Chain belt screw feeding device and process for screw gun

Abstract

The invention relates to the technical field of electric tools, and discloses a chain belt screw feeding device for a screw gun and a feeding technology.The chain belt screw feeding device comprises a device body, a feeding sliding groove, a feeding bin and a screw limiting block, the feeding sliding groove is fixedly formed in the device body, and the feeding bin is slidably mounted in the feeding sliding groove; the screw limiting block is installed outside the feeding bin, a feeding groove is formed in the outer portion of the device body, and a screw gun connecting mechanism is installed in the device body. When a screw limiting block abuts against the wall face to drive a feeding bin to slide forwards in a feeding sliding groove, a feeding gear can be driven to rotate to feed a screw chain belt, and when a feeding spring drives the feeding bin to slide reversely in the feeding sliding groove, a cutting mechanism can be driven to cut off the redundant screw chain belt; therefore, redundant screw chain belts can be cut off in time, and the redundant screw chain belts are prevented from affecting subsequent drilling installation of screws.

Description

Technical Field

[0001] The invention relates to the technical field of electric tools, and in particular to a chain screw feeding device and a feeding process for a screw gun. Background Art

[0002] Screws are a common part used to fasten objects. Screws adjust the direction of friction and force through the friction of the circular shoe surface. Screws are widely used in life and production processes and play an irreplaceable role.

[0003] Chinese patent CN108747325B discloses an automatic screw gun, which is provided with a driving motor and a gasket feeding mechanism inside the device. The gasket feeding mechanism can deliver a gasket to the front end of the screw before each screw is ejected, thereby realizing automatic installation of the gasket.

[0004] In the above patents and prior art, the screw feeding device does not have a screw withdrawal mechanism, and the screws are continuously fed during long-term operation, causing the screw chain to accumulate on the feeding device. The screw chain accumulated on the feeding device will affect the subsequent screw feeding and installation. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a chain screw feeding device and a feeding process for a screw gun.

[0006] A chain screw feeding device and feeding process for a screw gun, comprising a device body, a feeding chute, a feeding bin and a screw limit block, wherein the feeding chute is fixedly installed inside the device body, the feeding bin is slidably installed inside the feeding chute, the screw limit block is installed outside the feeding bin, a feeding groove is opened outside the device body, a screw gun connecting mechanism is installed inside the device body, a feeding spring is installed inside the feeding groove, a movable end of the feeding spring is connected to the feeding bin, a feeding mechanism is installed inside the feeding bin, a limiting mechanism is installed inside the feeding bin, a cutting mechanism is arranged on the top of the feeding bin, a limiting block is slidably installed inside the feeding bin, and a screw limit block is slidably installed outside the feeding bin;

[0007] A chute is provided on one side of the feed chute, and one end of the feed mechanism passes through the feed bin and the chute on the side of the feed chute;

[0008] The feeding mechanism comprises a feeding gear, which is rotatably mounted inside the feeding bin, and an inclined clamping block and an inclined clamping slot are respectively provided on both sides of the feeding gear, and the inclined clamping block on one side of the feeding gear can limit the rotation direction of the feeding gear, and the limiting mechanism is clamped with the unidirectional inclined clamping slot on one side of the feeding gear;

[0009] The screw gun connecting mechanism can connect the inserted screw gun, and the chain screw can be fixed by the feed gear after passing through the feed slot and the feed bin. When the screw limit block is pressed against the wall for squeezing, the feed bin can be driven to slide forward inside the feed slide slot. When the feed bin slides inside the feed slide slot, the feed spring can be compressed. When the feed bin slides forward, the feed mechanism can rotate under the limitation of the slide slot opened outside the feed slide slot. When the feed gear rotates, the chain screw can be driven to rise. During the extrusion process, the screw gun contacts the screw and drills the screw into the wall. Then the screw limit block leaves the wall and the feed spring rebounds. When the feed spring rebounds, it drives the feed bin to slide reversely inside the feed slide slot. When the feed bin slides reversely, the cutting mechanism can be driven through the feed slide slot to cut off the chain without screws.

[0010] Preferably, the limit block is slidably mounted inside the feed bin, one end of the limit block passes through the feed bin to form a protrusion on one side of the feed bin, the screw limit block is slidably mounted outside the feed bin, and one side of the screw limit block is provided with a plurality of equidistant circular holes;

[0011] One end of the limit block passes through the feed bin and is engaged with the round hole on the side of the screw limit block.

