Feeding device for packaging bag forming

Abstract

The utility model relates to the technical field of plastic bag production, in particular to a feeding device for packaging bag forming, the feeding device for packaging bag forming comprises a feeding barrel, a cover body capable of sliding along the inner wall of the feeding barrel is arranged on the feeding barrel, a plurality of through grooves are formed in the cover body, and each through groove is used for being connected with a suction pipe; the top wall of the feeding barrel is fixedly connected with a downward pressing piece, an elastic piece is arranged between the downward pressing piece and the cover plate, the two ends of the elastic piece are fixedly connected with the downward pressing piece and the cover plate respectively, the elastic piece is used for pushing the cover body in the direction close to the bottom wall of the feeding barrel, and therefore in the process that the material suction pipe sucks the material body to the material bin, the position of the material suction pipe does not need to be manually and frequently adjusted; and the effect of improving the feeding efficiency is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of plastic bag production, and in particular to a feeding device for forming packaging bags. Background Art

[0002] At present, when producing plastic bags, a plastic bag blowing machine is generally used. The main principle is that plastic pellets are melted and quantitatively extruded in a screw extruder, then formed through a die head, blown and cooled by an air ring, and then pulled by a tractor at a certain speed, and wound into a roll by a winding machine.

[0003] When feeding the existing plastic bag blowing machine, a vacuum suction pipe is inserted into the feeding container, and the plastic pellets are sucked into the hopper of the screw extruder by suction.

[0004] The above-mentioned prior art solutions have the following defects: The diameter of the feeding container is relatively large. When using a vacuum suction pipe to suck materials, the vacuum suction pipe usually cannot be directly inserted to the bottom of the feeding container. As the vacuum suction pipe adsorbs the materials in the feeding container, there are no materials that can be adsorbed within the suction range of the vacuum suction pipe. Therefore, it is necessary to manually continuously adjust the position of the vacuum suction pipe, resulting in low working efficiency when sucking the materials into the hopper of the screw extruder. Summary of the Utility Model

[0005] In order to improve the feeding efficiency when the suction pipe sucks the materials in the feeding container into the hopper, the present application provides a feeding device for forming packaging bags.

[0006] The above technical object of the present application is achieved through the following technical solutions:

[0007] A feeding device for forming packaging bags includes a feeding bucket, on which a cover body that can slide along the inner wall of the feeding bucket is provided. A plurality of through grooves are opened on the cover body, and each through groove is used to connect with a suction pipe; a pressing member is fixedly connected to the top wall of the feeding bucket, and an elastic member is arranged between the pressing member and the cover plate. Two ends of the elastic member are respectively fixedly connected to the pressing member and the cover plate, and the elastic member is used to push the cover body towards the direction close to the bottom wall of the feeding bucket.

[0008] By adopting the above solution, under the action of the elastic member, the cover body can continuously move towards the direction close to the bottom wall of the feeding bucket. That is, when the suction pipe sucks the materials in the feeding bucket, the materials in the feeding bucket gradually decrease. In this state, the elastic member continuously pushes the cover body towards the direction close to the bottom wall of the feeding body, so that the materials are continuously within the adsorption range of the suction pipe. Furthermore, during the process of the suction pipe adsorbing the materials into the hopper, there is no need to manually frequently adjust the position of the suction pipe, achieving the effect of improving the feeding efficiency.

[0009] Furthermore, a connection groove is provided at the notch of each of the through grooves, and a connecting plate is fixedly connected to the peripheral side of the suction pipe corresponding to the connection groove. When the suction pipe is inserted into the through groove, the connecting plate is inserted and matched with the connection groove. The upper cover body is further provided with a locking component for locking the positional relationship between the suction pipe and the connection groove.

[0010] Furthermore, the locking component includes a locking plate, a pushing plate, a pushing rod, and a locking rod. The locking plate is fixedly connected to the top wall of the cover body. A threaded hole is provided on the locking plate. The pushing rod passes through the threaded hole and is threadedly connected to the threaded hole. The pushing plate is arranged between the locking plate and the connection groove. The bottom wall of the pushing plate abuts against the cover body, and the end of the pushing rod abuts against the pushing plate. A locking rod is fixedly connected to the pushing plate corresponding to each connection groove. A through hole is provided in the connection groove corresponding to each locking rod. One end of each locking rod away from the pushing plate passes through the corresponding through hole and abuts against the connecting plate.

