CN112607421A

CN112607421A - Feeding tool suitable for glass water joint rubber ring

Info

Publication number: CN112607421A
Application number: CN202011617461.5A
Authority: CN
Inventors: 毕允托; 吴宝俊
Original assignee: Nonstandard Automation Technology Co ltd
Current assignee: Nonstandard Automation Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-04-06

Abstract

The invention relates to a feeding tool suitable for a glass water joint rubber ring. The rubber ring clamping unit comprises a first linear motion element, a second linear motion element, a force bearing plate and a material holding assembly. When the first linear motion element and the second linear motion element act, the force bearing plate is driven to perform displacement motion along the front-back direction and the up-down direction respectively. The material holding assembly is inserted on the force bearing plate so as to take materials from the preassembled rubber ring. The female seat limiting unit is fixed by the machine base and arranged right below the rubber ring clamping unit. The female seat limiting unit comprises a horizontal plate, a finger cylinder, a left clamping jaw, a right clamping jaw and a reference block. When the finger cylinder acts, the left clamping jaw is driven to move towards or away from the right clamping jaw, so that the glass water joint female seat is clamped or loosened.

Description

Feeding tool suitable for glass water joint rubber ring

Technical Field

The invention relates to the technical field of non-standard equipment manufacturing, in particular to a feeding tool suitable for a glass water joint rubber ring.

Background

When the transparency of the front windshield is reduced, clear vision can be provided for a driver by spraying glass water. Particularly, when the vehicle travels at night, dust on the glass scatters light, and at this time, a spray of glass water is required to keep the front windshield in an optimal transparent state.

The glass water joint is used for circulating glass water and comprises a female seat, a male plug, a clamping ring and a rubber ring. An assembly cavity is arranged in the female seat. The male plug is inserted into the assembly cavity and assembled with the female seat by means of a snap ring sleeved on the periphery of the female seat. The rubber ring is arranged in the assembly cavity in an embedded mode and is clamped between the female seat and the male plug. In the prior art, the assembly of the glass water joint is usually completed manually, however, the operation is time-consuming and labor-consuming, and the production efficiency is low, and for this reason, the company recently developed a line suitable for the automatic assembly of the glass water joint.

Known, if need accomplish the automatic equipment work of glass water swivel, at first need with female seat cartridge on clamping tool, borrow afterwards again by the material loading frock to get the material to the rubber circle, and place in the assembly cavity, then, assemble snap ring, public plug in place in order, accomplished glass water swivel's whole equipment operation promptly. However, in the prior art, a feeding tool suitable for a rubber ring of a glass water joint is not retrieved. Thus, a skilled person is urgently needed to solve the above problems.

Disclosure of Invention

Therefore, in view of the above-mentioned problems and drawbacks, the present invention provides a feeding tool for a rubber ring of a glass water joint, which is obtained by collecting relevant data, evaluating and considering the data in multiple ways, and continuously performing experiments and modifications by a skilled person engaged in research and development for many years.

In order to solve the technical problem, the invention relates to a feeding tool suitable for a glass water joint rubber ring, which comprises a machine base, a rubber ring clamping unit and a female base limiting unit. The rubber ring clamping unit comprises a first linear motion element, a second linear motion element, a force bearing plate and a material holding assembly. The bearing plate is arranged right in front of the base. The first linear motion element and the second linear motion element are sequentially connected between the base and the bearing plate. When the first linear motion element and the second linear motion element act, the force bearing plate is driven to perform displacement motion along the front-back direction and the up-down direction respectively. The material holding assembly is vertically inserted on the bearing plate so as to take materials from the preassembled rubber ring. The female seat limiting unit is fixed by the machine base and arranged right below the rubber ring clamping unit. The female seat limiting unit comprises a horizontal plate, a finger cylinder, a left clamping jaw, a right clamping jaw and a reference block. Just corresponding to holding the material subassembly, set up on the flat board and dodge the breach. The reference block is detachably fixed on the lower plane of the flat plate. And a tapered hole which is in positive correspondence with the position of the avoidance notch is formed in the reference block so that the material holding component can penetrate through the tapered hole to assemble the rubber ring. The left clamping jaw and the right clamping jaw are symmetrically arranged on the left side and the right side of the reference block and are driven by the finger cylinder. When the finger cylinder acts, the left clamping jaw is driven to move towards or away from the right clamping jaw, so that the glass water joint female seat is clamped or loosened.

