Wire wound screen tube forming device and forming method

Abstract

The present invention discloses a wire-wound screen tube forming device and a forming method, belonging to the technical field of screen tube forming, comprising a wire-wound machine and a sleeve mold installed on the wire-wound machine, wherein a fixing frame is fixedly installed at a position close to the upper side of the sleeve mold of the wire-wound machine, a protruding rod is installed at the lower side of the fixing frame, a contraction cavity is opened on the lower outer wall of the protruding rod, a detection component is slidably installed inside the contraction cavity, the detection component comprises a moving block slidably installed inside the contraction cavity, the detection component also comprises two pressure sensors installed inside the contraction cavity, and a pressure spring is fixedly installed at one end of the pressure sensor away from the moving block. The present invention can detect the gap between two adjacent steel wires through the detection component, so as to avoid the gap between the two adjacent steel wires being too large or too small, causing the screen tube to fail to meet the specifications, making it difficult to achieve an ideal filtering effect when in use, affecting the quality of the screen tube, and effectively ensuring the quality of the screen tube when manufacturing the screen tube.

Description

Technical Field

[0001] The present invention relates to the technical field of screen tube molding, and more particularly to a wire-wound screen tube molding device and a molding method. Background Art

[0002] Wire Wrap Screen Tube Forming is a manufacturing process for producing filters and screens, usually used for liquid and gas filtration in the petroleum, chemical, food and other industries. Wire Wrap Screen Tube is formed by winding metal wire (usually stainless steel wire) into a tube to form a structure with a certain porosity. This structure not only enhances the mechanical strength of the screen, but also provides good filtering performance.

[0003] Among them, when making the screen tube, it is necessary to use wire winding and steel wire winding to form the screen tube. However, in the process of winding the steel wire, as the casing mold continues to advance, when the steel wire is wound on the outside of the casing mold, due to the toughness of the steel wire itself, the steel wire is easy to deviate from the sleeve mold. When the steel wire deviates, the gap of the screen tube will be too large or too small, so that the quality of the screen tube will not meet the standards and cannot play an effective filtering effect in subsequent use. Therefore, the present invention provides a wire-wound screen tube forming device and a forming method. Summary of the invention

[0004] To solve the above problems, the present invention adopts the following technical solutions.

[0005] A wire-wound screen tube forming device comprises a wire-wound machine and a sleeve mold installed on the wire-wound machine, wherein a fixing frame is fixedly installed at a position close to the upper side of the sleeve mold on the wire-wound machine, a protruding rod is installed at the lower side of the fixing frame, a contraction cavity is opened on the lower outer wall of the protruding rod, and a detection component is slidably installed inside the contraction cavity;

[0006] The detection component includes a moving block slidably installed inside the contraction chamber, and the detection component also includes two pressure sensors installed inside the contraction chamber. The two pressure sensors are respectively installed on both sides of the protruding part of the moving block, and a pressure spring is fixedly installed at one end of the pressure sensor away from the moving block, and the other end of the pressure spring is fixedly connected to the inner wall of the contraction chamber.

[0007] Furthermore, a wire winding machine and a sleeve die installed on the wire winding machine are characterized in that: a fixing frame is fixedly installed at a position of the wire winding machine close to the upper side of the sleeve die, a protruding rod is installed at the lower side of the fixing frame, a contraction cavity is opened on the lower outer wall of the protruding rod, and a detection component is slidably installed inside the contraction cavity;

[0008] The detection component includes a moving block slidably installed inside the contraction chamber, and the detection component also includes two pressure sensors installed inside the contraction chamber. The two pressure sensors are respectively installed on both sides of the protruding part of the moving block, and a pressure spring is fixedly installed at one end of the pressure sensor away from the moving block, and the other end of the pressure spring is fixedly connected to the inner wall of the contraction chamber.

[0009] Furthermore, a piston groove is opened at the lower end of the fixing frame, the upper side of the protruding rod is located inside the piston groove, and the upper side of the protruding rod squeezes the air inside the piston groove, and a squeezing spring is fixedly installed on the upper end of the protruding rod, and the upper end of the squeezing spring is fixedly connected to the inner wall of the piston groove.

