Compression machine

Abstract

A compressive load with a 180-degree offset is applied to the drive shaft to ensure effective and stable driving force. [Solution] The compressor comprises a compression chamber 4, a plunger 5 that reciprocates back and forth within the compression chamber 4 to compress material supplied to the front portion, and a crank mechanism 7 that reciprocates back and forth on a connecting rod 6. The crank mechanism 7 has a crank pin 11, a crank arm 12 that supports the crank pin 11 at its tip, a drive shaft 13 to which the base of the crank arm 12 is attached, and a power transmission member 14 attached to the drive shaft 13. Two sets of compression mechanisms A and B, each equipped with the compression chamber 4, plunger 5, connecting rod 6, and crank mechanism 7, are arranged in parallel, and the crank mechanisms 7 of the two sets of compression mechanisms A and B share a single drive shaft 13, a shared power transmission member 14 fitted and fixed to the center of the drive shaft 13, and both sets of crank arms 12 are attached to both ends of the drive shaft 13 with a 180-degree offset.

Description

[Technical Field]

[0001] The present invention relates to a compression and volume reduction machine for compressing film, paper, laminated paper, waste paper, and the like. [Background technology]

[0002] The device disclosed in Patent Document 1 for compressing and reducing the volume of compressible materials such as waste film comprises a rectangular or cylindrical compression chamber having a waste film suction hopper erected above a supply port, a compression and volume reduction plunger inserted rearward of the supply port so that it can move back and forth, a waste film suction, accumulation and filling means provided around the supply port of the compression chamber and around the lower part of the suction hopper, a heating chamber of the same shape connected to the front end of the compression chamber and equipped with a heater on its outer surface, a forming and cooling chamber of the same shape connected to the front end of the heating chamber, a film weld cutting device provided between the forming and cooling chamber and the heating chamber, and a crank device for moving back and forth, installed rearward of the compression chamber and with a crankshaft connected to the rear end of the plunger (Claim 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-321217 Summary of the Invention [Problem to be solved by the invention]

[0004] The above-mentioned conventional technology uses a single compression mechanism equipped with a compression chamber, plunger, and crank device, and can continuously compress and reduce the volume of the material to be compressed. However, the plunger's compression stroke occurs once per rotation (360 degrees) of the crankshaft, and during the plunger's return stroke, there is almost no load on the crankshaft, making it difficult to use the driving force effectively and stably.

[0005] An object of the present invention is to provide a compressor that can solve the problems of the prior art.

[0006] The present invention aims to provide a compression volume reducer in which the compression stroke and return stroke by the plungers of two compression mechanisms are performed with a phase difference of 180 degrees, thereby enabling effective and stable use of the driving force of the drive shaft. [Means for solving the problem]

[0007] A specific means for solving the problems of the present invention is a compression volume reducer comprising a compression chamber 4 connected to a front portion of which is a supply tube 3 for supplying a material to be compressed, a plunger 5 that moves back and forth within the compression chamber 4 to compress the material to be compressed that has been supplied to the front portion, a connecting rod 6 whose front end is connected to the plunger 5, and a crank mechanism 7 that moves the connecting rod 6 back and forth, wherein the crank mechanism 7 has a crank pin 11 that passes through the base end of the connecting rod 6, a crank arm 12 that supports the crank pin 11 at its tip, a drive shaft 13 to which the bases of both crank arms 12 are attached, and a power transmission member 14 provided on the drive shaft 13, Two sets of compression mechanisms A and B, each including the compression chamber 4, plunger 5, connecting rod 6, and crank mechanism 7, are arranged in parallel. The crank mechanisms 7 of the two compression mechanisms A and B share a single drive shaft 13, a common power transmission member 14 is fitted and fixed to the center of the drive shaft 13, and the crank arms 12 of both sets are attached to both ends of the drive shaft 13 with a 180 degree offset. And, Each of the two compression mechanisms A and B has a suction hole a formed in the compression chamber 4a at the front of the compression chamber 4 and in the supply cylinder 3, and an air suction chamber 22 surrounding the compression chamber 4a and the supply cylinder 3, the lower part of which is connected to an air blower 24 via a duct 23. The air blower 24 is a single unit and is shared by the air suction chambers 22 of the two compression mechanisms A and B. [Effects of the Invention]

