NL2024442A - Feeding Device for Food Packaging - Google Patents

Abstract

The present invention proposes a feeding device for food packaging, which comprises a tank body, a feeding barrel, a telescopic sleeve, an upper regulating plate, a lower regulating plate, floating balls, an air supply system, a vibrator and a weight scale, the lower regulating plate, the 5 upper regulating plate and the feeding barrel are successively arranged from the top of the tank body from bottom to top, the lower regulating plate, the upper regulating plate and the feeding barrel are communicated with the inner cavity of the tank body, the lower regulating plate is fixed to the feeding barrel, the upper regulating plate is fixed to the lower regulating plate; a first floating hole is arranged in the lower regulating plate; an air passage is arranged in the lower regulating 10 plate; the air passage is communicated with the first floating hole, the air supply system is fixed to the lower regulating plate and communicated with the air passage, the floating ball is arranged in the first floating hole, a second floating hole communicated with the first floating hole is arranged in the upper regulating plate; the diameter of the second floating hole is smaller than that of the floating ball. Through the upper regulating plate, the lower regulating plate, the feeding barrel, the 15 telescopic sleeve and the floating ball which work with each other, the feeding barrel is separated from the tank body so that the weighing accuracy is improved. 2024442

Description

Feeding Device for Food Packaging Technical Field The present invention belongs to the technical field of food packaging, in particular to a feeding device for food packaging. Background A feeding device of the existing food packaging machine, for example, a food package conveying device [Application No.: 201520526007.7; Authorized Announcement No.: CN204750673U], a packaging device and a conveving device are disclosed in the China Patent Full-text Database. The packaging device comprises a feed inlet, a stock guide hole and a weighing chamber. The feed inlet is installed at the inlet of the stock guide hole, and the outlet of the stock guide hole is located at the upper surface of the weighing chamber. An inner cavity is arranged inside the weighing chamber, and a blanking hole is arranged in a position at the upper surface of the weighing chamber corresponding to the outlet of the stock guide hole. The packaging device also comprises a vibration device, a pneumatic cutter, a pressure sensor, a pneumatic push plate and a control device, wherein, the vibration device is installed at the outer side surface of the feed inlet, the pneumatic cutter comprises a first cylinder and a cutter, the first cylinder is installed at the bottom end of the outer side wall of the stock guide hole, the cutter is fixedly connected with an output end of the first cylinder and can penetrate into the inside of the stock guide hole through the side wall of the stock guide hole, and the pressure sensor is installed inside the bottom wall of the weighing chamber. The pneumatic push plate comprises a second cylinder and a push plate, the second cylinder 1s fixed to the outer surface of the side wall of the weighing chamber, the push plate is fixedly connected with the output end of the second cylinder and is arranged inside the weighing chamber, and the control device is installed at the outer side wall of the weighing chamber and is fixedly connected with the first cylinder and the second cylinder through a solenoid valve.

The conveving device weighs the food falling into the weighing chamber by setting the pressure sensor so that the weight of food in each packaging bag is stabilized within a range of values. However, there is still a problem in the conveying device: the vibration exerted by the vibration device on the feed inlet will be transferred onto the weighing chamber so that the food will be shaken on the pressure sensor, and the weighing accuracy is affected.

Summary of the Invention The purpose of the present invention is to provide a feeding device for food packaging with high weighing accuracy. To achieve the above purpose, the present invention adopts the following technical solution: A feeding device for food packaging comprises a tank body, a feeding barrel, a telescopic sleeve, an upper regulating plate, a lower regulating plate, floating balls, an air supply system, a vibrator and a weight scale; The lower regulating plate, the upper regulating plate and the feeding barrel are successively arranged from the top of the tank body from bottom to top: the lower regulating plate. the upper regulating plate and the feeding barrel are communicated with the inner cavity of the tank body; The lower regulating plate is fixed to the feeding barrel; the upper regulating plate is fixed to the lower regulating plate; the first floating hole is arranged in the lower regulating plate; the air passage is arranged in the lower regulating plate: the air passage is communicated with the first floating hole; the air supply system is fixed to the lower regulating plate and communicated with the air passage: the floating ball is arranged in the first floating hole; A second floating hole communicated with the first floating hole is arranged in the upper regulating plate; the diameter of the second floating hole is smaller than that of the floating ball; a guiding axle is arranged on the upper regulating plate; the shoulder bushing of the feeding barrel is installed to the guiding axle: The upper end of the telescopic sleeve is bonded to the inner wall of the feeding barrel, and the lower end is bonded to the mner wall of the feeding barrel.

The weight scale is fixed inside the feeding barrel and directly faces a feed inlet of the tank body; the vibrator is fixed to the outer wall of the feeding barrel.

Preferably, the floating ball is an elastomer.

Preferably, the telescopic sleeve comprises a plurality of flexible sleeves: the flexible sleeves are successively connected in the axial direction.

Preferably, the feeding device for food packaging further comprises a pushing mechanism; the pushing mechanism pushes food on the weight scale into a feed outlet of the feeding barrel.

Compared with the prior art, the present invention has the advantages that through the upper regulating plate, the lower regulating plate, the feeding barrel. the telescopic sleeve and the floating ball which work with each other, the feeding barrel is separated from the tank body, thus mitigating the influence of the vibrator on the weight scale and improving the weighing accuracy. Brief Description of the Drawings FIG.1 is a section view of the feeding device for food packaging of an embodiment of the present invention.

I-lower regulating plate, 2-upper regulating plate, 3-feeding barrel, 4-telescopic sleeve, 5-air supply system, 6-floating ball, 7-guiding axle, 8-first floating hole, 9-second floating hole, 10-tank body.

