Simple paper tearing device for manufacturing car-mounted speaker

Abstract

The utility model relates to a simple paper tearing equipment for vehicle-mounted loudspeaker manufacturing, including lifting support, be installed with horizontal displacement adjusting device on lifting support, be installed with mounting device on horizontal displacement adjusting device, be installed with vertical guide rod on mounting device, be installed with execution drive device on vertical guide rod, be connected with clamping device on execution drive device, clamping device includes the locating block connected with vertical guide rod, still includes the movable clamp block connected with execution drive device, in the paper tearing state, the locating block and movable clamp block are in the engagement state to hold the release paper for vehicle-mounted loudspeaker manufacturing. Therefore, the clamping device adopts the setting with antiskid line or trapezoidal tooth, and the engagement structure of locating block and movable clamp block is matched, can avoid the damage of release paper caused by too large clamping force, and can prevent the slide caused by insufficient clamping force. At the same time, the gap sensor real -time detection clamping interval, further ensure that the clamping action is accurate in place, improve the stability of the paper tearing process.

Description

Technical Field

[0001] This utility model relates to a paper tearing device, and more particularly to a simple paper tearing device for manufacturing vehicle loudspeakers. Background Technology

[0002] In the manufacturing process of automotive speakers, adhesive tape is used to bond various types of foam. During tape application, release paper attached to the adhesive surface needs to be removed. Existing technology provides an automatic release paper removal device, which integrates an end-plate gripping mechanism and a release paper removal mechanism within a frame, using suction cups and clamping components to achieve automated removal. However, this device focuses on the end-plate scenario of new energy batteries and does not design a flexible clamping structure for the special material of automotive speaker release paper. Furthermore, the support frame lacks height adjustment, making it difficult to adapt to speaker production lines of different heights. Simultaneously, existing technology also discloses a paper-tearing mechanism that uses a cylinder to drive a guide rail and moving parts to operate the paper-tearing clamp for removing release paper from the battery cell tab bending device. However, this mechanism is fixedly connected to the frame, lacking flexibility in horizontal and vertical position adjustment, and cannot adapt to automotive speaker production lines with different layouts. Moreover, its clamping components lack pressure adjustment and gap detection mechanisms, easily causing damage or detachment of thin release paper.

[0003] In the field of circuit board processing, an automatic film-removing machine has also been disclosed. It achieves horizontal movement of the film-removing table through a dual-guide rail structure and is mainly used for removing protective films from flexible printed circuit boards. However, its support structure is a support shaft of fixed height, which cannot be adapted and adjusted according to the release paper conveying height of the speaker production line, and it does not have an interlocking flexible clamping structure designed for the characteristics of the release paper.

[0004] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a simple paper-tearing device for manufacturing vehicle speakers, making it more industrially valuable. Utility Model Content

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a simple paper-tearing device for manufacturing vehicle speakers.

[0006] This utility model discloses a simple paper-tearing device for manufacturing vehicle-mounted speakers, comprising a lifting bracket, wherein: a lateral displacement adjustment device is mounted on the lifting bracket, a mounting device is mounted on the lateral displacement adjustment device, a vertical guide rod is mounted on the mounting device, an actuation drive device is mounted on the vertical guide rod, and a clamping device is connected to the actuation drive device; the lateral displacement adjustment device includes a lateral carrier plate connected to the lifting bracket, a linear motor and a guide rail are horizontally arranged on the lateral carrier plate, a slider is movably connected to the guide rail, and the mounting device is mounted on the slider, which is also connected to the drive end of the linear motor; The clamping device includes a positioning block connected to a vertical guide rod and a movable clamping block connected to an actuation drive device. When in the paper-tearing state, the positioning block and the movable clamping block are engaged to clamp the release paper for manufacturing vehicle speakers. The guide rail includes a mounting base connected to a transverse carrier plate. An I-shaped guide rail body is screwed onto the mounting base, and a POM contact surface is attached to the I-shaped guide rail body. A gap sensor, which is a laser sensor, is installed at the lower end of the vertical guide rod to detect the distance between the positioning block and the movable clamping block. The actuation drive device is a cylinder, and the driving end of the cylinder is connected to the movable clamping block.

