JPS634639Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in the frame structure of a vertical band saw for cutting frozen foods.

The frame of this type of vertical bandsaw machine is made of aluminum alloy, and the storage chamber for the driven pulley provided at the top and the storage chamber for the driving pulley provided at the bottom are in communication with each other through a hollow support. The pulley storage chamber is integrally cast in a cantilevered manner, and the front openings of both storage chambers are usually provided with opening/closing doors.

However, when the driven pulley is pulled up to strongly tension the band saw that is hung on both pulleys, the hollow support is erected at a position eccentric to the left or right end by a certain distance from the pulled up position. Because of this, the cantilevered upper driven pulley storage chamber receives the tension of the band saw, and tends to be distorted and deformed as if tilting downward from the free end side that is not supported by the support. . In that case, the driven pulley storage chamber and the hollow support communicating therewith are all front-opening types with opening/closing doors, and the above-mentioned lifting force is applied from a rear position of the band saw relative to the driven pulley. Therefore, the driven pulley storage chamber will also tilt forward at the same time.
As a whole, it ends up being improperly deformed as if it were being twisted. If such a deformation of the frame occurs, since the driven pulley is suspended in its storage chamber, the band saw will easily come off the pulley, impeding its stable circular movement. It turns out. Even if this is not the case, frozen foods such as meat and fish contain oil, fat, and moisture, and their chips are difficult to fall off by themselves and stick to the band saw or pulley, making it easy for the band saw to slip out of the pulley. If such improper deformation occurs even slightly, the problem of bandsaw falling off becomes significant.

The present invention has been improved in order to solve these problems, and its specific configuration will be described in detail based on the illustrated embodiment. In Fig. 4, reference numeral 1 designates the band saw frame, which is integrally cast from aluminum alloy as a whole. Reference numeral 2 denotes a drive pulley storage chamber defined in the lower part of the frame 1, which has a rectangular shape when viewed from the front and rear directions, and a motor storage chamber 3 is adjacent to the rear thereof. Reference numeral 4 denotes a band saw relief notch provided in a part of the upper wall of the driving pulley storage chamber 2. A table for feeding frozen food is installed on the upper wall of the storage chamber 2, but it is not shown.

5 is a motor, 6 is a bearing case fixed to the partition wall 7 of both storage chambers 2 and 3, and a rotating shaft 8 is supported by the bearing. Reference numerals 9 and 10 denote a driving pulley and a transmission pulley that are fixed to both the front and rear ends of the rotating shaft 8 so as to rotate integrally with each other, and a transmission pulley that is suspended between the transmission pulley 10 and the output pulley 11 of the motor 5. A driving pulley 9 is rotationally driven by a motor 5 via a belt 12 . Reference numeral 13 designates a front opening opening/closing door in the driving pulley storage chamber 2, and reference numeral 14 designates a hinge for pivoting the door.

Further, reference numeral 15 designates a mounting base that is integrally cast with the frame 1 or fixed and integrated with the frame 1 at the lower part of both storage chambers 2 and 3. A removal port 16 is opened, and the chip removal port 16 is normally covered by an opening/closing lid 17. Therefore, by removing the opening/closing lid 17 and inserting the chip storage case 18 into the space below the installation base 15, the chips that are shaken off by the rotational centrifugal force of the driving pulley 9 are captured in the storage case 18 located directly below. In addition, cleaning work inside the drive pulley storage chamber 2 can be performed easily and smoothly. Reference numeral 19 denotes a leg seat of the installation base 15, and the installation height and horizontal stability of the installation base 15 can be adjusted by raising and lowering the footrest by screwing it into the installation base 15 or the like.

Furthermore, 20 is a driven pulley storage chamber defined in the upper part of the frame 1, which also has a substantially circular or elliptical shape when viewed from the front and back directions, and a driving pulley storage chamber is provided in a part of the lower wall of the driven pulley storage chamber. A bandsaw relief notch 21 corresponding to the aforementioned notch 4 of No. 2 is provided. The driven pulley 22 in the storage chamber 20 is suspended so that it can be raised and lowered, and by pulling it up, the tension of the endless band saw 23 suspended between the driven pulley 22 and the driving pulley 9 is increased. He is now able to take off his clothes.

