Servo push head assembly

Abstract

The utility model relates to a servo push head assembly which comprises a rack, the rack is provided with a sliding rail, the sliding rail is provided with a displacement driving seat and a push rod connecting seat in a sliding fit mode, the push rod connecting seat is provided with a push rod and a push head connected with the push rod, the displacement driving seat is provided with a driving device, and a magnetic adsorption assembly is arranged between the displacement driving seat and the push rod connecting seat. The magnetic adsorption assembly comprises a magnet and an adsorption body, a shutdown alarm device is arranged between the displacement driving seat and the push rod connecting seat and comprises a shutdown alarm proximity switch and an induction part, the shutdown alarm proximity switch is arranged on the displacement driving seat, and the induction part is arranged on the push rod connecting seat and comprises a connecting part and an induction end. An elastic buffering device is arranged between the connecting part and the push rod connecting seat, the buffering device is arranged to absorb force generated when the materials are pushed, the attraction force of the magnetic attraction assembly can be reduced, and the push rod connecting seat and the displacement driving seat can be rapidly separated under the condition that the materials are stuck.

Description

Technical Field

[0001] The utility model relates to the field of medicine packaging equipment, in particular to a servo push head assembly. Background Art

[0002] Existing paper box packaging machines are usually equipped with a push head assembly for pushing the product into the packaging box. The existing push head assembly is a push mechanism and a push fault detection mechanism shown in the application number: CN201821168897.9. The push fault detection mechanism includes a magnet seat, an alarm proximity switch and an induction magnet of the alarm proximity switch. The push mechanism is provided with a connecting seat. The connecting seat and the magnet seat are slidably arranged on the push slide rail. The induction magnet and the alarm proximity switch can disconnect the connection between the magnet seat and the connecting seat. When the material is stuck and the push mechanism cannot continue to push the material forward, the connecting seat is disconnected from the magnet seat to avoid the push machine The structure continues to move forward to damage the material and the pushing structure itself, and the induction magnet separates from the induction surface, thereby sounding an alarm. However, in the above structure, when the pushing mechanism contacts the material, the material itself has weight. When the pushing mechanism pushes the material, the material will exert force on the pushing mechanism. In order to prevent the connection seat and the magnet seat from detaching when the material is not stuck when the material is heavy or the pushing mechanism is fast, the adsorption force of the induction magnet is generally set to be stronger. However, if the adsorption force of the induction magnet is strong, the magnet seat and the connection seat cannot be quickly disconnected when the material is stuck, causing the pushing mechanism to continue to exert thrust on the material, resulting in damage to the material or equipment. Summary of the invention

[0003] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned prior art.

[0004] A servo push head assembly is provided, which is provided with a buffer device to absorb the force generated when pushing materials, and can reduce the suction force of the magnetic adsorption assembly, so that the push rod connecting seat and the displacement driving seat are quickly separated when the material is stuck.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a servo push head assembly comprises a frame, the frame is provided with a slide rail, the slide rail is slidably matched with a displacement driving seat and a push rod connecting seat, the push rod connecting seat is provided with a push rod and a push head connected to the push rod, the displacement driving seat is provided with a driving device that drives its displacement, a magnetic adsorption assembly is provided between the displacement driving seat and the push rod connecting seat, the magnetic adsorption assembly comprises a magnet fixedly arranged on one end of the displacement driving seat facing the push rod connecting seat and an adsorption body that can be adsorbed by the magnet is fixedly arranged on one end of the push rod connecting seat facing the displacement driving seat, a shutdown alarm device is also provided between the displacement driving seat and the push rod connecting seat, the shutdown alarm device comprises a shutdown alarm proximity switch and a sensing member that cooperates with the shutdown alarm proximity switch, the shutdown alarm proximity switch is fixedly arranged on the displacement driving seat, and the sensing member is fixedly arranged on the push rod connecting seat, and is characterized in that: the sensing member comprises a connecting part movably connected to the push rod connecting seat and a sensing end that cooperates with the shutdown alarm proximity switch, and an elastic buffer device is provided between the connecting part and the push rod connecting seat.

