An automatic feeding and weighing device and control method suitable for strips of different lengths

Abstract

This invention discloses an automatic feeding and weighing device and control method suitable for strips of different lengths, including a control center, a conveying and discharging structure, and a weighing structure. The conveying and discharging structure and the weighing structure are respectively controlled and connected to the control center. A discharge inclined guide plate is provided on one side of the conveying mechanism of the conveying and discharging structure, and the weighing structure is located below the discharge inclined guide plate. When conveying short materials, the short materials slide down from the discharge inclined guide plate to the middle position of the weighing platform. When conveying long materials, the detection baffle opens and the conveying mechanism stops feeding. Under the control of the control center, the clamping and discharging trolley moves to the middle position of the long material via the trolley drive assembly. The clamping part moves the middle position of the long material to the discharge inclined guide plate, and then the discharge baffle opens, ensuring that both short and long materials fall into the middle position of the material frame, ensuring accurate weighing. This invention features high weighing accuracy and high automation.

Description

Technical Field

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

[0002] Long, strip-shaped workpieces such as steel pipes and iron bars often require forming, cutting, blanking, and weighing during production. Current technology typically involves manually transporting the workpieces to a weighing mechanism after cutting, resulting in low production efficiency and high labor costs. Therefore, to improve automation, a weighing mechanism is installed at the blanking point of the workpieces, allowing for direct weighing immediately after blanking.

[0003] However, in actual production, the length of strips is often inconsistent, and the existing automatic feeding and weighing structure cannot adjust the feeding position of the strips according to their length. As a result, it cannot be guaranteed that each strip will fall accurately in the middle of the weighing platform, which can easily lead to errors in the weighing results and have an adverse impact on the subsequent production process.

[0004] Therefore, in an environment where the requirements for weighing accuracy are becoming increasingly stringent, how to ensure that strips of varying lengths fall accurately into the center of the weighing platform each time to guarantee weighing accuracy is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic feeding and weighing device and control method suitable for strips of different lengths, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An automatic feeding and weighing device suitable for strips of different lengths is provided, including a control center, a conveying and discharging structure, and a weighing structure. The conveying and discharging structure and the weighing structure are respectively controlled and connected to the control center. The conveying and discharging structure includes a conveying mechanism arranged along the X direction, with a discharge inclined guide plate arranged on one side of the conveying mechanism. The weighing structure is located below the discharge inclined guide plate, and the discharge inclined guide plate is positioned opposite the middle of the weighing structure. The conveying and discharging structure also includes a clamping and discharging trolley capable of reciprocating along the X direction. The clamping and discharging trolley includes a body, and a discharge baffle is movably arranged at one end of the body along the Y direction near the discharge inclined guide plate. The discharge baffle is connected to a first driving member, and under the action of the first driving member, the discharge baffle can be in an open or closed position. A second driving member is arranged along the Y direction in the body, and a thrust plate is provided at the output end of the second driving member. The thrust plate is located inside the discharge baffle. A detection baffle mechanism is movably arranged on the side of the body away from the feed end of the strip along the X direction. The detection baffle mechanism is connected to a third driving member, and the detection baffle mechanism can be in an open or closed position under the action of the third driving member. When the discharge baffle is in the closed position, a material passage for the strip is formed between the thrust plate and the discharge baffle. By changing the position of the thrust plate, the thrust plate and the discharge baffle can clamp and convey the strip. When the discharge baffle is in the open position, the thrust plate can push the strip away from the conveying mechanism and fall into the weighing structure along the discharge inclined guide plate.

[0008] Furthermore, the side of the discharge baffle closest to the main body is hinged to the main body via a third rotating shaft, and the side furthest from the main body is hinged to the first driving member via a second rotating shaft. The first driving member extends and retracts along the Y direction and drives the discharge baffle to rotate between the open and closed positions with the third rotating shaft as the axis.

[0009] Furthermore, the detection baffle mechanism includes a detection baffle and a detector, with the detector passing through the detection baffle near its bottom end.

[0010] Furthermore, the third driving member has a connecting shaft at the output end, and the top of the detection baffle has a connecting buckle. The connecting shaft passes through the connecting buckle. The third driving member extends and retracts along the X direction and drives the detection baffle to rotate between the open and closed positions 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 drivenly connected to the main body.

