JP6798429B2 - Connecting mechanism for driving the mold - Google Patents

Description

The present invention relates to, for example, a connecting mechanism for driving a mold, which connects a unit inside the mold and a drive source arranged outside the mold to reciprocate the unit so as to be detachably connected outside the mold.

Patent Document 1, for example, describes a coupling mechanism for driving a mold that connects a unit inside a mold and a drive source arranged outside the mold to reciprocate the unit so as to be detachably connected outside the mold. Has been done. In Patent Document 1, as shown in FIGS. 10 (a) and 10 (b), the concave spherical sliding contact surface 101a and the convex spherical sliding contact surface 102a are rubbed together in the coupling 103. Two spacers 101, 102 arranged between one rod end 104 and the other rod end 105, and the two spacers 101, which are formed so as to project from the inner peripheral surface of the coupling 103. Described is a rod connecting mechanism 100 including a regulating portion 106 that regulates the spacer 102 of any one of the 102 so as not to move in the radial direction thereof. According to the rod connecting mechanism 100, even if a force that causes misalignment acts between the two rods, a pressing force always acts in the axial direction of each rod, so that the rod end portion 104 , 105 can be effectively prevented from breaking.

However, the rod connecting mechanism 100 reciprocates the cutting tool unit in the die mounted on the press machine in the left-right direction with high accuracy and high speed in synchronization with the vertical movement and the material feeding movement of the press machine. When applying to the connecting mechanism for driving the mold that connects the drive source and the cutting tool unit of the mold, when the cutting tool unit in the mold is regularly repaired, the coupling 103 is disassembled and each time. It is necessary to separate the spacers 101 and 102, and there is a problem that it takes time and effort to disassemble and assemble the spacers 101 and 102.

Therefore, as shown in FIG. 11, the applicant has a T-shaped block 204 formed on the mold rod end 203 extending from the cutting tool unit 202 in the mold 201, and the T-shaped block. We have invented a connecting mechanism 200 for driving a mold, in which the flange portions 204a and 204b protruding in the vertical direction of the 204 are sandwiched by a pair of upper and lower roller bodies 205a and 205b arranged in the horizontal direction, respectively. The roller bodies 205a and 205b are attached to a U-shaped frame body 208 formed at the drive rod end portion 207 of the drive source 206. According to the connecting mechanism 200, when the cutting tool unit 202 in the mold is regularly repaired, the connecting mechanism 200 is engaged only by moving the mold 201 in the direction perpendicular to the paper surface of FIG. You can easily join and leave.

Jikkenhei 6-15856

However, in the mold driving connecting mechanism 200, as shown in FIG. 12, the roller bodies 205a and 205b have a structure in which they come into contact with the collar portions 204a and 204b at one point on the outer circumference, so that the collar portions 204a and 204b There was a problem that the contact surface was easily worn and deformed. Therefore, even if the gap between the roller bodies 205a and 205b and the flange portions 204a and 204b is temporarily adjusted to zero, the contact surface becomes loose due to the change over time due to the load during driving, and the metal In some cases, it may be difficult to reciprocate the cutting tool unit 202 in the die 201 in the left-right direction with high accuracy and high speed in synchronization with the vertical movement of the press machine and the material feeding movement.

The present invention has been made to solve the above-mentioned problems, and it is possible to easily engage and disengage the mold drive, and the contact surface is less likely to rattle due to a change over time due to a load during driving. It is an object of the present invention to provide a connecting mechanism for use.

In order to achieve the above object, the connecting mechanism for driving the mold according to the present invention has the following configuration.
(1) A connecting mechanism for driving a mold, which connects a unit inside the mold and a drive source arranged outside the mold to reciprocate the unit so as to be detachably connected outside the mold.
The connecting mechanism includes a unit-side connecting portion connected to the unit and a driving-side connecting portion connected to the drive source.
One of the unit-side connecting portion and the driving-side connecting portion can be engaged with or disengaged from the other from the direction orthogonal to the reciprocating movement direction, and the engaged one can be engaged with the other from the reciprocating moving direction. It is characterized in that it is formed so that it can be pinched.

