A device for flattening EPDM sheets

Abstract

The utility model discloses a kind of for EPDM sheet flattening device, including flat cutting machine mainframe, the outer surface side of flat cutting machine mainframe is fixedly connected with fixed seat, the fixed seat is installed with servo lifting assembly, the movable end of the servo lifting assembly is fixedly installed with cross seat, the bottom of the cross seat is fixedly embedded with two pressure sensors symmetrically.The utility model in the present application, by servo lifting assembly drive quick-release pressure roller applies controllable pressure to EPDM sheet, cooperate with horizontal shift component to drive adsorption workbench relative movement, realizes the automatic flattening operation of sheet.The pressure sensor real-time monitoring quick-release pressure roller pressure, ensure that flattening degree is uniform and stable, effectively solve the problem that traditional flat cutting machine only relies on suction fixed and is difficult to eliminate EPDM sheet deformation wrinkle.Significantly improve sheet flattening effect, guarantee the size of subsequent cutting process, avoid the thickness uneven quality problem caused by EPDM sheet uneven.

Description

Technical Field

[0001] This utility model relates to the field of sheet processing technology, and in particular to a flattening device for EPDM sheets. Background Technology

[0002] In the production and processing of EPDM (ethylene propylene diene monomer) sheets, it is usually necessary to cut thicker EPDM sheets into several thinner sheets to meet the needs of different applications. This process is typically completed using a sheet slitting machine, which uses a fully automatic digital control system to set cutting parameters and high-precision blades to slit the material.

[0003] However, existing EPDM sheets may have uneven surfaces due to wrinkles before cutting, which can cause the sheet to not adhere stably to the worktable when entering the slicing machine, affecting cutting accuracy. Although some flatbed slicing machines are equipped with suction devices to prevent material slippage, for materials like EPDM that have a certain degree of elasticity and flexibility, relying solely on suction to fix them may not completely eliminate cutting errors caused by material deformation and wrinkles, resulting in uneven thickness of the cut sheets and affecting cutting quality.

[0004] To address this, a flattening device for EPDM sheets is proposed. Utility Model Content

[0005] This invention is a device for flattening EPDM sheets, proposed to address the shortcomings of existing technologies.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a flattening device for EPDM sheets, wherein a fixed base is fixedly connected to one side of the outer surface of the main frame of the flattening machine, a servo lifting assembly is installed on the fixed base, a horizontal seat is fixedly installed on the movable end of the servo lifting assembly, two pressure sensors are symmetrically fixedly embedded at the bottom of the horizontal seat, the detection ends of the two pressure sensors are fixedly connected to mounting bases, and mounting sets are rotatably connected inside the two mounting bases.

[0007] Two quick-release pressure rollers are provided between the two mounting bases, and the quick-release pressure rollers are limited and inserted into the two adjacent mounting bases;

[0008] A drive assembly is installed at one end of the main frame of the flat cutting machine. A transverse component is installed between the movable end of the drive assembly and the main frame of the flat cutting machine. An adsorption worktable is fixedly installed on the top of the transverse component.

[0009] Furthermore, the servo lifting assembly includes a servo motor, which is fixedly mounted on the top of the fixed base. The drive end of the servo motor is fixedly connected to a first lead screw, which passes through the fixed base and is rotatably connected to it. A slide is threaded onto the outer surface of the first lead screw, and the slide is fixedly connected to the cross seat, so that the pressing height can be adjusted according to the sheet thickness.

[0010] Furthermore, both sides of the first lead screw are provided with smooth rods, which pass through the slide block and are slidably connected to it. The smooth rods effectively improve the stability of the slide block during lifting and lowering, and prevent swaying during lead screw transmission.

[0011] Furthermore, both quick-release pressure rollers include a roller body, which is disposed between two mounting seats. Both ends of the roller body are slidably connected to spline sleeves, and the mounting sleeves are slidably fitted onto the outer surface of the spline sleeves. The spline sleeves are fixed to the roller body by bolts. This quick-release structure facilitates the replacement of the roller body and improves maintenance efficiency.

[0012] Furthermore, the drive assembly includes a stepper motor and two synchronous pulleys. The drive shaft of the stepper motor passes through the main frame of the flat cutting machine and is fixedly connected to the adjacent synchronous pulleys. The two synchronous pulleys are meshed together by a synchronous belt. The synchronous belt drive mode operates smoothly and with low noise.