[0007] Furthermore, in the aforementioned simple paper-tearing device for manufacturing vehicle speakers, the transverse carrier plate and the lifting bracket are connected by at least two spaced fastening bolts, the axis of the fastening bolts is perpendicular to the upper surface of the transverse carrier plate, and the distance between adjacent fastening bolts is not less than 1 / 3 of the length of the transverse carrier plate.

[0008] Furthermore, in the aforementioned simple paper-tearing device for manufacturing vehicle speakers, the clearance between the slider and the I-shaped guide rail body is 0.05mm-0.1mm, and the area of ​​the inner wall of the slider in contact with the POM contact surface is not less than 80% of the total area of ​​the inner wall of the slider.

[0009] Furthermore, in the aforementioned simple paper-tearing device for manufacturing vehicle speakers, the mounting device includes a mounting base connected to a slider. The slider is connected to the inner side of the mounting base via a pad. A connecting block is also mounted on the inner side of the mounting base. The connecting block is connected to the drive end of a linear motor via a keyway mating structure. A vertical guide rod is mounted on the mounting base via locking screws, and the locking screws are evenly distributed along the circumference of the vertical guide rod.

[0010] Furthermore, in the aforementioned simple paper-tearing device for manufacturing vehicle speakers, the vertical guide rod and the mounting base plate are provided with a plurality of weight-reducing holes. The weight-reducing holes are alternately distributed with elliptical holes and oblong holes. The major axis of the elliptical holes is parallel to the axis of the vertical guide rod, and the edge spacing between adjacent weight-reducing holes is not less than 5mm.

[0011] Furthermore, in the aforementioned simple paper-tearing device for manufacturing vehicle speakers, the pad is a rectangular block with a thickness of 3mm-5mm. The pad has several mounting holes, and connecting screws are connected inside the mounting holes. The connecting screws pass through the pad and the mounting base in sequence and are threadedly connected to the slider.

[0012] Furthermore, in the aforementioned simple paper-tearing device for manufacturing vehicle speakers, a positioning base is connected to the lower part of the vertical guide rod. The upper end of the positioning base is fixedly connected to the cylinder body of the cylinder via a flange, and the lower end of the positioning base is connected to the positioning block by welding or integral molding.

[0013] Furthermore, in the aforementioned simple paper-tearing device for manufacturing vehicle speakers, the movable clamping block is an L-shaped clamping block, and both the upper end face of the L-shaped clamping block and the lower end face of the positioning block are provided with anti-slip blocks with anti-slip textures; or, both the upper end face of the L-shaped clamping block and the lower end face of the positioning block are provided with toothed meshing blocks, the tooth pitch of the toothed surface is 0.5mm-1mm, and the tooth height is 0.3mm-0.8mm.

[0014] Furthermore, in the aforementioned simple paper-tearing device for manufacturing vehicle speakers, the detection end of the laser sensor faces the gap between the positioning block and the movable clamping block. A controller is electrically connected between the laser sensor and the cylinder. When the laser sensor detects that the gap between the positioning block and the movable clamping block is less than 2mm, the controller controls the cylinder to stop driving.

[0015] Furthermore, in the aforementioned simple paper-tearing device for manufacturing vehicle speakers, the lifting bracket includes at least two height-adjustable support columns. The side walls of the support columns are provided with adjustment holes distributed along the height direction. Positioning pins are inserted into the adjustment holes to fix the telescopic sections of the support columns. Positioning feet are installed at the bottom of the support columns, and the positioning feet are equipped with several locking bolts.

[0016] By means of the above solution, this utility model has at least the following advantages: 1. The equipment, through its height-adjustable lifting bracket and horizontally movable lateral displacement adjustment device, can achieve precise adjustment of both vertical height and horizontal position. It can be adapted to vehicle speaker manufacturing production lines of different heights and release paper conveying paths of different positions, meeting diverse production needs without replacing the entire equipment.

[0017] 2. The clamping device features anti-slip textures or trapezoidal teeth, working in conjunction with the engagement structure of the positioning block and the movable clamping block. This design prevents excessive clamping force from damaging the release paper, while also preventing insufficient clamping force from causing slippage. Furthermore, a gap sensor monitors the clamping distance in real time, further ensuring precise clamping and improving the stability of the paper-tearing process.

