JP2002283315A - Block molding apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a block molding apparatus capable of driving a movable sidewall member in a form with a simple constitution while maintaining the operating efficiency of the apparatus good. SOLUTION: The block molding apparatus comprises both left and right plates 17c, 17d, 18c, 18d of plates for constituting the peripheral wall of the form as the movable sidewall members. The apparatus further comprises elevation plates 24 operatively coupled to back surface sides of these plates 17c or the like in a state energized down via leaf springs 30. Accordingly, when cylinder rods 34 of a drive source for the elevation are extended in a state in which lifting fingers 39 are advanced and moved onto a pallet 32, the fingers 39 lift the plates 24. As a result, the plates 17c, 17d and the like of the movable sidewall members move to approach to positions at a molding time. Meanwhile, when the fingers 39 are retracted and moved from the state, the plates 24 are descent. As a result, the plates 17c, 17d and the like are separated and moved to positions at a mold releasing time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a block molding device.

[0002]

2. Description of the Related Art Conventionally, a concrete block used for a block wall or the like has a horizontally long rectangular parallelepiped shape, and its front and rear surfaces are generally smooth. However, in recent years, in order to improve the aesthetics of the constructed block wall, for example, a block having an uneven decorative surface on the surface side (hereinafter, referred to as a “decorative block”) has been proposed. This decorative block is molded using a block molding device in which the side wall member corresponding to the decorative surface among the respective side wall members constituting the mold is movable between a molding position and a mold releasing position. As such a block molding device, for example, Japanese Patent Application Laid-Open No. 2000-225610
An apparatus for molding a concrete block described in Japanese Patent Application Laid-Open Publication No. H10-209,894 is conventionally known.

[0003] The molding apparatus described in this publication is
A plurality of molds are provided on all sides surrounded by front, rear, left and right plates (sidewall members). In each mold, the front plate and the rear plate are each a side wall member for decorative surface molding, and the front plate and the rear plate of each mold are formed at a molding position and a demold position based on the drive of a hydraulic cylinder. It is possible to move forward and backward. That is, a cam capable of pushing the front plate and the rear plate is provided on the back side of the front plate and the rear plate in each of the molds, and a link structure drive is provided between all the cams and the hydraulic cylinder. A mechanism is provided for each.

Accordingly, during block molding in which the hydraulic cylinder is driven, the respective driving mechanisms rotate the respective cams at the same time, and as a result, the front plate and the rear plate of all the molds are moved from the removal position. It is extruded to the position at the time of molding. Further, at a position below the formwork, a pallet having a smooth upper surface is configured to move up and down based on the driving force of another driving source provided separately from the hydraulic cylinder. The lower opening of the frame is closed. Then, in the closed state, after the mold is filled with the raw material, vibration is applied according to a conventional method, so that block molding is performed.

On the other hand, the molding apparatus is provided with a compression coil spring for urging the front plate and the rear plate in the position direction when the molding block is released, and when the molding block is released, the compression coil spring applies the urging force of the compression coil spring. The front plate and the rear plate are configured to return from the molding position to the release position. Therefore, when the pallet descends after the front plate and the rear plate have returned to the unmolding positions, the pallet is taken out with the molding block placed on the pallet.

[0006]

However, in the concrete block molding apparatus described in the above publication,
A drive source (hydraulic cylinder) for moving the front and rear plates for decorative surface molding forward and backward and a drive source for moving the pallet up and down have been separately provided. Then, all the front and rear plates provided for each of the molds are simultaneously moved to a molding position by a driving mechanism of the hydraulic cylinder via a driving mechanism. Therefore, when viewed as a whole apparatus, there is a problem that the power transmission structure of the drive mechanism from the hydraulic cylinder to each cam becomes complicated, and the cost of the apparatus increases.

Further, from the viewpoint of the operating efficiency of the apparatus, in particular, the timing of completion of the upward movement of the pallet during block molding and the timing of completion of the movement of the front plate and the rear plate to the molding positions coincide. Is preferred.
That is, even if the pallet has been completely moved up, if the movement of the front plate and the rear plate to the molding positions has not been completed, the subsequent filling of the raw materials cannot be started, and a waiting time is required. is there. Therefore, as described above, in a configuration in which the vertical movement of the pallet and the forward / backward movement of the front plate and the like are based on the driving forces of the different driving sources, it is necessary to adjust the driving timing settings by both driving sources. There is also a problem that the adjustment work becomes complicated.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a block molding method capable of driving a movable side wall member of a mold with a simple configuration while maintaining good device operation efficiency. It is to provide a device.

