Bag opening maintaining device for powder cavity of powder-liquid double-chamber bag

Abstract

The utility model relates to the technical field of bag opening devices, in particular to a bag opening maintaining device for a powder cavity of a powder-liquid double-chamber bag, which comprises a mounting frame, a conveying system, a bag opening mechanism and a powder filling mechanism, and a clamp comprises a connecting plate, a first swing arm, a second swing arm and an adjustable swing arm; the connecting plate is connected with the conveying belt, a first swing arm and a second swing arm are hinged to the side face, away from the conveying bag, of the connecting plate, the first swing arm and the second swing arm conduct transmission, and a first positioning column and a second positioning column which are used in cooperation with positioning holes in the powder-liquid double-chamber bag are correspondingly arranged on the first swing arm and the second swing arm. An adjustable swing arm is arranged at the bottom of the first swing arm; the powder filling mechanism comprises a maintaining supporting strip, the maintaining supporting strip is arranged at the top of the mounting frame, and the maintaining supporting strip is used for abutting against the adjustable swing arm and maintaining the rotating angle of the first swing arm, so that the open state of a powder cavity, connected with the clamp, of the top of the powder-liquid double-chamber bag is maintained.

Description

Technical Field

[0001] This utility model relates to the field of bag opening device technology, specifically to a powder-liquid dual-chamber bag powder cavity opening and maintenance device. Background Technology

[0002] Currently, the bag opening device of the powder filling machine for dual-chamber powder and liquid dispensing consists of a suction cup, an electric cylinder for opening, and an opening mechanism to complete the entire opening action. First, a set of pre-trimmed product bags is conveyed to the opening station by a circular belt. Then, under the action of the electric cylinder, the suction cup adheres to the outer surface of the powder chamber of the product bag. The suction cup then draws a vacuum. When the actual value of the vacuum pressure detection switch reaches the set value, the electric cylinder for opening continues to perform the action to open the bag. Then, the powder chamber is filled with powder through the dispensing head. After the powder filling is completed, the electric cylinder for opening is activated, and the suction cup closes the opened powder chamber. Finally, the electric cylinder for opening returns to its original position.

[0003] The existing bag-opening device of the dual-chamber powder filling machine involves feeding the product bag to the powder filling station via a circular track and clamps. The bag-opening device then clamps the powder chamber of the product bag after the waste edges have been trimmed, followed by a series of sequential powder filling actions. This process results in a long cycle time, impacting overall work efficiency. Therefore, there is an urgent need for a device that can shorten the overall clamping cycle and improve production efficiency to address the current problems of cumbersome, difficult, and time-consuming clamping actions, and the inability to keep the clamps open for extended periods. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a new type of pre-opening device for a double-chamber bag powder filling machine, so as to solve the problems that the opening action of the existing double-chamber bag powder filling machine is cumbersome, difficult and time-consuming, and the clamps are difficult to keep in the open state for a long time.

[0005] A powder-liquid dual-chamber bag powder chamber opening and holding device includes a mounting frame, a conveying system, a bag opening mechanism, and a powder filling mechanism. The top of the mounting frame is connected to an annular conveying system via a connecting column. The conveying system includes a horizontally arranged annular guide rail, which is mounted on the connecting column. A conveyor belt is arranged on the outer side of the annular guide rail. A clamp is connected to the side of the conveyor belt away from the annular guide rail. The conveyor belt is used to move the powder-liquid dual-chamber bag from the bag opening mechanism to the powder filling mechanism.

[0006] The fixture includes a connecting plate, a first swing arm, a second swing arm, and an adjustable swing arm; the connecting plate is connected to the conveyor belt, and the first swing arm and the second swing arm are hinged to the side of the connecting plate away from the conveyor bag. The first swing arm and the second swing arm drive each other. The first swing arm and the second swing arm are respectively provided with a first positioning post and a second positioning post that cooperate with the positioning holes on the powder and liquid double chamber bag. An adjustable swing arm is provided at the bottom of the first swing arm.

[0007] The powder filling mechanism includes a retaining strip, which is located on the top of the mounting frame and is used to abut against the rollers on the adjustable swing arm to maintain the rotation angle of the first swing arm.

[0008] Furthermore, the powder filling mechanism includes a fixed frame spaced above the holding strip, and a funnel is provided on the fixed frame for filling the powder into the powder chamber of the powder-liquid double-chamber bag.

[0009] Furthermore, the bottom of the retaining bar is threadedly connected to a support column, and the bottom of the support column is threadedly connected to a mounting bracket.

