CN211756616U

CN211756616U - Needle cylinder for adhesive

Info

Publication number: CN211756616U
Application number: CN202020068874.1U
Authority: CN
Inventors: 谭铭; 周敏
Original assignee: Guangdong Sangtai Technology Co ltd
Current assignee: Guangdong Sangtai Technology Co ltd
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2020-10-27
Anticipated expiration: 2030-01-13

Abstract

The utility model relates to a cylinder for adhesive, relate to the technical field of construction, it includes the barrel and slides along the axis direction and set up in the piston of barrel, have the holding chamber that is used for the holding gluing agent in the barrel, the fixed extruded tube that is provided with on the one end opening in holding chamber, the other end in the sealed holding chamber of piston is in order to slide at the holding intracavity, the piston includes that the waist of contradicting with holding intracavity wall sets up the head that is close to extruded tube one side with fixed with the waist, the middle part of head is towards being close to the bellied curved surface setting of extruded tube direction, the waist encircles the gas holding recess of offering to be used for the holding air with the junction of head, the waist is personally submitted to the bellied curved surface setting in barrel center with the conflict in holding chamber, the both ends of waist all with. The gas containing groove is only sunken towards one side, so that the piston is convenient to demould after being formed in the mould, thereby the utility model has the advantages of convenient production.

Description

Needle cylinder for adhesive

Technical Field

The utility model belongs to the technical field of the technique of gluing agent use packing and specifically relates to a cylinder for gluing agent is related to.

Background

Adhesives are natural or synthetic, organic or inorganic substances that join two or more articles or materials together by interfacial adhesion and cohesion. The adhesive mainly comprises glue, daub, mucilage, paste and the like.

On a hydration production line, the adhesive is usually placed in a syringe, and then the syringe is quantitatively ventilated through a dispenser so as to quantitatively discharge the adhesive in the syringe. Therefore, the existing adhesive manufacturers often package the produced adhesive directly by using a needle cylinder, thereby facilitating subsequent transportation and practicability.

The utility model discloses a reference utility model with an authorization publication number of CN207056936U, which discloses a piston improved type glue dispensing needle cylinder, the needle cylinder comprises a cylinder body and a piston arranged in the cylinder body, the piston comprises a piston head, an upper groove, a lower groove, a groove connecting seat and a piston push rod; the upper groove is positioned at the bottom edge of the piston head, the lower groove is positioned at one end of the piston push rod close to the piston head, and the upper groove and the lower groove are oppositely arranged and are connected through a groove connecting seat; the diameter of the groove connecting seat is smaller than the diameters of the lower groove and the upper groove, and an annular space is formed between the upper groove and the lower groove and the inner wall of the syringe body of the syringe. However, in the actual production process, the concave direction of the upper groove is opposite to that of the lower groove, so that the piston is difficult to demould, thereby increasing the production difficulty of the syringe.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a cylinder for adhesive has the advantage of the production of being convenient for.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a cylinder for adhesive, include the barrel and slide along the axis direction set up in the piston of barrel, have the holding chamber that is used for the holding gluing agent in the barrel, the fixed extruded pipe that is provided with on the one end opening in holding chamber, the piston is sealed the other end in holding chamber with the holding intracavity slides, the piston include with holding intracavity wall conflict waist with fixed set up in the waist is close to extrude the head of pipe one side, the middle part of head is towards being close to the bellied curved surface setting of extruded pipe direction, the waist with the junction of head encircles and offers the gas holding recess that is used for the holding air, the waist with the conflict in holding chamber is personally submitted to the bellied curved surface setting in barrel center, the both ends of waist all with the inner wall interference fit in holding chamber.