[0008] According to the present invention, the compression stroke and return stroke by the plungers of the two compression mechanisms can be performed with a phase difference of 180 degrees, and the driving force of the drive shaft can be used effectively and stably. Furthermore, when one set of plungers 5 is undergoing a compression stroke, air suction from the front of the compression chamber 4 ceases, but at the same time the other set of plungers 5 is undergoing a return stroke and is affected by an increased air suction force, thereby improving the efficiency of suction and supply of the compressed material in the other set of compression chambers 4. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is an overall front view showing an embodiment of the present invention. [Figure 2] FIG. [Figure 3] FIG. 2 is a cross-sectional view of a main part of a compression mechanism. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0011] 1 to 6 show a compression volume reduction machine 1 that compresses film, paper, laminated paper, waste paper scraps thereof, and the like.

[0012] In Figures 1, 4 to 6, the symbol K indicates a machine case that surrounds the entire compression volume reduction machine 1, and an upper installation stand L1 and a lower installation stand L2 are provided within this machine case K, and two sets of compression mechanisms A and B are mounted in parallel on the upper installation stand L1, and the lower installation stand L2 is mounted with drive motors N for the compression mechanisms A and B, a filter F, an air blower 24 and a drive motor M that drives it, etc.

[0013] Each of the two compression mechanisms A and B includes a cylindrical compression chamber 4 with a square cross section, a plunger 5 inserted into the compression chamber 4 so as to be able to move back and forth, a connecting rod 6 whose front end is connected to the plunger 5, and a crank mechanism 7 that moves the connecting rod 6 back and forth.

[0014] The front part of the compression chamber 4 is a compression chamber 4a, which is open at the top and connected to the bottom of the supply tube 3, and is a space into which the material to be compressed can be supplied and filled from the supply tube 3, and which compresses the filled material to be compressed.

[0015] A suction hole a is formed in the compression chamber 4a of the compression chamber 4 and in the lower part of the supply cylinder 3, and an air suction chamber 22 is provided surrounding the compression chamber 4a and the lower part of the supply cylinder 3 to suck air through this suction hole a.

[0016] The lower part of the air suction chamber 22 is connected to a filter F and an air blower 24 via a duct 23, and air suction by the air blower 24 creates a negative pressure in the compression chamber 4a of the compression chamber 4 and the supply tube 3, so that the compressed material transported to the upper part of the supply tube 3 can be supplied and filled into the compression chamber 4a.

[0017] The filter F, air blower 24, and drive motor M that drives them are disposed below the compression chambers 4 of the two compression mechanisms A and B, and there is one for each, which is shared by the air suction chambers 22 of the two compression mechanisms A and B. That is, the two ducts 23 of the two air suction chambers 22 are connected to one filter F, and air is sucked in by one air blower 24, creating a negative pressure.

[0018] In FIG. 3, the plunger 5 has a rectangular cylindrical body 5a at the front end thereof, a pressing body 5b and The upper partition plate 5c is provided at the top, and a connecting rod connector 5d is provided at the rear end. The upper partition plate 5c sets the upper limit for compressing the material supplied from the supply tube 3 into the compression chamber 4a, and the pressing body 5b presses and compresses the material whose upper limit is limited by the upper partition plate 5c.

[0019] The front end of a connecting rod 6 is connected to the connecting rod coupler 5d via a connecting pin 28. The connecting rod 6 is part of a crank mechanism 7 that moves it back and forth.

[0020] 1 to 5, the crank mechanism 7 includes a crank pin 11 that penetrates the base end of the connecting rod 6, a crank arm 12 that supports the crank pin 11 at its tip, a drive shaft 13 that attaches the base of the crank arm 12 to the shaft end, and a power transmission member 14 that is fitted and fixed to the center of the drive shaft 13.

[0021] The crank mechanism 7 also has a countershaft 16 arranged concentrically with the drive shaft 13, and a counter arm 17 whose base is attached to the countershaft 16 and whose tip supports the crank pin 11.

