CN217146550U

CN217146550U - Filling head for preventing liquid or paste with particles from being blocked

Info

Publication number: CN217146550U
Application number: CN202220765059.XU
Authority: CN
Inventors: 陈全波
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-05
Filing date: 2022-04-05
Publication date: 2022-08-09
Anticipated expiration: 2032-04-05

Abstract

The utility model relates to a filling equipment structure field especially indicates a prevent filling head of liquid or lotion putty of taking granule, and this filling head includes filling head body, sealing washer, end cap and pull rod. The filling head comprises a filling head body, wherein a connecting pipe and a discharging pipe are arranged at two ends of the filling head body respectively, an expanding pipe is arranged in the middle of the filling head body, the inner diameters of the connecting pipe and the discharging pipe are smaller than that of the expanding pipe, and the connecting pipe is detachably connected to a filling cylinder. After the structure is applied to a vertical full-automatic packaging machine, the discharge hole of the discharge pipe is plugged by the plug, so that liquid or paste leakage can be effectively avoided. The structure of the expanding tube enlarges the gap between the inner wall of the expanding tube and the plug, so that the liquid or paste with particles can smoothly flow out downwards through the gap between the inner wall of the expanding tube and the plug, thereby avoiding the phenomenon of material blockage. In addition, will the first body of filling is followed a filling section of thick bamboo lower extreme takes off, can clear up filling head body and end cap, and is very convenient.

Description

Filling head for preventing liquid or paste with particles from being blocked

Technical Field

The utility model relates to a filling equipment structure field especially indicates a prevent filling head of liquid or lotion putty of taking granule.

Background

In the field of packaging machines, vertical full-automatic packaging machines of filling structures are often used for automatic filling and packaging of materials such as liquids or pastes. The filling structure usually comprises a feeding cylinder, a feeding pipeline, a feeding piston, a one-way valve and a filling cylinder, wherein the cylinder drives the piston to move back and forth in the feeding pipeline and complete the work of outputting materials from a discharge hole at the bottom of the filling cylinder through a one-way valve switch. After the one-time filling and discharging process is finished, the discharging hole of the filling cylinder needs to be provided with a blocking structure, so that the outward leakage of the liquid or paste can be avoided.

As shown in fig. 1, most of the anti-leakage structures commonly used in the vertical full-automatic packaging machine with a filling structure currently connect a connecting rod 13 in a filling cylinder 11, a lower end of the connecting rod 13 is connected with a leakage blocking head 14, and an upper end of the filling cylinder 11 is connected with a power unit, such as an air cylinder 2, which drives the connecting rod 13 to move when a piston rod of the air cylinder 2 contracts, so that the connecting rod 13 moves, the leakage blocking head 14 moves upward from a discharge hole at the bottom of the filling cylinder 11, and the connecting rod 13 moves when the piston rod of the air cylinder 2 extends, so that the leakage blocking head 14 blocks the discharge hole at the bottom of the filling cylinder 11 (not shown in the drawing).

In such a structure, the plugging head 14 moves in the filling cylinder 11, and inevitably occupies the flowing space of the liquid or the paste in the filling cylinder 11, which greatly affects the flowing of the liquid or the paste, and especially for the liquid or the paste with particles, the internal blockage of the filling cylinder 11 is easily caused. And after the blockage, the filling cylinder 11 needs to be detached for cleaning, specifically, the air cylinder 2 needs to be detached, the connecting rod 13 and the plugging head 14 are drawn out, and the filling cylinder 11 is separated from the feeding pipeline 12, so that the filling cylinder 11 can be cleaned. Therefore, the filling structure in the prior art is very troublesome to clean.

Disclosure of Invention

The not enough that provides to above-mentioned background art, the utility model provides a prevent filling head of liquid or lotion putty of taking granule to overcome current problem.

