Down-pressing type automatic foam laminating device

Abstract

The application belongs to the field of foam attaching equipment, in particular to a down-pressing type foam automatic attaching equipment, which comprises a machine main body; a conveying frame is fixed to the outside of the machine main body; a plurality of limiting grooves are arranged to limit a plurality of mobile phone cover plates, and an upper pressing plate is used to cover the top end of the limiting block to reduce the deviation and misalignment of the attached foam; a No. 1 electric cylinder output end drives a fixed plate to press down, the foam is pressed down and attached to the mobile phone cover plate, a sliding block is adjusted on the top end of the fixed plate to adjust the position of the attached foam, and the equipment is suitable for attaching foam to mobile phone cover plates of different models; a release film is fixed on two limiting discs to wind the foam, a limiting plate is clamped on the inner wall of the limiting block, and the equipment is suitable for attaching foam to mobile phone cover plates of different thicknesses; when the fixed plate is pressed down, the pressing block is extruded, gas lifts a plurality of top plates, a plurality of mobile phone cover plates are lifted from the bottom end, a plurality of extruding blocks extrude from above the mobile phone cover plate, and the attaching effect of the foam is enhanced.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of foam attaching equipment, in particular to a down-pressing type foam automatic attaching equipment. BACKGROUND

[0002] Foam is a kind of material foamed by plastic particles, and has the characteristics of light weight, bending freely and elasticity. There are many types of foam, such as PU foam, anti-static foam, conductive foam, flame-retardant foam, XPE foam and IXPE foam, etc.

[0003] When the back cover plate of the mobile phone is processed, foam needs to be attached to the surface of the back cover plate. Usually, manual attachment or automatic attachment by machine is adopted. Manual attachment of foam is low in efficiency, and most factories adopt down-pressing type foam attaching equipment for automatic attachment to realize mass processing.

[0004] When the foam is attached to the back cover plate of the mobile phone, the current down-pressing type foam attaching equipment mainly realizes down-pressing attachment of the foam. However, when the back cover plate is placed on the operation table, it is easy to be misaligned, which causes the attachment position of the foam to deviate, thereby affecting the subsequent processing operation and even causing economic loss.

[0005] Therefore, the application provides a down-pressing type foam automatic attaching equipment. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background.

[0007] The technical scheme adopted by the application to solve the technical problems is: the down-pressing type foam automatic attaching equipment comprises a machine main body; a conveying frame is fixedly connected to the outside of the machine main body; two groups of electric sliding blocks are slidably connected to the inner wall of the conveying frame; the two groups of electric sliding blocks are clamped and fixedly connected with limiting blocks; a plurality of limiting grooves are formed in the top end of the limiting block; a sliding plate is slidably connected to the inner side wall of the limiting block; an upper pressing plate is fixedly connected to the top end of the sliding plate; a plurality of mobile phone cover plates are placed on the top end of the limiting block and located in the plurality of limiting grooves; an attaching mechanism is arranged on the outside of the machine main body, and the attaching mechanism attaches the foam to the mobile phone cover plate; the machine main body is a processing equipment main body, a plurality of mobile phone cover plates are placed on the top end of the limiting block and located in the plurality of limiting grooves, the two sides of the upper pressing plate are held, the two sliding plates are respectively aligned and slid into the corresponding hole slots in the limiting block, the plurality of sliding plates are pressed by the upper pressing plate, and the plurality of limiting grooves are limited in position, the two groups of electric sliding blocks are automatically slid on the inner wall of the conveying frame through power supply, the plurality of mobile phone cover plates in the limiting block are driven to slide to the lower side of the attaching mechanism, the attaching mechanism automatically presses and attaches the foam, the function of automatically attaching the foam to the plurality of mobile phone cover plates is realized, and the deviation and misalignment of the mobile phone cover plate when the foam is attached are reduced.

[0008] Preferably, the fitting mechanism comprises a No. 1 electric cylinder, a fixed plate, a sliding block, an extrusion block and a winding assembly, the No. 1 electric cylinder is fixedly connected to the outside of the machine body; the fixed plate is fixedly connected to the output end of the No. 1 electric cylinder; the sliding block is slidingly connected to the top end of the fixed plate and is provided with two groups; a plurality of limiting holes are formed in the top end of the fixed plate; a plurality of bolts are threadedly connected to the inside of the fixed plate and penetrate through the sliding block; the extrusion block is fixedly connected to the bottom end of the sliding block; the winding assembly is arranged outside the machine body and is used for winding the foam; when the foam is fitted to the mobile phone cover plate of different models, the sliding block is slid and fixed in the fixed plate by the bolt, the position of the foam fitting of different models is adjusted, when the mobile phone cover plate is conveyed to the lower side of the fixed plate by the limiting block, the output end of the No. 1 electric cylinder is lowered, the two groups of extrusion blocks at the bottom end of the fixed plate are pressed down, the foam on the winding assembly is pressed and covered, passes through the upper pressing plate and is fitted on the mobile phone cover plate, and the foam is automatically fitted to the mobile phone cover plate of different models.

