JP4044574B2 - Transport table for transporting sheet-like printing material, especially suction belt table - Google Patents

Description

  The present invention relates to a transport table that feeds sheets with a sheet processing apparatus. In particular, the invention also relates to a suction belt table comprising a suction belt device for transporting a sheet form from a sheet processing apparatus, in particular an automatic sheet feeder in the area of a sheet rotary printing machine. It is related with the conveyance table called.

In order to supply sheets to the sheet processing apparatus, these sheets are usually captured by the automatic sheet feeder from the upper side of the stacked sheets, separated, shifted from each other, Output as a flow of leaf paper. In any case, after separating the sheets, it is necessary to feed the sheets over a certain section to the installation area of the sheet processing apparatus. Usually, since the loaded amount of the sheet is large, the sheet is fed in a scale-like flow to the sheet processing apparatus. However, it is also possible to supply the sheets individually. When a sheet is fed from an automatic sheet feeder to a sheet processing apparatus, a so-called belt table is employed, and the flow of sheets shifted from each other in a scale shape by this belt table or It is possible to reliably guide individual sheets. In this case, a so-called suction belt table is particularly advantageous. The suction belt table usually has a large number of conveying belts in which holes are formed in a flat belt, and negative pressure is applied to the inside opposite to the conveying side surfaces of these belts. Therefore, the sheet to be transported is sucked by a flat belt. In order to convey the sheet by the suction belt table, the suction belt is driven by at least one shaft arranged at one end of the suction belt table, a so-called first belt roller, and by the second shaft or belt roller. It reverses at the other end of the suction belt table. A transport table of the type described above is known from US Pat.
West German Utility Model No. 20214984 Specification

  This type of transport table used in the sheet processing apparatus receives only a relatively small driving force in a normal operation state, but the transport table changes the settings of the sheet processing apparatus. It is configured such that it can be accessed as needed by at least one operator within the scope or within the scope of maintenance work.

  The object of the present invention is to provide an advantage in maintenance work or setting change work that is likely to occur within the operating range of the sheet processing apparatus, is excellent in terms of structural strength, and is easily manufactured from the viewpoint of finishing and assembly. It is possible to provide a transport table which can be used in particular in a sheet processing apparatus.

According to the present invention, the above-described problem extends in the longitudinal direction at the assembly position and parallel to the movement path of the sheet, and guides the sheet according to the movement path of the sheet. A base body having a table upper side and a table back side opposite to the movement path of the sheet; and a holding portion formed to hold the base body at the assembly position, and the sheet is conveyed by the sheet conveying means. A transport table for feeding sheets in a sheet moving direction , wherein the base body has a hollow shape and includes at least one passage extending along the sheet moving direction. A plurality of longitudinal mold members arranged adjacent to each other in the width direction, and having a hollow shape and including at least one passage extending in a direction orthogonal to the sheet moving direction and adjacent to each other. Less than multiple longitudinal molds arranged Also the lateral member connected to one end, is configured at least every part by the passage of the longitudinal type material, they are communicated with each other communicating the passage of the lateral member,
The sheet processing is characterized in that air can be led into and out of a region formed between the movement path of the sheet and the upper side of the transport table via the passage of the longitudinal mold material. This is solved by a transport table that feeds sheets of paper in the apparatus.

With the above-described configuration, a transport table having a passage through which air passes can be provided in a simple manner, and the passage of the transport table is directly formed by the longitudinal material and the lateral material that constitute the base body of the transport table. According to the present invention, if necessary, a table that can be folded greatly or removed from the machine with a significant reduction in labor compared to conventional transport tables, and can be easily formed even in large shapes. Can be provided. Furthermore, it is possible to eliminate expensive auxiliary means for moving the table that has been required to open the transport table from the folded state with a conventional large transport table. With the solution according to the present invention, the occupied space required for the table can also be reduced. This is because the shaft and the circular pipe structure that have been provided under the table until now can be at least considerably omitted.

