Feeding device for thermoforming material sheets

Abstract

A feeding device for thermal forming material sheets comprises a rack, rollers, a baffle, a top plate, a lifting table and a moving finger, the rollers are arranged on the rack at intervals, a gap part is formed between every two adjacent rollers, the baffle is arranged at one end of the rack and is parallel to the rollers, the lifting table is arranged below the rollers, and the lifting table is driven by a lifting mechanism to ascend and descend in the vertical direction. The plurality of top plates are arranged on the lifting table at intervals, the lifting table drives the top plates to ascend and descend in the gap parts so as to jack up the material sheets from the rollers, the plurality of moving fingers are arranged at intervals and correspond to the gap parts, and the moving fingers are driven by the driving mechanism to move in the transverse direction so as to limit the material sheets. According to the utility model, the material sheet can be accurately moved to a proper position, and the problem of material blocking is avoided. And the moving fingers can smoothly push the material sheets to a set position, so that a manipulator can conveniently clamp the material sheets.

Description

TECHNICAL FIELD

[0001] The utility model relates to thermoforming sheet processing equipment technical field especially relates to a kind of thermoforming sheet's feeding device. BACKGROUND

[0002] The existing thermoforming heated sheet lifting device is supported by ejector pin to lift sheet, positioned by positioning mechanism at specified position, and the whole is lifted to clamping position by ejector pin, so that mechanical hand clamps.But, in the use process, since sheet is heated to about 950 DEG C in heating furnace, under thermal stress and other factors, sheet will exist deformation after heating, and wear and deformation will be caused after long time use of ejector pin, which is specifically manifested as ejector pin top produces flanging, needle tip bending etc..Therefore, the deformed sheet will be stuck on needle bed after being lifted by ejector pin group, positioning mechanism cannot move sheet to specified position, so that sheet cannot be clamped by clamping device, leading to unable normal production. SUMMARY

[0003] The utility model provides a kind of feeding device of thermoforming sheet, which can lift sheet by line contact mode, and accurately control the position of sheet using moving finger.

[0004] The specific technical scheme is as follows: a kind of feeding device of thermoforming sheet, including rack, roller, baffle, top plate, lifting platform and moving finger, a plurality of rollers are arranged at intervals on the rack, there is gap between adjacent rollers, the baffle is arranged at one end of the rack and is arranged in parallel with the roller, the lifting platform is arranged below the roller, the lifting platform is driven by lifting mechanism to lift along vertical direction, a plurality of top plates are arranged at intervals on the lifting platform, the top plate is lifted in the gap by lifting platform, the sheet is lifted from the roller, a plurality of moving fingers are arranged at intervals and correspond to the gap, and the moving finger is driven by driving mechanism to move along the transverse direction to limit the sheet.

[0005] In the embodiment, the top plate includes a horizontal rod and a vertical rod, the top of a plurality of vertical rods is connected with the horizontal rod, the bottom of the vertical rod is connected with the lifting platform, and the horizontal rod is arranged in parallel with the roller.

[0006] In the embodiment, the lifting mechanism is a worm and worm gear lifter.

[0007] In the embodiment, the driving mechanism includes a lead screw, a plurality of lead screws are arranged in parallel, the bottom of the moving finger has a threaded hole, and the threaded hole is threadedly connected with the lead screw.

[0008] In the embodiment, the lifting platform is provided with an opening portion, the lead screw is arranged in the opening portion, and the moving finger passes through the opening portion.

[0009] In the embodiment, one moving finger is arranged in each gap.

[0010] In the embodiment, the baffle is connected with the adjusting assembly, and the adjusting assembly drives the baffle to move along the feeding direction.

[0011] In the embodiment, the adjusting assembly comprises a fixing plate and an adjusting rod, the fixing plate is connected with the rack, the adjusting rod is connected with an adjusting hole on the fixing plate, one end of the adjusting rod is connected with the baffle, and the other end of the adjusting rod is a free end.

[0012] The technical effect of the present application is that the material sheet can be accurately moved to the appropriate position without the problem of material jamming. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a perspective view of a hot forming material sheet feeding device according to an embodiment of the present application.

[0014] Figure 2 is a schematic view of a hot forming material sheet feeding device according to an embodiment of the present application.

[0015] Figure 3 is a schematic view of part A of the present application. Figure 1

[0016] Figure 4 is a schematic view of a rack according to an embodiment of the present application. DETAILED DESCRIPTION

[0017] The essential features and advantages of the present application will be further described with reference to the examples below, but the present application is not limited to the listed examples.

[0018] For example, Figures 1 to 4 ​The feeding device of the hot forming sheet of the embodiment comprises a rack 1, rollers 2, a baffle 3, a top plate 4, a lifting platform 5 and moving fingers 6. The rollers 2 are arranged on the rack 1 at intervals, and gaps 21 are arranged between adjacent rollers 2. The baffle 3 is arranged at one end of the rack 1 and parallel to the rollers 2. The lifting platform 5 is arranged below the rollers 2 and is driven by a lifting mechanism 7 to move vertically. The top plates 4 are arranged on the lifting platform 5 at intervals and are driven by the lifting platform 5 to move in the gaps 21, so as to lift the sheet 10 from the rollers 2. The moving fingers 6 are arranged at intervals and correspond to the gaps 21, and are driven by a driving mechanism to move horizontally, so as to limit the sheet 10. In the above technical solution, when the sheet 10 is moved to the plurality of rollers 2 under the rotation of the rollers 2, until the baffle 3 stops; the lifting platform 5 is lifted under the driving of the lifting mechanism 7, and the top plates 4 fixed on the lifting platform 5 lift the sheet 10, so that the sheet 10 is separated from the rollers 2; the moving fingers 6 at both ends move, so that the sheet 10 moves to the preset position on the plurality of top plates 4; and then the robot clamps the sheet 10 into the mold for processing. Through the above technical solution, the top plate is adopted to realize linear support, no matter how large the deformation of the sheet is, the movement of the sheet on the top plate will not be affected, and the moving fingers can smoothly push the heated sheet to the feeding position, which is convenient for the mechanical hand to clamp.