[0011] By adopting the above scheme, inserting and matching the connecting plate with the connection groove can limit the insertion state of the suction pipe and the connection groove. Then rotate the pushing rod. Since the pushing rod is threadedly connected to the locking plate, the pushing rod can move in the direction close to the pushing plate. Also, because the pushing plate abuts against the cover body, the pushing rod can push the pushing plate in the direction close to the connection groove, thereby driving each locking rod to move in the direction close to the connection groove until each locking rod passes through the corresponding through hole and abuts against the connecting plate, thus locking the positional relationship between the connecting plate and the connection groove, and further locking the connection state between the suction pipe and the connection groove.

[0012] Furthermore, support plates are fixedly connected to both sides of the feeding bucket. A rotating rod is arranged between the two support plates. The two ends of the rotating rod are respectively rotatably connected to the two support plates. A pulling rope is arranged between the rotating rod and the cover body. One end of the pulling rope is wound around the rotating rod and fixedly connected to the rotating rod, and the other end of the pulling rope is fixedly connected to the cover body.

[0013] Furthermore, a rotating rod is arranged on the support plate. The rotating rod passes through the side wall of the support plate and is fixedly connected to the rotating rod. The rotating rod is rotatably connected to the side wall of the support plate.

[0014] By adopting the above scheme, by rotating the rotating rod, the rotating rod can be driven to rotate around the support plate, and then the pulling rope is wound around the rotating rod one by one, thereby driving the cover body to move away from the bottom wall of the feeding bucket until the cover body is completely separated from the feeding bucket, and thus the inside of the feeding bucket can be replenished with the material.

[0015] Further, a sliding ring is sleeved on the rotating rod. The sliding ring is slidably connected to the rotating rod. A limiting rod is fixedly connected to the sliding ring. A limiting groove is formed in the side wall of the support plate. After the relative positions of the rotating rod and the support plate are determined, the sliding ring is pushed towards the support plate until the limiting rod is inserted into and engaged with the limiting groove.

[0016] By adopting the above scheme, after the relative position relationship between the cover body and the feeding barrel is determined, the sliding ring is pushed towards the side wall of the feeding barrel, and then the sliding ring is rotated so that the sliding ring rotates around the rotating rod until the limiting rod is inserted into and engaged with the limiting groove, thereby limiting the rotating rod and further limiting the relative position relationship between the cover body and the feeding barrel.

[0017] Further, a magnetic attraction piece is fixedly connected to the side wall of the limiting groove. The limiting rod is made of a magnetizable material. When the limiting rod is inserted into and engaged with the limiting groove, the magnetic attraction piece is magnetically connected to the limiting rod.

[0018] By adopting the above scheme, the limiting rod is magnetically connected to the limiting groove, thereby further locking the inserted state of the limiting plate and the limiting groove, making the rotating rod unable to rotate, the rotating rod unable to rotate, and the relative position relationship between the cover body and the feeding barrel more stable.

[0019] Further, an anti - detachment plate is fixedly connected to the end of the rotating rod far away from the rotating rod.

[0020] By adopting the above scheme, it is avoided that the sliding ring falls off through the rotating rod.

[0021] In summary, the present application has the following technical effects:

[0022] 1. By providing an elastic member, under the action of the elastic member, the cover body can be continuously moved towards the bottom wall of the feeding barrel. The elastic member continuously pushes the cover body towards the bottom wall of the feeding body, so that the material is continuously within the adsorption range of the suction pipe. Therefore, during the process of the suction pipe adsorbing the material to the storage bin, there is no need for manual frequent adjustment of the position of the suction pipe, achieving the effect of improving the feeding efficiency.

[0023] 2. By providing a magnetic attraction piece, the limiting rod is magnetically connected to the limiting groove, thereby further locking the inserted state of the limiting plate and the limiting groove, making the rotating rod unable to rotate, the rotating rod unable to rotate, and the relative position relationship between the cover body and the feeding barrel more stable.

[0024] 3. By providing a rotating rod, rotating the rotating rod can drive the rotating rod to rotate around the support plate, so that the pull rope is wound around the rotating rod one by one, and then drive the cover body to move away from the bottom wall of the feeding barrel until the cover body is completely separated from the feeding barrel, thereby enabling the replenishment of the material in the feeding barrel. Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of a feeding device for forming a packaging bag in this application;

[0026] Figure 2 It is a schematic structural diagram of the feeding hopper of this application;

[0027] Figure 3 It is a schematic structural diagram of the locking component of this application for locking the connecting groove and the connecting plate;

[0028] Figure 4 It is a schematic structural diagram of the limiting component of this application;

[0029] Figure 5 It is a schematic structural diagram of the state where the connecting groove and the connecting plate of this application are not inserted.