[0012] Furthermore, the weighing structure includes a support seat, a lifting mechanism, a fixed frame, and a weighing scale. The fixed frame is mounted on the outside and above the weighing scale. The lifting mechanism is fixed in the fixed frame. The support seat is fixed to the output end of the lifting mechanism, and the support seat is movably disposed in the middle of the fixed frame. The support seat can contact or separate from the weighing scale under the action of the lifting mechanism.

[0013] Furthermore, the weighing structure also includes a guide assembly, which includes a limiting rod fixedly disposed on both sides of the receiving seat and a limiting wheel cooperating with the limiting rod. The limiting wheel is fixedly disposed on both sides of the fixed frame. The limiting rod includes a straight section and an inclined portion disposed at the upper end of the straight section. When the receiving seat moves up and down, the limiting wheel contacts the straight section and the two slide relative to each other. When the receiving seat descends to the lowest position, the bottom of the receiving seat contacts the weighing scale and the limiting wheel disengages from the inclined portion.

[0014] Furthermore, the straight segment is provided with a groove at the contact point with the limiting wheel, and the limiting wheel slides in a limited direction within the groove.

[0015] An automatic feeding and weighing control method suitable for strips of different lengths, the method employing the aforementioned automatic feeding and weighing device suitable for strips of different lengths, the method comprising the following steps:

[0016] S1. Place an empty storage box on the weighing structure, and raise the weighing structure to the receiving position;

[0017] S2. The conveying and discharging structure is restored to its initial state. At this 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 is formed between the thrust plate and the discharging baffle for the strip material to pass through.

[0018] S3. The control center receives the length information of the strip to be conveyed. The conveying mechanism conveys the strip along the X direction until the end of the strip contacts the detection baffle mechanism. The detection baffle mechanism feeds back a signal to the control center, and the control center controls the conveying mechanism to stop moving. When the length of the strip is greater than a certain set value, proceed to step S4. When the length of the strip is less than a certain set value, proceed to step S6.

[0019] S4. The control center calculates the center position of the strip based on its length, the third driving component drives the detection baffle mechanism 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 and stop.

[0020] S5. The second driving member drives the thrust plate to move towards the discharge baffle until the thrust plate and the discharge baffle clamp the strip. The control center controls the clamping and discharge trolley to clamp the strip together 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 the open position, and the second driving member drives the push 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 storage box along the discharge inclined guide plate.

[0022] S7. Repeat steps S2-S6 until the number of strips in the storage box reaches the preset number; when the number of strips in the storage box reaches the preset number, proceed to step S8;

[0023] S8. The weighing structure descends to the weighing position and weighs the strip material in the storage box. After weighing, the storage box is removed from the weighing structure, completing one automatic feeding and weighing of the strip material.

[0024] Furthermore, when the clamping and 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 beneficial effects of the present invention are:

[0026] This invention provides an automatic feeding and weighing device and control method suitable for strips of different lengths. It utilizes a conveying and discharging structure and a weighing structure working together. The weighing structure is located below the discharging inclined guide plate of the conveying and discharging structure, and the discharging inclined guide plate is positioned opposite the middle of the weighing structure. The conveying and discharging structure also includes a conveying mechanism and a clamping discharging trolley. The clamping discharging trolley has detection and discharging functions. When the strip is conveyed by the conveying mechanism to the detection baffle mechanism of the clamping discharging trolley, the conveying mechanism stops moving. When conveying short strips, the discharging baffle opens, and the short strip slides from the discharging inclined guide plate to the middle position of the weighing structure. When conveying long strips... The detection baffle mechanism opens, and the clamping and discharging trolley, under the control of the control center, moves to the middle position of the long material via the trolley drive assembly. Then, the clamping and discharging trolley forms a clamping part through the push plate and the discharging baffle. The clamping part moves the middle position of the long material to the discharging inclined guide plate. Then, the discharging baffle opens, and the push plate pushes the long material down to the middle position of the weighing structure. This setting ensures that both short and long materials can fall to the middle position of the weighing structure. The weighing structure is equipped with a guiding component, which ensures the stability of the weighing structure during the lifting process without affecting the weighing accuracy. This invention features high weighing accuracy and high automation. Attached Figure Description

[0027] Figure 1 This is an overall structural diagram of an automatic feeding and weighing device for strips of different lengths according to the present invention;

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

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

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

[0031] Figure 5 This is a side view of the discharge baffle of the present invention clamping the discharge trolley when it is closed;

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

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

[0034] Figure 8 This is a structural diagram of the weighing structure of the present invention in its descent state;

[0035] Figure 9 This is a side view of the weighing structure of the present invention;