[0009] Preferably, the winding assembly comprises a No. 1 limiting disc, a No. 1 roller, a No. 2 roller and a No. 2 limiting disc; the inside of the machine body is provided with a servo motor; the No. 1 limiting disc is rotatably connected to the inside of the machine body; the No. 1 roller is rotatably connected to the inside of the machine body; the No. 2 roller is rotatably connected to the inside of the machine body; the No. 2 limiting disc is clamped to the output end of the servo motor; the outside of the No. 1 limiting disc is sleeved with a release film, and the other end of the release film is sleeved outside the No. 2 limiting disc; when the foam is fitted to the mobile phone cover plate, the two ends of the release film are fixed on the No. 1 limiting disc and the No. 2 limiting disc respectively, the servo motor is operated to drive the No. 2 limiting disc to rotate, the release film is pulled and wound from the No. 1 limiting disc to the No. 2 limiting disc, and the release film slides on the surfaces of the No. 1 roller and the No. 2 roller, a plurality of foams are adhered to the release film, the foams are rotated to the lower side of the release film with the No. 2 limiting disc, the plurality of foams are in a partitioned form and are spaced apart, when the foams are conveyed to the bottom end of the fixed plate, the output end of the No. 1 electric cylinder is pressed down to fit the foams on the mobile phone cover plate, and the winding of the release film is realized.

[0010] Preferably, the bottom end of the upper pressing plate is fixedly connected with two groups of limiting plates; the inner side walls of the limiting plates are slidingly connected with two groups of extrusion plates; a No. 1 spring is fixedly connected to the inside of the limiting plate, and one end of the No. 1 spring is fixedly connected with the extrusion plate; the two groups of extrusion plates in the inside of the limiting plate are pressed respectively, the two groups of extrusion plates extrude the two groups of No. 1 springs to shrink, the two groups of extrusion plates are folded to the middle part of the limiting plate, the two groups of limiting plates slide on the inner walls of the limiting blocks, the limiting height of the upper pressing plate is adjusted, the two groups of extrusion plates are released after being adjusted to the height suitable for the thickness of the mobile phone cover plate, the two groups of extrusion plates are extruded out of the limiting blocks by the two groups of No. 1 springs and are limited on the inner walls of the limiting blocks, and the limiting effect of the mobile phone cover plate of different thicknesses is realized.

[0011] Preferably, the limiting block has multiple sets of pressing blocks slidably connected inside; the bottom end of the pressing block is fixedly connected to an elastic element, and one end of the elastic element is fixedly connected to the inside of the limiting block; a venting cavity is opened inside the limiting block; multiple sets of top plates are slidably connected inside the limiting block, and the multiple sets of top plates are respectively located below multiple sets of phone cover plates; by using the fixing plate to press down with the output end of the first electric cylinder, the two sets of extrusion blocks press the foam on the release film close to the phone cover plate, and the fixing plate simultaneously presses the pressing block into the inside of the limiting block, the pressing block slides inside the limiting block to compress the gas inside the limiting block, and disperses the gas from the venting cavity to the multiple sets of top plates, lifting the multiple sets of top plates to the bottom end of the phone cover plate, and the top plates lift the phone cover plate from the bottom end of the phone cover plate, which, together with the fixing plate pressing down the foam to fit the top end of the phone cover plate, plays a role in squeezing the foam from top to bottom, enhancing the pressing effect on the foam.

[0012] Preferably, the limiting block has multiple sets of push rods slidably connected inside; the bottom end of each push rod is fixedly connected to a second spring, and one end of the second spring is fixedly connected to the inside of the limiting block; the push rods are slidably installed inside the limiting block in cooperation with the second spring. When the upper pressure plate is installed, the upper pressure plate presses against the multiple sets of push rods and exerts pressure on the second spring. When the clamping of the pressure plate is disassembled, the multiple sets of push rods lift the upper pressure plate, thereby increasing the distance between the upper pressure plate and the limiting block, making it easier to remove the upper pressure plate. At the same time, multiple sets of pressing blocks can be pressed to push out multiple sets of mobile phone covers, which also makes it easier to remove multiple sets of mobile phone covers.