By adopting the technical scheme, the adhesive is placed in the accommodating cavity and then the piston is placed in the accommodating cavity, the piston moves in the accommodating cavity to gradually approach the adhesive, the middle protrusion of the head of the piston firstly collides with the adhesive, and then the abutting area of the piston and the adhesive is gradually increased by taking the center of the head as the center, so that air remained between the head of the piston and the adhesive is extruded into the air accommodating groove;

therefore, the air containing groove is only sunken towards one side, so that the piston is convenient to demould after being molded in a die, and the needle cylinder has the advantage of being convenient to produce.

The utility model discloses further set up to: the opening ring of the containing cavity far away from one end of the extrusion pipe is provided with a first guide inclined plane in a winding mode, and the first guide inclined plane inclines towards the center of the cylinder body along the direction close to the extrusion pipe.

Through adopting above-mentioned technical scheme, the conflict face of first guide inclined plane and piston is contradicted so that the piston can enter into the holding chamber along first guide inclined plane to make the installation of piston rod more simple and convenient.

The utility model discloses further set up to: the utility model discloses a mounting structure of extruding pipe, including barrel, extrusion pipe, mounting groove, sealing head, barrel, extrusion pipe outer cover be equipped with barrel fixed connection's mounting pipe, the mounting pipe with be formed with the mounting groove between the extrusion pipe, detachably is provided with in the mounting groove and is used for sealing the extrusion pipe is kept away from barrel one side open-ended head, the head with threaded connection between the inner wall of mounting.

Through adopting above-mentioned technical scheme, the head is connected with the inner wall threaded connection of installation pipe for the dismouting between head and the installation pipe is more simple and convenient.

The utility model discloses further set up to: the head is towards one side of barrel is seted up the confession the sealed hole of extruding the embedding of pipe, the diameter in sealed hole reduces along the direction of keeping away from the barrel gradually.

Through adopting above-mentioned technical scheme, sealed hole reduces so that extrude the leakproofness better between pipe and the sealed hole gradually.

The utility model discloses further set up to: at least one shifting sheet is fixedly arranged on the outer circular surface of the seal head.

Through adopting above-mentioned technical scheme, exert thrust so that the head rotates to the plectrum to make the dismouting of head simpler and more convenient.

The utility model discloses further set up to: the one end that the barrel was kept away from the extrusion pipe has the installation outer edge, the installation is followed upward detachably outward and is provided with sealed lid, sealed covering is fixed to be provided with the embedding the sealing plug in holding chamber, the outer disc of sealing plug with the inner wall in holding chamber is contradicted.

By adopting the technical scheme, the sealing plug is embedded into the accommodating cavity so as to prevent the piston from sliding away from the accommodating cavity in the transportation process of the needle cylinder filled with the adhesive.

The utility model discloses further set up to: the sealing cover is provided with a raising edge, and the raising edge is positioned on one side, far away from the barrel body, of the mounting outer edge.

Through adopting above-mentioned technical scheme, apply one to rise along keeping away from the power of extrusion pipe so that the sealing plug breaks away from the holding chamber to the dismantlement of sealed lid of being convenient for.

The utility model discloses further set up to: the sealing cover is fixedly provided with two hooking ends used for hooking and holding the outer edge of the installation, and the two hooking ends are located on two opposite sides of the sealing cover and are hooked upwards towards the center close to the sealing cover.

Through adopting above-mentioned technical scheme, when the sealing plug embedding holding chamber, collude and hold the end and collude and hold on the installation outer edge to the installation stability of sealed lid has been improved.

The utility model discloses further set up to: one side of the hooking end, which is far away from the sealing cover, is provided with a second guide inclined surface which is arranged in an arc shape.

Through adopting above-mentioned technical scheme, during the installation of sealed lid, collude the second guide inclined plane of holding the end and contradict with the installation outer one side of keeping away from the extruded tube earlier, collude hold the end and take place elastic deformation under the second guide inclined plane effect in order to remove to the axis direction of keeping away from the barrel, then collude hold the end and remove towards the direction that is close to the extruded tube along the outer fringe face of installing outer edge, hold the end collude hold the installation outer one side of being close to the extruded tube until colluding, second guide inclined plane makes the staff need not to hold the end to colluding and applys the power of keeping away from barrel axis direction when using sealed lid, can accomplish the installation of sealed lid, therefore, make the installation of sealed lid more simple.