[0036] Figure 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 diagram are labeled as follows: 1. Conveying and discharging structure; 11. Conveying mechanism; 12. Discharging inclined guide plate; 13. Support frame; 14. Trolley drive assembly; 15. Clamping discharging trolley; 151. First drive component; 152. First rotating shaft; 153. Second rotating shaft; 154. Discharging baffle; 155. Third rotating shaft; 156. Second drive component; 157. Thrust plate; 16. Detection baffle mechanism; 161. Detection baffle; 162. Connecting... 1. Connector; 163. Detector; 164. Third drive component; 165. Connecting shaft; 17. Control center; 2. Weighing structure; 21. Loading platform; 22. Lifting mechanism; 221. Drive assembly; 222. Transmission assembly; 223. Lifting rod; 224. Sleeve rod; 23. Base; 24. Weighing scale; 25. Fixing frame; 26. Support column; 27. Limiting rod; 271. Straight section; 272. Inclined part; 28. Limiting wheel; 3. Strip material. Detailed Implementation

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

[0039] It should be noted that all directional indications in the embodiments of this application, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0040] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit this application. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0041] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0042] Please see Figures 1-6 This invention provides an automatic feeding 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 in advance. Based on the length information, the control center 17 determines whether the strip 3 being conveyed is long or short. The conveying and discharging structure 1 makes different transportation processes according to whether the strip 3 is short or long. When the strip 3 is short, it is directly pushed out to the weighing structure 2 at the designated position. When the strip 3 is long, a clamping and transportation process is added. The control center 17 can control the conveying and discharging structure 1 to clamp the long strip and move it to the designated position before pushing it out to the weighing structure 2, ensuring that whether the strip is short or long, it will fall in the middle position of the weighing structure 2, ensuring accurate weighing. An embodiment is provided below:

[0043] The conveying and discharging structure 1 and the weighing structure 2 are respectively controlled and connected to the control center 17. The conveying and discharging structure 1 includes a conveying mechanism 11 arranged along the X direction. A discharge inclined guide plate 12 is provided on one side of the conveying mechanism 11. The weighing structure 2 is located below the discharge inclined guide plate 12, and the discharge 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 capable of reciprocating along the X direction. The clamping and discharging trolley 15 includes a body. A discharge baffle 154 is movably arranged at one end of the body along the Y direction near the discharge inclined guide plate 12. The discharge baffle 154 is connected to a first driving member 151, and under the action of the first driving member 151, the discharge baffle 154 can be in an open or closed position. A second driving member 156 is arranged in the body along the Y direction, and the output of the second driving member 156 is... A thrust plate 157 is provided at one end, and the thrust plate 157 is located inside the discharge baffle 154. A detection baffle mechanism 16 is movably provided on the side of the body away from the feed end of the strip 3 along the X direction. The detection baffle mechanism 16 is connected to the third driving member 164, and the detection baffle mechanism 16 can be in an open or closed position under the action of the third driving member 164. When the discharge baffle 154 is in the closed position, a material passage for the strip 3 is formed between the thrust plate 157 and the discharge baffle 154. By changing the position of the thrust plate 157, the thrust plate 157 and the discharge baffle 154 can clamp and convey the strip 3. When the discharge baffle 154 is in the open position, the thrust plate 157 can push the strip 3 away from 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 clamping and discharging trolley 15 body via the first rotating shaft 152. The side of the discharging baffle 154 close to the body is hinged to the body via the third rotating shaft 155, and the side away from the body is hinged to the first driving member (151) via the second rotating shaft 153. The first driving member 151 extends and retracts along the Y direction and drives the discharging baffle 154 to rotate between the open and closed positions with the third rotating shaft 155 as the axis. When the discharging baffle 154 is in the closed position, the first driving member 151 retracts, which drives the discharging baffle 154 to rotate upward. Similarly, when the discharging baffle 154 is in the open position, the first driving member 151 extends, which drives the discharging baffle 154 to rotate downward. The first driving member 151 can precisely control the rotation position of the discharging baffle 154 and provide support force.

[0045] For details, please refer to Figure 6The third driving member 164 has a connecting shaft 165 at its end, and the top of the detection baffle 161 has a connecting buckle 162. The connecting shaft 165 passes through the connecting buckle 162. The third driving member 164 extends and retracts in the X direction, driving the detection baffle 161 to rotate between the open and closed positions about the connecting shaft 165. The detection baffle mechanism 16 includes a detection baffle 161 and a detector 163. The detector 163 passes through the plate surface of the detection baffle 161 near the bottom. Because the detector 163 is in a lower position, it can still detect even if the diameter of the strip 3 is small, thus having a wide range of applications.