As a further improvement of the technical scheme of the invention, the female seat limiting unit also comprises a left limiting bolt and a right limiting bolt. The left limiting bolt transversely penetrates through the left clamping jaw and is opposite to the left side wall corresponding to the reference block so as to limit the minimum swing angle of the left clamping jaw. The right limiting bolt transversely penetrates through the right clamping jaw and is opposite to the right side wall corresponding to the reference block so as to limit the minimum swing angle of the right clamping jaw.

As a further improvement of the technical scheme of the invention, the rubber ring clamping unit also comprises a locking bolt. The locking bolt is screwed on the bearing plate by means of a thread pair and is aligned with the material holding component; when the locking bolt is rotated, the material holding assembly is clamped and loosened.

As a further improvement of the technical scheme of the invention, the rubber ring clamping unit also comprises a sliding ejector block. Just corresponding to the inserting position of the locking bolt, a sliding groove extends downwards from the upper plane of the bearing plate. The sliding ejector block can be freely and slidably arranged in the sliding groove. When the locking bolt is rotated, the sliding ejector block is pushed to move oppositely to the material holding assembly until the material holding assembly is clamped and limited.

As a further improvement of the technical solution of the present invention, the first linear motion element and the second linear motion element are both preferably a slide table cylinder.

As a further improvement of the technical scheme of the invention, the holding assembly comprises a jacking pin, a sleeve, a sliding sleeve, a transverse bolt and a columnar spring. The ejector pin is freely slidably disposed within the cavity of the sleeve. The sliding sleeve can freely pass through the avoidance notch, and the lower limit position of the sliding sleeve is limited by the reference block. The cover that slides is located sheathed tube periphery, and borrows to realize dragging the liftout round pin along upper and lower direction by means of horizontal bolt, correspondingly, offers on sheathed tube lateral wall and supplies horizontal bolt looks adaptation, supplies horizontal bolt free gliding breach of sliding. The columnar spring is arranged in the cavity of the sleeve, and always applies elastic propping force to the top wall of the ejector pin.

As a further improvement of the technical scheme of the invention, the holding assembly also comprises an adjusting bolt. The adjusting bolt is screwed on the top wall of the sleeve until extending into the inner cavity of the sleeve, and always abuts against the top end of the columnar spring.

As a further improvement of the technical scheme of the invention, the material holding component also comprises a locking nut. The locking nut is arranged right above the sleeve and screwed with the adjusting bolt.

Through adopting above-mentioned technical scheme to set up, when needs hold the glass water swivel rubber circle and get, hold the material subassembly at first and move under the coordinated drive of first rectilinear motion component, second rectilinear motion component, until it with hold the glass water swivel rubber circle relative position completion of getting in advance, afterwards, second rectilinear motion secondary start holds the material subassembly with the drive and wholly moves down until the completion to holding of glass water swivel rubber circle and get. The first linear motion element and the second linear motion element act cooperatively again to drive the material holding assembly to displace until the relative position with the female seat limiting unit is completed; subsequently, the finger cylinder is started to drive the left clamping jaw to move in the opposite direction/opposite direction relative to the right clamping jaw, so that the glass water joint female seat is clamped, the glass water joint female seat is forced to be accurately aligned relative to the material holding assembly, and then the execution of the subsequent glass water joint rubber ring assembling operation is facilitated. Therefore, on one hand, good matching assistance is provided for the design and manufacture of the automatic assembly line of the glass water joint, the holding and taking efficiency of the rubber ring of the glass water joint is effectively improved, and the time consumed by the holding and taking operation is greatly reduced; on the other hand, before the rubber ring is formally assembled, the female seat limiting unit effectively ensures the alignment accuracy of the glass water joint female seat and the glass water joint rubber ring to be assembled, and is beneficial to the smooth execution of the subsequent assembly process of the glass water joint rubber ring; on the other hand, the feeding tool suitable for the glass water joint rubber ring is simple in structural design, beneficial to manufacturing and implementation and low in production cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a feeding tool suitable for a glass water joint rubber ring in the invention.