[0018] 3. It is equipped with weight reduction holes, and the guide rail is equipped with POM contact surface. The cylinder bracket is equipped with rubber buffer pad, which can reduce the overall weight of the equipment, reduce the running resistance, reduce vibration interference and wear between components, and significantly improve the stability of equipment operation and service life.

[0019] 4. When changing to release paper of different specifications, the positioning block and movable clamping block of the appropriate width can be directly replaced without disassembling and modifying the main structure of the equipment. The operation is simple when inspecting or replacing parts in the later stage, effectively shortening the changeover and maintenance time.

[0020] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a simple paper-tearing device used in the manufacture of car speakers.

[0022] Figure 2 yes Figure 1 A magnified view of a portion of the image.

[0023] The meanings of the labels in the figures are as follows.

[0024] Detailed Implementation The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0025] like Figures 1 to 2A simple paper-tearing device for manufacturing car speakers includes a lifting bracket 1, which serves as the basic support component of the device and is used to adapt to car speaker manufacturing production lines of different heights. The lifting bracket 1 includes at least two height-adjustable support columns, which employ a nested inner and outer tube structure. The outer tube is a fixed section, and the inner tube is a telescopic section. Thus, the inner tube can slide axially within the outer tube to adjust its height. The side wall of the outer tube has evenly distributed adjustment holes along the height direction, with a hole diameter of 8mm-10mm and a spacing of 20mm-30mm between adjacent adjustment holes. Simultaneously, a positioning pin with a diameter matching the hole is inserted into each adjustment hole. After the positioning pin passes through the corresponding hole in the outer and inner tubes, it is locked by a cotter pin to fix the telescopic section of the support column and prevent the inner tube from slipping during use. Furthermore, positioning feet are installed at the bottom of the support column. These feet are square blocks with a circular groove on their upper surface that matches the lower end of the inner tube of the support column. The lower end of the inner tube is inserted into the groove and secured with 2-3 circumferentially distributed set screws to ensure coaxiality between the support column and the positioning feet. As an optimization, waist-shaped mounting holes are provided at the four corners of the positioning feet. The length of these holes is parallel to the edge of the processing platform of the vehicle speaker manufacturing equipment, and locking bolts are inserted into these holes. This allows for fine-tuning of the positioning feet's horizontal position on the processing platform through the waist-shaped mounting holes, ensuring alignment of the entire equipment with the release paper conveying path of the production line. After tightening the locking bolts, the positioning feet fit tightly against the processing platform, preventing displacement during equipment operation.

[0026] Its unique feature lies in the fact that the lifting bracket 1 is equipped with a lateral displacement adjustment device, which, along with the clamping device used for subsequent installation, moves horizontally to precisely align the release paper at different positions on the production line. This device includes a lateral carrier plate 4, a linear motor 5, a guide rail 6, and a slider 7. Specifically, the lateral carrier plate 4 is a rectangular flat plate structure, connected to the lifting bracket 1 by at least two spaced fastening bolts. The number of fastening bolts is determined by the length of the lateral carrier plate 4; for example, two bolts are used for a length of 300mm-500mm, and three bolts are used for a length of 500mm-800mm. Simultaneously, the axis of the fastening bolts is perpendicular to the upper surface of the lateral carrier plate 4, and the spacing between adjacent fastening bolts is not less than 1 / 3 of the length of the lateral carrier plate 4. For a lateral carrier plate 4 with a length of 400mm, the spacing between adjacent bolts is set at 150mm to ensure uniform stress on the lateral carrier plate 4 and prevent deformation after long-term use. For certain special applications, the upper surface of the transverse carrier plate 4 is also provided with a positioning step that is compatible with the guide rail 6. The depth of the positioning step is 2mm-3mm, and the width is the same as the width of the mounting base of the guide rail 6. This is used to quickly position the guide rail 6 and improve assembly efficiency.