In the present invention, the connecting mechanism includes a unit-side connecting portion connected to the unit and a driving-side connecting portion connected to the drive source, and either one of the unit-side connecting portion and the driving-side connecting portion is provided. Is formed so that either one can be engaged or disengaged from the direction orthogonal to the reciprocating movement direction, and the other can be held between the engaged ones from the reciprocating movement direction, so that the mold or the drive source can be held in the reciprocating movement direction of the unit. The unit-side connecting portion and the driving-side connecting portion can be easily engaged and disengaged simply by moving the unit in a direction orthogonal to the above. Further, even if the contact surface between the drive side connecting portion and the unit side connecting portion is worn or deformed, one of the engaged portions is sandwiched from the reciprocating moving direction, so that the driving side connecting portion and the unit side connecting portion are held together. The gap on the contact surface is maintained at zero, and the contact surface does not play due to changes over time due to the load during driving.

Therefore, according to the present invention, it is possible to provide a connecting mechanism for driving a mold, which can be easily engaged and disengaged and is less likely to cause play due to a change with time due to a load during driving.

(2) In the connecting mechanism for driving the mold described in (1),
The other feature is provided with a fixed claw portion and a movable claw portion that sandwich the one collar portion from both sides in the reciprocating movement direction, and a one-way pressing mechanism that presses the movable claw portion against the collar portion. To do.

In the present invention, the other is provided with a fixed claw portion and a movable claw portion that sandwich one of the collar portions from both sides in the reciprocating movement direction, and a one-way pressing mechanism that presses the movable claw portion against the collar portion. When the source is driven to reciprocate the unit in the mold, the movable claw portion can always be pressed against the collar portion by the pressing force of the one-way pressing mechanism, and the backlash of the connecting mechanism can be prevented. The one-way pressing mechanism may be any mechanism that moves the movable claw portion in the direction of contact with the flange portion, except when the connecting mechanism is released, and examples thereof include a cam mechanism and a spring mechanism.

(3) In the connecting mechanism for driving the mold described in (2),
The one-way pressing mechanism is characterized by including a wedge-shaped cam driver portion that presses the movable claw portion against the collar portion and a backup portion that guides the downward movement of the cam driver portion.

In the present invention, the one-way pressing mechanism includes a wedge-shaped cam driver portion that presses the movable claw portion against the collar portion and a backup portion that guides the downward movement of the cam driver portion. The movable claw portion can be pressed against the flange portion by its own weight and the frictional force between the cam driver portion and the backup portion. Therefore, the one-way pressing mechanism can be simplified and reduced in weight.

(4) In the connecting mechanism for driving the mold described in (3),
A spring member for urging downward is attached to the cam driver portion.

In the present invention, since the cam driver portion is equipped with a spring member that biases downward, the pressing force for pressing the movable claw portion against the collar portion can be adjusted by the spring member. Therefore, even if the unit is reciprocated at high speed, it is possible to effectively prevent backlash due to inertia between the unit-side connecting portion connected to the unit and the driving-side connecting portion connected to the drive source. be able to.

(5) In the connecting mechanism for driving the mold according to any one of (1) to (4),
One of the above is formed in a horizontal T-shaped block having an upper collar portion and a lower collar portion formed so as to project in the vertical direction.
The other has an upper fixed claw portion and an upper movable claw portion that sandwich the upper collar portion, and a lower fixed claw portion and a lower movable claw portion that sandwich the lower collar portion, and the upper fixed claw portion and the said The lower fixed claw portion, the upper movable claw portion, and the lower movable claw portion are formed into a horizontally U-shaped fixed claw portion and a horizontally U-shaped movable claw portion, respectively.