[0009]

In order to achieve the above-mentioned object, the invention according to claim 1 comprises a mold having a peripheral wall formed by a plurality of side wall members. The substrate disposed below is relatively moved so as to approach in the vertical direction, and the raw material is filled into the mold placed on the substrate, while the mold and the substrate are removed when the block is released from the mold. Are moved relative to each other so as to be separated in the up-down direction, and the molding block is taken out from the inside of the mold while being placed on the substrate,
At least one of the side wall members is configured as a movable side wall member movable forward and backward between a molding position when the raw material is filled into the mold and a demolding position retracted from the position. The gist is that the movable side wall member is moved from the unmolding position to the molding position based on a driving force of a driving source for relatively moving the mold and the substrate during block molding.

[0010] The invention described in claim 2 is the same as the claim 1.
In the invention described in the above, the movable side wall member is formed at the time of molding from a demolding position based on a pressing force from a displacement member that moves relative to the mold together with the substrate based on the driving force of the driving source during block molding. The gist is to move to a position.

The invention described in claim 3 is the same as the claim 2
In the invention described in the above, a pushing mechanism that receives a pushing force from the displacement member and operates in a predetermined direction is provided on the back side of the movable side wall member, and the movable sidewall is operated by the pushing mechanism. The gist is that the member moves from the position at the time of demolding to the position at the time of molding.

The invention described in claim 4 is the same as the claim 2.
Or in the invention according to claim 3, the displacement member is:
A pressing force is applied to the movable side wall member after the filling of the raw material into the mold at the time of block molding and before the relative movement between the mold and the substrate starts at the time of block demolding. The gist is to displace from the position to a position where the pressing force cannot be applied.

The invention described in claim 5 is the first invention.
In the invention according to any one of claims 4 to 4, the movable side wall member is urged to move from the molding position to the mold release position by receiving a predetermined urging force. It is a gist.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a block molding apparatus embodying the present invention will be described below with reference to FIGS.

As shown in FIG. 1, a block forming apparatus 11 according to the present embodiment includes a rectangular form frame 16 including a front frame 12, a rear frame 13, and left and right frames 14 and 15. A plurality of (two in this embodiment) molds 17 and 18 for block molding are provided in the mold frame 16. In addition, since these two mold frames 17 and 18 basically have the same configuration,
Hereinafter, the mold 17 located on the left side in FIG. 1 will be described as a representative example.

The mold 17 is formed in a rectangular ring shape in which a peripheral wall is formed by front, rear, left and right plates (sidewall members) 17a to 17d, and upper and lower ends of the mold 17 are formed to be open. Have been. The front plate 17a and the rear plate 17b of the plates 17a to 17d are fixed to the corresponding front frame 12 and rear frame 13 in surface contact with each other, and are configured as side wall members that cannot move from the fixed position. Have been.
On the other hand, each of the left and right plates 17c, 17d is configured as a movable side wall member that is horizontally movable between the front plate 17a and the rear plate 17b in a direction in which the left and right plates 17c, 17d approach and separate from each other. ing.

That is, the left and right side plates 17c, 17
On each of the front end face and the rear end face of d, a plurality of (two in the present embodiment) support shafts 20 rotatably supporting the rollers 19 are provided at positions at a predetermined distance apart in the vertical direction.
The front plate 17a and the rear plate 17b have
An insertion hole 21 is formed so as to penetrate the support shaft 20 movably in the horizontal direction so as to correspond to the position of each support shaft 20. Also, the front frame 12 and the rear frame 13
A horizontally long rectangular guide hole 22 that guides the roller 19 so as to be able to roll in the horizontal direction is formed through the roller 19 so as to correspond to the position of each roller 19.

Further, the opposing surfaces of the front plate 17a and the rear plate 17b opposing each other have a smooth surface in which the front and rear end surfaces of the left and right plates 17c and 17d are in sliding contact. Therefore, the left and right side plates 17c and 17d can be moved in the horizontal direction by the rollers 19 of the support shafts 20 rolling in the corresponding guide holes 22. In the present embodiment, the facing surfaces of the left and right plates 17c and 17d are formed with a decorative surface forming concave portion 23 having an uneven inner bottom surface. Irregular decorative surfaces are formed on both side surfaces.