The utility model adopts the following technical scheme:

a filling head for preventing liquid or paste with particles from being blocked is characterized by comprising a filling head body, a sealing ring, a plug and a pull rod; wherein the content of the first and second substances,

the filling head comprises a filling head body, wherein a connecting pipe and a discharging pipe are arranged at two ends of the filling head body respectively, an expanding pipe is arranged in the middle of the filling head body, the inner sizes of the cross sections of the connecting pipe and the discharging pipe are smaller than that of the expanding pipe, the connecting pipe and the discharging pipe are communicated with the expanding pipe, two ends of the filling head body penetrate through the filling head body, and the connecting pipe is detachably connected to a filling cylinder;

the sealing ring is provided with a through discharging hole and is fixed in the discharging pipe;

one end of the pull rod penetrates through the filling cylinder to be positioned in the filling head body;

the end cap is of a conical structure with two larger diameters and one smaller diameter, and is fixed to one end of the pull rod in the filling head body, so that the end with the smaller diameter faces the discharge pipe;

when the pull rod moves to drive the plug to move and press the plug towards the discharge pipe, the plug plugs the discharge pipe; when the pull rod moves to drive the plug to move into the expanding pipe, the discharging pipe is opened.

As a further improvement, one end of the pull rod in the filling head body is provided with a section of external thread, the external thread is in adaptive connection with a limit nut, the two sides of the pull rod close to the end part are provided with clamping grooves, the clamping grooves are in adaptive connection with clamping pieces, an embedded groove is arranged in the middle of each clamping piece, and the two sides of each clamping piece in the embedded groove are provided with elastic parts; the plug is sleeved outside the external thread in a penetrating mode, so that the end with the larger diameter of the plug is abutted to the limiting nut, the embedding groove sleeve of the clamping piece is nested outside the external thread, and the two elastic parts are clamped in the two clamping grooves respectively, so that the clamping piece is abutted to the end with the smaller diameter of the plug.

As a further improvement, one end of each of the two elastic parts of the clamping piece is connected with the arc-shaped connecting part, the other end of each of the two elastic parts is bent towards the middle of the embedded groove to form a limiting part, the embedded groove is nested outside the external thread, and the external thread is located between the connecting part and the limiting part.

As a further improvement, the clamping member is further connected with a limiting member, the two ends of the limiting member are both bending rods which are bent by 90 degrees in an initial state, and the two bending rods respectively penetrate through the limiting holes of the two limiting portions and then are bent to the surface of the clamping member.

As a further improvement, the connecting pipe is spirally embedded into the filling cylinder, so that the filling head body is fixed at the bottom of the filling cylinder and can be detached.

From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages: the utility model discloses an in the structure, the end cap is plugged up in the discharging tube the phenomenon of liquid or lotion seepage can be avoided when the pause filling to the discharge opening. The structure of the expanding tube is equivalent to expanding the space of the moving range of the plug in the filling head body, namely expanding the gap between the inner wall of the expanding tube and the plug, so that after the plug moves into the expanding tube, the liquid or paste with particles can smoothly flow downwards through the gap between the inner wall of the expanding tube and the plug and flow out from the discharge hole to finish filling, thereby avoiding the phenomenon of material blockage. In addition, if need clear up during end cap and peripheral position, will the filling head body is followed a filling section of thick bamboo lower extreme takes off, can be right the filling head body with the end cap is cleared up, and is very convenient.

Drawings

Fig. 1 is a schematic structural diagram of a filling tube in a prior art structure.

Fig. 2 is a schematic view of the three-dimensional structure of the filling cylinder of the present invention.

Fig. 3 is a schematic sectional view of the filling cylinder of the present invention.

Fig. 4 is the schematic view of the sectional structure of the plug after the plug rises to leave the discharge hole.

Fig. 5 is a schematic perspective view of the tie rod connecting plug.

Fig. 6 is a schematic cross-sectional view of the tie rod connecting plug.

Fig. 7 is a schematic front view of the end of the pull rod connected to the plug.

Fig. 8 is a schematic perspective view of the clip connecting with the limiting member.

Fig. 9 is a schematic front structural view of a vertical full-automatic packaging machine to which the present invention is applied.

Fig. 10 is a schematic structural view of the filling head body arranged below the forming die.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in the attached fig. 2 and 3, the filling head for preventing the liquid or paste with particles from blocking comprises a filling head body 3, a sealing ring 5, a plug 6 and a pull rod 4. The filling head body 3 is used for being connected to an output end of a filling cylinder 11, and the filling cylinder 2 is a flow channel for outputting liquid or paste.

