Quick insertion type automatic tray feeder

Abstract

The utility model discloses a quick-inserting type automatic tray feeder which comprises a tray box, the tray box comprises a main body structure frame, a lifting platform and a tray frame, and a plurality of trays capable of being pulled out are arranged in the tray frame at intervals in the vertical direction; the carrying track extends in the horizontal direction, is provided with a first end connected with the main body structure frame and a second end opposite to the first end and away from the main body structure frame, and comprises a track frame, a conveying belt, a first driving mechanism and a magnetic attraction traction device. The magnetic attraction traction device can attract any chassis when the magnetic attraction traction device is located at the first end and is in butt joint with the chassis, and the trays are taken out of the tray frame and conveyed to the second end from the first end under transmission driving of the conveying belt. The structure is simple, the cost is low, and the use requirements of small enterprises are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of electronic processing, and particularly relates to a quick-insert automatic tray feeder. Background Art

[0002] An SMT mounter is an automatic processing device that can accurately place various types of components on the surface of a PCB board (substrate) printed with solder paste or patch glue. It has the advantages of high working efficiency and good patching quality.

[0003] In order to mount BGA (Ball Grid Array) or QFP (Quad Flat Package) and special-shaped components, the SMT mounter needs tray feeding. Currently, there are two widely used types:

[0004] 1. A fully automatic tray box, which contains 20 trays that can be automatically switched. It is convenient to use, has perfect functions, and high production efficiency, but it is expensive and requires a separate vacant slot for installation in the machine, and some machine models cannot use it. For some small and medium-sized manufacturers or those with low tray feeding requirements, the investment is large and the return is small, so the purchase desire is low.

[0005] 2. A manual tray, with a fixed tray position and only one tray. It is inexpensive, but the number of components that can be supplied at one time is very small, the material change is troublesome, the production efficiency is low, and it occupies a large amount of space inside the machine, and there are some occasions where the production requirements cannot be met. Therefore, in order to solve the above technical problems, the present utility model comes into being. Summary of the Utility Model

[0006] Aiming at at least one of the above existing technical problems, the purpose of the present utility model is to provide a quick-insert automatic tray feeder.

[0007] The technical solution of the present utility model is as follows:

[0008] One of the purposes of the present utility model is to provide a quick-insert automatic tray feeder, including:

[0009] A tray box, which includes a main structural frame, a lifting table that can be lifted vertically in the main structural frame, and a tray rack supported on the lifting table. Inside the tray rack, a plurality of chassis for fixing and placing trays that can be pulled out are arranged at intervals vertically.

[0010] A handling track, which extends horizontally and has a first end connected to the main structural frame and a second end opposite to the first end and away from the main structural frame. It includes two relatively parallel and horizontally spaced track frames, a conveyor belt disposed between the two track frames and capable of reciprocating transmission horizontally, a first driving mechanism disposed on the track frames to drive the conveyor belt to reciprocate, and a magnetic attraction traction device fixed on the conveyor belt and moving synchronously therewith. The magnetic attraction traction device can adsorb the chassis when it is in the position of the first end and docks with any one of the chassis, and under the drive of the conveyor belt, take out the chassis from the tray rack and convey it from the first end to the second end.

[0011] Preferably, the lifting platform includes a tray fixing base having at least a horizontal support surface, a lead screw extending vertically, and a second driving mechanism connected to the lead screw to drive the lead screw to rotate about a vertical line. The tray fixing base is connected to a sliding member slidably disposed on the lead screw to move vertically along the axis of the lead screw when the lead screw is driven to rotate.

[0012] Preferably, the lifting platform further includes a guiding mechanism for guiding the vertical lifting movement of the tray fixing base.

[0013] Preferably, a horizontal fixing plate is provided at the bottom of the main structural frame. The second driving mechanism is fixed on the fixing plate, and its driving end faces upward and is connected to the lead screw. Two relatively parallel and vertically spaced vertical support frames are provided on the fixing plate. A horizontal cross support frame is fixed at the bottom ends of the two vertical support frames. The top end of the lead screw is rotatably connected to the cross support frame. The cross support frame, the fixing plate, and the two vertical support frames jointly define a moving space for the lead screw and the sliding member to move.

[0014] The guiding mechanism includes guide rails extending vertically on the end faces of each vertical support frame facing the tray fixing base, and sliders disposed on the end faces of the tray fixing base facing the guide rails and slidably mating with the guide rails.