As shown in FIG. 1 and FIG.
On the back side of the left and right side plates 17c, 17d, flat elevating plates 24 are respectively arranged in parallel with the plates 17a, 17b. Each elevating plate 24 includes a front frame 12 and a rear frame 1.
The front and rear end portions are slidably fitted in the vertical groove 25 formed in the third groove 3, and are slidable in the vertical direction while being supported in the vertical groove 25. A plurality of (six in this embodiment) bearings 26 are provided on each of the opposing surfaces of the lifting plate 24 and the left and right side plates 17c and 17d, and a link 27 rotates between the paired bearings 26. It is connected as possible.

Therefore, the left and right plates 17c and 17d of the mold 17 approach and separate from each other by the movement of the link 27 when the elevating plate 24 located on the rear side slides vertically in the vertical groove 25. Move in the direction you want. That is, when the elevating plate 24 moves up, the two plates 17c and 17d move to the molding position where they approach each other. Conversely, when the elevating plate 24 moves down, the two plates 17c and 17d move.
d moves to the demolding position where they are separated from each other. And
In the present embodiment, a pushing mechanism 28 for pushing the left and right plates 17c, 17d from the unmolded position to the molded position by the elevating plate 24, the bearing 26, and the link 27.
Is configured.

Further, on the upper surface of each of the facing frames 12 and 13 of the form frame 16,
A mounting bracket 29 having a U-shaped cross section opened downward is fixed so as to correspond to each of the vertical grooves 25.
On the lower surface of each mounting bracket 29, a leaf spring (biasing member) 30 having a bow-like shape with the distal end obliquely directed downward.
Are supported in a cantilever manner, and the tip of the spring 30 is pressed against the upper end surface of the lifting plate 24. Therefore, the elevating plate 24 is constantly urged in the downward direction by the urging force of the leaf spring 30, and as a result, the left and right side plates 17c and 17d are always urged in the direction of the mold release position which is the direction in which they are separated from each other. Have been.

On the other hand, below the form frame 16 in the block forming apparatus 11, a known pallet transporting apparatus including a driving roller 31 and the like (only the driving roller 31 is shown in FIGS. 3 to 5) is arranged. ing. That is, the pallet transport device transports a plate-shaped pallet (substrate) 32 from the upstream side to the downstream side at a position below the block forming device 11 based on the rotational drive of the drive roller 31. Then, when the pallet 32 is transported from the upstream side (for example, the left side in FIG. 1) to a position immediately below the form frame 16,
The pallet transport operation is temporarily stopped at the position for block molding and demolding, and when the molded block B is released, the pallet 32 on which the block B is placed is again transported to the downstream side.

For this reason, a hydraulic cylinder 33 for raising and lowering the pallet 32 conveyed by the rotation of the drive roller 31 for block molding and demolding is provided below the form frame 16. It is provided as a source (see FIGS. 4 and 5). That is, a horizontal bar 35 is attached to the cylinder rod 34 of the hydraulic cylinder 33, and the hydraulic cylinder 33 can contact and support the pallet 32 from below via the horizontal bar 35. Therefore, the pallet 32 is
When the is driven, it is configured to move relative to the molds 17, 18 in the vertical direction while being placed and supported on the horizontal bar 35. And
When the cylinder rod 34 of the hydraulic cylinder 33 extends and the pallet 32 moves to the highest position (FIGS. 2 and 5).
In (c) and (d)), the lower openings of the molds 17 and 18 are closed by the pallet 32.

As shown schematically in FIGS. 3 and 4, on the side (front side in the present embodiment) of the vertically moving area of the pallet 32, a vertical frame 35 is provided as shown by a dashed line. It is arranged so as to be supported and fixed on the top, and is configured to move up and down together with the pallet 32. Horizontal guide rails 37 are supported on both left and right sides of the lifting frame 36 so as to extend in the front-rear direction so as to form a pair on the left and right. A slide bar 40 is formed between the left and right horizontal guide rails 37 so that a horizontal bar finger 38 and a push-up finger 39 as a displacement member are formed so as to protrude backward.

That is, the slide bar 40 has an elongated shape substantially equal to the length of the form frame 16 in the left-right direction, and flat brackets 41 are located on the left and right ends of the slide bar 40 in a vertical plane. It is fixed by welding. As shown in FIG. 3 and FIG. 4, the horizontal guide rail 37
Upper and lower pairs of rollers 42 that roll while sandwiching
Are rotatably supported. A slide drive mechanism (not shown) provided in the lift frame 36 is operatively connected to the slide bar 40, and when the slide drive mechanism is driven, the slide bar 40 moves forward and backward. It has a configuration.