[0013] Preferably, a second electric cylinder is fixedly connected inside the conveyor frame; a pressure plate is fixedly connected to the output end of the second electric cylinder; a sliding rod is fixedly connected to the bottom end of the pressure plate, and the sliding rod is slidably connected inside the conveyor frame; after multiple sets of mobile phone cover plates are pasted, the limiting block slides to the position below the pressure plate, the output end of the second electric cylinder presses down, causing the pressure plate to press against the position above the upper pressure plate, and the sliding rod slides on the inner wall of the conveyor frame to press multiple sets of foam again for a long time, reducing the possibility of foam falling off after pasting.

[0014] Preferably, multiple sets of rubber blocks are fixed to the bottom end of the pressure plate; an infrared transmitter is fixed to the bottom end of the pressure plate; and an infrared receiver is fixed to the top end of the upper pressure plate. The infrared transmitter senses the infrared receiver, and when the infrared receiver slides below the infrared transmitter with the limiting block, the infrared receiver receives the signal emitted by the infrared transmitter and sends a signal to the second electric cylinder. The output end of the second electric cylinder drives the pressure plate to press down, and the multiple sets of rubber blocks correspond to multiple sets of foam covering, further improving the tightness of the foam bonding.

[0015] Preferably, a support base is fixedly connected to the outside of the first electric cylinder; a camera is fixedly connected to the bottom of the support base; the camera is mounted below the support base to monitor the foam on the release film. When the foam on the release film is found to have fallen off or been completely applied, the machine operation is stopped to reduce the occurrence of mobile phone cover plates without foam. It can also measure the number of products after foam application, which is convenient for subsequent statistics.

[0016] Preferably, the first limiting plate has multiple sets of partitions slidably connected inside; the bottom end of each partition is fixedly connected to a second elastic element, and one end of the second elastic element is fixedly connected to the inside of the first limiting plate; the first limiting plate is sleeved on the first output end, and the two sets of partitions are supported and pushed out by two sets of second elastic elements respectively, thereby expanding the external limiting of the release film and reducing the possibility of the release film slipping off during the winding process.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The automatic foam bonding device of the present invention uses a set of limiting blocks with multiple limiting grooves on the top to place multiple sets of mobile phone cover plates in the limiting grooves for limiting. An upper pressure plate is used to press on the top of the limiting block to limit the multiple sets of mobile phone cover plates, reducing the possibility of misalignment during foam bonding. The output end of the first electric cylinder drives the fixed plate to press down, pressing the foam onto the mobile phone cover plate, achieving the effect of automatic foam bonding. The sliding block on the top of the fixed plate adjusts the position of the pressed foam, which is suitable for bonding foam to different models of mobile phone cover plates. The release film is fixed on two sets of limiting plates to roll up and press the foam on the release film. The limiting plate slides and engages with the inner wall of the limiting block, which is suitable for bonding foam to mobile phone cover plates of different thicknesses. When the fixed plate presses down, it squeezes the pressing block, and the gas lifts up multiple sets of top plates and multiple sets of mobile phone cover plates from the bottom. With the help of multiple sets of extrusion blocks pressing from above the mobile phone cover plates, the bonding effect of the foam is enhanced.

[0019] 2. The automatic foam bonding device of the present invention uses multiple sets of push rods that slide inside the limiting block. After the limiting plate is disassembled and snapped in place, the multiple sets of push rods, under the elastic force of multiple sets of No. 2 springs, push up the upper pressure plate, making it easy to remove the upper pressure plate. In conjunction with pressing multiple sets of pressing blocks, it is easy to pick up multiple sets of mobile phone cover plates. An infrared transmitter and an infrared receiver are brought close together to send a signal to the No. 2 electric cylinder. The output end of the No. 2 electric cylinder drives the pressure plate to press down. The pressure plate presses against the top of the limiting block. In conjunction with multiple sets of rubber blocks, the foam after bonding is squeezed to enhance the tightness of the foam bonding. A camera is mounted at the bottom of the support base to facilitate the monitoring of the quantity and drop of foam. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the fixing plate in this invention;

[0023] Figure 3 This is a schematic diagram of the limiting block in this invention;

[0024] Figure 4 This is a schematic diagram of the upper pressure plate in this invention;

[0025] Figure 5 This is a schematic diagram of the top plate structure in this invention;

[0026] Figure 6 This is a schematic diagram of the pressure plate in this invention;

[0027] Figure 7 This is a cross-sectional view of the structure of the No. 1 limiting disk in this invention.

