Bag pre-opening device of double-chamber bag powder racking machine

Abstract

The utility model relates to the technical field of bag pre-opening devices, in particular to a double-chamber bag powder racking machine bag pre-opening device which comprises a suction cup assembly, a conveying belt, a clamp used for installing a double-chamber bag and a lifting guide rail. A clamp is mounted on one side of the conveyor belt; a lifting guide rail is arranged below the conveyor belt; the clamp comprises a connecting plate, a first swing arm, a second swing arm and a roller; the connecting plate is connected with the conveying belt, a first swing arm and a second swing arm are hinged to the side, away from the conveying belt, of the connecting plate, the first swing arm and the second swing arm can conduct transmission, the first swing arm and the second swing arm are correspondingly provided with a first positioning column and a second positioning column which are used in cooperation with positioning holes in the double-chamber bag, and rolling wheels are arranged at the bottom of the first swing arm; the roller is matched with the lifting guide rail to adjust the rotating angles of the first swing arm and the second swing arm.

Description

Technical Field

[0001] This utility model relates to the technical field of pre-opening bag devices, specifically to a pre-opening bag device for a double-chamber bag powder dispensing machine. Background Technology

[0002] Currently, the bag opening device of the dual-chamber powder filling machine consists of a suction cup, a bag opening cylinder, and a clamping mechanism to complete the entire bag opening action. First, a set of pre-trimmed product bags is conveyed to the bag opening station by a circular conveyor belt. Then, under the action of the cylinder, the vacuum 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 bag opening cylinder continues to perform the action to open the bag. Then, the powder chamber is filled with powder through the filling head. After the powder filling is completed, the bag opening cylinder is activated, and the suction cup closes the opened powder chamber. Finally, the bag opening cylinder 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 opens the powder chamber of the product bag after the waste edges have been trimmed. A series of sequential actions are then performed to complete the powder filling process. 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 bag-opening cycle and improve production efficiency to address the current problems of cumbersome, difficult, and time-consuming bag-opening 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 pre-opening device for a double-chamber bag powder dispensing machine, so as to solve the problems that the bag opening action of the existing double-chamber bag powder dispensing machine is cumbersome, difficult and time-consuming, and the clamps are difficult to keep in the open state for a long time.

[0005] A pre-opening device for a double-chamber bag powder dispensing machine includes a suction cup assembly, a conveyor belt, a clamp for installing double-chamber bags, and a lifting guide rail;

[0006] A clamp is installed on one side of the conveyor belt; a lifting guide rail is provided below the conveyor belt; the clamp includes a connecting plate, a first swing arm, a second swing arm, and rollers; 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 belt. The first swing arm and the second swing arm can transmit power. 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 double-chamber bag. Rollers are provided at the bottom of the first swing arm; the rollers are used to cooperate with the lifting guide rail to adjust the rotation angle of the first swing arm and the second swing arm; the suction cup assembly is used to cooperate with the clamp to open the powder chamber opening of the powder liquid double-chamber bag.

[0007] Furthermore, lifting cylinders are connected to both ends of the bottom of the lifting guide rail.

[0008] Furthermore, a guide ramp is provided at one end of the lifting guide rail.

[0009] Furthermore, the bottom ends of the first swing arm and the second swing arm are connected by a spring, and a first limit post and a second limit post are provided on the side of the bottom of the connecting plate away from the conveyor belt. The first limit post and the second limit post are used to limit the rotation range of the first swing arm and the second swing arm respectively.

[0010] Furthermore, the bottom end of the first swing arm is connected to a roller via a connector, which is V-shaped.

[0011] Furthermore, the suction cup assembly includes a first mounting plate, with the first mounting plate spaced apart on the side of the conveyor belt away from the clamp, and a plurality of first cylinders on the side of the first mounting plate away from the conveyor belt. The first cylinders are used to control the first mounting plate to move toward or away from the conveyor belt. A first suction cup connector is provided on the first mounting plate, and a first suction cup is provided at the end of the first suction cup connector that is close to the conveyor belt.