That is, the driven pulley 22 is fitted onto the fixed shaft 25 protruding from the holding base 24 so as to be freely rotatable. The holding stand 24 is suspended in a pivot engagement state from a slider 27 that moves up and down along a pair of left and right guide rails 26 installed on the rear wall of the driven pulley storage chamber 20.
The upper end of the slider 27 is a lifting/lowering operation handle rod 2 that is rotatably operated from the outside above the storage chamber 20.
It is screwed together with 8.

29 is a tension coil spring wound around the handle rod 28, so that the handle rod 28
By the rotation operation, the driven pulley 22 can be raised and lowered via the slider 27, and thereby the band saw 23 is tensioned and engaged/disengaged. 30 is a tilt adjustment bolt screwed into the lower end of the holding table 24, and 31 is a lock nut thereof, which presses the tip of the bolt 30 against the rear wall surface of the storage chamber 20 and adjusts the amount of forward and backward movement thereof. This makes it possible to adjust the tilting angle of the holding base 24 on the driven pulley. Incidentally, by pulling out the handle rod 28 upward, all the lifting mechanism assemblies other than the rail 26 can be removed from the storage chamber 20.

32 is the pair of upper and lower pulley storage chambers 2,
20 is a hollow support through which the band saw 23 can be electrically conductive, and therefore it is a hollow support that connects the drive pulley 22 to the left or right side of both storage chambers 2, 20 by a certain distance L from the vertical center line X where the lifting operation handle rod 28 of the driven pulley 22 is located. It is erected on the vertical line Y at a position offset to the end. In other words, the storage chamber 2 of the driven pulley 22
0 is supported by this hollow support 32 in a so-called cantilevered manner from an eccentric position. It goes without saying that the support column 32 forms a part of the frame 1, and therefore is cast integrally with both the storage chambers 2 and 20 so as to have a front opening. 33 is also attached integrally. Reference numeral 34 denotes a door that opens and closes the pillar 32 and the front opening of the driven pulley storage chamber 20 in series, and is also pivotally connected by a hinge 35.

As is particularly clear from the enlarged cross-sectional views of FIGS. 3 and 4, this hollow support 32, together with the opening/closing door 34 pivotally attached to the front surface of the opening, has an elongated cross-section that is approximately rectangular in the front-rear direction (depth direction). A band-shaped partition reinforcing wall 36 is cast in the hollow interior of the band saw 23 so as to stand vertically therein. Then, the interior of the hollow support 32 is formed by the partition reinforcement wall 36.
It is subdivided into a large front chamber a and a small rear chamber b, and the middle part of the band saw 23 is electrically connected to the large front chamber a so that it can circulate.

In that case, as long as the partition reinforcing wall 36 is in the form of a strip perpendicular to the strip surface of the bandsaw 23, the entire reinforcing wall 36 itself, including the backing rib 37, as shown in FIG. Partial standing T
It is also possible to divide chamber b into two smaller chambers, such as in the shape of a letter. In any case, the partition reinforcing wall 36 of the hollow support 32 is formed into a band plate shape orthogonal to the band plate surface of the band saw 23, and has a wall surface with a constant band width W extending along the left-right direction as suggested from FIG. Because of the shape, the driven pulley storage chamber 20
The fixed band width W acts as a reinforcement that can effectively counteract the distortion and deformation of the front end as it tilts downward from the free tip side. While ensuring the chamber a is as large as possible, the bandsaw 23 can also be smoothly conducted into the chamber without any trouble.

In this regard, for example, assuming that the partition reinforcing wall 36 is in the form of a band plate with a constant width extending parallel to the band plate surface of the band saw 23, the driven pulley storage chamber 20 in the upper part is formed by the hollow support 32. Due to its eccentric cantilevered shape, when subjected to a downward deformation force from its unsupported free tip, the reinforcing wall 3
6 only tensions and opposes itself due to its own wall thickness, and as a result, it becomes easily distorted and deformed to follow the above deformation force. Therefore, as a preventive measure, it is necessary to thicken the partition reinforcing wall 36, which also imposes restrictions on the conduction of the bandsaw 23 into the hollow support 32 having a constant thickness.

