Card slot grinding equipment for card reader production

Abstract

The present invention discloses a card slot grinding processing equipment for card reader production, which relates to the grinding technology field of card reader, including a grinding drive component, the grinding drive component includes a hydraulic cylinder installed on external production equipment, and the output end of the hydraulic cylinder is fixedly connected with a cross plate, one end of the cross plate is symmetrically installed with a power box, and each end of the power box is installed with a drive shaft, the outer wall of the drive shaft is provided with a grinding component for grinding four groups of end faces of the card slot, and the inner side of the grinding component and one side of the grinding component are installed with a second grinding component for grinding the fifth end face of the card slot. The present invention realizes the effect of composite grinding through grinding components and scraper cleaning components, and greatly improves the grinding effect of the card slot. In addition, through the movement of the grinding device and the cooperation of the scraper, the powder generated by grinding can be scraped out of the inner wall of the card slot to achieve the effect of automatic cleaning.

Description

Technical Field

[0001] The invention relates to the technical field of grinding of card readers, in particular to a card slot grinding processing equipment for producing card readers. Background Art

[0002] A card reader is a card reading device. Due to the large variety of card types, the meaning of card reader covers a wide range. According to the different card types, it can be divided into IC card readers, including contact IC cards, which follow the ISO7816 interface standard; contactless IC card readers, which follow the ISO14443 interface standard, and long-distance card readers, which follow the ETC national standard GB20851 interface standard. Memory cards are widely used in smart phones and cameras. In a broad sense, smart phones and cameras are also card readers. According to the type of memory card, they are divided into CF card readers, SM card readers, PCMICA card readers and memory stick readers, etc. There are also dual-slot card readers that can use two or more cards at the same time; according to the port type, they can be divided into serial port card readers, parallel port card readers and USB card readers.

[0003] In the prior art, a card reader in most cases refers to a device that can identify and read the internal information of a card. The device is divided into two types, one is a card reader with a card slot, and the other is a card reader without a card slot. For a card reader with a card slot, during the production process, its shell is integrally injection molded, that is, the card reader shell after injection molding has a built-in card slot, and then the production of the card reader is completed by only installing the electronic equipment and related components inside the shell and installing the bottom cover onto the card reader shell.

[0004] In the above records, the card slot is injection molded in one time, but its outer wall still has injection impurities and burrs, that is, the outer wall of the card slot of the newly produced card reader is rough. Therefore, the card slot needs to be ground to improve its roughness and smoothness, which not only helps to insert the card, but also can protect the card during the sliding process. For this reason, we propose a card slot grinding equipment for card reader production. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a card slot grinding and processing equipment for card reader production to solve the technical problems mentioned in the above background.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a card slot grinding and processing equipment for card reader production, including a grinding drive component, the grinding drive component includes a hydraulic cylinder installed on external production equipment, and the output end of the hydraulic cylinder is fixedly connected to a cross plate, one end of the cross plate is symmetrically installed with a power box, and each end of the power box is installed with a driving shaft, the side away from the driving component is provided with a card slot to be processed, and the interior of the card slot is provided with a first end face, a second end face, a third end face, a fourth end face and a fifth end face, the outer wall of the driving shaft is provided with a grinding component for grinding the first end face, the second end face, the third end face and the fourth end face, and the inner end of the grinding component is installed with a second grinding component for grinding the fifth end face of the card slot, and the inner end face of the cross plate is also installed with a scraper cleaning component.

[0007] By adopting the above technical solution, the card slot grinding operation is realized, and through grinding in multiple directions, the effect of composite grinding is achieved, which greatly improves the grinding effect of the card slot. In addition, through the movement of the grinding device and the cooperation of the scraper, the powder generated by grinding can be scraped out of the inner wall of the card slot, thereby achieving the effect of automatic cleaning.

[0008] The present invention is further configured such that an auxiliary support plate is provided between each two groups of the driving shafts, and the auxiliary support plate is slidably connected to the outer walls of the two groups of driving shafts, the outer wall of each group of the auxiliary support plates is fixedly connected to an auxiliary connecting rod connected to the power box, so that the auxiliary support plate is fixedly limited, the outer walls of the two groups of auxiliary support plates are also fixedly connected to auxiliary connecting plates, so that the auxiliary support plates are further fixedly limited, a driving sprocket connected to an external driving source is installed inside the power box, and a driven sprocket connected to the driving sprocket through a transmission chain is also installed inside the power box, and the ends of the driving sprocket and the driven sprocket are connected to the end of the driving shaft through a coupling.

[0009] By adopting the above technical solution, the driving effect on the driving shaft is achieved, that is, the driving effect on the grinding belt is achieved.