Fig. 2 is a side view of fig. 1.

Fig. 3 is an enlarged view of a portion I of fig. 1.

Fig. 4 is a schematic perspective view of a holding assembly in the feeding tool suitable for the glass water joint rubber ring.

Fig. 5 is a side view of fig. 4.

Fig. 6 is a sectional view a-a of fig. 5.

Fig. 7 is a schematic perspective view of a sleeve in the feeding tool suitable for the glass water joint rubber ring.

Fig. 8 is a schematic perspective view of a female seat limiting unit in the feeding tool suitable for the glass water joint rubber ring.

Fig. 9 is a top view of fig. 8.

Fig. 10 is a sectional view B-B of fig. 9.

Fig. 11 is a front view of fig. 8.

Fig. 12 is a cross-sectional view C-C of fig. 11.

Fig. 13 is a perspective view of a glass water joint.

Fig. 14 is an exploded view of a glass water joint.

1-a machine base; 2-a rubber ring clamping unit; 21-a first slip table cylinder; 22-a second slip table cylinder; 23-a bearing plate; 231-a slip groove; 24-a holding assembly; 241-a liftout pin; 242-a sleeve; 2421-glide gap; 243-sliding sleeve; 244-transverse bolt; 245-a cylindrical spring; 246-adjusting bolt; 247-a locking nut; 25-a locking bolt; 26-sliding the ejector block; 3-a female seat limiting unit; 31-a flat plate; 311-avoiding the gap; 32-finger cylinder; 33-left clamping jaw; 34-right clamping jaw; 35-a reference block; 351-tapered holes; 36-left position limit bolt; 37-right position limit bolt; 38-Teflon guide sleeve.

Detailed Description

In the description of the present invention, it is to be understood that the terms "left", "right", "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In order to facilitate those skilled in the art to fully understand the technical solution disclosed in the present invention, before describing the feeding tool for the rubber ring of the glass water connector in detail, a simple description is first made on the structure of the glass water connector, as shown in fig. 13 and 14, the glass water connector includes a female socket, a male plug, a rubber ring and a snap ring. The female seat, the male plug, the rubber ring and the clamping ring are all injection-molded parts. An assembly cavity is arranged in the female seat. The male plug is inserted into the assembly cavity and assembled with the female seat by means of a snap ring sleeved on the periphery of the female seat. The rubber ring is arranged in the assembly cavity in an embedded mode and is clamped between the female seat and the male plug.

The following describes the content of the present invention in further detail with reference to specific embodiments, and fig. 1 shows a schematic perspective view of a feeding tool suitable for a glass water joint rubber ring in the present invention, which is known to be composed of a machine base 1, a rubber ring clamping unit 2 and a female seat limiting unit 3. As shown in fig. 2, the rubber ring clamping unit 2 includes a first sliding table cylinder 21, a second sliding table cylinder 22, a force bearing plate 23, and a material holding assembly 24. The bearing plate 23 is arranged right in front of the machine base 1. The first sliding table cylinder 21 and the second sliding table cylinder 22 are sequentially connected between the machine base 1 and the bearing plate 23. When the first sliding table cylinder 21 and the second sliding table cylinder 22 act, the force bearing plate 23 is driven to perform displacement motion along the front-back direction and the up-down direction respectively. The material holding assembly 24 is vertically inserted on the bearing plate 23 to carry out material taking operation on the preassembled rubber ring. As shown in fig. 8, 9, 10, the female holder spacing unit 3 is fixed by the housing and is disposed right below the rubber ring holding unit 2. The female seat limiting unit 3 comprises a horizontal plate 31, a finger cylinder 32, a left clamping jaw 33, a right clamping jaw 34 and a reference block 35. Just corresponding to the material holding assembly 24, an avoiding notch 311 is formed on the flat plate 31. The reference block 35 is detachably fixed to the lower plane of the flat plate 31. A tapered hole 351 corresponding to the position of the avoiding notch 311 is formed in the reference block 35, so that the material holding assembly 24 can pass through the tapered hole to assemble the rubber ring. The left and right clamping

