A raw tape forming device

Abstract

The present invention provides a raw material strip forming device, comprising a raw material barrel and a forming area, the forming area comprising a high-temperature area, an extension area and a cooling area through which the raw material passes in sequence, the high-temperature area comprising a mold part and a heating part for heating the mold part, the mold part being provided with a fixed mold channel communicated with a material conveying pipe, the extension area comprising four groups of extension blocks, each group of extension blocks having a moving distance from an inner wall of a shell, a calendering channel being provided between the two groups of extension blocks in the upper part and the two groups of extension blocks in the lower part, the two groups of extension blocks in the upper part of the calendering channel being provided with clamping strips close to the shell side, a driving assembly for driving the extension blocks to move so as to change the width and height of the calendering channel being further provided in the shell, the two groups of extension blocks in the upper part being provided with a flapping part that moves in the calendering channel, the cooling area comprising a forming mold and a cooling part for cooling the forming mold; the advantage of the present invention is that the raw material can be pressed and pulled according to temperature control to efficiently prepare qualified raw material strips.

Description

Technical Field

[0001] The present invention relates to the field of raw tape preparation, and more particularly to a raw tape forming device. Background Art

[0002] Raw tape is a commonly used auxiliary product in pipeline installation. It is used at the joints of pipe fittings to enhance the airtightness of the pipe joints. Raw tape is a novel and ideal sealing material. The main raw material is made of polytetrafluoroethylene. The preparation principle is to heat polytetrafluoroethylene to a fluid state, push it into a rod shape, extrude it, and finally cool it.

[0003] Currently, the existing raw tape forming equipment is mainly extrusion molding. For example, the prior art (patent number: CN202211451828.X) discloses a new type of expanded raw tape production and molding equipment, which uses pressure rollers to extrude heated polytetrafluoroethylene to form a finished raw tape, and the thickness of the raw tape is determined by the calendering gap between two sets of pressure rollers. However, this molding method easily causes the raw tape to be damaged or irregular due to extrusion, and the width will change. In addition, multiple sets of pressure rollers need to be set up for multiple extrusions. After damage, it needs to be cut and reconnected. The process is complicated and it is difficult to ensure the qualified rate. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a raw tape forming device, which can efficiently prepare qualified raw tape by pressing and pulling the raw materials according to temperature control.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A raw material strip forming device comprises a raw material barrel and a forming area, wherein the raw material barrel contains fluid raw material and is provided with a feed pipe for conveying the raw material to the forming area. The forming area comprises a high-temperature zone, an extension zone, and a cooling zone through which the raw material passes in sequence. The high-temperature zone comprises a housing and a mold member located within the housing. The housing is further provided with a heating element for heating the mold member. The mold member is provided with a fixed mold channel in communication with the feed pipe.

[0007] The extension area includes a shell and four groups of extension blocks located in the shell, the extension blocks are arranged opposite to each other in pairs and spliced ​​to form a cylinder, the two ends of the two groups of extension blocks in the lower part are slidably connected to the shell, and there is a movement distance between each group of extension blocks and the inner wall of the shell, and a calendering channel is provided between the two groups of extension blocks in the upper part and the two groups of extension blocks in the lower part, and the two ends of the shell have openings connecting the fixed film channel and the calendering channel, and the two groups of extension blocks in the upper part of the calendering channel are provided with clamping strips near the shell side, and a driving assembly is further provided in the shell, and the driving assembly is used to drive the extension blocks to move so as to change the width and height of the calendering channel, and the two groups of extension blocks in the upper part are provided with flapping members that move in the calendering channel;

[0008] The cooling zone includes a cooling cover and a forming mold located in the cooling cover. The forming mold is provided with a forming channel communicating with the calendering channel. The cooling cover is provided with a cooling member for cooling the forming mold.

[0009] Furthermore, the drive assembly includes a first screw and two groups of second screws, the first screw passes through the shell horizontally, and the first screw is located in the gap on one side of the sliding connection between the extension block and the shell, the two groups of second screws are vertically located on both sides of the calendering channel, each group of second screws is provided with a first gear near one end of the first screw, a moving part is threadedly connected to the first screw, and the side of the moving part facing away from the first gear is slidably connected to the shell, and a tooth plate surface meshing with the first gear is provided on the side facing the first gear, the second screw is threadedly connected to the extension block of the upper part, and is connected to the extension block bearing of the lower part.