Detailed Description of the Preferred Embodiments The feeding device for food packaging of the present invention will be described in more detail in combination with the schematic diagram where a preferred embodiment of the present invention is indicated. It should be understood that those skilled in the art can modify the present invention described herein while still achieve the advantages of the present invention. Therefore, the following description should be understood as a broad knowledge of those skilled in the art and does not constitute a limitation of the present invention.

As shown in FIG.1, a feeding device for food packaging comprises a tank body 10, a feeding barrel 3, a telescopic sleeve 4, an upper regulating plate 2, a lower regulating plate 1. floating balls 6, an air supply system 5, a vibrator and a weight scale.

The lower regulating plate 1, the upper regulating plate 2 and the feeding barrel 3 are successively arranged from the top of the tank body 10 from bottom to top; the lower regulating plate 1, the upper regulating plate 2 and the feeding barrel 3 are communicated with the inner cavity of the tank body 10.

The lower regulating plate 1 is fixed to the feeding barrel 3: the upper regulating plate 2 is fixed to the lower regulating plate 1; a first floating hole 8 is arranged in the lower regulating plate 1; an air passage is arranged in the lower regulating plate 1: the air passage is communicated with the first floating hole 8: the air supply svstem 5 is fixed to the lower regulating plate 1 and communicated with the air passage; the floating ball 6 is arranged in the first floating hole 8.

A second floating hole 9 communicated with the first floating hole 8 is arranged in the upper regulating plate 2; the diameter of the second floating hole 9 is smaller than that of the floating ball 6; a guiding axle 7 is arranged on the upper regulating plate 2; the shoulder bushing of the feeding barrel 3 is installed to the guiding axle 7.

The upper end of the telescopic sleeve 4 is bonded to the inner wall of the feeding barrel 3, and the lower end is bonded to the inner wall of the feeding barrel 3. The weight scale is fixed inside the feeding barrel 3 and directly faces a feed inlet of the tank body 10; the vibrator is fixed to the outer wall of the feeding barrel 3. In this embodiment, the floating ball 6 is an elastomer. In this embodiment, the telescopic sleeve 4 comprises a plurality of flexible sleeves; the flexible sleeves are successively connected in the axial direction.

In this embodiment, the device further comprises a pushing mechanism; the pushing mechanism pushes food on the weight scale into a feed outlet of the feeding barrel 3. The pushing mechanism comprises a push plate arranged in the tank body 10 and an outer cylinder fixedly arranged at the tank body 10, wherein, a piston rod of the cylinder passes through the tank body 10 and is fixed to the push plate, and the cylinder can drive the push plate to move evenly towards or away from the direction of the feed outlet.

In this embodiment, both the vibrator and the air supply system 5 are connected with a control unit signal.

The working principle of the present invention is that when in use. the food enters from an upper port of the telescopic sleeve 4. and smoothly falls on the weight scale for weighing under the action of the vibrator; meanwhile, the air in the air supply system 5 is injected at high pressure at the first floating hole 8 via the air passage to eject the floating ball 6 from the first floating hole 8 to the second floating hole 9. the floating ball 6 is stuck in the first floating hole 8, the feeding barrel 3 is jacked up, the feeding barrel 3 and the tank body 10 are separated, thus reducing the influence of the vibration of the feeding barrel 3 on the tank body 10; when the weight measured by the weight scale reaches a set value (in the actual product, the set value is a range), the cylinder works to push the push plate to push the product falling on the weight scale out of the tank body 10 through the feed outlet, thus stabilizing the weight of the food in each packaging bag within a range of values.

The description above is the preferred embodiment of the invention only, and has no limit to the invention.

The changes in any form, such as equivalent replacements or modifications, made to the technical solution and contents disclosed in the invention by those skilled in the art without departing from the scope of the technical solution of the invention belong to the contents without departing from the technical solution of the invention, and are still within the scope of protection of the invention.

Claims (4)

Conclusions 1. A food packaging feeding device, characterized in that it comprises a tank body, a feeding drum, a telescopic sleeve, an upper control plate, a lower control plate, floating balls. an air supply system. includes a vibrator and a weight scale; the lower control plate, the upper control plate and the feed drum are sequentially arranged from the bottom to the top from the top of the tank body; the lower control plate, the upper control plate and the feed drum communicate with the inner cavity of the tank body; the lower control plate is fixed to the feed drum; the upper control plate is attached to the lower control plate; the first floating cavity is provided in the lower control plate: the air passage is provided in the lower control plate; the air passage is connected to the first floating cavity: the air supply system is fixed to the lower control plate and in communication with the air passage; the floating ball is arranged in the first floating cavity; a second buoyant cavity communicating with the first buoyant cavity is provided in the upper control plate: the diameter of the second buoyant cavity is smaller than that of the buoyant ball; a guide shaft is provided on the upper control plate; the shoulder bush of the feed drum is installed on the guide shaft; the upper end of the telescopic sleeve is bonded to the inner wall of the feed drum, and the lower end is bonded to the inner wall of the feed drum: the weight scale is fixed in the feed drum and is directed directly to a feed inlet of the tank body: the vibrator is attached to the outer wall of the feed drum. The food package feeder according to claim 1, characterized in that the floating ball is an elastomer. The food package feeder according to claim 1, characterized in that the telescopic sleeve comprises a plurality of flexible sleeves; the flexible sleeves are connected sequentially in the axial direction. The food package feeding device according to claim 1, characterized in that the food package feeding device further comprises a pushing mechanism; the push mechanism pushes food on the weight scale into a feed outlet of the feed drum.