Screw packaging device

Abstract

The utility model relates to a screw packaging device and provides a screw packaging device which is characterized in that after a packaging film on a film material feeding mechanism penetrates through a gap between a bagging mechanism and a limiting ring, the left end and the right end of the packaging film are folded towards the middle to be attached to each other, and the packaging film wraps the surface of the bagging mechanism; the packaging film in the upper end area of the bagging mechanism can be limited and fixed through a limiting ring, the packaging film in the feeding hopper area can be prevented from being separated from the outer surface of a feeding hopper, then gas in an adsorption structure can be pumped out through a negative pressure generation mechanism, adsorption force is generated on the surface of the lower end of the bagging mechanism, and the packaging film is prevented from being separated from the outer surface of the feeding hopper. The packaging film can be attached to the surface of the lower end of the bagging mechanism, the situation that the packaging film is separated from the lower end of the bagging mechanism when the packaging film is pulled downwards by the film pulling mechanism subsequently can be avoided, and the bagging effect of the packaging film is improved.

Description

Technical Field

[0001] This utility model relates to the field of screw packaging technology, and in particular to a screw packaging device. Background Technology

[0002] A screw packaging device is a device used to bag and pack screws. It typically includes: a film feeding mechanism, a bagging mechanism, a film pulling mechanism, an edge sealing mechanism, and a sealing mechanism. The packaging film on the film feeding mechanism wraps around the outer surface of the bagging mechanism, with the left and right ends of the packaging film in contact with each other. At this point, the edge sealing mechanism can heat seal the left and right sides of the packaging film. Then, the film pulling mechanism pulls down the packaging film to the sealing mechanism for heat sealing the lower end of the packaging film, forming a packaging bag with an opening at the top. Then, the screws are fed into the bagging machine and fall into the packaging bag. The film pulling mechanism continues to pull down the packaging film until the opening of the packaging film is aligned with the sealing mechanism, and then the opening of the packaging bag is heat sealed. This cycle can be repeated to package screws in batches.

[0003] In particular, the lack of a limiting mechanism in the bagging mechanism causes the packaging film to bend, misalign, or separate from the surface of the bagging mechanism when the film pulling mechanism pulls down the packaging film, which seriously affects the bagging effect of the packaging film. Summary of the Invention

[0004] Therefore, it is necessary to provide a screw packaging device to solve the technical problems existing in the background art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A screw packaging device includes a frame, on which a film feeding mechanism and a screw feeding mechanism are mounted. Below the film feeding mechanism, a bagging mechanism and a sealing mechanism are sequentially arranged. On the inner side of the bagging mechanism, from top to bottom, a sealing mechanism and a film pulling mechanism are sequentially arranged. The inlet of the bagging mechanism corresponds to the outlet of the screw feeding mechanism. A limiting ring is arranged around the upper outer side of the bagging mechanism, with a gap between the limiting ring and the outer surface of the bagging mechanism. An adsorption structure is longitudinally arranged on the surface of the bagging mechanism near the sealing mechanism. The frame also includes... A negative pressure generating mechanism is connected to the adsorption structure; a packaging film is placed in the film feeding mechanism, the movable end of the packaging film passes through the interval and extends downward. Under the action of the limiting ring and the adsorption structure, the packaging film surrounds and covers the outer surface of the bagging mechanism, and the left and right ends of the packaging film merge and enter the sealing mechanism and the film pulling mechanism in sequence. The sealing mechanism is used to seal the left and right ends of the packaging film to form a packaging bag, the film pulling mechanism is used to pull the packaging film downward, and the sealing mechanism is used to seal the upper and lower ends of the packaging bag.

[0007] In one embodiment, the bagging mechanism includes a feeding funnel and a bagging tube, the feeding funnel being located above the bagging tube, the inlet of the feeding funnel being configured to correspond to the outlet of the screw feeding mechanism; and the limiting ring being arranged around the outer side of the feeding funnel.

[0008] In one embodiment, the adsorption structure includes an adsorption cavity formed on the surface of the feed funnel, the adsorption cavity extending from top to bottom and inward into the bagging tube, and the outer surface of the bagging tube having a plurality of adsorption holes communicating with the adsorption cavity.

[0009] In one embodiment, the screw packaging device further includes two mounting members and two fixing members. The two mounting members are disposed on both sides of the bagging mechanism. The mounting members are provided with a plurality of fixing holes from left to right. Both ends of the limiting ring are provided with through holes. The fixing member passes through the through holes and one of the fixing holes on the corresponding side mounting member to fix the limiting ring to the mounting member.