[0010] Furthermore, a transition groove is provided inside the probe rod, and an air outlet groove is provided through the lower end of the transition groove. The air outlet groove is connected with the inside of the piston cavity through an air inlet hole. A blocking rod is slidably installed inside the air outlet groove to seal the air outlet groove. Both the transition groove and the piston groove are provided with a one-way valve.

[0011] Furthermore, an air outlet hole is formed through the interior of the blocking rod, and the size of the air outlet hole corresponds to the position of the air inlet hole.

[0012] Furthermore, a notch is provided at a position of the outer wall of the blocking rod corresponding to the air inlet, and the size of the portion between the notch and the air outlet is larger than the size of the air inlet.

[0013] Furthermore, the size of the upper side of the blocking rod is smaller than the size of the air outlet groove, and the notch is connected to the inside of the air outlet groove.

[0014] Furthermore, the two sides of the lower end of the protruding rod corresponding to the contraction chamber and the piston chamber are inclined structures, the side of the lower end of the moving block and the piston block away from the center of the protruding rod is inclined structure, and an impact block for impacting the screen tube connection is fixedly installed on the lower outer wall of the protruding rod, the side of the lower side of the protruding rod away from the impact block is inclined structure, and the side of the lower end of the blocking rod away from the impact block is inclined structure.

[0015] Furthermore, a data processing module is installed on the outside of the fixed frame, and the pressure sensor transmits the recorded pressure data to the data processing module. The data processing module makes the received data into a waveform graph and compares the pressure data of the pressure sensor with the standard data. A control module and an alarm module are also installed on the outside of the fixed frame. When the pressure sensor data is greater than the maximum value of the standard data, the data is transmitted to the control module, and the control module controls the wire winding machine to stop working and controls the alarm module to alarm.

[0016] A wire wound screen tube forming method:

[0017] S1: When the screen is wound and formed, the lower end of the probe rod is placed between two adjacent steel wires. When the sleeve mold rotates, the steel wire is wound around the outside of the sleeve. At this time, the detection component is used to detect the gap size between the two adjacent steel wires;

[0018] S2: During the testing process, the impact block is used to impact the welding point between the two steel wires to detect the firmness of the welding point;

[0019] S3: The inner wall of the steel wire is squeezed by the piston block to determine whether the steel wire is deformed, thereby determining whether the connection between two adjacent steel wires is broken.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The detection component provided in the present invention can detect the gap between two adjacent steel wires, so as to avoid the gap between the two adjacent steel wires being too large or too small, causing the screen tube to fail to meet the specifications, making it difficult to achieve an ideal filtering effect when in use, and affecting the quality of the screen tube. The quality of the screen tube can be effectively guaranteed when the screen tube is manufactured. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of the fixing frame of the present invention;

[0024] Figure 3 It is a schematic diagram of the transition groove and the one-way valve structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the contraction chamber and the piston chamber of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the gas outlet slot of the present invention;

[0027] Figure 6 It is a partial structural schematic diagram of the blocking rod of the present invention;

[0028] Figure 7 This is a working flow diagram of the pressure sensor, data processing module, control module and alarm module of the present invention.

[0029] Description of the numbers in the figure:

[0030] 1. Wire winding machine; 101. Sleeve mold; 102. Fixed frame; 103. Piston groove; 104. Extrusion spring; 105. Data processing module; 106. Control module; 107. Alarm module;

[0031] 2. Probe rod; 201. Contraction chamber; 202. Piston chamber; 203. Piston block; 204. Tension spring; 205. Transition groove; 206. Air outlet groove; 207. Air inlet hole; 208. Blocking rod; 209. Air outlet hole; 210. Notch; 211. Impact block;

[0032] 3. Detection assembly; 301. Moving block; 302. Pressure sensor; 303. Pressure spring;

[0033] 4. Check valve. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0035] See also Figures 1 to 7 A wire winding screen tube forming device comprises a wire winding machine and a sleeve mold 101 installed on the wire winding machine 1, a fixing frame 102 is fixedly installed on the wire winding machine 1 near the upper side of the sleeve mold 101, a protruding rod 2 is installed on the lower side of the fixing frame 102, a contraction cavity 201 is opened on the lower outer wall of the protruding rod 2, and a detection component 3 is slidably installed inside the contraction cavity 201;

[0036] The detection component 3 includes a moving block 301 slidably installed inside the contraction chamber 201. The detection component 3 also includes two pressure sensors 302 installed inside the contraction chamber 201. The two pressure sensors 302 are respectively installed on both sides of the raised part of the moving block 301, and a pressure spring 303 is fixedly installed at one end of the pressure sensor 302 away from the moving block 301, and the other end of the pressure spring 303 is fixedly connected to the inner wall of the contraction chamber 201.