[0010] Furthermore, the drive assembly also includes two groups of first push rods and two groups of second push rods, the end of each group of first push rods is provided with a second gear that cooperates with the tooth plate surface, and the two groups of extension blocks in the lower part are provided with air passages, the second gear is horizontally located on the sliding path of the moving part, the end of the first push rod away from the second gear extends into the air passage, and the end is provided with a first piston part, the second push rod is slidably connected in the air passage, and the end of the second push rod facing the first piston part is provided with a second piston part, and the end of the second push rod away from the second piston part is pressed against the adjacent extension block of the lower part.

[0011] Furthermore, the beating member includes multiple groups of clapping plates and cylinders, the clapping plates are located at the bottom of the extension block of the upper part, the cylinder is located in the extension block, an air column and an air valve are provided on the top of the outer shell, an air pipe for connecting the air pump and the cylinder is provided on the air column, the air valve is located on the air column, an electric contact is provided on the second gear, and an electric contact that is in electrical contact with the electric contact is provided in each tooth groove of the tooth panel.

[0012] Furthermore, the cover body includes an outer cover and an inner cover, a through hole is provided between the outer cover and the inner cover, a switch is provided on the through hole, the heating element is an electric heating wire mounted in the inner cover, the outer cover is provided with a heating tube connected to the extension block at the lower part, and the heating tube is provided with a fan for transporting the hot air in the outer cover to the extension block.

[0013] Furthermore, an inspection area is provided between the stretching area and the cooling area, and the inspection area includes a transparent template spliced ​​together from top to bottom, and an inspection channel connected to the calendering channel is provided between the transparent templates, a light source is provided at the bottom of the transparent template, and a camera is provided at the top of the transparent template. A cutting mechanism and a back-pressure mechanism are provided on the side of the transparent template close to the cooling area, and a waste port is provided above the forming channel. The cutting mechanism is used to cut off the defective section of the raw tape, and the back-pressure mechanism is used to blow the cut defective tape out of the waste port.

[0014] Furthermore, the fixed mold channel includes a first part and a second part, the longitudinal cross-section of the first part is circular, the longitudinal cross-section of the second part is square, the width and height of the second part are both smaller than the width and height of the first part, and there is a transition section between the first part and the second part.

[0015] Furthermore, a controller is provided in the molding area, and the controller includes a collection module, an analysis module and a control module;

[0016] The acquisition module acquires the image of the raw tape to be inspected captured by the camera as the image to be inspected;

[0017] The analysis module acquires the image to be inspected from the acquisition module, performs analysis based on the image to be inspected, and issues a bad instruction if cracks and wrinkles are found, and issues a normal instruction if no cracks and wrinkles are found;

[0018] When the control module obtains the defective instruction, it controls the cutting mechanism to cut off the defective section of the raw tape, and controls the back pressure mechanism to blow the cut defective tape out of the waste outlet.

[0019] Furthermore, the acquisition module obtains the electrical signal generated when the electrical contact contacts the electrical contact as a starting signal; the control module controls the air valve to open when the starting signal is obtained; the controller also includes a feedback module, and when the feedback module obtains a bad signal from the analysis module, it issues an adjustment command; the control module also includes a control submodule, and when the control submodule obtains the adjustment command, it controls the air valve to open as a group with multiple starting signals.

[0020] Furthermore, a temperature detector is provided on the extension block of the lower part. The acquisition module obtains the temperature of the extension block detected by the temperature detector as the actual temperature value. The analysis module obtains the actual temperature value and analyzes whether it is greater than a threshold value. If so, a cooling instruction is issued. If not, a heating instruction or a pending instruction is issued. When the control module obtains the cooling instruction, it controls the back pressure mechanism to allow cold air to pass into the outer shell. When the control module obtains the heating instruction, it controls the switch to open and controls the fan to turn on to input the hot air in the outer cover into the extension block.

[0021] The beneficial effects of the present invention are as follows: 1. The temperature of the raw tape is controlled by setting three different areas. Specifically, by setting a high-temperature zone, an extension zone and a cooling zone, the molding requirements of the raw tape can be met, and the problem of rapid cooling and damage of the high-temperature raw tape can be avoided. By setting the extension of the extension block to replace the existing roller pressing method, the problem of different widths of the raw tape caused by the pressing roller can be avoided. Specifically, through the mutual coordination of the four groups of extension blocks, the two sides of the initially shaped polytetrafluoroethylene strip can be clamped, and the two groups of extension blocks in the lower part can be separated to achieve the purpose of simulating stretching and extension. The slapping piece can be set to slap the raw tape downward during stretching and extension, so that the upper surface of the raw tape is flat and the width can always be kept consistent.

