Plastic sheet placing and screening device
By designing a plastic sheet placement screening device, and using the radioactive photoelectric switch and blower duct to screen out the plastic sheet with the correct direction, the problem of wrong attachment position of the sponge pad caused by the wrong delivery of the feeding equipment is solved, and the production quality of the plastic sheet is improved.
Patent Information
- Application Number
- CN202422167804.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-04
AI Technical Summary
During the plastic sheet production process, the feeding equipment may send the plastic sheet to the vibration conveyor in the wrong direction, causing the sponge pad to be attached to the wrong position on the plastic sheet, resulting in bad products and reducing production quality.
A plastic sheet placement screening device is designed, and the direction of the plastic sheet is detected by a radioactive photoelectric switch. The plastic sheet with the wrong direction is blown into the square cylinder through a blowing duct, and vibrate and transported to the collection frame. The plastic sheet with the correct direction is screened for sponge padding.
Effectively screen out plastic sheets with the correct orientation to avoid sponge pads incorrectly and improve the production quality of plastic sheets.
Smart Images
Figure CN223045215U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of in-vehicle microphone production, and specifically, to a plastic sheet placing and screening device. Background Technique
[0002] With the continuous development of automobiles, automobiles are becoming more and more intelligent. An automobile not only serves as a means of transportation for users, but also has the function of a platform to realize the information interaction between users and vehicles. To achieve human-machine interaction, it is necessary to collect the voices of users through microphones. The in-vehicle microphone is mainly used for functions such as Bluetooth phone answering and navigation voice playback.
[0003] During the production of a plastic sheet, which is a kind of component of the in-vehicle microphone, a sponge pad needs to be attached to a predetermined hole position on the plastic sheet. The attachment of the sponge pad is completed by a dedicated attachment device. When using the attachment device to attach the sponge pad to the plastic sheet, it is necessary to first use a feeding device to feed the plastic sheet onto a vibrating conveyor, and then the vibrating conveyor transports the plastic sheet to a specified position in the attachment device. However, when the feeding device is operating, there is a possibility of feeding the plastic sheet onto the vibrating conveyor in the wrong direction. After the vibrating conveyor transports the plastic sheet with the wrong direction to the attachment device, the attachment device will attach the sponge to the wrong position on the plastic sheet, resulting in defective products and reducing the production quality of the plastic sheet. In view of this, we propose a plastic sheet placing and screening device. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a plastic sheet placing and screening device to solve the problems raised in the above background technique.
[0005] To achieve the above purpose, one of the purposes of the utility model is to provide a plastic sheet placing and screening device, including a processing table. A linear vibrating feeder is fixedly installed on the upper surface of the processing table. A conveying frame is fixedly installed above the linear vibrating feeder. One end of the conveying frame is provided with a screening mechanism. The screening mechanism includes a docking frame fixedly connected to one side of the conveying frame. A through groove is opened on one side of the docking frame. A blowing air pipe is fixedly connected to the position corresponding to the through groove on the other side of the docking frame. A square tube is fixedly connected to one side of the docking frame. An opening is opened on one side of the square tube, and the opening communicates the through groove with the inside of the square tube. An opposed photoelectric switch is arranged on the docking frame, and a support assembly is arranged on the square tube.
[0006] As a further improvement of this technical solution, the bottom surface inside the square tube is an inclined surface, and the position on the inclined surface of the square tube that is farther away from the conveying frame is lower in height. The opening is located above the bottom surface inside the square tube, and one end of the square tube away from the conveying frame extends outside the processing table.
[0007] As a further improvement of the technical solution, the support assembly includes two clamping blocks respectively fixedly connected to the side wall of the square cylinder and the top of the processing table. A rubber pad is fixedly connected to the inner wall of the clamping block. A support rod is slidably connected to the inner walls of the two rubber pads. The clamping block squeezes and fixes the support rod through the rubber pad.
[0008] As a further improvement of the technical solution, there are three sets of opposed photoelectric switches. The opposed photoelectric switch consists of a transmitter, a receiver and a detection device. The transmitter and the receiver are both electrically connected to the detection device. The detection device is fixedly installed on the upper surface of the processing table. The receivers of two sets of opposed photoelectric switches are fixedly installed above the docking frame, and the two transmitters corresponding to the two receivers are fixedly installed at the bottom of the docking frame.
[0009] As a further improvement of the technical solution, the transmitter of one set of opposed photoelectric switches is installed on the side wall of the clamping block located above. The receiver corresponding to the transmitter is installed on one side of the docking frame. The through groove is located at the position between the transmitter and the receiver of the opposed photoelectric switch. The square cylinder is made of colorless and transparent acrylic material, so that the light beam emitted by the transmitter penetrates the square cylinder and is received by the corresponding receiver.