[0022] The two sets of crank mechanisms 7 of compression mechanisms A and B share a drive shaft 13 and a power transmission member 14, and both sets of crank arms 12 are attached to both ends of a single drive shaft 13 with a 180-degree offset.

[0023] A support mechanism 18 that rotatably supports one end of the single drive shaft 13 and one countershaft 16 is provided corresponding to each of the two crank mechanisms 7, and each of the two support mechanisms 18 has a main bearing 18A that supports the drive shaft 13 between the power transmission member 14 and the crank arm 12, and a counter bearing 18B that supports the countershaft 16.

[0024] The drive motor N that transmits power to the power transmission member 14 is located below the crank mechanisms 7 of the two sets of compression mechanisms A and B. When the drive motor N rotates the power transmission member 14 and the drive shaft 13, the two sets of crank arms 12 rotate simultaneously. Due to a phase difference of 180 degrees, one connecting rod 6 causes the plunger 5 to perform a compression stroke, and the other connecting rod 6 causes the plunger 5 to perform a return stroke, so that a compression load is always applied to the single shared drive shaft 13 during 360-degree rotation.

[0025] 1, 2 and 4, reference numeral 30 denotes a proximity sensor that detects the up and down movement of the connecting rod 6, and reference numeral 31 denotes a roll ring that tensions a chain 32 that is hung between the power transmission member 14 and the drive motor N.

[0026] In the two compression mechanisms A and B, the material to be compressed is compressed by the plunger 5 once per rotation of the drive shaft 13, and the compressed material is pushed out from the compression chamber 4a to the discharge chamber 40 in front.

[0027] This discharge chamber 40 is provided with a heater device 41 and a cutter device 42, and the compressed material that is intermittently extruded from the compression chamber 4a is melted from the outer periphery by the heater device 41 to form a compressed continuous material in the shape of a square pillar, and then the continuous compressed material is cut by the cutter device 42 to a size suitable for reuse.

[0028] Furthermore, the discharge chamber 40 is provided, in front of the cutter device 42, with an adjustment mechanism 47 having a shaping plate 46 and a length measuring mechanism 48.

[0029] The adjustment mechanism 47 adjusts the shape of the shaping plate 46 in the longitudinal direction along the ceiling wall and one side wall of the discharge chamber 40. The forming plate 46 is elastically pushed inward via a spring and a screw 47a to narrow the inside of the discharge chamber 40, providing resistance to the movement of the continuous compressed objects in the discharge chamber 40, enabling the objects to be compressed in the compression chamber 4a, and also forming the cross-sectional area of ​​the continuous compressed objects into a size suitable for reuse.

[0030] The length measuring mechanism 48 measures the length of the continuous compressed material moving in the discharge chamber, and enables the timing of cutting by the cutter device 42 to be set so that the length is suitable for reuse.

[0031] The compression chamber 4 and the discharge chamber 40 are horizontally linear and two sets of them are arranged in parallel, and are mounted on an upper installation stand L1 together with the air suction chamber 22 and the cutter device 42.

[0032] The air blower 24 and filter F, which create a negative pressure in the air suction chamber 22, are mounted on the lower installation stand L2 below the compression chamber 4, the discharge chamber 40, the air suction chamber 22, and the heater device 41, and the exhaust nozzle 44 connected to the air blower 24 rises from the side of the air blower 24, passes beside the heater device 41, and protrudes from the top of the machine case K. The drive motor M of the air blower 24 is disposed below the cutter device 42.

[0033] The compression and volume reduction operation of the compression and volume reduction machine 1 is carried out in two sets of compression mechanisms A and B, in which the material to be compressed that has been put into the supply tube 3 is supplied into the compression chamber 4a of the compression chamber 4 by the air suction action of the air suction chamber 22 by the air blower 24, and the material to be compressed is compressed in the compression chamber 4a by the plunger 5 that is moved forward by the crank mechanism 7, and the compressed material is pushed out into the discharge chamber 40.