[0010] The present invention is further configured as follows: the grinding assembly includes a grinding belt which is slidably sleeved with the outer wall of the driving shaft and is laterally limited and reset, and the inner end face of the grinding belt is provided with two groups of slide grooves extending into the interior of the grinding belt, a force-bearing block is installed inside each group of the slide grooves, and the force-bearing blocks are provided in multiple groups and are evenly distributed on the inner wall of the slide groove, the force-bearing blocks in the two groups of the slide grooves are arranged in opposite directions so that the extrusion directions of the two groups of the force-bearing blocks are different, the outer wall of the driving shaft is fixed with multiple groups of equidistant and annularly distributed mounting plates, and the end face of each group of the force-bearing blocks is fixedly installed with an extrusion block, the extrusion block and the force-bearing block are eccentrically arranged when they are not in contact, that is, the central axis of the extrusion block overlaps with the central axis of the force-bearing block, so that the extrusion block can squeeze the force-bearing block.

[0011] By adopting the above technical solution, the four groups of end faces of the slot are compositely polished, and polishing in multiple directions is combined, so that the polishing quality and efficiency are improved.

[0012] The present invention is further configured such that the second grinding assembly includes a grinding plate arranged on the inner side of the end of the grinding belt, and a grinding layer is arranged on the outer wall end face of the grinding plate, a cavity is opened inside the grinding plate, and a first auxiliary groove is opened on the inner end face of the grinding plate, a driving half gear is installed inside the cavity, and a connecting shaft connected to the end of the driving shaft is installed at the end of the driving half gear, a driven frame plate fixedly connected to the inner wall of the cavity is arranged on the outer side of the connecting shaft, and the tooth wall of the inner wall end face of the driven frame plate is adapted to the gear teeth of the driving half gear.

[0013] By adopting the above technical solution, the fifth end face of the slot can be polished.

[0014] The present invention is further configured as follows: the scraper cleaning assembly includes an extrusion rod fixed on the inner end face of the cross plate and a second auxiliary groove opened on the end face of the grinding plate, and the extrusion rod passes through the auxiliary connecting plate and extends to the inside of the cavity and is limitedly connected to the inner wall of the grinding plate, a movable plate whose end face is fitted with the end of the extrusion rod is installed inside the cavity, and a limit frame is fixedly installed on the outer side of the movable plate, a movable block extending to the inside of the limit frame is fixed on the outer wall of the movable plate, and a groove is opened on the outer side of the movable block inside the limit frame, a spring connected to the outer wall of the movable block is installed inside the groove, and the movable block is slidably connected to the inner wall of the slide groove.

[0015] By adopting the above technical solution, the moving plate can be driven, and the moving plate can be reset under the action of the reset structure.

[0016] The present invention is further configured such that a first scraper and a second scraper are provided on the outer side of the limit frame near the inner wall of the grinding plate, and the bottom end of the first scraper is fixedly connected with a first adjusting rope that passes through the limit frame and extends to the outer wall of the movable plate, and the outer wall of the second scraper is fixed with a second adjusting rope that passes through the limit frame and extends to the outer wall of the movable plate, the inner wall of the grinding plate is located on the outer wall of the first scraper and is provided with a first outlet for the first scraper to enter and exit, and the inner wall of the grinding plate is located on the outer wall of the first scraper and is provided with a second outlet for the second scraper to enter and exit.

[0017] By adopting the above technical solution, the grinding powder on the inner wall of the slot can be cleaned and scraped off.

[0018] The present invention is further configured such that the inner end surface of the grinding plate located at one end of the first scraper and the second scraper are both provided with a reset component, the reset component includes a mounting groove opened on the inner end surface of the grinding plate, and the inner wall of the mounting groove is slidably connected with an adjustment block, the top ends of the two groups of adjustment blocks are respectively fixedly connected to the outer walls of the first scraper and the second scraper, and the outer walls of the two groups of adjustment blocks are both provided with reset springs installed in the mounting groove and respectively connected to the outer walls of the first scraper and the second scraper.

[0019] By adopting the above technical solution, the scraper is assisted in resetting and the second grinding component is further assisted in moving into the slot.

[0020] The present invention is further configured such that a dust suction component is also provided on the end face of the grinding belt, and the dust suction component includes a dust suction port opened on the end face of the grinding belt for sucking grinding dust, and a bottom plate with a built-in air cavity is installed at the bottom end of the dust suction port inside the grinding belt, the bottom plate is connected with the dust suction port so that the dust suction port has suction force, and the end of the bottom plate is connected with an air pipe extending to the outside of the grinding belt, the air pipe is connected to an external air source system, and the bottom end of the air pipe is connected with an outlet manifold, a filter screen for preventing dust from entering is provided at the connection between the outlet manifold and the air pipe, and the bottom end of the outlet manifold is connected with the inside of the chute so that the gas is blown toward the grinding belt through the chute.

