JPS61180628A - Device for joining to container cover simultaneously with forming tension ring made of metal - Google Patents

Abstract

PURPOSE:To perform the mass production of the good tension ring blank of the tab for tearing off a can cover by performing the fine adjustment of the gap of both edges uniformly by worm and thread mechanism in the shearing mechanism of curled strip shape by movable shearing edge of metallic thin plate which is inserted vertically into a stationary shearing edge. CONSTITUTION:The second supporting body 50 is supported by the thread 76 having worm 72 and worm wheel 74 on the supporting shaft 22 fixed to a support substrate 48 and stationary shearing edge 64 is arranged. Plural movable shearing edges 36 are fastened to the first support body 2 which is horizontally supported by bearing 30 on the support shaft 22 and rotated at high speed by gear wheel 40 and cut in curled strip shape the metallic thin strip vertically inserted into the stationary shearing edge 62. The gap between both edges 64, 36 is minutely adjusted by the rotation of the thread 76 by the worm 72 and worm wheel 74 and the curled strip is well mass-produced by plural movable shearing edges 36. There is the roller unit 102 for fine adjustment on the second support body 58 which presses the face of gear wheel 40 to stabilize the gap of both edges 64, 32.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a device for forming and simultaneously bonding a tension ring to a container lid.

Recently, container lids have been developed in which a tear-weakening line is provided on the container lid body that extends from the tear-off tab protruding from the skirt of the container lid all the way to the top surface, and can be easily opened by pulling the tear-off tab. It is widespread. In this type of container lid, it is necessary to pull up the tear tab with considerable force when opening the lid, and therefore, the tear tab is made relatively long or equipped with a suitable tension piece. Makes opening easier.

However, if the tear-off tab is relatively long, there is a disadvantage that a lot of material is wasted when preforming the container lid from sheet metal, and the manufacturing cost of the container lid is high.
When attaching a tension piece to a tear-off tab on a container lid, it has traditionally been connected by means such as gluing, riveting, or clamping, but these methods require a lot of effort and time during the manufacturing process. This increases the manufacturing cost, and the connection part is fragile and may be broken before the package is opened.

In order to solve the above-mentioned problems, a substantially cylindrical pre-formed body is formed, and the free end of the tear-off tab of the container lid and a part of the pre-formed body are able to overlap with each other. positioning the container lid and the preformed body, and then curling the peripheral edge of the preformed body in the radial direction to form a ring, and rolling the tear-off tab into the ring to join the two; Accordingly, a manufacturing method and device for manufacturing container lids with tensioning rings were proposed by Wikanders of Sweden, and a patent application was filed (Japanese Patent Application No. 58-138).
No. 55 and Japanese Patent Application No. 58-13856). In this type of container lid with a tension ring, the forming of the container lid includes (1) a preformed body forming means for forming a substantially annular preformed body; (2)
(1) A pre-formed body supplying means for supplying the above-mentioned pre-formed body to a position where the pre-formed body is joined to a tear-off tab of a container lid; (1) A container lid supply means for supplying a container lid; This is easily accomplished by an apparatus essentially consisting of a tension ring forming and connecting means for forming the shaped body into a tension ring and simultaneously connecting it to the container lid.

In such a case, in order to obtain a container lid with a tension ring with stable quality at low cost, a substantially cylindrical annular preform is formed at a sufficiently high speed, and the formed preform is used as a tension ring at a sufficiently high speed. It is required to be molded and sufficiently securely bonded to the tear tab of the container lid.

Therefore, in order to satisfy the above-mentioned requirements, the applicant:
The apparatus for forming and joining a container lid with a tension ring having the above-described structure has been improved, and the tension ring can be formed and joined at a sufficiently high speed and with sufficient strength. A device is proposed that forms a tension ring and connects it to the container lid at the same time. This device includes a preform forming means for shearing and simultaneously bending strips from a thin metal plate to form a substantially cylindrical annular preform; positioning the container lid and the pre-formed body so that they are in an overlapping relationship with each other, curling the peripheral edge of the pre-formed body in a radial direction to form a ring, and removing the tear-off tab. A tensile ring is formed by wrapping the inside of the ring to connect the two.

the preform forming means having a stationary shearing tool having a stationary shearing blade located at a predetermined shearing position and a movable shearing blade disposed on a rotating support and cooperating with said stationary shearing blade. The movable shearing tool is configured to gradually shear the thin metal plate from one side edge to the other side edge and curve the metal sheet in the width direction.