jaws

33 and 34 are symmetrically arranged on the left and right sides of the reference block 35 and are simultaneously driven by the finger cylinder 32. When the finger cylinder 32 acts, the left clamping jaw 33 is driven to move towards/away from the right clamping jaw 34, so that the glass water joint female seat is clamped/loosened. Therefore, on one hand, good matching assistance is provided for the design and manufacture of the automatic assembly line of the glass water joint, the holding and taking efficiency of the rubber ring of the glass water joint is effectively improved, and the time consumed by the holding and taking operation is greatly reduced; on the other hand, before the rubber ring is formally assembled, the female seat limiting unit 3 effectively ensures the alignment accuracy of the glass water joint female seat and the glass water joint rubber ring to be assembled, and is beneficial to the smooth execution of the subsequent assembly process of the glass water joint rubber ring; on the other hand, the feeding tool suitable for the glass water joint rubber ring is simple in structural design, beneficial to manufacturing and implementation and low in production cost.

The working principle of the feeding tool suitable for the glass water joint rubber ring is as follows: when the glass water joint rubber ring needs to be held and taken, the holding assembly 24 moves under the synergistic effect of the driving forces of the first sliding table cylinder 21 and the second sliding table cylinder 22 until the glass water joint rubber ring is opposite to the glass water joint rubber ring which is held and taken in advance, and then the second sliding table cylinder 22 is started for the second time to drive the holding assembly 24 to integrally move downwards until the holding and taking of the glass water joint rubber ring is completed. The first sliding table cylinder 21 and the second sliding table cylinder 22 act in a coordinated manner again to drive the material holding assembly 24 to displace until the relative position with the female seat limiting unit 3 is completed; subsequently, the finger cylinder 32 is started to drive the left-placing clamping jaw 33 to move towards/away from the right-placing clamping jaw 34, so as to clamp the glass water connector female seat, force the glass water connector female seat to be accurately aligned relative to the material holding assembly 24, and further facilitate the execution of the subsequent glass water connector rubber ring assembling operation.

It should be noted that, in addition to the first slide cylinder 21 and the second slide cylinder 22 described above for performing displacement driving on the material holding assembly 24, other linear motion elements such as a linear cylinder, a linear hydraulic cylinder, or a linear motor may be selected according to different application scenarios.

As is known, when the power value output by the finger cylinder 32 exceeds the standard, the left-hand clamping jaw 33 and the right-hand clamping jaw 34 are very easy to crush the side wall of the female seat of the glass water joint, and a large amount of manpower and material resources are required to be subsequently input for repairing, in view of this, as shown in fig. 8, 9 and 10, the female seat limiting unit 3 may further include a left-hand limiting bolt 36 and a right-hand limiting bolt 37 according to actual conditions. The left limiting bolt 36 crosses the left clamping jaw 33 and is opposite to the left side wall corresponding to the reference block 35 so as to limit the minimum swinging angle of the left clamping jaw 33. The right limiting bolt 37 crosses the right clamping jaw 34 and is opposite to the right side wall corresponding to the reference block 35 so as to limit the minimum swinging angle of the right clamping jaw 34. Therefore, by rotating the left-position limiting bolt 36 and the right-position limiting bolt 37, the minimum swing angle of the left-position clamping jaw 33 and the right-position clamping jaw 34 can be correspondingly limited, so as to avoid the occurrence of the phenomenon that the side wall of the glass water joint female seat is damaged by pressure.

As can be seen from fig. 3, the material holding assembly 24 is preferably detachably fixed to the force bearing plate 23, so that the material holding assembly 24 can be replaced integrally when the signal and the size of the preassembled rubber ring are changed. The specific implementation is recommended as follows: the rubber ring clamping unit 2 further comprises a locking bolt 25. The locking bolt 25 is directly screwed on the bearing plate 23 by means of a thread pair and is aligned with the holding component 24. When the locking bolt 25 is screwed, the material holding assembly 24 is clamped and loosened.