[0021] By adopting the above technical solution, during the process of the grinding belt rotating and grinding the slot 6, the dust generated by the grinding can be absorbed, thereby achieving a cleaning effect. In addition, the gas used for dust absorption can also be used to dissipate heat from the grinding belt.

[0022] In summary, the present invention mainly has the following beneficial effects:

[0023] 1. The present invention sets a grinding drive component, a grinding component and a second grinding component. First, the hydraulic cylinder is started, so that the output end of the hydraulic cylinder pushes the cross plate to move forward until the cross plate moves to contact the outer wall of the power box. At this time, the power box will move under the action of the hydraulic cylinder, that is, the entire grinding equipment will move into the slot under the action of the hydraulic cylinder. At this time, the grinding belt will move into the slot and fit tightly with the four groups of end faces of the inner wall of the slot. Then, the external driving source is started, and the driving source drives the driving sprocket inside the power box to rotate. After the driving sprocket rotates, the driven sprocket is driven to rotate through the transmission chain. Under the action of the driven sprocket, the driving shaft starts to rotate, and after the driving shaft rotates, it will drive the grinding belt to rotate. After the grinding belt rotates, the grinding belt will achieve high-quality grinding of the inner wall end face of the slot through the friction of its end face and its own rotation. Correspondingly, by changing the rotation direction of the driving source, the grinding belt can perform directional rotation grinding, which can avoid repeated grinding tracks and form directional grinding tracks, thereby improving the grinding of the slot by the grinding belt. When the extrusion block on the outer wall of the driving shaft rotates into the slide groove on the inner wall of the grinding belt, the extrusion block will contact the force block. Therefore, under the action of the extrusion block, the force block The grinding belt will be squeezed and moved to one side. The movement of the force block will push the grinding belt to deviate. When the extrusion block rotates out of the slide slot, the grinding belt will reset and deviate in the opposite direction. At this time, the extrusion block on the other side moves to contact with the extrusion block, thereby realizing the reverse offset of the grinding belt. The reciprocating cycle enables the grinding belt to realize lateral reciprocating movement on the outer wall of the driving shaft, that is, the offset movement of the grinding belt cooperates with the rotation of the grinding belt, which can realize the composite grinding of the inner wall of the card slot, and further improve the grinding quality of the card slot. In addition, the rotation of the driving shaft will realize the driving effect of the driving half gear through the action of the connecting shaft. When the gear teeth of the driving half gear rotate to contact the tooth wall of the inner wall of the driven frame plate, it will drive the driven frame plate to move, and when the gear teeth of the driving half gear rotate to the bottom, it will contact the tooth wall at the bottom end of the driven frame plate and drive the driven frame plate to move in the direction of reciprocating cycle. The driven frame plate will drive the grinding plate to move back and forth. The reciprocating movement of the grinding plate will achieve the grinding effect on the fifth end face of the slot through the grinding layer of its end face. The five groups of end faces of the slot are synchronously polished at the same time, which greatly improves the grinding efficiency. Compared with the traditional grinding wheel moving operation, the efficiency of this device is unattainable by the traditional method.

[0024] 2. The present invention provides a scraper cleaning component and a reset component. Before the cross plate moves to contact the outer wall of the power box, it will first push the extrusion rod to move. After the extrusion rod moves, it will push the moving plate to move. Therefore, the moving plate will move in the inner wall of the limit frame under the auxiliary action of the moving block. The movement of the moving plate will pull the first adjusting rope and the second adjusting rope to move at the same time. The movement of the adjusting rope will pull the first scraper and the second scraper from the outside of the grinding plate to the cavity inside the grinding plate, thereby completing the storage of the scraper, thereby assisting the grinding plate to enter the slot. When the grinding operation is completed, the hydraulic cylinder will reset, and the reset of the hydraulic cylinder will drive the cross plate to reset. The movement of the cross plate will drive the extrusion rod to move outward, and the extrusion The movement of the pressure rod will pull the grinding plate to move outward through the limiting action between the pressure rod and the grinding plate, and the movement of the grinding plate will push the driving shaft to move outward, thereby achieving the effect of pulling the entire grinding device out of the slot. When the extrusion rod moves outward, the extrusion force of the extrusion rod on the moving plate will disappear, so the moving plate will reset and move under the action of the moving block, and at this time the pulling force of the moving plate on the adjusting rope will also disappear, so the first scraper and the second scraper will reset under the action of the reset spring, that is, move the grinding plate upward. Therefore, in the process of the grinding device moving out of the slot, the extended scraper will scrape the dust generated by grinding the inner wall of the slot to the outside of the slot through friction and scraping, thereby achieving a self-cleaning effect on the inner wall of the slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the grinding belt and the driving shaft of the present invention;