However, in the above-mentioned apparatus, (11) In order to form a preform having the desired shape, the distance between the stationary shearing blade of the stationary shearing tool and the movable shearing blade of the movable shearing tool at the shearing position must be maintained at a predetermined value. However, it is difficult to set the distance between the stationary shearing blade and the movable shearing blade to a predetermined value. It is necessary to rotate the provided rotary support at high speed, but in such a case, vibration occurs in the rotary support, and due to this, it is difficult to stably form a preformed body in the desired shape. There are disadvantages such as not being able to do so.

<Object of the Invention> The present invention has been made in view of the above facts, and its main purpose is to form a preformed body in which the distance between the above-mentioned stationary shearing blades and movable shearing blades can be easily set to a predetermined value. It is an object of the present invention to provide an apparatus for simultaneously forming and bonding a metal tensioning to a container lid, having means.

<Summary of the Invention> According to the present invention, there is provided a preform forming means for forming a substantially cylindrical annular preform by shearing and simultaneously bending a strip from a thin metal plate, and a free end of a tear-off tab of a container lid. The container lid and the preformed body are positioned so that the part and the core molded body overlap each other, and the peripheral edge of the preformed body is curled in the radial direction to form a ring. a tension ring forming and joining means for forming a metal tension ring into a container lid and rolling the tear tab into the ring to join the two; The body forming means has a stationary shearing tool having a stationary shearing blade located at a predetermined shearing position, and a movable shearing blade that is moved in a predetermined direction, and cooperates with the stationary shearing tool at the shearing position to cut the metal. A movable shearing tool configured to gradually shear the tip of a thin plate in the longitudinal direction from one side edge to the other side edge and curve it in the width direction to form a substantially cylindrical ring shape, and the stationary shearing tool. An apparatus is provided, characterized in that it comprises adjustment means for adjusting the spacing between the movable shearing blade and the stationary shearing blade in the shearing position by moving the movable shearing blade relative to the shearing position.

Further, according to one embodiment of the present invention, the preformed body forming means is further configured to prevent vibration caused by rotation in a predetermined direction of the first support body on which the movable shearing tool is disposed. Equipped with a shake prevention mechanism.

<Preferred Specific Example of the Invention> Hereinafter, a specific example of an apparatus configured according to the present invention will be described with reference to the accompanying drawings.

First, the overall basic structure of the apparatus according to the present invention will be explained with reference to FIG. means 16, container lid transfer means 18, and bond reinforcing means 20. The outline of each of these means is as follows.

The pre-formed body forming means 10 is a substantially cylindrical shape in which a strip is cut from a strip-shaped thin metal plate made of chromic acid treated steel, tin plate, aluminum alloy, etc., and simultaneously curved in the longitudinal direction and both ends of the strip are overlapped with each other. An annular preform is formed. Next, the preformed body supply means 12 (described later) receives the preformed body formed by the preformed body forming means 10 in the holding areas A and B, conveys it in the direction shown by the arrow, and transports the preformed body formed by the preformed body forming means 10 in the direction shown by the arrow. Transport to receiving area C. On the other hand, the container lid supply means 14 is
The container lid is picked up in the holding area, conveyed in the direction shown by the arrow, and carried out to the container lid receiving area E. The tension forming and joining means 16 receives the preformed body from the preformed body supplying means 12 in the preformed rod receiving area C, conveys it in the direction shown by the arrow, and then attaches the container lid to the container lid receiving area E. Receive the container lid from the supply means 14 and position the container lid and preform in the desired position so that the free end of the tear tab of the container lid and a portion of the preform are in mutually overlapping relationship. After that, the tear-off tab of the container is bent as required in the bending area F, and then the peripheral edge of the preform is curled in the radial direction in the tension ring forming and joining area G to form a ring. At the same time, the tear-off tab of the container lid is rolled into this ring to connect the two, and the container is carried out to the discharge area H.

Further, the container lid moving means 18 picks up the container lid to which the tension ring is connected from the tension ring and connection means 16 in the discharge area H, transports it in the direction of the arrow, and carries it out to the transfer area (2). The bonding reinforcing means 20 picks up the container lid to which the tensile ring has been bonded from the container lid transferring means 18 in the transfer zone (3), conveys it in the direction of the arrow, and in the pressurized deformation zone J, tightens the tear-off tab of the container lid. After the joint with a part of the tension ring is pressurized and deformed to strengthen the joint, it is transported to the delivery area.