[0012] Preferably, the feeding mechanism comprises a gear shaft and a transmission shaft, the gear shaft and the transmission shaft are both rotatably mounted inside the feeding bin, the feeding gear is rotatably mounted outside the gear shaft, a shaft clamping block is fixedly mounted outside the gear shaft, and a transmission connecting block is fixedly mounted outside the transmission shaft;

[0013] The distance between the external teeth of the feed gear is equal to the distance between the holes on the screw chain.

[0014] Preferably, the transmission connection block is rotatably mounted inside the feed bin via a transmission shaft, one end of the transmission connection block passes through the feed bin and is engaged with a chute on the side of the feed chute, and the other end of the transmission connection block is engaged with a shaft clamping block;

[0015] An inclined block is arranged on one side of the gear shaft, the inclined direction of the inclined block on the gear shaft is opposite to the inclined direction of the inclined block on the feed gear, and the one-way block arranged on one side of the feed gear is engaged with the one-way block on one side of the gear shaft.

[0016] Preferably, the limiting mechanism comprises a limiting rotating shaft, a limiting torsion spring and a torsion spring clamping block, the limiting rotating shaft is rotatably mounted inside the feeding bin, the torsion spring clamping block is fixedly mounted on the inner side wall of the feeding bin, the limiting torsion spring is mounted outside the limiting rotating shaft, one end of the limiting rotating shaft is fixedly connected to a gear clamping block, and the other end of the limiting rotating shaft is fixedly connected to a limiting handle;

[0017] One side of the gear clamping block is clamped with an inclined clamping block provided outside the feed gear.

[0018] Preferably, one end of the limit shaft is fixedly connected to the gear block, and the other end of the limit shaft passes through the feed bin and the torsion spring block and is fixedly connected to the limit handle;

[0019] The limiting torsion spring is located between the torsion spring clamping block and the limiting torsion spring, and the two ends of the limiting torsion spring are respectively clamped with the inner parts of the torsion spring clamping block and the gear clamping block.

[0020] Preferably, the cutting mechanism includes a cutting bin and a cutting railing, the cutting bin is opened inside the feed bin, the cutting railing is fixedly installed on the top of the feed bin, a telescopic spring is fixedly installed inside the cutting bin, a telescopic sleeve is fixedly installed inside the telescopic spring, the movable end of the telescopic sleeve is fixedly connected to a cutting telescopic rod, one end of the cutting telescopic rod is fixedly connected to a cutting blade, a cutting connecting rod is fixedly installed outside the cutting blade, and a cutting block is installed on the top of the cutting connecting rod.

[0021] Preferably, the cutting telescopic rod is slidably installed inside the telescopic spring through a telescopic sleeve, one end of the cutting telescopic rod is connected to the telescopic sleeve, and the other end of the telescopic sleeve is fixedly connected to the cutting blade;

[0022] The cutting blade is slidably installed inside the cutting bin via a cutting telescopic rod and a telescopic spring. Two cutting connecting rods and a cutting telescopic rod are installed outside the cutting blade. Both of the two cutting telescopic rods are connected with a telescopic sleeve and a telescopic spring. The tops of the two cutting connecting rods pass through the feed bin and are fixedly connected to the cutting block.

[0023] Preferably, the cutting block comprises: the bottom is fixedly connected to the cutting connecting rod, the inner part is rotatably mounted, the outer part is rotatably mounted and;

[0024] The and are connected by rotation, the two ends of the and are respectively connected to, the bottom is fixedly connected to two cutting connecting rods, and the bottom is fitted with the top of the feed bin.

[0025] Compared with the prior art, the present invention provides a chain screw feeding device and feeding process for a screw gun, which has the following beneficial effects:

[0026] 1. This chain screw feeding device for a screw gun can drive the feed gear to rotate to feed the screw chain when the screw limit block abuts against the wall and drives the feed bin to slide forward inside the feed chute. When the feed spring drives the feed bin to slide reversely inside the feed chute, it can drive the cutting mechanism to cut off excess screw chain, thereby timely cutting off the excess screw chain to prevent the excess screw chain from affecting the subsequent drilling and installation of screws.

