JP3204589B2 - Paste supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paste supply device for appropriately supplying a paste contained in a container whose main part is formed of a flexible material.

[0002]

2. Description of the Related Art As is well known to those skilled in the art, a dental silicone rubber impression material is composed of a base paste mainly composed of a silicone having a Si--H group and a silicone having a vinyl group, and a silicone and platinum having a vinyl group. A dental alginate-based impression material is produced by kneading a hardener paste mainly composed of a catalyst, and a dental alginate-based impression material is obtained by kneading a base paste mainly composed of alginic acid and a hardener paste mainly composed of gypsum. Generated by summing. Furthermore, other dental polyether rubber impression materials, dental thiochol rubber impression materials, and the like are also produced by kneading two types of pastes. As a paste supply device that can be effectively used for such kneading, a paste supply device in which two receiving portions are provided in a housing and a container support mechanism is provided in association with each of the receiving portions. Proposed and put to practical use. The two container supporting mechanisms support a container containing the base paste and a container containing the hardener paste, respectively, and the mouth and neck of the two containers are connected to the two receiving portions, respectively. In the housing, suction means is provided in association with each of the two receiving portions, and kneading means is provided. The base material paste is sucked from the mouth and neck of the container connected to the one receiving part by the action of the suction means, and the hardener paste is drawn from the mouth and neck of the container connected to the other receiving part by the action of the suction means. The base paste and the curing agent paste are kneaded by a kneading means, and are discharged from a discharge port provided on the front surface of the housing.

[0003] A container for accommodating the base paste and the curing agent paste includes a relatively rigid mouth and neck formed of a suitable synthetic resin such as polyethylene or polypropylene, and a suitable synthetic resin sheet such as a polyethylene sheet or film. A container in the form of a flexible body, which may be a film, is advantageously used. Such a container is preferably mounted on the container support mechanism in an inverted state, that is, with the main part extending upward from the mouth and neck with the mouth and neck down, and the mouth and neck connected to the receiving part.

[0004]

When the suction means provided in the housing is operated, the paste contained in the container flows out of the mouth and neck to receive the paste and the suction means. To the mixing means. The paste contained in the main part of the container flows gradually toward the mouth and neck in response to the outflow of the paste from the container, and the main part of the container is located at its closed end (ie, on the opposite side of the mouth and neck). When gradually squeezed from the (closed end), the paste in the container is supplied to the kneading means sufficiently well without causing any problem. However, according to the inventor's experience,
In particular, when the so-called yield value of the paste is relatively large, the paste contained in the main part of the container does not move downward over the whole, and only the paste on the cervix-cervical side from the specific site is in the cervix. , And the paste on the closed end side of the specific portion often stays without flowing. Then, due to the occurrence of such a phenomenon, the main part of the container is locally squeezed at a specific site and a blockage occurs, and the paste present on the closed end side from the site is directed toward the mouth and neck. It tends to be unable to flow.

The present invention has been made in view of the above-mentioned facts, and a technical problem thereof is that a specific portion of a main part of a container is closed locally by squeezing paste by leaving paste on the closed end side. The present invention provides a new and improved paste supply device in which the generation of a paste is sufficiently reliably prevented.

[0006]

In order to achieve the above technical object, according to the present invention, there is provided a container which is movable along a main part of a container supported by a container supporting mechanism and is expanded by a contained paste. The movement in the direction toward the mouth and neck is prevented by being interfered by the main part of the container maintained in the protruding state, but in accordance with the outflow from the mouth and neck of the paste contained in the main part of the container. A squeezing member is provided that moves in a direction toward the mouth and neck while squeezing the main part of the container.

That is, according to the present invention, as a paste supply device for achieving the above technical object, there is provided a housing provided with a receiving portion, a mouth and neck portion, and a main portion formed of a flexible material. And a container supporting mechanism for supporting the container accommodating the paste by connecting the mouth and neck thereof to the receiving portion, and the main part of the container supported by the container supporting mechanism. Along the main body of the container, which is maintained in a swelling state by the contained paste, and is prevented from moving in the direction toward the mouth and neck. A paste supply device is provided, wherein a throttle member that moves in a direction toward the mouth and neck while squeezing a main portion of the container in response to outflow from the mouth and neck is provided.