The above-mentioned preformed body supply means 12, container lid supply means 14,
Tension ring forming and coupling means 16, container lid transfer means 18
, and the structure and operation and effect of the bond reinforcing means 20 are disclosed in Japanese Patent Application No. 58-6528 filed by the present applicant.
No. 6, Patent Application No. 1982-65287, Patent Application No. 1982-652
No. 88, Japanese Patent Application No. 58-65289 and Japanese Patent Application No. 58-6
It is substantially the same as that disclosed in the specification and drawings of No. 5290.

Next, with reference to FIGS. 2 to 5, the above-mentioned preformed body forming means 1O will be explained in detail.

In FIGS. 2 and 3, the illustrated preformed body forming means l
O includes a support shaft 22 extending in the vertical direction, and a first support body 24 is rotatably mounted on this support shaft 22. In a specific example, as shown in FIG.
A shoulder portion is formed on the upper part of 2, and a locking member 28 is mounted below this shoulder portion. A pair of bearing members 30 are mounted between the shoulder portion and the locking member 28 at intervals in the vertical direction.
A support body 24 is attached. This first support 24
Further, a sleeve member 32 is fixed to the bearing member 30, and the sleeve member 32 is disposed between the pair of bearing members 30.

With this structure, the first support body 24 supports the support shaft 2
2, but does not move vertically relative to this support shaft 22.

As shown in FIG. 2, the first support body 24 is provided with a plurality of protrusions 34 (six in the specific example) at intervals in the circumferential direction on its peripheral edge. A movable shearing blade 36 of a movable shearing tool is attached to each of the movable shearing blades 34 . In the specific example, the top surface of each protrusion 34 is connected to the first support 24.
The protrusion 34 is somewhat lower than the upper surface of the base of the
A movable shearing blade 36 is attached to the upper surface of each of the blades by a mounting screw 38. Referring to FIG. 3, the first support 24
Further, a large gear 40 is fixed to the lower peripheral portion by a mounting screw 42. The large gear 40 is meshed with an output gear 44 fixed to the output side of a drive source (not shown) such as an electric motor for driving the preform means IO. As described above, the driving force from the driving source (not shown) is transmitted to the first gear via the output gear 44 and the large gear 40.
, and thus the first support 24
, therefore, the movable shearing blade 36 of the movable shearing tool is connected to the arrow 46 (second
It is rotated in the direction shown in the figure).

A support substrate 48 is disposed below the first support body 24, as shown in FIG. An opening is formed in the support substrate 48, and a support member 50 is fixed to the opening with a mounting screw 52.

The support member 50 supports the lower part of the support shaft 22 together with the support sleeve 54 . In the specific example, key grooves are formed in the inner circumferential surface of the support member 50 and the lower outer circumferential surface of the support shaft 22, respectively, and the key member 56 is inserted into the key grooves.

Therefore, the support shaft 22 is prevented from rotating by the key member 56.

Further, above the first support 24, a second support 58 is provided.
is installed. In a specific example, the second support 5
Reference numeral 8 comprises a support plate, which is attached to the support substrate 48, although not shown.

In a predetermined position of the second support 58, that is, in a shearing position coincident with the preform holding area indicated by reference numeral (or B) in FIG.
An aperture 60 is provided in which a stationary shearing tool 62 is fixed in cooperation with the movable shearing tool. Stationary shearing tool 6
As shown in FIG. 2, the stationary shear blade 64 and the stationary guide restraint member 66 each have a substantially horizontal lower surface defining a common plane. are interconnected. A guide groove extending in the vertical direction (direction perpendicular to the plane of the paper in FIG. 1) is formed on the surface of the guide restraining member 38 that comes into contact with the stationary shearing blade 64;
This guide groove allows the stationary shear blade 64 and the guide restraint member 66 to
A guide slot 68 extending vertically is defined between the two. This guide slot 68 has a shape corresponding to the cross-sectional shape of a strip-shaped thin metal sheet (not shown) to be sheared by the cooperation of the movable shearing tool and the stationary shearing tool 62, and the thin metal sheet is upwardly passed through the guide slot 68. It is sent downward from the

In the preformed body forming means 10 having the above-described structure, the strip-shaped thin metal plate is intermittently fed from above to below through the guide slot 68 by the action of the feeding means (not shown). On the other hand, the first support 24 is indicated by the arrow 46 (FIG. 2).
It is rotated continuously in the direction shown in . Thus, as the sheet metal is fed as described above, the movable shearing blades 36 mounted on the first support 24 sequentially cooperate with the single stationary shearing blade 64 of the stationary shearing tool 62. Shearing thin metal sheets.