[0028] Figure 4 It is a schematic structural diagram of the second grinding assembly of the present invention;

[0029] Figure 5 It is a schematic diagram of the internal structure of the end plate of the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the state adjustment component of the present invention;

[0031] Figure 7 It is a front view of the internal structure of the short board of the present invention;

[0032] Figure 8 It is a schematic diagram of the internal structure of the card slot of the present invention;

[0033] Fig. 9 It is a schematic diagram of the internal structure of the grinding belt of the present invention;

[0034] Fig.10For the present invention Fig. 9 A partial enlarged view of point A in the figure.

[0035] In the figure: 1. grinding drive assembly; 101. hydraulic cylinder; 102. cross plate; 103. driving shaft; 104. power box; 105. auxiliary support plate; 106. auxiliary connecting rod; 107. auxiliary connecting plate; 2. grinding assembly; 201. grinding belt; 202. slideway; 203. force block; 204. mounting plate; 205. extrusion block; 3. second grinding assembly; 301. grinding plate; 3011. cavity; 302. grinding layer; 303. first auxiliary groove; 304. driving half gear; 305. connecting shaft; 306. driven frame plate; 4. scraper cleaning assembly; 401. extrusion rod; 4011. first Two auxiliary slots; 402, moving plate; 403, limiting frame; 404, first scraper; 405, first adjusting rope; 406, second scraper; 407, second adjusting rope; 408, moving block; 409, first outlet; 410, second outlet; 5, reset component; 501, mounting slot; 502, adjusting block; 503, reset spring; 6, card slot; 601, first end face; 602, second end face; 603, third end face; 604, fourth end face; 605, fifth end face; 7, dust suction component; 701, dust suction port; 702, bottom plate; 703, air pipe; 704, outlet manifold; 705, filter. DETAILED DESCRIPTION

[0036] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] The following describes an embodiment of the present invention based on its overall structure.

[0038] A card slot grinding and processing equipment for card reader production, such as Figure 1-10As shown, it includes a grinding drive assembly 1, which includes a hydraulic cylinder 101 installed on an external production equipment, and the output end of the hydraulic cylinder 101 is fixedly connected to a cross plate 102, one end of the cross plate 102 is symmetrically installed with a power box 104, and each end of each group of power boxes 104 is installed with a drive shaft 103, and an auxiliary support plate 105 is arranged between each two groups of drive shafts 103, and the auxiliary support plate 105 is slidably connected to the outer walls of the two groups of drive shafts 103, and the outer wall of each group of auxiliary support plates 105 is fixedly connected An auxiliary connecting rod 106 connected to the power box 104 is used to fix the auxiliary support plate 105. The outer walls of the two groups of auxiliary support plates 105 are also fixedly connected with auxiliary connecting plates 107 to further fix the auxiliary support plates 105. A driving sprocket connected to an external driving source is installed inside the power box 104, and a driven sprocket connected to the driving sprocket through a transmission chain is also installed inside the power box 104. The ends of the driving sprocket and the driven sprocket are connected to the end of the driving shaft 103 through a coupling.

[0039] In addition, a first end surface 601 , a second end surface 602 , a third end surface 603 , a fourth end surface 604 and a fifth end surface 605 are disposed inside the card slot 6 .

[0040] See also Figure 1-3 The outer wall of the driving shaft 103 is provided with a grinding assembly 2 for grinding the four groups of end faces of the card slot 6. The grinding assembly 2 can perform compound motion grinding on the four groups of end faces of the card slot 6 (i.e., the first end face 601, the second end face 602, the third end face 603, and the fourth end face 604, hereinafter referred to as the four groups of end faces), thereby greatly improving the grinding efficiency and quality of the inner wall of the card slot;

[0041] Specifically, the grinding assembly 2 includes a grinding belt 201 which is slidably sleeved on the outer wall of the driving shaft 103 and is laterally limited and reset, and the inner end surface of the grinding belt 201 is provided with two groups of slide grooves 202 extending toward the inside of the grinding belt 201, and a force block 203 is installed inside each group of slide grooves 202, and there are multiple groups of force blocks 203 which are evenly distributed on the inner wall of the slide grooves 202, and the force blocks 203 in the two groups of slide grooves 202 are arranged in opposite directions so that the extrusion directions of the two groups of force blocks 203 are different, and the outer wall of the driving shaft 103 is fixed with multiple groups of equidistant and annularly distributed mounting plates 204, and an extrusion block 205 is fixedly installed on the end surface of each group of force blocks 203, and the extrusion block 205 and the force block 203 are eccentrically arranged when they are not in contact, that is, the central axis of the extrusion block 205 overlaps with the central axis of the force block 203, so that the extrusion block 205 can extrude the force block 203.