The utility model discloses further set up to: and one side of the sealing plug, which is far away from the extrusion pipe, is provided with a pressing groove which penetrates through the sealing cover.

Through adopting above-mentioned technical scheme, exert pressure so that sealed stopper embedding holding chamber to the groove of pressing to the installation of sealed lid is convenient for.

To sum up, the utility model discloses a beneficial technological effect does:

1. the needle cylinder is characterized in that an adhesive is placed in the accommodating cavity and then placed in the piston, the piston is placed in the accommodating cavity and moves in the accommodating cavity to be gradually close to the adhesive, the middle protrusion of the head of the piston is firstly abutted against the adhesive, then the abutting area of the piston and the adhesive is gradually increased by taking the center of the head as the center, so that air remained between the head of the piston and the adhesive is extruded into the air accommodating groove, and therefore the air accommodating groove is only sunken towards one side, the piston is convenient to demould after being formed in a mould, and the needle cylinder has the advantage of being convenient to produce;

2. the sealing plug embedding holding chamber is in order to avoid the cylinder of being equipped with the gluing agent in the transportation, and the piston slides and breaks away from the holding chamber, and when sealing plug embedding holding chamber, collude to hold the end and collude and hold outside the installation on following to improved the installation stability of sealing cover, exerted the power of keeping away from the extrusion tube so that the sealing plug breaks away from the holding chamber to rise to stick up along, thereby the dismantlement of the sealing cover of being convenient for.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic diagram of the explosion structure of the present invention;

fig. 3 is a schematic sectional structure diagram of the present invention.

In the figure, 1, a cylinder; 11. an accommodating cavity; 12. a first guide ramp; 13. installing an outer edge; 14. a material guide hopper; 2. a piston; 21. a waist part; 211. a contact surface; 22. a head portion; 221. a cavity; 222. reinforcing ribs; 23. a gas containing groove; 3. extruding a pipe; 4. installing a pipe; 41. mounting grooves; 5. sealing the end; 51. sealing the hole; 52. a shifting sheet; 6. a sealing cover; 61. a sealing plug; 611. sealing the protrusion; 62. raising edges; 63. a hooking end; 631. a second guide ramp; 64. and pressing the groove.

Detailed Description

A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1 and fig. 2, for the utility model discloses a cylinder for adhesive, including the barrel 1 that is used for the holding gluing agent and the piston 2 that is used for pushing away the gluing agent in the barrel 1. Preferably, the barrel is made of plastic.

Referring to fig. 2 and 3, the barrel 1 is in a circular tube shape, so that an accommodating cavity 11 for accommodating an adhesive is formed in the barrel 1. The accommodating cavity 11 is arranged in a cylindrical shape, and the diameter of the accommodating cavity 11 is coincided with that of the barrel 1. Both ends of the accommodating chamber 11 are communicated with the outside.

The cylinder 1 is provided with a first guiding inclined plane 12 around the opening of one end of the accommodating cavity 11, and the first guiding inclined plane 12 inclines towards the center of the cylinder 1 along the direction close to the extrusion pipe 3.

Further, a material guide hopper 14 is integrally formed at the other end of the cylinder 1. The guide hopper 14 is provided in a conical tubular shape having an inner diameter gradually reduced to have a large end and a small end. The axis of the material guide hopper 14 is coincident with the axis of the barrel 1. The big end of the material guiding hopper 14 is fixedly connected with the cylinder 1, and the small end of the material guiding hopper 14 is far away from the cylinder 1 relative to the big end of the material guiding hopper 14. The inner diameter of the large end of the material guide hopper 14 is larger than or equal to the inner diameter of the accommodating cavity 11 so as to seal one end opening of the cylinder body 1.