As is known, when the locking bolt 25 directly abuts against the material holding assembly 24, the side wall of the material holding assembly 24 is easily damaged by pressure, and in view of this, as a further optimization of the technical solution of the present invention, the rubber ring clamping unit 2 may further be provided with a sliding ejector block 26. A sliding groove 231 is extended downwards from the upper plane of the bearing plate 23 corresponding to the inserting position of the locking bolt 25. The sliding ejector block 26 is freely slidably disposed in the sliding groove 231 (as shown in fig. 1 and 3). When the locking bolt 25 is screwed, the sliding pushing block 26 is pushed to move towards the holding component 24 until the clamping limit of the holding component 24 is realized. An arc-shaped pushing top surface matched with the outer diameter of the material holding component 24 is arranged on the sliding pushing top block 26. Compared with the ejector end of the locking bolt 25, the sliding ejector block 26 has a larger ejector area, and on the premise that the ejector force is determined, the pressure stress on the outer side wall of the material holding component 24 is smaller, which is more beneficial to ensuring the integrity of the outer side wall of the material holding component 24.

As is known, the material holding assembly 24 can adopt various design structures to realize the material taking operation of the rubber ring, which is inconvenient, and an embodiment with simple design structure and low manufacturing cost is recommended here, and as shown in figures 4, 5, 6 and 7, the material holding assembly 24 preferably comprises an ejecting pin 241, a sleeve 242, a sliding sleeve 243, a transverse bolt 244 and a columnar spring 245. The ejector pin 241 is freely slidably disposed within the cavity of the sleeve 242. The sliding sleeve 243 can freely pass through the escape notch 311, and its lower limit position is defined by the reference block 35. The sliding sleeve 243 is sleeved on the periphery of the sleeve 242, and the ejector pin 241 is pulled in the up-down direction by the transverse bolt 244, and correspondingly, a sliding notch 2421 for the transverse bolt 244 to fit with and slide freely is formed on the side wall of the sleeve 242. A cylindrical spring 245 is built into the cavity of the sleeve 242 and always exerts an elastic abutting force against the top wall of the ejector pin 241.

When the material holding assembly 24 is unloaded, the first sliding table cylinder 21 is used for driving the material holding assembly 24 to move right above the avoidance notch 311, and the second sliding table cylinder 22 acts for driving the material holding assembly 24 to move downwards integrally until the sliding sleeve 243 is abutted by the reference block 35, namely the lower limit relative positions of the sliding sleeve 243 and the ejector pin 241 are limited; due to the existence of the sliding notch 2421, the sleeve 242 moves downwards to the limit to remove the rubber ring from the ejector pin 241, and then the sleeve 242 continues to push the rubber ring to move downwards in the tapered hole 351, and meanwhile, the rubber ring is subjected to the action of the abutting force of the side wall of the tapered hole 351 to be adaptively deformed and is smoothly inserted into the assembly cavity of the glass water joint female seat.

As can also be seen from fig. 11 and 12, a teflon guide sleeve 38 may be further added in the tapered hole 351, that is, the rubber ring is directly adaptively shrunk in the teflon guide sleeve 38. As is known, the teflon material has the characteristics of extremely low friction coefficient and high temperature resistance, so that the application of the teflon guide sleeve 38 can effectively reduce the friction force on the rubber ring in the sliding process, thus, on one hand, ensuring that the rubber ring assembling process is executed more smoothly, and further being beneficial to reducing the assembling time; on the other hand, the rubber ring is prevented from being worn in the assembling process, and the glass water joint is ensured to have good sealing performance after being assembled.

It is known that the pre-compression amount of the cylindrical spring 245 has a crucial influence on the operation function of the material holding assembly 24, and it needs to be adjusted according to the type and material of the assembled rubber ring. In view of this, as shown in fig. 4, 5 and 6, the holding assembly 24 may further be added with an adjusting bolt 246. The adjusting screw 246 is screwed onto the top wall of the sleeve 242 until it extends into the inner cavity of the sleeve 242 and always abuts against the top end of the cylindrical spring 245. When the pre-compression amount of the cylindrical spring 245 needs to be adjusted, the adjusting bolt 246 is rotated, and the whole operation process is convenient and quick.

