Discharging device for packaging machine

Abstract

The utility model provides a blanking device for a packaging machine, which comprises a blanking base connected with the packaging machine, a blanking hopper is arranged on the upper surface of the blanking base, a three-way channel is arranged in the blanking base, the three-way channel comprises a vertical first channel and an inclined second channel, the bottom end of the first channel is communicated with the middle of the second channel, and the bottom end of the first channel is communicated with the middle of the second channel. A first cylinder barrel and a second cylinder barrel are arranged on the portions, on the left side and the right side of the second channel, of the discharging base in the axial direction of the discharging base respectively, the lower side of the first cylinder barrel communicates with a discharging pipe, a sealing assembly is arranged at the end, away from the discharging base, of the first cylinder barrel, and a pushing assembly is arranged in the second cylinder barrel. The device is simple in structural design, convenient to operate, capable of achieving quantitative discharging, capable of being adjusted in real time according to the discharging amount so as to meet the packaging requirement, and high in practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging machines, and particularly relates to a blanking device for packaging machines. Background Art

[0002] There are many types of packaging machines, and they can be categorized in many ways. They can be classified by product state into liquid, powder, and granule packaging machines; by packaging function into inner packaging and outer packaging machines; and by packaging industry into packaging machines for food, pharmaceuticals, daily chemicals, textiles, and other industries. Powder and granule packaging machines are widely used in the pharmaceutical industry. Due to their pharmacological effects, quantitative packaging is usually required during packaging. Their feeding mechanism typically uses a screw feeder. However, when feeding powder and granular drugs through the screw feeder, large gaps often form inside the screw, leaving the drug in a hollow state. This makes it very easy for the packaging quantity to be substandard during bagging, thus affecting product quality.

[0003] In view of this, in order to solve the above problems, the utility model proposes a feeding device that can realize quantitative feeding. The device has a simple structural design and is easy to operate. It can also be adjusted in real time according to the amount of feeding to meet packaging needs, and is highly practical. Summary of the Invention

[0004] The utility model provides a feeding device for a packaging machine, which has a simple structural design, is easy to operate, can realize quantitative feeding, and can also be adjusted in real time according to the size of the feeding amount to meet the packaging needs. It is highly practical. The specific scheme is as follows:

[0005] A feeding device for a packaging machine comprises a feeding base connected to the packaging machine, a feeding hopper being provided on the upper surface of the feeding base, a three-way channel being opened in the feeding base, the three-way channel comprising a vertical first channel and an inclined second channel, and the bottom end of the first channel is connected with the middle part of the second channel, a first cylinder and a second cylinder are respectively provided along the axial direction on the feeding base on the left and right sides of the second channel, a feeding pipe is connected to the lower side of the first cylinder, a sealing assembly is provided at the end of the first cylinder away from the feeding base, and a pushing assembly is provided in the second cylinder.

[0006] Furthermore, the pushing assembly includes a plunger and a first cylinder, the plunger is arranged inside the second cylinder, the first cylinder is connected to the end of the second cylinder away from the unloading base through a flange, the end of the telescopic rod of the first cylinder is connected to the plunger, and the length of the plunger is greater than the length between the first channel and the unloading pipe.

[0007] Furthermore, the sealing assembly includes a second cylinder and a sealing plug. The sealing plug is arranged in the first cylinder. The second cylinder is connected to the end of the first cylinder away from the blanking base through a flange. The end of the telescopic rod of the second cylinder is connected to the sealing plug. The sealing plug is an arc-shaped structure at the end away from the second cylinder, and its radius is the same as that of the first channel.

[0008] Furthermore, a driving motor is provided at the top of the lower hopper, and the driving motor is downwardly connected to a stirring shaft through a coupling. One side of the stirring shaft is fixedly connected to a first stirring rod through a connecting rod, and a feeding pipe is connected to the top of the lower hopper.