[0027] According to a preferred embodiment of this utility model, the guide rail 6 includes a mounting base connected to the transverse carrier plate 4, an I-shaped guide rail body, and a POM contact surface. The mounting base is a rectangular strip structure, with its lower end face fitting against the positioning step of the transverse carrier plate 4, and is fixed to the transverse carrier plate 4 by 4-6 screws evenly distributed along its length. Simultaneously, the I-shaped guide rail body is connected to the upper end face of the mounting base by screws. The upper and lower flanges of the I-shaped guide rail body are 20mm-25mm wide, and the web thickness is 8mm-10mm, ensuring structural strength. Furthermore, the POM contact surface is a long strip structure adapted to the outer contour of the I-shaped guide rail body, with a thickness of 1.5mm-2mm, and is adhered to the outer surface of the upper and lower flanges of the I-shaped guide rail body using a special adhesive. After adhesion, countersunk screws are used at both ends of the POM contact surface for auxiliary fixation to prevent long-term sliding from causing the POM contact surface to detach.

[0028] Furthermore, the slider 7 used in this invention is a "U"-shaped block structure fitted onto the I-shaped guide rail body, with its inner wall in contact with the POM (Polymer Oxide Material). After assembly, the clearance between the slider 7 and the I-shaped guide rail body is 0.05mm-0.1mm, and the area of ​​the inner wall of the slider 7 in contact with the POM is not less than 80% of the total area of ​​the inner wall of the slider 7, avoiding localized force that could cause sliding jamming. Simultaneously, the slider 7 has an outwardly extending limiting flange on its side, corresponding to the side edge of the guide rail 6 mounting base, preventing the slider 7 from detaching from the guide rail 6 when sliding along its length, thus improving safety. Furthermore, the linear motor 5 is mounted on one end of the transverse carrier plate 4 via a motor mount. The motor mount and the transverse carrier plate 4 are positioned by locating pins and then fixed with screws. The drive end (output shaft) of the linear motor 5 is connected to the slider 7 via a connecting block, ensuring that when the linear motor 5 starts, it can drive the slider 7 to move smoothly back and forth along the guide rail 6.

[0029] In practical implementation, the mounting device connects the slider 7 of the lateral displacement adjustment device to the vertical guide rod 2, and simultaneously transmits the driving force of the linear motor 5. It includes a mounting base 11, pads 12, and connecting blocks. Specifically, the mounting base 11 is a vertically arranged rectangular plate, with one side (inner side) fitting against the outer side of the slider 7. A rectangular pad 12 is provided at both the upper and lower ends of the inner side of the mounting base 11. The pad 12 is a rectangular block with a thickness of 3mm-5mm. The upper end face of the pad 12 is flush with the upper end face of the mounting base 11, and the lower end face is flush with the lower end face of the mounting base 11. Simultaneously, 2-3 mounting holes are provided on the pad 12, distributed along the height direction. These mounting holes are stepped holes, with a larger diameter at the upper end and a smaller diameter at the lower end. Connecting screws pass through these mounting holes. The shank of the connecting screw passes sequentially through the mounting hole of the pad 12 and the corresponding through hole of the mounting base 11, and then is threaded into the threaded hole on the outer side of the slider 7. The head of the connecting screw is embedded in the stepped hole of the pad 12 to prevent the head from protruding and affecting other components. By setting the pad 12, the vibration transmitted to the mounting base 11 during the movement of the slider 7 can be reduced, ensuring the stability of the vertical guide rod 2.

[0030] Meanwhile, a connecting block is installed at the center of the inner side of the mounting base 11. The connecting block has an "L"-shaped block structure, with one side fixed to the mounting base 11 by screws and the other side connected to the drive end of the linear motor 5. The connection between the connecting block and the drive end of the linear motor 5 adopts a "flat key fit" structure. A keyway is provided in the connecting hole of the connecting block, and a corresponding keyway is provided on the outer circular surface of the drive end of the linear motor 5. After the flat key is embedded in the two keyways, it is locked by a radially arranged anti-loosening screw to prevent the connecting block from rotating relative to the drive end, ensuring that the driving force of the linear motor 5 can be stably transmitted to the mounting base 11. In addition, a circular mounting hole is opened at the upper part of the outer side of the mounting base 11, and three circumferentially evenly distributed threaded holes are provided around the circular mounting hole. After the upper end of the vertical guide rod 2 is inserted into the circular mounting hole, it is fixed by three locking screws. After the shank of the locking screw passes through the threaded hole of the mounting base 11, it presses against the outer circular surface of the vertical guide rod 2 to achieve radial positioning of the vertical guide rod 2.