Further, according to the above configuration, the positive pressure or the negative pressure applied to the passage can be applied to the passage extending in the sheet moving direction of the longitudinal mold portion by an easy method. Further, the transport table includes a plurality of horizontal members connected to both ends of the plurality of longitudinal mold members, and at least one of the plurality of longitudinal mold members and the plurality of lateral mold members includes a plurality of longitudinal passages divided by a partition wall . A hollow shape is preferred. Appropriate pressures can be applied separately to the specific air introduction area and air discharge area (or their small passages) above the table via these divided longitudinal passages. Furthermore, the base body can be reliably reinforced by the partition wall that divides these longitudinal passages.

The longitudinal mold material and the horizontal mold material having a hollow shape are parallel to the movement path of the sheet and have a width in a direction perpendicular to the longitudinal direction of the longitudinal mold material and the lateral mold material. It is preferable that the thickness of the paper be greater than the thickness in the direction perpendicular to the movement path. The entire base body of the transport table, or at least a substantially flat portion of the base body, can be formed in an advantageous manner by means of a plurality of longitudinal and horizontal molds which are connected laterally to one another.

According to a particularly preferred embodiment of the present invention, the transport table has a suction belt table structure including at least one suction passage formed in at least one of the plurality of longitudinal mold members . In that case, the suction passage extends adjacent to the movement path of the suction belt. The guide structure of the suction belt can also be directly constituted by the longitudinal type material and the horizontal type material . This guide structure of the suction belt is formed in a longitudinal groove or a longitudinal recess of the longitudinal material and the lateral material , which are opposed to each other below the sheet contact surface of the transport table. The longitudinal grooves of the longitudinal mold and the lateral mold are further provided with other longitudinal grooves, and the movement characteristics particularly effective for the suction belt moving in the longitudinal grooves by the longitudinal grooves. Produces exhaust characteristics.

The addition to the longitudinal-type material and horizontal members are used to form the base body, the base body comprises also pre Symbol suction belt guide structure plate member connected to one of said longitudinal type material to form a. This plate member can have a sandwich structure including an upper cover layer and a lower cover layer having, for example, a foam material or a honeycomb material. The plate member can be formed such that the cover layer of the plate member is connected to the terminal edge of the plate member. In that case, the plate member is partitioned by extrusion member at its edge, the extrusion member is housed between the lower cover layer and the upper cover layers. According to a particularly preferred embodiment of the present invention, the plurality of longitudinal members and the plurality of horizontal members forming the base body are at least partially directed toward the upper side of the base body, that is, in the movement path of the sheet. It is exposed towards. In a region exposed toward the upper side of the base body, that is, toward the sheet moving path, at least one of the plurality of longitudinal members and at least one of the plurality of lateral members are provided with grooves, particularly longitudinal grooves. Are formed, and these grooves extend in the moving direction of the sheet. With this configuration, an effective movement characteristic with respect to the conveyance of the sheet is generated.

A sliding layer or guide layer of ceramic material, metal, wood or plastic material may be provided on the upper side of the transfer table. It is preferable to provide a structure, particularly a longitudinal groove, that can be easily formed in the longitudinal direction and the lateral material constituting the conveyance table and can be attached in the conveyance direction.

The holding unit for fixing the transport table in the sheet processing apparatus is directly realized by being constituted by a plurality of horizontal members .

According to a particularly advantageous embodiment of the invention, it is possible to change the length or width of the transport table by varying the widths or lengths of the longitudinal and horizontal members . In particular, the width of the transport table can be set appropriately by arranging an appropriate number of longitudinal members adjacent to each other and connecting them together. The required length along the moving direction of the sheet of the transport table is achieved by appropriately adjusting the length of the longitudinal mold member extending along the moving direction . The horizontal type material is appropriately connected to the end face of the longitudinal type material , while air can be led into and out of the longitudinal path of the longitudinal type material . Furthermore, the bending strength of the transfer table is improved by the horizontal member.