[0013] Furthermore, the transverse component includes a second lead screw, which is completely inserted through the main frame of the flat cutter and rotatably connected to the main frame of the flat cutter. The second lead screw is also fixedly connected to an adjacent synchronous pulley. A movable seat is threaded onto the outer surface of the second lead screw, and the movable seat is slidably connected to the main frame of the flat cutter. The main frame of the flat cutter has a limiting effect on the movable seat, ensuring the stability of the movable seat during movement.

[0014] Furthermore, the adsorption workbench includes a workbench body, which is fixedly installed on the top of the movable seat. The top of the workbench body has multiple adsorption holes that extend into the interior. Two high-pressure blowers are symmetrically fixedly installed on the bottom of the movable seat, and the exhaust ports of the high-pressure blowers are fixedly connected to the workbench body. The dual high-pressure blower design provides strong adsorption force, ensuring that the sheet remains completely fixed during the cutting process.

[0015] The beneficial effects of this utility model are:

[0016] In use, this utility model relates to an EPDM sheet flattening device. A servo lifting assembly drives a quick-release pressure roller to apply controllable pressure to the EPDM sheet. This, combined with a transverse component that moves the adsorption worktable, achieves automated sheet flattening. A pressure sensor monitors the pressure of the quick-release pressure roller in real time, ensuring uniform and stable flattening force. This effectively solves the problem of traditional flattening machines relying solely on suction to eliminate deformation and wrinkles in EPDM sheets. It significantly improves the sheet flattening effect, ensures dimensional accuracy in subsequent cutting processes, and avoids uneven thickness quality issues caused by uneven EPDM sheet surfaces. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 : Front view of this utility model;

[0019] Figure 2 Partial perspective view of this utility model;

[0020] Figure 3 The present utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 : A partial bottom view of this utility model.

[0022] The attached figures are labeled as follows:

[0023] 1. Flat cutting machine main frame; 2. Synchronous belt; 3. Synchronous pulley; 4. Roller; 5. Slide; 6. First lead screw; 7. Stepper motor; 8. Servo motor; 9. Fixed seat; 10. Guide rod; 11. Worktable body; 12. Cross seat; 13. Pressure sensor; 14. Mounting seat; 15. Assembly parts; 16. Spline sleeve; 17. Bolt; 18. Second lead screw; 19. Moving seat; 20. High-pressure blower. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 4 As shown, an EPDM sheet flattening device is disclosed, comprising a flat slitting machine main frame 1. A fixed base 9 is fixedly connected to one side of the outer surface of the flat slitting machine main frame 1. A servo lifting assembly is mounted on the fixed base 9. A cross seat 12 is fixedly mounted on the movable end of the servo lifting assembly. The servo lifting assembly includes a servo motor 8, which is fixedly mounted on the top of the fixed base 9. A first lead screw 6 is fixedly connected to the drive end of the servo motor 8. The thread helix angle of the first lead screw 6 is smaller than the friction angle, giving the first lead screw 6 a self-locking capability, which can prevent it from shifting due to vibration or load. The first lead screw 6 passes through the fixed seat 9 and is rotatably connected to it. The first lead screw 6 and the fixed seat 9 are connected by a bearing seat. The bearing seat body is fixedly connected to the fixed seat 9. The inner ring of the bearing inside the bearing seat is fixedly connected to the first lead screw 6. The outer surface of the first lead screw 6 is threaded with a slide 5, and the slide 5 is fixedly connected to the cross seat 12. Both sides of the first lead screw 6 are provided with smooth rods 10, and the smooth rods 10 pass through the slide 5 and are slidably connected to the slide 5. The smooth rods 10 have a limiting function on the slide 5, which can ensure the stability of the movement of the slide 5.

[0026] Two pressure sensors 13 are symmetrically fixedly embedded at the bottom of the horizontal seat 12. The pressure sensors 13 are mainly used to measure force. The model ZCB511E-W can be selected for reference. The detection ends of the two pressure sensors 13 are fixedly connected to the mounting base 14. The mounting base 14 and the mounting base 15 are rotatably connected inside the two mounting bases 14. The mounting base 14 and the mounting base 15 are connected by a bearing seat. The seat body of the bearing seat is fixedly connected to the mounting base 14. The inner ring of the bearing inside the bearing seat is rotatably connected to the mounting base 15.

