A capping pressure monitoring device

Abstract

The present invention relates to a capping pressing force monitoring device, comprising a cantilever, wherein the lower end of the cantilever is connected to an anti-radial force shaft seat, the lower end of the anti-radial force shaft seat is rotatably connected to a rotating seat, and the lower end of the rotating seat is connected to a pressure head connecting seat; a force sensor is provided on the inner side of the cantilever, and a force transmission component is provided on the inner sides of the anti-radial force shaft seat and the rotating seat; the lower end of the pressure head connecting seat is connected to a quick-release pressure head, the lower end of the quick-release pressure head contacts the upper end of the bottle, and the bottle is provided on a rotating drive seat. The purpose of the present invention is to provide a capping pressing force monitoring device to overcome the existing defects, ensure that the force of the fit between each bottle and the stopper is controlled within an ideal state range, and improve product quality.

Description

Technical Field

[0001] The invention relates to a capping pressing force monitoring device. Background Art

[0002] Bottle sealing methods generally include threaded cap lock seals, inner wall plunger seals, and end face contact flat seals. All of these sealing methods can achieve good sealing performance. However, in the sealing of vials, the bottle's inherent shape is not conducive to thread production and the use of cylindrical stoppers. Therefore, vials currently use end face contact flat seals.

[0003] Vial preparations are widely used in the medical, food and other fields, so their product quality will be strictly supervised and controlled. The sealing performance of the vial is an important factor affecting its product quality; therefore, the sealing process of the vial is an especially important link in its production process. In the end-face contact flat sealing method, the sealing plug is squeezed to make it close to the end face of the bottle mouth, creating a closed environment and achieving the purpose of sealing. However, since the sealing plug is made of rubber, based on the characteristics of the rubber itself, when applying a certain pre-tightening force to the sealing mouth, it should not be too large or too small. Too much pressure accelerates the plastic deformation and aging of the rubber, and insufficient pressure will cause air leakage, which will directly lead to unqualified product quality. Therefore, a capping pressure monitoring device is proposed to address the above problems. Summary of the Invention

[0004] The purpose of the present invention is to overcome the existing defects and provide a capping pressing force monitoring device to ensure that the fitting force between each bottle and the stopper is controlled within an ideal range, thereby improving product quality.

[0005] The technical solution to achieve the above-mentioned purpose is: a capping pressing force monitoring device, including a cantilever, the lower end of the cantilever is connected to an anti-radial force shaft seat, the lower end of the anti-radial force shaft seat is rotatably connected to a rotating seat, and the lower end of the rotating seat is connected to a pressure head connecting seat; a force sensor is arranged on the inner side of the cantilever, and a force transmission component is arranged on the inner sides of the anti-radial force shaft seat and the rotating seat; the lower end of the pressure head connecting seat is connected to a quick-release pressure head, the lower end of the quick-release pressure head contacts the upper end of the bottle, and the bottle is arranged on a rotating drive seat.

[0006] Preferably, the force transmission component includes a force transmission shaft, the upper end of the force transmission shaft is connected to the force-bearing end of the force sensor, the upper end of the force sensor is connected to the cantilever, the lower end of the force transmission shaft extends downward into the rotating seat, the upper end outer wall of the force transmission shaft is connected to the linear bearing, the outer wall of the linear bearing is connected to the inner wall of the anti-radial force shaft seat; the lower end outer wall of the force transmission shaft is connected to the deep groove ball bearing and the double row angular contact bearing, the lower end of the force transmission shaft is connected to the anti-slip baffle, which presses and limits the deep groove ball bearing and the double row angular contact bearing.

[0007] Preferably, the deep groove ball bearing is located above the double row angular contact bearing, and a spacer ring is provided between the deep groove ball bearing and the double row angular contact bearing.

[0008] Preferably, an end face sealing ring is provided between the anti-radial force shaft seat and the rotating seat.

[0009] Preferably, the outer rings of the deep groove ball bearing and the double row angular contact bearing are connected to the inner side wall of the rotating seat.

[0010] Preferably, the cantilever is connected to a power source.