[0027] 2. This chain screw feeding device for a screw gun can be engaged with the feed gear during operation, and when engaged with the feed gear, it can prevent the feed gear from rotating counterclockwise and causing the screw chain to fall off. After the work is completed, the gear block can be driven to rotate by turning the limit handle to release the engagement with the feed gear, so that the screw chain can be removed from the feed gear by directly pulling the screw chain to drive the feed gear to rotate counterclockwise.

[0028] 3. This chain screw feeding device for a screw gun can slide the limit block to release the fixation of the screw limit block as needed during operation. After releasing the fixation of the screw limit block, the distance between the screw limit block and the feed bin can be adjusted, thereby adjusting the distance between the screw limit block and the feed bin according to the length of the screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The three-dimensional structure diagram of a chain screw feeding device for a screw gun of the present invention is shown in FIG. Figure 1 ;

[0030] Figure 2 The three-dimensional structure diagram of a chain screw feeding device for a screw gun of the present invention is shown in FIG. Figure 2 ;

[0031] Figure 3 It is a schematic diagram of the internal structure of a chain screw feeding device for a screw gun of the present invention;

[0032] Figure 4 It is a schematic diagram of the internal structure of a feeding chute of a mechanism of a chain screw feeding device for a screw gun of the present invention;

[0033] Figure 5 For the present invention Figure 4 A schematic diagram of the structure enlargement at the center A;

[0034] Figure 6 The internal structure of the feeding bin of the chain screw feeding device for the screw gun of the present invention is schematically shown. Figure 1 ;

[0035] Figure 7The internal structure of the feeding bin of the chain screw feeding device for the screw gun of the present invention is schematically shown. Figure 2 ;

[0036] Figure 8 It is a schematic diagram of the exploded structure of a feeding mechanism of a chain screw feeding device for a screw gun of the present invention;

[0037] Fig. 9 It is a schematic diagram of the exploded structure of a limiting mechanism of a chain screw feeding device for a screw gun according to the present invention;

[0038] Fig.10 It is a schematic diagram of the internal structure of a cutting mechanism of a chain screw feeding device for a screw gun of the present invention;

[0039] Fig.11 The present invention is a schematic diagram of the exploded structure of a cutting block of a chain screw feeding device for a screw gun.

[0040] In the figure: 1. device body; 2. feed slot; 3. screw gun connecting mechanism; 4. feed slide; 5. feed spring; 6. feed bin; 7. feed mechanism; 71. feed gear; 72. gear shaft; 73. shaft clamp; 74. transmission shaft; 75. transmission connecting block; 8. limit mechanism; 81. limit shaft; 82. gear clamp; 83. limit torsion spring; 84. torsion spring clamp; 85. limit handle; 9. cutting mechanism; 91. cutting bin; 92. cutting blade; 93. cutting connecting rod; 94. cutting clamp; 941. lower clamp; 942. clamp shaft; 943. upper clamp; 944. clamp torsion spring; 95. cutting telescopic rod; 96. telescopic spring; 97. telescopic sleeve; 98. cutting railing; 10. limit clamp; 11. screw limit block. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a chain screw feeding device and feeding process for a screw gun.

[0043] Embodiment 1:

[0044] See also Figure 1 - Fig.11, a chain screw feeding device for a screw gun, comprising a device body 1, a feeding chute 4, a feeding bin 6 and a screw limit block 11, the device body 1 is fixedly installed with the feeding chute 4, the feeding bin 6 is slidably installed inside the feeding chute 4, the outside of the feeding bin 6 is installed with a screw limit block 11, the outside of the device body 1 is provided with a feeding groove 2, the inside of the device body 1 is installed with a screw gun connecting mechanism 3, the inside of the feeding groove 2 is installed with a feeding spring 5, the movable end of the feeding spring 5 is connected with the feeding bin 6, the inside of the feeding bin 6 is installed with a feeding mechanism 7, the inside of the feeding bin 6 is installed with a limiting mechanism 8, the top of the feeding bin 6 is provided with a cutting mechanism 9, the inside of the feeding bin 6 is slidably installed with a limiting block 10, and the outside of the feeding bin 6 is slidably installed with a screw limit block 11;

[0045] A chute is provided on one side of the feed chute 4, and one end of the feed mechanism 7 passes through the feed bin 6 and the chute on the side of the feed chute 4;

[0046] The feeding mechanism 7 includes a feeding gear 71, which is rotatably mounted inside the feeding bin 6. An inclined block and an inclined slot are respectively provided on both sides of the feeding gear 71. The inclined block on one side of the feeding gear 71 can limit the rotation direction of the feeding gear 71. The limiting mechanism 8 is engaged with the unidirectional inclined slot on one side of the feeding gear 71.