[0030] In the figure, 1, feeding hopper; 2, cover body; 21, connecting groove; 3, pressing member; 4, elastic member; 5, suction pipe; 52, connecting plate; 6, locking component; 61, locking plate; 62, pushing plate; 63, pushing rod; 64, locking rod; 7, cover opening component; 71, support plate; 711, limiting groove; 7111, magnetic attraction piece; 72, rotating rod; 73, pulling rope; 74, rotating rod; 8, limiting component; 81, sliding ring; 82, limiting rod; 83, anti - detachment plate. Specific embodiments

[0031] The following further elaborates on this application in conjunction with the attached drawings.

[0032] Refer to Figure 1 , a feeding device for forming a packaging bag provided in this embodiment includes a feeding hopper 1, a cover body 2, a pressing member 3, an elastic member 4, and a suction pipe 5 for adsorbing the material in the feeding hopper 1 into the bin. The cover body 2 is slidably connected to the inner wall of the feeding hopper 1. A plurality of through - slots are opened on the cover body 2, and each through - slot is correspondingly inserted and matched with a suction pipe 5. In this embodiment, three through - slots are opened, and the three through - slots are linearly and evenly arranged; the pressing member 3 is L - shaped, and there are two pressing members 3, which are symmetrically arranged on both sides of the feeding hopper 1. One end of each pressing member 3 is fixedly connected to the side wall of the feeding hopper 1; between one end of each pressing member 3 away from the feeding hopper 1 and the cover body 2, there is correspondingly an elastic member 4, and both ends of each elastic member 4 are respectively fixedly connected to the pressing member 3 and the cover body 2; the elastic member 4 is used to continuously push the cover body 2 towards the direction close to the bottom wall of the feeding hopper 1, thereby driving each suction pipe 5 to move synchronously, so that during the suction process of the suction pipe 5, there is always material within the suction radiation range of the suction pipe 5 until the material in the feeding hopper 1 is completely adsorbed; in this embodiment, the elastic member 4 is preferably a spring.

[0033] Refer to Figure 1 andFigure 5 , on one side of each through groove away from the bottom wall of the feeding bucket 1, a connecting groove 21 is provided. The whole of each connecting groove 21 is in a circular ring shape. The bottom wall of each connecting groove 21 is fixedly connected to the cover body 2. At a position near the port of each suction pipe 5, a connecting plate 52 is fixedly connected corresponding to the connecting groove 21, and the whole of the connecting plate 52 is circular; when the suction pipe 5 is in plug-in fit with the through groove, the connecting plate 52 is in plug-in fit with the connecting groove 21; a locking component 6 is arranged between the connecting plate 52 and the connecting groove 21, and the locking component 6 is used to lock the plug-in state of the connecting plate 52 and the connecting groove 21.

[0034] Refer to Figures 1 - 3 , the locking component 6 includes a locking plate 61, a pushing plate 62, a pushing rod 63 and a locking rod 64. The locking plate 61 is fixedly connected to the top wall of the cover body 2. A threaded hole is provided on the locking plate 61. The pushing rod 63 passes through the threaded hole, and the pushing rod 63 is threadedly connected to the threaded hole; the pushing plate 62 is arranged between the locking plate 61 and the connecting groove 21. The bottom wall of the pushing plate 62 abuts against the cover body 2, and the end of the pushing rod 63 abuts against the pushing plate 62; a locking rod 64 is fixedly connected to the pushing plate 62 corresponding to each connecting groove 21. A through hole is provided in the connecting groove 21 corresponding to each locking rod 64. One end of each locking rod 64 away from the pushing plate 62 passes through the corresponding through hole and abuts against the connecting plate 52; by rotating the pushing rod 63, the pushing rod 63 can push the pushing plate 62 to move, and the pushing plate 62 can drive each locking rod 64 to pass through the corresponding through hole and abut against the connecting plate 52 respectively, so as to lock the relative positions of the connecting plate 52 and the connecting groove 21.

