JP3204163U - Balance weight device of molding machine - Google Patents

Abstract

An object of the present invention is to provide a balance weight device of a molding machine that is interlocked with a main slide board that performs a reciprocating motion and that prevents the body from vibrating and the inside of the body from wearing. A balance weight device of a molding machine includes an eccentric mechanism, a drive rod 63, and a weight member 62. The eccentric mechanisms are installed at the left and right ends of the crankshaft 40 transmitted by the molding machine, and have eccentric portions with respect to the crankshaft. The weight member is installed on the machine base 30 of the molding machine and slides linearly along the second direction Y with respect to the machine base. One end of the drive rod is pivotally connected to the weight member, and the other end is movably connected to the eccentric part of the eccentric mechanism. A reciprocal sliding is performed linearly along a second direction opposite to the first direction X of the operation direction of the slide board, and the vibration is balanced. [Selection] Figure 10

Description

  The present invention is applied to a weight that reciprocates in opposite directions in synchronism, and passes the dead center of the stroke to the main slide board that reciprocates at a high speed toward the cavity when the core is interlocked. The present invention relates to a balance weight device in which the inertial action after the influence affects the impact exerted by the airframe.

  The production speed of the conventional screw forming machine in the molding technology field is about 250 pieces per minute, and the nut forming machine is about 300 pieces per minute, and the operation speed is very fast.

  Conventional Patent Document 1 describes an invention of a conventional screw forming machine (see FIG. 1). The screw forming machine 10 is manufactured as a semi-finished product by the core 12 being interlocked by the main slide board 11 and colliding toward the cavity 13.

Taiwan Utility Model No. 331193 Specification

  However, in the above-described conventional technology, when the main slide board 11 that performs the reciprocating motion slides to the dead center of the front and rear strokes, the aircraft vibrates due to the inertial action of the members interlocked with the main slide board 11 in the return stroke. As a result, the inside of the fuselage becomes unstable and wears, which reduces the production speed.

  Therefore, the present inventor considered that the above-described drawbacks can be improved, and as a result of intensive studies, the present inventor has arrived at a proposal of the present invention that effectively improves the above-described problems with a rational design.

  The present invention has been made in view of such a conventional problem, and the purpose thereof is engaged with an existing crankshaft that repeatedly performs linear motion by pushing the main slide board, And it is providing the balance weight apparatus of a molding machine which equips a weight contrary to the operation | movement direction of the said main slide board.

  In order to solve the above-described problems and achieve the above object, a balance weight device for a molding machine according to the present invention includes a pair of eccentric mechanisms, at least one weight member, and a pair of drive rods. The eccentric mechanisms are installed at both left and right ends of the crankshaft, and have eccentric portions with respect to the center of the crankshaft. The weight member is installed on the mounting base of the machine base. The drive rod has a first end and a second end opposite to the first end, the weight member is pivotally connected to the first end, and the second end is an eccentric portion of the corresponding eccentric mechanism. When the crankshaft rotates, the pair of drive rods are interlocked by an eccentric portion, and the weight member is driven to reverse the linear reciprocal sliding in the first direction of the main slide board. Reciprocate linearly along two directions.

  In a preferred embodiment, the main slide board and the weight member are respectively positioned on different sides of the crankshaft, and the reciprocating slide is performed when the main slide board performing the reciprocating slide slides to a dead point away from the crankshaft. When the weight member to be slid simultaneously slides to the dead point away from the crankshaft, and the main slide board to perform the reciprocating sliding slides to the dead point close to the crankshaft, the weight member to perform the reciprocating sliding simultaneously with the crankshaft Glide to the dead center that is close to.

  In a preferred embodiment, each eccentric mechanism includes a wheel, a coupling hole for shifting the center of the wheel is formed in the wheel, the coupling hole is provided to cover the crankshaft, and a wheel surface of the wheel is provided on the wheel surface. The eccentric part is formed.

  In a preferred embodiment, an elongated via hole is provided in which a plurality of pairs of positioning holes having different distances from the center of the wheel are provided, the coupling hole of the wheel is installed in the coupling block, and the coupling block is It is inserted into the long via hole and fixed to any one of the pair of positioning holes.

According to the technical features of the present invention, the balance weight device according to the present invention is engaged with and interlocked with two ends of an existing crankshaft that repeatedly performs linear motion by pushing the main slide board. It is applied to the upgrade of the aircraft. In contrast to the linear reciprocation of the main slide block at the intermediate part, the present invention is installed on the two outer sides with respect to the intermediate part and performs the opposite operation to the linear reciprocation of the main slide block. Therefore, the balance of the swing inside the aircraft is stably balanced, the wear of the aircraft is reduced, and the production efficiency is improved. The present invention is applied to and interlocked with a conventional crankshaft mechanism, has a simple structure, and is not easily damaged.
Further, according to an embodiment of the present invention, the eccentric part of the eccentric mechanism and the eccentric distance of the crankshaft are adjusted for the eccentric distance on the premise that the eccentric mechanism is not lowered directly from the crankshaft, so that maintenance and installation time can be obtained. And save cost. Furthermore, the travel distance of the weight member is changed, and the balance of gravity is adjusted during the actual operation of the aircraft or after the aircraft has been operated for a certain period of time. Therefore, the eccentric distance of the eccentric mechanism on the two sides of the present invention may be adjusted to a different degree of eccentricity to generate torque in a specific direction and maintain the balance of the aircraft), and small vibrations of the aircraft are not amplified To be suppressed.

It is an external appearance perspective view which shows the molding machine without the conventional balance weight apparatus. It is the expanded view which looked at the balance weight apparatus of the molding machine which concerns on preferable embodiment of this invention from the upper surface. It is the combination figure which looked at the balance weight apparatus of the molding machine which concerns on preferable embodiment of this invention from the upper surface. It is an expanded view which shows the eccentric mechanism, the drive rod, and weight member of the balance weight apparatus of the molding machine which concern on preferable embodiment of this invention. FIG. 5 is a tilt combination diagram illustrating the embodiment shown in FIG. 4. It is an expanded view which shows the eccentric mechanism which concerns on other embodiment of this invention. It is the combination figure which looked at one Embodiment shown in Drawing 6 from the upper surface. FIG. 8 is a top view of the embodiment coupling block shown in FIG. 7 locked in different positioning holes. It is a conceptual diagram of the operation | movement which looked at the balance weight apparatus of the molding machine which concerns on preferable embodiment of this invention from the upper surface, and a weight member respond | corresponds to the return dead center position in the reciprocating sliding stroke of a main slide board. FIG. 10 is a conceptual diagram of the operation of the balance weight device of the molding machine shown in FIG. 9 as viewed from above, and the weight member corresponds to the dead center position in the reciprocating sliding stroke of the main slide board. It is a conceptual diagram of the operation | movement which looked at the balance weight apparatus of the molding machine which concerns on preferable embodiment of this invention from the front, and a weight member respond | corresponds to the return dead center position in the reciprocation sliding stroke of a main slide board. In one Embodiment shown in FIG. 11, a weight member is a conceptual diagram of the operation | movement corresponding to the intermediate position of the going in the reciprocation sliding stroke of a main slide board. In one Embodiment shown in FIG. 11, the weight member is a conceptual diagram of the operation | movement corresponding to the dead center position in the reciprocation sliding stroke of a main slide board. In one Embodiment shown in FIG. 11, the weight member is a conceptual diagram of the operation | movement corresponding to the intermediate position of the return in the reciprocating sliding stroke of a main slide board. It is an external appearance perspective view which shows the weight member installed in either one of the both sides in which the balance weight apparatus of the molding machine which concerns on preferable embodiment of this invention exists in a machine base.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiment described below does not limit the contents of the present invention described in the claims of the utility model registration. Further, only the members related to the present invention are shown in these drawings, and the illustrated members do not limit the number, shape, size ratio and the like in the drawings to those shown in the drawings. Standards and sizes in actual implementation can be designed arbitrarily, and the arrangement of members may be more complicated.

(First embodiment)
FIG. 2 is a developed view of the balance weight device of the molding machine according to the preferred embodiment of the present invention as viewed from above, and FIG. 3 is a combination of the balance weight device of the molding machine according to the preferred embodiment of the present invention as viewed from above. 4 is a developed view showing an eccentric mechanism, a drive rod, and a weight member of a balance weight device of a molding machine according to a preferred embodiment of the present invention, and FIG. 5 is an inclination showing an embodiment shown in FIG. FIG.

In the machine base 30 of the molding machine 20 of the balance weight device 60 of the molding machine 20 according to the present embodiment, a transmission member of the crankshaft 40 and a moving member of the main slide board 50 are installed. A crank pin 41 for shifting the axis of the crank shaft 40 is formed, and the crank pin 41 is connected to the main slide board 50 by a crank link rod 42.
When the molding machine is driven, a stable torque provided by the crankshaft 40 makes full use of the crankshaft 40 and interlocks the main slide board 50 in the first direction X with respect to the machine base 30. A reciprocating slide is performed along a straight line. The structure of the balance weight device 60 includes a pair of eccentric mechanisms 61, a drive rod 63 corresponding to the eccentric mechanism 61, and at least one weight member 62.

The eccentric mechanism 61 has an eccentric portion 611 that is installed at both left and right ends of the crankshaft 40 with respect to the intermediate stage (that is, the position of the crankpin 41) and shifts at the center position of the crankshaft 40. The weight member 62 is installed on the mounting base 31 of the machine base 30 (preferred position is installed on the machine base rear surface 32 or the machine base side surface 33).
Each drive rod 63 has a first end 631 and a second end 632 in a direction opposite to the first end 631, the weight member 62 is pivotally connected to the first end 631, and the weight member 62 is The second end 632 is movably connected to an eccentric portion 611 of the corresponding eccentric mechanism 61, and when the crankshaft 40 rotates, the pair of eccentric mechanisms 61 causes the pair of eccentric ends 61 to freely rotate with respect to the first end. The drive rod 63 is interlocked and the weight member 62 is driven to reciprocate linearly along the second direction Y which is opposite to the first direction X.

In the present embodiment, each eccentric mechanism 61 includes a wheel 612. The wheel 612 is provided with a coupling hole 6121 for shifting the center of the wheel 612, and the coupling hole 6121 is provided to cover the crankshaft 40. The eccentric portion 611 is formed on the wheel surface 6122 of the wheel 612 (see FIGS. 4 and 5).
The second end 632 of each drive rod 63 includes a main side 6321 and a main side cover 6322 that is connected separately from the main side 6321 (eg, connected by an engagement member), and The wheel surface 6122 of the wheel 612 is surrounded and connected by the main side surface 6321 and the main side surface cover 6322 (of course, the friction coefficient of the connection surface decreases, and the main side surface 6321 of each drive rod 63 decreases. An upper drive rod liner 6323 and a lower drive rod liner 6324 are disposed between the main side cover 6322 and the wheel surface 6122, and an oil hole is provided in the wheel surface 6122 for lubrication. May be)
Accordingly, the second end 632 of the drive rod 63 slides on the wheel surface 6122 (eccentric portion 611), and the drive rod 63 is interlocked by the wheel 612 so as to correspond to the crankshaft 40. Peristally move back and forth.

In addition, FIGS. 6, 7 and 8 illustrate other embodiments of the wheel 612 ′. In the present embodiment, a long via hole 6123 is formed in the wheel 612 ′, and a plurality of pairs of positioning holes 61232 having different distances from the center of the wheel 612 ′ are provided in the long via hole 6123. The coupling hole 61241 of the wheel 612 ′ is installed in the coupling block 6124, and the coupling block 6124 is fitted into the long via hole 6123 (the coupling block 6124 conforms to the shape of the long via hole 6123). The width is the same, but the length is short, and the coupling position is adjusted along the length direction of the long via hole 6123), and fixed to any one of the pair of positioning holes 61232.
There are a number of variations in the specific structural design described above, where the coupling block 6124 is slid and fixed within the elongated via hole 6123 as an example. Recessed platforms 61231 in which the positioning holes 61232 are formed are respectively formed on the long sides on the two sides of the long via holes 6123, and the coupling blocks 6124 correspond to the two sides corresponding to the recessed platforms 61231. A pair of extending blocks 61242 is installed in the extending block 61242 and a coupling hole 61243 is installed in the extending block 61242.
When the coupling block 6124 is fixed to different pairs of positioning holes 61232 in the elongated via hole 6123, the distance between the center position of the coupling hole 61241 and the center position of the wheel 612 ′ is different (the distance in FIG. 7). S1 and the distance S2 in FIG. 8 are not the same), and the eccentric distance is adjusted.

9 and 10 illustrate the one corresponding to the tuning position of FIGS. 11 and 13. In the present embodiment, the main slide board 50 and the weight member 62 are respectively positioned on different sides of the crankshaft 40 (that is, the main slide board 50 is positioned on the front side of the crankshaft 40 and the weight member 62 is cranked). When the main slide board 50 that performs the reciprocating sliding is slid to the dead point close to the “crankshaft 40”, the weight member 62 that performs the reciprocating sliding is simultaneously reciprocated of the main body. It slides to the dead point close to “the crankshaft 40” during the stroke (see FIGS. 9 and 11).
When the main slide board 50 that performs the reciprocating sliding slides to the dead point that separates from the “crankshaft 40”, the weight member that performs the reciprocating sliding simultaneously reaches the dead point that separates from the “crankshaft 40” during the reciprocating stroke of the main body. It slides (see FIG. 10 and FIG. 13).

11, 12, 13, and 14 are weight points according to the present invention, the dead center position of the return stroke of the main slide board, the intermediate position of the outbound path (outward path), the dead center of the outbound path Each corresponding to the middle of the position and return journey is illustrated.
The situation in which the main slide board 50 and the weight member 62 are operated in the opposite direction is clearly shown. The weight member 62 is driven by a pair of drive rods 63 outside the main slide board 50, and thereby the main slide is sufficiently effectively performed. Balance the vibration of the board 50.

  Next, FIG. 15 illustrates that the balance weight device of the molding machine according to the present invention is installed on one side of the weight members 62 and 62 'on the two sides of the machine base (symmetrically installed on the other side). ) In the present embodiment, the mounting table 31 ′ is installed on each of the two outer sides of the machine base 30, the weight members 31 ′ are paired, are pivotally connected to the pair of drive rods 63, and each weight The member 31 ′ is driven by the connected drive rod 63 to reciprocate linearly along the second direction Y.

  Incidentally, the weight member (62, 62 ') of the present invention is formed by a single block body or a combination of a plurality of weights.

  The above-described embodiments are merely for explaining the technical idea and features of the present invention, and are intended to allow those skilled in the art to understand the contents of the present invention and to carry out the present invention. It is not intended to limit the scope of the claims. Accordingly, improvements or modifications having various similar effects without departing from the spirit of the present invention shall be included in the following claims.

DESCRIPTION OF SYMBOLS 10 Conventional screw forming machine 11 Main slide board 12 Core 13 Cavity 20 Molding machine 30 Machine base 31, 31 'mounting base 32 Machine base rear surface 33 Machine base side surface 40 Crankshaft 41 Crank pin 42 Crank link rod 50 Main slide board 60 Balance Weight device 61 Eccentric mechanism 611 Eccentric part 612, 612 'Wheel 6121 Connection hole 6122 Wheel surface 6123 Long via hole 61231 Recessed platform 61232 Positioning hole 6124 Connection block 61241 Connection hole 61242 Extension block 61243 Connection hole 62, 62' Weight member 63 Rod 631 First end 632 Second end 6321 Main side 6322 Main side cover 6323 Upper drive rod liner 6324 Lower drive rod Liner S1, S2 Distance X First direction Y Second direction

Claims (11)

A crankshaft and a main slide board are installed on a machine base of the molding machine, and an eccentric crank pin is provided at an intermediate stage of the crank shaft, and the crank pin is connected to the main slide board by a crank link rod, A balance weight device of a molding machine, in which a stable torque is provided by a crankshaft, and the main slide board is driven by the crankshaft to linearly reciprocate along a first direction with respect to the machine base,
A pair of eccentric mechanisms that are respectively installed at both left and right ends of the crankshaft with respect to the intermediate stage and have eccentric portions that shift at the center position of the crankshaft;
At least one weight member installed on the mounting base of the machine base;
The first end has a second end opposite to the first end, the weight member is pivotally connected to the first end, and the second end is movable to the eccentric portion of the corresponding eccentric mechanism. When the crankshaft rotates, the weight member is driven to reciprocate linearly along the second direction, and the first direction and the second direction And a pair of drive rods in opposite directions,
Balance weight device for molding machines.   The main slide board and the weight member are respectively positioned on different sides of the crankshaft, and when the main slide board that performs the reciprocating slide slides to a dead point that is separated from the crankshaft, the weight member that performs the reciprocating slide simultaneously 2. The balance weight device for a molding machine according to claim 1, wherein the balance weight device slides to a dead point away from the crankshaft.   The weight member performing the reciprocal sliding simultaneously slides to the dead point close to the crankshaft when the main slide board performing the reciprocal sliding slides to the dead point close to the crankshaft. Item 3. A balance weight device for a molding machine according to Item 1 or 2.   Each eccentric mechanism includes a wheel, and a coupling hole for shifting the center of the wheel is formed in the wheel, the coupling hole is covered with the crankshaft, and the eccentric portion is formed on a wheel surface of the wheel. The balance weight device of the molding machine according to claim 1, wherein   The second end of each drive rod includes a main side surface and a main side cover separated and connected to the main side surface, and the wheel side of the wheel is provided by the main side surface and the main side cover. The balance weight device for a molding machine according to claim 4, wherein the balance weight device is enclosed and connected.   The upper drive rod liner and the lower drive rod liner are covered between the main side surface, the main side surface cover, and the wheel surface of each drive rod, respectively. Balance weight device for molding machine.   The balance weight device of the molding machine according to claim 1, wherein the mounting table is located on a rear side of the machine base opposite to a forward direction of the main slide board.   The mounting table is installed on each of the two outer sides of the machine base, the weight members are paired, are pivotally connected to the pair of driving rods, and each weight member is driven by the connecting driving rod. The balance weight device for a molding machine according to claim 1, wherein the balance machine performs linear reciprocation along the second direction.   The balance weight device of the molding machine according to claim 1, wherein the weight member is a single block body.   The balance weight device for a molding machine according to claim 1 or 7, wherein the weight member is formed by combining a plurality of weights.   The wheel is provided with a long via hole in which a plurality of pairs of positioning holes having different distances from the center of the wheel are provided, and the coupling hole of the wheel is installed in a coupling block. 5. The balance weight device for a molding machine according to claim 4, wherein the balance weight device is inserted into the elongated via hole and is fixed to any one of the pair of positioning holes.

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