[0022] 2. By setting up a detection area, the stretched raw tape can be inspected. Specifically, the stretched raw tape passes through a transparent template, and then is irradiated by a light source and photographed by a camera above to detect the surface of the raw tape. When damage is detected, it is cut and pressed back to the high-temperature zone for bonding, thereby improving the production efficiency of the raw tape.

[0023] 3. By setting up an acquisition module, an analysis module and a control module, the surface image of the raw tape can be obtained in conjunction with a camera, and the image can be automatically analyzed by the analysis module to determine the qualified rate of the raw tape. In conjunction with the electrical contacts and electrical connectors, the opening of the air valve can be automatically controlled according to the start signal, and the opening frequency of the air valve can be adjusted with multiple start signals as a group; in conjunction with the temperature detector, the temperature on the extension block can be obtained, and the opening of the switch and the fan can be controlled according to the temperature to adjust the temperature of the extension block. Various adjustments can be automatically made through the control of the controller to improve the molding efficiency of the raw tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the overall structural diagram of the present invention;

[0025] Figure 2 is a cross-sectional view of the present invention;

[0026] Figure 3 It is an explosion photo of the extension area in the present invention;

[0027] Figure 4 is a cross-sectional view of the extension zone of the present invention;

[0028] Figure 5 is a cross-sectional view of the first part of the present invention;

[0029] Figure 6 is a cross-sectional view of the second part of the present invention;

[0030] Figure 7 is a cross-sectional view of the cooling zone in the present invention;

[0031] Figure 8 It is a relationship diagram of the control part in the present invention.

[0032] Figure numerals: 1, raw material barrel; 2, feed pipe; 3, high temperature zone; 311, outer cover; 312, inner cover; 32, mold part; 33, heating element; 341, first part; 342, second part; 35, heating tube; 4, extension zone; 41, shell; 42, extension block; 43, calendering channel; 44, through port; 45, clamping strip; 46, clapping element; 461, clapping plate; 462, cylinder; 47, air pipe; 5, cooling zone; 51, cooling cover; 52, forming mold; 6, drive Components; 61. First screw; 62. Second screw; 63. First gear; 64. Moving part; 641. Tooth plate surface; 642. Electrical contact; 65. First push rod; 66. Second push rod; 67. First piston member; 68. Second piston member; 7. Airway; 8. Detection area; 81. Transparent template; 82. Light source; 83. Camera; 9. Back pressure mechanism; 101. Acquisition module; 102. Analysis module; 103. Control module; 104. Feedback module; 105. Control submodule. DETAILED DESCRIPTION

[0033] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments. Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom," "top," "inner," and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

[0034] Currently, the finished raw tape is formed by pressing the heated polytetrafluoroethylene by pressing rollers, and the thickness of the raw tape is determined by the calendering gap between the two sets of pressing rollers. However, this forming method easily causes the raw tape to be damaged or irregular when pressed, and the width will change. In addition, multiple sets of pressing rollers need to be set for multiple extrusions. After damage, it needs to be cut and reconnected. The process is complicated and it is difficult to ensure the qualified rate. Therefore, the present invention designs such a raw tape forming device, and the specific structure is as follows Figure 1 and Figure 2As shown, it includes a raw material barrel 1 and a molding area (the control part is as shown Figure 8 As shown, the molding area is also provided with a controller, which includes a collection module 101, an analysis module 102 and a control module 103. The raw material barrel 1 is filled with a fluid raw material (the raw material is polytetrafluoroethylene, which is fluid after being heated to a certain temperature). A pressure pump is provided above the raw material barrel 1 to apply pressure to the raw material barrel 1. A feed pipe 2 for conveying the raw material to the molding area is also provided on the raw material barrel 1. Since polytetrafluoroethylene itself is a plastic material, if polytetrafluoroethylene is directly shaped and cooled from a high-temperature fluid state, it is easy to crack or break. Therefore, the molding area in the present invention includes the raw material. The fluid raw material passes through the high-temperature zone 3, the stretching zone 4 and the cooling zone 5 in sequence. The fluid raw material first enters the high-temperature zone 3 for preliminary shaping, then enters the stretching zone 4 for transition cooling, stretching and stretching to the required state, and finally enters the cooling zone 5 for cooling and shaping. Specifically, the high-temperature zone 3 includes a cover body and a mold member 32 located inside the cover body. The cover body is also provided with a heating member 33 for heating the mold member 32. The mold member 32 is provided with a fixed mold channel connected to the material conveying pipe 2. The mold member 32 specifically includes an upper mold member and a lower mold member. After the upper mold member and the lower mold member are spliced ​​by bolts, the middle part will form a fixed mold channel that is closed from top to bottom.