[0010] Furthermore, the bag opening mechanism includes an opening clamping cylinder disposed at the bottom of the mounting frame. The opening clamping cylinder is connected to an opening clamping support strip disposed above the mounting frame. The opening clamping cylinder is used to control the up and down movement of the opening clamping support strip. The opening clamping support strip can abut against the adjustable swing arm to control the rotation angle of the first swing arm.

[0011] Furthermore, the bag opening mechanism also includes mounting plates disposed on both sides of the clamp. A bag opening servo cylinder is disposed on the side of the mounting plate away from the clamp, and a suction cup is disposed on the side of the mounting plate closer to the clamp.

[0012] Furthermore, a first positioning post is provided at the top of the first swing arm, a second positioning post is provided at the top of the second swing arm, the bottom ends of the first swing arm and the bottom ends of the second swing arm are connected by a spring, and a first limiting post for limiting the rotation range of the first swing arm and a second limiting post for limiting the rotation range of the second swing arm are provided at the bottom end of the connecting plate on the side away from the transmission belt.

[0013] Furthermore, positioning plates are provided on the side of the first and second swing arms that are away from the conveyor belt.

[0014] Beneficial effects: The support bar can cooperate with the adjustable swing arm to adjust the transmission angle of the first swing arm. The first swing arm controls the rotation angle of the second swing arm through the interaction between the transmission teeth, thereby adjusting the distance between the first and second positioning posts correspondingly set on the first and second swing arms. In the prior art, the powder liquid double chamber bag has symmetrical positioning holes on both sides. The positioning holes are used for the insertion of the first or second positioning post. The positions of the two sides of the powder liquid double chamber bag can be adjusted by the first and second positioning posts, thereby controlling the opening or closing of the top opening of the powder liquid double chamber bag. The cooperation between the support bar and the adjustable swing arm can easily and conveniently open the powder liquid double chamber bag and keep the top opening of the powder liquid double chamber bag open. The whole process is simple, convenient and quick. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the specification will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the clamp structure according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the clamping support strip structure in an embodiment of the present utility model.

[0019] In the diagram: 1. Mounting bracket; 2. Connecting column; 3. Circular guide rail; 4. Conveyor belt; 5. Clamp; 501. First swing arm; 5011. First positioning column; 502. Second swing arm; 5021. Transmission gear; 5022. Second positioning column; 503. Spring; 504. Positioning plate; 505. Adjustable swing arm; 5061. First limit column; 5062. Second limit column; 507. Connecting plate; 508. Roller; 6. Opening clamping bar; 7. Opening clamping cylinder; 8. Mounting plate; 9. Bag opening servo cylinder; 10. Suction cup; 11. Holding bar; 12. Support column; 13. Funnel; 14. Fixing bracket; 15. Support frame. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. For ease of explanation, the terms "vertical", "horizontal", "left", "right", "upper", "lower", "inner", "outer", "bottom", etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] It should be noted that the embodiments and features involved in the embodiments of this utility model can be combined with each other without conflict. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0022] like Figure 1 and Figure 2The illustrated powder-liquid dual-chamber bag powder chamber opening and holding device includes a mounting frame 1, an annular conveying system, a bag opening mechanism, and a powder filling mechanism. The top of the mounting frame 1 is connected to the annular conveying system via a connecting column 2. The conveying system includes a horizontally arranged annular guide rail 3, which is mounted on the top of the connecting column 2. A conveyor belt 4 is arranged on the outer side of the annular guide rail 3. A clamp 5 is installed on the side of the conveyor belt 4 away from the annular guide rail 3. The conveyor belt 4 is used to move the powder-liquid dual-chamber bag from the bag opening mechanism to the powder filling mechanism. The conveying system is prior art.

[0023] The clamp 5 includes a connecting plate 507, a first swing arm 501, a second swing arm 502, and an adjustable swing arm 505. The connecting plate 507 is connected to the conveyor belt 4. The first swing arm 501 and the second swing arm 502 are hinged to the side of the connecting plate 507 away from the conveyor bag. The first swing arm 501 and the second swing arm 502 are provided with transmission teeth 5021 on adjacent sides. The first swing arm 501 and the second swing arm 502 are driven by the transmission teeth 5021 and 5021. The first swing arm 501 and the second swing arm 502 are respectively provided with a first positioning post 5011 and a second positioning post 5022 that cooperate with the positioning holes on the double-chamber bag. The adjustable swing arm 505 is provided at the bottom of the first swing arm 501. A roller 508 is rotatably connected to the bottom of the adjustable swing arm 505.