In the present invention, one is formed into a horizontal T-shaped block having an upper flange portion and a lower flange portion formed so as to project in the vertical direction, and the other is an upper fixed claw portion and an upper movable portion that sandwich the upper collar portion. It has a claw portion, a lower fixed claw portion and a lower movable claw portion that sandwich the lower collar portion, and the upper fixed claw portion and the lower fixed claw portion, and the upper movable claw portion and the lower movable claw portion are lateral U, respectively. Since it is formed in a character-shaped fixed claw part and a horizontal U-shaped movable claw part, the upper collar of the horizontal T-shaped block formed in either the unit side connecting part or the driving side connecting part. The portion and the lower collar portion are easily engaged or disengaged from the direction orthogonal to the reciprocating movement direction of the unit by the horizontal U-shaped fixed claw portion and the horizontal U-shaped movable claw portion formed on either one of them. The upper and lower collars of the engaged horizontal T-shaped block are vertically balanced from the reciprocating movement direction by the horizontal U-shaped fixed claws and the horizontal U-shaped movable claws formed on the other side. Can be held well. Therefore, the contact surface between the drive-side connecting portion and the unit-side connecting portion is not easily worn or deformed, and even if the contact surface is worn or deformed, one of the engaged parts is sandwiched by the other in a well-balanced vertical direction from the reciprocating movement direction. It is possible to further reduce the backlash of the contact surface due to the change over time due to the load during driving.

According to the present invention, it is possible to provide a connecting mechanism for driving a mold, which can be easily engaged and disengaged and is less likely to cause backlash on the contact surface due to a change over time due to a load during driving.

It is an overall schematic side view in the application example of the connecting mechanism for driving a mold which concerns on this embodiment. It is an enlarged view of the part A of the connection mechanism (when engaged) for driving a mold shown in FIG. It is a B arrow view shown in FIG. It is an enlarged view of the part A of the connection mechanism (at the time of disconnection) for driving a mold shown in FIG. It is a C arrow view shown in FIG. It is a schematic explanatory drawing of the one-way pressing mechanism (when the mold is pulled) in the connecting mechanism for driving a mold shown in FIG. It is a schematic explanatory drawing of the one-way pressing mechanism (during die extrusion) in the connecting mechanism for driving a die shown in FIG. It is an enlarged view of the part A of the connection mechanism (deformation example) for driving a mold shown in FIG. It is a D arrow view shown in FIG. It is sectional drawing of the rod connecting mechanism described in Patent Document 1. (A) shows a diagram in a state where the shaft cores are aligned, and (b) is a diagram in a state where the shaft cores are displaced. It is a schematic side view of the connecting mechanism for driving a mold invented by this applicant. It is a top view of the connecting mechanism (when engaged) for driving a mold shown in FIG.

Next, the connecting mechanism for driving the mold according to the embodiment of the present invention will be described in detail with reference to the drawings. First, an application example of the connecting mechanism for driving the mold according to the present embodiment will be described, and the detailed structure of the connecting mechanism will be described. Further, the mechanism of the one-way pressing mechanism used for the connecting mechanism for driving the mold will be described. Further, a modified example of the connecting mechanism for driving the mold according to the present embodiment will be described.

<Application example of the connecting mechanism for driving this mold>
First, the overall structure of the application example of the connecting mechanism for driving the mold according to the present embodiment will be described with reference to FIG. FIG. 1 shows an overall schematic side view of an application example of the connecting mechanism for driving a mold according to the present embodiment.

As shown in FIG. 1, the connecting mechanism for driving the mold engages and disengages the unit 11 inside the mold 1 and the drive source 2 arranged outside the mold and reciprocating the unit 11 outside the mold. It is a connecting mechanism 10 for driving a mold that is connected as possible. The connecting mechanism 10 includes a unit-side connecting portion 12 connected to the unit 11 and a driving-side connecting portion 21 connected to the drive source 2, and either of the unit-side connecting portion 12 and the driving-side connecting portion 21 One is characterized in that it can be engaged or disengaged from any of the other in a direction orthogonal to the reciprocating movement direction, and the other is formed so that the engaged one can be sandwiched from the reciprocating movement direction.

Here, the unit-side connecting portion 12 (one side) can be engaged in or disengaged from the driving-side connecting portion 21 (one side) in a direction orthogonal to the reciprocating movement direction (X direction) (Y direction orthogonal to the paper in the figure), and The drive-side connecting portion 21 (the other) is formed so that the engaged unit-side connecting portion 12 (one) can be sandwiched from the reciprocating movement direction (X direction). Contrary to the above example, the drive side connecting portion 21 (one side) engages with the unit side connecting portion 12 (the other side) from a direction orthogonal to the reciprocating movement direction (X direction) (Y direction orthogonal to the paper surface in the figure). Alternatively, the unit-side connecting portion 12 (the other) may be formed so that the engaged drive-side connecting portion 21 (one) can be sandwiched from the reciprocating movement direction (X direction).