Note that the band-shaped metal thin plate is formed after the stationary shearing blade 64 cooperates with one of the movable shearing blades 36 to form the preformed body, and until the next movable shearing blade 36 cooperates with the stationary shearing blade 64. At this point, the tip portion is sent downwardly beyond the lower surface of the stationary shearing blade 64 by a predetermined distance. The shearing of the metal sheet mentioned above is
As can be understood from FIG. 2, in order for the movable shearing blade 36 to act on the thin metal plate gradually from its radially inner end to its outer end, the movable shearing blade 36 is The shearing is carried out gradually, and due to the shearing force, the tip of the thin metal plate curves from one edge toward the other side as the shearing progresses. When the thin metal sheet is completely sheared, the tip of the thin metal sheet forms a substantially cylindrical preformed body by curving the strip in its longitudinal direction and overlapping both ends of the strip. The structure and effects of the compact forming means 10, particularly the movable shearing tool and the stationary shearing tool 62, are as disclosed in the specification and drawings of Japanese Patent Application No. 1982-65285 filed by the present applicant. are substantially the same.

The preformed body forming means 10 described above further includes an adjusting means for adjusting the distance between the movable shearing blade 36 and the stationary shearing blade 64 at the shearing position. Referring again to FIGS. 2 and 3, the illustrated adjusting means 70 includes a worm 72, a rotating member 74, and an operation adjusting member 76. As shown in FIG. An opening is formed in the second support body 58, and the support member 78 is fixed to the opening with a mounting screw 80. This support member 78 supports the upper end of the support shaft 22, as shown in FIG. The support member 78 is integrally provided with a block portion 82, and the worm 72 is attached to the block portion 82. In the specific example, a substantially horizontally extending cylindrical recess 84 is formed in the block portion 82, and the recess 84
A mounting screw 86 is screwed into the bottom of the recess 84 within the worm 7 (as will be understood from later description, the mounting screw 86 is threaded into the bottom of the recess 84).
A worm 72 is attached to the worm 72 via a locking means (which also acts as a first locking means for preventing rotation of the worm 2). The main portion of the worm 72 (the portion located within the recess 84) is formed with a helical coil-like strip, and the tip thereof has a hexagonal cross-sectional shape.

Therefore, the worm 72 is prevented from rotating when the mounting screw 86 is tightened, but becomes freely rotatable when the mounting screw 86 is loosened.

The worm 72 can be rotated in a desired direction by attaching a tool (not shown) to the distal end of the mounting screw 86 and rotating it while the mounting screw 86 is loosened.

A rotating member 74 is disposed on the upper surface of the support member 78, and the lower end of the rotating member 74 is attached to the upper end of the operation adjustment member 76, which is screwed to one end of the support shaft 22. In a specific example, the upper end of the actuation adjustment member 76 is formed to have a rectangular cross-sectional shape, and the base of the rotating member 74 is formed with a polygonal hole 88 into which the upper end engages. By fitting the hole 88 of the rotating member 74, the rotating member 74
are installed as required. Therefore, the rotating member 74 is mounted so as to rotate together with the operation adjusting member 76. Teeth that engage with the threads of the worm 72 are formed at the distal end of the rotating member 74 mounted as described above, and these teeth mesh with the threads.

In the specific example, the rotating member 7 of the block portion 82 is arranged so that the threads of the worm 72 and the teeth of the rotating member 74 can mesh with each other.
The side facing 4 is partially cut out (see Figure 2). In the specific example, further, on the upper surface of the support member 78,
A member 90 for restraining upward movement of the rotation member 74 with respect to the operation adjustment member 76 is detachably attached. As shown in FIG. 2, an opening is formed in a part of the side wall of this member 90, that is, the part facing the block part 82, and the teeth at the tip of the rotating member 74 are inserted into the worm 72 through this opening.
It meshes with the Further, at one end of the support shaft 22, a screw member 92 (as will be understood from the description later, a second screw member 92 for preventing rotation of the operation adjustment member 76) is inserted through the operation adjustment member 76. The locking mechanism is screwed on. As described above, the operation adjustment member 76 is prevented from rotating when the screw member 92 is tightened, but can freely rotate when the screw member 92 is loosened. When the worm 72 is rotated as described above with the screw member 92 loosened, the operation adjustment member 76 is rotated clockwise (or counterclockwise) in FIG. 2 together with the rotation member 74. . As can be understood from FIG. 2, the rotation of the rotating member 74 is within the range from a position where one side of the rotating member 74 abuts one end of the opening of the member 90 to a position where the other side abuts the other end of the opening. It will be held in When the operation adjustment member 76 is rotated as described above, since the support shaft 22 is screwed together with the operation adjustment member 76, this causes the support shaft 22 to move upward in the vertical direction relative to the operation adjustment member 76, that is, the operation adjustment member 76 (or downwards, i.e. away from the actuating adjustment member 76), the first support 24, which is thus provided with a movable shearing blade 36, is moved in the direction closer to the actuating adjustment member 76, so that the first support 24, which is provided with a stationary shearing blade 64, It is moved relative to the second support body 58 upward in the vertical direction, that is, in a direction approaching the second support body 58 (or downward, that is, in a direction away from the second support body 58).

