Screw feeding machine

Abstract

The utility model discloses a screw feeding machine which comprises a machine box, a stock bin, a feeding assembly, a linear feeder and a material distributing assembly. The material distributing assembly comprises a material distributor shell with a material distributing outlet, a material distributing block arranged in the material distributor shell in a left-right sliding mode and provided with a material distributing inlet and a first driving mechanism, the material distributing inlet is communicated with or disconnected from the material distributing outlet through sliding of the material distributing block, and a supporting piece with a guide pin is arranged on the material distributing block in a front-back sliding mode. The distributor shell is provided with an inclined guide groove used for limiting the sliding position of the guide pin and a screw guide groove extending leftwards and rightwards. A sliding groove is formed in the upper end face of the material distributing block in the front-back direction, the sliding groove extends and communicates with the left side or the right side of the material distributing inlet so that the upper end face of the material distributing inlet can be divided into two planes of different heights, a semi-U-shaped supporting opening is formed in one side of the supporting piece in a concave mode, and the supporting piece is in sliding fit with the sliding groove so that the semi-U-shaped supporting opening can move to the position above the material distributing inlet to support screw caps. The upper end face of the supporting piece is flush with the higher side plane of the distributing inlet. According to the structure, screws are not prone to being hung, and screw feeding smoothness is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to screw tooling technical field especially relates to a screw feeder. BACKGROUND

[0002] The screw machine is a kind of small-sized machinery of automatic locking screw, its action structure can generally be divided into feeding mechanism, electric screwdriver and the screw conveying pipeline connected between feeding mechanism and electric screwdriver, corresponding feeding mechanism is responsible for screening and providing screw, corresponding electric screwdriver is responsible for taking screw and locking screw, and corresponding screw conveying pipeline is responsible for conveying screw to electric screwdriver according to set direction;Therefore, the generation of screw machine improves work efficiency and reduces manual work intensity.

[0003] The screw machine feeding mechanism on the market generally includes cabinet, stock bin, feeding assembly, linear feeder, distribution assembly, the feeding assembly is conveyed to the linear feeder of being connected with it in set direction with screw one by one arrangement, then single grain is conveyed by distribution assembly to wait for next screw locking again.The existing distribution assembly is mostly used the structure disclosed in patent ZL201921344159.X, makes distribution block slide left and right in distribution ware casing through distribution drive mechanism, realizes the action switching of feeding state and distribution state, wherein, the supporting piece for supporting screw is slidably matched on screw distribution block through chute, guiding pin is installed on the supporting piece top, and the inclined chute for limiting guiding pin is opened on distribution ware casing.Distribution block is in feeding state, supporting piece is located close to distribution inlet side, is in distribution state, supporting piece moves to the side far from distribution inlet under the action of guiding pin and inclined chute.In the above structure, the supporting piece is generally designed as U-shaped structure, the plane of distribution inlet is lower than the plane of supporting piece, so that when supporting piece is far from distribution inlet, step will appear between distribution inlet and supporting piece, which is easy to cause screw cap to hang on the side of distribution inlet, and affect normal feeding. SUMMARY

[0004] The utility model provides a screw feeder not easy to hang screw to overcome the above problems, improve screw feeding smoothness.

[0005] The technical scheme of the utility model is:

[0006] The utility model relates to a screw feeder, including case, storehouse, feeding subassembly, linear feeder, distribution subassembly, the distribution subassembly includes the distribution feeder casing with distribution outlet, the distribution block of left and right sliding in the distribution feeder casing and the first drive mechanism of connecting distribution block, the distribution block is opened with and the distribution feeder casing upper end surface is opened with the distribution inlet of the distribution outlet of the distribution inlet through the slippage of distribution block and is communicated or is cut off, and the distribution block is provided with the supporting piece for supporting the screw cap along the front and back sliding of distribution block and is fixed with the guide pin on the supporting piece, the distribution feeder casing upper end surface is opened with the inclined guide groove for limiting the slippage position of guide pin and the screw guide groove along the left and right direction extension, and its characterized in that:

[0007] The distribution block upper end surface recessed has the sliding groove along the front and back direction, the sliding groove extends and is communicated to the left side portion or the right side portion of distribution inlet to make the distribution inlet upper end surface divide into two planes of different heights, one side of the supporting piece is recessed with the half U-shaped mouth and the supporting piece and the sliding groove slippage cooperate to make the half U-shaped mouth move to the distribution inlet above to support the screw cap, and the supporting piece upper end surface is flush with the plane of the higher side of distribution inlet.