An extrusion pipe 3 for sealing the small end opening is fixedly arranged on the small end of the material guide hopper 14, so that the adhesive can leave the accommodating cavity 11 from the extrusion pipe 3. The extrusion pipe 3 is arranged in a circular pipe shape. The inner diameter of the extrusion pipe 3 is less than or equal to the inner diameter of the small end of the material guide hopper 14. The axis of the extruded tube 3 coincides with the axis of the barrel 1.

Furthermore, the extruding pipe 3 is sleeved with a mounting pipe 4 fixedly connected with the material guiding hopper 14. The installation pipe 4 is arranged in a circular pipe shape, and the inner diameter of the installation pipe 4 is larger than the outer diameter of the extrusion pipe 3. The axis of the mounting tube 4 coincides with the axis of the extruded tube 3.

An installation groove 41 is formed between the installation tube 4 and the extrusion tube 3. A sealing head 5 for sealing an opening of the extrusion pipe 3 far away from the cylinder 1 is detachably arranged in the mounting groove 41. The inner wall of the mounting pipe 4 is provided with internal threads, and one end of the outer wall of the seal head 5 close to the material guide hopper 14 is provided with external threads matched with the internal threads, so that the seal head 5 is in threaded connection with the inner wall of the mounting pipe 4.

One side of the end socket 5 facing the cylinder 1 is provided with a sealing hole 51 for the extrusion pipe 3 to be embedded in. The opening of the seal hole 51 is directed only toward the cylinder 1. The axis of the seal hole 51 coincides with the axis of the cylinder 1. The diameter of the sealing hole 51 is gradually reduced in a direction away from the cylinder 1. The seal head 5 is rotated to enable the seal hole 51 to be in interference fit with the extrusion pipe 3, so that the opening of the extrusion pipe 3 is sealed, and the adhesive is prevented from leaking out of the extrusion pipe 3 in the transportation process.

Further, at least one shifting piece 52 is fixedly arranged on the outer circular surface of the end socket 5. Preferably, the number of the poking pieces 52 is two, and the two poking pieces 52 are symmetrically arranged on two sides of the axis of the sealing hole 51. Pushing force is applied to the pusher 52 to rotate the closure 5.

Referring to fig. 2 and 3, the adhesive is located at one end of the piston 2 near the extrusion tube 3. From one end of the accommodating cavity 11 far away from the extrusion tube 3, the piston 2 slides in the accommodating cavity 11 along the axial direction of the cylinder 1 in a direction toward the extrusion tube 3, so as to extrude the adhesive from the extrusion tube 3.

Specifically, the piston 2 includes a waist portion 21 abutting against the inner wall of the accommodating chamber 11 and a head portion 22 fixedly disposed on a side of the waist portion 21 close to the extrusion tube 3.

The waist 21 is arranged in a circular tube shape. The axis of the waist 21 coincides with the axis of the barrel 1. The outer circle surface of the waist portion 21 is an abutting surface 211 for abutting the waist portion 21 against the inner wall of the accommodating cavity 11. The abutting surface 211 is a curved surface protruding toward the center of the cylinder 1. Both ends of the axis direction of the outer circle surface of the waist part 21 are in interference fit with the inner wall of the accommodating cavity 11.

The head 22 is formed in a conical shape such that the middle portion of the head 22 is formed in a curved surface protruding toward the direction close to the extrusion tube 3. The end of the head 22 away from the extrusion tube 3 is opened with a conical cavity 221 communicating with the inside of the waist 21. A cross rib 222 fixedly connected with the head 22 is arranged in the cavity 221. The provision of the cavity 221 reduces the consumables required for the production of a single piston 2, reducing costs. The arrangement of the reinforcing ribs 222 effectively improves the strength of the head 22, so that the head 22 stably pushes the adhesive to be extruded.