[0046] In this embodiment, the lower end of the conveying mechanism 11 is provided with a support frame 13, so that the discharge tilting guide plate 12 is set above the ground. The other side of the conveying mechanism 11 is provided with a trolley drive assembly 14. The trolley drive assembly 14 is drivenly connected to the body of the clamping discharge trolley 15. When transporting long materials, the trolley drive assembly 14 drives the body to move to the designated position and return.

[0047] In this embodiment, please refer to Figures 7 to 9 The weighing structure 2 includes a support base, a lifting mechanism 22, a fixed frame 25, and a weighing scale 24. The fixed frame 25 is mounted on the outer side above the weighing scale 24. The lifting mechanism 22 is fixed in the fixed frame 25. The support base is fixed to the output end of the lifting mechanism 22, and the support base is movably disposed in the middle of the fixed frame 25. The support base can contact or separate from the weighing scale 24 under the action of the lifting mechanism 22. The support base includes a load-bearing platform 21, support columns 26, and a base 23. The load-bearing platform 21 is provided with a strip-shaped support surface. There are multiple support columns 26, which are fixed to the lower side of the load-bearing platform 21. The base 23 is fixed to the lower end of the support columns 26 and forms a bottom surface that can fully contact the weighing scale 24. The lifting mechanism 22 includes a drive assembly 221, a transmission assembly 222, and multiple lifting rods 223. The drive assembly 221 is fixed inside the fixed frame 25. The output end of the drive assembly 221 drives the multiple lifting rods 223 to move up and down synchronously through the transmission assembly 222. The top of the lifting rods 223 is connected to the bottom of the support platform 21. A sleeve rod 224 is also sleeved around the lifting rods 223. The lifting rods 223 and the sleeve rod 224 are threaded together. When the lifting rods 223 are retracted into the sleeve rod 224, the sleeve rod 224 plays a protective role.

[0048] In this embodiment, please refer to Figure 10The weighing structure 2 also includes a guide assembly, which includes a limiting rod (27) fixedly disposed on both sides of the receiving seat and a limiting wheel (28) cooperating with the limiting rod (27). The limiting wheel (28) is fixedly disposed on both sides of the fixed frame (25). The limiting rod (27) includes a straight section 271 and an inclined portion 272 disposed on the upper end of the straight section 271. When the receiving seat moves up and down, the limiting wheel (28) contacts the straight section 271 and the two slide 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 limiting wheel (28) disengages from the inclined portion 272. The straight section 271 is provided with a groove at the contact point with the limiting wheel (28), and the limiting wheel (28) slides in a limited direction within the groove.

[0049] Specifically, during material receiving, the receiving seat rises to the lower end of the discharge inclined guide plate 12 via the lifting mechanism 22. After receiving the material, the receiving seat descends via the lifting mechanism 22 until the base 23 is fully in contact with the weighing scale 24. During the lifting process, the fixed frame 25 provides protection. The weighing structure 2 also includes a guide assembly, which includes a limiting rod 27 fixedly disposed on both sides of the receiving seat and a limiting wheel 28 cooperating with the limiting rod 27. The limiting wheel 28 is fixedly disposed on both sides of the fixed frame 25. The limiting rod 27 includes a straight section 271 and an inclined portion 272 disposed on the upper end of the straight section 271. When the receiving seat moves up and down, the limiting wheel 28 contacts the straight section 271 and the two slide 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 limiting wheel 28 disengages from the inclined portion 272. In this way, the weighing process is not interfered with by the guide assembly, making the weighing more accurate.

[0050] According to the automatic feeding and weighing device for strips of different lengths provided by the present invention, an automatic feeding and weighing control method for strips of different lengths is also provided. The method operates using the automatic feeding and weighing device for strips of different lengths provided by the present invention, and includes the following steps:

[0051] S1. Place an empty storage box on the weighing structure 2, and raise the weighing structure 2 to the receiving position. The supporting platform 21 is located at the lower end of the discharge inclined guide plate 12.

[0052] S2. The conveying and discharging structure 1 is restored to its initial state. At this 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 is formed between the thrust plate 157 and the discharging baffle 154 for the strip material 3 to pass through.