By means of the principle on which the invention is based, a modular construction system for a transport table, in particular a suction belt table, can be provided in an advantageous manner. This module structure system is a structure that constitutes a transfer table, and includes a passage, and is based on a plurality of longitudinal mold members that are installed along the moving direction of the sheet at the assembly position. A conveyance table that can adjust the width in the direction orthogonal to the moving direction of the sheet by appropriately changing the number of longitudinal molds adjacent in the width direction of the conveyance table by adopting a modular structure for the conveyance table. Can be provided. In this module structure system , at least one of the plurality of longitudinal members is a balance member, and the width of the transfer table can be set by changing the length of the balance member in the width direction. The modular structure system may also include a terminal edge mold material configured so that the transport table can be easily attached to the sheet processing apparatus. The suction belt drive structure can be a module that can be mounted on a base body of a table formed in a required width .

In particular, it is preferable to provide a connecting portion that can easily attach the suction belt driving device as the sheet conveying means to the conveying table together with the horizontal material. The suction belt driving device can also be integrated with the horizontal material. For this purpose, it is preferable to form a passage capable of accommodating a drive shaft or a servo drive unit for driving the suction belt, particularly a passage having a circular cross section in the horizontal member.

  Further details and features of the present invention will become apparent from the following description taken in conjunction with the accompanying drawings.

FIG. 1 is a diagram showing a schematic configuration of a transport table used when a sheet is fed by a sheet processing apparatus. The transport table includes a single base body that extends in the longitudinal direction and parallel to the movement path of the sheet at the assembly position. The base body includes a table upper side for allowing the sheet to pass therethrough and a table back side (not shown) on the side opposite to the sheet moving path. The base body is composed of a plurality of longitudinal molds 1, 2, and 3. In that case, these longitudinal mold members 1 to 3 are formed to have a plurality of passages between the upper side of the table and the back side of the table.

These long-type material 1, 2 and 3, extends along the moving direction BLR of the sheet, the longitudinal direction in the passage in the embedded position of the transport table is configured, the movement of these passages sheet It extends along the direction BLR.

Longitudinal materials 1, 2, and 3 used to form a transport table and arranged parallel to the sheet movement direction BLR, and horizontal materials 4, which close these longitudinal materials 1, 2 and 3 on the end face side. 5 is formed as a hollow mold having a hollow structure, and the hollow portion is divided into a plurality of longitudinal passages by a partition wall . The longitudinal mold members 1, 2, and 3 extending along the sheet movement direction BLR are parallel to the sheet movement path and orthogonal to the longitudinal direction of the longitudinal mold members 1, 2, and 3. The width in the direction is formed to be larger than the thickness in the direction perpendicular to the sheet moving path. Through the passage formed in the longitudinal mold members 1, 2 and 3 and the passage formed in the lateral mold members 4 and 5, constant air is supplied to an intermediate space formed between the sheet to be transported and the upper side of the table. While being introduced, the air introduced via the passage can be exhausted.

  In the illustrated embodiment, the transport table is configured as a so-called suction belt table, and includes two suction belts 6 and 7 exemplarily. These suction belts, as will be understood from FIG. 2 described in more detail below, are flat belts with holes formed and are driven in synchronism via a drive device (not shown).

These longitudinal mold materials 1, 2, and 3 are basic mold materials. In that case, these basic mold materials can be appropriately arranged in the horizontal direction to produce transfer tables having different table widths b. By shortening these basic molds as necessary, the length L of the transport table measured in the sheet movement direction BLR can also be set as appropriate. These longitudinal molds 1, 2, 3 are preferably detachable, and are preferably connected to each other by horizontal molds 4, 5. Two or more of the longitudinal type material and the horizontal type material shown here may be spot welded at S in FIG. 1 and connected to each other.

In the conveyance table shown here, the base body includes a plate member 8 in addition to the longitudinal mold members 1, 2, and 3. This plate member 8 has a sandwich structure here, and is connected to the longitudinal mold 3 forming the suction belt guide structure here through a longitudinal beam embedded in the edge region.