Conveniently, the container is supported with the main part extending upward with the mouth and neck connected to the receiving part downward. Preferably, the throttle member is movably mounted on a rod extending along a main portion of the container supported by the container support mechanism, and is biased by its own weight in a direction toward the mouth and neck. A detector that detects when the diaphragm member moves to a predetermined position in a direction toward the mouth and neck can be provided.

[0009]

In the paste supply device of the present invention, the main part of the container is squeezed gradually from the closed end toward the mouth and neck portion in response to the outflow of the paste from the container by the pressing action of the squeezing member. The whole paste in the container is gradually moved downward. Therefore, it is possible to reliably prevent the specific portion of the main portion of the container from leaving the paste on the closed end side thereof and being locally squeezed to cause blockage. Further, by detecting that the squeezing member has moved to a predetermined position by the detector, it is possible to detect that the paste in the container is almost consumed, and to perform suction after the paste in the container is exhausted. Can be reliably prevented from causing undesirable phenomena such as air suction.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a fluid supply device constructed in accordance with the present invention will be described below in more detail with reference to the accompanying drawings.

FIG. 1 illustrates a preferred embodiment of the paste supply apparatus of the present invention, which may be suitably used to produce a dental impression material. The paste supply device includes a housing indicated by reference numeral 2 as a whole. The housing 2 includes a substantially rectangular parallelepiped main part 4 and a protruding part 6 projecting upward and forward from the main part 4. On the upper surface of the main part 4 of the housing 2, two receiving parts 10 are arranged at intervals in the lateral direction, and two container supporting mechanisms 12 are also associated with the two receiving parts 10. It is arranged. A container 14 having a main portion 16 and a mouth-neck portion 18 is attached to each of the container support mechanisms 12, and the mouth-neck portion 18 of the container 14 is connected to the receiving portion 10. The receiving unit 10, the container support mechanism 12, and the container 14 will be described in further detail later. In the housing 2, together with suction means (not shown) such as two suction pumps disposed in association with each of the two receiving portions 10, and mixing means such as a static mixer or a dynamic mixer. (Not shown) are provided. An inclined surface 20 is formed on the front surface of the protrusion 6 of the housing 2 so as to incline backward and downward. A discharge portion 22 that inclines downward and protrudes forward is formed on the inclined surface 20. It is attached. The suction means and the kneading means provided in the housing 2 do not constitute a novel feature in the illustrated paste supply device constructed according to the present invention, and may themselves be of a known form, Therefore, the description of the details of these configurations is omitted in this specification.

In the paste supply apparatus as described above, for example, a container 14 containing a base material paste is mounted on one of the two container support mechanisms 12, and a container 14 containing a hardener paste is provided on the other. Be attached. And
The paste is sucked from the two containers 14 by the action of the suction means provided in the housing 2, and is supplied to the kneading means provided in the housing 2. The kneading means kneads the pastes fed from the two containers 14 to produce a dental impression material, and passes the impression material through a discharge path in a discharge portion 22 provided on the front surface of the housing 2. The paper is discharged from a discharge port formed at the tip of the discharge part 22.

Referring to FIG. 1 and FIGS. 2 and 3, each of the two receiving portions 10 is constituted by a receiving block 24 fixed to the upper surface of the main portion 4 of the housing 2. A through opening 26 is formed at the center of each of the receiving blocks 24. The cross-sectional shape of the through-opening 26 may be circular. An O-ring 28 for sealing is provided at the upper end of the through opening 26.