It should be noted that between the upper end portions of the front frame 12 and the rear frame 13 of the form frame 16,
Hanging rods 43 are provided so as to be located between the right and left side plates 17c and 17d in the positions 7 and 18. Each core 44 for forming a vertical reinforcing bar arrangement hole in the molding block B is suspended and supported by the suspension rod 43.
Incidentally, the lower end of each core 44 is formed in a concave shape corresponding to the cross-sectional shape of the lateral muscle finger 38 as shown in FIG. At the lower end of the front frame 12 of the formwork frame 16, cutout recesses 45 and 46 having a shape corresponding to the cross-sectional shape of each of the horizontal muscle fingers 38 and each of the push-up fingers 39 are formed. Similarly, each form 1
At the lower end portions of the front plates 17a and 18a in the front and rear plates 7 and 18, a cutout recess 47 having a shape corresponding to the cross-sectional shape of each horizontal streak finger 38 communicates with the cutout recess 45 for the transverse streak finger 38 formed in the front frame 12. Is formed.

Next, the operation of the block molding apparatus 11 according to the present embodiment having the above-described configuration will be described with reference to FIG. FIG. 5 shows that the center push mechanism 28 provided on the left side of the right side plate 17d on the left side form 17 and on the rear side of the left side plate 18c of the right side form 18 moves the pallet 32 up and down. The state which operates according to the slide movement of the push-up finger 39 is shown.

Therefore, in FIG. 5, for convenience of explanation, the two plates 17d and 18c and the two plates 1
The pushing mechanism 28 between 7d and 18c is exemplarily extracted and displayed. Further, the guide hole 22 in which the roller 19 that horizontally moves integrally with the plates 17d and 18c is rolled and guided is also shown on the drawing together to show the positional relationship of the roller 19 in the guide hole 22. are doing.

As shown in FIG. 5 (a), the pallet 32 is used in a stage before shifting to the block molding step.
And the molds 17 and 18 are in a positional relationship vertically separated from each other. That is, the pallet 32 is conveyed to a position immediately below the molds 17 and 18 in the block molding device 11 while being supported on the driving roller 31 of the pallet conveyance device described above, and then temporarily stopped at that position. The hydraulic cylinder 33, which is a drive source for raising and lowering, has a cylinder rod 34 in a contracted state. Therefore, the horizontal bar 35 provided at the tip of the cylinder rod 34 is at the lowest position further separated from the pallet 32 further downward. Since the lifting frame 36 equipped with the slide bar 40 and the like is also supported and fixed to the horizontal bar 35, the horizontal bar 3
5 and in the lowest position.

On the other hand, the push-up finger 39 is shown in FIG.
As shown in FIG. 4 and FIG.
Is located at a position retracted from a position directly below each lifting plate 24 in FIG. 5 (a position on the near side in a direction orthogonal to the plane of FIG. 5). Therefore, the right plate 17d of the left mold 17 and the left plate 18c of the right mold 18 are connected to both the molds 17, 1
Since the lifting plate 24 between the eight positions is biased and held at a lower position by the biasing force of the leaf spring 30, the lifting plate 24 is at the release position while being operatively connected to the pushing mechanism 28.

Then, from this state, the block molding apparatus 1
When the first operation switch (not shown) is operated, first, the cylinder rod 34 of the hydraulic cylinder 33 is extended, and the horizontal bar 35 is moved up to contact the lower surface of the pallet 32. Then, when the cylinder rod 34 further extends from that state, the pallet 32 is placed and supported on the horizontal bar 35, and
It rises to the height position shown in (b). Then, the hydraulic cylinder 33 temporarily stops the extension operation of the cylinder rod 34 at the height position.

Then, the slide drive mechanism mounted on the lifting frame 36 is driven, and the slide bar 40 moves from the front to the rear. That is, the slide bar 40 moves horizontally toward the vertical movement area of the pallet 32 as the upper and lower rollers 42 at both right and left ends roll along the horizontal guide rails 37. Then, each of the push-up fingers 39 projecting rearward from the slide bar 40 slides on the upper surface of the pallet 32 placed and supported on the horizontal bar 35 and advances to a position directly below the corresponding lifting plate 24 ( FIG. 5 (b)). In this case, each of the horizontal streak fingers 38 slides on the upper surface of the pallet 32 in the same manner as the push-up finger 39, and the corresponding core 4
Advance to the position immediately below 4.