[0010] As a further improvement of the technical solution, slideways for conveying plastic sheets are provided at the tops of the conveying frame and the docking frame, and the two slideways are communicated with each other. Chamfers are provided at both side edges of the through groove close to the slideway.
[0011] As a further improvement of the technical solution, a small hole allowing the light beam to pass through is provided at the position between the receiver and the transmitter at the bottom of the docking frame, and the small hole is communicated with the inside of the slideway.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] During the process of vibrating and conveying the plastic sheets through the docking frame and the conveying frame, if the opposed photoelectric switch detects that the direction of the plastic sheet is incorrect, the air blowing pipe blows the plastic sheet with the incorrect direction into the inside of the square cylinder through the through groove and the opening. The plastic sheets in the square cylinder are then vibrated and conveyed outwards and fall into the collection box for convenient centralized treatment. In this way, the plastic sheets with the correct feeding direction are screened out for the sponge pad pasting work, avoiding the defective products of the plastic sheets with incorrect sponge pasting positions and improving the production quality of the plastic sheets. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is the overall structural schematic diagram of the present utility model;
[0015] Figure 2 is the screening structural schematic diagram of the present utility model;
[0016] Figure 3 Side-sectional perspective view of the square tube of the present utility model;
[0017] Figure 4 Bottom-up perspective view of the docking frame of the present utility model;
[0018] Figure 5 Structural schematic diagram of the support assembly of the present utility model.
[0019] The meanings of the various reference numerals in the figure are as follows:
[0020] 1. Processing table; 2. Linear vibrating feeder; 3. Conveyor frame;
[0021] 4. Screening mechanism; 41. Docking frame; 42. Through groove; 43. Square tube; 44. Opening; 45. Air blowing pipe; 46. Opposite-type photoelectric switch;
[0022] 5. Support assembly; 51. Clamping block; 52. Rubber pad; 53. Support rod. Specific embodiments
[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0024] Embodiment 1
[0025] Please refer to Figures 1-5As shown in the figure, this embodiment provides a plastic sheet placement and screening device, including a processing table 1. A linear vibration feeder 2 is fixedly installed on the upper surface of the processing table 1. The linear vibration feeder 2 is a known structure and will not be elaborated here. A conveying frame 3 is fixedly installed above the linear vibration feeder 2. A screening mechanism 4 is arranged at one end of the conveying frame 3. The screening mechanism 4 includes a docking frame 41 fixedly connected to one side of the conveying frame 3. Slideways for conveying plastic sheets are provided at the tops of both the conveying frame 3 and the docking frame 41, and the two slideways are connected. When the device is in use, a feeding device is externally connected to one side of the docking frame 41, and a sponge attaching device is externally connected to one side of the conveying frame 3. The linear vibration feeder 2 is started, and the linear vibration feeder 2 drives the conveying frame 3 and the docking frame 41 to vibrate. After the feeding device feeds the plastic sheets into the slideway on the docking frame 41, the docking frame 41 and the conveying frame 3 vibrate and convey the plastic sheets, causing the plastic sheets to horizontally move along the inner wall of the slideway in a direction away from the docking frame 41, and conveying the plastic sheets into the sponge attaching device to attach sponges. When the feeding device is working, there is a problem that the plastic sheets are fed onto the docking frame 41 in the wrong direction, causing the sponge attaching device to attach the sponges to the wrong positions on the plastic sheets. To solve this problem, the screening mechanism 4 is provided. The screening mechanism 4 can remove the plastic sheets with the wrong feeding direction on the docking frame 41, so that the plastic sheets with the wrong direction will not move onto the conveying frame 3, and then screen out the plastic sheets with the correct feeding direction for the sponge pad attaching work.
[0026] In order to remove the plastic sheets with the wrong direction from the docking frame 41 and prevent the plastic sheets with the wrong direction from being attached with sponges, the following further details the remaining structure of the screening mechanism 4. A through groove 42 is provided on one side of the docking frame 41. Chamfers are provided on both side edges of the through groove 42 close to the slideway. On the other side of the docking frame 41 at the position corresponding to the through groove 42, a blowing air pipe 45 is fixedly connected. One end of the blowing air pipe 45 is externally connected to an air storage tank, and an electromagnetic valve is installed between the air outlet of the air storage tank and the blowing air pipe 45. A square cylinder 43 is fixedly connected to one side of the docking frame 41. An opening 44 is provided on one side of the square cylinder 43. The opening 44 connects the through groove 42 with the inside of the square cylinder 43. The opening 44 is located above the inner bottom surface of the square cylinder 43. One end of the square cylinder 43 away from the conveying frame 3 extends outside the processing table 1. A collection box for collecting plastic sheets is pre-placed below this end of the square cylinder 43. A pair of photoelectric switches 46 are arranged on the docking frame 41. The pair of photoelectric switches 46 and the electromagnetic valve are both controlled by an external computer device.