Each of the two container support mechanisms 12 disposed in relation to the two receiving portions 10 includes a bracket member 30 fixed to the upper surface of the main portion 4 of the housing 2. Each of the bracket members 30 disposed adjacent to and behind the receiving block 24 is provided with a flat base 3.
2, a pair of upright walls 34 extending upward from a rear portion of the base 32 at a lateral interval, and a contact piece 36 provided at a front portion of the base 32. A support frame 40 is provided between a pair of upright walls 34 of the bracket member 30 via a pivot shaft 38.
Is mounted so as to be free to turn. The support frame 40 includes a lower member 42, a rod member 44, and an upper member 46. The lower end of a rod member 44 formed of a straight bar extending straight is fixed to the lower member 42, and the upper end is fixed to the upper member 46. The pivot shaft 38 extends substantially horizontally through the lower member 42 of the support frame 40 together with the pair of upright walls 34 of the bracket member 30, and the support frame 40 is shown by a solid line in FIG. It is mounted so as to be pivotable about a pivot axis (that is, the central axis of the pivot shaft 38) extending substantially horizontally between the operation position indicated by the dashed line and the attachment / detachment operation position indicated by the two-dot chain line in FIG. Have been. In the operation position, the rod member 44 of the support frame 40 extends substantially vertically, and in the attachment / detachment operation position, the rod member 44 of the support frame 40 is 20 degrees ≦ α ≦ 70 degrees, particularly 30 degrees.
The angle is inclined upward and rearward (therefore in the direction away from the receiving part 10) at an inclination angle α preferably in the range of degree ≦ α ≦ 60 degrees. As can be clearly seen from FIG. 3, the abutment piece 36 is inverted L-shaped and extends upward and then substantially horizontally rearward. Abutment piece 36
An opening 48 is formed at the center in the width direction of the portion extending substantially horizontally. Base 32 of bracket member 30
Is provided with a detection means 50. This detecting means 50
Is composed of a microswitch having a detection arm projecting upward through the opening 48. Support frame 4
The lower member 42 has a substantially inverted L-shaped main part, a contact surface 52 is formed on the lower surface of the front part of the main part, and a contact surface 54 (FIG. 2) is formed on the lower part of the rear surface. I have. When the support frame 40 is moved to the operation position, the contact surface 52 comes into contact with the upper surface of the contact piece 36, and therefore, the support frame 40 is prevented from further turning counterclockwise in FIG. The support frame 40 is held in the above-mentioned working position by its own weight. Further, the contact surface 52 acts on the detection arm of the micro switch constituting the detection means 50, and thus the detection means 5 detects that the support frame 40 has been moved to the operation position.
0 is detected. The detection signal of the detection means 50 is sent to a control means (not shown) which can be constituted by a microcomputer, and only when the detection means 50 generates the detection signal, the operation of the apparatus (ie, the suction described above) Means and operation of the mixing means) are permitted. When the support frame 40 is moved to the mounting / dismounting operation position, the contact surface 54 comes into contact with the upper surface of the base 32 of the bracket member 30, and thus the support frame member 40 is prevented from further turning clockwise in FIG. 2. The support frame 40 is held at the mounting operation position by its own weight. If desired, support frame 4
Appropriate locking means for releasably locking the 0 to the working position and / or the mounting operation position may be provided.

Continuing the description with reference to FIGS. 2 and 3,
At the front of the lower member 42 of the support frame 40, the container 14
The mouth-and-neck holding means 56 for detachably holding the mouth-and-neck portion 16 is provided. As clearly illustrated in FIG.
The lower member 42 has a protruding plate-like portion extending forward, and an opening 58 is formed in the protruding plate-like portion. The opening 58 is formed in a laterally outer edge of the semicircular portion and a width corresponding to its diameter in the lateral direction of the protruding plate portion (in the container support mechanism 12 located on the right side in FIG. The container support mechanism 12 has a rectangular shape extending to the left edge of the protruding plate-like portion). A locking groove 60 extending over the entire inner surface is formed on the inner surface defining the opening 58.

As shown in FIGS. 1 and 2, the support frame 4
The main part holding means 62 for detachably holding the closed end of the main part 16 of the container 14 (that is, the closed end located on the opposite side to the mouth and neck part 18) is provided at the front part of the upper member 46. Are arranged. The upper member 46 is formed with a pair of projecting wall portions 66 projecting forward and then hanging downward,
A holding member 70 is mounted between the pair of projecting wall portions 66. Short axes 72 projecting substantially horizontally are integrally formed on both lateral sides of the holding member 70, and each of the short axes 72 is rotatably mounted on each of the pair of projecting wall portions 66,
Thus, the holding member 70 is pivotally mounted between the working position shown by the solid line in FIG. 2 and the non-working position shown by the two-dot chain line in FIG. 2 with the central axis of the short shaft 72 as the pivot axis. FIG.
As is clearly shown in FIG. 3, when the holding member 70 is in the operating position, the substantially flat clamping surface 74 of the holding member 70 is brought into close proximity to and substantially with the front surface 76 of the base wall 64. They are located in parallel. When the holding member 70 is moved to the inoperative position, a considerable gap is formed between the holding member 70 and the front surface 76 of the base wall 64.