  In a region between the two suction belts 6 and 7, a nozzle device 9 for blowing or sucking is provided on the horizontal member 4 located on the upstream side in the sheet moving direction. The nozzle device 9 can adjust the cushioning property of the air cushion formed between the sheet traveling on the transport table and the upper side of the table by introducing air or discharging air. That is, a certain amount of air can be introduced into a gap region formed between the sheet and the upper side of the table, or another through opening that can discharge a certain amount of air from the gap region. It can also be provided inside the plate member 8.

FIG. 2 is a schematic view showing a cross section of a preferred embodiment of the longitudinal member 3 to which the suction belts 6 and 7 are attached. The longitudinal mold 3 includes a transport table upper side where grooves are formed by fine longitudinal webs 10 and suction belt guide grooves 11. Inside the suction belt guide groove 11, a guide strip 12 made of a material that reduces friction, for example, Teflon (registered trademark), is accommodated. The guide strip 12 is formed with a plurality of longitudinal grooves 13, 14, 15, 16 that can uniformly suck the air flowing through the suction belt 6. A plurality of holes 17 and 18 are formed in the bottom of the suction belt guide groove 11 formed in the longitudinal mold 3, and the longitudinal groove formed in the guide strip 12 via these holes 17 and 18. 13 to 16 are communicated with a passage formed in the longitudinal mold member 3.

FIG. 3 shows a cross-sectional view of how to use the longitudinal mold in order to constitute the longitudinal mold extending in the sheet movement direction BLR (see FIG. 1). This longitudinal mold member is provided with a plurality of passages 23, 24, 25 divided by partition walls 20, 21, 22. A predetermined air pressure (or negative pressure) can be applied to these passages via a pipe structure (not shown).

In this embodiment, the longitudinal passage 25 is located immediately below the suction belt guide groove 11, and negative pressure is applied to the suction belt (see FIGS. 6 and 7 in FIG. 1) advanced in the suction belt guide groove 11. Formed to add. As already described with reference to FIG. 2, grooves are formed on the upper side of the longitudinal mold member by a plurality of longitudinal webs 10, and the movement characteristics of the sheet on the upper side of the table are further improved by these longitudinal webs 10. The

In the longitudinal mold 3, as shown in FIG. 3, connection portions are formed in both longitudinal side regions 26 and 27. By this connection portion, the longitudinal mold member can be connected to an adjacent longitudinal mold member in which a groove engaged with the connection portion is formed at an accurate position.

FIG. 4 exemplarily shows a region where the longitudinal mold 3 and the horizontal mold 4 are connected. Projections 21 a (22) are formed on the end surfaces of the partition walls 21, 22 of the longitudinal mold 3, and the horizontal mold 4 is attached to the projections 21 a (22) via the locking projections 30. The passages 31 and 32 formed in the horizontal mold member 4 are selectively communicated with the passages 21 of the longitudinal mold member 3 through the lateral holes 33.

  FIG. 5 shows a state in which the conveying table having different width b is formed using the longitudinal mold P1 having the same structure based on the schematic diagram. That is, for example, a plurality of longitudinal molds P1 are connected adjacent to each other in accordance with the required table width b. Preferably, a balance member SP is disposed in the center, and the width b of various transport tables can be continuously adjusted without processing the longitudinal mold P1.

FIG. 6 shows a schematic view of another modified example of the horizontal member 4 which is provided on the side of the end surface of the longitudinal member in the direction crossing the sheet movement direction BLR. . The horizontal member 4 is formed with a plurality of horizontal passages 34, 35, and 36 for introducing air into or discharging air from specific areas of the transfer table. Therefore, the air lead-in / out passage is configured. In the horizontal member 4 shown here, a positioning portion 37 is formed at one edge portion thereof, and for example, a suction belt drive module can be attached to the transport table by the positioning portion 37. The positioning portion 37 can be used for other purposes. In particular, the positioning portion can be formed so that the transport table can be easily fixed to the sheet processing apparatus.