[0035] like Figure 3 and Figure 4As shown, the extension area 4 includes a shell 41 and four groups of extension blocks 42 located in the shell 41. The extension blocks 42 are arranged opposite to each other in pairs and spliced ​​to form a cylinder (in the initial state, the four groups of extension blocks 42 are divided into two parts, namely the upper part and the lower part, each part is two groups of extension blocks 42, the two groups of extension blocks 42 in the upper part are spliced ​​into a semicircle, and the two groups of extension blocks 42 in the lower part are spliced ​​into a semicircle). The shell 41 itself is cylindrical, and the four groups of extension blocks 42 are all arranged in the length direction of the cylinder, that is, the two ends of the two groups of extension blocks 42 in the lower part are slidably connected to the shell 41, and there is a moving distance between each group of extension blocks 42 and the inner wall of the shell 41. There is a calendering channel 43 between the two groups of extension blocks 42 in the upper part and the two groups of extension blocks 42 in the lower part. The two ends of the shell 41 have a through hole 44 connecting the fixed film channel and the calendering channel 43. In the initial state, the width of the calendering channel 43 is 2.3mm. The width is the same as the width of the fixed die channel. The two groups of extension blocks 42 in the upper part of the calendering channel 43 are both provided with clamping strips 45 near the side of the shell 41, that is, the clamping strips 45 are also arranged along the length direction of the extension blocks 42. A driving component 6 is also provided in the shell 41. The driving component 6 is used to drive the extension blocks 42 to move to change the width and height of the calendering channel 43. When the driving component 6 drives the extension blocks 42 to move and the height of the calendering channel 43 changes, the clamping strips 45 on the corresponding upper extension blocks 42 will approach or move away from the clamping strips 45 of the lower extension blocks 42. When the width of the calendering channel 43 changes, the corresponding two groups of extension blocks 42 in the upper part will move toward or away from each other in the horizontal plane, and the corresponding two groups of extension blocks 42 in the lower part will move toward or away from each other in the horizontal plane. A flapping piece 46 that moves in the calendering channel 43 is provided in the two groups of extension blocks 42 in the upper part.

[0036] like Figure 7 As shown, the cooling zone 5 includes a cooling cover 51 and a forming mold 52 located in the cooling cover 51. A forming channel communicating with the calendering channel 43 is provided in the forming mold 52. The width of the forming channel is the same as the width of the calendering channel 43 after stretching, and is the same as the width of the through-opening 44. That is, the width of the forming channel is greater than the width of the fixed mold channel. A cooling member for cooling the forming mold 52 is provided in the cooling cover 51.

[0037] The advantage of the present invention is that the temperature of the raw tape can be controlled by setting three different areas. Specifically, by setting a high-temperature zone 3, an extension zone 4 and a cooling zone 5, the molding requirements of the raw tape can be met, and the problem of rapid cooling and damage of the high-temperature raw tape can be avoided. By setting the extension of the extension block 42 to replace the existing roller pressing method, the problem of different widths of the raw tape caused by the pressing roller can be avoided. Specifically, through the mutual coordination of the four groups of extension blocks 42, the two sides of the initially shaped polytetrafluoroethylene strip can be clamped, and the two groups of extension blocks 42 in the lower part can be separated to achieve the purpose of simulated stretching and extension. The flapping piece 46 can be set to flap the raw tape downward during stretching and extension, so that the upper surface of the raw tape is flat and the width can always remain consistent.