Referring to FIGS. 1 to 3, the container 14, which may be in a known form per se, has a main part 1 as described above.
6 and the mouth and neck 18. The main part 16 is formed in a bag shape from a flexible material which may be an appropriate synthetic resin sheet or film such as a polyethylene sheet or film. on the other hand,
The mouth and neck 18 is formed by injection or compression molding from a suitable synthetic resin such as polyethylene or polypropylene, and is relatively rigid. The mouth-neck portion 18 has a substantially cylindrical shape, is connected to the center of one end of the main portion 16, and communicates with the inside of the main portion 16. An annular flange 78 and a male thread 80 are formed on the outer peripheral surface of the mouth and neck portion 18. The thickness of the annular flange 78 corresponds to the width of the locking groove 60 of the mouth and neck holding means 56 described above. Such a container 14 contains, for example, a base material paste or a curing agent paste. Before the container 14 is mounted on the container support mechanism 12 as described below, the mouth and neck 1
A lid (not shown) having a female thread to be screwed into the male thread 80 is attached to 8, and the mouth and neck portion 18 is closed.

Continuing the description with reference to FIGS. 1 and 2,
It is important that a throttle member 82 is provided in each of the container support mechanisms 12. The throttle member 82 in the illustrated embodiment is formed of a material having a relatively high specific gravity such as steel, and has a disk shape in which a circular opening through which the rod 44 penetrates is formed at the center. The aperture member 82
Is movably fitted along the rod 44 (and thus along the main portion 16 of the container 14 supported by the container support mechanism 12) and is moved downwardly (and thus the container support) by its own weight. Container 1 supported by mechanism 12
4 (towards the mouth and neck 18). If desired, a stop member 82 of any other suitable shape, such as a rectangle having a circular opening through the rod 44 in the center, can be used, and also in addition to or instead of its own weight. Appropriate elastic biasing means such as a spring member for biasing the throttle member 82 in the direction toward the mouth / neck portion 18 may be provided. In connection with the throttle member 82, a detection means 84 which can be constituted by a microswitch having a detection arm projecting upward is provided on the rear upper surface of the lower member 42 in each of the container support mechanisms 12. I have. The operation of the aperture member 82 and the detecting means 84 will be described later.

In the paste supply apparatus as described above, the container 14 can be mounted on the container support mechanism 12 by the following procedure. First, the support frame 40
Is shown in FIG. 2 by a two-dot chain line and in FIG. 3 by a solid line. Then, the throttle member 82 fitted on the rod 44 is moved to the uppermost end of the rod 44 and held there. Next, the holding member 70 of the main part holding means 62 is maintained in a state where the holding member 70 is turned to the non-operating position shown by the two-dot chain line in FIG.
Is inserted into the gap between the holding member 70 and the front surface 76 of the base wall 64, and then the holding member 7
0 is turned to the operating position indicated by the solid line in FIG. Thus, as can be clearly understood by referring to FIG. 2, the closed end of the main portion 16 of the container 14 is compressed and pinched between the fastening surface 74 of the holding member 70 and the front surface 76 of the base wall portion 64. Is done. The closed end of the main part 16 of the container 14 is compressed to
The holding member 70 is sufficiently securely maintained in the operative position to hold the closed end of the main portion 16 of the container 14 because the clamping surface 74 of the container 14 extends substantially parallel to the front surface 76 of the base wall portion 64.
If desired, a suitable locking means for releasably locking the holding member 70 in the operating position can be provided. Further, a material having a high coefficient of friction and elasticity such as a rubber plate may be attached to the fastening surface 74 of the holding member 70 and / or the front surface 76 of the base wall portion 64. Subsequent to or prior to the holding of the closed end of the main portion 16 of the container 14 by the main portion holding means 62, the annular flange 78 formed on the mouth and neck portion 18 of the container 14 is attached to the mouth and neck holding means 56. Lock groove 6
The mouth and neck 18 of the container 14 is inserted into the opening 58 of the mouth and neck holding means 56. So,
Since the annular flange 78 is locked in the locking groove 60, the mouth and neck 18 is prevented from moving in the direction of the central axis with respect to the mouth and neck holding means 56, and the mouth and neck 16 is sufficiently securely held. Is done. The opening 58 in which the locking groove 60 is formed is opened in the direction of the pivot axis of the support frame 40, that is, in the container support mechanism 12 located on the right side in FIG. Container support mechanism 1 located
2 is open to the left side edge of the protruding plate-shaped portion and is closed in a direction perpendicular to the pivot axis, so that when the support frame 40 is pivoted, the mouth-neck portion 1 of the container 14 is rotated.
There is no possibility that the hook 8 is accidentally detached from the locking groove 60. FIG.
The container 1 is placed on the support frame 40 in the state where it is set in the attachment / detachment operation position shown by the two-dot chain line and shown by the solid line in FIG.
4 is mounted as required, the container 14
Along the rod member 44 of the housing 2 and upward from the mouth and neck portion 18, that is, in the direction away from the receiving portion 10 formed in the main portion 4 of the housing 2, 20 degrees ≦ α ≦ 70
Degrees, in particular 30 ° ≦ α ≦ 60 °, preferably at an inclination angle α. Container 1 by main part holding means 62
Operation for Holding Closed End of Main Part 16 of Fourth and Mouth / Neck Holding Means 56
The holding operation of the mouth and neck portion 18 of the container 14 by the
Can be carried out in a state where it is set to the attaching / detaching operation position, so that one operator can carry out the task easily and quickly.