[0012] Furthermore, the suction cup assembly includes a second mounting plate, with the second mounting plate spaced apart on the side of the clamp away from the conveyor belt, and a plurality of second cylinders on the side of the second mounting plate away from the conveyor belt. The second cylinders are used to control the second mounting plate to move toward or away from the conveyor belt. A second suction cup connector is provided on the second mounting plate, and a second suction cup is provided at the end of the second suction cup connector that is close to the conveyor belt.

[0013] Beneficial effects: The height control of the lifting guide rail can be combined with the rollers to adjust the rotation 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 gears, thereby adjusting the distance between the first and second positioning posts corresponding to the first and second swing arms. In the existing technology, 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 accordingly 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 combined use of the lifting guide rail, suction cup assembly and rollers can easily and conveniently open the powder-liquid double-chamber bag, and the opening of the top opening of the powder-liquid double-chamber bag can be maintained by the cooperation of the lifting guide rail and the clamp. The whole process is simple, convenient and quick. Attached Figure Description

[0014] 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.

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the clamp structure in an embodiment of the present utility model.

[0017] In the diagram: 1. Lifting guide rail; 2. Lifting cylinder; 3. Conveyor belt; 4. Clamp; 401. First swing arm; 4011. First positioning post; 402. Second swing arm; 4021. Transmission gear; 4022. Second positioning post; 403. Spring; 404. Connecting piece; 405. Roller; 406. Connecting plate; 4061. First limit post; 4062. Second limit post; 501. First mounting plate; 502. Second mounting plate; 601. First cylinder; 602. Second cylinder. Detailed Implementation

[0018] 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.

[0019] 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.

[0020] like Figure 1 and Figure 2 The pre-opening device of a double-chamber bag powder dispensing machine shown includes a suction cup assembly, a conveyor belt 3, a clamp 4 for installing double-chamber bags, and a lifting guide rail 1;

[0021] Several clamps 4 are installed on one side of the conveyor belt 3; a lifting guide rail 1 is provided below the conveyor belt 3; the clamps 4 include a connecting plate 406, a first swing arm 401, a second swing arm 402, and a roller 405; the connecting plate 406 is connected to the conveyor belt 3, and the first swing arm 401 and the second swing arm 402 are hinged to the side of the connecting plate 406 away from the conveyor belt 3. The first swing arm 401 and the second swing arm 402 are provided with transmission teeth 4021 on adjacent sides. The transmission gear 4021 on 402 meshes, and the first swing arm 401 and the second swing arm 402 are driven by the transmission gear 4021. The first swing arm 401 and the second swing arm 402 are respectively provided with a first positioning post 4011 and a second positioning post 4022 that cooperate with the positioning holes on the double chamber bag. The bottom of the first swing arm 401 is provided with a roller 405. The roller 405 is used to cooperate with the lifting guide rail 1 to adjust the rotation angle of the first swing arm 401 and the second swing arm 402.

[0022] In this embodiment, the height control of the lifting guide rail 1 can be coordinated with the roller 405 to adjust the rotation angle of the first swing arm 401. The first swing arm 401 controls the rotation angle of the second swing arm 402 through the meshing action between the transmission teeth 4021, thereby adjusting the distance between the first positioning post 4011 and the second positioning post 4022 correspondingly provided on the first swing arm 401 and the second swing arm 402. Specifically, when the bottom ends of the first swing arm 401 and the second swing arm 402 are close to each other, the top ends of the first swing arm 401 and the second swing arm 402 are far apart. When the bottom ends of the first swing arm 401 and the second swing arm 402 are far apart, the distance between the first swing arm 401 and the second swing arm 402 is... The top ends of the swing arms 402 are close to each other; 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 4011 or the second positioning post 4022. By adjusting the distance between the first positioning post 4011 and the second positioning post 4022, the position of the two sides of the powder liquid double chamber bag can be adjusted accordingly, thereby assisting in controlling the opening or closing of the top opening of the powder liquid double chamber bag. The cooperation of the lifting guide rail 1, the suction cup assembly and the roller 405 can easily and conveniently open the powder liquid double chamber bag, and the opening of the top opening of the powder liquid double chamber bag is maintained by the cooperation of the lifting guide rail 1 and the clamp 4. The whole process is simple, convenient and quick.

[0023] Lifting cylinders 2 are connected to both ends of the bottom of the lifting guide rail 1.