[0037] By adopting the above technical solution, the protruding rod 2 is located between two adjacent steel wires. When the steel wire is wound on the outside of the sleeve mold 101, when the steel wire is deformed, the gap between the two adjacent steel wires will change. When the gap between the two adjacent steel wires is larger or smaller, it will cause the screen to not meet the standards. Among them, when the steel wire is deformed, when the steel wire rotates to the position of the protruding rod 2, the extrusion force of the steel wire on the moving block 301 will be different. When the extrusion force on the moving block 301 is larger, the distance that the moving block 301 moves into the contraction cavity 201 will be larger. More, at this time, the pressure sensor 302 can be squeezed by the pressure spring 303, and the value of the pressure sensor 302 will be larger, indicating that the gap between the two adjacent steel wires is small, and the screen tube with a smaller gap does not meet the standard. On the contrary, when the extrusion force on the moving block 301 is small, the distance moved by the moving block 301 into the contraction cavity 201 is small. At this time, the pressure sensor 302 can be squeezed by the pressure spring 303, and the value of the pressure sensor 302 will be smaller, indicating that the gap between the two adjacent steel wires is large, and the screen tube with a larger gap does not meet the standard.

[0038] A piston cavity 202 is provided at one end of the lower side of the probe rod 2 opposite to the contraction cavity 201, a piston block 203 is slidably installed inside the piston cavity 202, a tension spring 204 is fixedly installed at one end of the piston block 203 close to the inner wall of the piston cavity 202, and the end of the tension spring 204 away from the piston block 203 is fixedly connected to the inner wall of the piston cavity 202, and the tension spring 204 pulls the piston block 203;

[0039] A piston groove 103 is formed at the lower end of the fixing frame 102, and the upper side of the protruding rod 2 is located inside the piston groove 103, and the upper side of the protruding rod 2 squeezes the air inside the piston groove 103. A squeezing spring 104 is fixedly installed at the upper end of the protruding rod 2, and the upper end of the squeezing spring 104 is fixedly connected to the inner wall of the piston groove 103;

[0040] A transition groove 205 is provided inside the probe rod 2, and an air outlet groove 206 is provided through the lower end of the transition groove 205. The air outlet groove 206 is connected to the inside of the piston chamber 202 through the air inlet hole 207. A blocking rod 208 is slidably installed inside the air outlet groove 206 to block the air outlet groove 206. A one-way valve 4 is provided inside the transition groove 205 and the piston groove 103.

[0041] An air outlet hole 209 is formed inside the blocking rod 208, and the size of the air outlet hole 209 corresponds to the position of the air inlet hole 207. A notch 210 is formed on the outer wall of the blocking rod 208 at a position corresponding to the air inlet hole 207. The size of the portion between the notch 210 and the air outlet hole 209 is larger than the size of the air inlet hole 207. The size of the upper side of the blocking rod 208 is smaller than the size of the air outlet groove 206, and the notch 210 is connected to the inside of the air outlet groove 206.

[0042] The two sides of the lower end of the probe rod 2 corresponding to the contraction chamber 201 and the piston chamber 202 are inclined structures, the side of the lower end of the moving block 301 and the piston block 203 away from the center of the probe rod 2 is inclined structure, and the impact block 211 for impacting the screen pipe connection is fixedly installed on the lower outer wall of the probe rod 2. The side of the lower side of the probe rod 2 away from the impact block 211 is inclined structure, and the side of the lower end of the blocking rod 208 away from the impact block 211 is inclined structure.