As described above, in the present invention, the driven pulley storage chamber 20 defined in the upper part of the band saw frame 1 is
A pair of left and right lifting guide rails 26 are fixedly installed,
A slider 27 that moves up and down along the rail 26
The driven pulley holding stand 24 is suspended in a tiltable pivoted state, and the driven pulley 22 loosely fitted to the fixed shaft 25 integrally protruding forward from the holding stand 24 is positioned on its vertical center line X. The driven pulley storage chamber 20 is defined so that it can be raised and lowered from above and outside by the lifting operation handle rod 28 screwed with the slider 27 while the driving pulley is also located at the lower part of the band saw frame 1. A driving pulley 9 rotatably driven by a motor 5 is pivotally supported in the storage chamber 2, and a band saw installation stand 15 is integrated on the bottom of the driving pulley storage chamber 2, and the driven pulley 22 and the driving pulley are An endless band saw 23 that circulates is suspended between the upper and lower sides of 9, and the pair of upper and lower driven pulley storage chambers 20 and driving pulley storage chambers 2 are moved to the left of the vertical center line X by a certain distance L. Or, the bandsaw 23 can be cut by the hollow support 32 located on the vertical line Y, which is biased towards the right end.
For frozen foods, the belt saw 23 is integrated by casting in the eccentric cantilever type of the driven pulley storage chamber 20 so that the middle part can be electrically connected, and the driven pulley storage chamber 20 is tensioned by the lifting operation of the driven pulley 22. In the vertical bandsaw machine, the hollow support 32 is formed in conjunction with the opening/closing door 34 attached to the front face of the opening into a nearly rectangular cross section extending in the front-rear direction, and the hollow interior thereof is arranged perpendicular to the band surface of the bandsaw 23. It is subdivided into a large front chamber a and a small rear chamber b by the related strip-shaped partition reinforcing wall 36, and the band saw 23 is connected to the front chamber a, and the driving pulley storage chamber 2 is installed on the installation stand 15. Since a chip removal port 16 with an opening/closing lid 17 communicating with the saw is provided, the problems of this type of bandsaw machine mentioned at the beginning can be effectively solved despite the simple structure.

That is, referring to the front view of FIG. 1, the pulling force for pulling up the driven pulley 22 to tension the band saw 23 is applied from above the vertical center line X of the driven pulley storage chamber 20 in the upper part of the band saw frame 1. In contrast, the hollow support 32 supporting the driven pulley storage chamber 20 stands on a vertical line Y that is offset from the center line X by a certain distance L to the left or right end position. When the band saw 23 is strongly tensioned, the driven pulley storage chamber 20 is subjected to a straining force such that the driven pulley storage chamber 20 tilts diagonally forward from the free end side that is not supported by the pillar 32, and as a result, both pulleys 9, 22 However, in the present invention, a band-shaped partition reinforcing wall 36 is installed on the hollow support 32 in a relationship perpendicular to the band surface of the band saw 23, so that the reinforcing wall 36 can easily fall off. By using the band width W as a core, it is possible to exert a highly efficient thrusting force against the strain deformation force, which has the effect of rationally solving the above problem.

Moreover, the hollow support 3 is supported by the partition reinforcement wall 36.
2 is subdivided into a large front chamber a and a small rear chamber b, there is no need to make the reinforcing wall 36 itself particularly thick.
Assuming that the thickness is constant, the front chamber a partitioned by this can be secured as large as possible, and the band saw 23 can also be conducted into the front chamber a without being restricted.

The hollow support 32 supports and connects the upper and lower pairs of the driven pulley storage chamber 20 and the driving pulley storage chamber 2 so that they communicate directly with each other. It has a nearly rectangular cross section that is elongated in the front-rear direction, and its interior is divided into two parts, the front chamber a and the rear chamber b, by a strip-shaped partition reinforcing wall 36, so the overall structure is extremely simple and has no undulations. In addition, for frozen foods that require hygiene, the chips and chemicals are removed from the driven pulley storage chamber 20 in the upper part, through the hollow support 32, and then transferred to the driving pulley storage chamber 2 in the lower part. The cleaning effect can be improved with ease of operation. This can be said to be particularly useful for cleaning the rear chamber b, which cannot be opened and closed by the opening/closing door 34.