Further, the mold 1 is provided with an upper mold 13 and a lower mold 14, and is provided with, for example, a unit (cutting tool) 11 for lath-cutting a flat steel plate between the two. The die 1 is mounted on a press machine (not shown). When the press machine operates to move the upper die 13 in the pressing direction (Z direction), the unit (cutting tool) 11 lath cuts the steel sheet to be fed in the Y direction at a predetermined pitch. Every time the unit (cutting tool) 11 lath cuts the steel plate, the drive shaft portion 22 of the drive source 2 reciprocates in the axial direction to reciprocate the unit (cutting tool) 11 in the X direction. The unit 11 refers to a blade set of an upper blade and a lower blade, but is not limited to the blade set as long as it is a member to be driven in the mold 1, and may be a single member.

Further, the drive source 2 includes, for example, a drive shaft portion 22 formed so as to be linearly movable in the X direction, and a drive side connecting portion 21 is formed at the tip end portion of the drive shaft portion 22. The main body of the drive source 2 is fixed to the floor surface. When the unit (cutting tool) 11 in the mold 1 is regularly repaired, by moving the mold 1 in the Y direction, the unit side connecting portion 12 (one side) together with the unit (cutting tool) 11 in the mold 1 is used. Is moved in the Y direction to engage and disengage the connecting mechanism 10.

<Detailed structure of connecting mechanism>
Next, the detailed structure of the connecting mechanism for driving the mold will be described with reference to FIGS. 2 to 5. FIG. 2 shows an enlarged view of part A of the connecting mechanism (when engaged) for driving the mold shown in FIG. FIG. 3 shows a view taken along the arrow B shown in FIG. FIG. 4 shows an enlarged view of part A of the connecting mechanism (at the time of disconnection) for driving the mold shown in FIG. FIG. 5 shows a view taken along the arrow C shown in FIG.

As shown in FIGS. 2 and 3, the drive-side connecting portion 21 (the other) has a fixed claw portion 211 that sandwiches the flange portion 121 of the unit-side connecting portion 12 (one) from both sides in the reciprocating movement direction (X direction). The movable claw portion 212 and the one-way pressing mechanism 3 for pressing the movable claw portion 212 against the flange portion 121 are provided. When the drive source 2 is driven to reciprocate the unit (cutting tool) 11 in the mold 1, the pressing force (force Q in the X direction) of the one-way pressing mechanism 3 always moves the movable claw portion 212 to the flange portion 121. It works to make it abut.

Further, the one-way pressing mechanism 3 includes a wedge-shaped cam driver portion 213 that presses the inclined back surface 212H of the movable claw portion 212, and a backup portion 214 that guides the downward movement of the cam driver portion 213. The downward force P due to the weight of the cam driver portion 213 acts as a force Q that presses the movable claw portion 212 against the flange portion 121. The fixed claw portion 211 and the backup portion 214 are integrally connected by the main body portion 215. Therefore, the downward force P due to the weight of the cam driver portion 213 is a force R in which the fixed claw portion 211 and the movable claw portion 212 sandwich the flange portion 121 having a rectangular cross section from both sides in the reciprocating movement direction (X direction). Acts as R.

Further, the cam driver portion 213 is equipped with a spring member 217 that biases downward. The downward force P due to the weight of the cam driver portion 213 can be adjusted by the urging force of the spring member 217. For example, when the drive source 2 reciprocates the unit (cutting tool) 11 at high speed, the urging force of the spring member 217 is increased, and the unit side connecting portion 12 and the driving source 2 connected to the unit (cutting tool) 11 are increased. It is preferable to prevent backlash due to inertia from occurring between the drive side connecting portion 21 connected to the drive side connecting portion 21 and the driving side connecting portion 21.