[0024] The top end of the adjustable swing arm 505 is sleeved on the first swing arm 501. A locking screw is provided on the side of the adjustable swing arm 505. The locking screw is used to abut against the side of the first swing arm 501 through the end of the locking screw after the adjustable swing arm 505 is adjusted in height, thereby fixing the adjustable swing arm 505.

[0025] The powder filling mechanism includes a retaining strip 11 and a funnel 13 mounted on a fixed frame 14; the top of the mounting frame 1 is provided with a retaining strip 11, which is used to abut against the roller 508, so that the first swing arm 501 rotates and maintains the rotation angle of the first swing arm 501.

[0026] In this embodiment, the support bar 11 can cooperate with the roller 508 to adjust the transmission angle of the first swing arm 501. The first swing arm 501 controls the rotation angle of the second swing arm 502 through the interaction between the transmission teeth 5021, thereby adjusting the distance between the first positioning post 5011 and the second positioning post 5022 correspondingly provided on the first swing arm 501 and the second swing arm 502. In the prior art, the powder liquid double chamber bag is symmetrically provided with positioning holes on both sides. The positioning holes are used for the insertion of the first positioning post 5011 or the second positioning post 5022. The positions of the two sides of the powder liquid double chamber bag can be adjusted by the first positioning post 5011 and the second positioning post 5022, thereby controlling the opening or closing of the top opening of the powder liquid double chamber bag. The cooperation between the support bar 11 and the adjustable swing arm 505 can easily and conveniently open the powder liquid double chamber bag and keep the top opening of the powder liquid double chamber bag open. The whole process is simple, convenient and quick.

[0027] The top surface of the mounting bracket 1 is provided with several support brackets 15, and support columns 12 are threadedly connected to the support brackets 15. The top of the support column 12 is threadedly connected to a retaining strip 11.

[0028] In this embodiment, the height of the support bar 11 can be adjusted by rotating the support column 12, which is simple and convenient.

[0029] A fixing frame 14 is provided at intervals above the support strip 11, and a funnel 13 for dispensing powder is provided on the fixing frame 14.

[0030] In this embodiment, the funnel 13 is provided to facilitate the dispensing of powder.

[0031] It also includes a bag opening mechanism, which includes a clamping cylinder 7 installed at the bottom of the mounting frame 1. The clamping cylinder 7 is connected to a clamping support strip 6 set above the mounting frame 1. The clamping cylinder 7 is used to control the up and down movement of the clamping support strip 6. The clamping support strip 6 can abut against the adjustable swing arm 505 to control the rotation angle of the first swing arm 501.

[0032] The bag opening mechanism also includes mounting plates 8 on both sides of the clamp 5. A bag opening servo cylinder 9 is provided on the side of the mounting plate 8 away from the clamp 5, and a suction cup 10 is provided on the side of the mounting plate 8 close to the clamp 5.

[0033] In this embodiment, the bag-opening servo cylinder 9 is used to control the mounting plate 8 to move closer to or away from the clamp 5. When the mounting plate 8 moves closer to the clamp 5, the suction cup 10 set on the mounting plate 8 sucks up the side of the powder liquid double chamber bag.

[0034] The top of the first swing arm 501 is provided with a first positioning post 5011, and the top of the second swing arm 502 is provided with a second positioning post 5022. The bottom ends of the first swing arm 501 and the second swing arm 502 are connected by a spring 503. The bottom end of the connecting plate 507 on the side away from the conveyor belt is provided with a first limiting post 5061 for limiting the rotation range of the first swing arm 501 and a second limiting post 5062 for limiting the rotation range of the second swing arm 502. The side of the first swing arm 501 and the second swing arm 502 away from the conveyor belt 4 is provided with a positioning plate 504.

[0035] In this embodiment, the first positioning post 5011 and the second positioning post 5022 are used to cooperate with the positioning holes provided on both sides of the powder and liquid double chamber bag to hang the powder and liquid double chamber bag. The spring 503 is used to restore the first swing arm 501 and the second swing arm 502 to their original positions. The first limiting post 5061 and the second limiting post 5062 are used to correspondingly limit the rotation range of the first swing arm 501 and the second swing arm 502. The positioning plate 504 is used to cooperate with the first swing arm 501 or the second swing arm 502 to clamp the edge of the powder and liquid double chamber bag.