[0042] See also Figure 4-5The inner end of the grinding component 2 is equipped with a second grinding component 3 for grinding the fifth end surface 605 of the slot 6. The second grinding component 3 can reciprocately grind the fifth end surface 605 of the slot 6.

[0043] Specifically, the second grinding component 3 includes a grinding plate 301 arranged on the inner side of the end of the grinding belt 201, and a grinding layer 302 is arranged on the outer wall end face of the grinding plate 301, a cavity 3011 is opened inside the grinding plate 301, and a first auxiliary groove 303 is opened on the inner end face of the grinding plate 301, a driving half gear 304 is installed inside the cavity 3011, and a connecting shaft 305 connected to the end of the driving shaft 103 is installed at the end of the driving half gear 304, a driven frame plate 306 fixedly connected to the inner wall of the cavity 3011 is arranged on the outer side of the connecting shaft 305, and the tooth wall of the inner wall end face of the driven frame plate 306 is adapted to the gear teeth of the driving half gear 304.

[0044] See also Figure 4-7 The inner end surface of the horizontal plate 102 is also equipped with a scraper cleaning assembly 4, which can be moved out by the scraper, so that when the device is moved out of the slot 6, the powder on the inner wall of the slot 6 generated by grinding can be cleaned by friction and scraping;

[0045] Specifically, the scraper cleaning assembly 4 includes an extrusion rod 401 fixed on the inner end surface of the transverse plate 102 and a second auxiliary groove 4011 opened on the end surface of the grinding plate 301, and the extrusion rod 401 penetrates the auxiliary connecting plate 107 and extends to the inside of the cavity 3011 and is limitedly connected to the inner wall of the grinding plate 301, and a moving plate 402 whose end surface is fitted with the end of the extrusion rod 401 is installed inside the cavity 3011, and a limit frame 403 is fixedly installed on the outer side of the moving plate 402, and a moving block 408 extending to the inside of the limit frame 403 is fixed on the outer wall of the moving plate 402, and a groove is opened on the outer side of the moving block 408, and a spring connected to the outer wall of the moving block 408 is installed inside the groove, The moving block 408 is slidably connected to the inner wall of the slide groove, and a first scraper 404 and a second scraper 406 are arranged on the outer side of the limit frame 403 near the inner wall of the grinding plate 301, and the bottom end of the first scraper 404 is fixedly connected with a first adjusting rope 405 that penetrates the limit frame 403 and extends to the outer wall of the moving plate 402, and the outer wall of the second scraper 406 is fixed with a second adjusting rope 407 that penetrates the limit frame 403 and extends to the outer wall of the moving plate 402, the inner wall of the grinding plate 301 is located on the outer wall of the first scraper 404 and is provided with a first outlet 409 for the first scraper 404 to enter and exit, and the inner wall of the grinding plate 301 is located on the outer wall of the first scraper 404 and is provided with a second outlet 410 for the second scraper 406 to enter and exit.

[0046] See also Figure 7The inner end surface of the grinding plate 301 is located at one end of the first scraper 404 and the second scraper 406, and a reset component 5 is provided. The reset component 5 can achieve the reset effect of the scraper, thereby assisting the second grinding component 3 to enter the slot for operation;

[0047] Specifically, the reset component 5 includes a mounting groove 501 provided on the inner end surface of the grinding plate 301, and the inner wall of the mounting groove 501 is slidably connected with an adjusting block 502, the top ends of the two groups of adjusting blocks 502 are respectively fixedly connected to the outer walls of the first scraper 404 and the second scraper 406, and the outer walls of the two groups of adjusting blocks 502 are both provided with reset springs 503 installed inside the mounting groove 501 and respectively connected to the outer walls of the first scraper 404 and the second scraper 406.