Further, as shown in FIGS. 4 and 5, a return spring 216 that pushes the movable claw portion 212 back to the opposite side to the fixed claw portion 211 is mounted between the fixed claw portion 211 and the movable claw portion 212. When engaging / disengaging the connecting mechanism 10, the cam driver portion 213 is pulled upward (in the S direction) to release the pressing force (force Q in the X direction) of the one-way pressing mechanism 3 and return it. The movable claw portion 212 is moved in the T direction by the spring 216 to form a predetermined gap d between the movable claw portion 212 and the flange portion 121. The connecting mechanism 10 can be easily engaged and disengaged by simply moving the unit-side connecting portion 12 (one side) in the Y direction with the gap d formed.

Further, as shown in FIGS. 2 to 5, the unit-side connecting portion 12 (one side) is a horizontal T-shaped block having an upper flange portion 121a and a lower flange portion 121b formed so as to project in the vertical direction (Z direction). It is formed on the TB. Further, the drive side connecting portion 21 (the other) includes an upper fixed claw portion 211a and an upper movable claw portion 212a that sandwich the upper flange portion 121a, and a lower fixed claw portion 211b and a lower movable claw portion 212b that sandwich the lower collar portion 121b. The upper fixed claw portion 211a and the lower fixed claw portion 211b, and the upper movable claw portion 212a and the lower movable claw portion 212b have a horizontal U-shaped fixed claw portion 211 and a horizontal U-shaped movable claw, respectively. It is formed in the portion 212.

Further, the upper and lower flanges 121a and 121b of the horizontal T-shaped block TB are combined with the horizontal U-shaped fixed claws 211 (upper fixed claws 211a and lower fixed claws 211b) and the horizontal U-shaped movable claws. With the portion 212 (upper movable claw portion 212a and lower movable claw portion 212b), the unit (cutting tool) 11 can be easily engaged or disengaged from the direction (Y direction) orthogonal to the reciprocating movement direction (X direction), and laterally. The U-shaped fixed claw portion 211 and the horizontal U-shaped movable claw portion 212 balance the upper and lower collar portions 121a and lower collar portion 121b of the engaged horizontal T-shaped block TB vertically from the reciprocating movement direction (X direction). Can be held well. Therefore, the contact surfaces of the two are not easily worn or deformed, and even if they are worn or deformed, the upper flange portion 121a and the lower collar portion 121b of the engaged horizontal T-shaped block TB are fixed in a horizontal U shape. By sandwiching the 211 and the horizontally U-shaped movable claw portion 212 in a well-balanced vertical direction from the reciprocating movement direction (X direction), play of the contact surface is prevented. The upper collar portion 121a and the lower collar portion 121b are formed in parallel with each other with the same thickness.

<Mechanism of one-way pressing mechanism>
Next, the operation mechanism of the one-way pressing mechanism used for the connecting mechanism for driving the mold will be described with reference to FIGS. 6 and 7. FIG. 6 shows a schematic explanatory view of a one-way pressing mechanism (when the mold is pulled) in the connecting mechanism for driving the mold shown in FIG. FIG. 7 shows a schematic explanatory view of a one-way pressing mechanism (when the mold is extruded) in the connecting mechanism for driving the mold shown in FIG.

As described above, the connecting mechanism 10 for driving the mold is driven by the drive source 2 to reciprocate the unit (cutting tool) 11 in the mold 1 except when the connecting mechanism 10 is engaged and disengaged. At the time of making it, the one-way pressing mechanism 3 needs to act so as to always bring the movable claw portion 212 into contact with the flange portion 121. The operation mechanism is that when the drive source 2 pulls the unit (cutting tool) 11 in the mold 1 toward the drive source side, and when the drive source 2 pushes the unit (cutting tool) 11 in the mold 1 to the opposite side to the drive source. The explanation will be given separately for the case of issuing.

As shown in FIG. 6, when the drive source 2 pulls the unit (cutting tool) 11 in the mold 1 toward the drive source side, the unit side connecting portion 12 is connected to the fixed claw portion 211 of the driving side connecting portion 21. The driving reaction force F1 acts from the flange portion 121. This drive reaction force F1 does not act on the movable claw portion 212 of the drive side connecting portion 21. If there is a gap d1 between the flange portion 121 of the unit side connecting portion 12 and the movable claw portion 212 of the driving side connecting portion 21, the wedge-shaped cam driver portion 213 pushes the inclined back surface of the movable claw portion 212. The movable claw portion 212 is moved toward the mold side (L direction) by the pressing force F2, and the gap d1 is made zero. Therefore, the one-way pressing mechanism 3 acts so as to always bring the movable claw portion 212 into contact with the flange portion 121.