[0035] Refer to Figures 1 - 3 , an opening cover component 7 is arranged on the feeding bucket 1. The opening cover component 7 is used to pull the cover body 2 away from the feeding bucket 1,

[0036] so that the feeding bucket 1 can be opened, and then the material can be poured into the feeding bucket 1; the opening cover component 7 includes a support plate 71, a rotating rod 72, a pulling rope 73 and a rotating rod 74. In this embodiment, there are two support plates 71, and the two support plates 71 are fixedly connected to both sides of the feeding bucket 1 where the elastic member 4 is not provided, and are symmetrically arranged; the rotating rod 72 is arranged between the two support plates 71, and both ends of the rotating rod 72 are rotatably connected to the two support plates 71; the rotating rod 74 is located at one end of the rotating rod 72, and the rotating rod 74 passes through the side wall of the support plate 71 and is fixedly connected to the rotating rod 72, and the rotating rod 74 is rotatably connected to the side wall of the support plate 71; one end of the pulling rope 73 is wound around the rotating rod 72, and the other end of the pulling rope 73 is fixedly connected to the cover body 2.

[0037] Refer to Figure 3, by rotating the rotating rod 74, the rotating rod 72 can be driven to rotate around the support plate 71, and then the pulling rope 73 is wound around the rotating rod 72 one by one, thereby driving the cover body 2 to move away from the bottom wall of the feeding barrel 1 until the cover body 2 is completely separated from the feeding barrel 1, and then the feeding barrel 1 can be replenished with the material.

[0038] Referring to Figures 3 - 4 , a limiting component 8 is arranged on the rotating rod 74. The limiting component 8 is used to lock the relative position relationship between the rotating rod 74 and the support plate 71. The limiting component 8 includes a sliding ring 81, a limiting rod 82 and an anti-detaching plate 83. The sliding ring 81 is sleeved on the rotating rod 74, and the sliding ring 81 is slidably connected with the rotating rod 74. The limiting rod 82 is fixedly connected with the sliding ring 81, and the anti-detaching plate 83 is fixedly connected with one of the rotating rod 74 away from the support plate 71; the arrangement of the anti-detaching rod can prevent the sliding ring 81 from falling off the rotating rod 72; the support plate 71 is provided with a limiting groove 711, and a magnetic attraction sheet 7111 is fixedly connected in the limiting groove 711; push the sliding ring 81 to move towards the support plate 71, and then drive the sliding ring 81 to rotate around the rotating rod 74 until the limiting rod 82 is inserted and matched with the limiting groove 711, and the limiting rod 82 is magnetically connected with the magnetic attraction sheet 7111, so as to limit the position relationship between the rotating rod 74 and the support plate 71, and further limit the relative position relationship between the rotating rod 72 and the support plate 71, and further limit the relative position relationship between the cover body 2 and the feeding barrel 1; in this embodiment, the limiting rod 82 is preferably made of a magnetizable material, for example, iron.

[0039] The implementation principle of a feeding device for forming a packaging bag in an embodiment of the present application is as follows: Each connecting plate 52 on each suction pipe 5 is respectively inserted and matched with a connecting groove 21; then the push rod 63 is rotated in the direction close to the push plate 62. The push rod 63 can push the push plate 62 to move. The push rod 63 can drive each locking rod 64 to pass through the through hole and abut against the connecting plate 52, so that the relative position of the connecting plate 52 and the connecting groove 21 is locked, and thus each suction pipe 5 is fixedly connected to the cover body 2; As the material in the feeding bucket 1 becomes less and less, the elastic member 4 continuously pushes the cover body 2 in the direction close to the bottom wall of the feeding bucket 1, so that there is always material that can be sucked within the radiation range of each suction pipe 5 until the material in the feeding bucket 1 is completely adsorbed; Rotating the rotating rod 74 can drive the rotating rod 72 to rotate around the support plate 71, so that the pull rope 73 is wound around the rotating rod 72 one by one, and then drives the cover body 2 to move away from the bottom wall of the feeding bucket 1 until the cover body 2 is completely separated from the feeding bucket 1, so that the feeding bucket 1 can be replenished with material; When the separation state of the cover body 2 and the feeding bucket 1 is fixed, the sliding ring 81 is pushed to move in the direction close to the support plate 71, and then the sliding ring 81 is driven to rotate around the rotating rod 74 until the limiting rod 82 is inserted and matched with the limiting groove 711, and the limiting rod 82 is magnetically connected to the magnetic attraction piece 7111, so that the position relationship between the rotating rod 74 and the support rod is limited, and then the relative position relationship between the rotating rod 72 and the support plate 71 is limited, and then the relative position relationship between the cover body 2 and the feeding bucket 1 is limited.