[0031] Furthermore, the vertical guide rod 2 used in this invention has a circular rod-shaped structure with several weight-reducing holes 13 on its body. These holes 13 are symmetrically distributed along the axis of the vertical guide rod 2, alternating between elliptical and oblong holes. Each weight-reducing hole 13 has a chamfered edge to prevent stress concentration and rod breakage. A square connecting seat is located at the lower end of the vertical guide rod 2. The lower end face of the connecting seat is used to install the positioning base. Two symmetrically distributed threaded holes are located on the side of the connecting seat for fixing the gap sensor 10. The actuator 3 can be a cylinder, which is mounted on the square connecting seat of the vertical guide rod 2 via a cylinder bracket. The cylinder bracket has a U-shaped structure; its upper end is fixed to the square connecting seat with screws, and its lower end has an arc-shaped groove adapted to the cylinder body. After the cylinder body is inserted into the arc-shaped groove, it is locked in place by two clamping screws. Furthermore, a 1mm-2mm thick rubber buffer pad is provided between the cylinder bracket and the square connecting seat to reduce the vibration transmitted to the vertical guide rod 2 during cylinder operation. The driving end (piston rod) of the cylinder is set downwards, and the end of the piston rod is connected to a connector by a thread. The lower end of the connector is fixed to the movable clamping block 9 to ensure that the movable clamping block 9 can move up and down when the cylinder extends or retracts.

[0032] Furthermore, a gap sensor 10 is installed on the side of the square connecting seat of the vertical guide rod 2. The gap sensor 10 is a laser displacement sensor, which is fixed by an "L"-shaped sensor bracket. Specifically, one end of the sensor bracket is threaded into the threaded hole of the square connecting seat, and the other end has an elongated adjustment hole. The sensor housing is fixed in the adjustment hole with screws. In this way, the detection angle of the sensor can be finely adjusted through the elongated adjustment hole to ensure that the detection end of the sensor is accurately aligned with the gap between the positioning block 8 and the movable clamping block 9, avoiding detection deviation. The signal output end of the sensor is electrically connected to the controller of an external device through a wire, and the signal output end of the controller is electrically connected to the solenoid directional valve of the cylinder.

[0033] The clamping device used in this invention is the core component for holding the release paper. It is adapted to the thin and fragile structure of the release paper for vehicle speakers. It includes a positioning block 8 and a movable clamping block 9, which achieve flexible and reliable clamping through an interlocking structure. During implementation, the positioning block 8 is installed at the lower end of the vertical guide rod 2 via a positioning base. The positioning base is a rectangular block structure, with its upper surface fitting against the lower surface of the square connecting seat of the vertical guide rod 2, and is fixed by four circumferentially distributed screws. Simultaneously, a rectangular groove is provided in the center of the lower surface of the positioning base. After the upper end of the positioning block 8 is inserted into the groove, it is fixed to the positioning base by welding or integral molding. When integrally molded, the positioning base and the positioning block 8 are made of the same aluminum alloy to ensure structural strength. Furthermore, the lower surface of the positioning block 8 is the clamping surface, which can be provided with anti-slip strip patterns or teeth. During processing, the anti-slip block 14 has a cross-grid pattern with a depth of 0.1mm-0.2mm and a spacing of 1mm-2mm to prevent damage to the release paper caused by excessively deep grooves. Furthermore, the toothed surface is trapezoidal with a tooth pitch of 0.5mm-1mm, a tooth height of 0.3mm-0.8mm, and a tooth surface inclination angle of 15°-20°, ensuring both anti-slip properties and no damage to the release paper during clamping. The movable clamping block 9 has an L-shaped block structure. The upper end of its vertical section is fixed to the cylinder connector, and the upper surface of its horizontal section is the clamping surface that mates with the positioning block 8, sharing the same clamping surface structure. When in the tearing state, the clamping surfaces of the positioning block 8 and the movable clamping block 9 are fully engaged (meshing). To accommodate release papers of different widths for automotive speakers, the clamping surface width of the positioning block 8 and the movable clamping block 9 is set to 35mm-40mm, and the two ends of the clamping surface are rounded to prevent the edges from scratching the release paper. Meanwhile, the controller can adjust the working pressure of the cylinder (set to 0.2MPa-0.4MPa) to control the clamping force, preventing excessive clamping force from damaging the release paper or insufficient clamping force from causing the release paper to slip off.