[0028] In the diagram: 1. Machine body; 11. Conveyor frame; 12. Electric slider; 13. Limiting block; 14. Limiting groove; 15. Upper pressure plate; 16. Slide plate; 17. Mobile phone cover plate; 2. Electric cylinder No. 1; 21. Fixing plate; 22. Sliding block; 23. Extrusion block; 3. Limiting disc No. 1; 31. Roller No. 1; 32. Roller No. 2; 33. Limiting disc No. 2; 34. Release film; 4. Limiting plate; 41. Extrusion plate; 5. Pressing block; 51. Elastic element No. 1; 52. Top plate; 6. Top rod; 7. Electric cylinder No. 2; 71. Pressure plate; 72. Slide rod; 8. Rubber block; 81. Infrared transmitter; 82. Infrared receiver; 9. Support base; 91. Camera; 92. Partition; 93. Elastic element No. 2. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0030] Example 1

[0031] like Figures 1 to 5As shown in the embodiment of the present invention, an automatic foam bonding device for downward pressing includes a machine body 1; a conveyor frame 11 is fixedly connected to the outside of the machine body 1; two sets of electric sliders 12 are slidably connected to the inner wall of the conveyor frame 11; the two sets of electric sliders 12 clamp and fix a limiting block 13, and the limiting block 13 is square in shape; multiple limiting grooves 14 are opened at the top of the limiting block 13; a sliding plate 16 is slidably connected to the inner side wall of the limiting block 13, and two sets of sliding plates 16 are provided; an upper pressure plate 15 is fixedly connected to the top of the sliding plate 16; multiple sets of mobile phone cover plates 17 are placed at the top of the limiting block 13 and are located at the multiple sets of limiting grooves 14; a bonding mechanism is provided on the outside of the machine body 1, and the bonding mechanism bonds the foam to the mobile phone cover plate 17; when bonding foam to the back cover of a mobile phone, since the current downward pressing foam bonding device mainly realizes the downward pressing bonding of the foam, but When the back cover is placed on the operating table, it is easy to misalign, which will cause the foam bonding position to shift, thus affecting subsequent processing operations and even causing economic losses. Therefore, the specific implementation of this embodiment of the invention is to place multiple sets of mobile phone cover plates 17 on the top of the limiting block 13 and at multiple sets of limiting grooves 14 on the processing equipment body of the machine body 1. Hold the two sides of the upper pressure plate 15 and slide the two sets of sliding plates 16 into the corresponding holes and grooves of the limiting block 13 respectively. The upper pressure plate 15 presses the multiple sets of sliding plates 16 together, and with the limiting grooves 14, the two sets of electric sliders 12 are energized and automatically slide on the inner wall of the conveyor frame 11, driving the multiple sets of mobile phone cover plates 17 in the limiting block 13 to slide to the bottom of the bonding mechanism. The bonding mechanism automatically presses down to bond the foam, which plays the role of limiting the multiple sets of mobile phone cover plates 17 and automatically bonding the foam, reducing the situation of the mobile phone cover plates 17 shifting and misaligning when bonding the foam.

[0032] like Figures 1 to 2As shown, the bonding mechanism includes a first electric cylinder 2, a fixed plate 21, a sliding block 22, an extrusion block 23, and a winding assembly. The first electric cylinder 2 is fixedly connected to the outside of the machine body 1; the fixed plate 21 is fixedly connected to the output end of the first electric cylinder 2; the sliding block 22 is slidably connected to the top end of the fixed plate 21, and two sets are provided; the top end of the fixed plate 21 has multiple sets of limiting holes; the internal threads of the fixed plate 21 are connected to multiple sets of bolts, and the bolts penetrate the sliding block 22; the extrusion block 23 is fixedly connected to the bottom end of the sliding block 22; the shape of the extrusion block 23 corresponds to the shape of the foam; The winding assembly is located outside the machine body 1 and is used to wind up the foam. When attaching foam to different models of mobile phone cover plates 17, the sliding block 22 is slidable and fixed in the fixed plate 21 with bolts to adjust the attachment position of different models of foam. When the mobile phone cover plate 17 is conveyed to the bottom of the fixed plate 21 by the limit block 13, the output end of the first electric cylinder 2 extends downward, driving the two sets of extrusion blocks 23 at the bottom of the fixed plate 21 to press down, which will press the foam on the winding assembly, pass through the upper pressure plate 15 and attach it to the mobile phone cover plate 17, thus playing the role of automatically attaching foam to different models of mobile phone cover plates 17.