[0008] In the above structure, the utility model discloses the supporting piece mouth shape is optimized and improved and the distribution inlet end surface structure is designed correspondingly, when the distribution block slides to the distribution outlet direction, the supporting piece gradually moves away from the distribution inlet under the guidance of the inclined guide groove, because one side plane of the distribution inlet is flush with the supporting piece, avoids the phenomenon that the screw is easy to hang on the distribution inlet upper end surface after the traditional U-shaped mouth supporting piece backtracking, can ensure that the screw falls into the distribution inlet smoothly, improves the smoothness of screw feeding.

[0009] Further, in the screw feeder provided by the utility model, the distribution feeder casing is further provided with a discharge plate and a second drive mechanism connected with the discharge plate, at least two discharge ports are formed in the discharge plate, and a discharge pipe is connected to each discharge port, and the discharge plate is arranged at the bottom of the distribution feeder casing and slidable forward and backward, so that the distribution outlet is selectively communicated with the discharge ports. This structure can switch the communication between the distribution outlet and different discharge ports according to the use requirement, so as to realize various discharge modes such as one-out-one, one-out-two and the like.

[0010] Further, in the screw feeder provided by the utility model, the discharge ports include a first discharge port and a second discharge port, and the distribution feeder casing is provided with a first air blowing connector and a second air blowing connector; a first air outlet hole is formed in the bottom of the distribution feeder casing and communicated with the first air blowing connector, the first discharge port is communicated with the first air outlet hole through the slippage of the discharge plate, and the first discharge port is used for air blowing to the discharge pipe thereof;

[0011] The bottom of the distribution block is provided with a ventilation groove, the shell of the distributor is provided with a second air outlet hole communicated with the second blowing joint, and the ventilation groove can realize the communication between the second air outlet hole and the distribution outlet through the sliding of the distribution block, so that the air blowing to the second discharge pipe is realized when the distribution outlet is communicated with the second discharge pipe.

[0012] In the structure, two air paths are formed to blow air to the two discharge pipes respectively, so that the screws falling into the discharge pipes are conveyed downward, one of the air blowing paths is sequentially communicated with the first blowing joint, the first air outlet hole, the first discharge port and the air outlet pipe, and the other air blowing path is sequentially communicated with the second blowing joint, the second air outlet hole, the ventilation groove, the distribution outlet, the second discharge port and the air outlet pipe.

[0013] Further, in the screw feeder, the first driving mechanism and the second driving mechanism are both air cylinders.

[0014] Further, in the screw feeder, the left and right side plates of the case are aluminum panels, and the upper end face and the front end face of the case each include at least one aluminum panel connected between the left and right side plates. The use of aluminum panels reduces the overall weight, and compared with the traditional use of thin sheet metal panels, the aluminum panels are less prone to deformation, have higher flatness and are more aesthetically pleasing.

[0015] Further, in the screw feeder, the upper end face of the case is provided with a hopper inlet corresponding to the hopper, and a hopper cover is hingedly arranged on the case and can be turned to cover the hopper inlet.

[0016] Further, in the screw feeder, a front opening panel is further hingedly arranged on the front end of the upper end face of the case, the front opening panel extends forward and covers at least a portion of the front end face of the case, facilitating quick maintenance.

[0017] Further, in the screw feeder, a partition is arranged in the middle of the case to divide the inner cavity of the case into a mechanical cavity and an electrical cavity from top to bottom, the hopper, the feeding assembly and the linear feeder are arranged in the mechanical cavity, and the electrical assembly is arranged in the electrical cavity. By reasonable layout, the mechanical and electrical parts are integrated in the case and arranged to be isolated from each other without interference, improving safety and reliability, and facilitating maintenance and repair.

[0018] Further, in the screw feeder, a plurality of limiting grooves are recessed on the left and right side plates of the case, limiting protrusions are protruded on the corresponding positions of the bottom plate and the partition of the case, and the limiting protrusions are clamped in the limiting grooves. By increasing the limiting protrusions and the limiting grooves, multi-point limiting is realized to ensure the installation alignment of the side plates of the case and improve the assembly precision and convenience.

[0019] Further, the air filter pressure stabilizer is fixed outside the rear end surface of the case, and the functions of filtering and pressure stabilizing are integrated.