[0027] When the transmissive photoelectric switch 46 detects that the placement direction of the plastic sheet on the docking frame 41 is incorrect, it sends an electrical signal to an external computer device. The external computer device activates the solenoid valve, enabling the compressed air in the air storage tank to be blown to one side of the plastic sheet through the air blowing pipe 45, and blowing the plastic sheet into the interior of the square cylinder 43 through the through slot 42 and the opening 44. When the docking frame 41 vibrates, it drives the square cylinder 43 to vibrate synchronously, causing the plastic sheet in the square cylinder 43 to be vibrated and conveyed to the outside. Under the action of gravity, the plastic sheet falls centrally into the interior of the collection frame, preventing the plastic sheets with incorrect directions from being attached with sponges, avoiding defective products with sponges attached at incorrect positions, and improving the production quality of the plastic sheets.
[0028] In order to enable the plastic sheet in the square cylinder 43 to move away from the conveying frame 3 when the docking frame 41 drives the square cylinder 43 to vibrate, the bottom surface inside the square cylinder 43 is an inclined plane. The position on the inclined plane of the square cylinder 43 that is farther away from the conveying frame 3 has a lower height. By increasing the conveying inclination angle of the plastic sheet in the square cylinder 43, the vibrating square cylinder 43 cannot convey the plastic sheet towards the conveying frame 3. Instead, it helps the plastic sheet overcome the frictional resistance between it and the inner wall of the square cylinder 43 and slide downward, causing the plastic sheet to slide into the interior of the collection frame.
[0029] In order to enhance the connection strength between the square cylinder 43 and the docking frame 41 and ensure that the square cylinder 43 can be driven to vibrate synchronously when the docking frame 41 vibrates, a support assembly 5 is provided on the square cylinder 43. The structure of the support assembly 5 is refined as follows. The support assembly 5 includes two clamping blocks 51 respectively fixedly connected to the side wall of the square cylinder 43 and the top of the processing table 1. A rubber pad 52 is fixedly connected to the inner wall of the clamping block 51. A support rod 53 is slidably connected to the inner walls of the two rubber pads 52. The clamping block 51 squeezes and fixes the support rod 53 through the rubber pad 52. When the docking frame 41 drives the square cylinder 43 to vibrate, the distance between the inner wall of the clamping block 51 and the support rod 53 changes, and the rubber pad 52 located between the inner wall of the clamping block 51 and the outer wall of the support rod 53 undergoes elastic deformation accordingly, enabling the support rod 53 to play a certain supporting role between the square cylinder 43 and the processing table 1 and reducing the possibility of loosening of the connection between the square cylinder 43 and the processing table 1.
[0030] The transmissive photoelectric switch 46 used in the screening mechanism 4 has three groups. The transmissive photoelectric switch 46 is a prior art and consists of a transmitter, a receiver, and a detection device. Among them, both the transmitter and the receiver are electrically connected to the detection device. The detection device is fixedly installed on the upper surface of the processing table 1. The receivers of two groups of the transmissive photoelectric switches 46 are fixedly installed above the docking frame 41, and the two transmitters corresponding to the two receivers are fixedly installed at the bottom of the docking frame 41. A small hole allowing the light beam to pass through is opened at the position between the receiver and the transmitter at the bottom of the docking frame 41, and the small hole is communicated with the inside of the slideway. The transmitter of the remaining group of the transmissive photoelectric switches 46 is installed on the side wall of the clamping block 51 located above, and the receiver corresponding to the transmitter is installed on one side of the docking frame 41. The through groove 42 is located at the position between the transmitter and the receiver of the transmissive photoelectric switch 46. The square tube 43 is made of colorless and transparent acrylic material, so that the light beam emitted by the transmitter penetrates the square tube 43 and is received by the corresponding receiver. When the plastic sheet is vibrated and conveyed to the position between the receiver and the transmitter on both sides of it, blocking the light beam emitted by the transmitter from being received by the receiver, when the transmissive photoelectric switch 46 detects the plastic sheet, the computer device judges whether the direction of the plastic sheet is correct according to the results obtained by the other two groups of transmissive photoelectric switches 46 at this time. If the plastic sheet blocks the light beams of the other two groups of transmissive photoelectric switches 46, the direction of the plastic sheet is correct and it can be vibrated and conveyed to the conveying frame 3. If the plastic sheet cannot block the light beams of the other two groups of transmissive photoelectric switches 46, the direction of the plastic sheet is incorrect and it will be blown into the inside of the square tube 43.