[0033] like Figure 1 As shown, the winding assembly includes a first limiting disc 3, a first roller 31, a second roller 32, and a second limiting disc 33; a servo motor is installed inside the machine body 1; the first limiting disc 3 is rotatably connected to the inside of the machine body 1; the first roller 31 is rotatably connected to the inside of the machine body 1; the second roller 32 is rotatably connected to the inside of the machine body 1; the second limiting disc 33 is engaged with the output end of the servo motor; a release film 34 is sleeved on the outside of the first limiting disc 3, and the other end of the release film 34 is sleeved on the outside of the second limiting disc 33; when attaching foam to the mobile phone cover 17, the two ends of the release film 34 are... The ends are respectively fixed on the first limiting plate 3 and the second limiting plate 33. The servo motor drives the second limiting plate 33 to rotate. The release film 34 is pulled and rolled up from the first limiting plate 3 to the second limiting plate 33. The release film 34 slides against the surfaces of the first roller 31 and the second roller 32. Multiple sets of foam adhere to the release film 34. With the second limiting plate 33, the foam rotates to the bottom of the release film 34. The multiple sets of foam are spaced apart. When the foam is conveyed to the bottom of the fixed plate 21, the output end of the first electric cylinder 2 presses down to adhere the foam to the mobile phone cover plate 17, which plays the role of rolling up the release film 34.

[0034] like Figures 1 to 4As shown, two sets of limiting plates 4 are fixedly connected to the bottom end of the upper pressure plate 15; two sets of extrusion plates 41 are slidably connected to the inner side wall of the limiting plate 4; a first spring is fixedly connected inside the limiting plate 4, and one end of the first spring is fixedly connected to the extrusion plate 41; when mobile phone covers 17 of different thicknesses are placed on the limiting block 13, in order to limit the thicker mobile phone cover 17 to the top of the limiting block 13, the two sets of extrusion plates 41 inside the limiting plate 4 are pressed respectively. The two sets of extrusion plates 41 compress the two sets of first springs to retract, and the two sets of extrusion plates 41 are brought together towards the middle of the limiting plate 4. The two sets of limiting plates 4 slide on the inner wall of the limiting block 13. The limiting height of the upper pressure plate 15 is adjusted to a height suitable for the thickness of the mobile phone cover 17. After that, the two sets of extrusion plates 41 are released. The two sets of extrusion plates 41 are pushed out by the two sets of first springs and limited to the inner wall of the limiting block 13, which achieves the effect of limiting the mobile phone cover 17 of different thicknesses.

[0035] like Figures 1 to 5 As shown, the limiting block 13 has multiple sets of pressing blocks 5 slidably connected inside; the bottom end of the pressing block 5 is fixedly connected to a first elastic element 51, and one end of the first elastic element 51 is fixedly connected to the inside of the limiting block 13; the limiting block 13 has a ventilation cavity inside; the limiting block 13 has multiple sets of top plates 52 slidably connected inside, and the multiple sets of top plates 52 are respectively located below multiple sets of mobile phone cover plates 17; when the foam is pressed onto the mobile phone cover plate 17 by the squeezing block 23, the fixing plate 21 is pressed down by the output end of the first electric cylinder 2, and the two sets of squeezing blocks 23 press away from the cover plate 17. The foam on the mold 34 is close to the phone cover 17. At the same time, the fixing plate 21 presses the pressing block 5 into the interior of the limiting block 13. The pressing block 5 slides inside the limiting block 13 to squeeze the gas inside the limiting block 13 and disperses the gas from the ventilation cavity to the multiple sets of top plates 52. The multiple sets of top plates 52 are lifted to the bottom of the phone cover 17. The top plates 52 lift the phone cover 17 from the bottom of the phone cover 17. Together with the fixing plate 21, the foam is pressed down to fit the top of the phone cover 17, which plays a role in squeezing the foam from top to bottom and enhancing the pressing effect on the foam.