[0010] In one embodiment, the negative pressure generating mechanism of the adsorption structure includes a vacuum pump and a suction pipe, one end of the suction pipe being connected to the vacuum pump and the other end of the suction pipe being connected to the adsorption structure.

[0011] In one embodiment, the upper end of the limiting ring has a curved transition portion.

[0012] In one embodiment, the sealing mechanism includes two electric push rods and two heat sealing blocks. The two electric push rods are spaced apart in the left-right direction. Each electric push rod is driven to connect with one of the heat sealing blocks. The two electric push rods drive the two heat sealing blocks to move closer to each other to complete the sealing of the left and right ends of the packaging film.

[0013] In one embodiment, the film-pulling mechanism includes two drivers and two clamping discs. The two drivers are spaced apart from left to right. Each driver is driven to connect with one of the clamping discs. The two clamping discs are used to clamp the left and right ends of the packaging film. The two drivers are used to drive the two clamping discs to rotate so as to move the packaging film downward.

[0014] In one embodiment, the sealing mechanism includes: a driving member, and a dynamic heat-sealing clamp block and a fixed heat-sealing clamp block disposed opposite to each other. The driving member is driven to the dynamic heat-sealing clamp block, and the driving member is used to drive the dynamic heat-sealing clamp block to approach the fixed heat-sealing clamp block to seal the upper and lower ends of the packaging film.

[0015] In one embodiment, the bagging mechanism has an outlet channel that extends from top to bottom and passes through the feed funnel and the bagging tube.

[0016] The beneficial effects of this utility model are as follows: By providing a screw packaging device, after the packaging film on the film feeding mechanism passes through the gap between the bagging mechanism and the limiting ring, the left and right ends of the packaging film are gathered towards the middle until they adhere to each other, and the packaging film covers the surface of the bagging mechanism. The limiting ring can limit and fix the packaging film in the upper area of ​​the bagging mechanism, which can prevent the packaging film in the feeding funnel area from separating from the outer surface of the feeding funnel. Then, the negative pressure generating mechanism can extract the gas in the adsorption structure, so that the lower surface of the bagging mechanism generates an adsorption force, and the packaging film can adhere to the lower surface of the bagging mechanism. This can prevent the packaging film from separating from the lower end of the bagging mechanism when the subsequent film pulling mechanism pulls the packaging film downward, thereby improving the bagging effect of the packaging film. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a screw packaging device according to one embodiment;

[0019] Figure 2 This is a front view structural schematic diagram of a screw packaging device according to one embodiment;

[0020] Figure 3 This is a right-side structural schematic diagram of a screw packaging device according to one embodiment;

[0021] Figure 4 This is a schematic view of the limiting ring, mounting component, and fixing component of a screw packaging device according to one embodiment;

[0022] Figure 5 This is a perspective structural diagram of the adsorption mechanism and bagging mechanism of one embodiment.

[0023] In the attached diagram, 10 is the film material feeding mechanism; 20 is the adsorption mechanism; 21 is the vacuum pump; 22 is the extraction pipe; 30 is the bagging mechanism; 31 is the feeding funnel; 310 is the adsorption structure; 311 is the adsorption chamber; 312 is the discharge channel; 32 is the bagging tube; 321 is the adsorption hole; 40 is the limiting ring; 401 is the through hole; 402 is the transition part; 41 is the mounting part; 411 is the fixing hole; 43 is the fixing part; 50 is the film pulling mechanism; 51 is the driver; 52 is the clamping plate; 60 is the edge sealing mechanism; 61 is the electric push rod; 62 is the heat sealing block; 70 is the sealing mechanism; 71 is the linear module; 72 is the heat sealing clamping block; 73 is the limiting clamping block; and 80 is the screw feeding mechanism. Detailed Implementation

[0024] like Figures 2-4 As shown, a screw packaging device includes a frame on which a film feeding mechanism 10 and a screw feeding mechanism 80 are mounted. Below the film feeding mechanism 10, a bagging mechanism 30 and a sealing mechanism 70 are sequentially arranged. On the inner side of the bagging mechanism 30, from top to bottom, a sealing edge mechanism 60 and a film pulling mechanism 50 are sequentially arranged. The inlet of the bagging mechanism 30 corresponds to the outlet of the screw feeding mechanism 80. A limiting ring 40 is arranged around the upper outer side of the bagging mechanism 30, with a gap between the limiting ring 40 and the outer surface of the bagging mechanism 30. An adsorption structure 310 is longitudinally arranged on the surface of the bagging mechanism 30 near the sealing edge mechanism 60. The frame is also equipped with a negative pressure generating mechanism 20 that communicates with the adsorption structure 310; a packaging film is placed in the film feeding mechanism 10, the movable end of the packaging film passes through the interval and extends downward. Under the action of the limiting ring 40 and the adsorption structure 310, the packaging film surrounds and covers the outer surface of the bagging mechanism 30, and the left and right ends of the packaging film merge and enter the sealing mechanism 60 and the film pulling mechanism 50 in sequence. The sealing mechanism 60 is used to seal the left and right ends of the packaging film to form a packaging bag, the film pulling mechanism 50 is used to pull the packaging film downward, and the sealing mechanism 70 is used to seal the upper and lower ends of the packaging bag.