[0020] The utility model discloses the beneficial effect is:

[0021] 1, the utility model discloses optimizing the piece of supporting mouth, adopt half U shape supporting mouth to replace the traditional U shape mouth, and the one side plane of material distribution import is designed to be flush with the piece of supporting, compared with the traditional material distribution structure, can effectively reduce the probability of screw hanging on one side of material distribution import, ensure that the screw falls smoothly, improve the smoothness of screw supply.

[0022] 2, the utility model discloses wide use range, can possess one out one, one out two and a variety of modes, can carry out material distribution feeding alternately through the flexible switching of discharge port, and the working efficiency is higher.

[0023] 3, the utility model discloses the panel of aluminium is used in the case outer plate in many places, compared with the traditional thin sheet metal panel, can reduce the overall weight, also has good panel flatness, avoids the deformation uneven caused in the processing process, has more beautiful high-grade appearance effect. DRAWINGS

[0024] Figure 1 It is the three-dimensional schematic view of the utility model.

[0025] Figure 2 It is the structure schematic view of the utility model after removing the right side plate and bin cover.

[0026] Figure 3 It is the structure schematic view of the right side plate of the utility model.

[0027] Figure 4 It is the structure schematic view of the material distribution assembly after removing the upper end panel of the material distributor shell.

[0028] Figure 5 It is the explosion schematic of the material distribution assembly Figure 1 .

[0029] Figure 6 It is the explosion schematic of the material distribution assembly Figure 2 .

[0030] Figure 7 It is the structure schematic view of the material distributor shell after removing the upper end panel. DETAILED DESCRIPTION

[0031] The utility model will be further described with reference to the drawings:

[0032] Refer to Figure 1 , Figure 2As shown, the screw feeder of the embodiment comprises a cabinet 1, a stock bin 2, a feeding assembly, a linear feeder 3 and a distributing assembly. The middle part of the cabinet 1 is provided with a partition plate 4, so that the inner cavity of the cabinet 1 is divided into a mechanical cavity 101 and an electrical cavity 102 from top to bottom. The stock bin 2, the feeding assembly and the linear feeder 3 are installed in the mechanical cavity 101, and the electrical cavity 102 is provided with an electrical assembly. The outer side of the rear end surface of the cabinet 1 is fixed with an air filter stabilizer 5, which is connected with the electrical assembly to realize the air source filtering and pressure stabilizing functions.

[0033] Referring to Figures 4-7 The distributing assembly comprises a distributor housing 6 provided with a distributing outlet 601, distributing blocks 7 slidably arranged in the distributor housing 6 and a first driving mechanism 8 connected with the distributing blocks 7. The first driving mechanism 8 is a pneumatic cylinder. The distributing blocks 7 are provided with a distributing inlet 701 which is connected with the output end of the linear feeder 3 and penetrates through the distributing blocks 7. The distributing inlet 701 is communicated or cut off with the distributing outlet 601 through the sliding of the distributing blocks 7. A supporting piece 9 for supporting the screw cap is arranged on the distributing blocks 7 in front and back sliding mode, and a guide pin 10 is fixed on the supporting piece 9. The upper end surface of the distributor housing 6 is provided with an inclined guide groove 602 for limiting the sliding position of the guide pin 10 and a screw guide groove 603 extending in the left and right directions.

[0034] The upper end surface of the distributing blocks 7 is recessed in front and back directions and provided with a sliding groove 702. The sliding groove 702 extends and communicates with the left or right part of the distributing inlet 701, so that the upper end surface of the distributing inlet 701 is divided into two planes with different heights. One side of the supporting piece 9 is recessed with a half U-shaped supporting opening. The supporting piece 9 is slidably matched with the sliding groove 702, so that the half U-shaped supporting opening is moved above the distributing inlet 701 to support the screw cap. The upper end surface of the supporting piece 9 is flush with the higher side of the plane of the distributing inlet 701. In this embodiment, since the probability of hanging the screw on the left plane of the distributing inlet 701 is greater during the left distributing process of the distributing blocks 7, the sliding groove 702 is preferably connected with the right part of the distributing inlet 701, and the left plane of the distributing inlet 701 is arranged as the higher side, so that the effect is more ideal.