[0034] The two sets of crank mechanisms 7 share the drive shaft 13 and power transmission member 14, and the crank arms 12 attached to both ends of the drive shaft 13 are offset by 180 degrees. Therefore, when one set of plungers 5 is on a compression stroke, the other set of plungers 5 is on a return stroke, and the two sets of plungers 5 are alternately subjected to the load of the compression action, but the single drive shaft 13 is constantly under load during its 360-degree rotation, so no kinetic energy is wasted.

[0035] Furthermore, when one set of plungers 5 is undergoing a compression stroke, the front of the plunger 5 enters the compression chamber 4a, pushing out the air contained in the material being compressed. When the suction hole a of the compression chamber 4a is blocked, the air blower 24's action to create a negative pressure in the air suction chamber 22 is no longer effective. However, since one air blower 24 is shared, this will affect the air suction chamber 22 of the other set, increasing the negative pressure in the air suction chamber 22 and compression chamber 4a of the other set and improving the efficiency of supplying the material to be compressed into the compression chamber 4a.

[0036] In the above-described embodiment, the compression volume reducer 1 includes a compression chamber 4 to which a supply tube 3 for supplying a material to be compressed is connected at its front portion, a plunger 5 that moves back and forth within the compression chamber 4 to compress the material to be compressed supplied to the front portion, a connecting rod 6 whose front end is connected to the plunger 5, and a crank mechanism 7 that moves the connecting rod 6 back and forth. The crank mechanism 7 includes a crank pin 11 that penetrates the base end of the connecting rod 6, a crank arm 12 that supports the crank pin 11 at its tip, and both cranks. The compressor / volume reducer has a drive shaft 13 to which the base of the crank arms 12 is attached, and a power transmission member 14 provided on the drive shaft 13. Two sets of compression mechanisms A and B, each equipped with the compression chamber 4, plunger 5, connecting rod 6 and crank mechanism 7, are arranged in parallel, and the crank mechanisms 7 of the two sets of compression mechanisms A and B share a single drive shaft 13. A shared power transmission member 14 is fitted and fixed in the center of the drive shaft 13, and both sets of crank arms 12 are attached to both ends of the drive shaft 13 with a 180-degree offset.

[0037] With this configuration, the compression stroke and return stroke by the plungers 5 of the two compression mechanisms A and B can be performed with a phase difference of 180 degrees, and the driving force of the drive shaft 13 can be used effectively and stably.

[0038] In the above embodiment, the compression volume reducer 1 has two crank mechanisms 7 of compression mechanisms A and B, each of which has a countershaft 16 arranged concentrically with the drive shaft 13, a counter arm 17 whose base is attached to the countershaft 16 and whose tip supports the crank pin 11, and two sets of support mechanisms 18 that rotatably support the one drive shaft 13 and the two countershafts 16, and each of the two sets of support mechanisms 18 has a main bearing 18A that supports the drive shaft 13 between the power transmission member 14 and the crank arm 12, and a counter bearing 18B that supports the countershaft 16.

[0039] This configuration shortens the two-point support span of one drive shaft 13, enabling smooth and stable support.

[0040] Furthermore, in the above embodiment, the compression volume reducer 1 has two compression mechanisms A and B, each of which has a suction hole a formed in the compression chamber 4a at the front of the compression chamber 4 and in the supply cylinder 3, and an air suction chamber 22 surrounding the compression chamber 4a and the supply cylinder 3, and the lower part of this air suction chamber 22 is connected to an air blower 24 via a duct 23, and there is one air blower 24 which is shared by the two compression mechanisms A and B.

[0041] With this configuration, when one set of plungers 5 is on its compression stroke, air is not sucked from the front of the compression chamber 4, but at the same time, the other set of plungers 5 is on its return stroke and is affected by an increased air suction force, thereby improving the efficiency of suction and supply of the compressed material in the other set of compression chambers 4.

[0042] Furthermore, in the above embodiment, the compression volume reducer 1 has the air blower 24 and the drive motor M that drives the air blower 24 arranged below the compression chambers 4 of the two sets of compression mechanisms A and B, and the drive motor N that transmits power to the power transmission member 14 arranged below the crank mechanisms 7 of the two sets of compression mechanisms A and B.