Finally, it should be noted that, as shown in fig. 6, a locking nut 247 is further added to the holding assembly 24. A lock nut 247 is disposed directly above the sleeve 242 and is threadedly engaged with the adjustment bolt 246. The existence of the locking nut 247 can effectively prevent the adjusting bolt 246 from loosening relative to the sleeve 242 due to the action of the exciting force in the practical application process.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A feeding tool suitable for a glass water joint rubber ring is characterized by comprising a machine base, a rubber ring clamping unit and a female base limiting unit; the rubber ring clamping unit comprises a first linear motion element, a second linear motion element, a bearing plate and a holding component; the bearing plate is arranged right in front of the base; the first linear motion element and the second linear motion element are sequentially connected between the base and the bearing plate; when the first linear motion element and the second linear motion element act, the force bearing plate is driven to perform displacement motion along the front-back direction and the up-down direction respectively; the material holding assembly is vertically inserted on the bearing plate so as to take materials from the preassembled rubber ring; the female seat limiting unit is fixed by the machine seat and is arranged right below the rubber ring clamping unit; the female seat limiting unit comprises a horizontal plate, a finger cylinder, a left clamping jaw, a right clamping jaw and a reference block; just corresponding to the material holding assembly, an avoidance notch is formed in the flat plate; the reference block is detachably fixed on the lower plane of the horizontal plate; a tapered hole which is in positive correspondence with the position of the avoidance notch is formed in the reference block, so that the material holding assembly can penetrate through the tapered hole to assemble the rubber ring; the left clamping jaw and the right clamping jaw are symmetrically arranged on the left side and the right side of the reference block and are driven by the finger cylinder; when the finger cylinder acts, the left clamping jaw is driven to move oppositely/reversely relative to the right clamping jaw, so that the glass water connector female seat is clamped/loosened.

2. The feeding tool suitable for the glass water joint rubber ring as claimed in claim 1, wherein the female seat limiting unit further comprises a left limiting bolt and a right limiting bolt; the left limiting bolt transversely penetrates through the left clamping jaw and is opposite to the left side wall corresponding to the reference block so as to limit the minimum swinging angle of the left clamping jaw; the right limiting bolt penetrates through the right clamping jaw and is opposite to the right side wall corresponding to the reference block so as to limit the minimum swing angle of the right clamping jaw.

3. The feeding tool suitable for the glass water joint rubber ring as claimed in claim 1, wherein the rubber ring clamping unit further comprises a locking bolt; the locking bolt is screwed on the bearing plate by means of a thread pair and is aligned with the material holding assembly; when the locking bolt is screwed, the material holding assembly is clamped and loosened.

4. The feeding tool suitable for the glass water joint rubber ring as claimed in claim 3, wherein the rubber ring clamping unit further comprises a sliding ejector block; a sliding groove extends downwards from the upper plane of the bearing plate just corresponding to the inserting position of the locking bolt; the sliding ejector block can be freely and slidably arranged in the sliding groove; when the locking bolt is screwed, the sliding ejector block is pushed to move oppositely to the holding component until the holding component is clamped and limited.

5. The feeding tool suitable for the glass water joint rubber ring as claimed in claim 1, wherein the first linear motion element and the second linear motion element are both sliding table cylinders.

6. The feeding tool suitable for the glass water joint rubber ring according to any one of claims 1 to 5, wherein the holding assembly comprises a jacking pin, a sleeve, a sliding sleeve, a transverse bolt and a cylindrical spring; the ejector pin is freely and slidably arranged in the cavity of the sleeve; the sliding sleeve can freely pass through the avoidance notch, and the lower limit position of the sliding sleeve is limited by the reference block; the sliding sleeve is sleeved on the periphery of the sleeve, the ejector pin is pulled in the vertical direction by the aid of the transverse bolt, and correspondingly, a sliding notch for the transverse bolt to adapt to and freely slide is formed in the side wall of the sleeve; the cylindrical spring is arranged in the cavity of the sleeve, and always exerts an elastic propping force towards the top wall of the liftout pin.

7. The feeding tool suitable for the glass water joint rubber ring as claimed in claim 6, wherein the material holding assembly further comprises an adjusting bolt; the adjusting bolt is screwed on the top wall of the sleeve until extending into the inner cavity of the sleeve and always abuts against the top end of the columnar spring.

8. The feeding tool suitable for the glass water joint rubber ring as claimed in claim 7, wherein the material holding assembly further comprises a locking nut; the locking nut is arranged right above the sleeve and screwed with the adjusting bolt.