[0038] The working principle of the present invention is as follows: the polytetrafluoroethylene fluid in the raw material barrel 1 is fed into the fixed mold channel of the high temperature zone 3 through the feed pipe 2 for initial fixed mold, and then the raw material strip after the initial fixed mold is transported to the calendering channel 43 in the extension zone 4 by high pressure. The two groups of extension blocks 42 in the upper part and the two groups of extension blocks 42 in the lower part move relative to each other under the action of the drive assembly 6. First, the two groups of extension blocks 42 in the upper part will move downward so that the clamping strips 45 on the two groups of extension blocks 42 in the upper part are mortgaged downward in the calendering channel 43. On both sides of the raw tape, the driving component 6 will then drive the two groups of extension blocks 42 in the lower part to separate from each other on the horizontal plane, and the corresponding two groups of extension blocks 42 in the upper part will also separate from each other on the horizontal plane to achieve stretching. At the same time, during the stretching process, the upper beating member 46 will simultaneously beat the raw tape downward to achieve uniform stretching. When the width of the stretched raw tape reaches the predetermined width, the high pressure continues to transport the raw tape to the forming channel in the cooling zone 5, and the cooling member cools the formed raw tape and outputs it.

[0039] like Figure 3As shown, the driving assembly 6 includes a first screw 61 and two groups of second screws 62. The first screw 61 passes through the shell 41 horizontally, and the first screw 61 is located in the gap on one side of the sliding connection between the extension block 42 and the shell. The two groups of second screws 62 are respectively vertically located on both sides of the calendering channel 43. Each group of second screws 62 is provided with a first gear 63 near one end of the first screw 61. A moving part 64 is threadedly connected to the first screw 61. The side of the moving part 64 facing away from the first gear 63 is slidably connected to the shell, and a toothed plate surface 641 meshing with the first gear 63 is provided on the side facing the first gear 63. The second screw 62 is threadedly connected to the extension block 42 of the upper part and is connected to the extension block 42 of the lower part with a bearing. The above structure mainly realizes the downward movement of the two groups of extension blocks 42 of the upper part to make the clamping strip 45 press against the two sides of the raw tape, which has The body movement is: the first screw 61 rotates under the drive of the motor, the moving part 64 is restricted by horizontal sliding, and is connected to the first screw 61 in rotation, then the moving part 64 can achieve horizontal sliding, and the corresponding first gear 63 on the second screw 62 can engage with the toothed plate surface 641 on the moving part 64, then the horizontal movement of the moving part 64 can drive the first gear 63 to rotate, and the corresponding second screw 62 can rotate, the second screw 62 is connected to the lower extension block 42 by a bearing, and is threadedly connected to the upper extension block 42, then the rotation of the second screw 62 can drive the upper extension block 42 to move downward, in order to enhance the stability of the upper extension block 42, the driving assembly 6 is divided into two groups, which are respectively arranged at both ends of the length direction of the shell 41, that is, the two groups of first screws 61 are connected by a third screw transmission.

[0040] like Figure 3 and Figure 4As shown, the drive assembly 6 also includes two groups of first push rods 65 and two groups of second push rods 66. The end of each group of first push rods 65 is provided with a second gear that cooperates with the tooth plate surface 641. The second gear is located on one side of the first gear 63. The two groups of extension blocks 42 in the lower part are both provided with air passages 7. The second gear is horizontally located on the sliding path of the moving member 64. The end of the first push rod 65 away from the second gear extends into the air passage 7, and the end is provided with a first piston member 67. The second push rod 66 is slidably connected in the air passage 7, and the end of the second push rod 66 facing the first piston member 67 is provided with a second piston member 68. The end of the second push rod 66 away from the second piston member 68 is pressed against the adjacent extension block 42 in the lower part. The two groups of air passages 7 are staggered, that is, the two groups of second The push rods 66 are staggered with each other. The above structure mainly realizes the separation and approach of the extension blocks 42. Specifically, when the moving member 64 moves horizontally until the first gear 63 is disengaged from the tooth plate surface 641, the clamping strip 45 completes the pressure. At this time, the tooth plate surface 641 on the moving member 64 is engaged with the second gear. As the moving member 64 continues to move, the rotation of the second gear can drive the first push rod 65 to move in the airway 7. The first piston member 67 squeezes the air in the airway 7 to push the second piston to move, that is, the corresponding second push rod 66 moves out of the airway 7. One end of the second push rod 66 presses on the adjacent extension block 42, pushing the extension block 42 to one side. The mutual push of the two groups of second push rods 66 can separate and push the two groups of extension blocks 42 in the lower part apart.