  FIG. 7 shows a schematic cross section of the plate member 8 constituting the transfer table. The plate member 8 has a sandwich structure and includes an upper cover layer 40 and a lower cover layer 41. In this case, a core material made of a foam material or a honeycomb material is provided between the cover layers 40 and 41. The plate member 8 is partitioned by the extrusion member 43 at the edge portion. In this case, the extruded member 43 is accommodated between the two cover layers 40 and 41 described above. A longitudinal passage 44 as an air guide passage is formed in the extrusion molding material 43, and air can be supplied to a certain region of the plate member 8 through the longitudinal passage. This air supply area is formed by a plurality of lateral holes 45 penetrating from the longitudinal passage 44 toward the core material 42 provided in the extrusion molding material 43. Further, the transverse beam member 47 may be attached to the lower side of the plate member 8. Air can be similarly guided from the inner region of the transverse beam member 47 to other regions in the plate member 8 via the plurality of holes 46.

According to the present invention, a conveyance table, particularly a suction belt table can be manufactured at low cost. According to the transport table of the present invention, weight reduction and high table strength can be achieved, and the size of the transport table can be covered in a wide range by a plurality of standardized longitudinal and horizontal materials . Further, a passage provided for directly introducing and discharging air by the extruded member can be easily formed in the table. Moreover, the conveyance table is made of a longitudinal mold material as a basic mold material, and more preferably, it is composed of two or three types of basic mold material families, so that a conveyance table with different dimensions can be easily provided. The partition formed inside these longitudinal mold members contributes to the improvement of the strength of the transport table, and also functions as a partition plate that divides the interior space of the longitudinal mold member into a large number of passages. In addition, the longitudinal grooves formed in the longitudinal mold material can form a surface structure that is advantageous from the viewpoint of sheet guide characteristics on the transport table, and the material can be removed, or other additional processing can be performed. do not need.

It is a schematic perspective view which shows the 1st Example of a conveyance table. It is the schematic which shows the cross section of the suitable Example of the longitudinal mold | type material 3 with which the suction belts 6 and 7 are mounted | worn. It is a cross-sectional view of a longitudinal mold member having a plurality of longitudinal passages forming the upper side of the table. It is a cross-sectional view which exemplarily shows a region where the longitudinal mold member 3 and the horizontal mold member 4 are connected. It is a schematic diagram which shows a mode at the time of forming the conveyance table of different width | variety b using the longitudinal mold material P1 of the same structure. It is the schematic which shows the other modification of the horizontal type | mold material 4 provided in a row by the direction crossing the sheet | seat movement direction BLR, and connecting with the end surface side of a longitudinal type material . It is a figure which shows the schematic cross section of the plate member 8 which comprises a conveyance table.

Explanation of symbols

1,2,3 longitudinal type material 4,5 lateral members 6 and 7 the suction belt 8 the plate member 9 nozzle device 10 longitudinal web 11 the suction belt guide grooves 12 guide bead 13, 14, 15, 16 longitudinal grooves 17 and 18 holes SP Balance Member P1 Longitudinal material BLR Movement direction of sheet 20, 21, 22, partition walls 23, 24, 25 Longitudinal material passage 30 Locking projections 31, 32 Horizontal material passages 34, 35, 36 Horizontal passage 37 Positioning portion 40 Upper portion Cover layer 41 Lower cover layer 43 Extrusion member 44 partitioning plate member 8 Longitudinal passage 45 of extrusion member Horizontal hole 46 Hole 47 Horizontal beam member

Claims (15)

