Automatic feeding and buckling mechanism for multi-station mixing equipment

Abstract

The utility model relates to an automatic feeding buckle mechanism for multi-station mixing equipment, which comprises a holding assembly and a pressing rod assembly, the pressing rod assembly comprises a pressing block, two self-resetting buckles, two springs, two jackscrews and two rotating shafts, the middle of the lower part of the pressing block is provided with an accommodating cavity for accommodating a push rod of a needle tube, and the pressing block is provided with a clamping assembly. The two self-resetting buckles are symmetrically arranged on the two sides of the containing cavity, each self-resetting buckle comprises a connecting part, a swing arm part and a clamping jaw part which are integrally connected from top to bottom, the connecting parts are rotationally connected to the pressing block through rotating shafts, the two jackscrews are spirally fixed to the opposite side walls of the containing cavity, the outer ends of the springs abut against the jackscrews, and the outer ends of the springs abut against the clamping jaw parts. The upper portion of the push rod is clamped in the containing cavity through the clamping jaw part, and the portion, on the upper portion of the containing cavity, of the pressing block is provided with a first sensor used for detecting the upper end of the push rod. The mechanism can automatically complete matching connection of the pressing rod assembly and the upper portion of the push rod, automatically judge the descending end point of the pressing block, prevent material liquid from being extruded out of the needle tube and avoid cleaning troubles.

Description

Technical Field

[0001] This utility model relates to the field of filling equipment technology, and in particular to an automatic feeding buckle mechanism for multi-station mixing equipment. Background Technology

[0002] With the development of the medical aesthetics industry, single, universal skincare products can no longer meet the needs of the population, and personalized, customized products have become the trend. Current technologies mostly rely on manual formulation to prepare products for different needs, which requires a high level of expertise and is not ideal in terms of efficiency and accuracy.

[0003] Chinese patent CN220078597U discloses a multi-station intelligent mixing device, including a machine body, an indexing and rotating device located in the lower part of the machine body, and a filling assembly located in the upper part of the machine body. The indexing and rotating device includes an indexing plate and a rotary drive device that drives the indexing plate to rotate around a vertical axis. The filling assembly includes filling units evenly distributed in a ring around the periphery of the machine body around the vertical axis. The indexing plate is provided with several positioning grooves, which carry the receiving bottle to move below the outlet of the filling needle. The device does not describe the material changing method for the filling units. Because the depth of the push rod of the filling needle changes before and after filling, the position of the pressing block that actuates the push rod also changes. However, the filling volume of the filling needle may be different, so the initial position of the push rod cannot be guaranteed to remain constant. Therefore, the initial position of the pressing block and the push rod cannot be fixed. If the position of the pressing block is too low, the guide post push rod will be forced to descend, which will cause the liquid to be squeezed out prematurely and wasted, and also increase the trouble of cleaning the equipment.

[0004] Therefore, it is necessary to improve the equipment structure to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic feeding buckle mechanism for a multi-station mixing equipment, which can automatically complete the upper connection between the pressure rod assembly and the push rod, automatically determine the downward endpoint of the pressure block, and prevent the liquid from being squeezed out of the syringe, thus avoiding cleaning trouble.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: an automatic feeding latching mechanism for a multi-station mixing equipment, comprising a holding assembly and a pressure rod assembly located above the holding assembly. The pressure rod assembly includes a pressure block, two self-resetting latches, two springs, two set screws, and two rotating shafts. The lower part of the pressure block has a receiving cavity for a push rod of a needle tube in the middle. The two self-resetting latches are symmetrically arranged on both sides of the receiving cavity. Each self-resetting latch includes a connecting part, a swing arm part, and a claw part integrally connected from top to bottom. The connecting part is rotatably connected to the pressure block through the rotating shafts. The two set screws are helically fixed to the opposite side walls of the receiving cavity. The outer end of the spring abuts against the set screw, and the inner end abuts against the outer side of the swing arm part. The claw part holds the upper part of the push rod in the receiving cavity. The pressure block has a first sensor on the upper part of the receiving cavity for detecting the upper end of the push rod.

[0007] Specifically, the connecting part and the claw part protrude to the same side of the swing arm part, and the rotating shaft is located in the inner part of the connecting part.

[0008] Furthermore, the inner side of the connecting part is provided with an anti-rotation protrusion, and the pressure block is provided with an anti-rotation platform at the upper part of the receiving cavity to abut against the anti-rotation protrusion.

[0009] Specifically, the outer side of the swing arm is provided with a spring groove, and the inner end of the spring is surrounded by the spring groove.

[0010] Specifically, the lower edge of the claw portion is provided with an inclined surface for contacting the upper part of the push rod.

[0011] Specifically, the holding assembly includes a contour fixing block, an arc-shaped spring piece disposed on the outside of the contour fixing block, and a second sensor disposed on the inside of the contour fixing block. The tube body is embedded in the contour fixing block and held and fixed by the arc-shaped spring piece. The second sensor detects whether the tube body is in place.