[0047] The screw gun connecting mechanism 3 can connect the inserted screw gun, and the chain screw can be fixed by the feed gear 71 after passing through the feed groove 2 and the feed bin 6. When the screw limit block 11 is pressed against the wall for squeezing, it can drive the feed bin 6 to slide forward inside the feed chute 4. When the feed bin 6 slides inside the feed chute 4, the feed spring 5 can be compressed. When the feed bin 6 slides forward, the feed mechanism 7 can rotate under the limitation of the chute opened outside the feed chute 4. When the feed gear 71 rotates, it can drive the chain screw to rise. During the extrusion process, the screw gun contacts the screw and drills the screw into the wall. Then the screw limit block 11 leaves the wall and the feed spring 5 rebounds. When the feed spring 5 rebounds, it drives the feed bin 6 to slide reversely inside the feed chute 4. When the feed bin 6 slides reversely, it can drive the cutting mechanism 9 through the feed chute 4 to cut off the chain without screws.

[0048] When performing the screw rotation operation, first pass the screw chain belt through the feed slot 2 and the feed bin 6 and engage the first perforation on the screw chain belt with the feed gear 71. When performing the screw drilling installation, first press the screw limit block 11 against the wall, and drive the screw limit block 11 and the feed bin 6 to slide forward along the feed slot 4 by squeezing the screw limit block 11 against the wall. The feed bin 6 can compress the feed spring 5 during the sliding process, and the feed mechanism 7 can drive the feed gear 71 to rotate under the restriction of the slot opened outside the feed slot 4 during the sliding process of the feed bin 6. When the feed gear 71 rotates, it can drive the screw The chain belt rises, and during the extrusion process, the screw gun contacts the screw and drills the screw into the wall. After the screw is drilled in, the screw limit block 11 leaves the wall, and then the feed spring 5 rebounds and drives the feed bin 6 and the screw limit block 11 to slide in the opposite direction along the feed slide groove 4. During the reverse sliding process of the screw limit block 11, the cutting mechanism 9 can be driven to cut off the vacant screw chain belt after the rise, and the cutting mechanism 9 can be driven to cut off the excess screw chain belt through the rebound of the screw limit block 11, so that the screw chain belt can be cut off in time after the screw hole is drilled, thereby effectively preventing the excess screw chain belt from affecting the drilling operation during the drilling process.

[0049] Embodiment 2:

[0050] The difference from the above embodiment is that, please refer to Figure 4 - Figure 6 The limit block 10 is slidably installed inside the feed bin 6, one end of the limit block 10 passes through the feed bin 6 to form a protrusion on one side of the feed bin 6, and the screw limit block 11 is slidably installed outside the feed bin 6, and one side of the screw limit block 11 is provided with a plurality of equidistant circular holes;

[0051] One end of the limiting block 10 passes through the feeding bin 6 and is engaged with the round hole on the side of the screw limiting block 11 .

[0052] Screws of different lengths are often used during the working process. When the screw length is greater than the distance between the screw limit block 11 and the feed bin 6, the screw chain cannot complete the normal screw loading operation. When necessary, the limit block 10 can be slid to release the fixation of the screw limit block 11 by the limit block 10. The multiple circular holes on the side of the screw limit block 11 can adjust the distance between the screw limit block 11 and the feed bin 6, thereby meeting the working needs and adapting to screws of different lengths.

[0053] Embodiment three:

[0054] The difference from the above embodiment is that, please refer to Figure 2 and Figure 8The feeding mechanism 7 includes a gear shaft 72 and a transmission shaft 74, both of which are rotatably mounted inside the feeding bin 6, and the feeding gear 71 is rotatably mounted outside the gear shaft 72, a shaft clamping block 73 is fixedly mounted outside the gear shaft 72, and a transmission connecting block 75 is fixedly mounted outside the transmission shaft 74;

[0055] The distance between the external teeth of the feed gear 71 is equal to the distance between the holes on the screw chain.

[0056] The transmission connection block 75 is rotatably mounted inside the feed bin 6 via the transmission shaft 74. One end of the transmission connection block 75 passes through the feed bin 6 and is engaged with the chute on the side of the feed chute 4. The other end of the transmission connection block 75 is engaged with the shaft block 73.