[0006] A further arrangement of the utility model is: the elastic buffer device includes a spring assembly, the connecting portion is provided with a spring mounting groove, the spring mounting groove is provided with a first limit plate at one end facing the displacement driving seat, and the first limit plate is fixedly connected to the push rod connecting seat, the spring mounting groove is provided with a second limit plate at one end away from the push rod connecting seat, the second limit plate is fixedly connected to the connecting portion, the spring assembly is arranged between the first limit plate and the second limit plate, guide grooves are respectively and parallelly provided on opposite sides of the spring mounting groove, each of the guide grooves is provided with a guide block that can move in the guide groove, and the guide block is fixedly connected to the push rod connecting seat.

[0007] A further configuration of the utility model is that the spring assembly comprises connecting plates which are arranged opposite to each other, the connecting plates are fixedly connected with springs, and each of the connecting plates is respectively connected to the first limiting plate and the second limiting plate on the same side.

[0008] The utility model with the above-mentioned characteristics: the driving device drives the displacement driving seat and drives the push rod connecting seat to move until the push head contacts the material. At this time, the material changes from a static state to a moving state, generating a force on the push head in the opposite direction of the displacement. At this time, the spring of the spring assembly deforms, thereby eliminating the force generated when pushing the material, thereby preventing the displacement driving seat and the push rod connecting seat from detaching when the material is not stuck.

[0009] A further arrangement of the utility model is that: the first limit plate is provided with a plug-in groove on the side facing the second limit plate and the second limit plate is provided with a plug-in groove on the side facing the first limit plate, and the plug-in groove is plugged and matched with the connecting plate body, and each of the plug-in grooves is provided with a spring opening for the passage of a spring, and the first limit plate and the second limit plate are respectively provided with positioning holes passing through the provided plug-in grooves, and each of the positioning holes is threadedly provided with a positioning pin, and the connecting plate body is provided with a positioning groove matched with the positioning pin, and when the connecting plate body is plugged into the plug-in groove, the positioning pin is simultaneously passed through the positioning hole and the positioning groove.

[0010] The utility model with the above characteristics: the connecting plates are respectively inserted into the inserting grooves, and the positioning pins enter the positioning grooves to position the connecting plates to prevent the connecting plates from falling out. At the same time, the positioning method of the positioning pins is adopted to facilitate the disassembly and replacement of the spring assembly.

[0011] A further configuration of the utility model is that the driving device comprises pulleys relatively arranged above the frame, a synchronous belt is linked between the pulleys, the displacement driving seat is fixedly connected to one side below the synchronous belt, and any pulley is provided with a servo motor driving it to rotate.

[0012] The utility model with the above-mentioned characteristics: the pulley drives the synchronous belt to work, and the synchronous belt drives the displacement driving seat to move back and forth along the slide rail, so that the displacement driving seat drives the push rod connecting seat connected to it to move. When the push head pushes the material, and the material gets stuck, causing the push rod connecting seat that drives the push head and the push rod to move to be unable to continue moving forward, at this time, the displacement driving seat continues to move forward, the magnet on the displacement driving seat is separated from the adsorption body on the displacement driving seat, and the push rod connecting seat stops moving to prevent damage to the material, the push rod and the push head.

[0013] The beneficial effects of the utility model are as follows: a buffer device is provided to absorb the force generated when pushing materials, thereby preventing the push rod connecting seat and the displacement driving seat from being separated due to the force generated when pushing materials when the materials are not stuck, thereby reducing the suction force of the magnetic adsorption component, so that the push rod connecting seat and the displacement driving seat are quickly separated when the materials are stuck, thereby preventing damage to materials and equipment.

[0014] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model.

[0016] Figure 2 It is a three-dimensional schematic diagram of part A of the embodiment of the present utility model.

[0017] Figure 3 It is a three-dimensional schematic diagram of a spring assembly according to an embodiment of the utility model.

[0018] Figure 4 It is a three-dimensional schematic diagram of the sensing element according to the embodiment of the utility model.