It should be mentioned that an air accommodating groove 23 for accommodating air is formed around the connection between the waist 21 and the head 22. The air containing groove 23 is arranged in a circular ring shape, and the axis of the cylinder body 1 penetrates through the circle center of the air containing groove 23. The air-accommodating groove 23 opens only to the end of the extruded tube 3. The gluing agent is placed in holding chamber 11 and then is put into piston 2, puts into holding chamber 11 with piston 2, and piston 2 removes in holding chamber 11 in order to be close to the gluing agent gradually, and the middle part of 2 heads 22 of piston is protruding to be contradicted with the gluing agent earlier, and then piston 2 and gluing agent conflict face 211 volume use head 22 center to increase gradually as the center to the air that the messenger remained between 2 heads 22 of piston and the gluing agent is crowded into and is held gas recess 23.

Referring to fig. 2 and 3, the end of the barrel 1 remote from the extruded tube 3 has a mounting rim 13. The mounting outer edge 13 is arranged in an ellipse-like shape, and the axis of the cylinder body 1 penetrates through the center of the mounting outer edge 13.

The mounting outer edge 13 is detachably provided with a sealing cover 6. The sealing cover 6 is arranged in a similar rectangular plate shape, and one surface of the sealing cover 6 is abutted with the end surface of one side of the mounting outer edge 13, which is far away from the extrusion pipe 3. The axis of the cartridge 1 passes through the centre of the sealing cap 6.

One surface of the sealing cover 6 close to the extrusion pipe 3 is fixedly provided with a sealing plug 61 embedded into the accommodating cavity 11, and the piston 2 is positioned on one side of the sealing plug 61 close to the extrusion pipe 3. The sealing plug 61 is arranged in a cylinder, and the axis of the sealing plug 61 is coincident with the axis of the barrel 1. The sealing plug 61 is in interference fit with the inner wall of the accommodating cavity 11. Preferably, the outer circumferential surface of the sealing plug 61 is provided with a sealing protrusion 611 circumferentially therearound.

Further, a pressing groove 64 penetrating the sealing cover 6 is formed on a side of the sealing plug 61 away from the extrusion tube 3. The pressing groove 64 is provided in a cylindrical shape, and the axis of the pressing groove 64 coincides with the axis of the sealing plug 61. Pressure is applied to the pressing groove 64 to insert the sealing plug 61 into the accommodation chamber 11.

Further, two hooking ends 63 for hooking and installing the outer rim 13 are fixedly arranged on the sealing cover 6. The two hooking ends 63 are located at opposite sides of the sealing cap 6 and are hooked upward toward the center near the sealing cap 6. Preferably, the hooking end 63 has a second guiding inclined surface 631 on a side away from the sealing cover 6, and the second guiding inclined surface 631 is disposed in an arc shape.

When sealed lid 6 installs, collude the second guide inclined plane 631 who holds end 63 and contradict with the installation outer one side of keeping away from extruded tube 3 along 13, collude hold end 63 and take place elastic deformation under second guide inclined plane 631 effect in order to remove to the axis direction of keeping away from barrel 1, and back collude hold end 63 and remove towards the direction of being close to extruded tube 3 along the outer fringe face of installation outer edge 13, hold end 63 collude and hold the one side that is close to extruded tube 3 along 13 outside the installation until colluding, second guide inclined plane 631 need not to hold end 63 to colluding and exert the power of keeping away from barrel 1 axis direction when making staff use sealed lid 6, can accomplish the installation of sealed lid 6.

Further, the sealing cover 6 has a raised edge 62 at the corner, and the raised edge 62 is located at the side of the mounting outer edge 13 away from the barrel body 1. A force is applied to the raised edge 62 away from the extruded tube 3 to disengage the sealing plug 61 from the receiving cavity 11.

