plate 12 of the conveying and discharging structure 1, and the discharging inclined guide plate 12 is opposite to the middle position of the weighing structure 2; the conveying and discharging structure 1 is also provided with a conveying mechanism 11 and a clamping and discharging trolley 15, wherein the clamping and discharging trolley 15 has the functions of detection and discharging, and when the strip material 3 is conveyed to the detection baffle mechanism 16 of the clamping and discharging trolley 15 by the conveying mechanism 11, the conveying mechanism 11 stops moving; when short material is conveyed, the discharging baffle 154 is opened, and the short material slides from the discharging inclined guide plate 12 to the middle position of the weighing structure 2; when long material is conveyed, The detection baffle mechanism 16 is opened, and the clamping discharge trolley 15 is driven to the middle position of the long material by the trolley driving assembly 14 under the control of the control center 17, and then the clamping discharge trolley 15 forms a clamping part through the thrust plate 157 and the discharge baffle 154, and the middle position of the long material is moved to the discharge inclined guide plate 12 through the clamping part, and then the discharge baffle 154 is opened, and the thrust plate 157 pushes the long material to the middle position of the weighing structure 2. This arrangement ensures that both short and long materials can fall into the middle position of the weighing structure 2, and the weighing structure 2 is provided with a guide assembly, which will not affect the accuracy of weighing while ensuring the stability of the lifting process of the weighing structure 2, thereby ensuring accurate weighing. The present invention has the characteristics of high weighing precision and high degree of automation.

[0061] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic unloading and weighing device suitable for strips of different lengths, comprising a control center (17), a conveying and discharging structure (1) and a weighing structure (2), wherein the conveying and discharging structure (1) and the weighing structure (2) are respectively connected to the control center (17) by control; the conveying and discharging structure (1) comprises a conveying mechanism (11) arranged along the X direction, a discharging inclined guide plate (12) is arranged on one side of the conveying mechanism (11), the weighing structure (2) is located below the discharging inclined guide plate (12), and the discharging inclined guide plate (12) is opposite to the middle position of the weighing structure (2); the characteristics are: The conveying and discharging structure (1) also includes a clamping and discharging trolley (15) capable of reciprocating along the X direction, the clamping and discharging trolley (15) including a main body, a discharging baffle (154) is movably provided at one end of the main body along the Y direction close to the discharging inclined guide plate (12), the discharging baffle (154) is connected to the first driving member (151), and under the action of the first driving member (151), the discharging baffle (154) can be in an open position or a closed position, a second driving member (156) is provided in the main body along the Y direction, and a thrust plate (157) is provided at the output end of the second driving member (156), and the thrust plate (157) is located on the inner side of the discharging baffle (154); a detection baffle mechanism (154) is movably provided at one side of the main body along the X direction away from the feeding end of the strip material (3) 16), the detection baffle mechanism (16) is connected to the third driving member (164), and under the action of the third driving member (164), the detection baffle mechanism (16) can be in an open position or a closed position; when the discharge baffle (154) is in a closed position, a material passage for the strip material (3) to pass through is formed between the thrust plate (157) and the discharge baffle (154), and by changing the position of the thrust plate (157), the thrust plate (157) and the discharge baffle (154) can clamp and convey the strip material (3); when the discharge baffle (154) is in an open position, the thrust plate (157) can push the strip material (3) to leave the conveying mechanism (11) and fall into the weighing structure (2) along the discharge inclined guide plate (12).

2. The automatic unloading weighing device for strips of different lengths according to claim 1 is characterized in that: The side of the discharge baffle (154) close to the main body is hinged to the main body through a third rotating shaft (155), and the side away from the main body is hinged to the first driving member (151) through a second rotating shaft (153). The first driving member (151) is retracted along the Y direction and drives the discharge baffle (154) to rotate between an open position and a closed position with the third rotating shaft (155) as the axis.

3. The automatic unloading weighing device for strips (3) of different lengths according to claim 1 is characterized in that: The detection baffle mechanism (16) comprises a detection baffle (161) and a detector (163), wherein the detector (163) is disposed at a position close to the bottom end of the detection baffle (161).

4. The automatic unloading weighing device for strips of different lengths according to claim 3 is characterized in that: The third driving member (164) is provided with a connecting shaft (165) at the output end, and a connecting buckle (162) is provided at the top end of the detection baffle (161), and the connecting shaft (165) is inserted into the connecting buckle (162). The third driving member (164) is extended and retracted along the X direction and drives the detection baffle (161) to rotate between an open position and a closed position with the connecting shaft (165) as the axis.