[0019] Figure 5 It is a three-dimensional schematic diagram of the first limiting plate of an embodiment of the utility model.

[0020] Figure 6 It is a three-dimensional schematic diagram of the second limiting plate of the embodiment of the utility model.

[0021] Figure 7 It is a three-dimensional schematic diagram of connecting plates according to an embodiment of the utility model. DETAILED DESCRIPTION

[0022] like Figure 1 —— Figure 7A servo push head assembly shown in the figure includes a frame 1, the frame 1 is provided with a slide rail 2, the slide rail 2 is slidably matched with a displacement drive seat 3 and a push rod connecting seat 4, the push rod connecting seat 4 is provided with a push rod 5 and a push head 6 connected to the push rod 5, the displacement drive seat 3 is provided with a driving device for driving its displacement, the driving device includes a pulley 7 relatively arranged above the frame 1, a synchronous belt 8 is linked between the pulleys 7, the displacement drive seat 3 is fixedly connected to the lower side of the synchronous belt 8, any pulley 7 is provided with a servo motor 26 for driving its rotation, a magnetic adsorption component is provided between the displacement drive seat 3 and the push rod connecting seat 4, the magnetic adsorption component includes a magnet 10 fixedly arranged at one end of the displacement drive seat 3 facing the push rod connecting seat 4 and a push rod connecting seat 4 is fixedly provided with an adsorption body 11 capable of being adsorbed by the magnet 10 at one end of the displacement driving seat 3, and a shutdown alarm device is also provided between the displacement driving seat 3 and the push rod connecting seat 4. The shutdown alarm device includes a shutdown alarm proximity switch 12 and a sensing element 13 matched with the shutdown alarm proximity switch 12. The shutdown alarm proximity switch 12 is fixedly provided on the displacement driving seat 3, and the sensing element 13 is fixedly provided on the push rod connecting seat 4. The sensing element 13 includes a connecting portion 1301 movably connected to the push rod connecting seat 4 and a sensing end 1302 matched with the shutdown alarm proximity switch 12. An elastic buffer device is provided between the connecting portion 1301 and the push rod connecting seat 4, and the elastic buffer device includes a spring assembly. The connecting portion 1301 is provided with a spring assembly. There is a spring installation groove 14, and a first limit plate 15 is provided at one end of the spring installation groove 14 facing the displacement driving seat 3, and the first limit plate 15 is fixedly connected to the push rod connecting seat 4, and a second limit plate 16 is provided at one end of the spring installation groove 14 away from the push rod connecting seat 4, and the second limit plate 16 is fixedly connected to the connecting portion 1301. The spring assembly is arranged between the first limit plate 15 and the second limit plate 16, and guide grooves 17 are respectively and parallelly provided on the opposite sides of the spring installation groove 14, and each guide groove 17 is provided with a guide block 18 that can move in the guide groove 17, and the guide block 18 is fixedly connected to the push rod connecting seat 4. The spring assembly includes relatively arranged connecting plate bodies 19, and a spring 20 is fixedly connected between the connecting plate bodies 19. The connecting plate body 19 is respectively connected to the first limiting plate 15 and the second limiting plate 16 on the same side. The first limiting plate 15 is provided with a plug-in slot 21 on the side facing the second limiting plate 16 and the second limiting plate is provided with a plug-in slot 21 on the side facing the first limiting plate. The plug-in slot 21 is plugged and matched with the connecting plate body 19. Each plug-in slot 21 is provided with a spring opening 22 for the spring 20 to pass through. The first limiting plate 15 and the second limiting plate 16 are respectively provided with a positioning hole 23 passing through the provided plug-in slot 21. Each positioning hole 23 is threadedly matched with a positioning pin 24. The connecting plate body 19 is provided with a positioning slot 25 matched with the positioning pin 24. When the connecting plate 19 is plugged into the plug-in slot 21, the positioning pin 24 is simultaneously penetrated through the positioning hole 23 and the positioning slot 25.