The upper side of the table that extends in the longitudinal direction at the assembly position and parallel to the movement path of the sheet and guides the sheet according to the movement path of the sheet and the movement path of the sheet Comprises a base body having an opposite table back side, and a holding portion formed to hold the base body in the assembled position, and the sheet is conveyed in the sheet moving direction (BLR) by the sheet conveying means. A transport table for feeding
The base body is
Having a hollow shape and including at least one passage (23, 24, 25, 44) extending along the sheet movement direction (BLR) and disposed adjacent to the width direction; A plurality of longitudinal molds (1, 2, 3, 8);
It is hollow and has at least one passageway (31, 32; 34, 35, 36) extending in a direction perpendicular to the sheet movement direction (BLR) and is disposed adjacent to the passage. A horizontal member (4, 5) connected to at least one end of the plurality of longitudinal members (1, 2, 3, 8);
Is configured at least part by part,
The passages (23, 24, 25, 44) of the longitudinal mold members (1, 2, 3, 8) and the passages (31, 32; 34, 35, 36) of the lateral mold members (4, 5) communicate with each other. Has been
Via the passages (23, 24, 25, 44) of the longitudinal mold members (1, 2, 3, 8) to the area formed between the movement path of the sheet and the upper side of the transport table A conveyance table characterized in that air can be led in and out. A plurality of horizontal mold members (4, 5) connected to both ends of the plurality of longitudinal mold members (1, 2, 3, 8) , the plurality of longitudinal mold members (1, 2, 3, 8) and the plurality of horizontal mold members The transport table according to claim 1 , wherein at least one of (4, 5) comprises a plurality of longitudinal passages divided by partition walls (20, 21, 22). The longitudinal molds (1, 2, 3, 8) and the horizontal molds (4, 5), which are hollow, are parallel to the movement path of the sheet, and the longitudinal molds (1, 2, 2). 3, 8) and the width of the horizontal member (4, 5) in the direction perpendicular to the longitudinal direction is formed to be larger than the size in the direction perpendicular to the movement path of the sheet. The conveyance table according to claim 1 or 2 , wherein The conveyance table has a suction belt table structure including at least one suction passage (25) formed in at least one of the plurality of longitudinal mold members (1, 2, 3, 8), and the suction passage (25 Is extended adjacent to the moving path of the suction belt. 4. The transport table according to any one of claims 1 to 3 . 5. The transport table according to claim 4 , wherein the transport table includes a suction belt guide structure, and the suction belt guide structure is constituted by one of the longitudinal mold members (3). The said base main body is equipped with the board member (8) connected to one said said longitudinal type | mold material (3) which forms the said suction belt guide structure , The any one of Claims 1-5 characterized by the above-mentioned. Transport table. The conveyance table according to claim 6 , wherein the plate member (8) has a sandwich structure including an upper cover layer (40) and a lower cover layer (41) . The plate member (8) is partitioned by extrusion molding member (43) at its edge, the extrusion member (43), between the lower cover layer (41) and said upper cover layer (40) The conveyance table according to claim 7 , wherein the conveyance table is accommodated . Wherein the plurality of longitudinal type material (1, 2, 3, 8) and the lateral member (4, 5), according to claim 1-8, characterized in that it is at least partially exposed toward the base body upper The transfer table according to any one of the preceding claims. At least one of the plurality of longitudinal mold members (1, 2, 3, 8) and the region of the horizontal mold member (4, 5) forming the upper side of the base body in the sheet moving direction of the sheet. conveying table according to any one of claim 1 to 9, characterized in that grooves extending is formed. The said holding | maintenance part is comprised with the said horizontal type | mold material (4, 5), The conveyance table in any one of Claims 1-10 characterized by the above-mentioned. At least one of the plurality of longitudinal mold members ( 1, 2, 3, 8) is a balance member (SP), and the width of the transport table is changed by changing the length of the balance member (SP) in the width direction. conveying table according to any one of claim 1 to 11, characterized in that the (b) to be set. The transport table according to any one of claims 1 to 12 , wherein the transport table includes a connecting portion for connecting a suction belt driving device as the sheet transport means . 14. The conveyance table according to claim 13 , wherein the suction belt driving device is connected to the horizontal member (4, 5). In the claims 1-14 modular system of the transport table comprising at least said plurality of longitudinal type material constituting the conveyance table according to item 1 (1, 2, 3, 8) and the lateral member (4, 5) of, The width of the sheet in the direction orthogonal to the sheet moving direction can be adjusted by changing the number of the plurality of longitudinal mold members (1, 2, 3, 8) arranged adjacent to each other in the width direction. A modular structure system for a transport table, characterized in that

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