Thereafter, the lid (not shown) is detached from the mouth and neck 18 of the container 14, the mouth and neck 18 are opened, and the support frame 40 is shown by a solid line in FIG. Swivel to the operating position indicated by the dashed line. As can be clearly understood with reference to FIGS.
When the operator turns 0 to the operating position, the detecting means 50 detects this as described above and generates a signal, and the tip of the mouth and neck 18 of the container 14 mounted on the support frame 40 is Receiving part 1 arranged on the upper surface of main part 4
The O-ring 28 is inserted into the through-opening 26 of the first opening and the O-ring 28 disposed in the through-opening 26 is brought into close contact with the outer peripheral surface of the distal end portion of the mouth-and-neck portion 18. A state is established in which it can be sucked into the housing 2 through the ten through openings 26. 1 and 2, when the support frame 40 is in the operative position, the container 14 is moved upwardly along the rod member 44 from the mouth and neck 18 connected to the receiving portion 10 and thus substantially. Extends vertically upwards.

As can be clearly seen from FIG.
Although the squeezing member 82 fitted in the container 4 is biased downward by its own weight, it is interfered by the main portion 16 which is maintained in an expanded state by the paste contained in the main portion 16 of the container 14. This prevents its downward movement, and thus, when a large amount of paste is stored in the main portion 16 of the container 14, it is located at the position shown by the solid line in FIG. When the paste contained in the main portion 16 of the container 14 is gradually discharged from the mouth and neck portion 18 by the suction action of the suction means (not shown) provided in the housing 2, Accordingly, the throttle member 82 gradually descends toward the mouth and neck portion 18. And
The lowering of the squeezing member 82 causes the main part 1
6 is gradually squeezed from its upper end, that is, the closed end, toward the mouth and neck portion 18, and the paste contained in the main portion 16 is caused to flow gradually downward as a whole. When approximately half of the paste contained in the main portion 16 of the container 14 is allowed to flow out of the mouth and neck portion 18, the main portion 16 of the container 14 is in the state shown by the two-dot chain line 16A in FIG. 82 is FIG.
At the position indicated by the two-dot chain line 82A. When most of the paste contained in the main portion 16 of the container 14 is allowed to flow out of the mouth and neck portion 18, the main portion 16 of the container 14 is in a state shown by a two-dot chain line 16B in FIG.
Is lowered to a position indicated by a two-dot chain line 82B in FIG. 2, that is, a position near the lower end of the rod 44. When the diaphragm member 82 descends to the position indicated by the two-dot chain line 82B in FIG. 2, the diaphragm member 82 acts on the detection arm of the detecting means 84, and the diaphragm member 82 descends to a position near the lower end, in other words, the container. The fact that the paste in 14 is almost used is detected by the detecting means 8.
4 generates a signal upon detection. The signal generated by the detecting means 84 is sent to the above-mentioned control means (not shown), which disables the operation of the paste supply device.
Also, if necessary, warning means (not shown) such as a warning lamp for urging the user to replace the container 14 with a new one is activated.