[0011] The present invention has the following beneficial effects: the lower end of the cantilever is connected to the anti-radial force shaft seat, the lower end of the anti-radial force shaft seat is rotatably connected to the rotating seat, and the lower end of the rotating seat is connected to the pressure head connecting seat; a force sensor is provided on the inner side of the cantilever, and a force transmission component is provided on the inner sides of the anti-radial force shaft seat and the rotating seat; the lower end of the pressure head connecting seat is connected to the quick-release pressure head, the lower end of the quick-release pressure head contacts the upper end of the bottle, and the bottle is set on the rotating drive seat. The advantages are high speed and high precision, and the sealing performance is intuitively reflected through the force value data. The structure is simple, reliable, and durable. In addition, the presence of capping action and the tightness of the capping can be judged by the change in force value. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a cross-sectional view of the capping pressing force monitoring device of the present invention;

[0013] Figure 2 Schematic diagram of the process operation of the capping pressing force monitoring device of the present invention;

[0014] Figure 3 This is a force analysis diagram of the bottle mouth when the capping pressing force monitoring device of the present invention is capping.

[0015] In the figure: 1. Cantilever; 2. Force sensor; 3. Force transmission shaft; 4. Anti-radial force shaft seat; 5. Linear bearing; 6. End face sealing ring; 7. Rotary seat; 8. Deep groove ball bearing; 9. Spacer; 10. Double row angular contact bearing; 11. Anti-slip baffle; 12. Press head connecting seat; 13. Quick release press head; 14. Rotary drive seat; 15. Bottle; 16. Capping knife. DETAILED DESCRIPTION

[0016] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figure 1 、 2 As shown, a device for monitoring the pressing force of a capping machine includes a cantilever 1, the lower end of which is connected to an anti-radial force shaft seat 4, the lower end of which is rotatably connected to a rotating seat 7, and the lower end of the rotating seat 7 is connected to a pressure head connecting seat 12. A force sensor 2, a conventional KMRplus device, is disposed on the inner side of the cantilever 1. A force transmission assembly is disposed on the inner sides of the anti-radial force shaft seat 4 and the rotating seat 7. The lower end of the pressure head connecting seat 12 is connected to a quick-release pressure head 13, the lower end of which contacts the upper end of a bottle 15, which is disposed on a rotating drive seat 14. An end face sealing ring 6 is disposed between the anti-radial force shaft seat 4 and the rotating seat 7. The cantilever 1 is connected to a power source. The force sensor 2 is electrically connected to a numerical display, which displays the force value data of the force sensor 2.

[0019] like Figure 1 As shown, the end of cantilever 1, driven by a power source, serves as the active component, driving the device up and down. This compresses the rubber plug and provides the necessary conditions for sealing and capping. The tail of force sensor 2 is fixedly connected to the head of cantilever 1. The force transmission shaft 3 is fixedly connected to the lower, force-bearing end face of force sensor 2. Force transmission shaft 3 is externally mounted with a linear bearing 5, which is fixedly connected to a radial force protection seat 4, which is in turn fixedly connected to cantilever 1. This constrains the movement of force transmission shaft 3, ensuring that force sensor 2 is not affected by bending moments.

[0020] like Figure 1As shown, the force transmission assembly includes a force transmission shaft 3. The upper end of the force transmission shaft 3 is connected to the force-bearing end of the force sensor 2, the upper end of the force sensor 2 is connected to the cantilever 1, and the lower end of the force transmission shaft 3 extends downward into the rotating seat 7. The outer wall of the upper end of the force transmission shaft 3 is connected to the linear bearing 5, and the outer wall of the linear bearing 5 is connected to the inner wall of the radial force protection shaft seat 4. The outer wall of the lower end of the force transmission shaft 3 is connected to the deep groove ball bearing 8 and the double row angular contact bearing 10. The lower end of the force transmission shaft 3 is connected to the anti-slip baffle 11, which compresses and restrains the deep groove ball bearing 8 and the double row angular contact bearing 10. The deep groove ball bearing 8 is located above the double row angular contact bearing 10, and a spacer ring 9 is provided between the deep groove ball bearing 8 and the double row angular contact bearing 10. The outer rings of the deep groove ball bearing 8 and the double row angular contact bearing 10 are connected to the inner wall of the rotating seat 7.

[0021] like Figure 1 As shown, a deep groove ball bearing 8 and a double-row angular contact bearing 10 are installed at the lower end of the force transmission shaft 3. These bearings are mounted inside the rotating seat 7, and are restrained by their outer rings via a spacer 9. Bolts then lock an anti-slip baffle 11 to the lower end of the force transmission shaft 3, pressing against the inner ring of the double-row angular contact bearing 10. This prevents the two bearings from separating from the force transmission shaft 3 and allows the rotating seat 7 to rotate around it. This reduces the effect of torque on the force sensor 2 and satisfies the rotation requirements during capping.