Further, the installation stand 15 forming the band saw frame 1 is also provided with a chip removal port 16 that communicates with the drive pulley storage chamber 2, and the removal port 16 can be opened and closed by an opening/closing door 17. Therefore, by installing the storage case 18, the collection of the chips and chemicals can be carried out efficiently and smoothly.

Furthermore, assuming that the size of the front chamber a partitioned by the reinforcing wall 36 and the thickness of the hollow support 32 are constant,
Since a rear chamber b is defined behind the front chamber a, the depth of the driven pulley storage chamber 20 is correspondingly increased, and as a result, the elevating guide rail 26 is moved to a position behind the driven pulley 22. , slider 27, holding stand 24, lifting operation handle rod 28
It also has the effect of allowing for extremely rational installation of such devices without any restrictions.

[Brief explanation of drawings]

Fig. 1 is a front view of the vertical bandsaw machine according to the present invention showing the door open state, Fig. 2 is a side sectional view of Fig. 1 showing the door closed state, and Figs. 3 and 4 are A- A
Both enlarged cross-sectional views along line and B-B line, No. 5
The figure is a partially enlarged sectional view of a modification corresponding to FIG. 4. DESCRIPTION OF SYMBOLS 1... Band saw machine frame, 2... Drive pulley storage chamber, 9... Drive pulley, 13, 34... Opening/closing door, 20... Driven pulley storage chamber, 22... Driven pulley, 23... Band saw, 28... ... Lifting operation handle rod, 32 ... Hollow column, 36 ... Partition reinforcement wall, L ... Eccentric distance.

Claims (1)

[Scope of Claim for Utility Model Registration] A pair of left and right lifting guide rails 26 are fixedly installed in a driven pulley storage chamber 20 defined in the upper part of the band saw frame 1, and a slider 27 moves up and down along the rails 26. , the driven pulley holding stand 24 is suspended in a tiltable pivoted state, and the driven pulley 22 loosely fitted to the fixed shaft 25 integrally protruding forward from the holding stand 24 is positioned on its vertical center line X. At the same time, the driven pulley storage chamber 20 is defined so that it can be raised and lowered from the upper outside by the lifting operation handle rod 28 screwed together with the slider 27, while the driving pulley storage chamber 20 is also defined in the lower part of the band saw frame 1. A driving pulley 9 rotatably driven by a motor 5 is pivotally supported in the chamber 2, and a band saw installation stand 15 is integrated with the bottom of the driving pulley storage chamber 2, and the driven pulley 22 and the driving pulley 9 are An endless band saw 23 that circulates is suspended between the upper and lower sides of the belt saw, and the pair of upper and lower driven pulley storage chambers 20 and driving pulley storage chambers 2 are placed a certain distance L to the left of the vertical center line X or The bandsaw 23 is cut by the hollow support 32 located on the vertical line Y, which is biased towards the right end.
For frozen foods, the belt saw 23 is integrated by casting in the eccentric cantilever type of the driven pulley storage chamber 20 so that the middle part can be electrically connected, and the driven pulley storage chamber 20 is tensioned by the lifting operation of the driven pulley 22. In the vertical bandsaw machine, the hollow support 32 is formed in conjunction with the opening/closing door 34 attached to the front face of the opening into a nearly rectangular cross section extending in the front-rear direction, and the hollow interior thereof is arranged perpendicular to the band surface of the bandsaw 23. It is subdivided into a large front chamber a and a small rear chamber b by the related strip-shaped partition reinforcing wall 36, and the band saw 23 is connected to the front chamber a, and the driving pulley storage chamber 2 is installed on the installation stand 15. A frame structure of a vertical bandsaw machine for frozen foods, characterized in that a chip removal port 16 with an opening/closing lid 17 communicating with the shavings opening 16 is provided.