[0012] The beneficial effects of adopting the above technical solution are:

[0013] This mechanism can automatically connect the upper part of the pressure bar assembly and the push rod, automatically determine the downward endpoint of the pressure block, and prevent the liquid from being squeezed out of the syringe, thus avoiding cleaning trouble. Attached Figure Description

[0014] Figure 1 This is a diagram showing the positional relationship between the automatic feeding buckle mechanism and the needle tube when they are fully engaged, as illustrated in the embodiment.

[0015] Figure 2 This is a cross-sectional view of the compression bar assembly;

[0016] Figure 3 A 3D view of the holding component.

[0017] The numbers in the diagram represent:

[0018] 100-Automatic feeding buckle mechanism,

[0019] 1-Holding component, 11-Shaped fixing block, 12-Arc-shaped spring, 13-Second sensor;

[0020] 2-Pressure rod assembly, 21-Pressure block, 211-Receiving cavity, 212-Anti-rotation platform, 22-Self-resetting buckle, 221-Connecting part, 2211-Anti-rotation protrusion, 222-Swing arm part, 2221-Spring groove, 223-Claw part, 2231-Inclined surface, 23-Spring, 24-Setting screw, 25-Rotating shaft, 26-First sensor;

[0021] 200 - Syringe, 201 - Push rod, 202 - Tube body. Detailed Implementation

[0022] like Figures 1 to 3 As shown, the present invention discloses an automatic feeding latching mechanism 100 for a multi-station mixing equipment, comprising a holding assembly 1 and a pressure rod assembly 2 located above the holding assembly 1. The pressure rod assembly 2 includes a pressure block 21, two self-resetting latches 22, two springs 23, two set screws 24, and two rotating shafts 25. The lower part of the pressure block 21 has a receiving cavity 211 in the middle for receiving a push rod 201 of a needle tube 200. The two self-resetting latches 22 are symmetrically arranged on both sides of the receiving cavity 211. The self-resetting latches 22 cover... The device includes a connecting part 221, a swing arm part 222, and a claw part 223 that are integrally connected from top to bottom. The connecting part 221 is rotatably connected to the pressure block 21 via a rotating shaft 25. Two set screws 24 are screwed and fixed to the opposite side walls of the receiving cavity 211. The outer end of the spring 23 abuts against the set screw 24, and the inner end abuts against the outer side of the swing arm part 222. The claw part 223 holds the upper part of the push rod 201 in the receiving cavity 211. The pressure block 21 has a first sensor 26 on the upper part of the receiving cavity 211 to detect the upper end of the push rod 201.

[0023] Spring 23 keeps the two self-resetting latches 22 clamped at all times. When changing syringe 200, the syringe body 202 is locked onto the holding assembly 1, and the pressure block 21 is initially positioned above the push rod 201, then continuously descends. The upper part of the push rod 201 automatically pushes open the two self-resetting latches 22, thereby extending into the receiving cavity 211. At this time, the upper end of the push rod 201 is detected by the first sensor 26, thus completing the syringe 200 changing process.

[0024] like Figure 2 As shown, the connecting part 221 and the claw part 223 protrude on the same side of the swing arm part 222, and the rotating shaft 25 is located in the inner part of the swing arm part 222.

[0025] This configuration allows the self-resetting latch 22 to swing at a larger angle when avoiding the push rod 201, while the downward force is smaller, thus preventing the self-resetting latch 22 from pressing the push rod 201 and causing the liquid to be squeezed out of the syringe 200.

[0026] like Figure 2 As shown, the inner side of the connecting part 221 is provided with an anti-rotation protrusion 2211, and the pressure block 21 is provided with an anti-rotation platform 212 at the upper part of the receiving cavity 211 to abut against the anti-rotation protrusion 2211.

[0027] Spring 23 tends to bring the two claws 223 closer together, but if the two claws 223 get too close, the resistance when the push rod 201 is aligned will increase, causing the liquid to be squeezed out. Anti-rotation platform 212 limits the rotation angle of anti-rotation protrusion 2211, so that the two claws 223 maintain a certain opening angle, making it easier for push rod 201 to push them apart.

[0028] like Figure 2 As shown, the outer side of the swing arm 222 is provided with a spring groove 2221, and the inner end of the spring 23 is surrounded by the spring groove 2221.

[0029] The swing arm 222 has sufficient thickness, and the spring groove 2221 is a recessed structure on the side of the swing arm 222 to keep the spring 23 in position. This ensures that the position of the spring 23 remains unchanged during the tightening of the set screw 24, so that the spring 23 can always have the function of resetting the self-resetting buckle 22.

[0030] like Figure 2 As shown, the lower edge of the claw portion 223 is provided with an inclined surface 2231 for contacting the upper part of the push rod 201.