Then, the hydraulic cylinder 33 is driven again, the cylinder rod 34 is further extended, and the horizontal bar 35 is raised. Then, along with the horizontal bar 35,
The pallet 32, the horizontal finger 38, and the push-up finger 39 rise from the height position (finger advance position) shown in FIG. 5B to the height position (the highest position) shown in FIG. 5C. Then, each of the horizontal streak fingers 38 and each of the push-up fingers 39 correspond to the corresponding cutout recesses 45 to 47.
And the pallet 32 closes the lower end openings of the molds 17 and 18, and the molds 17 and 18 are placed on the pallet 32.

At that time, the raised pallet 32
Immediately before the molds 17 and 18 are placed on the upper side, the push-up finger 39 presses and contacts the lower end surface of the elevating plate 24 to push the plate 24 upward against the urging force of the leaf spring 30. . Then, based on the ascending and descending movement of the elevating plate 24, a pushing mechanism 28 including the link 27 and the like is provided.
Is activated, and the right side plate 17d of the mold 17 and the mold 1
The left side plate 18c of each of the 8 is pushed toward the molding position (see FIG. 5C). That is, the push-up fingers 39 are connected to the plates 17d and 18 serving as movable side wall members.
This means that the actuator has been displaced to a position where a pressing force is applied to c.

Then, in the state shown in FIG. 5 (c), raw materials such as concrete are filled into the molds 17, 18 from raw material supply means (not shown), and vibration is applied in accordance with a conventional method. After that, the process moves to the next demolding process. That is, the slide drive mechanism on the lifting frame 36 is driven in the direction opposite to the molding step, and the slide bar 40 moves in the direction away from the vertical movement area of the pallet 32. Also lift frame 36
Return to the inside. Therefore, each push-up finger 39 applies the pushing force from the position where the pushing force is applied to the right side plate 17d and the left side plate 18c exemplified as the movable side wall members by pressing and contacting the lower end surface of the elevating plate 24. Displaced to an impossible position.

Then, the lifting plate 24 is attached to the leaf spring 3.
It is urged downward by the urging force of zero. Therefore, the pushing mechanism 28 including the link 27 is operated in the opposite direction, and the right plate 17d and the left plate 18c are respectively moved to the removal positions. As a result, the front and back sides of the decorative surface of the molding block B are separated from the concave portion 23 for decorative surface molding. Then, in this state, the cylinder rod 34 of the hydraulic cylinder 33 of the lifting drive source contracts and returns to the state shown in FIG. And the pallet 32 is conveyed downstream by the drive roller 31.

Accordingly, the block molding apparatus 1 of the present embodiment
In 1, the following effects are obtained. (1) The concave portions 23 for forming the decorative surface in each of the molds 17 and 18
Left and right side plates 1 as movable side wall members formed with
7c, 17d, 18c and 18d can be moved from the unmolding position to the molding position based on the driving force of the hydraulic cylinder 33 which is the driving source for raising and lowering the pallet 32. for that reason,
The number of driving sources when viewed as a whole of the device 11 can be reduced.

(2) Moreover, after the push-up finger 39 is moved from the inside of the lifting frame 36 that rises with the pallet 32 to a position immediately below the lifting plate 24, the hydraulic cylinder 33 serving as the lifting drive source is simply driven again. Left and right side plates 1 via the push-up finger 39 and the push-down mechanism 28
7c, 17d, 18c and 18d can be pushed to the molding position. Therefore, each of the plates 17c, 17d, 18c,
The power transmission mechanism for transmitting the pressing force to the 18d can be simply configured, and the apparatus cost can be reduced.

(3) Further, since the pushing mechanism 28 operates based on the pushing-up finger 39 coming into contact with the elevating plate 24 from below, the completion timing of the elevation of the pallet 32 and the respective plates 17c, 17d, 18c,
The movement completion timing of the 18d to the molding position can be easily matched. Therefore, unlike the related art in which a complicated timing adjustment operation is required, the device maintenance operation is simplified, and the operation cost can be reduced while maintaining the operation efficiency of the device satisfactorily.