[0025] Specifically, in use, the rolled packaging film is placed on the film feeding mechanism 10. After the movable end of the packaging film is pulled through the gap between the limiting ring 40 and the bagging mechanism 30, the left and right ends of the packaging film are gathered towards the center, so that the left and right ends of the packaging film merge together. At this time, the packaging film wraps around the surface of the bagging mechanism 30. The limiting ring 40 can limit and fix the packaging film in the upper area of ​​the bagging mechanism 30. Then, the negative pressure generating mechanism 20 extracts the air in the adsorption structure 310, so that the lower end of the bagging mechanism 30 generates a negative pressure to form a weak adsorption force, so that the packaging film adheres to the surface of the lower end of the bagging mechanism 30. Then, the sealing mechanism 60 seals the left and right ends of the packaging film to form a packaging bag. The film pulling mechanism 50 pulls the packaging film downward. After the sealing mechanism 70 seals the lower end of the packaging bag, the screw feeding mechanism 80 feeds the screw into the packaging bag. The sealing mechanism 70 seals the upper end of the packaging bag, thus completing the packaging of the screw.

[0026] The film feeding mechanism 10 is a rotating roller that rotates when the movable end of the packaging film is pulled. The horizontal cross-section of the limiting ring 40 is semi-circular. The limiting ring 40 can limit the packaging film in the upper area of ​​the bagging mechanism 30, preventing the packaging film from separating from the upper end of the bagging mechanism 30. The negative pressure generating mechanism 20 and the adsorption structure 310 work together to generate negative pressure in the lower area of ​​the bagging mechanism 30, so that the packaging film adheres to the surface of the bagging tube 32. This prevents the packaging film from bending or misaligning when the film pulling mechanism 50 pulls the packaging film downward, thereby improving the bagging effect of the packaging film.

[0027] After the sealing mechanism 70 seals the top of the packaging bag, the top seal of the packaging bag is equivalent to the bottom seal of the next packaging bag. The screw feeding mechanism 80 can feed the second batch of screws into the packaging bag. This cycle can be repeated to achieve the packaging of multiple batches of screws. It should be noted that the screw feeding mechanism 80 is a commonly used feeding mechanism in the field of science, so its structure and working principle will not be described in detail.

[0028] In one embodiment, such as Figure 5 As shown, the bagging mechanism 30 includes a feeding funnel 31 and a bagging tube 32. The feeding funnel 31 is located above the bagging tube 32, and the inlet of the feeding funnel 31 corresponds to the outlet of the screw feeding mechanism 80. A limiting ring 40 is arranged around the outside of the feeding funnel 31. Specifically, the feeding funnel 31 and the bagging tube 32 are integrally formed. The packaging film surrounds and covers the surfaces of the feeding funnel 31 and the bagging tube 32. The limiting ring 40 is used to limit the packaging film in the area of ​​the feeding funnel 31. After the sealing mechanism 70 completes the sealing of the lower end of the packaging bag, the screw is discharged from the outlet of the screw feeding mechanism 80. The screw enters from the feeding funnel 31, flows through the bagging tube 32, and is discharged from the bagging tube 32 into the packaging bag.

[0029] In one embodiment, such as Figure 1 and Figure 5 As shown, the adsorption structure 310 includes an adsorption cavity 311 formed on the surface of the feed funnel 31. The adsorption cavity 311 extends from top to bottom and inward into the bagging tube 32. The outer surface of the bagging tube 32 has a plurality of adsorption holes 321 communicating with the adsorption cavity 311. Specifically, the negative pressure generating mechanism 20 can draw air from the adsorption cavity 311, thereby generating negative pressure at each adsorption hole 321, which causes the packaging film to adhere to the surface of the bagging tube 32.