[0048] See also Figure 1 , Fig. 9 and Fig.10 The end surface of the grinding belt 201 is also provided with a dust suction component 7, which can absorb the grinding dust during the grinding process of the grinding belt 201, thereby achieving the effect of sucking out the dust in the card slot 6, that is, the waste generated by the grinding during the grinding process is cleaned up at the same time, thereby improving the quality of the grinding and preventing the dust particles from affecting the end surface of the card slot 6;

[0049] Specifically, the dust suction component 7 includes a dust suction port 701 opened on the end surface of the grinding belt 201 for sucking in grinding dust, and a bottom plate 702 with a built-in air cavity is installed at the bottom end of the dust suction port 701 inside the grinding belt 201, the bottom plate 702 is connected with the dust suction port 701 so that the dust suction port 701 has suction force, and the end of the bottom plate 702 is connected with an air pipe 703 extending to the outside of the grinding belt 201, the air pipe 703 is connected to the external air source system, and the bottom end of the air pipe 703 is connected with an outlet manifold 704, and a filter 705 for preventing dust from entering is arranged at the connection between the outlet manifold 704 and the air pipe 703, and the bottom end of the outlet manifold 704 is connected with the inside of the chute 202 so that the gas can be blown toward the grinding belt 201 through the chute 202.

[0050] The working principle of the present invention is as follows: first, the hydraulic cylinder 101 is started, so that the output end of the hydraulic cylinder 101 pushes the horizontal plate 102 to move forward until the horizontal plate 102 moves to contact the outer wall of the power box 104. At this time, the power box 104 will move under the action of the hydraulic cylinder 101, that is, the entire grinding device will move to the card reader slot 6 under the action of the hydraulic cylinder 101. At this time, the grinding belt 201 will move into the card slot 6 and fit tightly with the four sets of end faces of the inner wall of the card slot 6;

[0051] Start the external driving source, the driving source will drive the driving sprocket inside the power box 104 to rotate, and after the driving sprocket rotates, it drives the driven sprocket to rotate through the transmission chain. Under the action of the driving sprocket and the driven sprocket, the driving shaft 103 starts to rotate. After the driving shaft 103 rotates, it will drive the grinding belt 201 to rotate. After the grinding belt 201 rotates, the grinding belt 201 will achieve high-quality grinding of the inner wall end surface of the slot 6 through the friction of its end surface and its own rotation. Correspondingly, by changing the rotation direction of the driving source, the grinding belt 201 can perform reverse rotation grinding, which can avoid repeated grinding tracks and form reverse grinding tracks, thereby improving the grinding quality of the grinding belt 201 on the slot 6;

[0052] When the extrusion block 205 on the outer wall of the driving shaft 103 rotates into the slide groove 202 on the inner wall of the grinding belt 201, the extrusion block 205 will contact the force-bearing block 203. Therefore, under the action of the extrusion block 205, the force-bearing block 203 will be squeezed and moved to one side. The movement of the force-bearing block 203 will push the grinding belt 201 to deflect. When the extrusion block 205 rotates out of the slide groove 202, the grinding belt 201 will be reset and deflected in the reverse direction. At this time, the second group of extrusion blocks 205 located on the other side move to contact with the second group of extrusion blocks 205, thereby realizing the reverse deflection of the grinding belt 201, and the reciprocating cycle makes the grinding belt 201 realize the lateral reciprocating movement on the outer wall of the driving shaft 103, that is, the offset movement of the grinding belt 201 cooperates with the rotation of the grinding belt 201, which can realize the composite grinding of the inner wall of the slot 6, and further improve the grinding quality of the slot 6.

[0053] Furthermore, the rotation of the driving shaft 103 can achieve a driving effect on the driving half gear 304 through the action of the connecting shaft 305. When the gear teeth of the driving half gear 304 rotate to contact the tooth wall of the inner wall of the driven frame plate 306, it will drive the driven frame plate 306 to move. When the gear teeth of the driving half gear 304 rotate to the bottom, it will contact the tooth wall at the bottom end of the driven frame plate 306 and drive the driven frame plate 306 to move in the direction of reciprocating cycle. The driven frame plate 306 will drive the grinding plate 301 to move back and forth. The reciprocating movement of the grinding plate 301 will achieve a grinding effect on the fifth end face 605 of the slot 6 through the grinding layer 302 on its end face. The five groups of end faces of the slot 6 are synchronously polished at the same time, which greatly improves the grinding efficiency.