[0015] Preferably, a guide plate extending vertically is provided outside the lead screw, and the upper and lower ends of the guide plate are respectively connected to the cross support frame and the fixing plate. The sliding member is slidably mated with the guide plate; and / or

[0016] A plurality of limit sensors are provided at vertically spaced intervals on the opposite side faces of the two vertical support frames. The limit sensors are electrically connected to the second driving mechanism.

[0017] Preferably, the second driving mechanism is a motor.

[0018] Preferably, at least one magnet adsorption point that attracts the magnetic attraction traction device is provided at the bottom of the chassis; and / or

[0019] Multiple chassis can be stacked to change the feeding height at the second end.

[0020] Preferably, the magnetic attraction traction device is an electromagnet whose magnetic force can be controlled by energization and de-energization.

[0021] Preferably, the first driving mechanism is a motor.

[0022] Another object of the present invention is to provide an actual installation machine, including a tray feeding mechanism, and the tray feeding mechanism is the automatic tray of any one of the above.

[0023] Compared with the prior art, the advantages of the present invention are:

[0024] The quick-insert automatic tray feeder of the present invention includes two parts: a tray box and a handling track. A lifting platform is provided on the tray box to lift trays at different heights on the tray rack. The first end of the handling track is connected to the main structural frame of the tray rack, and the second end can be plugged and fixed to a tray loading station such as a fixed supply part or a trolley, realizing quick plug-in connection, improving work efficiency, having a simple structure, low cost, meeting the usage requirements of small enterprises, and at the same time facilitating quick separation of the two when not in use. Description of the Drawings

[0025] The present invention will be further described below in conjunction with the drawings and embodiments:

[0026] Figure 1 is a schematic structural view of the quick-insert automatic tray feeder according to an embodiment of the present invention from an angle;

[0027] Figure 2 is Figure 1 a schematic structural view of another angle of the quick-insert automatic tray feeder of

[0028] Figure 3 is Figure 2 a partial enlarged structural view of part A in

[0029] Figure 4 is Figure 2 a schematic structural view of another angle of the quick-insert automatic tray feeder of

[0030] Figure 5 is a schematic structural view of the tray rack of the quick-insert automatic tray feeder according to an embodiment of the present invention.

[0031] Wherein: 10, pallet box; 11, main structure frame; 12, lifting platform; 121, pallet fixing base; 122, lead screw; 123, second driving mechanism; 124, sliding member; 125, fixing plate; 126, vertical support frame; 127, slider; 128, guide rail; 129, horizontal support frame; 1210, guide plate; 13, pallet rack; 130, slot; 131, chassis; 20, handling track; 21, track frame; 22, first driving mechanism; 23, magnetic attraction traction device; 24, synchronous pulley. Detailed implementation mode

[0032] To make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with the specific implementation modes and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary and are not intended to limit the scope of the present utility model. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0033] See Figures 1 to 5 , a quick-insert automatic pallet feeder according to an embodiment of the present utility model mainly includes two parts: a pallet box 10 and a handling track 20. Among them, the pallet box 10 mainly includes a main structure frame 11, a lifting platform 12 and a pallet rack 13 provided on the lifting platform 12. The main structure frame 11 is a hollow cube frame structure inside. The lifting platform 12 is movably provided inside the main structure frame 11 and can be lifted vertically. The pallet rack 13 is supported on the lifting platform 12 (it can be fixedly connected as a whole, or it can be directly placed, that is, not fixedly connected), and can follow the lifting platform 12 to make lifting movements in the vertical direction. Moreover, the pallet rack 13 is provided with a plurality of (the specific number is not limited, it can be less than 20 in the existing traditional fully automatic pallet box 10 but more than 1 in the existing manual pallet, such as 10) spaced compartments in the vertical direction. Any compartment can place a feeding pallet. The handling track 20 is horizontally arranged on one side of the main structure frame 11. Specifically, the handling track 20 extends horizontally and has two opposite ends. For the convenience of description and distinction, one end is described as the first end, and the other end is described as the second end. The first end is the end connected to the main structure frame 11, that is, the right end as shown in Figure 4 shown, and the second end is the end far from the main structure frame 11, that is, the left end as shown in Figure 4 shown. More specifically, the handling track 20 includes two opposite (that is, as shown in Figure 4Track frames 21 that are arranged in parallel at intervals on the front and back sides (as shown), and a conveyor belt that extends in the direction from the first end to the second end and is drivingly arranged is provided between the two track frames 21. A first driving mechanism 22 for driving the conveyor belt to reciprocally drive in the direction from the first end to the second end is provided on the two track frames 21. A magnetic attraction traction device 23 is provided on the conveyor belt. The magnetic attraction traction device 23 can switch between the first end and the second end following the reciprocal drive of the conveyor belt, and can be docked with the chassis 131 (used for fixedly placing the tray on the chassis 131) on the tray rack 13 fixed on the lifting platform 12 at the first end. Then, the chassis 131 and the tray on the chassis 131 are taken out from the tray rack 13 by magnetic attraction force and are driven by the drive of the conveyor belt to be transmitted to the second end. It should be noted that the second end of the handling track 20 in the embodiment of the present invention can be plugged and fixed with a tray loading station such as a fixed supply part (not shown) or a trolley (not shown), realizing quick plug-in connection, improving work efficiency, having a simple structure, low cost, meeting the use requirements of small enterprises, and at the same time facilitating quick separation of the two when not in use.