Further, as shown in FIG. 7, when the drive source 2 pushes the unit (cutting tool) 11 in the mold 1 to the opposite side to the drive source 2, the movable claw portion 212 of the drive side connecting portion 21 is subjected to. The drive reaction force F3 acts from the flange portion 121 of the unit side connecting portion 12. Therefore, the drive reaction force F3 has a vertical upward component force F4 (= F3 × tan θ) with respect to the cam driver portion 213 that abuts on the inclined back surface having a predetermined inclination angle θ of the movable claw portion 212 of the drive side connecting portion 21. Acts as. However, at the same time, with respect to the cam driver portion 213, a vertical downward component force F5 (=) based on the frictional resistance (friction coefficient: μ) of the drive reaction force F3 from the inclined back surface of the movable claw portion 212 and the backup surface of the backup portion 214. F3 × μ × (1 + cos ² θ)) acts. Further, at least a pressing force F2 due to its own weight also acts on the cam driver unit 213.

In this case, the predetermined tilt angle θ on the tilted back surface of the movable claw portion 212 is set as follows so that the vertical upper component force F4 is smaller than the total value of the vertical lower component force F5 and the pressing force F2. , The one-way pressing mechanism 3 in which backlash does not occur can be configured. Specifically, the friction coefficient μ between the cam driver portion 213 and the inclined back surface of the movable claw portion 212 and the backup surface of the backup portion 214 is about 0.1 under the condition that the steels are lubricated, and F4 is F3. A trial calculation was made in consideration of the fact that it was significantly smaller, and it was found that the predetermined inclination angle θ should be approximately 11 ° or less.

<Modification example of connecting mechanism for driving mold>
Next, a modified example of the connecting mechanism for driving the mold according to the present embodiment will be described with reference to FIGS. 8 and 9. FIG. 8 shows an enlarged view of part A of the connecting mechanism (modification example) for driving the mold shown in FIG. FIG. 9 shows a view taken along the arrow D shown in FIG.

As shown in FIGS. 8 and 9, in the modified example 10B of the connecting mechanism for driving the mold, the unit side connecting portion 12 (one side) is in the reciprocating movement direction (X direction) with respect to the driving side connecting portion 21B (the other). It can be engaged or disengaged from an orthogonal direction (Y direction orthogonal to the paper in the figure), and the drive side connecting portion 21B (the other) moves the engaged unit side connecting portion 12 (one) from the reciprocating movement direction (X direction). It is formed so that it can be pinched.

Here, the drive-side connecting portion 21B (the other) is provided with a fixed claw portion 211B and a movable claw portion 212B that sandwich the flange portion 121 of the unit-side connecting portion 12 (one) from both sides in the reciprocating movement direction (X direction). It is provided with a one-way pressing mechanism 3B that presses the movable claw portion 212B against the flange portion 121. This one-way pressing mechanism 3B differs from the above-mentioned one-way pressing mechanism 3 in the following points. The configuration of the unit-side connecting portion 12 is common.

That is, in the one-way pressing mechanism 3B of the modified example, the movable claw portion 212B and the cam driver portion 213B are formed so as to be integrated as the movable body 210B. Further, the backup unit 214B includes an inclined guide surface 214BH that moves the cam driver unit 213B integrated as the movable body 210B in the QQ direction, and the flange portion 121 of the unit side connecting portion 12 (one side) is combined with the movable claw portion 212B. It is formed so as to be sandwiched from both sides by the fixed claw portion 211B.

Further, a spring member 217B that biases downward is attached to the cam driver portion 213B integrated as the movable body 210B. The downward force P due to the weight of the movable body 210B can be adjusted by the urging force of the spring member 217B. Further, the fixed claw portion 211B and the backup portion 214B are connected by the main body portion 215B, and a return spring that returns the movable body 210B to the opposite side to the fixed claw portion 211B between the fixed claw portion 211B and the movable claw portion 212B. 216B is attached. The return spring 216B is preferably a plunger type that pushes the end surface of the movable claw portion 212B.