[0040] This specific embodiment is only an interpretation of the present application, and it is not a limitation of the present application. Those skilled in the art can make modifications without creative contributions to this embodiment according to needs after reading this specification, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. A feeding device for forming a packaging bag, characterized in that: It includes a feeding bucket (1) on which a cover body (2) that can slide along the inner wall of the feeding bucket (1) is provided. A plurality of through grooves are formed in the cover body (2), and each through groove is used for connecting with a suction pipe (5); a pressing member (3) is fixedly connected to the top wall of the feeding bucket (1). An elastic member (4) is arranged between the pressing member (3) and the cover plate. Two ends of the elastic member (4) are respectively fixedly connected to the pressing member (3) and the cover plate. The elastic member (4) is used to push the cover body (2) in the direction close to the bottom wall of the feeding bucket (1).

2. The feeding device for forming a packaging bag according to claim 1, wherein: A connecting groove (21) is provided at the notch of each through groove. A connecting plate (52) is fixedly connected to the periphery of the suction pipe (5) corresponding to the connecting groove (21). When the suction pipe (5) is inserted into the through groove, the connecting plate (52) is inserted and matched with the connecting groove (21). A locking assembly (6) is further provided on the cover body (2). The locking assembly (6) is used to lock the positional relationship between the suction pipe (5) and the connecting groove (21).

3. The feeding device for forming a packaging bag according to claim 2, wherein: The locking assembly (6) includes a locking plate (61), a pushing plate (62), a pushing rod (63) and a locking rod (64). The locking plate (61) is fixedly connected to the top wall of the cover body (2). A threaded hole is formed in the locking plate (61). The pushing rod (63) passes through the threaded hole, and the pushing rod (63) is threadedly connected to the threaded hole; the pushing plate (62) is arranged between the locking plate (61) and the connecting groove (21). The bottom wall of the pushing plate (62) abuts against the cover body (2), and the end of the pushing rod (63) abuts against the pushing plate (62); A locking rod (64) is fixedly connected to the pushing plate (62) corresponding to each connecting groove (21). A through hole is formed in the connecting groove (21) corresponding to each locking rod (64). One end of each locking rod (64) far from the pushing plate (62) passes through the corresponding through hole and abuts against the connecting plate (52).

4. A feeding device for forming a packaging bag according to claim 1, characterized in that: Support plates (71) are fixedly connected to both sides of the feeding bucket (1). A rotating rod (72) is arranged between the two support plates (71). Two ends of the rotating rod (72) are respectively rotatably connected to the two support plates (71). A pull rope (73) is arranged between the rotating rod (72) and the cover body (2). One end of the pull rope (73) is wound around the rotating rod (72) and fixedly connected to the rotating rod (72), and the other end of the pull rope (73) is fixedly connected to the cover body (2).

5. The feeding device for forming a packaging bag according to claim 4, wherein: A rotating rod (74) is arranged on the support plate (71). The rotating rod (74) passes through the side wall of the support plate (71) and is fixedly connected to the rotating rod (72). The rotating rod (74) is rotatably connected to the side wall of the support plate (71).

6. The feeding device for forming a packaging bag according to claim 5, characterized in that: A sliding ring (81) is sleeved on the rotating rod (74). The sliding ring (81) is slidably connected to the rotating rod (74). A limiting rod (82) is fixedly connected to the sliding ring (81). A limiting groove (711) is formed in the side wall of the support plate (71); when the relative position between the rotating rod (72) and the support plate (71) is determined, the sliding ring (81) is pushed in the direction close to the support plate (71) until the limiting rod (82) is inserted and matched with the limiting groove (711).

7. A feeding device for forming a packaging bag according to claim 6, characterized in that: The side wall of the limiting groove (711) is fixedly connected with a magnetic sheet (7111), the limiting rod (82) is made of a magnetizable material, and when the limiting rod (82) is inserted and matched with the limiting groove (711), the magnetic sheet (7111) is magnetically connected with the limiting rod (82).

8. The feeding device for forming a packaging bag according to claim 6, characterized in that: One end of the rotating rod (74) far away from the rotating rod (72) is fixedly connected with a anti - detachment plate (83).

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