[0030] In one embodiment, such as Figure 2As shown, the screw packaging device also includes two mounting members 41 and two fixing members 43. The two mounting members 41 are disposed on both sides of the bagging mechanism 30. Each mounting member 41 has multiple fixing holes 411 arranged from left to right. Both ends of the limiting ring 40 have through holes 401. The fixing member 43 passes through the through holes 401 and connects to one of the fixing holes 411 on the corresponding side of the mounting member 41 to fix the limiting ring 40 onto the mounting member 41. In use, depending on the type of packaging film and the size of the feeding funnel 31, by aligning the through holes 401 at both ends of the limiting ring 40 with suitable fixing holes 411 on the two mounting members 41, and then locking the fixing member 43 within the fixing holes 411, it is possible to limit the position of different types of packaging film and to flexibly adjust the size according to the size of the feeding funnel 31.

[0031] In one embodiment, such as Figure 3 and Figure 4 As shown, the negative pressure generating mechanism 20 includes a vacuum pump 21 and an air extraction pipe 22. One end of the air extraction pipe 22 is connected to the vacuum pump 21, and the other end of the air extraction pipe 22 is connected to the adsorption chamber 311. By using the vacuum pump 21 in conjunction with the air extraction pipe 22, air can be extracted from the adsorption holes 321 along the adsorption chamber 311.

[0032] In one embodiment, such as Figure 1 As shown, each of the limiting rings 40 has a curved transition portion 402 at its upper end. Specifically, the transition portion 402 has a curved and smooth transition surface, which can reduce the friction between the limiting ring 40 and the packaging film when the film pulling mechanism 50 pulls the packaging film downward, so that the packaging film can move downward smoothly and it can also prevent the packaging film from being damaged or torn during the pulling process.

[0033] In one embodiment, such as Figure 2 As shown, the sealing mechanism 60 includes two electric push rods 61 and two heat-sealing blocks 62. The two electric push rods 61 are spaced apart in the left-right direction. Each electric push rod 61 is driven and connected to a heat-sealing block 62. In use, the two electric push rods 61 drive the two heat-sealing blocks 62 to move closer together to clamp the left and right ends of the packaging film that are close to each other. The heat emitted by the heat-sealing blocks 62 melts the left and right ends of the packaging film that are in contact with each other, thereby causing the left and right ends of the packaging film to stick together, thus completing the sealing process of the left and right ends of the packaging film. It should be noted that the heat-sealing block 62 is a commonly used component by those skilled in the art, and its heating principle and heating structure will not be described in detail.

[0034] In one embodiment, such as Figure 2 and Figure 3As shown, the film-pulling mechanism 50 includes two drivers 51 and two clamping plates 52. The two drivers 51 are spaced apart from left to right, and each driver 51 is driven to connect with a clamping plate 52. The two clamping plates 52 are disc-shaped. After the sealing mechanism 60 seals the left and right ends of the packaging film, the two clamping plates 52 are used to clamp the sealing strip of the packaging film. When the two drivers 51 drive the two clamping plates 52 to rotate, they generate a vertically downward tangential force, thereby driving the packaging film to move downward.

[0035] In one embodiment, such as Figure 1 As shown, the sealing mechanism 70 includes a driving component 71, and a dynamic heat-sealing clamping block 72 and a fixed heat-sealing clamping block 73 disposed opposite to each other. The driving component 71 is drivenly connected to the dynamic heat-sealing clamping block 72. When the film pulling mechanism 50 pulls the packaging film downward, the lower end of the packaging film is positioned between the limiting clamping block 73 and the heat-sealing clamping block 72. Then, the driving component 71 drives the heat-sealing clamping block 72 to approach the limiting clamping block 73 to clamp the lower end of the packaging film and heat-seal it. At this time, the lower end of the packaging film is closed, forming a packaging bag with an open top. It should be noted that the driving component 71 is a telescopic cylinder.

[0036] In this embodiment, as Figure 4 As shown, the bagging mechanism 30 has an internal discharge channel 312 that extends from top to bottom and passes through the feed funnel 31 and the bagging tube 32. Specifically, the screw feeding mechanism feeds the screw into the inlet of the discharge channel 312. After the screw moves along the discharge channel 312, it is discharged from the outlet of the discharge channel 312 and enters the packaging bag from the upper opening. Then, the film pulling mechanism 50 pulls down the packaging film again, so that the upper opening of the packaging bag is located between the limiting clamp 73 and the heat sealing clamp 72. The driving component 71 drives the heat sealing clamp 72 to approach the limiting clamp 73 to clamp the upper opening of the film and heat seal the upper opening of the packaging film. At this time, the upper opening of the packaging bag is closed, and the screw packaging is completed.