(4) Since the lifting finger 39 as a displacement member is mounted on the lifting frame 36 fixedly supported by the horizontal bar 35 which rises while placing and supporting the pallet 32, the lifting finger 39 for the mold frames 17 and 18 is provided. During the relative movement of the pallet 32, the pallet 32 can be reliably moved following the movement of the pallet 32.

(5) In addition, a downward biasing force is always applied to the lifting plate 24 from the leaf spring 30 so that each mold 1
After the raw materials are filled into the plates 7 and 18, the push-up fingers 39 are retracted from a position immediately below the elevating plate 24 before the pallet 32 starts descending. Therefore, the plates 17c, 17d, 18c, and 18d, which are movable side wall members, can be reliably returned to the removal position before the molding block B is taken out.

(6) Further, as shown in FIG. 4, since the push-up finger 39 is formed such that the top surface 39a of the tip portion is formed with a gentle downward slope, the push-up finger 39 is moved forward to a position directly below the elevating plate 24. It is possible to cope with a case where the distance between the lower end surface of the plate 24 and the upper surface of the pallet 32 is small. Further, even when the push-up finger 39 is retracted from the pressing force applying position where the push-up finger 39 is pressed against the lower end surface of the lift plate 24, the lift plate 24 is not suddenly moved downward by the urging force of the leaf spring 30.

Next, a second embodiment of the present invention will be described with reference to FIGS.
It will be described based on. In the second embodiment, the pallet 32
The configuration is different from that of the first embodiment in that a lifting frame 36 that moves up and down together with the pallet 32 is not provided on the side of the lifting movement area. And such a lifting frame 3
In the second embodiment, the support structure for the horizontal guide rails 37 and the transverse muscle fingers 38 is different from that of the first embodiment in relation to the absence of the 6. Therefore, hereinafter, only the components different from those of the first embodiment will be described, and the same reference numerals will be given to the components having the same configuration as the first embodiment (for example, the mold frame 16 and the like). Duplicate description is omitted.

In this embodiment, since the lifting frame 36 is not provided, the horizontal guide rail 37 is shown at substantially the same height as the lower end of the form frame 16 as shown in FIGS. It is fixedly supported so as to extend in the front-rear direction via a support frame not provided. The horizontal bar 35 attached to the cylinder rod 34 of the hydraulic cylinder 33 is also arranged in the vertical movement area of the pallet 32, and is set to have substantially the same length as the pallet 32 in the front-rear direction. Therefore, even when the horizontal bar 35 moves up and down by driving the hydraulic cylinder 33, the horizontal guide rail 37 in this embodiment does not move up and down from the above-described height position. Therefore, the hydraulic cylinder 33 is similarly driven by the slide bar 40 slidably supported between the left and right horizontal guide rails 37 so that the horizontal bar 3
When 5 moves up and down, it does not move up and down.

On the other hand, the horizontal muscle finger 38 and the push-up finger 39 in the present embodiment have the following support structure. That is, the side (front) of the slide bar 40
A vibration isolator 51 made of rubber or the like is attached and fixed to the, and a connecting bar 52 is attached and fixed to the vibration isolator 51. The lateral muscle finger 38 and the push-up finger 39 are supported in a cantilevered state on the side surface (front surface) of the connection bar 52. In the vicinity of the distal ends of the left and right horizontal guide rails 37 and slightly below the guide rails 37, the finger support rods 53 are supported so as to extend in the left-right direction (horizontal direction) with respect to a support frame (not shown). Have been.

That is, when the slide bar 40 is at a position retracted from the mold frame 16 before the block molding step, as shown in FIG. Reference numeral 39 denotes a state in which the tip is obliquely lowered. Therefore, if left in this state, the vibration isolator 51 will be worn out, but in the present embodiment, the finger support rod 53 abuts and supports the distal ends of the horizontal muscle fingers 38 and the like. In this way, the vibration isolator 51 is prevented from being fatigued.

Then, a block forming process is started, and the horizontal bar 35 is driven by the hydraulic cylinder 33 to move the pallet 32.
When the slide bar 40 is moved upward to the height position shown in FIG. 8, the slide bar 40 starts to move forward by driving of a slide drive mechanism (not shown). Then, as shown in the same figure, the horizontal streak finger 38 and the push-up finger 39 also move forward while sliding their tips, which are obliquely downward, onto the pallet 32. By this forward movement, the horizontal finger 38 advances to a position immediately below the corresponding core 44, and the push-up finger 39 advances to a position immediately below the corresponding lifting plate 24.

