A hose filling equipment filling pump piston rod stroke precision control device

Abstract

The utility model discloses a kind of filling pump piston rod stroke precision control devices of hose filling equipment, including piston rod, driving arm, connecting rod, threaded sleeve, screw rod and servo motor, piston rod, driving arm, connecting rod, threaded sleeve are sequentially rotationally connected, screw rod is inserted into threaded sleeve rotation, servo motor is connected with screw rod and controls its rotation;Piston rod front end is equipped with piston head, piston head slides in filling pump, driving arm is rotationally connected with fixed shaft.The utility model has the advantages that screw rod is inserted into threaded sleeve screw rotation, can provide enough long stroke while ensuring operation precision, make the propulsion displacement and push curve of servo motor can be carried out parameter setting, the degree of pushing of piston rod can be accurately changed, the precision of control filling amount is controlled, precise adaptation different hose is filled;And the pushing curve of piston rod is adjusted to the material body of different viscosity to be adjusted accordingly, better filling is realized, and productivity is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of a precise control device for the piston rod stroke of a filling pump in a hose filling equipment, specifically a precise control device for the piston rod stroke of a filling pump in a hose filling equipment. Background Technology

[0002] The filling process for various soft-tube packaged products such as facial cleansers, ointments, and food sauces includes automatic tube feeding, dust removal, color mark alignment, barcode detection, material filling, tail heating, tail clamping, tail trimming, and finished product discharge. Traditionally, at the material filling station, a motor drives a mechanical cam to drive a piston rod. The piston head of the piston rod moves within the filling pump, continuously pushing the material from the hopper forward. The material enters the syringe and then falls from its bottom into the soft tube, completing the filling. Because each type of soft tube requires a different weight, and the cam's rotation stroke is relatively short, it's difficult to precisely adjust the piston rod's pushing degree, making it difficult to control the filling volume accuracy. This results in an inability to accurately adapt to different soft tubes for filling. Furthermore, the cam's rotation cannot be parameterized to set a specific operating curve, making it impossible to adjust the piston rod's pushing curve accordingly for materials of different viscosities to achieve better filling. Therefore, there are significant production limitations. Utility Model Content

[0003] The purpose of this invention is to provide a precise control device for the piston rod stroke of the filling pump in a hose filling equipment, so as to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] This utility model discloses a precise control device for the piston rod stroke of a filling pump in a hose filling equipment, comprising a piston rod, a drive arm, a connecting rod, a threaded sleeve, a lead screw, and a servo motor. The piston rod, drive arm, connecting rod, and threaded sleeve are rotatably connected in sequence. The lead screw is inserted into the threaded sleeve and rotates. The servo motor is connected to the lead screw and controls its rotation.

[0006] The piston rod has a piston head at its front end, which slides in the filling pump, and the drive arm is rotatably connected to the fixed shaft.

[0007] As an improvement, a vertical plate is also included, the fixed shaft is fixed to the vertical plate, the vertical plate is provided with a fixed motor base, the servo motor is fixed to the motor base, the motor base is provided with a fixed guide rail, the guide rail is provided with a slider, the slider is fixedly connected to a threaded sleeve, and the lead screw is rotatably connected to the motor base through a bearing.

[0008] As an improvement, the servo motor and the lead screw are fixedly connected by a coupling.

[0009] As an improvement, the piston head is provided with a sealing ring that slides along the inner wall of the filling pump.

[0010] The advantages of this invention compared to existing technologies are as follows: the screw is inserted into the threaded sleeve and rotates, providing a sufficiently long stroke while ensuring operational accuracy. This allows for parameter setting of the servo motor's propulsion displacement and push curve, enabling precise changes in the piston rod's pushing degree and control of the filling volume. This allows for precise adaptation to different hoses for filling. Furthermore, the piston rod's pushing curve can be adjusted accordingly for materials of different viscosities to achieve better filling and improve productivity. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings listed below are only some structural schematic diagrams of this utility model, and not all of them.

[0012] Figure 1 This is a structural schematic diagram of a precise control device for the piston rod stroke of a filling pump in a flexible tube filling equipment according to this utility model.

[0013] Figure 2 This is a front view of a precise control device for the piston rod stroke of a filling pump in a hose filling equipment according to this utility model. Figure 1 .

[0014] Figure 3 This is a front view of a precise control device for the piston rod stroke of a filling pump in a hose filling equipment according to this utility model. Figure 2 .

[0015] Figure 4 This is a schematic diagram of the motor base of a precise control device for the piston rod stroke of a filling pump in a flexible tube filling equipment according to this utility model.

[0016] Figure 5 This is a schematic diagram of the threaded sleeve of a precise control device for the piston rod stroke of a filling pump in a flexible tube filling equipment according to this utility model.

[0017] Figure 6 This is a schematic diagram of the piston head of a filling pump piston rod stroke precision control device for a hose filling equipment according to this utility model.

[0018] Figure 7 This is a diagram showing the connection of a precise control device for the piston rod stroke of a filling pump in a flexible tube filling equipment.

[0019] Figure label:

[0020] 1. Piston rod; 2. Drive arm; 3. Connecting rod; 4. Threaded sleeve; 5. Lead screw; 6. Servo motor; 7. Piston head; 8. Filling pump; 9. Fixed shaft; 10. Vertical plate; 11. Motor base; 12. Guide rail; 13. Slider; 14. Bearing; 15. Coupling; 16. Sealing ring; 17. Hopper; 18. Needle tube; 19. Hose. Detailed Implementation

[0021] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of the embodiments of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model 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 utility model.