Claims

1. A screw packaging device, comprising a frame, wherein a film feeding mechanism (10) and a screw feeding mechanism (80) are provided on the frame, a bagging mechanism (30) and a sealing mechanism (70) are sequentially provided below the film feeding mechanism (10), and a sealing edge mechanism (60) and a film pulling mechanism (50) are sequentially provided from top to bottom on the inner side of the bagging mechanism (30), wherein the inlet of the bagging mechanism (30) corresponds to the outlet of the screw feeding mechanism (80); characterized in that: A limiting ring (40) is provided around the outer side of the upper end of the bagging mechanism (30). A gap is provided between the limiting ring (40) and the outer surface of the bagging mechanism (30). An adsorption structure (310) is provided longitudinally on the side surface of the bagging mechanism (30) near the sealing mechanism (60). A negative pressure generating mechanism (20) communicating with the adsorption structure (310) is also provided on the frame. A packaging film is placed in the film feeding mechanism (10). The movable end of the packaging film passes through the gap and extends downward. Under the action of the limiting ring (40) and the adsorption structure (310), the packaging film surrounds and covers the outer surface of the bagging mechanism (30), and the left and right ends of the packaging film merge and enter the sealing mechanism (60) and the film pulling mechanism (50) in sequence. The sealing mechanism (60) is used to seal the left and right ends of the packaging film to form a packaging bag. The film pulling mechanism (50) is used to pull the packaging film downward. The sealing mechanism (70) is used to seal the upper and lower ends of the packaging bag.

2. The screw packaging device according to claim 1, characterized in that, The bagging mechanism (30) includes a feeding funnel (31) and a bagging tube (32). The feeding funnel (31) is located above the bagging tube (32). The inlet of the feeding funnel (31) is set to correspond to the outlet of the screw feeding mechanism (80). The limiting ring (40) is arranged around the outside of the feeding funnel (31).

3. The screw packaging device according to claim 2, characterized in that, The adsorption structure (310) includes an adsorption cavity (311) formed in the surface of the feed funnel (31), the adsorption cavity (311) extends from top to bottom into the bagging tube (32), and the outer surface of the bagging tube (32) is provided with a plurality of adsorption holes (321) communicating with the adsorption cavity (311).

4. The screw packaging device according to claim 1, characterized in that, Also includes: Two mounting parts (41) and two fixing parts (43) are provided. The two mounting parts (41) are arranged on both sides of the bagging mechanism (30). The mounting parts (41) are provided with a plurality of fixing holes (411) from left to right. Both ends of the limiting ring (40) are provided with through holes (401). The fixing part (43) passes through the through hole (401) and one of the fixing holes (411) on the corresponding side mounting part (41) to fix the limiting ring (40) to the mounting part (41).

5. The screw packaging device according to claim 1, characterized in that, The negative pressure generating mechanism (20) includes a vacuum pump (21) and a suction pipe (22), one end of which is connected to the vacuum pump (21) and the other end of which is connected to the adsorption structure (310).

6. The screw packaging device according to claim 1, characterized in that, The upper end of the limiting ring (40) is provided with a curved transition portion (402).

7. The screw packaging device according to claim 1, characterized in that, The sealing mechanism (60) includes two electric push rods (61) and two heat sealing blocks (62). The two electric push rods (61) are spaced apart in the left and right direction. Each electric push rod (61) is driven to connect with one of the heat sealing blocks (62). The two electric push rods (61) drive the two heat sealing blocks (62) to move closer to each other to complete the sealing of the left and right ends of the packaging film.

8. The screw packaging device according to claim 1, characterized in that, The film pulling mechanism (50) includes two drivers (51) and two clamps (52). The two drivers (51) are spaced apart from left to right. Each driver (51) is driven to connect with one of the clamps (52). The two clamps (52) are used to clamp the left and right ends of the packaging film. The two drivers (51) are used to drive the two clamps (52) to rotate so as to drive the packaging film to move downward.

9. The screw packaging device according to claim 1, characterized in that, The sealing mechanism (70) includes: a driving member (71), and a dynamic heat sealing clamp (72) and a fixed heat sealing clamp (73) arranged opposite to each other. The driving member (71) is driven to connect with the dynamic heat sealing clamp (72). The driving member (71) is used to drive the dynamic heat sealing clamp (72) to approach the fixed heat sealing clamp (73) to seal the upper and lower ends of the packaging film.

10. The screw packaging device according to claim 2, characterized in that, The bagging mechanism (30) has an outlet channel (312) that extends from top to bottom and passes through the feed funnel (31) and the bagging tube (32).

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