[0053] S3. The control center 17 receives the length information of the strip 3 to be conveyed. The conveying mechanism 11 conveys the strip 3 along the X direction until the end of the strip 3 contacts the detection baffle mechanism 16. The detection baffle mechanism 16 feeds back a signal to the control center 17, and the control center 17 controls the conveying mechanism 11 to stop moving. When the length of the strip 3 is greater than a certain set value, proceed to step S4. When the length of the strip 3 is less than a certain set value, proceed to step S6.

[0054] S4. The control center 17 calculates the center position of the strip 3 based on the length of the strip 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 3 and stop.

[0055] S5. The second driving member 156 drives the thrust plate 157 to move towards the discharge baffle 154 until the thrust plate 157 and the discharge baffle 154 clamp the strip 3. The control center 17 controls the clamping discharge trolley 15 to clamp the strip 3 together 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 push plate 157 to move in the direction of the discharge baffle 154 until the strip 3 is pushed away from the conveying mechanism 11 and falls into the storage box along the discharge inclined guide plate 12.

[0057] S7. Repeat steps S2-S6 until the quantity of strip material 3 in the storage box reaches the preset quantity; when the quantity of strip material 3 in the storage box reaches the preset quantity, proceed to step S8;

[0058] S8. The weighing structure 2 descends to the weighing position and weighs the strip 3 in the storage box. After weighing, the storage box is removed from the weighing structure 2, completing one automatic feeding and weighing of the strip 3.

[0059] When the clamping and discharging trolley 15 is in 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. This arrangement can accurately ensure that the discharging position of the strip material 3 is at the center of the weighing structure 2.

[0060] This invention provides an automatic feeding and weighing device and control method suitable for strips of different lengths. It utilizes a conveying and discharging structure 1 and a weighing structure 2 working together. The weighing structure 2 is located below the discharge inclined guide plate 12 of the conveying and discharging structure 1, and the discharge inclined guide plate 12 is positioned opposite the middle of the weighing structure 2. The conveying and discharging structure 1 also includes a conveying mechanism 11 and a clamping and discharging trolley 15. The clamping and discharging trolley 15 has detection and discharging functions. When the strip 3 is conveyed by the conveying mechanism 11 to the detection baffle mechanism 16 of the clamping and discharging trolley 15, the conveying mechanism 11 stops moving. When short strips are being conveyed, the discharge baffle 154 opens, and the short strip slides from the discharge inclined guide plate 12 to the middle position of the weighing structure 2. When long strips are being conveyed... The detection baffle mechanism 16 opens, and the clamping and discharging trolley 15, under the control of the control center 17, is driven by the trolley drive assembly 14 to the middle position of the long material. Then, the clamping and discharging trolley 15 forms a clamping part through the push plate 157 and the discharging baffle 154. The clamping part moves the middle position of the long material to the discharging inclined guide plate 12. Then, the discharging baffle 154 opens, and the push plate 157 pushes the long material down to the middle position of the weighing structure 2. This setting ensures that whether it is a short or long material, it can fall to the middle position of the weighing structure 2. The weighing structure 2 is equipped with a guide assembly, which ensures the stability of the lifting process of the weighing structure 2 without affecting the weighing accuracy. This invention has the characteristics of high weighing accuracy and high automation.

[0061] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic feeding 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 controlled and connected to the control center (17); the conveying and discharging structure (1) includes a conveying mechanism (11) arranged along the X direction, a discharge inclined guide plate (12) is provided on one side of the conveying mechanism (11), and the weighing structure (2) is located below the discharge inclined guide plate (12), and the discharge inclined guide plate (12) is opposite to the middle position of the weighing structure (2); characterized in that: The conveying and discharging structure (1) further includes a clamping and discharging trolley (15) capable of reciprocating along the X direction. The clamping and discharging trolley (15) includes a body. A discharging baffle (154) is movably provided at one end of the body along the Y direction near the discharging inclined guide plate (12). The discharging baffle (154) is connected to a first driving member (151), and under the action of the first driving member (151), the discharging baffle (154) can be in an open or closed position. A second driving member (156) is provided in the body along the Y direction, and a thrust plate (157) is provided at the output end of the second driving member (156). The thrust plate (157) is located inside the discharging baffle (154). A detection baffle mechanism is movably provided on the side of the body away from the feed end of the strip material (3) along the X direction. 16), the detection baffle mechanism (16) is connected to the third driving member (164), and the detection baffle mechanism (16) can be in the open position or the closed position under the action of the third driving member (164); when the discharge baffle (154) is in the closed position, a material passage for the strip material (3) is formed between the thrust plate (157) and the discharge baffle (154), and the push plate (157) and the discharge baffle (154) can clamp and convey the strip material (3) by changing the position of the push plate (157); when the discharge baffle (154) is in the open position, the push plate (157) can push the strip material (3) away from the conveying mechanism (11) and fall into the weighing structure (2) along the discharge inclined guide plate (12).