[0057] An inclined block is provided on one side of the gear shaft 72 , and the inclined direction of the inclined block on the gear shaft 72 is opposite to the inclined direction of the inclined block on the feed gear 71 . The one-way block provided on one side of the feed gear 71 is engaged with the one-way block on one side of the gear shaft 72 .

[0058] When the screw limit block 11 abuts against the wall and drives the feed bin 6 to slide forward inside the feed chute 4, it drives the transmission connection block 75 to move synchronously. When the transmission connection block 75 moves, it can move along the trajectory of the chute on the side of the feed chute 4 and rotate counterclockwise under the restriction of the chute on the side of the feed chute 4. When the transmission connection block 75 rotates clockwise, it can drive the gear shaft 72 to rotate clockwise through the shaft block 73. When the gear shaft 72 rotates clockwise, it can be engaged with the inclined block on the side of the feed gear 71 through the inclined block on the side. The inclined section length of the chute on the side of the feed chute 4 is limited. Each push sliding of the feed bin 6 can make the feed gear 71 rotate a distance of a tooth. When the feed gear 71 rotates, it can drive the screw chain belt to rise to feed the screw. After the screw is installed, the feed bin 6 slides reversely inside the feed chute 4 under the action of the feed spring 5. When the feed bin 6 slides reversely, the transmission connecting block 75 can rotate clockwise along the chute on the side of the feed chute 4. When the transmission connecting block 75 rotates clockwise, the gear shaft 72 can be driven counterclockwise through the shaft clamping block 73. When the gear shaft 72 rotates counterclockwise, the rotation direction of the inclined clamping block on the side is the same as the inclined direction of the inclined clamping block on the side of the feed gear 71, and it is clamped with the limit mechanism 8 on the other side of the feed gear 71. When the gear shaft 72 rotates counterclockwise, the feed gear 71 cannot rotate. The screws are drilled and installed by squeezing on the wall to drive the feed gear 71 to rotate, thereby driving the screw feeding process to automatically complete the screw feeding.

[0059] Embodiment 4:

[0060] The difference from the above embodiment is that, please refer to Figure 6- Fig. 9 The limiting mechanism 8 includes a limiting rotating shaft 81, a limiting torsion spring 83 and a torsion spring clamping block 84. The limiting rotating shaft 81 is rotatably mounted inside the feeding bin 6, the torsion spring clamping block 84 is fixedly mounted on the inner side wall of the feeding bin 6, the limiting torsion spring 83 is mounted on the outside of the limiting rotating shaft 81, one end of the limiting rotating shaft 81 is fixedly connected to the gear clamping block 82, and the other end of the limiting rotating shaft 81 is fixedly connected to the limiting handle 85;

[0061] One side of the gear clamping block 82 is clamped with an inclined clamping block provided outside the feed gear 71 .

[0062] One end of the limit shaft 81 is fixedly connected to the gear block 82, and the other end of the limit shaft 81 passes through the feed bin 6 and the torsion spring block 84 and is fixedly connected to the limit handle 85;

[0063] The limiting torsion spring 83 is located between the torsion spring clamping block 84 and the limiting torsion spring 83 , and two ends of the limiting torsion spring 83 are respectively clamped with the inside of the torsion spring clamping block 84 and the gear clamping block 82 .

[0064] When the screw drilling and installation operation is performed, the gear block 82 is engaged with the feed gear 71 to prevent the feed gear 71 from rotating counterclockwise during operation. When the limit handle 85 is turned, the gear block 82 can be driven to rotate through the limit shaft 81. After the gear block 82 rotates, the limit on the feed gear 71 can be released, and then the screw chain can be pulled to make the feed gear 71 rotate counterclockwise so that the screw chain falls off the feed gear 71. After the limit handle 85 is loosened, the limit torsion spring 83 rebounds and drives the gear block 82 to engage the feed gear 71. During operation, The gear clamping and limiting of the feed gear 71 by the gear clamping block 82 can prevent the feed gear 71 from rotating counterclockwise during operation and causing the screw chain to fall off. After the work is completed, the limit on the feed gear 71 by the gear clamping block 82 can be released by toggling the limit handle 85. After the limit on the feed gear 71 is released, the screw chain can be directly removed by pulling the screw chain. The feed gear 71 is limited by the movable gear clamping block 82, which can prevent the screw chain from falling off during operation and can also remove the screw chain in time after the work is completed.