[0043] With this configuration, two sets of compression mechanisms A and B, each equipped with a compression chamber 4, a plunger 5, a connecting rod 6, and a crank mechanism 7, are arranged in parallel, which requires a large area to occupy, but allows for effective use of the space below them.

[0044] The present invention is not limited to the above-described embodiment, and the shapes, configurations, and combinations of the components can be changed.

[0045] For example, although the compression chamber 4 and the plunger 5 are formed to have a square cross section, they may also be formed to have a circular cross section. [Explanation of symbols]

[0046] 1 Compressor 3 Supply tube 4 compression chambers 4a compression chamber 5 plunger 5a main body 5b Pressing body 5c Upper partition board 5d connecting rod connection 6 connecting rod 7 Crank mechanism 11 Crank pin 12 crank arms 13 Drive shaft 14 Power transmission components 16 Secondary shaft 17 Secondary Arm 18 Support mechanism 18A Main bearing 18B Sub bearing 22 Air suction chamber 23 Duct 24 Air blower 28 connecting pin 30 Proximity Sensor 31 Roll Ring 32 Chain 40 Exhaust chamber 41 Heater device 42 Cutter device 44 Exhaust nozzle 46 Molded plate 47 Adjustment mechanism 47a Screw 48 Length measuring mechanism A,B compression mechanism F Filter K machine case L1 Upper installation stand L2 Lower installation stand M drive motor N drive motor a Suction hole

Claims

1. The compressor / volume reducer comprises a compression chamber (4) connected to a front portion of which is a supply tube (3) for supplying a material to be compressed, a plunger (5) that moves back and forth within the compression chamber (4) to compress the material to be compressed supplied to the front portion, a connecting rod (6) whose front end is connected to the plunger (5), and a crank mechanism (7) that moves the connecting rod (6) back and forth, the crank mechanism (7) having a crank pin (11) that penetrates the base end of the connecting rod (6), a crank arm (12) that supports the crank pin (11) at its tip, a drive shaft (13) to which the base of the crank arm (12) is attached, and a power transmission member (14) provided on the drive shaft (13), Two sets of compression mechanisms (A, B) each including the compression chamber (4), plunger (5), connecting rod (6) and crank mechanism (7) are arranged in parallel, The crank mechanisms (7) of the two sets of compression mechanisms (A, B) share one drive shaft (13), a shared power transmission member (14) is fitted and fixed to the center of the drive shaft (13), and the crank arms (12) of both sets are attached to both ends of the drive shaft (13) with a 180-degree offset. In each of the two compression mechanisms (A, B), a suction hole (a) is formed in the compression chamber (4a) at the front of the compression chamber (4) and in the supply cylinder (3), and an air suction chamber (22) is provided surrounding the compression chamber (4a) and the supply cylinder (3), and the lower part of this air suction chamber (22) is connected to an air blower (24) via a duct (23). The compressor / volume reducer is characterized in that the air blower (24) is one unit and is shared by the air suction chambers (22) of the two sets of compression mechanisms (A, B).

2. Each of the crank mechanisms (7) of the two compression mechanisms (A, B) has a countershaft (16) arranged concentrically with the drive shaft (13), a counter arm (17) whose base is attached to the countershaft (16) and whose tip supports the crank pin (11), and two sets of support mechanisms (18) that rotatably support the one drive shaft (13) and the two countershafts (16), 2. The compressor according to claim 1, wherein each of the two sets of support mechanisms (18) includes a main bearing (18A) that supports the drive shaft (13) between the power transmission member (14) and the crank arm (12), and a secondary bearing (18B) that supports the secondary shaft (16).

3. The air blower (24) and a drive motor (M) for driving the air blower (24) are disposed below the compression chambers (4) of the two sets of compression mechanisms (A, B), The compression volume reducer according to claim 1, characterized in that the drive motor (N) that transmits power to the power transmission member (14) is arranged below the crank mechanisms (7) of the two sets of compression mechanisms (A, B).

Images