[0035] The distributor housing 6 is further provided with a discharging plate 11 and a second driving mechanism 12 connected with the discharging plate 11. The second driving mechanism 12 is a pneumatic cylinder. The discharging plate 11 is provided with two discharging outlets. Specifically, the discharging outlets comprise a first discharging outlet 1101 and a second discharging outlet 1102. Each discharging outlet is connected with a discharging pipe. The discharging plate 11 is arranged at the bottom of the distributor housing 6 in front and back sliding mode, so that the distributing outlet 601 is selectively communicated with the discharging outlets. It should be noted that only one discharging pipe is drawn in the figure of the embodiment.

[0036] In order to realize the screw blowing conveying of two discharge pipes, the structure is designed with corresponding air path conveying structure. Specifically, the first blowing joint 13 and the second blowing joint 14 are arranged on the distributor shell 6; the first air outlet hole 604 in communication with the first blowing joint 13 is arranged at the bottom of the distributor shell 6, the first discharge port 1101 can be communicated with the first air outlet hole 604 through the sliding of the discharge plate 11, and the first discharge port 1101 is used for blowing air to the discharge pipe. The air passage 703 is arranged at the bottom of the distributor block 7, the second air outlet hole 605 in communication with the second blowing joint 14 is arranged on the distributor shell 6, the air passage 703 can realize the communication between the second air outlet hole 605 and the distributor outlet 601 through the sliding of the distributor block 7, and is used for blowing air to the discharge pipe of the second discharge port 1102 when the distributor outlet 601 is communicated with the second discharge port 1102.

[0037] In the embodiment, the left and right side plates of the case 1 adopt aluminum panels, and the upper end face and the front end face of the case 1 each include at least one aluminum panel connected between the left and right side plates. The conventional structure is mostly thin sheet metal panel structure, which is easy to deform and have uneven surface during processing. The aluminum panel used in the embodiment has the effects of light weight and improved panel flatness of the case 1, and has a more beautiful and high-grade appearance effect.

[0038] Referring to Figure 2 , the upper end face of the case 1 is provided with a bunker inlet corresponding to the bunker, and the case 1 is hingedly provided with a bunker cover 15 and can be turned to cover the bunker inlet. The front end of the upper end face of the case 1 is also hingedly provided with a front opening panel 16, which extends forward and covers at least part of the front end face of the case 1. The front opening panel 16 and the bunker cover 15 are opened and turned, which is convenient for maintenance, repair, feeding and other operations, and has higher convenience.

[0039] In order to enhance the assembly effect between the panels of the case 1, in combination with Figure 2 and Figure 3 , a plurality of limiting grooves 103 are concavely arranged on the left and right side plates of the case 1, and limiting protrusions 104 are protrusively arranged on the corresponding positions of the bottom plate and the partition plate 4 of the case 1. The limiting protrusions 104 are clamped in the limiting grooves 103, and the limiting protrusions 104 and the limiting grooves 103 are matched to realize the quick alignment between the panels, and ensure that the case 1 is assembled accurately in place.

[0040] The structure can realize the switching of one-out-one and one-out-two modes through the selection of two discharge ports, and has higher use flexibility. When one-out-two is selected, the first discharge port 1101 is first adjusted to be aligned with the distribution outlet 601, the screw falls into the distribution inlet 701 of the distribution block 7 from the linear feeder 3, the screw cap is surrounded and supported by the half-U-shaped supporting port 901 of the supporting piece 9 and the higher side plane of the distribution inlet 701, the first driving mechanism 8 drives the distribution block 7 to slide to the left and aligns the distribution inlet 701 with the distribution outlet 601; at the same time, under the action of the inclined guide groove 602, the supporting piece 9 gradually moves away from the distribution inlet 701 during the sliding of the distribution block 7, so that the screw can pass through the distribution inlet 701, the distribution outlet 601 and the first discharge port 1101 in sequence and enter the corresponding discharge pipe. Then, the second driving mechanism 12 drives the first discharge port 1101 to slide to the position of the first air outlet hole 604, and the second discharge port 1102 can also be aligned with the distribution outlet 601 by reasonably designing the distance between the two discharge ports and the air outlet hole. The screw is blown and conveyed to the discharge pipe through the first blowing connector 13, the first air outlet hole 604 and the first discharge port 1101. The first driving mechanism 8 drives the distribution block 7 to move to the right and back to its original position to receive the next screw and repeat the distribution process, so that the screw falls into the discharge pipe of the second discharge port 1102.