That is, the relative position with respect to the mold frame 16 is the same as the state shown in FIG. 5B in the first embodiment. Accordingly, when the hydraulic cylinder 33 is re-driven from that state and the horizontal bar 35 further raises the pallet 32, the horizontal streaks finger 38 and the push-up finger 39 become horizontal while elastically deforming the vibration isolator 51.
Then, each horizontal muscle finger 38 and each push-up finger 3
9 fits into the corresponding notched recesses 45 to 47, respectively, and the pallet 32 closes the lower end side openings of the molds 17, 18, so that the molds 17, 18 are placed on the pallet 32.

Then, FIG. 5C in the first embodiment is obtained.
The lifting plate 39 is pushed upward by the push-up finger 39. As a result, the pushing mechanism 28 operates to push the respective plates (movable side wall members) 17c, 17d, 18c, 18d of the molds 17, 18 toward the molding position. Then, when the raw material is supplied into the molds 17 and 18 and the process proceeds to the demolding process, the slide bar 40 moves backward to the position before the original molding process based on the operation of the slide drive mechanism. Then, the horizontal muscle finger 38 and the push-up finger 39 also move backward,
It returns to the state shown in FIG. That is, the molds 17, 18 and the pallet 32 become the same as the state shown in FIG. 5D of the first embodiment, and thereafter, the molding block B is taken out in a mounted state on the descending pallet 32, and The pallet 32 is transported downstream by the drive roller 31.

Therefore, also in the second embodiment, the same effects as (1) to (5) in the first embodiment can be obtained. In particular, regarding the effect shown in (4), although the lifting frame 36 is not provided, the push-up finger 39 is cantilevered by the slide bar 40 via the vibration-proof material 51 that is elastically deformed. The same effect as in the first embodiment is obtained.

The above embodiments may be embodied with the following modifications. In the above embodiments, the leaf spring 30 is used as a biasing member for biasing the lifting plate 24 downward, but the lifting plate 24 is not limited to the leaf spring 30 but may be pressed by another biasing member such as a compression coil spring. It may be configured to bias downward. In short, each of the plates 17c, 17d, 1
As long as a biasing force can be applied to the positions 8c and 18d from the molding position to the release position, the leaf spring 30 can be used instead.

In each of the above embodiments, the pair of front and rear leaf springs 30 presses the front and rear portions of the upper surface of the elevating plate 24 downward, respectively.
A configuration in which the central portion of the upper surface of the elevating plate 24 is pressed downward by one leaf spring may be used.

In each of the above-described embodiments, the pallet 32 is temporarily stopped from moving upward, and the push-up finger 39 is moved to a position immediately below the elevating plate 24.
Was started to rise again. However, the driving roller 3
Before raising the pallet 32 from above, the lifting finger 39 may be advanced to the position immediately below the lifting plate 24, and then the pallet 32 and the lifting finger 39 may be started to rise. That is, the pallet 32
If the push-up finger 39 can reach the position immediately below by the completion of the lifting, the movement start timing of the push-up finger 39 can be arbitrarily set.

In each of the above embodiments, the push-up finger 39 that slides on the pallet 32 is moved up and down by the lifting plate 24.
The lower end surface of the elevating plate 24 may be configured to press and contact only the front portion of the lower end surface of the elevating plate 24 by shortening the push-up finger 39. Further, such a short push-up finger 39 is provided so as to be able to advance and retreat from the rear side of the lifting / lowering area of the pallet 32, and the rear push-up finger 39 presses and contacts only the rear portion of the lower end surface of the lift plate 24. It may be. Further, the lifting plate 24 is moved by the front and rear push-up fingers 39.
The lower end surface may be configured to be in pressure contact with both the front side portion and the rear side portion.

In each of the above embodiments, the lifting finger 39 is employed as a displacement member. However, after the pallet 32 ascends and presses against the lower end surface of the elevating plate 24 and moves upward, If it is in a position where the pressing force cannot be applied to the motor, it may be constituted by a rotating cam or the like.

In each of the above embodiments, the hydraulic cylinder 33 is used as the drive source for raising and lowering the pallet 32. However, the drive source is not limited to the hydraulic cylinder 33.
In short, any other drive source such as a motor can be used as long as the drive source can move the pallet 32 up and down with the operation of the block forming device 11.

In the above embodiments, the molds 17 and 18
When the pallet 32 is moved relative to the pallet 32, the pallet 32 is moved up and down.
May be moved up and down together with the form frame 16. Or. Both may be moved up and down so as to approach and separate from each other.