[0031] To sum up, the working principle of this solution is as follows: Start the linear vibrating feeder 2, so that the linear vibrating feeder 2 drives the conveying frame 3 and the docking frame 41 to vibrate. Place the plastic sheet on the docking frame 41, and the docking frame 41 vibrates and conveys the plastic sheet. When the plastic sheet is conveyed to the position between the transmitter and the receiver of the transmissive photoelectric switch 46, the transmissive photoelectric switch 46 detects whether the direction of the plastic sheet is incorrect. If the direction is correct, the docking frame 41 and the conveying frame 3 relay to vibrate and convey the plastic sheet into the sponge attaching device. If the direction is incorrect, the air blowing pipe 45 ejects high-speed air flow, and the plastic sheet is blown into the inside of the square tube 43 through the through groove 42 and the opening 44. The plastic sheet in the square tube 43 is then vibrated and conveyed to the outside, and then concentrated and dropped into the inside of the collection box under the action of gravity, thereby screening out the plastic sheets with the correct feeding direction for sponge pad attaching work, avoiding defective plastic sheets with incorrect sponge attaching positions, and improving the production quality of the plastic sheets.
[0032] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only preferred examples of the present utility model, and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. A plastic sheet placement and screening device, comprising a processing table (1), characterized in that: A linear vibration feeder (2) is fixedly mounted on the upper surface of the processing table (1), a conveying frame (3) is fixedly mounted on the upper side of the linear vibration feeder (2), a screening mechanism (4) is arranged at one end of the conveying frame (3), the screening mechanism (4) comprises a docking frame (41) fixedly connected to one side of the conveying frame (3), a through slot (42) is provided on one side of the docking frame (41), a blow pipe (45) is fixedly connected to a position corresponding to the through slot (42) on the other side of the docking frame (41), a square tube (43) is fixedly connected to one side of the docking frame (41), an opening (44) is provided on one side of the square tube (43), the opening (44) connects the through slot (42) with the inside of the square tube (43), a beam-type photoelectric switch (46) is arranged on the docking frame (41), and a supporting assembly (5) is arranged on the square tube (43).
2. The plastic sheet placement and screening device according to claim 1, characterized in that: The bottom surface of the square tube (43) is an inclined surface, and the farther away from the conveying frame (3) the position on the inclined surface of the square tube (43) is, the lower the height is. The opening (44) is located above the bottom surface of the square tube (43), and one end of the square tube (43) away from the conveying frame (3) extends to the outside of the processing table (1).
3. The plastic sheet placement and screening device according to claim 1, characterized in that: The support assembly (5) comprises two clamping blocks (51) respectively fixedly connected to the side wall of the square cylinder (43) and the top of the processing table (1); the inner wall of the clamping block (51) is fixedly connected to a rubber pad (52); the inner walls of the two rubber pads (52) are slidably connected to support rods (53); the clamping block (51) squeezes and fixes the support rods (53) through the rubber pads (52).
4. The plastic sheet placement and screening device according to claim 1, characterized in that: The said opposing photoelectric switches (46) are provided with three groups, and the opposing photoelectric switches (46) are composed of a transmitter, a receiver and a detection device, wherein the transmitter and the receiver are both electrically connected to the detection device, and the detection device is fixedly mounted on the upper surface of the processing table (1), wherein the receivers of two groups of opposing photoelectric switches (46) are fixedly mounted above the docking frame (41), and the two transmitters corresponding to the two receivers are fixedly mounted at the bottom of the docking frame (41).
5. The plastic sheet placement and screening device according to claim 4, characterized in that: The transmitter of one group of the beam-type photoelectric switches (46) is installed on the side wall of the clamping block (51) located above, and the receiver corresponding to the transmitter is installed on one side of the docking frame (41). The through groove (42) is located between the transmitter and the receiver of the beam-type photoelectric switch (46). The square tube (43) is made of colorless and transparent acrylic material, so that the light beam emitted by the transmitter penetrates the square tube (43) and is received by the corresponding receiver.
6. The plastic sheet placement and screening device according to claim 4, characterized in that: The tops of the conveying frame (3) and the docking frame (41) are both provided with slideways for conveying plastic sheets, the two slideways are connected, and the two side edges of the through groove (42) close to the slideways are both provided with chamfers.
7. The plastic sheet placement and screening device according to claim 6, characterized in that: A small hole allowing the light beam to pass through is provided at the bottom of the docking frame (41) between the receiver and the transmitter, and the small hole is communicated with the inside of the slideway.