Sheet feeding mechanism for blister processing

Abstract

The utility model provides a piece feeding mechanism for blister processing, and belongs to the technical field of blister processing. Comprising a machine frame, a feeding conveying belt, a carrying frame longitudinally connected to the machine frame in a sliding mode and a synchronous driving unit, the synchronous driving unit comprises a feeding roller rotationally connected to the machine frame, a reduction gear connected with the feeding roller through a belt and a rack arranged on the carrying frame, the rack is meshed with the reduction gear, and the feeding roller is driven by a motor. The utility model has the advantages of simple structure and the like.

Description

Technical Field

[0001] This utility model belongs to the field of vacuum forming technology and relates to a sheet loading mechanism for vacuum forming. Background Technology

[0002] Vacuum forming is a process in which rigid plastic is cut into sheets, softened by heat, and then shaped under negative pressure. The sheets are stacked and fed one by one into the vacuum forming machine. Most existing sheet feeding mechanisms use robotic arms to grip the sheets, which is costly and has the risk of machine shutdown due to material slippage from the robotic arm. Utility Model Content

[0003] The purpose of this utility model is to address the aforementioned problems in the existing technology by providing a sheet loading mechanism for thermoforming. The technical problem to be solved by this utility model is how to simplify the structure of the sheet loading mechanism.

[0004] The purpose of this utility model can be achieved through the following technical solution: A feeding mechanism for thermoforming, characterized in that it includes a frame, a feeding conveyor belt, a carrier frame longitudinally slidably connected to the frame, and a synchronous drive unit. The synchronous drive unit includes a feeding roller rotatably connected to the frame, a reduction gear connected to the feeding roller via a belt, and a rack disposed on the carrier frame. The rack meshes with the reduction gear, and the feeding roller is driven by a motor.

[0005] Furthermore, a buffer plate is longitudinally slidably connected to the bottom of the carrier, and several buffer springs are provided between the buffer plate and the carrier.

[0006] The rotating feed roller delivers the top sheet stacked on the buffer plate into the feed conveyor belt. During the rotation of the feed roller, the entire carrier frame moves upward. Through the setting of the reduction gear, the feed roller can rotate at a certain angle so that the top sheet is completely inserted into the feed conveyor belt. The carrier frame can move upward by the thickness of one sheet. In this way, the overall height of the stacked sheets can still be matched with the feed roller. The buffer spring not only makes the feed roller press the top sheet tightly, but also compensates for a certain running error. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the upper plate mechanism.

[0008] Figure 2 This is a schematic diagram of the transmission structure between the feeding roller and the rack.

[0009] In the diagram, 1 is the frame; 2 is the feed conveyor belt; 3 is the carrier; 4 is the feeding roller; 5 is the reduction gear; 6 is the rack; 7 is the buffer plate; and 8 is the buffer spring. Detailed Implementation

[0010] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0011] like Figure 1 and Figure 2 The sheet-feeding mechanism shown includes a frame 1, a feeding conveyor belt 2, a carrier 3 longitudinally slidably connected to the frame 1, and a synchronous drive unit. The synchronous drive unit includes a feeding roller 4 rotatably connected to the frame 1, a reduction gear 5 connected to the feeding roller via a belt, and a rack 6 mounted on the carrier 3. The rack 6 meshes with the reduction gear 5. The feeding roller 4 is driven by a motor. A buffer plate 7 is longitudinally slidably connected to the bottom of the carrier 3, and several buffer springs 8 are arranged between the buffer plate 7 and the carrier 3.

[0012] The feeding roller 4 rotates, feeding the topmost sheet stacked on the buffer plate 7 into the feeding conveyor belt 2. During the rotation of the feeding roller 4, the carrier 3 can be moved upward as a whole. Through the setting of the reduction gear 5, the feeding roller 4 can rotate at a certain angle so that the topmost sheet is completely inserted into the feeding conveyor belt 2. The carrier 3 can be moved upward as a whole by the thickness of one sheet. In this way, the overall height of the stacked sheets can still be matched with the feeding roller 4. The buffer spring 8 can not only make the feeding roller 4 press the top sheet tightly, but also compensate for a certain running error. Of course, considering that there is still a certain friction between the plastic sheets, powder can be sprinkled on the stacking and bonding surfaces of the sheets during the stacking process to further reduce the resistance of mutual friction between the sheets.

[0013] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A sheet loading mechanism for thermoforming, characterized in that, It includes a frame (1), a feeding conveyor belt (2), a carrier frame (3) that is longitudinally slidably connected to the frame (1), and a synchronous drive unit. The synchronous drive unit includes a feeding roller (4) that is rotatably connected to the frame (1), a reduction gear (5) that is connected to the feeding roller by a belt, and a rack (6) that is set on the carrier frame (3). The rack (6) meshes with the reduction gear (5), and the feeding roller (4) is driven by a motor.

2. The sheet loading mechanism for vacuum forming according to claim 1, characterized in that, A buffer plate (7) is longitudinally slidably connected to the bottom of the carrier (3), and several buffer springs (8) are provided between the buffer plate (7) and the carrier (3).

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