[0024] In this embodiment, the lifting cylinder 2 allows for convenient adjustment of the height position of the lifting guide rail 1.

[0025] One end of the lifting guide rail 1 is equipped with a guide ramp.

[0026] In this embodiment, the guide ramp is provided to facilitate the movement of the roller 405 from one end of the lifting guide rail 1 to the top of the lifting guide rail.

[0027] A spring 403 is provided between the bottom end of the first swing arm 401 and the bottom end of the second swing arm 402. A first limiting post 4061 and a second limiting post 4062 are provided on the side of the bottom of the connecting plate 406 away from the conveyor belt 3. Under the action of the spring 403, the first swing arm 401 and the second swing arm 402 will rotate towards each other at their bottom ends. The first limiting post 4061 and the second limiting post 4062 are used to limit the rotation range of the first swing arm 401 and the second swing arm 402 respectively.

[0028] In this embodiment, the spring 403 enables the clamp 4 to return to its original state after the lifting guide rail 1 disengages from the roller 405. The first limiting post 4061 and the second limiting post 4062 are used to limit the rotation angle of the first swing arm 401 and the second swing arm 402.

[0029] The bottom end of the first swing arm 401 is connected to a roller 405 via a connector 404. The connector 404 is V-shaped, and the bottom end of the connector 404 is lower than the bottom end of the first swing arm 401. The bottom end of the connector 404 extends away from the second swing arm 402, and the bottom end of the connector 404 is connected to the roller 405.

[0030] In this embodiment, the distance from the bottom end of the connector 404 to the rotation center axis of the first swing arm 401 is greater than the distance from the bottom end of the first swing arm 401 to the rotation center axis of the first swing arm 401, which facilitates the rotation of the first swing arm 401. At the same time, it facilitates the roller 405 provided at the bottom end of the connector 404 to better cooperate with the guide ramp for rotation.

[0031] The suction cup assembly includes a first mounting plate 501. The first mounting plate 501 is spaced apart on the side of the conveyor belt 3 away from the clamp 4. A plurality of first cylinders 601 are provided on the side of the first mounting plate 501 away from the conveyor belt 3. The first cylinders 601 are used to control the first mounting plate 501 to move closer to or away from the conveyor belt 3. A first suction cup connector is provided on the first mounting plate 501. A first suction cup is provided at the end of the first suction cup connector that is close to the conveyor belt 3.

[0032] In this embodiment, the first cylinder 601 controls the first mounting plate 501 to move closer to or away from the conveyor belt 3, thereby driving the first suction cup to move closer to or away from the conveyor belt 3. The vacuum device connected to the first suction cup connector controls the suction cup to draw air. When the first suction cup approaches the powder-liquid double-chamber bag mounted on the clamp 4, the vacuum device is activated, and the first suction cup approaches and sucks up one side of the powder-liquid double-chamber bag.

[0033] The suction cup assembly includes a second mounting plate 502. The clamp 4 is spaced apart from the side of the conveyor belt 3 by the second mounting plate 502. A plurality of second cylinders 602 are provided on the side of the second mounting plate 502 away from the conveyor belt 3. The second cylinders 602 are used to control the second mounting plate 502 to move closer to or away from the conveyor belt 3. A second suction cup connector is provided on the second mounting plate 502. A second suction cup is provided at the end of the second suction cup connector that is closer to the conveyor belt 3.

[0034] In this embodiment, the second cylinder 602 controls the second mounting plate 502 to move closer to or away from the conveyor belt 3, thereby driving the second suction cup to move closer to or away from the conveyor belt 3. The suction cup is controlled to draw air through the vacuuming device connected to the second suction cup connector. When the second suction cup approaches the powder liquid double chamber bag mounted on the clamp 4, the vacuuming device is activated, and the second suction cup approaches and sucks the other side of the powder liquid double chamber bag.