[0031] The upper part of the push rod 201 has a frustum structure. When it just comes into contact with the self-resetting buckle 22, it will cooperate with the inclined surface 2231 to generate a relatively large lateral force, thereby reducing the longitudinal force, making the self-resetting buckle 22 easier to swing, and preventing the push rod 201 from being pressed.

[0032] like Figure 1 and Figure 3 As shown, the holding assembly 1 includes a contour fixing block 11, an arc-shaped spring piece 12 disposed on the outside of the contour fixing block 11, and a second sensor 13 disposed on the inside of the contour fixing block 11. The tube body 202 of the needle tube 200 is embedded in the contour fixing block 11 and held and fixed by the arc-shaped spring piece 12. The second sensor 13 detects whether the tube body 202 is in place.

[0033] The pressing of the pressure block 21 is completed automatically under the control of the drive device, and the second sensor 13 can determine the timing of the pressing of the pressure block 21, because the pressure block 21 only needs to be pressed down when the needle tube 200 is in place. When the needle tube 200 is in place, the tube body 202 is between the contour fixing block 11 and the arc-shaped spring piece 12, and the upper part of the tube body 202 will be sensed by the second sensor 13.

[0034] The material changing process of the multi-station mixing equipment is as follows:

[0035] 1. Pull the previous syringe 200 out from the front of the automatic feeding buckle mechanism 100, and the pressure block 21 will automatically rise to a position away from the holding component 1.

[0036] 2. Manually insert the new syringe 200 between the contour fixing block 11 and the arc-shaped spring piece 12. At this time, the syringe body 202 will be detected by the second sensor 13, and the pressure block 21 will gradually move down from a position higher than the push rod 201.

[0037] 3. The self-resetting latch 22 contacts the upper end of the push rod 201. The push rod 201 acts on the inclined surface 2231, causing the two self-resetting latches 22 to swing to both sides respectively. The spring 23 is compressed. When the claw part 223 exceeds the frustoconical upper end of the push rod 201, the spring 23 rebounds, locking the claw part 223 on both sides of the upper end of the push rod 201. At this time, because the upper end of the push rod 201 is completely inserted into the receiving cavity 211, it is detected by the first sensor 26, which outputs a signal, and the downward movement of the pressure block 21 stops. After that, the pressure block 21 continues to move downward and will begin to squeeze the liquid out of the syringe 200.

[0038] This mechanism can automatically connect the upper part of the pressure bar assembly 2 and the push rod 201, automatically determine the downward endpoint of the pressure block 21, and prevent the liquid from being squeezed out of the needle tube 200, thus avoiding cleaning trouble.

[0039] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. An automatic feeding buckle mechanism for a multi-station mixing equipment, characterized in that: The device includes a holding assembly and a pressure rod assembly located above the holding assembly. The pressure rod assembly includes a pressure block, two self-resetting latches, two springs, two set screws, and two rotating shafts. The lower center of the pressure block has a receiving cavity for a push rod of a needle tube. The two self-resetting latches are symmetrically arranged on both sides of the receiving cavity. Each self-resetting latch includes a connecting part, a swing arm part, and a claw part integrally connected from top to bottom. The connecting part is rotatably connected to the pressure block through the rotating shafts. The two set screws are screwed and fixed to the opposite side walls of the receiving cavity. The outer end of the spring abuts against the set screw, and the inner end abuts against the outer side of the swing arm part. The claw part holds the upper part of the push rod in the receiving cavity. The pressure block has a first sensor on the upper part of the receiving cavity to detect the upper end of the push rod.

2. The automatic feeding buckle mechanism for a multi-station mixing equipment according to claim 1, characterized in that: The connecting part and the claw part protrude to the same side of the swing arm part, and the rotating shaft is located in the inner part of the connecting part.

3. The automatic feeding buckle mechanism for a multi-station mixing equipment according to claim 2, characterized in that: The inner side of the connecting part is provided with an anti-rotation protrusion, and the pressure block is provided with an anti-rotation platform at the upper part of the receiving cavity to abut against the anti-rotation protrusion.

4. The automatic feeding buckle mechanism for a multi-station mixing equipment according to claim 1, characterized in that: The outer side of the swing arm is provided with a spring groove, and the inner end of the spring is surrounded by the spring groove.

5. The automatic feeding buckle mechanism for a multi-station mixing equipment according to claim 1, characterized in that: The lower edge of the claw is provided with an inclined surface for contacting the upper part of the push rod.

6. The automatic feeding buckle mechanism for a multi-station mixing equipment according to claim 1, characterized in that: The holding assembly includes a contour fixing block, an arc-shaped spring piece disposed on the outside of the contour fixing block, and a second sensor disposed on the inside of the contour fixing block. The tube body is embedded in the contour fixing block and held and fixed by the arc-shaped spring piece. The second sensor detects whether the tube body is in place.

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