<Effect>
As described in detail above, according to the connecting mechanisms 10 and 10B for driving the mold according to the present embodiment, the connecting mechanism includes the unit-side connecting portion 12 connected to the unit 11 and the drive source 2. The drive side connecting portions 21 and 21B are provided, and one of the unit side connecting portion 12 and the driving side connecting portions 21 and 21B is orthogonal to the reciprocating movement direction (X direction). Since it is formed so that it can be engaged or disengaged from (Y direction) and the other can be sandwiched from the reciprocating movement direction, the mold 1 or the drive source 2 is moved in a direction orthogonal to the reciprocating movement direction of the unit 11. The unit-side connecting portion 12 and the driving-side connecting portions 21 and 21B can be easily engaged and disengaged simply by causing the unit to be engaged with each other. Further, even if the contact surface between the drive-side connecting portions 21 and 21B and the unit-side connecting portion 12 is worn or deformed, one of the engaged portions is sandwiched by the other from the reciprocating movement direction, so that the driving-side connecting portions 21 and 21B The gap between the and the unit-side connecting portion 12 on the contact surface is maintained at zero, and the contact surface does not play due to changes over time due to a load during driving.

Therefore, according to the present embodiment, it is possible to provide the connecting mechanisms 10 and 10B for driving the mold, which can be easily engaged and disengaged and are less likely to play due to changes with time due to a load during driving. ..

Further, according to the present embodiment, the other (drive side connecting portions 21, 21B) has a fixed claw portion that sandwiches the flange portion 121 of one (unit side connecting portion 12) from both sides in the reciprocating movement direction (X direction). Since the two-way pressing mechanisms 3 and 3B for pressing the movable claws 212 and 212B and the movable claws 212 and 212B to the flange 121 are provided, the drive source 2 is driven to drive the unit in the mold 1. When the 11 is reciprocated, the movable claw portions 212 and 212B can always be pressed against the flange portion 121 by the pressing force of the one-way pressing mechanisms 3 and 3B, and the backlash of the connecting mechanisms 10 and 10B can be prevented. The one-way pressing mechanisms 3 and 3B may be any mechanism that moves the movable claw portions 212 and 212B in the direction of contact with the flange portion 121, except when the connecting mechanisms 10 and 10B are released. For example, the cam mechanism. The spring mechanism, etc. is applicable.

Further, according to the present embodiment, the one-way pressing mechanisms 3 and 3B have a wedge-shaped cam driver portion 213 and 213B for pressing the movable claw portions 212 and 212B against the collar portion 121, and the cam driver portions 213 and 213B downward. Since the backup units 214 and 214B for guiding the movement of the cam driver units are provided, the movable claw portions 212 and 212B can be moved by the weight of the cam driver units 213 and 213B and the frictional force between the cam driver units 213 and 213B and the backup units 214 and 214B. It can be pressed against the collar 121. Therefore, the one-way pressing mechanisms 3 and 3B can be simplified and reduced in weight.

Further, according to the present embodiment, since the cam driver portions 213 and 213B are provided with the downwardly urging spring members 217 and 217B, the pressing force for pressing the movable claw portions 212 and 212B against the collar portion 121 is applied to the spring. It can be adjusted by members 217 and 217B. Therefore, even if the unit 11 is reciprocated at high speed, backlash due to inertia occurs between the unit side connecting portion 12 connected to the unit 11 and the driving side connecting portions 21 and 21B connected to the drive source 2. Can be effectively prevented.