[0041] like Figure 3 and Figure 4 As shown, the slapping member 46 includes multiple groups of clappers 461 and cylinders 462. The clapper 461 is located at the bottom of the upper extension block 42, and the cylinder 462 is located in the extension block 42. An air column and an air valve are provided on the top of the outer shell. An air pipe 47 for connecting the air pump and the cylinder 462 is provided on the air column. The air valve is located on the air column. An electric contact 642 is provided on the second gear. An electric contact that is in electrical contact with the electric contact 642 is provided in each tooth groove of the tooth plate. The above structure mainly achieves the purpose of slapping simultaneously during stretching. Specifically, when the extension block 42 is stretching, due to the rotation of the second gear, the electric contact 642 on the second gear contacts the electric contact in each tooth groove, an electric signal is sent out, and the air valve is opened according to each electric signal. The clapper 461 slaps downward once the air valve opens. During the gap between the two electric signals, the air valve is closed and the clapper 461 is reset. A reset spring is also provided at the connection between the clapper 461 and the telescopic column of the cylinder 462.

[0042] like Figure 5As shown, the cover includes an outer cover 311 and an inner cover 312. A through hole is provided between the outer cover 311 and the inner cover 312, and a switch is provided on the through hole. The heating element 33 is an electric heating wire installed in the inner cover 312. When the electric heating wire is heated, it can mainly heat the space in the inner cover 312, and mainly heat the mold part 32 so that the mold part 32 reaches a certain temperature. The temperature of the space between the outer cover 311 and the inner cover 312 will also increase accordingly. Since the two groups of the lower part of the raw tape are placed in the extension area 4, the temperature of the space between the outer cover 311 and the inner cover 312 will also increase accordingly. The extension block 42 also requires a certain temperature, so a heating pipe 35 connected to the lower extension block 42 is provided on the outer cover 311. The heating pipe 35 is provided with a fan for conveying the hot air in the outer cover 311 to the extension block 42. When the temperature input to the extension block 42 is too low, the switch on the through hole is opened to dissipate the temperature in the inner cover 312 to increase the temperature between the outer cover 311 and the inner cover 312. The control part, the lower extension block 42, is also provided with a temperature detector to collect Module 101 obtains the temperature of the extension block 42 detected by the temperature detector as the actual temperature value, and the analysis module 102 obtains the actual temperature value and analyzes whether it is greater than the threshold value. If so, a cooling instruction is issued. If not, a heating instruction or a pending instruction is issued. When the control module 103 obtains the cooling instruction, it controls the back pressure mechanism 9 to pass cold air into the shell. When the control module 103 obtains the heating instruction, it controls the switch to open and controls the fan to turn on to input the hot air in the outer cover 311 into the extension block 42. The control part includes the acquisition module 101 to obtain the electrical signal generated when the electrical contact 642 contacts the electrical contact as a starting signal; the control module 103, when the starting signal is obtained, controls the air valve to open; the controller also includes a feedback module 104, when the feedback module 104 obtains a bad signal in the analysis module 102, it issues an adjustment command; the control module 103 also includes a control submodule 105, when the control submodule 105 obtains the adjustment command, it controls the air valve to open as a group of multiple starting signals.

[0043] like Figure 1 and Figure 2As shown, since problems such as stretching rupture or uneven upper surface may still occur during the stretching process, inspection is required. Therefore, an inspection area 8 is further provided between the stretching area 4 and the cooling area 5. The inspection area 8 includes a transparent template 81 spliced ​​together from top to bottom, and an inspection channel connected to the calendering channel 43 is provided between the transparent template 81. A light source 82 is provided at the bottom of the transparent template 81, and a camera 83 is provided at the top of the transparent template 81. A cutting mechanism and a back pressure mechanism 9 are provided on the side of the transparent template 81 close to the cooling area 5. A waste outlet is provided above the forming channel. The cutting mechanism is used to cut off the defective section of the raw tape (the cutting mechanism is a universal cutter), and the back pressure mechanism 9 is used to blow the cut defective tape out of the waste outlet (the back pressure mechanism 9 is a universal back-flushing component, which can mainly flush the cut defective products out of the waste outlet by back-flushing). The acquisition module 101 obtains the image of the raw tape to be inspected taken by the camera 83 as the image to be inspected;

[0044] The analysis module 102 acquires the image to be inspected from the acquisition module 101, analyzes the image to be inspected, and issues a bad instruction if cracks and wrinkles are found; otherwise, issues a normal instruction;

[0045] The control module 103 controls the cutting mechanism to cut off the defective section of the raw tape when a defective instruction is obtained, and controls the back pressure mechanism 9 to blow the cut defective tape out of the waste outlet.