[0023] Furthermore, the terms "first," "second," and "third" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance. The use of terms such as "horizontal," "vertical," and "suspended" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be perfectly horizontal, but can be slightly tilted.

[0024] In the description of the embodiments of this utility model, the terms "multiple" or "several" refer to at least two.

[0025] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] This embodiment is combined with the appendix Figures 1 to 7This paper provides a detailed description of a precise control device for the piston rod stroke of a filling pump in a hose filling machine.

[0027] This embodiment discloses a precise control device for the piston rod stroke of a filling pump in a hose filling equipment. The device includes a piston rod 1, a drive arm 2, a connecting rod 3, a threaded sleeve 4, a lead screw 5, and a servo motor 6. The piston rod 1, drive arm 2, connecting rod 3, and threaded sleeve 4 are sequentially rotatably connected. The lead screw 5 is inserted into the threaded sleeve 4 and rotates. The servo motor 6 is connected to the lead screw 5 and controls its rotation. The servo motor 6 is electrically connected to the control system of the hose filling equipment. Figure 5 The threaded sleeve 4 has two rotating connection positions, which can drive two sets of components: connecting rod 3, drive arm 2, piston rod 1, and filling pump 8. The two filling pumps 8 are installed in opposite directions.

[0028] The piston rod 1 has a piston head 7 at its front end, which slides in the filling pump 8, and the drive arm 2 is rotatably connected to the fixed shaft 9.

[0029] It also includes a vertical plate 10, to which the fixed shaft 9 is fixed. The vertical plate 10 has a fixed motor base 11, to which the servo motor 6 is fixed. The motor base 11 has a fixed guide rail 12, to which a slider 13 is provided. The slider 13 is fixedly connected to the threaded sleeve 4, and the lead screw 5 is rotatably connected to the motor base 11 via a bearing 14. The slider 13 makes the threaded sleeve 4 run more stably.

[0030] The servo motor 6 and the lead screw 5 are fixedly connected by a coupling 15.

[0031] The piston head 7 is equipped with a sealing ring 16, which slides along the inner wall of the filling pump 8 to improve the sealing effect.

[0032] In practical implementation, this control device is installed on the hose filling equipment, such as... Figure 7 The filling pump 8 is connected to the hopper 17 and the syringe 18. The filling station is reached when the tubing 19 moves from the belt conveyor to the bottom of the syringe 18. The control system of the tubing filling equipment is designed with preset values. The servo motor 6 automatically matches the tubing weight and material viscosity, automatically calculating the pushing displacement and push curve to precisely adapt to different tubing 19 and material types. The lead screw 5 rotates through the threaded sleeve 4, providing a sufficiently long stroke while ensuring operational accuracy. This allows for parameter setting of the servo motor 6's pushing displacement and push curve, precisely changing the piston rod's pushing degree to control the filling volume accuracy, achieving precise adaptation to different tubing types; and adjusting the piston rod's pushing curve accordingly for materials of different viscosities to achieve better filling.

[0033] Servo motor 6 controls lead screw 5 to rotate back and forth, threaded sleeve 4 moves up and down along lead screw 5, connecting rod 3 pulls drive arm 2 to rotate back and forth to push piston rod 1, piston head 7 makes piston movement in filling pump 8, continuously first drawing material from hopper 17 into filling pump 8, then pushing material into needle tube 18, material falls from the bottom of needle tube 18 into hose 19 to complete filling, and then hose 19 moves to the next station.

[0034] The present invention and its embodiments have been described above. This description is not restrictive, and the actual scope of protection is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this invention should be included within the scope of protection of this invention. Therefore, the scope of protection of this invention should be determined by the scope of the claims.

Claims

1. A precise control device for the piston rod stroke of a filling pump in a flexible tube filling equipment, characterized in that, It includes a piston rod (1), a drive arm (2), a connecting rod (3), a threaded sleeve (4), a lead screw (5), and a servo motor (6). The piston rod (1), drive arm (2), connecting rod (3), and threaded sleeve (4) are rotatably connected in sequence. The lead screw (5) is inserted into the threaded sleeve (4) and rotates. The servo motor (6) is connected to the lead screw (5) and controls its rotation. The piston rod (1) has a piston head (7) at its front end. The piston head (7) slides in the filling pump (8). The drive arm (2) is rotatably connected to the fixed shaft (9).

2. The precise control device for the piston rod stroke of the filling pump in a hose filling equipment according to claim 1, characterized in that, It also includes a vertical plate (10), the fixed shaft (9) is fixed to the vertical plate (10), the vertical plate (10) is provided with a fixed motor seat (11), the servo motor (6) is fixed to the motor seat (11), the motor seat (11) is provided with a fixed guide rail (12), the guide rail (12) is provided with a slider (13), the slider (13) is fixedly connected to the threaded sleeve (4), and the lead screw (5) is rotatably connected to the motor seat (11) through a bearing (14).

3. The precise control device for the piston rod stroke of the filling pump in a hose filling equipment according to claim 1, characterized in that, The servo motor (6) and the lead screw (5) are fixedly connected by a coupling (15).

4. The precise control device for the piston rod stroke of the filling pump in a hose filling equipment according to claim 1, characterized in that, The piston head (7) is provided with a sealing ring (16), which slides along the inner wall of the filling pump (8).

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