The container 1 mounted on the container support mechanism 12
When replacing 4, the support frame 40 is again turned to the attachment / detachment operation position shown by the two-dot chain line in FIG. 2 and the solid line in FIG.
Then, the holding member 70 of the main part holding means 62 is turned to the non-operating position shown by the two-dot chain line in FIG. 2 so that one end of the main part 16 of the container 14 is detached from the main part holding means 62 and the opening of the container 14 is opened. By moving the neck 18 laterally outward, it is disengaged from the mouth and neck holding means 56, thus disengaging the container 14 from the container support mechanism 12.

In the embodiment described above, the housing 2
Although two receiving parts 10 are provided in the apparatus and two container supporting mechanisms 12 are provided, the present invention is also applied to a paste supply apparatus in which the receiving part 10 and the container supporting mechanism 12 are each single. It goes without saying that it can be applied.
In the above-described embodiment, the diaphragm member 82 is
Detecting that the paste in the container 14 has almost been used is detected by detecting that the paste has dropped to the position indicated by the two-dot chain line 82B, but instead or in addition to this, By detecting that the main portion 16 of the container 14 is in the state shown by the two-dot chain line 16B in FIG. 2 by an appropriate detecting means such as a micro switch or an optical switch, the paste in the container 14 is almost used. Can also be detected. Further, the paste supply device of the present invention can be conveniently applied to supply of any paste. In particular, a mode in which two receiving portions are provided in a housing and two container support mechanisms are provided. Is suitable for mixing and supplying the two-component paste-type impression material such as the dental silicone rubber impression material, the dental polyether rubber impression material, the dental thiochol rubber impression material, and the dental alginate-based impression material. Can be used.

[0024]

According to the paste supply apparatus of the present invention,
A specific portion of the main part of the container is sufficiently effectively prevented from leaving the paste on the closed end side and being locally squeezed, and substantially all of the paste contained in the main part of the container is removed. It can be drained from the mouth and neck sufficiently well. Further, by detecting by the detector that the squeezing member has moved to the predetermined position, it is possible to reliably detect that the paste in the container has almost been consumed, and thus the paste in the container has been exhausted. Activating the suction means later to cause undesirable phenomena, such as air suction, can be reliably avoided.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a preferred embodiment of a paste supply device configured according to the present invention.

FIG. 2 is a partial side view showing a receiving unit, a container support and support mechanism, a throttle member, and a container in the paste supply device of FIG.

FIG. 3 is a partial perspective view showing a receiving unit, a container support mechanism, and a part of the container in the paste supply device of FIG. 1;

[Explanation of symbols]

 2: Housing 10: Receiving part 12: Container support mechanism 14: Container 16: Main part of container 18: Mouth and neck part of container 40: Support frame 56: Mouth and neck part holding means 62: Main part holding means 82: Squeezing member 84: Detecting means (for detecting the diaphragm member)

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-8-24618 (JP, A) JP-A-2-119690 (JP, A) JP-A-4-152943 (JP, A) JP-A-1- 181860 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61C 9/00 B01J 4/00-4/04

Claims (4)

(57) [Claims] 1. A container having a receiving portion, a housing having a mouth and a neck, and a main portion formed of a flexible material and containing a paste, the mouth and the neck being connected to the receiving portion. And a container support mechanism for supporting the container. The paste supply device is movable along a main portion of the container supported by the container support mechanism, and is maintained in a swollen state by the contained paste. Movement of the container in the direction toward the mouth and neck is prevented by the interference of the main part of the container, but the neck and neck of the container are squeezed in accordance with the outflow of the contained paste from the mouth and neck. A paste member which is provided to move in a direction toward. 2. The container is supported with the main part extending upward with the mouth and neck connected to the receiving part downward.
The paste supply device according to claim 1. 3. The squeezing member is movably mounted on a rod extending along a main portion of the container supported by the container supporting mechanism, and is biased toward the mouth and neck by its own weight. Or the paste supply device according to 2. 4. The paste supply device according to claim 1, further comprising a detector for detecting when the throttle member moves to a predetermined position in a direction toward the mouth and neck portion.