[0036] like Figures 1 to 3 As shown, multiple sets of push rods 6 are slidably connected inside the limiting block 13; a second spring is fixedly connected to the bottom end of the push rod 6, and one end of the second spring is fixedly connected to the inside of the limiting block 13; when the upper pressure plate 15 presses against the top of the limiting block 13, the upper pressure plate 15 is relatively tightly attached to the limiting block 13, making it difficult to remove the upper pressure plate 15. Therefore, the push rods 6 are slidably installed inside the limiting block 13 in cooperation with the second spring. When the upper pressure plate 15 is installed, the upper pressure plate 15 presses against multiple sets of push rods 6 and exerts pressure on the second spring. After the snap-fit ​​of the pressing plate 41 is disassembled, the multiple sets of push rods 6 lift the upper pressure plate 15, thereby increasing the distance between the upper pressure plate 15 and the limiting block 13, making it easier to remove the upper pressure plate 15. At the same time, multiple sets of pressing blocks 5 can be pressed to push out multiple sets of mobile phone cover plates 17, which also makes it easier to remove multiple sets of mobile phone cover plates 17.

[0037] like Figures 1 to 6 As shown, a second electric cylinder 7 is fixedly connected inside the conveyor frame 11; a pressure plate 71 is fixedly connected to the output end of the second electric cylinder 7; a sliding rod 72 is fixedly connected to the bottom end of the pressure plate 71, and the sliding rod 72 is slidably connected inside the conveyor frame 11; when the foam is pressed onto the mobile phone cover plate 17, since the foam is only pressed once by the fixing plate 21, it is easy to have a loose fit. Therefore, after multiple sets of mobile phone cover plates 17 are pasted, the limiting block 13 slides to the position below the pressure plate 71, the output end of the second electric cylinder 7 presses down, causing the pressure plate 71 to press onto the position above the upper pressure plate 15, and the sliding rod 72 slides on the inner wall of the conveyor frame 11 to press multiple sets of foam again for a long time, reducing the possibility of the foam falling off after pasting.

[0038] Multiple sets of rubber blocks 8 are fixedly connected to the bottom end of the pressure plate 71; an infrared transmitter 81 is fixedly connected to the bottom end of the pressure plate 71; an infrared receiver 82 is fixedly connected to the top end of the upper pressure plate 15; when the pressure plate 71 presses down on the foam bonded to the mobile phone cover 17, the infrared transmitter 81 senses the infrared receiver 82. When the infrared receiver 82 slides below the infrared transmitter 81 with the limiting block 13, the infrared receiver 82 receives the signal emitted by the infrared transmitter 81 and sends a signal to the second electric cylinder 7. The output end of the second electric cylinder 7 drives the pressure plate 71 to press down, and the multiple sets of rubber blocks 8 correspond to the multiple sets of foam to press and cover, further improving the tightness of the foam bonding.

[0039] like Figures 1 to 2 As shown, a support base 9 is fixedly connected to the outside of the first electric cylinder 2; a camera 91 is fixedly connected to the bottom of the support base 9; when the foam on the release film 34 is attached to the mobile phone cover plate 17, since the foam on the release film 34 is prone to falling off or being completely attached, the support base 9 is used to fix the first electric cylinder 2 to the outside, and the camera 91 is installed below the support base 9 to monitor the foam on the release film 34. When it is found that the foam on the release film 34 has fallen off or been completely attached, the machine operation is stopped to reduce the occurrence of the mobile phone cover plate 17 without foam, and the number of products after foam attachment can be measured for subsequent statistics.

[0040] Example 2

[0041] like Figure 7As shown in the comparative embodiment one, another embodiment of the present invention is as follows: multiple sets of partitions 92 are slidably connected inside the first limiting disk 3; a second elastic element 93 is fixedly connected to the bottom end of the partition 92, and one end of the second elastic element 93 is fixedly connected to the inside of the first limiting disk 3; when the number of release film 34 disks is too large, it is easy to cause unstable assembly when installed on the first limiting disk 3, resulting in the release film 34 slipping, scattering and tangling during the winding process. Therefore, the first limiting disk 3 is sleeved on the first output end, and the two sets of partitions 92 are supported and pushed out by the two sets of second elastic elements 93 respectively, expanding the external limiting of the release film 34 and reducing the slippage of the release film 34 during the winding process.