The implementation principle of the embodiment is as follows: head 5 and installation pipe 4 threaded connection are with the opening of sealed extruded tube 3, fill the gluing agent in toward holding chamber 11, then put into piston 2 in holding chamber 11 so that the head 22 of piston 2 compresses tightly on the gluing agent, sealing plug 61 embedding holding chamber 11 and collude hold 63 collude hold in the installation along 13 outside so that the sealed lid 6 involution barrel 1 keeps away from the opening of extruded tube 3.

The embodiments of the present invention are the preferred embodiments of the present invention, and not limited to the above, wherein the same reference numerals are used for the same components. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component. Therefore, the method comprises the following steps: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a syringe for adhesive, include barrel (1) and slide along the axis direction set up in piston (2) of barrel (1), have holding chamber (11) that are used for the holding gluing agent in barrel (1), the fixed extruded tube (3) that is provided with on the one end opening of holding chamber (11), piston (2) are sealed the other end in order to be in of holding chamber (11) slides, its characterized in that, piston (2) include waist (21) of contradicting with holding chamber (11) inner wall with fixed set up in waist (21) are close to head (22) of extruded tube (3) one side, the middle part of head (22) is towards being close to the bellied curved surface setting of extruded tube (3) direction, waist (21) with the junction of head (22) encircles and offers the gas holding recess (23) that are used for the holding air, waist (21) with conflict face (211) of holding chamber (11) be to the bellied curved surface setting in barrel (1) center, the both ends of waist (21) all with the inner wall interference fit in holding chamber (11).

2. A syringe for adhesives according to claim 1, characterized in that the opening of the receiving chamber (11) at the end remote from the extruded tube (3) is surrounded by a first guiding bevel (12), and the first guiding bevel (12) is inclined toward the center of the syringe body (1) in the direction close to the extruded tube (3).

3. The needle cylinder for the adhesives as defined in claim 1, wherein an installation tube (4) fixedly connected with the cylinder body (1) is sleeved outside the extrusion tube (3), an installation groove (41) is formed between the installation tube (4) and the extrusion tube (3), a seal head (5) used for sealing the extrusion tube (3) and keeping away from an opening on one side of the cylinder body (1) is detachably arranged in the installation groove (41), and the seal head (5) is in threaded connection with the inner wall of the installation tube (4).

4. The needle cylinder for adhesives as defined in claim 3, wherein a sealing hole (51) for inserting the extrusion tube (3) is formed in one side of the sealing head (5) facing the cylinder (1), and a diameter of the sealing hole (51) is gradually reduced along a direction away from the cylinder (1).

5. The syringe for adhesives as claimed in claim 3, wherein the outer circumferential surface of the sealing head (5) is fixedly provided with at least one pick (52).

6. The syringe for adhesives as claimed in claim 1, wherein an installation outer edge (13) is provided at one end of the barrel (1) far away from the extrusion tube (3), a sealing cover (6) is detachably provided on the installation outer edge (13), a sealing plug (61) embedded in the accommodating cavity (11) is fixedly provided on the sealing cover (6), and an outer circumferential surface of the sealing plug (61) abuts against an inner wall of the accommodating cavity (11).

7. The syringe of claim 6, wherein the sealing cap (6) has a raised edge (62), and the raised edge (62) is located on a side of the mounting rim (13) away from the barrel (1).

8. A syringe as claimed in claim 6, wherein said sealing cap (6) has two hooking ends (63) for hooking and mounting said outer rim (13), said two hooking ends (63) being located at opposite sides of said sealing cap (6) and being hooked upward toward the center of said sealing cap (6).

9. An adhesive syringe as claimed in claim 8, wherein the hooking end (63) has a second guiding slope (631) on the side away from the sealing cap (6), the second guiding slope (631) being arc-shaped.

10. A syringe as claimed in claim 8, wherein a pressing groove (64) extending through the sealing cap (6) is formed in the side of the sealing plug (61) remote from the extrusion tube (3).