[0065] Embodiment five:

[0066] The difference from the above embodiment is that, please refer to Figure 4 - Fig.11The cutting mechanism 9 includes a cutting bin 91 and a cutting railing 98. The cutting bin 91 is provided inside the feed bin 6. The cutting railing 98 is fixedly installed on the top of the feed bin 6. A telescopic spring 96 is fixedly installed inside the cutting bin 91. A telescopic sleeve 97 is fixedly installed inside the telescopic spring 96. The movable end of the telescopic sleeve 97 is fixedly connected to a cutting telescopic rod 95. One end of the cutting telescopic rod 95 is fixedly connected to a cutting blade 92. A cutting connecting rod 93 is fixedly installed outside the cutting blade 92. A cutting block 94 is installed on the top of the cutting connecting rod 93.

[0067] The cutting telescopic rod 95 is slidably installed inside the telescopic spring 96 through the telescopic sleeve 97, one end of the cutting telescopic rod 95 is connected to the telescopic sleeve 97, and the other end of the telescopic sleeve 97 is fixedly connected to the cutting blade 92;

[0068] The cutting blade 92 is slidably installed inside the cutting bin 91 through a cutting telescopic rod 95 and a telescopic spring 96. Two cutting connecting rods 93 and a cutting telescopic rod 95 are installed outside the cutting blade 92. Both cutting telescopic rods 95 are connected with a telescopic sleeve 97 and a telescopic spring 96. The tops of the two cutting connecting rods 93 pass through the feed bin 6 and are fixedly connected with the cutting block 94.

[0069] The cutting block 94 includes a lower block 941, the bottom of which is fixedly connected to the cutting connecting rod 93, a block shaft 942 is rotatably mounted inside the lower block 941, and an upper block 943 and a block torsion spring 944 are rotatably mounted outside the block shaft 942;

[0070] The lower clamping block 941 and the upper clamping block 943 are rotated through the clamping block shaft 942, and the two ends of the clamping block torsion spring 944 are respectively connected to the lower clamping block 941 and the upper clamping block 943, the bottom of the lower clamping block 941 is fixedly connected to the two cutting connecting rods 93, and the bottom of the lower clamping block 941 is in contact with the top of the feed bin 6.

[0071] When the feed bin 6 slides forward inside the feed chute 4, it can drive the screw chain belt to rise through the feed mechanism 7 to feed the screw chain belt. When the feed bin 6 moves, it drives the cutting block 94 to move synchronously. When the cutting block 94 moves, it contacts the feed chute 4, and under the pressure of the feed chute 4, the upper block 943 can rotate along the block rotating shaft 942 and compress the block torsion spring 944, so that the feed chute 4 passes over the cutting block 94. After the feed chute 4 passes over the cutting block 94, the block torsion spring 944 rebounds. When the feed bin 6 slides reversely inside the feed chute 4, the feed chute 4 can be engaged with the cutting block 94 and drive the cutting block 94 to move forward. When the cutting block 94 moves, it can drive the cutting blade 92 to cut the excess screw chain belt through the cutting connecting rod 93. During the movement of the cutting blade 92, the telescopic spring 96 is compressed. The cutting block 94 is compressed, and after the cutting block 94 moves to the position of the cutting rail 98, the upper block 943 rotates along the block shaft 942 under the pressure of the cutting rail 98. After the upper block 943 rotates, the overall height of the cutting block 94 is reduced. After the height of the cutting block 94 is reduced, the feeding chute 4 passes over the cutting block 94. After the cutting block 94 is no longer engaged with the feeding chute 4, the telescopic spring 96 rebounds and drives the cutting block 94 to move in the opposite direction through the cutting blade 92 and the cutting connecting rod 93. When the feed bin 6 slides forward inside the feeding chute 4, it drives the screw chain belt to rise to complete the feeding of the screw. When the feed bin 6 slides reversely inside the feeding chute 4, it can drive the cutting blade 92 to cut the excess screw chain belt through the feeding chute 4, thereby preventing the excess screw chain belt from swinging during the work process and affecting the drilling and installation operation of the screws.