Further, according to the present embodiment, one (unit side connecting portion 12) is formed in a horizontal T-shaped block TB having an upper collar portion 121a and a lower collar portion 121b formed so as to project in the vertical direction, and the other (unit side connecting portion 12) is formed. The drive side connecting portions 21, 21B) include upper fixed claw portions 211a, 211Ba and upper movable claw portions 212a, 212Ba that sandwich the upper collar portion 121a, and lower fixed claw portions 211b, 211Bb and lower that sandwich the lower collar portion 121b. It has movable claw portions 212b and 212Bb, and the upper fixed claw portions 211a and 211Ba and the lower fixed claw portions 211b and 211Bb, and the upper movable claw portions 212a and 212Ba and the lower movable claw portions 212b and 212Bb are horizontally U-shaped, respectively. Since it is formed on the fixed claw portions 211 and 211B in the shape and the movable claw portions 212 and 212B in the horizontal U shape, it is formed on either one of the unit side connecting portion 12 and the driving side connecting portion 21 and 21B. The upper and lower flanges 121a and 121b of the horizontal T-shaped block TB are formed on one of the two horizontal U-shaped fixed claws 211 and 211B and the horizontal U-shaped movable claws 212 and 212B. Therefore, the unit 11 can be easily engaged or disengaged from the direction (Y direction) orthogonal to the reciprocating movement direction (X direction), and the horizontal U-shaped fixed claws 211, 211B and the horizontal U-shape formed on the other side. The movable claw portions 212 and 212B of the shape can sandwich the upper collar portion 121a and the lower collar portion 121b of the engaged horizontal T-shaped block TB in a well-balanced manner from the reciprocating movement direction (X direction). Therefore, the contact surfaces between the drive-side connecting portions 21 and 21B and the unit-side connecting portions 12 are not easily worn or deformed, and even if they are worn or deformed, one of the engaged surfaces is from the reciprocating movement direction (X direction). By sandwiching the product in a well-balanced manner in the vertical direction, it is possible to further reduce the backlash of the contact surface due to the change over time due to the load during driving.

INDUSTRIAL APPLICABILITY For example, the present invention can be used as a connecting mechanism for driving a mold, in which a unit inside the mold and a drive source arranged outside the mold and reciprocating the unit are connected so as to be detachably connected outside the mold. ..

1 Mold 2 Drive source 3, 3B One-way pressing mechanism 10, 10B Connection mechanism for mold drive 11 Unit 12 Unit side connection part 21, 21B Drive side connection part 121 Collar part 211, 211B Fixed claw part 212, 212B Movable claw Part 213, 213B Cam driver part 214, 214B Backup part 217, 217B Spring member 121a Upper collar part 121b Lower collar part 211a, 211Ba Upper fixed claw part 211b, 211Bb Lower fixed claw part 212a, 212Ba Upper movable claw part 212b, 212Bb Lower Movable claw TB Horizontal T-shaped block

Claims (3)

A coupling mechanism for driving a mold that connects a unit inside the mold and a drive source arranged outside the mold to reciprocate the unit so as to be detachably connected outside the mold.
The connecting mechanism includes a unit-side connecting portion connected to the unit and a driving-side connecting portion connected to the drive source.
One of the unit-side connecting portion and the driving-side connecting portion can be engaged with or disengaged from the other from the direction orthogonal to the reciprocating movement direction, and the engaged one can be engaged with the other from the reciprocating moving direction. It was formed so that it could be pinched ,
The other side is provided with a fixed claw portion and a movable claw portion that sandwich the one collar portion from both sides in the reciprocating movement direction, and a one-way pressing mechanism that presses the movable claw portion against the collar portion.
The one-way pressing mechanism includes a wedge-shaped cam driver portion that presses the movable claw portion against the collar portion, and a backup portion that guides the downward movement of the cam driver portion.
A connecting mechanism for driving a mold, wherein the fixed claw portion and the backup portion are integrally connected by a main body portion . In the coupling mechanism for driving a mold according to claim 1 ,
A connecting mechanism for driving a mold, characterized in that a spring member for urging downward is attached to the cam driver portion. In the coupling mechanism for driving a mold according to claim 1 or 2 .
One of the above is formed in a horizontal T-shaped block having an upper collar portion and a lower collar portion formed so as to project in the vertical direction.
The other has an upper fixed claw portion and an upper movable claw portion that sandwich the upper collar portion, and a lower fixed claw portion and a lower movable claw portion that sandwich the lower collar portion, and the upper fixed claw portion and the said A gold characterized in that the lower fixed claw portion, the upper movable claw portion, and the lower movable claw portion are formed into a horizontally U-shaped fixed claw portion and a horizontally U-shaped movable claw portion, respectively. Connecting mechanism for mold drive.

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