[0009] Furthermore, a second stirring rod is fixedly connected to the stirring shaft on the other side of the first stirring rod through a connecting rod. The first stirring rod and the second stirring rod are in an inverted eight-shaped structure. The outer side of the second stirring rod is arc-shaped and close to the inner wall of the lower hopper, and the first stirring rod is long and away from the inner wall of the lower hopper.

[0010] Furthermore, the lower end of the first stirring rod is vertically connected to a material-moving rod downward, and the material-moving rod is located in the neck of the lower end of the lower hopper.

[0011] The beneficial effects of the utility model are:

[0012] 1. The utility model is a feeding device for a packaging machine, which is provided with a feeding base and a three-way channel, a pushing assembly and a sealing assembly provided therein. When the single feeding amount is set to adjust the pushing stroke of the telescopic rod of the first cylinder, when the powder or granular medicine enters the three-way channel from the feeding hopper, the first cylinder is started and the plunger is pulled. When the channel is fully blocked, the single feeding amount can be obtained. Then the first cylinder and the second cylinder are started at the same time, and the telescopic rods thereof push the plunger forward and pull the sealing plug backward. The sealing plug stops when it reaches the side of the feeding pipe away from the feeding base. At this time, the material can be discharged downward from the feeding pipe, and the single feeding is completed, thereby meeting the purpose of ensuring the same feeding amount each time and quantitative feeding.

[0013] 2. The utility model is a feeding device for a packaging machine. By setting a driving motor, a stirring shaft and a first stirring rod, a second stirring rod and a material diverter rod thereon, when the material is transported from the feeding hopper, the driving motor is started, and the first stirring rod and the second stirring rod are driven to rotate, wherein the second stirring rod can make the material adhere to the inner wall of the feeding hopper, and the material diverter rod connected to the first stirring rod is located in the lower neck of the feeding hopper. The material in the neck can be stirred by continuous rotation to create a vacuum state between the materials to ensure their concentration, thereby further ensuring the consistency of material feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front sectional view of the present utility model.

[0015] Figure 2 This is a schematic structural diagram of the utility model.

[0016] Figure 3 This is a front sectional view of the blanking base of the utility model.

[0017] Figure 4 This is a schematic diagram of the internal structure of the lower hopper of the utility model.

[0018] Figure 5 This is a schematic diagram of the push component of the utility model.

[0019] Figure 6 This is a schematic diagram of the sealing component of the present invention.

[0020] Explanation of the accompanying drawings: unloading base 1, unloading hopper 2, first channel 3, second channel 4, first cylinder 5, second cylinder 6, unloading pipe 7, sealing assembly 8, second cylinder 801, sealing plug 802, pushing assembly 9, plunger 901, first cylinder 902, driving motor 10, stirring shaft 11, first stirring rod 12, connecting rod 13, feeding pipe 14, second stirring rod 15, and material diverting rod 16. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] See Figure 1-6 , a packaging machine unloading device, including a unloading base 1 connected to the packaging machine, a unloading hopper 2 is provided on the upper surface of the unloading base 1, a pipe is connected to the lower part of the unloading hopper 2 and is connected to the flange provided on the top of the unloading base 1 through a flange, a three-way channel is opened in the unloading base 1, the three-way channel includes a vertical first channel 3 and an inclined second channel 4, and the bottom end of the first channel 3 is connected to the middle part of the second channel 4, the inner diameters of the first channel 3 and the second channel 4 are consistent, and the inclined second channel 4 is provided to facilitate the material to freely enter the lower end of the second channel 4 when falling from the first channel, wherein the first channel 3 and the second channel 4 are connected. The intersection of the channels 4 and the bottom end of the second channel 4 form a quantitative structure. The first cylinder 5 and the second cylinder 6 are respectively provided along the axial direction on the discharge base 1 on the left and right sides of the second channel 4. The lower side of the first cylinder 5 is connected to a discharge pipe 7. The inner diameter of the discharge pipe 7 is consistent with the inner diameter of the first channel 3. The first cylinder 5 is provided with a sealing assembly 8 at the end away from the discharge base 1. The sealing assembly 8 is used to seal the side of the intersection of the first channel 3 and the second channel 4 and located on the side of the sealing assembly 8. A pushing assembly 9 is provided in the second cylinder 6. The pushing assembly 9 is used to push the quantitative material to the discharge pipe 7 so that it is discharged downward.