[0046] like Figure 5 and Figure 6 As shown, the fixed mold channel includes a first part 341 and a second part 342. The longitudinal cross-section of the first part 341 is circular, and the longitudinal cross-section of the second part 342 is square. The width and height of the second part 342 are both smaller than the width and height of the first part 341. There is a transition section between the first part 341 and the second part 342. The present invention sets the fixed mold channel as a cylindrical first part 341 and a square strip-shaped second part 342. The main purpose is because the raw material has an extrusion process when it moves from the first part 341 to the second part 342, so that the initially shaped raw tape can be tighter, which is convenient for subsequent extension and stretching.

[0047] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the principles of the present invention are within the scope of protection of the present invention. It should be noted that improvements and modifications that do not depart from the principles of the present invention are within the scope of protection of the present invention.

Claims

1. A raw material strip forming device, comprising a raw material barrel (1) and a forming area, wherein the raw material barrel (1) contains a fluid raw material, and the raw material barrel (1) is provided with a feed pipe (2) for conveying the raw material to the forming area, characterized in that: The molding zone includes a high-temperature zone (3), an extension zone (4), and a cooling zone (5) through which the raw materials pass in sequence. The high-temperature zone (3) includes a cover body and a mold member (32) located within the cover body. The cover body is also provided with a heating member (33) for heating the mold member (32). The mold member (32) is provided with a fixed mold channel that communicates with the material delivery pipe (2). The extension area (4) includes a shell (41) and four groups of extension blocks (42) located in the shell (41). The extension blocks (42) are arranged in pairs and are spliced ​​to form a cylinder. The two ends of the two groups of extension blocks (42) in the lower part are slidably connected to the shell (41). There is a movement distance between each group of extension blocks (42) and the inner wall of the shell (41). There is a calendering channel (43) between the two groups of extension blocks (42) in the upper part and the two groups of extension blocks (42) in the lower part. The shell (4 1) has through openings (44) at both ends communicating with the fixed die channel and the calendering channel (43), the upper two groups of extension blocks (42) in the calendering channel (43) are both provided with clamping strips (45) near the shell (41), the shell (41) is also provided with a driving assembly (6), the driving assembly (6) is used to drive the extension blocks (42) to move so as to change the width and height of the calendering channel (43), and the upper two groups of extension blocks (42) are provided with a flapping member (46) that moves in the calendering channel (43); The cooling zone (5) includes a cooling cover (51) and a forming mold (52) located in the cooling cover (51); a forming channel communicating with the calendering channel (43) is provided in the forming mold (52); and a cooling element for cooling the forming mold (52) is provided in the cooling cover (51).

2. A raw tape forming device according to claim 1, characterized in that: The driving assembly (6) includes a first screw (61) and two groups of second screws (62), the first screw (61) passes through the shell (41) horizontally, and the first screw (61) is located in the gap on one side of the sliding connection between the extension block (42) and the shell, the two groups of second screws (62) are respectively vertically located on both sides of the calendering channel (43), and each group of second screws (62) is provided with a first gear (63) at one end close to the first screw (61), and a moving part (64) is threadedly connected to the first screw (61), and the side of the moving part (64) facing away from the first gear (63) is slidably connected to the shell, and a tooth plate surface (641) meshing with the first gear (63) is provided on the side facing the first gear (63), and the second screw (62) is threadedly connected to the extension block (42) of the upper part and connected to the extension block (42) of the lower part by a bearing.

3. A raw tape forming device according to claim 2, characterized in that: The driving assembly (6) further comprises two groups of first push rods (65) and two groups of second push rods (66), the end of each group of the first push rods (65) is provided with a second gear matched with the tooth plate surface (641), the two groups of extension blocks (42) in the lower part are provided with an air channel (7), the second gear is horizontally located on the sliding path of the moving member (64), the end of the first push rod (65) away from the second gear extends into the air channel (7), and the end is provided with a first piston member (67), the second push rod (66) is slidably connected in the air channel (7), and the end of the second push rod (66) facing the first piston member (67) is provided with a second piston member (68), and the end of the second push rod (66) away from the second piston member (68) is pressed against the extension block (42) adjacent to the lower part.