[0022] like Figure 1 As shown, the rotating seat 7 and the radial force protection shaft seat 4 are equipped with end face sealing rings 6. The lower end of the rotating seat 7 is fixedly connected to the pressure head connecting seat 12, and the quick-release pressure head 13 is fixedly connected to the lower end of the pressure head connecting seat 12. A coaxial rotary drive seat 14 is located below to drive the bottle 15 to rotate. Through this installation method, during the downward pressing process, when the quick-release pressure head 13 contacts the aluminum cap on the bottle 15, the force applied to the rubber stopper is transmitted through the aluminum cap to the quick-release pressure head 13 and ultimately to the force sensor 2 (the quick-release pressure head 13 transmits the force to the pressure head connecting seat 12, the pressure head connecting seat 12 transmits the force to the double-row angular contact bearing 10, the double-row angular contact bearing 10 transmits the force to the spacer 9, the spacer 9 transmits the force to the deep groove ball bearing 8, the deep groove ball bearing 8 transmits the force transmission shaft 3, and finally to the force sensor 2). The sensor provides real-time numerical feedback of the force applied, thereby monitoring and identifying the pressure applied to the rubber stopper during the capping process. This allows for better monitoring of product quality and improved production quality.

[0023] Specifically, such as Figure 2 、 3As shown in the figure, force analysis shows that installing the force sensor 2 above the bottle 15 is significantly superior to installing it below. This is because during capping, the capping blade 16 exerts an upward force (F3) on the bottle, and this force varies. When the capping blade 16 is no longer in contact with the bottle 15, the force (F3) dissipates, but its direction remains upward. During capping, the value of force sensor 2 equals the sum of the forces (F2) and (F3). Due to this interaction, the force acting on the stopper equals the value of force sensor 2. Therefore, the changing trend of the sensor 2 value can be used to determine whether capping is occurring and whether the capping tightness is appropriate.

[0024] Note: mg is the weight exerted on the rubber stopper; F1 is the pressing force; F2 is the supporting force; F3 is the extrusion force of the capping knife.

[0025] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A capping pressing force monitoring device, characterized in that: The invention comprises a cantilever (1), wherein the lower end of the cantilever (1) is connected to an anti-radial force shaft seat (4), the lower end of the anti-radial force shaft seat (4) is rotatably connected to a rotating seat (7), and the lower end of the rotating seat (7) is connected to a pressure head connecting seat (12); a force sensor (2) is arranged on the inner side of the cantilever (1), and a force transmission component is arranged on the inner sides of the anti-radial force shaft seat (4) and the rotating seat (7); the lower end of the pressure head connecting seat (12) is connected to a quick-release pressure head (13), the lower end of the quick-release pressure head (13) contacts the upper end of a bottle (15), and the bottle (15) is arranged on a rotating drive seat (14); The force transmission assembly includes a force transmission shaft (3), the upper end of the force transmission shaft (3) is connected to the force-receiving end of the force sensor (2), the upper end of the force sensor (2) is connected to the cantilever (1), the lower end of the force transmission shaft (3) extends downward into the rotating seat (7), the outer wall of the upper end of the force transmission shaft (3) is connected to the linear bearing (5), and the outer wall of the linear bearing (5) is connected to the inner wall of the anti-radial force shaft seat (4); the outer wall of the lower end of the force transmission shaft (3) is connected to the deep groove ball bearing (8) and the double row angular contact bearing (10), and the lower end of the force transmission shaft (3) is connected to the anti-slip baffle (11) to press and limit the deep groove ball bearing (8) and the double row angular contact bearing (10).

2. The capping pressing force monitoring device according to claim 1, characterized in that: The deep groove ball bearing (8) is located above the double row angular contact bearing (10), and a spacer ring (9) is provided between the deep groove ball bearing (8) and the double row angular contact bearing (10).

3. The capping pressing force monitoring device according to claim 1, characterized in that: An end face sealing ring (6) is provided between the anti-radial force shaft seat (4) and the rotating seat (7).

4. The capping pressing force monitoring device according to claim 1, characterized in that: The outer rings of the deep groove ball bearing (8) and the double row angular contact bearing (10) are connected to the inner side wall of the rotating seat (7).

5. The capping pressing force monitoring device according to claim 1, characterized in that: The cantilever (1) is connected to a power source.

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