[0027] Two quick-release pressure rollers are provided between the two mounting bases 14, and the quick-release pressure rollers are limited and inserted into the two adjacent mounting sets 15. Both quick-release pressure rollers include roller bodies 4, and the roller bodies 4 are set between the two mounting bases 14. Spline sleeves 16 are slidably connected to both ends of the roller body 4, and the mounting sets 15 are slidably sleeved on the outer surface of the spline sleeves 16. The spline sleeves 16 and the roller body 4 are fixed by bolts 17. Spline shafts are integrally designed at both ends of the roller body 4. The spline shafts slide with the spline sleeves 16, which has a good transmission effect. The spline shafts are provided with threaded holes that match the bolts 17, which facilitates the threaded connection between the bolts 17 and the spline shafts.

[0028] A drive assembly is installed at one end of the main frame 1 of the flat slicing machine. A transverse component is installed between the movable end of the drive assembly and the main frame 1. A suction worktable is fixedly installed on the top of the transverse component. The drive assembly includes a stepper motor 7 and two synchronous pulleys 3. The drive shaft of the stepper motor 7 passes through the main frame 1 and is fixedly connected to the adjacent synchronous pulley 3. A synchronous belt 2 is meshed between the two synchronous pulleys 3. The transverse component includes a second lead screw 18. The thread helix angle of the second lead screw 18 is smaller than the friction angle, giving the second lead screw 18 a self-locking capability to prevent it from shifting due to vibration or load. The second lead screw 18 completely passes through the main frame 1 and is rotatably connected to the main frame 1. The second lead screw 18 is fixedly connected to the main frame 1 through a bearing seat. The bearing housing is fixedly connected to the second lead screw 18. The bearing housing body is fixedly connected to the main frame 1 of the flat cutting machine. The second lead screw 18 is fixedly connected to the adjacent synchronous pulley 3. The outer surface of the second lead screw 18 is threaded with a movable seat 19. The movable seat 19 is slidably connected to the main frame 1 of the flat cutting machine. Two guide rails are symmetrically fixedly connected to the top of the main frame 1 of the flat cutting machine. The guide rails slide with the movable seat 19, realizing the sliding of the movable seat 19 and the main frame 1 of the flat cutting machine. The adsorption worktable includes a worktable body 11. The worktable body 11 is fixedly installed on the top of the movable seat 19. The top of the worktable body 11 has multiple adsorption holes that penetrate into the interior. Two high-pressure blowers 20 are symmetrically fixedly installed at the bottom of the movable seat 19. The exhaust ports of the high-pressure blowers 20 are fixedly connected to the worktable body 11.

[0029] Working principle: The pressure sensor 13, servo motor 8, stepper motor 7, and high-pressure fan 20 used in this application are all electrically connected to the PLC controller used in the flat cutting machine (this application is an improvement on a conventional flat cutting machine on the market, such as the BRJX-G suction flat cutting machine), which facilitates the control of the overall operation. The specific data analysis and processing involved to further realize the control function are methods that can be implemented by those skilled in the art based on common knowledge. These methods are not within the scope of this solution. The above description is only to illustrate the beneficial effects that can be achieved by this hardware structure improvement in conjunction with common knowledge.

[0030] During use, the EPDM sheet is placed on the adsorption worktable by a conveyor belt or manually. At this time, the high-pressure blower 20 is not yet started, the worktable is not adsorbing the sheet, and the sheet can be freely adjusted in position.

[0031] Next, the servo motor 8 starts, driving the first lead screw 6 to rotate, which in turn moves the slide 5 vertically downward along the guide rod 10, causing the cross seat 12 and the pressure sensor 13, mounting base 14, and quick-release pressure roller installed at its bottom to descend synchronously. When the roller 4 contacts the sheet surface, the pressure sensor 13 detects the downward pressure in real time and feeds the signal back to the PLC controller to ensure that the pressure applied by the roller 4 is constant, so as to adapt to EPDM sheets of different thicknesses.