5. The automatic unloading weighing device suitable for strips of different lengths according to claim 1 is characterized in that: A trolley drive assembly (14) is provided on the other side of the conveying mechanism (11), and the trolley drive assembly (14) is drivingly connected to the main body.

6. The automatic unloading weighing device for strips of different lengths according to claim 1 is characterized in that: The weighing structure (2) comprises a receiving seat, a lifting mechanism (22), a fixing frame (25) and a weighing scale (24); the fixing frame (25) is mounted above the outer side of the weighing scale (24); the lifting mechanism (22) is fixed in the fixing frame (25); the receiving seat is fixed at the output end of the lifting mechanism (22); the receiving seat is movably arranged in the middle of the fixing frame (25); and the receiving seat can contact or separate from the weighing scale (24) under the drive of the lifting mechanism (22).

7. The automatic unloading weighing device for strips of different lengths according to claim 6 is characterized in that: The weighing structure (2) also includes a guide assembly, which includes a limit rod (27) fixedly arranged on both sides of the receiving seat and a limit wheel (28) matched with the limit rod (27). The limit wheel (28) is fixedly arranged on both sides of the fixing frame (25). The limit rod (27) includes a straight section (271) and an inclined portion (272) arranged at the upper end of the straight section (271). When the receiving seat is lifted or lowered, the limit wheel (28) contacts the straight section (271) and the two slide relative to each other. When the receiving seat is lowered to the lowest position, the bottom of the receiving seat contacts the weighing scale (24) and the limit wheel (28) and the inclined portion (272) are separated from each other.

8. The automatic unloading weighing device for strips of different lengths according to claim 7 is characterized in that: The straight line segment (271) is provided with a sliding groove at the position where it contacts the limiting wheel (28), and the limiting wheel (28) slides in a limited direction in the sliding groove.

9. An automatic unloading weighing control method applicable to strips of different lengths, the method being carried out by using the automatic unloading weighing device applicable to strips of different lengths as claimed in any one of claims 1 to 8, characterized in that: The method comprises the following steps: S1, placing an empty material storage frame on the weighing structure (2), and the weighing structure (2) rises to a material receiving position; S2, the conveying and discharging structure (1) is restored to the initial state, at which time the clamping and discharging trolley (15) is located at the discharging position, the discharging baffle (154) and the detection baffle mechanism (16) are both in the closed position, and a material passage for the strip material (3) to pass through is formed between the thrust plate (157) and the discharging baffle (154); S3, the control center (17) receives the length information of the strip material (3) to be transported, and the transport mechanism (11) transports the strip material (3) along the X direction until the end of the strip material (3) contacts the detection baffle mechanism (16), and the detection baffle mechanism (16) feeds back a signal to the control center (17), and the control center (17) controls the transport mechanism (11) to stop moving; when the length of the strip material (3) is greater than a certain set value, the process proceeds to step S4; when the length of the strip material (3) is less than a certain set value, the process proceeds to step S6; S4, the control center (17) calculates the center position of the strip material (3) according to the length of the strip material (3), the third driving member (164) drives the detection baffle mechanism (16) to move to the open position, and the control center (17) controls the clamping and discharging trolley (15) to move along the X direction to the center position of the strip material (3) and stop; S5, the second driving member (156) drives the thrust plate (157) to move in the direction of the discharge baffle (154) until the thrust plate (157) and the discharge baffle (154) clamp the strip material (3), and the control center (17) controls the clamping discharge trolley (15) to clamp the strip material (3) and move in the opposite direction along the X direction to the discharge position and stop; S6, the first driving member (151) drives the discharge baffle (154) to move to the open position, and the second driving member (156) drives the thrust plate (157) to move in the direction of the discharge baffle (154) until the strip material (3) is pushed away from the conveying mechanism (11) and falls into the material storage frame along the discharge inclined guide plate (12); S7, repeating steps S2-S6 until the quantity of the strips (3) in the material storage frame reaches a preset quantity; when the quantity of the strips (3) in the material storage frame reaches a preset quantity, proceeding to step S8; S8, the weighing structure (2) descends to the weighing position, and the strip material (3) in the material storage frame is weighed. After the weighing is completed, the material storage frame is removed from the weighing structure (2), and the automatic unloading and weighing of the strip material (3) is completed.

10. The automatic unloading weighing control method applicable to strips of different lengths according to claim 9, characterized in that: When the clamping discharging trolley (15) is in the discharging position, the centers of the discharging baffle plate (154), the discharging inclined guide plate (12), the storage frame and the weighing structure (2) are located on the same straight line along the Y direction.

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