[0072] Embodiment six:

[0073] A chain screw feeding device and feeding process for a screw gun, using the chain screw feeding device for a screw gun as described in the first embodiment, comprises the following steps:

[0074] When working, first insert the screw gun into the screw gun connecting mechanism 3, and connect the screw gun through the screw gun connecting mechanism 3;

[0075] Then the screw chain is passed through the feed slot 2 and the feed bin 6 and is engaged with the feed gear 71;

[0076] Then, the screw limit block 11 is pressed against the wall surface to drive the feed bin 6 to slide inside the feed chute 4 to perform screw feeding and drilling installation;

[0077] After the screws are drilled and installed, the feed bin 6 slides in the reverse direction inside the feed chute 4 and drives the cutting mechanism 9 to cut the excess screw chain;

[0078] After the work is completed, the restriction on the feeding mechanism 7 can be released by the limiting mechanism 8, so that the screw chain belt can be removed from the feeding mechanism 7.

[0079] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chain screw feeding device for a screw gun, comprising a device body (1), a feeding chute (4), a feeding bin (6) and a screw stop block (11), wherein the feeding chute (4) is fixedly installed inside the device body (1), the feeding bin (6) is slidably installed inside the feeding chute (4), and the screw stop block (11) is installed outside the feeding bin (6), characterized in that: A feed groove (2) is provided on the outside of the device body (1), a screw gun connection mechanism (3) is installed inside the device body (1), a feed spring (5) is installed inside the feed groove (2), a movable end of the feed spring (5) is connected to a feed bin (6), a feed mechanism (7) is installed inside the feed bin (6), a limiting mechanism (8) is installed inside the feed bin (6), a cutting mechanism (9) is provided on the top of the feed bin (6), a limiting block (10) is slidably installed inside the feed bin (6), and a screw limiting block (11) is slidably installed outside the feed bin (6); A slide groove is provided on one side of the feed slide groove (4), and one end of the feed mechanism (7) passes through the feed bin (6) and the slide groove on the side of the feed slide groove (4); The feeding mechanism (7) comprises a feeding gear (71), the feeding gear (71) is rotatably mounted inside the feeding bin (6), and two sides of the feeding gear (71) are respectively provided with an inclined clamping block and an inclined clamping groove, the inclined clamping block on one side of the feeding gear (71) can limit the rotation direction of the feeding gear (71), and the limiting mechanism (8) is clamped with the unidirectional inclined clamping groove on one side of the feeding gear (71); The screw gun connection mechanism (3) can connect the inserted screw gun, and the chain screw can be fixed by the feed gear (71) after passing through the feed groove (2) and the feed bin (6). When the screw limit block (11) is pressed against the wall surface, it can drive the feed bin (6) to slide forward inside the feed chute (4). When the feed bin (6) slides inside the feed chute (4), the feed spring (5) can be compressed. When the feed bin (6) slides forward, the feed mechanism (7) can be in the feed chute (4). The feed gear (71) rotates under the restriction of the externally provided slide groove. When the feed gear (71) rotates, it can drive the chain belt screw to rise. During the extrusion process, the screw gun contacts the screw and drills the screw into the wall surface. Then, the screw limit block (11) leaves the wall surface and the feed spring (5) rebounds. When the feed spring (5) rebounds, it drives the feed bin (6) to slide in the opposite direction inside the feed slide groove (4). When the feed bin (6) slides in the opposite direction, it can drive the cutting mechanism (9) through the feed slide groove (4) to cut off the chain belt without screws.

2. A chain screw feeding device for a screw gun according to claim 1, characterized in that: The limit block (10) is slidably mounted inside the feed bin (6), one end of the limit block (10) passes through the feed bin (6) to form a protrusion on one side of the feed bin (6), the screw limit block (11) is slidably mounted outside the feed bin (6), and one side of the screw limit block (11) is provided with a plurality of equidistant circular holes; One end of the limit block (10) passes through the feed bin (6) and is engaged with a circular hole on the side of the screw limit block (11).

3. A chain screw feeding device for a screw gun according to claim 1, characterized in that: The feeding mechanism (7) comprises a gear shaft (72) and a transmission shaft (74), wherein the gear shaft (72) and the transmission shaft (74) are both rotatably mounted inside the feeding bin (6), the feeding gear (71) is rotatably mounted outside the gear shaft (72), a shaft clamping block (73) is fixedly mounted outside the gear shaft (72), and a transmission connecting block (75) is fixedly mounted outside the transmission shaft (74); The distance between the external teeth of the feed gear (71) is equal to the distance between the openings on the screw chain.