[0042] During the working process, when applying foam to the back cover of a mobile phone, the main body of the processing equipment 1 places multiple sets of mobile phone cover plates 17 on the top of the limiting block 13 and at the multiple limiting grooves 14. Holding the two sides of the upper pressure plate 15, the two sets of sliding plates 16 are aligned and slid into the corresponding holes and grooves of the limiting block 13. The upper pressure plate 15 presses the multiple sets of sliding plates 16 together, which, together with the multiple limiting grooves 14, limits the movement. The two sets of electric sliders 12 are energized and automatically slide on the inner wall of the conveyor frame 11, driving the multiple sets of mobile phone cover plates 17 in the limiting block 13 to slide below the first electric cylinder 2. The sliding block 22 is slidable and fixed in the fixing plate 21 with bolts. The positions of different types of foam are adjusted, and the two ends of the release film 34 are fixed on the first limiting plate 3 and the second limiting plate 33 respectively. The servo motor drives the second limiting disk 33 to rotate, and the release film 34 is pulled and rolled up from the first limiting disk 3 to the second limiting disk 33. The release film 34 slides against the surfaces of the first roller 31 and the second roller 32, and multiple sets of foam adhere to the release film 34. As the second limiting disk 33 rotates, the foam moves to the bottom of the release film 34. The multiple sets of foam are spaced apart. When the foam is conveyed to the bottom of the fixed plate 21, the output end of the first electric cylinder 2 presses down, causing the two sets of extrusion blocks 23 at the bottom of the fixed plate 21 to press down, pressing the foam on the release film 34 and allowing it to pass through the upper pressure plate 15 and adhere to the phone cover 17. This automatically adheres foam to different models of phone cover 17, reducing the risk of foam damage during the application process. When the foam is misaligned during assembly, press the two sets of extrusion plates 41 inside the limiting plate 4. The two sets of extrusion plates 41 compress the two sets of No. 1 springs, causing the two sets of extrusion plates 41 to converge towards the center of the limiting plate 4. The two sets of limiting plates 4 slide on the inner wall of the limiting block 13. Adjust the limiting height of the upper pressure plate 15 to a height suitable for the thickness of the phone cover 17, and then release the two sets of extrusion plates 41. The two sets of extrusion plates 41 are pushed out by the two sets of No. 1 springs and limited to the inner wall of the limiting block 13, thus limiting the thickness of the phone cover 17. With the fixed plate 21 pressing down with the output end of the No. 1 electric cylinder 2, the two sets of extrusion blocks 23 press the foam on the release film 34 close to the phone cover 17. At the same time, the fixed plate 21 presses the pressing block 5 into the interior of the limiting block 13. The gas inside the sliding limit block 13 is compressed and dispersed from the vent cavity to multiple sets of top plates 52, which lift the multiple sets of top plates 52 to the bottom of the phone cover 17. The top plates 52 lift the phone cover 17 from the bottom, and together with the fixing plate 21, they press the foam against the top of the phone cover 17, which compresses the foam from top to bottom and enhances the compressing effect. The top rod 6 is slidably installed inside the limit block 13 with the second spring. When the upper pressure plate 15 is installed, the upper pressure plate 15 presses against the multiple sets of top rods 6 and compresses the second spring. When the clamping of the compression plate 41 is removed, the multiple sets of top rods 6 lift the upper pressure plate 15, which increases the distance between the upper pressure plate 15 and the limit block 13, making it easier to remove the upper pressure plate 15.Simultaneously, multiple sets of pressing blocks 5 can be pressed to push out multiple sets of mobile phone cover plates 17, making it easy to remove them. After the multiple sets of mobile phone cover plates 17 are bonded, the infrared transmitter 81 senses the infrared receiver 82. When the infrared receiver 82 slides below the infrared transmitter 81 with the limiting block 13, it receives the signal emitted by the infrared transmitter 81 and sends a signal to the second electric cylinder 7. The output end of the second electric cylinder 7 drives the pressure plate 71 to press down. The slide rod 72 slides on the inner wall of the conveyor frame 11 to press the multiple sets of foam again for a long time, reducing the possibility of the foam falling off after bonding. Multiple sets of rubber blocks 8 correspond to the multiple sets of foam, further improving the tightness of the foam bonding. The support base 9 is used to fix it to the outside of the first electric cylinder 2. The camera 91 is mounted below the support base 9 to monitor the foam on the release film 34. When the foam on the release film 34 is found to have fallen off or been completely applied, the machine stops operating, reducing the chance of the phone cover 17 being without foam. It also allows for the measurement of the number of products after foam application, facilitating subsequent statistics. When the number of release film 34 rolls is too large, unstable assembly may occur at the output end of the first limiting plate 3, causing the release film 34 to slip, scatter, and become entangled during winding. Therefore, the first limiting plate 3 is fitted onto the first output end, and the two sets of partitions 92 are supported and pushed out by two sets of second elastic elements 93, expanding the external limit on the release film 34 and reducing the chance of slippage during winding.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure-type automatic foam bonding device, characterized in that: The machine includes a main body (1); a conveyor frame (11) is fixedly connected to the outside of the main body (1); two sets of electric sliders (12) are slidably connected to the inner wall of the conveyor frame (11); the two sets of electric sliders (12) clamp and fix a limiting block (13); multiple limiting grooves (14) are opened at the top of the limiting block (13); a slide plate (16) is slidably connected to the inner side wall of the limiting block (13); an upper pressure plate (15) is fixedly connected to the top of the slide plate (16); multiple mobile phone cover plates (17) are placed at the top of the limiting block (13) and located at the multiple limiting grooves (14); a bonding mechanism is provided on the outside of the main body (1) to bond foam to the mobile phone cover plate (17); The bonding mechanism includes a first electric cylinder (2), a fixed plate (21), a sliding block (22), an extrusion block (23), and a winding assembly. The first electric cylinder (2) is fixed to the outside of the machine body (1). The fixed plate (21) is fixed to the output end of the first electric cylinder (2). The sliding block (22) is slidably connected to the top of the fixed plate (21), and two sets are provided. Two sets of limiting plates (4) are fixedly connected to the bottom end of the upper pressure plate (15); two sets of extrusion plates (41) are slidably connected to the inner side wall of the limiting plate (4); a No. 1 spring is fixedly connected inside the limiting plate (4), and one end of the No. 1 spring is fixedly connected to the extrusion plate (41). The conveyor frame (11) is internally fixed with a second electric cylinder (7); the output end of the second electric cylinder (7) is fixed with a pressure plate (71); the bottom end of the pressure plate (71) is fixed with multiple sets of rubber blocks (8); the bottom end of the pressure plate (71) is fixed with an infrared transmitter (81); the top end of the upper pressure plate (15) is fixed with an infrared receiver (82).