4. A raw tape forming device according to claim 3, characterized in that: The beating member (46) includes a plurality of beating plates (461) and a cylinder (462), wherein the beating plates (461) are located at the bottom of the upper extension block (42), and the cylinder (462) is located in the extension block (42). An air column and an air valve are provided on the top of the housing, an air pipe (47) for connecting the air pump and the cylinder (462) is provided on the air column, and the air valve is located on the air column. An electric contact (642) is provided on the second gear, and an electric contact piece for electrical contact with the electric contact (642) is provided in each tooth groove of the tooth plate surface (641).

5. The raw tape forming device according to claim 4, characterized in that: The cover body comprises an outer cover (311) and an inner cover (312); a through hole is provided between the outer cover (311) and the inner cover (312); a switch is provided on the through hole; the heating element (33) is an electric heating wire mounted in the inner cover (312); the outer cover (311) is provided with a heating pipe (35) connected to the extension block (42) at the lower part; the heating pipe (35) is provided with a fan for transporting hot air in the outer cover (311) to the extension block (42).

6. A raw tape forming device according to claim 5, characterized in that: A detection zone (8) is further provided between the stretching zone (4) and the cooling zone (5), wherein the detection zone (8) includes a transparent template (81) formed by splicing the upper and lower parts, and a detection channel communicating with the calendering channel (43) is provided between the transparent templates (81), a light source (82) is provided at the bottom of the transparent template (81), and a camera (83) is provided at the top of the transparent template (81). A cutting mechanism and a back pressure mechanism (9) are provided on the side of the transparent template (81) close to the cooling zone (5), and a waste outlet is provided above the forming channel, wherein the cutting mechanism is used to cut off the defective section of the raw tape, and the back pressure mechanism (9) is used to blow the cut defective tape out of the waste outlet.

7. The raw tape forming device according to claim 5, characterized in that: The fixed mold channel includes a first part (341) and a second part (342), the longitudinal section of the first part (341) is circular, the longitudinal section of the second part (342) is square, the width and height of the second part (342) are both smaller than the width and height of the first part (341), and a transition section is provided between the first part (341) and the second part (342).

8. The raw tape forming device according to claim 6, characterized in that: A controller is also provided in the molding area, and the controller includes a collection module (101), an analysis module (102) and a control module (103); The acquisition module (101) acquires the image of the raw tape to be inspected captured by the camera (83) as the image to be inspected; The analysis module (102) acquires the image to be inspected from the acquisition module (101), performs analysis based on the image to be inspected, and issues a bad instruction if cracks and wrinkles are found, and issues a normal instruction if no cracks and wrinkles are found; When the control module (103) obtains a defective instruction, it controls the cutting mechanism to cut off the defective section of the raw tape, and controls the back pressure mechanism (9) to blow the cut defective tape out of the waste outlet.

9. The raw tape forming device according to claim 8, characterized in that: The acquisition module (101) acquires the electrical signal generated when the electrical contact (642) contacts the electrical contact piece as a start signal; the control module (103) controls the air valve to open when the start signal is acquired; the controller further includes a feedback module (104) which issues an adjustment command when the feedback module (104) acquires a bad signal from the analysis module (102); the control module (103) further includes a control submodule (105) which, when acquiring the adjustment command, controls the air valve to open as a group using multiple start signals.

10. The raw tape forming device according to claim 9, characterized in that: The extension block (42) of the lower portion is also provided with a temperature detector. The acquisition module (101) obtains the temperature of the extension block (42) detected by the temperature detector as an actual temperature value. The analysis module (102) obtains the actual temperature value and analyzes whether it is greater than a threshold value. If so, a cooling instruction is issued. If not, a heating instruction or a pending instruction is issued. When the control module (103) obtains the cooling instruction, the back pressure mechanism (9) is controlled to pass cold air into the housing. When the control module (103) obtains the heating instruction, the switch is controlled to be turned on, and the fan is controlled to be turned on to input the hot air in the outer cover (311) into the extension block (42).

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