[0023] The pushing assembly 9 includes a plunger 901 and a first cylinder 902. The plunger 901 is arranged inside the second cylinder 6, wherein the outer diameter of the plunger 901 is tightly fitted with the inner diameter of the second cylinder 6 to form a sealed state. The first cylinder 902 is connected to the end of the second cylinder 6 away from the unloading base 1 through a flange. The end of the telescopic rod of the first cylinder 902 is connected to the plunger 901. The length of the plunger 901 is greater than the length between the first channel 3 and the unloading pipe 7. Before use, the stroke distance of the telescopic rod of the first cylinder 902 is adjusted according to the amount of material discharged in a single time. When the first cylinder 902 pushes the material, the outer diameter of the plunger 901 is tightly fitted with the inner diameter of the second cylinder 6, which can prevent the material in the unloading hopper 2 from continuing to be discharged downward during the process of the plunger 901 pushing the material.

[0024] The sealing assembly 8 includes a second cylinder 801 and a sealing plug 802. The sealing plug 802 is arranged in the first cylinder 5, wherein the outer diameter of the sealing plug 802 is tightly attached to the inner diameter of the first cylinder 5 to form a sealed state. The second cylinder 801 is connected to the end of the first cylinder 5 away from the unloading base 1 through a flange. The end of the telescopic rod of the second cylinder 801 is connected to the sealing plug 802. The end of the sealing plug 802 away from the second cylinder 801 is an arc-shaped structure, and its radius is the same as that of the first channel 3. In the initial state, the end of the sealing plug 802 facing away from the second cylinder 801 forms an arc surface with the first channel 3 to form a closed state, so that the first channel 3 and the second channel 4 form an L-shaped structure, and finally form a material quantitative channel.

[0025] A driving motor 10 is provided at the top of the lower hopper 2, and the driving motor 10 is connected to a stirring shaft 11 downwardly through a coupling. One side of the stirring shaft 11 is fixedly connected to a first stirring rod 12 through a connecting rod 13. A feeding pipe 14 is connected to the top of the lower hopper 2. The driving motor 10 drives the first stirring rod 12 to rotate to avoid the lower part of the lower hopper 2 being in a vacuum state.

[0026] A second stirring rod 15 is fixedly connected to the stirring shaft 11 on the other side of the first stirring rod 12 through a connecting rod 13. The first stirring rod 12 and the second stirring rod 15 are in an inverted eight-shaped structure. The outer side of the second stirring rod 15 is arc-shaped and close to the inner wall of the lower hopper 2. The first stirring rod 12 is long and away from the inner wall of the lower hopper 2. The rotation of the first stirring rod 12 and the second stirring rod 15 is driven by the driving motor 10, which not only avoids the vacuum state in the lower part of the lower hopper 2, but also avoids the material from adhering to the inner wall of the lower hopper 2.

[0027] The lower end of the first stirring rod 12 is vertically connected to a material tapping rod 16, which is located in the neck of the lower end of the lower hopper 2. The driving motor 10 drives the material tapping rod 16 to rotate continuously in the lower neck of the lower hopper 2, thereby avoiding the occurrence of a vacuum state between the materials and further ensuring that the amount of material discharged each time is the same, thereby achieving the purpose of quantitative discharging.