[0023] The pulley 7 drives the synchronous belt 8 to work, and the synchronous belt 8 drives the displacement driving seat 3 to move back and forth along the slide rail 2, so that the displacement driving seat 3 drives the push rod connecting seat 4 connected to it to move, and the displacement driving seat 3 drives the push rod connecting seat 4 to move until the push head 6 contacts the material. At this time, the material changes from a static state to a moving state, and generates a force on the push head 6 in the opposite direction of the displacement. At this time, the spring 20 of the spring assembly is deformed, thereby eliminating the force generated when pushing the material, preventing the displacement driving seat 3 and the push rod connecting seat 4 from detaching when the material is not stuck, and thus reducing the suction force of the magnetic adsorption assembly, so that the push rod connecting seat 4 and the displacement driving seat 3 can quickly detach when the material is stuck, thereby preventing damage to the material, the push rod 5 and the push head 6.

Claims

1. A servo push head assembly, comprising a frame, wherein the frame is provided with a slide rail, the slide rail is slidably matched with a displacement driving seat and a push rod connecting seat, the push rod connecting seat is provided with a push rod and a push head connected to the push rod, the displacement driving seat is provided with a driving device that drives its displacement, a magnetic adsorption assembly is provided between the displacement driving seat and the push rod connecting seat, the magnetic adsorption assembly comprises a magnet fixedly arranged on one end of the displacement driving seat facing the push rod connecting seat, and an adsorption body that can be adsorbed by the magnet is fixedly arranged on one end of the push rod connecting seat facing the displacement driving seat, a shutdown alarm device is also provided between the displacement driving seat and the push rod connecting seat, the shutdown alarm device comprises a shutdown alarm proximity switch and a sensing member cooperating with the shutdown alarm proximity switch, the shutdown alarm proximity switch is fixedly arranged on the displacement driving seat, and the sensing member is fixedly arranged on the push rod connecting seat, wherein the characteristics are: The sensing element comprises a connecting portion movably connected to the push rod connecting seat and a sensing end matched with the shutdown alarm proximity switch, and an elastic buffer device is arranged between the connecting portion and the push rod connecting seat.

2. A servo push head assembly according to claim 1, characterized in that: The elastic buffer device includes a spring assembly, a spring mounting groove is formed on the connecting portion, a first limit plate is provided on one end of the spring mounting groove facing the displacement driving seat, and the first limit plate is fixedly connected to the push rod connecting seat, a second limit plate is provided on one end of the spring mounting groove away from the push rod connecting seat, and the second limit plate is fixedly connected to the connecting portion, the spring assembly is arranged between the first limit plate and the second limit plate, guide grooves are respectively and parallelly provided on two opposite sides of the spring mounting groove, and a guide block that can move in the guide groove is provided in each of the guide grooves, and the guide block is fixedly connected to the push rod connecting seat.

3. A servo push head assembly according to claim 2, characterized in that: The spring assembly comprises connecting plate bodies which are arranged opposite to each other, wherein springs are fixedly connected between the connecting plate bodies, and each of the connecting plate bodies is respectively connected to a first limiting plate and a second limiting plate on the same side.

4. A servo push head assembly according to claim 3, characterized in that: The first limit plate is provided with a plug-in groove on the side facing the second limit plate and the second limit plate is provided with a plug-in groove on the side facing the first limit plate. The plug-in groove is plugged and matched with the connecting plate body. Each of the plug-in grooves is provided with a spring opening for the spring to pass through. The first limit plate and the second limit plate are respectively provided with positioning holes passing through the plug-in grooves. Each of the positioning holes is threadedly matched with a positioning pin. The connecting plate body is provided with a positioning groove matched with the positioning pin. When the connecting plate body is plugged into the plug-in groove, the positioning pin is simultaneously passed through the positioning hole and the positioning groove.

5. The servo pusher head assembly according to claim 1, characterized in that: The driving device includes pulleys relatively arranged above the frame, a synchronous belt is linked between the pulleys, the displacement driving seat is fixedly connected to one side below the synchronous belt, and any pulley is provided with a servo motor driving it to rotate.

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