Referring to fig. 3 and 4 again, one end of the pull rod 4 penetrates through the filling cylinder 11 to be located in the filling head body 3, and one end of the pull rod 4 in the filling head body 3 is fixedly connected with the plug 6. The other end of the pull rod 4 is connected to a piston rod 21 of a cylinder 2, the cylinder 2 is fixed to the upper end of the filling cylinder 11, and the piston rod 21 of the cylinder 2 extends into the filling cylinder 11. Further, the cylinder 2 can be controlled by a control system of a vertical full-automatic packaging machine, and the piston rod 21 of the cylinder 2 stretches and retracts to drive the pull rod 4 to move, so that the pull rod 4 drives the plug 6 to move in the filling head body 3.

Preferably, with continued reference to fig. 3, a sealing sleeve 15 may be fixed in one end of the filling cylinder 11 close to the cylinder 2, and the sealing sleeve 15 is in the structure of an oil seal equal displacement sealing ring. The pull rod 4 penetrates through the sealing sleeve 15, and the sealing sleeve 15 is structurally used for preventing liquid or paste from flowing out of one end of the air cylinder 2 upwards. The filling tube 11 can be connected to a discharge port of a vertical full-automatic packaging machine (not shown in the drawing) from one side through a feeding pipeline 2, so that liquid or paste is input into the filling tube 11 from the feeding pipeline 2 and flows downwards into the filling head body 3.

With reference to fig. 3, the two ends of the filling head body 3 are respectively a connecting pipe 301 and a discharging pipe 303, the middle of the filling head body 3 is an expanding pipe 302, and both the connecting pipe 301 and the discharging pipe 303 are communicated with the expanding pipe 302, so that the two ends of the filling head body 3 penetrate through. The connecting pipe 301 is used for connecting to the filling cylinder 11, and the inner diameter of the connecting pipe 301 is larger than the outer diameter of the plug 6, so that the plug 6 can penetrate into the filling head body 3 from the connecting pipe 301. The plug 6 is a conical structure with two larger and smaller diameters, after the plug 6 is fixed to the pull rod 4, one end of the plug 6 with the smaller diameter faces the discharge pipe 303.

The connecting pipe 301 and the filling cylinder 11 may be connected by a thread, specifically, the connecting pipe 301 shown in fig. 3 is spirally sleeved into the filling cylinder 11 to be fixed, so that liquid or paste can be injected into the filling head body 3 from the connecting pipe 301 through the filling cylinder 11, and the filling head body 3 can be detached by the structure with the thread connection, so that the inside of the filling head body 3 and the plug 6 can be conveniently cleaned.

With continued reference to fig. 3 and 4, the outlet pipe 303 is used to discharge the liquid or paste flowing into the filling head body 3, and the cross-sectional inner dimensions of the outlet pipe 303 and the connecting pipe 301 are smaller than the cross-sectional inner dimension of the expanding pipe 302. That is, the inner diameters of the connection pipe 301 and the discharge pipe 303 are smaller than the inner diameter of the expanding pipe 302. This structure of expanding pipe 302 is equivalent to the space of expanding end cap 6 removal scope in filling head body 3, has expanded promptly the inner wall of expanding pipe 302 with the clearance between end cap 6 makes liquid or lotion with granule all smoothly flow downwards through the clearance between expanding pipe 302 inner wall with the end cap 6, accomplishes the filling, has effectually avoided the phenomenon of putty, and it is thus obvious the utility model discloses also applicable to the filling of materials such as granule.

With continued reference to fig. 4, the sealing ring 5 is fixed in the discharge pipe 303, and the center of the sealing ring 5 has a discharge hole 501 therethrough, and the discharge hole 501 is used for discharging the liquid or paste. When the pull rod 4 moves to drive the plug 6 to move and press towards the discharge pipe 303, the end with the smaller diameter of the plug 6 is embedded into the discharge hole 501 of the sealing ring 5, so that the discharge pipe 303 is completely blocked, and liquid or paste cannot flow out of the discharge pipe 303; when the pull rod 4 moves to drive the plug 6 to move into the expanding tube 302, the discharge tube 303 is opened, so that liquid can flow out from the discharge hole 501. In addition, the sealing ring 5 and the plug 6 may be made of rubber, and the plug 6 moves to block the discharge hole 501 by elasticity of the rubber, so that the discharge pipe 303 can be completely sealed.