[0034] Specifically, as Figures 1 to 4 shown, for the lifting platform 12, it mainly includes a tray fixing base 121, a lead screw 122, and a second driving mechanism 123. For the tray fixing base 121, it can be selected as a horizontal plate, or can also be a plate with at least one horizontal support surface, such as an inverted L-shaped plate. In the embodiment of the present invention, the tray fixing base 121 is preferably an inverted L-shaped plate. The lead screw 122 is arranged vertically and can rotate around the vertical line. The driving end of the second driving mechanism 123 is connected to the lead screw 122 to drive the lead screw 122 to rotate around the vertical line. The connection between the tray fixing base 121 and the lead screw 122 is more specifically connected to a sliding member 124 (such as a nut) that is threadedly connected to the lead screw 122. The second driving mechanism 123 is preferably a motor. The second driving mechanism 123 drives the lead screw 122 to rotate, thereby driving the sliding member 124 on the lead screw 122 to move vertically along the axis of the lead screw 122, and further driving the tray fixing base 121 connected to the sliding member 124 to move up and down vertically. The tray rack 13 is fixed on the tray fixing base 121, so that the tray rack 13 can also move up and down vertically, so that the trays on the chassis 131 at different heights in the tray rack 13 are docked with the first end of the handling track 20, and are transmitted to the first end by the magnetic attraction traction device 23 on the conveyor belt, and the chassis 131 and the tray thereon are adsorbed and taken out under the drive of the conveyor belt and transmitted to the second end to realize tray loading.

[0035] The tray is not shown in the drawings of the present utility model, only the chassis 131 is shown. It is the chassis 131 that is adsorbed together with the magnetic attraction traction device 23. More specifically, preferably at the bottom of the chassis 131, there are magnet adsorption points (not shown) that are attracted to the magnetic attraction traction device 23, such as two circular magnet adsorption points arranged side by side at intervals. The specific number and shape of the magnet adsorption points are not limited, and preferably two are used in the embodiments of the present utility model. For the chassis 131, its height at the second end of the handling track 20 can be changed by stacking the chassis 131. In the embodiments of the present utility model, at most three chassis 131 are stacked and used, so as to realize changing three feeding heights to meet different production requirements.