[0054] In addition, before the horizontal plate 102 moves to contact the outer wall of the power box 104, it will first push the extrusion rod 401 to move, and the extrusion rod 401 will push the moving plate 402 to move. Therefore, the moving plate 402 will move in the inner wall of the limit frame 403 with the assistance of the moving block 408. The movement of the moving plate 402 will simultaneously pull the first adjustment rope 405 and the second adjustment rope 407 to move. The movement of the adjustment rope will pull the first scraper 404 and the second scraper 406 from the outside of the grinding plate 301 to the cavity 3011 inside the grinding plate 301, thereby completing the storage of the scraper, thereby assisting the grinding plate 301 to enter the card slot 6;

[0055] Furthermore, during the grinding process of the belt 201, the air pipe 703 will generate negative pressure adsorption force inside the bottom plate 702 through the action of the external air source, and then the dust suction port 701 will have the adsorption force for dust. Therefore, the dust generated by grinding will enter the bottom plate 702 through the dust suction port 701, and then will be sucked out to the outside under the action of the air pipe 703, so as to achieve dust collection during the grinding process. In addition, part of the gas in the air pipe 703 will enter the chute 202. Specifically, the gas in the air pipe 703 will enter the outlet manifold 704 through the filtering effect of the filter 705, and the gas in the outlet manifold 704 will flow out through the chute 202, so as to achieve the air cooling and heat dissipation effect of the grinding belt 201.

[0056] When the grinding operation is completed, the hydraulic cylinder 101 will be reset, and the reset of the hydraulic cylinder 101 will drive the horizontal plate 102 to reset, and the movement of the horizontal plate 102 will drive the extrusion rod 401 to move outward, and the movement of the extrusion rod 401 will pull the grinding plate 301 to move outward through the limiting action between the extrusion rod 401 and the grinding plate 301, and the movement of the grinding plate 301 will push the driving shaft 103 to move outward, so as to achieve the effect of pulling out the card slot 6 of the entire grinding device;

[0057] When the extrusion rod 401 moves outward, the extrusion force exerted on the moving plate 402 by the extrusion rod 401 will disappear, so the moving plate 402 will reset and move under the action of the moving block 408, and at this time, the pulling force of the moving plate 402 on the adjusting rope will also disappear, so the first scraper 404 and the second scraper 406 will reset and move upward out of the grinding plate 301 under the action of the reset spring 503. Therefore, in the process of the grinding device moving out of the slot 6, the extended scraper will scrape the dust generated by grinding the inner wall of the slot 6 to the outside of the slot 6 through friction and scraping, thereby achieving a self-cleaning effect on the inner wall of the slot 6 after grinding.

[0058] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A card slot grinding and processing device for card reader production, comprising a grinding drive component (1), Features: The grinding drive assembly (1) comprises a hydraulic cylinder (101) installed on an external production device, and the output end of the hydraulic cylinder (101) is fixedly connected to a transverse plate (102), one end of the transverse plate (102) is symmetrically mounted with a power box (104), and the end of each group of the power boxes (104) is mounted with a driving shaft (103), a slot (6) to be processed is arranged on a side away from the grinding drive assembly (1), and the interior of the slot (6) is provided with a first end face (601), a second end face (602), a third end face (603), a fourth end face (604) and a fifth end face (605); The outer wall of the driving shaft (103) is provided with a grinding assembly (2) for grinding the first end face (601), the second end face (602), the third end face (603), and the fourth end face (604); the hydraulic cylinder (101) drives the power box (104) to move and causes the driving shaft (103) to drive the grinding assembly (2) to operate to achieve the grinding processing function of the card slot (6); and the inner end of the grinding assembly (2) is installed with a second grinding assembly (3) for grinding the fifth end face (605); while the grinding assembly (2) is operating, the driving shaft (104) is driven to grind the card slot (6). 03) will also drive the second grinding component (3) to operate to achieve grinding processing on the fifth end face (605), and the inner end face of the horizontal plate (102) is also installed with a scraper cleaning component (4). When the grinding component (2) moves into the interior of the card slot (6), the scraper cleaning component (4) will operate under the action of the hydraulic cylinder (101) to assist the grinding component (2) to enter the card slot (6), and when the grinding component (2) completes the grinding, the scraper cleaning component (4) will operate in the reverse direction under the action of the hydraulic cylinder (101) to clean the inner wall end face of the card slot (6); The grinding assembly (2) comprises a grinding belt (201) which is slidably sleeved with the outer wall of the driving shaft (103) and is connected to the grinding belt (201) in a transverse limit reset manner, and the inner end surface of the grinding belt (201) is provided with two groups of slide grooves (202) extending into the interior of the grinding belt (201), and a force-bearing block (203) is installed inside each group of the slide grooves (202), and the force-bearing blocks (203) are provided in multiple groups and are evenly distributed on the inner wall of the slide groove (202), and the force-bearing blocks (203) in the two groups of the slide grooves (202) are arranged in opposite directions. , so that the extrusion directions of the two groups of force-bearing blocks (203) are different, the outer wall of the drive shaft (103) is fixed with multiple groups of equidistant and annularly distributed mounting plates (204), and the end surface of each group of the force-bearing blocks (203) is fixedly mounted with an extrusion block (205), and the extrusion block (205) and the force-bearing block (203) are eccentrically arranged when not in contact, that is, the central axis of the extrusion block (205) overlaps with the central axis of the force-bearing block (203), so that the extrusion block (205) can squeeze the force-bearing block (203).