Preferably, the edge of the nozzle of the tapping pipe 303 is bent toward the center to form a stopper 304, and the stopper 304 is configured to block the sealing ring 5 and simultaneously perform a certain sealing function. Further, the outer side wall of the sealing ring 5 can be embedded and fixed with a plurality of sealing rings 51 to realize the gap sealing between the sealing ring 5 and the discharge pipe 303. Installation during sealing washer 5, will sealing washer 5 is followed connecting pipe 301 imbeds to in the filling head body 3, the rethread pull rod 4 or other shaft-like objects will sealing washer 5 pushes into in the discharging pipe 303, realize sealing washer 5's assembly is fixed.

As shown in fig. 5 and 6, the plug 6 is fixed to one end of the pull rod 4 through a limit nut 7 and a clamping member 8. Specifically, referring to fig. 7 again, one end of the pull rod 4 located in the filling head body 3 is provided with one section of external thread 401, the external thread 401 is in adaptive connection with the limit nut 7, the external thread 401 is close to two sides of the end position of the pull rod 4, and the clamping grooves 402 are in adaptive connection with the clamping pieces 8. Referring to fig. 8 again, the clamping member 8 may be a sheet metal part formed by metal stamping, the clamping member 8 has a structure in which an insertion groove 801 is formed in the middle of the clamping member 8, the clamping member 8 is located on two sides of the insertion groove 801, two elastic parts 803 are respectively bent towards the middle of the insertion groove 801 to form a limiting part 805, the other ends of the two elastic parts 803 are connected with an arc-shaped connecting part 804, and the two elastic parts 803 have elasticity which is restored towards the middle after being bent outwards through the connection of the connecting part 804.

With continued reference to fig. 5 and 6, when the plug 6 is assembled, the stop nut 7 is first connected to the external thread 401 and screwed to the root of the external thread 401, so that the stop nut 7 is fastened to the pull rod 4; then, the plug 6 is sleeved outside the external thread 401 in a penetrating manner, so that the end with the larger diameter of the plug 6 abuts against the limiting nut 7; and finally, the two elastic parts 803 of the clamping piece 8 are outwards expanded, the embedded groove 701 is nested outside the external thread 401, the two elastic parts 803 are loosened, so that one part of each of the two elastic parts 803 is clamped in the two clamping grooves 402 respectively, the external thread 401 is positioned between the connecting part 804 and the limiting part 805, and the clamping piece 8 is abutted against the end with the smaller diameter of the plug 6, so that the fixation of the plug 6 can be completed. In the fixing structure, the clamping groove 402 can limit the clamping member 8 to prevent the clamping member 8 from falling downwards, the connecting portion 804 and the limiting portion 805 can form mutual limitation with the pull rod 4 to prevent the clamping member 8 from moving, and finally the clamping member 8 can block the plug 6 to prevent the plug 6 from falling downwards.

In addition, the two elastic portions 803 are provided with a limiting hole 802, and the limiting hole 802 can be conveniently hooked by a hook to pull the elastic portions 803 outwards so that the two elastic portions 803 are outwards expanded. The clamping member 8 may further be connected to a limiting member 9, and both ends of the limiting member 9 are bending rods 901 bent by 90 degrees in an initial state. After the embedded groove 801 is nested outside the external thread 401, because the plug 6 has flexibility for rubber, the limiting member 9 can be pushed into between the plug 6 and the clamping member 8, then the two bending rods 901 of the limiting member 9 respectively pass through the two limiting holes 802 of the limiting portion 805, and then the bending rods 901 are bent to the surface close to the clamping member 8 as shown in fig. 8, so that the elastic portions 803 can be locked through the connection of the limiting member 9, the two elastic portions 803 are prevented from being outwards propped open under the action of other external forces, the clamping member 8 cannot fall off, and the plug 6 is ensured to be always fixed at the end of the pull rod 4.