2. The automatic foam bonding equipment according to claim 1, characterized in that: The top of the fixed plate (21) has multiple sets of limiting holes; the fixed plate (21) has multiple sets of bolts connected to its internal threads, and the bolts pass through the sliding block (22); the extrusion block (23) is fixed to the bottom of the sliding block (22); the winding assembly is set outside the machine body (1), and the winding assembly is used to wind up the foam.

3. The automatic foam bonding device according to claim 1, characterized in that: The winding assembly includes a first limiting disc (3), a first roller (31), a second roller (32), and a second limiting disc (33); a servo motor is installed inside the machine body (1); the first limiting disc (3) is rotatably connected to the inside of the machine body (1); the first roller (31) is rotatably connected to the inside of the machine body (1); the second roller (32) is rotatably connected to the inside of the machine body (1); the second limiting disc (33) is snapped onto the output end of the servo motor; a release film (34) is sleeved on the outside of the first limiting disc (3), and the other end of the release film (34) is sleeved on the outside of the second limiting disc (33).

4. The automatic foam bonding device according to claim 1, characterized in that: The limiting block (13) has multiple sets of pressing blocks (5) slidably connected inside; the bottom end of the pressing block (5) is fixedly connected to a first elastic element (51), and one end of the first elastic element (51) is fixedly connected to the inside of the limiting block (13); the limiting block (13) has a ventilation cavity inside; the limiting block (13) has multiple sets of top plates (52) slidably connected inside, and the multiple sets of top plates (52) are respectively located below the multiple sets of mobile phone cover plates (17).

5. The automatic foam bonding device according to claim 1, characterized in that: The limiting block (13) has multiple sets of push rods (6) slidably connected inside; the bottom end of the push rod (6) is fixed with a second spring, and one end of the second spring is fixed inside the limiting block (13).

6. The automatic foam bonding device according to claim 1, characterized in that: The bottom end of the pressure plate (71) is fixedly connected to a slide rod (72), and the slide rod (72) is slidably connected inside the conveyor frame (11).

7. The automatic foam bonding device according to claim 1, characterized in that: The first electric cylinder (2) is fixedly connected to a support base (9); a camera (91) is fixedly connected to the bottom end of the support base (9).

8. The automatic foam bonding device according to claim 3, characterized in that: The first limiting plate (3) has multiple sets of partitions (92) slidably connected inside; the bottom end of the partition (92) is fixedly connected to the second elastic element (93), and one end of the second elastic element (93) is fixedly connected to the inside of the first limiting plate (3).

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