The preformed body forming means 10 of the specific example further includes a shake prevention mechanism for preventing shake caused by the rotation of the first support body 24 in the direction indicated by the arrow 46 (FIG. 2). Referring to FIGS. 4 and 5 together with FIG. 2, in a specific example,
Three anti-shake mechanisms 94a, 94b, and 94c are arranged at appropriate intervals on the periphery of the second support 58. The shake prevention mechanisms 94a, 94b, and 94c have substantially the same configuration, and the shake prevention mechanism 948 will be described in detail mainly with reference to FIGS. 4 and 5. The shake prevention mechanism 942 shown in FIG. A pair of protrusions 98 are provided at the upper end of the support member 96 at intervals. Each of these projections 98 is formed with an elongated hole 100 that extends in the vertical direction. On the other hand,
A block-shaped mounting member 10 is attached to the periphery of the second support body 58.
2 is attached by a mounting screw 104, and one side of the mounting member 102 (shake prevention mechanism 94a and 94
A protrusion 106 is provided on the outer surface of the anti-shake mechanism 94b and on the inner surface of the anti-shake mechanism 94c. However,
The support member 96 is mounted as shown in FIG.
By screwing it onto the mounting member 102, it is mounted so that its position can be freely adjusted. In the specific example, the mounting member 102
A threaded hole is formed vertically through the protruding portion 106, and an adjustment screw 110 is screwed into the threaded hole. Since it is mounted in this manner, the support member 96 can be moved vertically along the side surface of the protrusion 106 by loosening the mounting screw 108, and in this state, the adjustment screw 110
By rotating the support member 96, the position of the support member 96 can be accurately determined. Support member 96 thus attached
A roller 114 is rotatably attached to the lower end of the roller 114 via a shaft member 112.

As shown above, the vibration prevention mechanism 94a.

As can be seen from FIGS. 2, 4, and 5, the rollers 114 of 94b and 94c act on the upper surface of the periphery of the large gear 40, and the first support body is 24 within a predetermined range, and prevents vibration that occurs when rotating at high speed.

Next, mainly referring to FIG. 3, the above-mentioned adjusting means 7
The effects of the preformed body forming means IO equipped with 0 will be explained.

To adjust the spacing between movable shear blade 36 and stationary shear blade 64 in the shearing position, first loosen mounting screw 86 and loosen member 92. In this way, the worm 72 becomes freely rotatable, and the operation adjustment member 76 and the rotating member 74 also become freely rotatable.

Next, a tool (not shown) is attached to the tip of the worm 72 and the worm 72 is rotated. In this way, as the worm 72 rotates, the operation adjustment member 76 together with the rotation member 74 is rotated clockwise (or counterclockwise) in FIG. 2. During such rotation, since rotation of the support shaft 22 is blocked by the key member 56, the rotation member 74 and the operation adjustment member 76 are rotated relative to the support shaft 22. When the operation adjustment member 76 is rotated in this manner, the support shaft 22 is moved vertically (or downward) relative to the operation adjustment member 76, and the first support body 24 is moved relative to the second support body 58. It is moved upward (or downward) in the vertical direction relative to the object. Thus, the distance between the movable shearing blade 36 and the stationary shearing blade 64 is adjusted.

In the specific example, the amount of rotation of the worm 72 is transmitted to the operation adjustment member 76 via its thread and the teeth of the rotation member 74, and the amount of rotation of the operation adjustment member 76 is transmitted to the male threaded portion of the worm 72 and the female threaded portion of the support shaft 22. Since the configuration is such that the vibration is transmitted to the support shaft 22 via the support shaft 22 and converted into vertical movement of the support shaft 22, the above-mentioned interval can be adjusted with high precision.