[0043] By adopting the above technical solution, when the sleeve mold 101 rotates, when the lower end of the probe rod 2 contacts the welding point of two adjacent steel wires, the inclined portion of the lower end of the probe rod 2 will block the welding point. At this time, the movement of the welding point can squeeze the inclined portion of the lower end of the probe rod 2, so that the probe rod 2 rises under the decomposition force of the squeezing force. After the probe rod 2 rises, it can squeeze the squeezing spring 104, and when the probe rod 2 rises, it can squeeze the air in the piston groove 103. At this time, the one-way valve 4 located inside the transition groove 205 can be opened under the action of air pressure. Thereby, air enters the transition groove 205 and the air outlet groove 206. When the protruding rod 2 descends, the impact block 211 fixedly installed on the protruding rod 2 will impact the welding point. When the impact block 211 hits the welding point and crosses the welding point, the protruding rod 2 is located on the other side of the welding point. At this time, the protruding rod 2 will descend under the action of the extrusion spring 104. After the protruding rod 2 rises and moves, the lower end of the blocking rod 208 first fits with the outer wall of the sleeve mold 101, and fits with the upper end of the welding point when passing the welding point. When the lower end of the blocking rod 208 does not contact the welding point and the protruding rod 2, the blocking rod 208 falls relative to the protruding rod 2, and the position of the air inlet will be aligned with the position of the air outlet as the protruding rod 2 rises. At this time, the air in the piston chamber 202 will be discharged through the air outlet 209. When the lower end of the blocking rod 208 begins to contact the outer wall of the steel wire, the blocking rod 208 can rise relative to the protruding rod 2 under the decomposition force of the steel wire extrusion force due to the inclined structure of the lower end of the blocking rod 208. After the blocking rod 208 rises, the position of the notch 210 can be aligned with the position of the air inlet. At this time, air can enter the piston through the air inlet. In the cavity 202, when the compressed air enters the piston cavity 202, the piston block 203 is squeezed to squeeze the steel wire, giving the connection a lateral pulling force, so as to determine whether the welding joint is broken. If the welding joint is broken, the steel wire will be deformed under the action of the squeezing force, so that the different spacings can be detected when the detection component 3 passes by. Among them, when the probe rod 2 descends, the one-way valve 4 in the probe rod 2 is in a closed state. At this time, the pressure in the piston groove 103 will decrease, so that the one-way valve 4 in the piston groove 103 will open under the action of the pressure difference.

[0044] A data processing module 105 is installed on the outside of the fixed frame 102. The pressure sensor 302 transmits the recorded pressure data to the data processing module 105. The data processing module 105 makes the received data into a waveform graph and compares the pressure data of the pressure sensor 302 with the standard data. A control module 106 and an alarm module 107 are also installed on the outside of the fixed frame 102. When the data of the pressure sensor 302 is greater than the maximum value of the standard data, the data is transmitted to the control module 106. The control module 106 controls the wire winding machine 1 to stop working and controls the alarm module 107 to alarm.

[0045] A wire wound screen tube forming method:

[0046] S1: When the screen is wound and formed, the lower end of the probe rod 2 is placed between two adjacent steel wires. When the sleeve mold 101 rotates, the steel wire is wound around the outside of the sleeve. At this time, the detection component 3 is used to detect the gap size between the two adjacent steel wires. When the pressure of the pressure sensor 302 is greater than the maximum value of the standard data, it means that the gap between the two adjacent steel wires does not meet the standard and needs to be readjusted;

[0047] S2: During the testing process, the impact block 211 is used to impact the welding point between the two steel wires to detect the firmness of the welding point. The impact can be used to determine whether the connection of the screen tube meets the standards;

[0048] S3: The inner wall of the steel wire is squeezed by the piston block 203 to determine whether the steel wire is deformed, thereby determining whether the connection between two adjacent steel wires is broken. When the connection between the steel wires is broken, the piston block 203 can squeeze the steel wire to deform it. When the moving block 301 passes through the deformed steel wire portion, it can be detected that the gap between the steel wires does not meet the standard.