[0019] In the embodiment, the top plate 4 comprises a horizontal rod 41 and vertical rods 42, the top of the vertical rods 42 is connected with the horizontal rod 41, the bottom of the vertical rods 42 is connected with the lifting platform 5, and the horizontal rod 41 is arranged parallel to the rollers 2. The vertical rods 42 support the horizontal rod 41, and can reduce the weight of the top plate. The horizontal rod 41 contacts the upper sheet 10, so as to realize linear support of the sheet. In the embodiment, the lifting mechanism 7 is a worm and gear lifter, and other lifting mechanisms in the prior art, such as a pneumatic cylinder, can also be adopted, so as to realize the lifting of the lifting platform 5.

[0020] In the embodiment, the driving mechanism comprises lead screws 8, the lead screws 8 are arranged in parallel, the bottom of the moving fingers 6 is provided with a threaded hole 61, the threaded hole 61 is threadedly connected with the lead screw 8, the lead screw 8 is rotated to drive the moving fingers 6 to move to the sheet 10, so as to position the sheet 10 from the side, and the lead screw 8 can be driven by a manual or existing electric driving mechanism. The lifting platform 5 is provided with an opening 51, the lead screw 8 is arranged in the opening 51, and the moving fingers 6 pass through the opening 51, so that the moving fingers 6 do not affect the lifting of the lifting platform 5. One moving finger 6 is arranged in each gap 21, and the moving fingers 6 can be positioned on the left and right sides of the sheet 10 respectively.

[0021] In the embodiment, the baffle 3 is connected with the adjusting assembly 9, the adjusting assembly 9 drives the baffle to move along the feeding direction X, so that the position of the baffle 3 can be adjusted to be suitable for the material sheet 10 of different sizes. The adjusting assembly 9 comprises a fixed plate 91 and an adjusting rod 92, the fixed plate 91 is connected with the rack 1, the adjusting rod 92 is connected with the adjusting hole 911 on the fixed plate 91, one end of the adjusting rod 92 is connected with the baffle 3, and the other end is a free end. The fixed plate 91 can be driven to move through the movement of the adjusting rod 92, and the adjusting can be realized through the threaded connection of the adjusting rod 92 and the adjusting hole 911.

[0022] The feeding device for hot forming material sheet in the embodiment can accurately move the material sheet to a suitable position, and the problem of material sheet jamming does not occur; the support is changed from multi-point support to multi-line support, the material sheet does not exist in the case of material sheet jamming, and the adjusting finger can smoothly push the material sheet to the set position.

[0023] It should be noted that the above preferred embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A feeding device for thermoforming sheets, characterized in that: It includes a stand, rollers, baffles, top plates, a lifting platform and moving fingers. Several rollers are arranged on the stand at intervals, and there is a gap between adjacent rollers. The baffle is arranged at one end of the stand and is arranged parallel to the rollers. The lifting platform is arranged below the rollers, and the lifting platform is driven to rise and fall in the vertical direction by the lifting mechanism. Several top plates are arranged on the lifting platform at intervals, and the top plates are driven by the lifting platform to rise and fall in the gap to lift the sheet from the rollers. Several moving fingers are arranged at intervals and correspond to the gaps. The moving fingers are driven by the driving mechanism to move laterally to limit the sheet.

2. The feeding device for thermoforming sheets according to claim 1, characterized in that: The top plate comprises a cross bar and a longitudinal bar, the tops of the longitudinal bars are connected to the cross bar, the bottoms of the longitudinal bars are connected to the lifting platform, and the cross bar is arranged parallel to the roller.

3. The feeding device for thermoforming sheets according to claim 1, characterized in that: The lifting mechanism is a worm gear lifter.

4. The feeding device for thermoforming sheets according to claim 1, characterized in that: The driving mechanism includes a screw rod, and a plurality of screw rods are arranged in parallel. The bottom of the movable finger is provided with a threaded hole, and the threaded hole is threadedly connected to the screw rod.

5. The feeding device for thermoforming sheets according to claim 4, characterized in that: The lifting platform is provided with an opening portion, the screw rod is arranged in the opening portion, and the moving finger passes through the opening portion.

6. The feeding device for thermoforming sheets according to claim 5, characterized in that: A moving finger is provided in each gap portion.

7. The feeding device for thermoforming sheets according to claim 1, characterized in that: The baffle is connected to the adjustment component, and the adjustment component drives the baffle to move along the feeding direction.

8. The feeding device for thermoforming sheets according to claim 7, characterized in that: The adjustment assembly includes a fixed plate and an adjustment rod, the fixed plate is connected to the stand, the adjustment rod is connected to the adjustment hole on the fixed plate, one end of the adjustment rod is connected to the baffle, and the other end is a free end.

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