As shown in fig. 9 and 10, the structure of the present invention can be arranged in a forming mold 16 for forming a packaging film 10 in a vertical full-automatic packaging machine 1, wherein the filling cylinder 11 is fixed in the forming mold 16, so that the filling head body 3 is located at the lower end of the forming mold 16, the connecting pipe 301 is located in the forming mold 16, and the expanding pipe 302 and the discharging pipe 303 extend out of the forming mold 16. When the vertical full-automatic packaging machine 1 works, a packaging film 10 is conveyed from top to bottom by the vertical full-automatic packaging machine 1, after the packaging film 10 passes through the forming die 16 and the side edge and the bottom of the packaging film 10 are subjected to heat sealing forming, the piston rod 21 of the cylinder 2 is controlled to ascend, so that the pull rod 4 drives the plug 6 to ascend into the expanding tube 302, and the discharge hole 501 of the sealing ring 5 is opened, so that liquid or paste can flow out downwards from the discharge hole 501; and then, the piston rod 21 of the cylinder 2 is controlled to descend, so that the pull rod 4 drives the plug 6 to descend to block the discharge hole 501, and at the moment, the filling of the liquid or paste of one packaging bag 101 can be completed. Therefore, the utility model discloses a filling mode can be convenient for realize quantitative filling, can effectually avoid the phenomenon of liquid or lotion seepage simultaneously. In addition, connecting pipe 301 and discharging pipe 303 diameter are less than in the structure of expanding pipe 302, connecting pipe 301 is connected in forming die 16, be favorable to reducing forming die 16's size to reduce the shaping size of wrapping bag 101, discharging pipe 303 stretches out downwards forming die 16's lower extreme makes the utility model discloses can dock the comparatively narrow and small wrapping bag 101 of filling pocket mouth, from this visible adoption the utility model discloses a during the structure filling, can design wrapping bag 101 littleer, be favorable to sparingly packaging film 10, namely, can save the packing consumptive material.

To sum up, the utility model discloses a structure is applied to vertical full automatic packaging machine 1 back, end cap 6 is plugged up in discharging pipe 303 discharge hole 501 can avoid when the pause filling (for example when wrapping bag 101 shaping) liquid or lotion seepage. The structure of the expanding tube 302 is equivalent to that the gap between the inner wall of the expanding tube 302 and the plug 6 is expanded, so that after the plug 6 is moved into the expanding tube 302, liquid or paste with particles can smoothly flow downwards through the gap between the expanding tube 302 and the plug 6 and flow out from the discharge hole 501 to finish filling. In addition, after long-time use, if the plug 6 and the peripheral position thereof need to be cleaned, or the plug 6 and the sealing ring 5 need to be replaced, the filling head body 3 and the plug 6 can be cleaned, or the plug 6 and the sealing ring 5 can be removed and replaced, which is very convenient, by only taking the filling head body 3 down from the lower end of the filling cylinder 11.

The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.

Claims

1. A filling head for preventing liquid or paste with particles from being blocked is characterized by comprising a filling head body, a sealing ring, a plug and a pull rod; wherein the content of the first and second substances,

the plug is in a conical structure with two large and small diameters, and is fixed to one end of the pull rod in the filling head body, so that the end with the smaller diameter faces the discharge pipe;

2. A filling head against particulate loading of liquid or paste according to claim 1, characterised in that: one end of the pull rod, which is positioned in the filling head body, is provided with a section of external thread, the external thread is in adaptive connection with a limiting nut, clamping grooves are formed in the two sides of the pull rod, which are close to the end part of the pull rod, the clamping grooves are in adaptive connection with clamping pieces, an embedded groove is formed in the middle of each clamping piece, and elastic parts are arranged on the two sides of each embedded groove of each clamping piece; the plug is sleeved outside the external thread in a penetrating mode, so that the end with the larger diameter of the plug is abutted to the limiting nut, the embedding groove sleeve of the clamping piece is nested outside the external thread, and the two elastic parts are clamped in the two clamping grooves respectively, so that the clamping piece is abutted to the end with the smaller diameter of the plug.

3. A filling head against particulate loading of liquid or paste according to claim 2, characterised in that: two of joint spare elastic part one end is connected curved connecting portion, two the other end of elastic part all to the spacing portion of intermediate bending type formation of embedded groove, the embedding groove cover nestification is in after the external screw thread is outer, the external screw thread be located connecting portion with between the spacing portion.

4. A filling head against particulate loading of liquid or paste according to claim 3, characterised in that: the joint spare still connects the locating part, the both ends initial condition of locating part is the pole of buckling 90, two the pole of buckling is buckled to after passing two spacing hole of spacing portion respectively the surface of joint spare.

5. A filling head against particulate loading of liquid or paste material according to any of claims 1 to 4, wherein: the connecting pipe is spirally connected and embedded into the filling cylinder, so that the filling head body is fixed at the bottom of the filling cylinder and can be detached.