[0032] Then, the stepper motor 7 starts, driving the second lead screw 18 to rotate via the synchronous pulley 3 and synchronous belt 2, causing the moving seat 19 to slide laterally along the main frame 1 of the flat slitting machine. Since the main body 11 of the worktable is fixed on the moving seat 19, the main body 11 of the worktable and the roller 4 generate relative movement: the roller 4 remains stationary, only applying vertical pressure; the main body 11 of the worktable drives the EPDM sheet to move laterally, causing the roller 4 to generate rolling friction flattening effect on the surface of the EPDM sheet, eliminating wrinkles. If the local resistance of the EPDM sheet is too high, such as severe wrinkles, the pressure sensor 13 detects the pressure value, and the lifting amount of the servo motor 8 can be dynamically adjusted through the PLC controller to achieve adaptive clamping force control.

[0033] After flattening, the high-pressure blower 20 is started, generating negative pressure through the adsorption holes on the main body of the workbench 11 to firmly adsorb the sheet onto the surface of the workbench and prevent it from shifting during cutting.

[0034] Roller 4 is automatically lifted by a servo lifting assembly to detach from the EPDM sheet surface, thus avoiding interference with subsequent cutting processes.

[0035] The roller body 4 can be quickly disassembled via the spline sleeve 16, bolt 17, and fitting 15. To disassemble, unscrew the bolt 17 and then pull the spline sleeve 16 out of the fitting 15.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A flattening device for EPDM sheets, comprising a flattening machine main frame (1), characterized in that: A fixed seat (9) is fixedly connected to one side of the outer surface of the main frame (1) of the flat cutting machine. A servo lifting assembly is installed on the fixed seat (9). A horizontal seat (12) is fixedly installed on the movable end of the servo lifting assembly. Two pressure sensors (13) are symmetrically fixedly embedded at the bottom of the horizontal seat (12). The detection ends of the two pressure sensors (13) are fixedly connected to mounting seats (14). The interiors of the two mounting seats (14) are rotatably connected to mounting accessories (15). Two quick-release pressure rollers are provided between the two mounting bases (14), and the quick-release pressure rollers are limited and inserted into the two adjacent mounting bases (15); A drive assembly is installed at one end of the main frame (1) of the flat cutting machine. A transverse component is installed between the movable end of the drive assembly and the main frame (1) of the flat cutting machine. An adsorption worktable is fixedly installed on the top of the transverse component.

2. The EPDM sheet flattening device according to claim 1, characterized in that: The servo lifting assembly includes a servo motor (8), which is fixedly installed on the top of the fixed base (9). The drive end of the servo motor (8) is fixedly connected to a first lead screw (6), which passes through the fixed base (9) and is rotatably connected to it. The outer surface of the first lead screw (6) is threaded with a slide (5), and the slide (5) is fixedly connected to the cross seat (12).

3. The EPDM sheet flattening device according to claim 2, characterized in that: The first lead screw (6) has a smooth rod (10) on both sides, and the smooth rod (10) passes through the slide (5) and is slidably connected to the slide (5).

4. The EPDM sheet flattening device according to claim 1, characterized in that: Both quick-release pressure rollers include a roller body (4), and the roller body (4) is disposed between two mounting seats (14). Both ends of the roller body (4) are slidably connected to spline sleeves (16), and the mounting sleeve (15) is slidably sleeved on the outer surface of the spline sleeve (16). The spline sleeve (16) and the roller body (4) are fixed together by bolts (17).

5. The EPDM sheet flattening device according to claim 1, characterized in that: The drive assembly includes a stepper motor (7) and two synchronous pulleys (3). The drive shaft of the stepper motor (7) passes through the main frame (1) of the flat cutting machine and is fixedly connected to the adjacent synchronous pulleys (3). The two synchronous pulleys (3) are meshed together by a synchronous belt (2).

6. The EPDM sheet flattening device according to claim 5, characterized in that: The transverse component includes a second lead screw (18), which is set through the main frame (1) of the flat cutter and is rotatably connected to the main frame (1). The second lead screw (18) is fixedly connected to the adjacent synchronous pulley (3). A movable seat (19) is threaded onto the outer surface of the second lead screw (18), and the movable seat (19) is slidably connected to the main frame (1) of the flat cutter.

7. The EPDM sheet flattening device according to claim 6, characterized in that: The adsorption workbench includes a workbench body (11), and the workbench body (11) is fixedly installed on the top of the movable seat (19). The top of the workbench body (11) is provided with a plurality of adsorption holes that penetrate into the interior. Two high-pressure blowers (20) are symmetrically fixedly installed on the bottom of the movable seat (19), and the exhaust ports of the high-pressure blowers (20) are fixedly connected to the workbench body (11).

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