[0028] The working principle of the blanking device of the present invention is as follows: first, by determining the single blanking amount, the stroke distance of the telescopic rod of the first cylinder 902 is adjusted to determine the single blanking amount. After determination, the material is poured into the blanking hopper 2 through the feed pipe 14, and at the same time, the drive motor 10 is started to drive the first stirring rod 12 and the second stirring rod 15 to stir the material in the feed hopper 2 in real time. When the material fills the L-shaped channel formed by the first channel 3 and the second channel 4, the first cylinder 902 is started, and its telescopic rod pushes the plunger 901 to move toward the blanking pipe 7. At the same time, the telescopic rod of the second cylinder 801 pulls the sealing plug 802 to move toward the blanking pipe 7. When the side surface of the sealing plug 802 and the side surface of the blanking pipe 7 are on the same arc surface, the work is stopped. At this time, the material can be discharged from the blanking pipe 7 by pushing the telescopic rod of the first cylinder 902, thereby completing the single material blanking work. The next step is completed by analogy, so that the amount of material discharged each time is the same, thereby achieving the purpose of quantitative blanking.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description. It is intended that all variations within the meaning and range of equivalents of the claims be embraced herein, and any reference signs in the claims should not be construed as limiting the claims to which they relate.

[0030] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A blanking device for a packaging machine, characterized in that: The invention comprises a feeding base (1) connected to a packaging machine, wherein a feeding hopper (2) is provided on the upper surface of the feeding base (1), a three-way channel is provided in the feeding base (1), the three-way channel comprises a vertical first channel (3) and an inclined second channel (4), and the bottom end of the first channel (3) is connected to the middle part of the second channel (4), a first cylinder (5) and a second cylinder (6) are provided on the feeding base (1) on the left and right sides of the second channel (4) along the axial direction thereof, the lower side of the first cylinder (5) is connected to a feeding pipe (7), a sealing component (8) is provided at one end of the first cylinder (5) away from the feeding base (1), and a pushing component (9) is provided in the second cylinder (6).

2. A blanking device for a packaging machine according to claim 1, characterized in that: The pushing assembly (9) comprises a plunger (901) and a first cylinder (902), wherein the plunger (901) is arranged inside the second cylinder (6), and the first cylinder (902) is connected to the end of the second cylinder (6) away from the discharge base (1) via a flange, and the end of the telescopic rod of the first cylinder (902) is connected to the plunger (901), and the length of the plunger (901) is greater than the length between the first channel (3) and the discharge pipe (7).

3. A blanking device for a packaging machine according to claim 1, characterized in that: The sealing assembly (8) comprises a second cylinder (801) and a sealing plug (802), wherein the sealing plug (802) is arranged in the first cylinder (5), and the second cylinder (801) is connected to the end of the first cylinder (5) away from the blanking base (1) via a flange, and the end of the telescopic rod of the second cylinder (801) is connected to the sealing plug (802), and the end of the sealing plug (802) away from the second cylinder (801) is an arc-shaped structure, and its radius is the same as that of the first channel (3).

4. A blanking device for a packaging machine according to claim 1, characterized in that: A driving motor (10) is provided at the top of the lower hopper (2), and the driving motor (10) is connected downwardly to a stirring shaft (11) through a coupling, and one side of the stirring shaft (11) is fixedly connected to a first stirring rod (12) through a connecting rod (13), and a feeding pipe (14) is connected to the top of the lower hopper (2).

5. A blanking device for a packaging machine according to claim 4, characterized in that: A second stirring rod (15) is fixedly connected to the stirring shaft (11) on the other side of the first stirring rod (12) via a connecting rod (13); the first stirring rod (12) and the second stirring rod (15) are in an inverted figure eight structure; the outer side of the second stirring rod (15) is arc-shaped and closely attached to the inner wall of the lower hopper (2); the first stirring rod (12) is long and away from the inner wall of the lower hopper (2).

6. A blanking device for a packaging machine according to claim 5, characterized in that: The lower end of the first stirring rod (12) is vertically connected to a material-moving rod (16), and the material-moving rod (16) is located in the neck of the lower end of the lower hopper (2).

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