[0034] The working principle of this utility model is as follows: During the equipment debugging phase, adjust the height of the support column of the lifting bracket 1 according to the conveying height of the release paper in the vehicle speaker manufacturing production line—and remove the positioning pin. Then, pull the inner tube to slide along the outer tube until the height of the vertical guide rod 2 is aligned with the release paper height, insert the positioning pin, and lock the cotter pin. Fine-tune the overall horizontal position of the equipment through the waist-shaped mounting holes of the positioning feet. Finally, ensure that the clamping surface of the clamping device is aligned with the release paper conveying path, and tighten the locking bolts of the positioning feet.

[0035] During the parameter setting phase, the device's operating parameters are set via the controller. The linear motor 5's moving speed can be preset to 50mm / s-100mm / s, and the moving distance is set according to the tearing length of the release paper (typically 20mm-50mm). The cylinder's extension / retraction speed is set to 30mm / s-50mm / s, and the working pressure is 0.2MPa-0.4MPa. Simultaneously, the laser sensor's detection threshold is set to trigger the cylinder to stop when the gap is less than 2mm.

[0036] During the automatic paper-tearing stage, when the release paper in the production line is conveyed to the area below the clamping device, the photoelectric sensor of the production line sends a signal to the controller. The controller then activates the linear motor 5 of the lateral displacement adjustment device, driving the slider 7 to slide along the guide rail 6. This moves the clamping device to the position where the release paper will be clamped, close to the point where the release paper contacts the speaker component.

[0037] After the linear motor 5 stops, the controller starts the cylinder, and the piston rod of the cylinder extends upward, driving the movable clamping block 9 to move upward along the guide groove. At the same time, the laser sensor detects the distance between the positioning block 8 and the movable clamping block 9 in real time. When the distance is less than 2mm, the sensor sends a signal to the controller, and the controller controls the cylinder to stop extending. At this time, the clamping surfaces of the positioning block 8 and the movable clamping block 9 engage, clamping one end of the release paper.

[0038] The controller restarts linear motor 5, driving slider 7 to move in the opposite direction along guide rail 6, away from the speaker component. Lateral tension tears the release paper off the speaker component. After tearing, linear motor 5 stops, and the controller controls the cylinder piston rod to retract downwards. Movable clamp 9 resets, releasing the release paper, which falls into the collection box below, completing one tearing cycle. Then, linear motor 5 drives slider 7 to reset, awaiting the next tearing signal.

[0039] When changing the release paper of the vehicle speaker to different specifications, only the relevant parameters need to be adjusted through the controller. If the width of the release paper increases, the positioning block 8 and the movable clamping block 9 with a larger clamping surface can be replaced. If the thickness of the release paper increases, the working pressure of the cylinder can be appropriately increased to ensure reliable clamping.

[0040] Furthermore, the directions or positional relationships described in this utility model are based on the directions or positional relationships shown in the accompanying drawings. They are only for the purpose of facilitating the description of this utility model and simplifying the description, and are not intended to indicate or imply that the device or structure referred to must have a specific orientation, or to operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A simple paper-tearing device for manufacturing vehicle loudspeakers, comprising a lifting bracket, characterized in that: The lifting support is equipped with a lateral displacement adjustment device, the lateral displacement adjustment device is equipped with a mounting device, the mounting device is equipped with a vertical guide rod, the vertical guide rod is equipped with an execution drive device, and the execution drive device is connected to a clamping device. The lateral displacement adjustment device includes a lateral carrier plate connected to the lifting bracket. A linear motor and a guide rail are horizontally arranged on the lateral carrier plate. A slider is movably connected to the guide rail. A mounting device is installed on the slider. The mounting device is also connected to the drive end of the linear motor. The clamping device includes a positioning block connected to a vertical guide rod and a movable clamping block connected to an actuation drive device. When in the paper-tearing state, the positioning block and the movable clamping block are engaged to clamp the release paper for manufacturing vehicle speakers. The guide rail includes a mounting base connected to a transverse carrier plate, and an I-shaped guide rail body is screwed onto the mounting base. A POM contact surface is attached to the I-shaped guide rail body. A gap sensor, which is a laser sensor, is installed at the lower end of the vertical guide rod to detect the distance between the positioning block and the movable clamping block. The actuator is a cylinder, and the driving end of the cylinder is connected to the movable clamping block.