[0041] Then, the first driving mechanism 8 drives the distribution block 7 to move to the right and back to its original position, and during the movement of the distribution block 7, the air paths of the second blowing connector 14, the second air outlet hole 605, the air passage 703, the distribution outlet 601, the second discharge port 1102 and the discharge pipe are connected, and the screw in the discharge pipe is blown and conveyed. Then, the second driving mechanism 12 drives the discharge plate 11 to move back to its original position, and the first discharge port 1101 is aligned with the distribution outlet 601 again, and the cycle is repeated. The above is one-out-two single distribution, and one screw is alternately output from each pipe. The structure can also adjust the number of screws discharged from each discharge pipe each time according to actual needs, so as to realize the output of different numbers of screws from each pipe and alternately cycle.

[0042] The specific embodiments described in the present application are only illustrative of the principles and effects of the application, and are not intended to limit the application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed by the application are still covered by the claims of the application.

Claims

1. A screw feeder, comprising a chassis, a hopper, a feeding assembly, a linear feeder, and a distributing assembly, wherein the distributing assembly includes a distributing housing with a distributing outlet, a distributing block slidably disposed within the distributing housing, and a first driving mechanism connecting the distributing block; the distributing block has a distributing inlet that connects to the output end of the linear feeder and extends vertically through it, and the distributing inlet is connected to or disconnected from the distributing outlet by the sliding of the distributing block; a support plate for supporting screw caps is slidably disposed on the distributing block along its front-back direction, and a guide pin is fixed on the support plate; the upper end face of the distributing housing has an inclined guide groove for limiting the sliding position of the guide pin and a screw guide groove extending in the left-right direction, characterized in that: The upper surface of the material distribution block is recessed with a sliding groove along the front-to-back direction. The sliding groove extends and connects to the left or right part of the material distribution inlet, so that the upper surface of the material distribution inlet is divided into two planes of different heights. One side of the support plate is recessed with a semi-U-shaped support opening, and the support plate slides and cooperates with the sliding groove to move the semi-U-shaped support opening above the material distribution inlet to support the screw cap. The upper surface of the support plate is flush with the plane of the higher side of the material distribution inlet.

2. The screw feeder according to claim 1, characterized in that: The distributor housing is also provided with a discharge plate and a second drive mechanism connected to the discharge plate. The discharge plate has at least two discharge ports and a corresponding discharge pipe is connected to each discharge port. The discharge plate is slidably disposed at the bottom of the distributor housing so that the discharge outlet is selectively connected to the discharge port.

3. The screw feeder according to claim 2, characterized in that: The discharge port includes a first discharge port and a second discharge port. The distributor housing is provided with a first air blowing connector and a second air blowing connector. The bottom of the distributor housing is provided with a first air outlet that communicates with the first air blowing connector. The first discharge port can communicate with the first air outlet through the sliding of the discharge plate, and is used to blow air into the discharge pipe of the first discharge port. The bottom of the material distribution block is provided with a ventilation groove, and the housing of the material distributor is provided with a second air outlet that communicates with the second air blowing connector. The ventilation groove can achieve the connection between the second air outlet and the material distribution outlet through the sliding of the material distribution block, and is used to blow air into the discharge pipe of the second discharge outlet when the material distribution outlet is connected to the second discharge outlet.

4. The screw feeder according to claim 2, characterized in that: Both the first drive mechanism and the second drive mechanism use cylinders.

5. The screw feeder according to claim 1, characterized in that: The left and right side panels of the chassis are made of aluminum panels, and the top and front sides of the chassis each include at least one aluminum panel connected between the left and right side panels.

6. The screw feeder according to claim 1, characterized in that: The upper surface of the chassis has a hopper inlet corresponding to the hopper, and the chassis is hinged with a hopper cover that can be flipped over to cover the hopper inlet.

7. The screw feeder according to claim 1, characterized in that: The upper front end of the chassis is also hinged to a front-opening panel, which extends forward and at least covers a portion of the front end face of the chassis.

8. The screw feeder according to claim 1, characterized in that: The chassis has a partition in the middle, which divides the inner cavity of the chassis into a mechanical cavity and an electrical cavity from top to bottom. The hopper, feeding assembly and linear feeder are installed in the mechanical cavity, and the electrical components are installed in the electrical cavity.

9. The screw feeder according to claim 8, characterized in that: The left and right side panels of the chassis are recessed with multiple limiting grooves, and the bottom plate and partition of the chassis are protruded with limiting protrusions at corresponding positions. The limiting protrusions are engaged in the limiting grooves.

10. The screw feeder according to claim 1, characterized in that: An air filter voltage regulator is fixed to the outer side of the rear end face of the chassis.

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