When the adjustment operation described above is completed, the mounting screw 86 is tightened and the screw member 92 is tightened. In this way, the worm 72 is fixed to the block part 82 and the operation adjustment member 76 is fixed to the support shaft 22, and the above-mentioned interval is reliably maintained, and the above-mentioned interval does not change even during the formation of the preformed body. .

<Effects of the Invention> As described above, in the preformed body forming means 1O described above, the distance between the movable shearing blade 36 and the stationary shearing blade 64 at the shearing position can be easily and accurately set to a predetermined value by the adjusting means 70. Therefore, a preformed body having a desired shape can be stably formed.

Further, in the preformed body forming means 10 described above, the shake prevention mechanism 94a also prevents shake caused by rotation of the first support body 24 provided with the movable shear 36.

Since the pressure can be suppressed by 94b and 94c, a preformed body having a desired shape can be formed at high speed and stably.

[Brief explanation of drawings]

FIG. 1 is a simplified plan view showing a specific example of an apparatus constructed according to the present invention. FIG. 2 is a plan view showing the preformed body forming means of the apparatus shown in FIG. 1; FIG. 3 is a sectional view taken along the line ■-■ in FIG. 2. FIG. 4 is a sectional view taken along line IV-IV in FIG. 2. FIG. 5 is a diagram illustrating the view from the ■-V line in FIG. 2. 10... Preformed body forming means 16... Tension ring forming and coupling means 22... Support shaft 24... First support body 36... Movable shearing blade 58... Second support Body 62...Static shearing tool 64...Static shearing blade 70...Adjustment means 94a, 94b and 94c... Shake prevention mechanism Patent applicant: Toyo Seikan Co., Ltd.

Claims (1)

[Scope of Claims] 1. A preformed body forming means for forming a substantially cylindrical annular preformed body by shearing and simultaneously bending strips from a thin metal plate; a free end portion of a tear-off tab of a container lid; The container lid and the preform are positioned so that a portion of the preform is overlapped with each other, and the peripheral edge of the preform is curled in the radial direction to form a ring. and a tension ring forming and joining means for rolling the tear-off tab into the ring and joining the two, and an apparatus for molding a metal tension ring and simultaneously joining it to a container lid; has a stationary shearing tool having a stationary shearing blade located at a predetermined shearing position, and a movable shearing blade that is moved in a predetermined direction and cooperates with the stationary shearing tool at the shearing position to cut the longitudinal length of the thin metal sheet. A movable shearing tool configured to gradually shear a direction end portion from one side edge to the other side edge and curve in the width direction to form a substantially cylindrical ring shape, and the movable shearing tool is connected to the stationary shearing tool. An apparatus characterized in that it comprises adjusting means for adjusting the distance between the movable shearing blade and the stationary shearing blade in the shearing position by relative movement. 2. The preformed body forming means includes a support shaft extending in the vertical direction, a first support is rotatably mounted on the support shaft, and a A second support is disposed, the first support is vertically movable relative to the second support, and the first support has a circumference. A plurality of movable shearing blades are arranged at predetermined intervals in the direction, and a single stationary shearing blade is arranged on the second support corresponding to the shearing position. Apparatus described in section. 3. The adjustment means includes a worm having a helical winding strip and a rotating member having teeth that engage with the strip of the worm, and the support is adjusted by rotating the rotating member. The shaft is configured to move in the vertical direction, and when the worm is rotated, the rotating member is rotated, thereby moving the support shaft in the vertical direction, and thus the first support body is moved in the vertical direction. 3. The device according to claim 2, wherein the device is moved vertically relative to the two supports. 4. The adjustment means further includes an operation adjustment member screwed to one end of the support shaft, and is configured such that the operation adjustment member rotates together with the rotation member, and the worm is rotated. When rotated, the operation adjustment member is rotated relative to the support shaft via the rotation member, whereby the support shaft is moved in the vertical direction relative to the operation adjustment member, 4. Apparatus according to claim 3, wherein the first support is thus moved vertically relative to the second support. 5. Claim 4, wherein the adjusting means includes a first locking means for preventing rotation of the worm and a second locking means for preventing rotation of the operation adjustment member. Apparatus described in section. 6. Claims 2 to 5, wherein the molded body forming means further includes a shake prevention mechanism for preventing shake caused by rotation of the first support in a predetermined direction. The device described in any of the above. 7. The shake prevention mechanism includes a support member attached to the second support member so as to be vertically adjustable, and a roller rotatably attached to the support member and acting on the first support member. 7. The apparatus according to claim 6, wherein: