A floating extrusion feeder

Abstract

A floating extrusion and feeding device includes a feeding box and a pusher assembly that moves back and forth within the feeding box via a pushing mechanism. The discharge port of the feeding box is located at the bottom of the end away from the pusher assembly, and the inlet of the feeding box is located at the top center. The pusher assembly includes a vertically arranged pusher block and side floating blocks elastically arranged on the left and right sides of the pusher block. A lower floating block is elastically arranged at the bottom of the pusher block, so that the side floating blocks and the lower floating block are tightly attached to the side wall of the feeding box through an elastic structure. The four sides of the pusher assembly of this utility model are tightly attached to the cover plate, bottom plate, and side plates. During the extrusion process, small packaging bags will never be squeezed into the peripheral gaps of the pusher assembly, effectively preventing small packaging bags from getting stuck due to gaps along the edges of the pusher blocks, and realizing convenient and rapid packaging and feeding of small packaging bags.

Description

Technical Field

[0001] This utility model relates to the field of food packaging technology, specifically a floating extrusion and tamping feeder. Background Technology

[0002] In the food packaging industry, for aesthetic purposes, customers often request packaging bags to hold more items, such as small packages of desiccants and oxygen absorbers. These smaller packages are often packed into a single large bag, resulting in loose material and numerous smaller bags. The most basic method is manual packaging, where workers fill the bags with pre-sorted materials and then squeeze them by hand to maximize material density. To reduce labor intensity, pneumatic cylinders are now used for compression, but this requires two or three compressions before sealing, slowing down the packaging process. Therefore, a convenient and rapid small-bag feeding device is urgently needed to reduce labor intensity and improve production efficiency. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this invention is to provide a floating extrusion and compaction feeder.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: a floating extrusion tamping feeder, comprising a feeding box and a push block assembly that moves back and forth within the feeding box via a pushing mechanism, wherein the discharge port of the feeding box is located at the bottom of the end away from the push block assembly, and the inlet of the feeding box is located at the top center. The push block assembly includes a vertically arranged push block and side floating blocks elastically arranged on the left and right sides of the push block. A lower floating block is elastically arranged at the bottom of the push block, so that the side floating blocks and the lower floating blocks are in close contact with the side wall of the feeding box through the elastic structure.

[0005] Furthermore, vertical semi-circular grooves are provided on both sides of the push block, and vertical semi-cylindrical protrusions are provided on the side of the side floating block that contacts the push block. The semi-cylindrical protrusions of the side floating blocks on each side are located in the grooves, and the side floating blocks on both sides are elastically connected by multiple hanging springs and spring pins that pass through the push block.

[0006] Furthermore, the bottom of the push block is provided with multiple vertical guide pins, the lower floating block is slidably mounted on the guide pins, and the guide pin between the upper surface of the lower floating block and the lower surface of the push block is fitted with a compression spring.

[0007] Furthermore, the feeding box is assembled and fixed by front and rear side plates, bottom plate, left rear blocking plate, right blocking plate and top cover plate. The telescopic structure of the pushing mechanism passes through the rear blocking plate, and the blocking plate is set at the discharge port.

[0008] Furthermore, the feeding box directly above the discharge port has an upper opening, and the discharge port and the upper opening are both elliptical.

[0009] Furthermore, the side of the pusher that contacts the product has an inwardly concave arc surface structure, and the feed inlet is connected to and fixed with a feed pipe.

[0010] Furthermore, the pushing mechanism is a hydraulic cylinder or a pneumatic cylinder, and the main body of the pushing mechanism is fixed on a cylinder support plate on one side of the feeding box.

[0011] Furthermore, the side of the blocking plate near the discharge port is an inwardly concave arc surface, and one edge of the discharge port matches the bottom of the arc surface.

[0012] This utility model's push block assembly reciprocates under the action of a cylinder. The side floating block is tightly pressed against the side plate under the action of a hanging spring, allowing the lower floating block to move back and forth along the guide pin. Since the width of the long slot on the cover plate is 3mm smaller than the width of the push block assembly, the free height of the push block assembly is 2-3mm higher than the side plate. Thus, when the cover plate is installed, the upper part of the push block assembly is tightly pressed against the cover plate, and the lower floating block of the push block assembly is tightly pressed against the bottom plate under the action of the spring. When the push block assembly reciprocates under the action of the cylinder, the four sides of the push block assembly are tightly pressed against the cover plate, the bottom plate, and the two side plates. During the squeezing process, the small packaging bag will never be squeezed into the peripheral gaps of the push block assembly. Moreover, the wear of the push block assembly during operation will be compensated by the action of the spring, which can ensure the smooth pushing of materials and effectively prevent the small packaging bag from getting stuck due to the gaps along the edge of the push block.

[0013] During operation, when material falls through the large round hole on the cover plate, the host computer sends a signal to push the cylinder to push the push block assembly, squeezing the material and pushing it to the lower end of the elliptical hole on the right side of the cover plate. At the same time, the magnetic switch on the right end of the cylinder is triggered, and the tamping cylinder tamps the material downward. Below the elliptical hole on the bottom plate is a pre-opened packaging bag. In this way, the squeezed material will be tamped into the packaging bag through the elliptical hole on the bottom plate by the tamping cylinder. The magnetic switch at the lower end of the tamping cylinder is triggered, pushing the cylinder to retract. After the cylinder retracts, the magnetic switch at the left end of the cylinder is triggered, and the tamping cylinder retracts. After the tamping cylinder retracts, the magnetic switch at the upper end of the tamping cylinder is triggered, preparing for the next signal from the host computer, realizing convenient and rapid packaging and feeding of small packaging bags. Attached Figure Description

[0014] The present invention will now be further described with reference to the accompanying drawings.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 This is a schematic diagram of the exploded structure of this utility model; Figure 4 This is an exploded structural diagram of the pusher block assembly of this utility model. Detailed Implementation

[0016] like Figure 1-4 As shown, a floating extrusion feeder includes a feeding box and a push block assembly 5 that moves back and forth within the feeding box via a pushing mechanism. The discharge port 9 of the feeding box is located at the bottom of the end away from the push block assembly 5, and the inlet 8 of the feeding box is located at the top center. The push block assembly 5 includes a vertically arranged push block 507 and side floating blocks 501 elastically arranged on the left and right sides of the push block 507. A lower floating block 502 is elastically arranged at the bottom of the push block 507, so that the side floating blocks 501 and the lower floating blocks 502 are in close contact with the side wall of the feeding box through the elastic structure. Vertical semi-circular grooves 508 are respectively provided on both sides of the push block 507, and vertical semi-cylindrical protrusions 509 are provided on the side of the side floating block 501 that contacts the push block 507. Furthermore, the semi-cylindrical protrusions 509 of the side floating blocks 501 on each side are located in the grooves 508, and the side floating blocks 501 on both sides are elastically connected by multiple hanging springs 506 and spring hanging pins 505 that pass through the push block 507. Multiple vertical guide pins 504 are respectively provided at the bottom of the push block 507. The lower floating block 502 is slidably disposed on the guide pins 504, and a compression spring 503 is sleeved on the guide pins 504 between the upper surface of the lower floating block 502 and the lower surface of the push block 507. The push block assembly 5 reciprocates under the action of the cylinder, and the side floating block 501 will reciprocate tightly against the side plate. Therefore, the small packaging bag will not be squeezed at the contact point between the side floating block and the side plate during the squeezing process. The side floating block wears during the reciprocating motion, but under the action of the hanging spring, the side floating block is still tightly against the side plate, which is equivalent to a seamless bottom of the side. During the squeezing process, the small packaging bag will never be squeezed at the contact point between the side floating block and the side plate.

[0017] The feeding box is assembled and fixed by front and rear side plates 1, bottom plate 2, left rear blocking plate 6, right blocking plate 3, and top cover plate 4. The cover plate 4 is made by laying out sheet metal with a circular upper part and a long slot at the lower part and welding it to a flat plate. The width of the long slot is 1.5mm smaller on each side than the width of the push block assembly. The telescopic structure of the pushing mechanism passes through the rear blocking plate 6. The blocking plate 3 is set at the discharge port 9. The feeding box above the discharge port 9 has an upper opening, which can be equipped with a tamping cylinder for tamping. The discharge port 9 and the upper opening are elliptical. The side of the push block 507 that contacts the product is an inwardly concave arc surface. The feed inlet 8 is connected and fixed with a feed pipe. The pushing mechanism is a hydraulic cylinder or a pneumatic cylinder, and the main body of the pushing mechanism is fixed on the cylinder support plate 7 on one side of the feeding box. The side of the blocking plate 3 near the discharge port 9 is an inwardly concave arc surface, and one edge of the discharge port 9 matches the bottom of the arc surface.

[0018] The working principle of this utility model is as follows: the push block assembly 5 reciprocates under the action of the cylinder, the side floating block 501 is tightly attached to the side plate under the action of the hanging spring, and the lower floating block 502 is installed on the guide pin. A compression spring is installed between them, so that the lower floating block can move back and forth along the guide pin. Since the width of the long slot on the cover plate is 3mm smaller than the width of the push block assembly, the free height of the push block assembly is 2-3mm higher than the side plate. In this way, when the cover plate is installed, the upper part of the push block assembly is tightly attached to the cover plate, and the lower floating block of the push block assembly is tightly attached to the bottom plate 2 under the action of the spring. When the push block assembly reciprocates under the action of the cylinder, the four sides of the push block assembly are tightly attached to the cover plate, the bottom plate, and the two side plates. During the squeezing process, the small packaging bag will never be squeezed into the peripheral gap of the push block assembly. Moreover, the wear of the push block assembly during the working process will be compensated by the action of the spring.

[0019] During operation, when material falls through the large round hole on the cover plate, the host computer sends a signal to push the cylinder to push the push block assembly, squeezing the material and pushing it to the lower end of the elliptical hole on the right side of the cover plate. At the same time, the magnetic switch on the right end of the cylinder is triggered, and the tamping cylinder tamps the material downward. Below the elliptical hole on the bottom plate is a pre-opened packaging bag. In this way, the squeezed material will be tamped into the packaging bag through the elliptical hole on the bottom plate by the tamping cylinder. The magnetic switch at the lower end of the tamping cylinder is triggered, pushing the cylinder to retract. After the cylinder retracts, the magnetic switch at the left end of the cylinder is triggered, and the tamping cylinder retracts. After the tamping cylinder retracts, the magnetic switch at the upper end of the tamping cylinder is triggered, preparing for the next signal from the host computer.

[0020] The above description is merely an illustrative embodiment of this utility model and is not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model.

Claims

1. A floating extrusion ram feeder comprising a feeder box and a push block assembly (5) driven back and forth in the feeder box by a push mechanism, characterized in that: The discharge port (9) of the feeding box is located at the bottom of the end away from the push block assembly (5), and the inlet port (8) of the feeding box is located at the top center; The push block assembly (5) includes a vertically arranged push block (507) and side floating blocks (501) elastically arranged on the left and right sides of the push block (507). A bottom floating block (502) is elastically arranged at the bottom of the push block (507), so that the side floating blocks (501) and the bottom floating blocks (502) are tightly attached to the side wall of the feeding box through the elastic structure.

2. The floating extrusion and compaction feeder as described in claim 1, characterized in that: The push block (507) has vertical semi-circular grooves (508) on both sides. The side floating block (501) has a vertical semi-cylindrical protrusion (509) on the side that contacts the push block (507). The semi-cylindrical protrusions (509) of the side floating blocks (501) on each side are located in the grooves (508). The side floating blocks (501) on both sides are elastically connected by multiple hanging springs (506) and spring hanging pins (505) that pass through the push block (507).

3. The floating extrusion compactor feeder as described in claim 1, characterized in that: The bottom of the push block (507) is provided with multiple vertical guide pins (504), the lower floating block (502) is slidably disposed on the guide pins (504), and the guide pins (504) between the upper surface of the lower floating block (502) and the lower surface of the push block (507) are fitted with compression springs (503).

4. The floating extrusion and compaction feeder as described in claim 1, characterized in that: The feeding box is assembled and fixed by front and rear side plates (1), bottom plate (2), left rear blocking plate (6), right blocking plate (3) and top cover plate (4). The telescopic structure of the pushing mechanism passes through the rear blocking plate (6), and the blocking plate (3) is set at the discharge port (9).

5. The floating extrusion compactor feeder as described in claim 1, characterized in that: The feeding box directly above the discharge port (9) has an upper opening, and the discharge port (9) and the upper opening are elliptical. A tamping cylinder is installed above the upper opening.

6. The floating extrusion and compaction feeder as described in claim 1, characterized in that: The side of the pusher (507) that contacts the product is an inwardly concave arc structure, and the feed inlet (8) is connected to and fixed with a feed pipe.

7. A floating extrusion compactor feeder as described in claim 1, characterized in that: The pushing mechanism is a hydraulic cylinder or a pneumatic cylinder, and the main body of the pushing mechanism is fixed on the cylinder support plate (7) on one side of the feeding box.

8. A floating extrusion and compaction feeder as described in claim 4, characterized in that: The side of the blocking plate (3) near the discharge port (9) is an inwardly concave arc surface, and one side edge of the discharge port (9) matches the bottom of the arc surface.

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