[0036] Working principle: After the powder chamber opens, the double-chamber bag containing powder and liquid is installed on the clamp 5. The conveyor belt 4 drives the clamp 5 to rotate. When the clamp 5 moves above the opening support bar 6, the conveyor belt 4 stops moving, and the opening cylinder 7 drives the opening support bar 6 to move upward. The opening support bar 6 abuts against the adjustable swing arm 505 and moves upward. The first swing arm 501 and the second swing arm 502 rotate, and the first positioning post 5011 and the second positioning post 5022 approach each other, causing the double-chamber bag containing powder and liquid to bend. Then, the opening cylinder 7 drives the opening support bar 6 to move downward, and the opening support bar 6 disengages from the adjustable swing arm 505. The above process completes the kneading at the opening of the powder chamber; then the clamp 5... The opening servo cylinders on both sides push the mounting plate 8 closer to the clamp 5. The suction cup 10 picks up the two sides of the powder chamber of the powder-liquid dual-chamber bag. At the same time, the clamping cylinder 7 pushes the clamping support 6 to move upward. The clamping support 6 abuts against the adjustable swing arm 505. The first positioning post 5011 and the second positioning post 5022 approach each other. The top opening of the powder chamber opens and remains open. Then the conveyor belt 4 starts, the clamp 5 moves, and the powder-liquid dual-chamber bag moves to the holding support 11 while remaining open. After the bottom of the funnel 13 is aligned with the opening of the powder chamber, the conveyor belt 4 stops moving and the powder is poured into the powder chamber through the funnel 13. After the powder is poured, the powder-liquid dual-chamber bag is moved to the next station.

[0037] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if such modifications and modifications fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include such modifications and modifications.

Claims

1. A powder-liquid dual-chamber bag powder chamber openable bag holding device, characterized in that, It includes a mounting frame, a conveying system, a bag opening mechanism, and a powder filling mechanism. The top of the mounting frame is connected to a ring conveying system via a connecting column. The conveying system includes a horizontally arranged ring guide rail, which is mounted on the connecting column. A conveyor belt is provided on the outside of the ring guide rail. A clamp is connected to the side of the conveyor belt away from the ring guide rail. The conveyor belt is used to move the powder liquid double chamber bag from the bag opening mechanism to the powder filling mechanism. The fixture includes a connecting plate, a first swing arm, a second swing arm, and an adjustable swing arm; the connecting plate is connected to the conveyor belt, and the first swing arm and the second swing arm are hinged to the side of the connecting plate away from the conveyor bag. The first swing arm and the second swing arm drive each other. The first swing arm and the second swing arm are respectively provided with a first positioning post and a second positioning post that cooperate with the positioning holes on the powder and liquid double chamber bag. An adjustable swing arm is provided at the bottom of the first swing arm, and a roller is provided at the bottom of the adjustable swing arm. The powder filling mechanism includes a retaining strip, which is located on the top of the mounting frame and is used to abut against the roller to adjust and maintain the rotation angle of the first swing arm.

2. The powder-liquid dual-chamber bag powder chamber openable bag holding device according to claim 1, characterized in that, The powder filling mechanism includes a fixed frame spaced above the holding strip, and a funnel is provided on the fixed frame for filling the powder into the powder chamber of the powder-liquid double-chamber bag.

3. The powder-liquid dual-chamber bag powder chamber openable bag holding device according to claim 2, characterized in that, The bottom of the support bar is threadedly connected to a support column, and the bottom of the support column is threadedly connected to a mounting bracket.

4. The powder-liquid dual-chamber bag powder chamber openable bag holding device according to claim 1, characterized in that, The bag opening mechanism includes an opening clamping cylinder located at the bottom of the mounting frame. The opening clamping cylinder is connected to an opening clamping support strip located above the mounting frame. The opening clamping cylinder is used to control the up and down movement of the opening clamping support strip. The opening clamping support strip can abut against an adjustable swing arm to control the rotation angle of the first swing arm.

5. The powder-liquid dual-chamber bag powder chamber openable bag holding device according to claim 4, characterized in that, The bag opening mechanism also includes mounting plates on both sides of the clamp. A bag opening servo cylinder is provided on the side of the mounting plate away from the clamp, and a suction cup is provided on the side of the mounting plate closer to the clamp.

6. The powder-liquid dual-chamber bag powder chamber openable bag holding device according to claim 1, characterized in that, The first swing arm is provided with a first positioning post at its top, the second swing arm is provided with a second positioning post at its top, the bottom ends of the first swing arm and the bottom ends of the second swing arm are connected by a spring, and the bottom end of the connecting plate on the side away from the transmission belt is provided with a first limiting post for limiting the rotation range of the first swing arm and a second limiting post for limiting the rotation range of the second swing arm.

7. The powder-liquid dual-chamber bag powder chamber openable bag holding device according to claim 6, characterized in that, Positioning plates are installed on the side of the first and second swing arms that are away from the conveyor belt.

Images