2. The automatic feeding and weighing device for strips of different lengths according to claim 1, characterized in that: The discharge baffle (154) is hinged to the main body via a third pivot (155) on the side closer to the main body, and to the first drive member (151) via a second pivot (153) on the side farther from the main body. The first drive member (151) extends and retracts along the Y direction and drives the discharge baffle (154) to rotate between the open and closed positions with the third pivot (155) as the axis.

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

4. An automatic feeding and weighing device suitable for strips of different lengths according to claim 3, characterized in that: The third driving member (164) has a connecting shaft (165) at its output end, and the top of the detection baffle (161) is provided with a connecting buckle (162). The connecting shaft (165) passes through the connecting buckle (162). The third driving member (164) extends and retracts 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.

5. An automatic feeding and weighing device suitable for strips of different lengths according to claim 1, 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 driven and connected to the main body.

6. An automatic feeding and weighing device suitable for strips of different lengths according to claim 1, characterized in that: The weighing structure (2) includes a support seat, a lifting mechanism (22), a fixed frame (25), and a weighing scale (24). The fixed frame (25) is mounted on the outside of the weighing scale (24). The lifting mechanism (22) is fixed in the fixed frame (25). The support seat is fixed at the output end of the lifting mechanism (22), and the support seat is movably disposed in the middle of the fixed frame (25). The support seat can contact or separate from the weighing scale (24) under the drive of the lifting mechanism (22).

7. An automatic feeding and weighing device suitable for strips of different lengths according to claim 6, characterized in that: The weighing structure (2) also includes a guide assembly, which includes a limiting rod (27) fixedly disposed on both sides of the receiving seat and a limiting wheel (28) cooperating with the limiting rod (27). The limiting wheel (28) is fixedly disposed on both sides of the fixed frame (25). The limiting rod (27) includes a straight section (271) and an inclined part (272) disposed at the upper end of the straight section (271). When the receiving seat moves up and down, the limiting wheel (28) contacts the straight section (271) and the two slide 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 limiting wheel (28) disengages from the inclined part (272).

8. An automatic feeding and weighing device suitable for strips of different lengths according to claim 7, characterized in that: The straight segment (271) has a groove at the contact point with the limiting wheel (28), and the limiting wheel (28) slides in a limited direction within the groove.

9. An automatic feeding and weighing control method for strips of different lengths, wherein the method employs the automatic feeding and weighing device for strips of different lengths as described in any one of claims 1-8, characterized in that: The method includes the following steps: S1. Place an empty storage box on the weighing structure (2), and the weighing structure (2) rises to the receiving position; S2. The conveying and discharging structure (1) is restored to its initial state. At this 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) is formed between the thrust plate (157) and the discharging baffle (154). S3. The control center (17) receives the length information of the strip (3) to be conveyed. The conveying mechanism (11) conveys the strip (3) along the X direction until the end of the strip (3) contacts the detection baffle mechanism (16). The detection baffle mechanism (16) feeds back the signal to the control center (17). The control center (17) controls the conveying mechanism (11) to stop moving. When the length of the strip (3) is greater than a certain set value, proceed to step S4. When the length of the strip (3) is less than a certain set value, proceed to step S6. S4. The control center (17) calculates the center position of the strip (3) based on the length of the strip (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 (3) and stop. S5. The second driving member (156) drives the thrust plate (157) to move towards the discharge baffle (154) until the thrust plate (157) and the discharge baffle (154) clamp the strip (3). The control center (17) controls the clamping discharge trolley (15) to clamp the strip (3) together 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 push plate (157) to move in the direction of the discharge baffle (154) until the strip (3) is pushed away from the conveying mechanism (11) and falls into the storage box along the discharge inclined guide plate (12); S7. Repeat steps S2-S6 until the quantity of the strip (3) in the storage box reaches the preset quantity; when the quantity of the strip (3) in the storage box reaches the preset quantity, proceed to step S8; S8. The weighing structure (2) descends to the weighing position and weighs the strip (3) in the storage box. After weighing, the storage box is removed from the weighing structure (2) to complete one automatic feeding and weighing of the strip (3).

10. The automatic feeding and weighing control method for strips of different lengths according to claim 9, characterized in that: When the clamping and discharging trolley (15) is in 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.

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