[0035] Working principle: After opening, the powder-liquid double-chamber bag is installed on clamp 4. The conveyor belt 3 drives the clamp 4 to move, and the rollers 405 on the clamp 4 move along the guide ramp, causing the first swing arm 401 to rotate. Then, the first positioning post 4011 and the second positioning post 4022 approach each other, the powder-liquid double-chamber bag bends, and several clamps 4 that abut against the lifting guide rail 1 are simultaneously in the open state. Then, the lifting guide rail 1 is moved downward by the lifting cylinder 2, so that several clamps 4 return to their original state, and the powder-liquid double-chamber bag returns to the flat state. The above process is used to knead the double-chamber bag to a certain extent, which facilitates the subsequent opening. The first cylinder 601 and the second cylinder 602 push the first mounting plate 501 and the second mounting plate 502 closer to the powder-liquid double-chamber bag, and the first suction cup and the second suction cup hold the two sides of the powder-liquid double-chamber bag. Subsequently, while the lifting cylinder 2 pushes the lifting guide rail 1 upward, the first cylinder 601 and the second cylinder 602 move the first mounting plate 501 and the second mounting plate 502 away from the powder-liquid double-chamber bag. Through the above process, the top opening of the powder-liquid double-chamber bag is opened. Then, the height of the lifting guide rail 1 remains unchanged, and the first suction cup and the second suction cup move away from the powder-liquid double-chamber bag. By keeping the height of the lifting guide rail 1 unchanged, the top opening of the powder-liquid double-chamber bag is kept in an open state. Then, the conveyor belt 3 drives several clamps 4 to move along the top of the lifting guide rail 1. During the movement of the clamps 4, the opening of the powder chamber of the powder-liquid double-chamber bag is always in an open state. That is, in the device provided in this embodiment, the lifting guide rail 1 acts on multiple clamps, which can keep the top opening of the powder chamber of the powder-liquid double-chamber bag in an open state in both stationary and moving states.

[0036] 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 pre-opening device for a double-chamber bag powder dispensing machine, characterized in that, Includes suction cup assembly, conveyor belt, clamps for mounting double-chamber bags, and lifting guide rail; Several clamps are installed on one side of the conveyor belt; a lifting guide rail is provided below the conveyor belt; the clamps include a connecting plate, a first swing arm, a second swing arm, and rollers; 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 belt. The first swing arm and the second swing arm can transmit power. 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 double-chamber bag. Rollers are provided at the bottom of the first swing arm; the rollers are used to cooperate with the lifting guide rail to adjust the rotation angle of the first swing arm and the second swing arm; the suction cup assembly is used to cooperate with the clamps to open the powder chamber opening of the powder liquid double-chamber bag.

2. The pre-opening device for a double-chamber bag powder dispensing machine according to claim 1, characterized in that, The bottom ends of the lifting guide rail are respectively connected to lifting cylinders.

3. The pre-opening device for a double-chamber bag powder dispensing machine according to claim 2, characterized in that, One end of the lifting guide rail is equipped with a guide ramp.

4. The pre-opening device for a double-chamber bag powder dispensing machine according to claim 1, characterized in that, The bottom ends of the first swing arm and the second swing arm are connected by a spring. A first limit post and a second limit post are provided on the bottom side of the connecting plate away from the conveyor belt. The first limit post and the second limit post are used to limit the rotation range of the first swing arm and the second swing arm respectively.

5. The pre-opening device for a double-chamber bag powder dispensing machine according to claim 4, characterized in that, The bottom end of the first swing arm is connected to a roller via a connector, which is V-shaped.

6. The pre-opening device for a double-chamber bag powder dispensing machine according to claim 2, characterized in that, The suction cup assembly includes a first mounting plate, with the first mounting plate spaced apart on the side of the conveyor belt away from the clamp, and a plurality of first cylinders on the side of the first mounting plate away from the conveyor belt. The first cylinders are used to control the first mounting plate to move toward or away from the conveyor belt. A first suction cup connector is provided on the first mounting plate, and a first suction cup is provided at the end of the first suction cup connector that is close to the conveyor belt.

7. The pre-opening device for a double-chamber bag powder dispensing machine according to claim 6, characterized in that, The suction cup assembly includes a second mounting plate. The second mounting plate is spaced apart on the side of the clamp away from the conveyor belt. A plurality of second cylinders are provided on the side of the second mounting plate away from the conveyor belt. The second cylinders are used to control the second mounting plate to move towards or away from the conveyor belt. A second suction cup connector is provided on the second mounting plate. A second suction cup is provided at the end of the second suction cup connector that is close to the conveyor belt.

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