2. The simple paper-tearing device for manufacturing vehicle-mounted speakers according to claim 1, characterized in that: The transverse carrier plate and the lifting bracket are connected by at least two spaced fastening bolts. The axis of the fastening bolts is perpendicular to the upper surface of the transverse carrier plate, and the distance between adjacent fastening bolts is not less than 1 / 3 of the length of the transverse carrier plate.

3. The simple paper-tearing device for manufacturing vehicle speakers according to claim 1, characterized in that: The clearance between the slider and the I-shaped guide rail body is 0.05mm-0.1mm, and the area of ​​the inner wall of the slider in contact with the POM contact surface is not less than 80% of the total area of ​​the inner wall of the slider.

4. The simple paper-tearing device for manufacturing vehicle loudspeakers according to claim 1, characterized in that: The mounting device includes a mounting base plate connected to a slider. The slider is connected to the inner side of the mounting base plate via a pad. A connecting block is also mounted on the inner side of the mounting base plate. The connecting block is connected to the drive end of the linear motor via a keyway mating structure. A vertical guide rod is mounted on the mounting base plate via locking screws. The locking screws are evenly distributed along the circumference of the vertical guide rod.

5. The simple paper-tearing device for manufacturing vehicle speakers according to claim 4, characterized in that: The vertical guide rod and the mounting base plate are provided with a number of weight-reducing holes. The weight-reducing holes are alternately distributed with elliptical holes and oblong holes. The major axis of the elliptical holes is parallel to the axis of the vertical guide rod, and the edge spacing between adjacent weight-reducing holes is not less than 5mm.

6. The simple paper-tearing device for manufacturing vehicle-mounted speakers according to claim 4, characterized in that: The pad is a rectangular block with a thickness of 3mm-5mm. Several mounting holes are provided on the pad, and connecting screws are connected in the mounting holes. The connecting screws pass through the pad and the mounting base in sequence and are threadedly connected to the slider.

7. The simple paper-tearing device for manufacturing vehicle speakers according to claim 1, characterized in that: A positioning base is connected to the lower part of the vertical guide rod. The upper end of the positioning base is fixedly connected to the cylinder body of the cylinder through a flange. The lower end of the positioning base is connected to the positioning block by welding or integral molding.

8. The simple paper-tearing device for manufacturing vehicle loudspeakers according to claim 1, characterized in that: The movable clamping block is an L-shaped clamping block, and both the upper end face of the L-shaped clamping block and the lower end face of the positioning block are provided with anti-slip blocks with anti-slip textures; or, both the upper end face of the L-shaped clamping block and the lower end face of the positioning block are provided with toothed meshing blocks, the tooth pitch of the toothed surface is 0.5mm-1mm, and the tooth height is 0.3mm-0.8mm.

9. The simple paper-tearing device for manufacturing vehicle-mounted speakers according to claim 1, characterized in that: The detection end of the laser sensor faces the gap between the positioning block and the movable clamping block. The laser sensor is electrically connected to the cylinder and a controller is connected. When the laser sensor detects that the gap between the positioning block and the movable clamping block is less than 2mm, the controller controls the cylinder to stop driving.

10. The simple paper-tearing device for manufacturing vehicle loudspeakers according to claim 1, characterized in that: The lifting support includes at least two height-adjustable support columns. The side walls of the support columns are provided with adjustment holes distributed along the height direction. Positioning pins are inserted into the adjustment holes to fix the telescopic section of the support column. Positioning feet are installed at the bottom of the support columns, and the positioning feet are equipped with several locking bolts.

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