In the above embodiments, the left and right plates 17c, 17d, 18c, 18d are movable wall members. However, only the left plates 17c, 18c or only the right plates 17d, 18d may be movable wall members. Good. Alternatively, the front and rear plates 17a, 17b, 18a,
18b may be a movable side wall member. In short, any configuration may be used as long as at least one of the front, rear, left and right plates 17a to 17d and 18a to 18d is a movable side wall member.

In the above embodiments, the left and right side plates 17c, 17d, 18c, 18d serving as movable side wall members are provided.
Was formed with a decorative surface forming recess 23 on each facing surface of
The recess 23 is not necessarily required. In other words, the present invention is not limited to a decorative block molding device having an uneven decorative surface on the block surface, and may be embodied as a general-purpose block molding device having no decorative surface on the block surface.

[0060]

According to the invention described in each claim of the present application,
The movable side wall member in the mold can be driven with a simple configuration while maintaining good device operation efficiency.

[Brief description of the drawings]

FIG. 1 is a plan view of a block molding apparatus according to a first embodiment before raw materials are filled.

FIG. 2 is a partial cross-sectional view taken along line AA of FIG.

FIG. 3 is a plan view schematically illustrating a positional relationship between a push-up finger, a pallet, and a mold frame.

FIG. 4 is a side view schematically illustrating a positional relationship between a push-up finger, a pallet, and a mold frame.

FIG. 5 is an operation explanatory view of the block molding apparatus;
(A) is a state before the substrate is raised in the molding step, (b) is a state in which the substrate is being raised in the molding step, (c) is a state immediately before the raw material is filled in the molding step, and (d) is a state after the completion of the molding step. This shows the state immediately before the start of the molding process.

FIG. 6 is a plan view schematically illustrating a positional relationship among a push-up finger, a pallet, and a mold frame of the block molding apparatus according to the second embodiment.

FIG. 7 is a side view schematically illustrating the positional relationship between the push-up finger, the pallet, and the formwork frame.

FIG. 8 is a side view schematically illustrating a state in which a push-up finger or the like has advanced from the state of FIG. 7;

[Explanation of symbols]

11: block molding device, 17: formwork, 17a to 17d
... Front, rear, left and right plates as side wall members, 18a to 18
d: front, rear, left and right plates as side wall members, 28: pushing mechanism, 30: leaf spring as urging member, 32: pallet as substrate, 33 ... hydraulic cylinder as drive source, 3
9: push-up finger as a displacement member, B: molded block.

Claims (5)

[Claims] 1. A mold having a peripheral wall formed by a plurality of side wall members, wherein during molding of a block, the mold and a substrate disposed below the mold move relative to each other so as to approach vertically. While the raw material is filled into the mold placed in the state of being placed on the upper side, at the time of demolding the block, the mold and the substrate relatively move so as to be vertically separated from each other, and the molding block is removed from within the mold. In the block molding apparatus configured to be taken out while being placed on the substrate, at least one side wall member among the side wall members is molded at the time of molding when the raw material is filled in the mold and the position. The movable side wall member is configured as a movable side wall member that can move forward and backward between a mold release position retracted from the mold, and the movable side wall member is removed based on a driving force of a drive source that relatively moves the mold and the substrate during block molding. Time position to molding position Moves to the configuration and the block molding apparatus. 2. The movable side wall member is moved from a release position to a molding position based on a pressing force from a displacement member that moves relative to the mold together with the substrate based on the driving force of the driving source during block molding. The block molding apparatus according to claim 1, wherein the block molding apparatus moves. 3. A push mechanism which is actuated in a predetermined direction by receiving a pushing force from the displacement member is provided on a back side of the movable side wall member, and the movable side wall member is actuated by the pushing mechanism. 3. The block molding apparatus according to claim 2, wherein the block moves from the position at the time of demolding to the position at the time of molding. 4. The movable side wall member according to claim 1, wherein the movable member is provided after completion of filling of the raw material into the mold at the time of block molding and before starting relative movement between the mold and the substrate at the time of demolding the block. The block molding device according to claim 2, wherein the block is displaced from a position at which the pressing force is applied to the position to a position at which the pressing force cannot be applied. 5. The movable side wall member is urged to move from the molding position to the mold release position by receiving a predetermined urging force. The block molding apparatus according to item 1.