[0036] Further preferably, in order to ensure the straightness of the lifting movement of the lifting table 12 in the vertical direction, the lifting table 12 in the embodiments of the present utility model further includes a guiding mechanism for guiding the vertical lifting of the tray fixing base 121. For the guiding mechanism, optionally, it includes a slider 127 fixedly connected to the tray fixing base 121 and a vertically extending guide rail 128 that is slidably engaged with the slider 127. More specifically, as Figures 2 to 4As shown, a horizontal fixed plate 125 is provided at the bottom end of the main structure frame 11. The setting of this fixed plate 125 is for two purposes. On the one hand, it is to facilitate the installation and fixation of the second driving mechanism 123 for driving the lead screw 122 to rotate around the vertical line. On the other hand, it is to facilitate the setting of the vertical support frame 126 and the horizontal support frame 129 so as to respectively set the guide rail 128 and fix the top end of the lead screw 122. The second driving mechanism 123 (preferably a motor for driving the lead screw 122 in the conventional way) is fixed at the bottom of the fixed plate 125, and the driving end of the second driving mechanism 123 extends to the bottom end of the fixed plate 125 and is connected to the bottom end of the lead screw 122 through a coupling. Above the fixed plate 125 and on both sides of the lead screw 122, two relatively spaced and vertically extending vertical support frames 126 are respectively provided. At the top end of the vertical support frame 126, a horizontal support frame 129 is provided, and the top end of the lead screw 122 is rotatably arranged on the top horizontal support frame 129. A moving space (not marked) for the lead screw 122 to rotate around the vertical line and the sliding member 124 on the lead screw 122 to move vertically up and down is jointly defined among the two vertical support frames 126, the horizontal support frame 129 and the bottom fixed plate 125. The number of guide rails 128 is two, and they are respectively arranged on the end faces of the two vertical support frames 126 facing the tray fixing base 121, while the slider 127 is arranged on the end face of the tray fixing base 121 facing the vertical support frame 126 (the inverted L-shaped tray fixing base 121 includes a horizontally extending horizontal support surface and a vertically extending vertical support surface connected to one end of the horizontal support surface, and the slider 127 is arranged on this vertical support surface). Regarding the number of sliders 127, there is no limit. In the preferred embodiment of the present utility model, two sliders 127 are spaced on each guide rail 128. Further preferably, the sliding member 124 is also provided with a vertically extending guiding member. Specifically, as Figure 3 shown, on one side of the lead screw 122 facing the tray fixing base 121, a U-shaped guide plate 1210 that surrounds the lead screw 122 and has an opening facing the lead screw 122 side is provided. That is to say, on both sides of the lead screw 122, the guide plate 1210 is respectively provided with a vertically extending guide piece (not marked). The upper and lower ends of the guide plate 1210 are respectively fixedly connected to the top horizontal support frame 129 and the bottom fixed plate 125. And the sliding member 124 on the lead screw 122 is a square sliding block, and two sliding grooves (not shown) corresponding to the two guide pieces on both sides of the guide plate 1210 are respectively opened on both sides of the sliding block. Thus, the straightness of the lifting movement of the tray fixing base 121 and the tray rack 13 thereon is ensured.

[0037] Preferably, a plurality of limit sensors (not shown) are provided on the opposite sides of the two vertical support frames 126 at intervals in the vertical direction. Optionally, the number of limit sensors is ten, corresponding to the number of trays. The limit sensors are electrically connected to the second driving mechanism 123 for the purpose of controlling the lifting height of the tray fixing base 121. More specifically, it is set according to the number of trays, that is, each time it is lifted or lowered, exactly one tray can be docked with the first end of the handling track 20. The specific structure and working principle of the limit sensors are not described and limited, which are prior arts.

[0038] For the magnetic attraction and traction device 23, it is preferably an electromagnet that can control the magnetic force by energizing and de-energizing to realize the extraction and replacement of the chassis 131. When it reaches the first end with the transmission of the conveyor belt, it just generates a suction force with the magnetic attraction point on the chassis 131 at a certain height on the tray rack 13 and adsorbs together. Then the conveyor belt continues to drive to take out the tray from the tray rack 13 and drive it to the second end, and then the tray is taken out from the magnetic attraction and traction device 23 and moved to the designated working position through subsequent operations, and then returns to the first end to continue sucking the next tray. It should be noted that after the previous tray is removed, the lifting platform 12 drives the tray fixing base 121 to rise so that the lower tray is docked with the first end of the handling track 20 to facilitate the magnetic attraction and traction device 23 to return to the first end to suck and remove the tray on this layer.

[0039] For the conveyor belt, as Figure 2 and Figure 4 shown, a synchronous pulley 24 can be provided at each of the first end and the second end of the inner side surface of each track frame 21. A conveyor belt (not shown) is driven on the two synchronous pulleys 24 at the first end and the second end of the inner side surface of each track frame 21. Each conveyor belt is equipped with a first driving mechanism 22. The first driving mechanism 22 is drivingly connected to one of the synchronous pulleys 24 of the corresponding conveyor belt, which can be coaxially connected through a coupling or drivingly connected through a reduction gear set. In the embodiment of the present invention, it is preferably drivingly connected through a reduction gear set. Therefore, Figure 2 it can be seen from the figure that the first driving mechanism 22 is arranged inside the track frame 21 and near the first end, and the two synchronous pulleys 24 are located at both ends of the track frame 21, that is, the first driving mechanism 22 is located on both sides of the two synchronous pulleys 24. Both ends of the magnetic attraction and traction device are respectively lapped and fixed on the two conveyor belts, that is, the two conveyor belts are opposite and arranged at intervals. For the first driving mechanism 22, it is preferably a conventional motor for driving the conveyor belt. As an alternative embodiment, a synchronous pulley 24 can also be provided at each of the inner ends of the two track frames 21, and there is only one conveyor belt.

[0040] It should be noted that the tray rack 13 in the embodiment of the present utility model is a square frame body with openings on both sides of the front surface, and it can be, for example, Figure 5 As shown, a plurality of slots 130 are correspondingly and spaced apart vertically on the two opposite inner side surfaces of the tray rack 13. The two ends of the chassis 131 are respectively slidably inserted into the slots 130 at corresponding heights on the two opposite inner side walls of the tray rack 13, and the tray is placed on the upper surface of the chassis 131. It can also be that a plurality of spaced support plates (not shown) are arranged vertically inside the tray rack 13, and one chassis 131 can be placed on each support plate, and the tray is fixed on the upper surface of the chassis 131.

[0041] It should be understood that the above specific embodiments of the present utility model are only used for exemplary illustration or explanation of the principle of the present utility model, and do not constitute a limitation to the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present utility model shall be included within the protection scope of the present utility model. In addition, the appended claims of the present utility model are intended to cover all variations and modifications that fall within the scope and boundary of the appended claims, or equivalent forms of such scope and boundary.

Claims

1. A quick-insert automatic pallet feeder, characterized in that, Comprising: A pallet box, which includes a main structural frame, a lifting platform vertically liftable within the main structural frame, and a pallet rack supported on the lifting platform. A plurality of drawable chassis for fixedly placing pallets are vertically spaced inside the pallet rack. A handling track, which extends horizontally and has a first end connected to the main structural frame and a second end opposite to and away from the main structural frame. It includes two relatively and parallelly spaced track frames extending horizontally, a conveyor belt disposed between the two track frames and reciprocally drivable horizontally, a first driving mechanism disposed on the track frames to drive the conveyor belt to reciprocally drive, and a magnetic attraction traction device fixed on the conveyor belt and moving synchronously therewith. The magnetic attraction traction device can adsorb the chassis when in the first end position and docking with any one of the chassis, and under the drive of the conveyor belt, take out the chassis from the pallet rack and convey it from the first end to the second end.

2. The automatic pallet feeder according to claim 1, wherein The lifting platform includes a pallet fixing base having at least one horizontal support surface, a lead screw extending vertically, and a second driving mechanism connected to the lead screw to drive the lead screw to rotate around a vertical line. The pallet fixing base is connected to a sliding member slidably disposed on the lead screw to vertically lift along the axis direction of the lead screw when the lead screw is driven to rotate.

3. The automatic pallet feeder according to claim 2, characterized in that, The lifting platform further includes a guiding mechanism for guiding the vertical lifting movement of the pallet fixing base.

4. The automatic pallet feeder according to claim 3, wherein A horizontal fixing plate is provided at the bottom of the main structural frame. The second driving mechanism is fixed on the fixing plate and its driving end faces upward and is connected to the lead screw. Two relatively and parallelly spaced vertical support frames extending vertically are provided on the fixing plate. A horizontal cross support frame is fixed at the bottom ends of the two vertical support frames. The top end of the lead screw is rotatably connected to the cross support frame. The cross support frame, the fixing plate, and the two vertical support frames jointly define an activity space for the lead screw and the sliding member to move. The guiding mechanism includes guide rails extending vertically on the end faces of each vertical support frame facing the pallet fixing base and sliders disposed on the end faces of the pallet fixing base facing the guide rails and slidably mating with the guide rails correspondingly.

5. The automatic pallet feeder according to claim 4, wherein A guide plate extending vertically is provided outside the lead screw and connected to the cross support frame and the fixing plate at its upper and lower ends respectively. The sliding member is slidably mated with the guide plate; and / or A plurality of limit sensors are vertically spaced on the opposite side faces of the two vertical support frames. The limit sensors are electrically connected to the second driving mechanism.

6. The automatic tray feeder according to claim 2, wherein The second driving mechanism is a motor.

7. The automatic pallet feeder according to any one of claims 1-6, characterized in that, At least one magnet adsorption point for attracting the magnetic attraction traction device is provided at the bottom of the chassis; and / or A plurality of the chassis can be stacked to change the feeding height at the second end.

8. The automatic pallet feeder according to claim 7, characterized in that, The magnetic attraction traction device is an electromagnet whose magnetic force can be controlled by energization and de - energization.

9. The automatic pallet feeder according to claim 1, wherein, The first driving mechanism is a motor.

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