4. A chain screw feeding device for a screw gun according to claim 3, characterized in that: The transmission connection block (75) is rotatably mounted inside the feed bin (6) via a transmission shaft (74); one end of the transmission connection block (75) passes through the feed bin (6) and is engaged with a slide groove on a side of the feed slide groove (4); and the other end of the transmission connection block (75) is engaged with a shaft block (73); An inclined clamping block is provided on one side of the gear shaft (72); the inclined direction of the inclined clamping block on the gear shaft (72) is opposite to the inclined direction of the inclined clamping block on the feed gear (71); and the one-way clamping block provided on one side of the feed gear (71) is engaged with the one-way clamping block on one side of the gear shaft (72).

5. A chain screw feeding device for a screw gun according to claim 1, characterized in that: The limiting mechanism (8) comprises a limiting rotating shaft (81), a limiting torsion spring (83) and a torsion spring clamping block (84); the limiting rotating shaft (81) is rotatably mounted inside the feeding bin (6); the torsion spring clamping block (84) is fixedly mounted on the inner side wall of the feeding bin (6); the limiting torsion spring (83) is mounted outside the limiting rotating shaft (81); one end of the limiting rotating shaft (81) is fixedly connected to a gear clamping block (82); and the other end of the limiting rotating shaft (81) is fixedly connected to a limiting handle (85); One side of the gear clamping block (82) is clamped with an inclined clamping block provided outside the feed gear (71).

6. A chain screw feeding device for a screw gun according to claim 5, characterized in that: One end of the limit rotating shaft (81) is fixedly connected to the gear clamp (82), and the other end of the limit rotating shaft (81) passes through the feed bin (6) and the torsion spring clamp (84) and is fixedly connected to the limit handle (85); The limiting torsion spring (83) is located between the torsion spring clamping block (84) and the limiting torsion spring (83), and the two ends of the limiting torsion spring (83) are respectively clamped with the inside of the torsion spring clamping block (84) and the gear clamping block (82).

7. A chain screw feeding device for a screw gun according to claim 6, characterized in that: The cutting mechanism (9) comprises a cutting chamber (91) and a cutting railing (98); the cutting chamber (91) is provided inside the feeding chamber (6); the cutting railing (98) is fixedly installed on the top of the feeding chamber (6); a telescopic spring (96) is fixedly installed inside the cutting chamber (91); a telescopic sleeve (97) is fixedly installed inside the telescopic spring (96); a movable end of the telescopic sleeve (97) is fixedly connected to a cutting telescopic rod (95); one end of the cutting telescopic rod (95) is fixedly connected to a cutting blade (92); a cutting connecting rod (93) is fixedly installed outside the cutting blade (92); a cutting block (94) is installed on the top of the cutting connecting rod (93).

8. A chain screw feeding device for a screw gun according to claim 7, characterized in that: The cutting telescopic rod (95) is slidably mounted inside the telescopic spring (96) via a telescopic sleeve (97), one end of the cutting telescopic rod (95) is connected to the telescopic sleeve (97), and the other end of the telescopic sleeve (97) is fixedly connected to the cutting blade (92); The cutting blade (92) is slidably mounted inside the cutting bin (91) via a cutting telescopic rod (95) and a telescopic spring (96); two cutting connecting rods (93) and a cutting telescopic rod (95) are mounted outside the cutting blade (92); the two cutting telescopic rods (95) are both connected to a telescopic sleeve (97) and a telescopic spring (96); the tops of the two cutting connecting rods (93) pass through the feed bin (6) and are fixedly connected to the cutting block (94).

9. A chain screw feeding device for a screw gun according to claim 8, characterized in that: The cutting block (94) comprises a lower block (941), the bottom of which is fixedly connected to the cutting connecting rod (93), a block rotating shaft (942) is rotatably mounted inside the lower block (941), and an upper block (943) and a block torsion spring (944) are rotatably mounted outside the block rotating shaft (942); The lower clamping block (941) and the upper clamping block (943) are rotatably connected via a clamping block rotating shaft (942); the two ends of the clamping block torsion spring (944) are respectively connected to the lower clamping block (941) and the upper clamping block (943); the bottom of the lower clamping block (941) is fixedly connected to two cutting connecting rods (93); and the bottom of the lower clamping block (941) is in contact with the top of the feed bin (6).

10. A chain screw feeding device for a screw gun and a feeding process, using the chain screw feeding device for a screw gun as described in any one of claims 1 to 9.

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