2. A card slot grinding and processing equipment for card reader production according to claim 1, Features: An auxiliary support plate (105) is provided between each two groups of the drive shafts (103), and the auxiliary support plate (105) is slidably connected to the outer walls of the two groups of the drive shafts (103). The outer walls of each group of the auxiliary support plates (105) are fixedly connected to an auxiliary connecting rod (106) connected to the power box (104), so that the auxiliary support plates (105) are fixedly limited. The outer walls of the two groups of the auxiliary support plates (105) are also fixedly connected to auxiliary connecting plates (107), so that the auxiliary support plates (105) are further fixedly limited.

3. The card slot grinding and processing equipment for card reader production according to claim 1, Features: A driving sprocket connected to an external driving source is installed inside the power box (104), and a driven sprocket connected to the driving sprocket via a transmission chain is also installed inside the power box (104), and the ends of the driving sprocket and the driven sprocket are connected to the end of the driving shaft (103) via a coupling.

4. The card slot grinding and processing equipment for card reader production according to claim 1, Features: The second grinding assembly (3) comprises a grinding plate (301) arranged on the inner side of the end of the grinding belt (201), and a grinding layer (302) is arranged on the outer wall end surface of the grinding plate (301), a cavity (3011) is provided inside the grinding plate (301), and a first auxiliary groove (303) is provided on the inner side end surface of the grinding plate (301), a driving half gear (304) is installed inside the cavity (3011), and a connecting shaft (305) connected to the end of the driving half gear (304) is installed at the end of the driving half gear (304), a driven frame plate (306) fixedly connected to the inner wall of the cavity (3011) is arranged on the outer side of the connecting shaft (305), and the tooth wall of the inner wall end surface of the driven frame plate (306) is adapted to the gear teeth of the driving half gear (304).

5. The card slot grinding and processing equipment for card reader production according to claim 4, Features: The scraper cleaning assembly (4) comprises an extrusion rod (401) fixed to the inner end surface of the transverse plate (102) and a second auxiliary groove (4011) provided on the end surface of the grinding plate (301), and the extrusion rod (401) passes through the auxiliary connecting plate (107) and extends to the inside of the cavity (3011) to be limitedly connected with the inner wall of the grinding plate (301), a moving plate (402) whose end surface is arranged to fit the end of the extrusion rod (401) is installed inside the cavity (3011), and a limit frame (403) is fixedly installed on the outer side of the moving plate (402), a moving block (408) extending into the inside of the limit frame (403) is fixed on the outer wall of the moving plate (402), and a groove is provided on the outer side of the moving block (408) located inside the limit frame (403), a spring connected to the outer wall of the moving block (408) is installed inside the groove, and the moving block (408) is slidably connected to the inner wall of the slide groove.

6. The card slot grinding and processing equipment for card reader production according to claim 5, Features: A first scraper (404) and a second scraper (406) are provided on the outer side of the limit frame (403) near the inner wall of the grinding plate (301), and a first adjustment rope (405) penetrating the limit frame (403) and extending to the outer wall of the movable plate (402) is fixedly connected to the bottom end of the first scraper (404), and a second adjustment rope (407) penetrating the limit frame (403) and extending to the outer wall of the movable plate (402) is fixedly provided on the outer wall of the second scraper (406). A first outlet (409) for the first scraper (404) to enter and exit is provided on the inner wall of the grinding plate (301) located on the outer wall of the first scraper (404), and a second outlet (410) for the second scraper (406) to enter and exit is provided on the inner wall of the grinding plate (301) located on the outer wall of the first scraper (404).

7. The card slot grinding and processing equipment for card reader production according to claim 6, Features: The inner end surface of the grinding plate (301) is located at one end of the first scraper (404) and the second scraper (406) and is provided with a reset component (5), the reset component (5) comprises a mounting groove (501) provided on the inner end surface of the grinding plate (301), and the inner wall of the mounting groove (501) is slidably connected to an adjustment block (502), the top ends of the two groups of adjustment blocks (502) are respectively fixedly connected to the outer walls of the first scraper (404) and the second scraper (406), and the outer walls of the two groups of adjustment blocks (502) are provided with a reset spring (503) installed in the mounting groove (501) and respectively connected to the outer walls of the first scraper (404) and the second scraper (406).

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