[0049] The above are only preferred specific implementations of the present invention; however, 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 solutions and improved concepts 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. A wire-wound screen tube forming device, comprising a wire-wound machine (1) and a sleeve mold (101) mounted on the wire-wound machine (1), characterized in that: A fixing frame (102) is fixedly installed on the wire winding machine (1) at a position close to the upper side of the sleeve mold (101); a protruding rod (2) is installed on the lower side of the fixing frame (102); a contraction cavity (201) is formed on the lower outer wall of the protruding rod (2); and a detection component (3) is slidably installed inside the contraction cavity (201); The detection component (3) comprises a moving block (301) slidably mounted inside the contraction chamber (201), and the detection component (3) further comprises two pressure sensors (302) mounted inside the contraction chamber (201), the two pressure sensors (302) being mounted on both sides of a raised portion of the moving block (301), respectively, and a pressure spring (303) being fixedly mounted on one end of the pressure sensor (302) away from the moving block (301), and the other end of the pressure spring (303) being fixedly connected to an inner wall of the contraction chamber (201); A piston cavity (202) is provided at the lower end of the probe rod (2) opposite to the contraction cavity (201), a piston block (203) is slidably mounted inside the piston cavity (202), a tension spring (204) is fixedly mounted at one end of the piston block (203) close to the inner wall of the piston cavity (202), and an end of the tension spring (204) away from the piston block (203) is fixedly connected to the inner wall of the piston cavity (202), and the tension spring (204) pulls the piston block (203); A piston groove (103) is formed at the lower end of the fixing frame (102), the upper side of the protruding rod (2) is located inside the piston groove (103), and the upper side of the protruding rod (2) squeezes the air inside the piston groove (103), and a squeezing spring (104) is fixedly mounted on the upper end of the protruding rod (2), and the upper end of the squeezing spring (104) is fixedly connected to the inner wall of the piston groove (103); A transition groove (205) is provided inside the protruding rod (2), and an air outlet groove (206) is provided through the lower end of the transition groove (205); the air outlet groove (206) is communicated with the interior of the piston chamber (202) through an air inlet hole (207); a blocking rod (208) is slidably installed inside the air outlet groove (206) for blocking the air outlet groove (206); and a one-way valve (4) is provided inside the transition groove (205) and the piston groove (103); An air outlet hole (209) is formed through the interior of the blocking rod (208), and the size of the air outlet hole (209) corresponds to the position of the air inlet hole (207); A notch (210) is provided on the outer wall of the blocking rod (208) at a position corresponding to the air inlet hole (207), and the size of the portion between the notch (210) and the air outlet hole (209) is larger than the size of the air inlet hole (207); The size of the upper side of the blocking rod (208) is smaller than the size of the air outlet groove (206), and the notch (210) is communicated with the inside of the air outlet groove (206); The two sides of the lower end of the protruding rod (2) corresponding to the contraction chamber (201) and the piston chamber (202) are in an inclined structure, the lower ends of the moving block (301) and the piston block (203) are in an inclined structure away from the center of the protruding rod (2), an impact block (211) for impacting the connection of the screen pipe is fixedly installed on the lower outer wall of the protruding rod (2), the lower side of the protruding rod (2) away from the impact block (211) is in an inclined structure, and the lower end of the blocking rod (208) is in an inclined structure away from the impact block (211); A data processing module (105) is installed outside the fixing frame (102); the pressure sensor (302) transmits recorded pressure data to the data processing module (105); the data processing module (105) generates a waveform graph of the received data and compares the pressure data of the pressure sensor (302) with standard data; a control module (106) and an alarm module (107) are also installed outside the fixing frame (102); when the data of the pressure sensor (302) is greater than the maximum value of the standard data, the data is transmitted to the control module (106); the control module (106) controls the wire winding machine (1) to stop working and controls the alarm module (107) to sound an alarm.

2. A forming method for a wire-wound screen tube forming device according to claim 1, characterized in that: S1: When the screen tube is wound and formed, the lower end of the probe rod (2) is placed between two adjacent steel wires. When the sleeve mold (101) rotates, the steel wire is wound around the outside of the sleeve. At this time, the detection component (3) is used to detect the size of the gap between the two adjacent steel wires. S2: During the testing process, the impact block (211) is used to impact the welding point between the two steel wires to detect the firmness of the welding point; S3: The inner wall of the steel wire is squeezed by the piston block (203) to determine whether the steel wire is deformed, thereby determining whether the connection between two adjacent steel wires is broken.

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