JP6312962B2 - Injection molding machine - Google Patents

Description

  The present invention relates to an injection molding machine.

  The injection molding machine 131 disclosed in Patent Document 1 will be described with reference to FIG. The injection molding machine 131 shown in FIG. 12 is configured such that, in a state where a plurality of molding molds 133 are attached to the rotary mold device 132, the rotary mold device 132 stops and the injection mold 134 faces one molding die 133. , And after taking out the molded product from another mold 133 facing the detachable device 135, the molded product is repeatedly rotated and stopped as the rotary mold device rotates in the direction indicated by the arrow 3. Is configured to be injection-molded.

  However, in the injection molding machine 131, since the molding die 133 is configured to open and close in the vertical direction, the rotary mold device 132, the injection device 134, and the attachment / detachment device 135 are necessary. Has the disadvantage of being complicated.

Japanese Patent Laid-Open No. 9-207138

  The present invention has been made in view of the above background art, and an object thereof is to provide an injection molding machine having a simple structure.

The present invention is, e Bei the the injection device and the rotary device, the one plurality of molds attached to the rotary device is a lateral direction around the central portion extending in the vertical direction of the rotary device by the motor unit repeating the rotation and stop and mold clamping of the rotary device, the injection of the injection apparatus, mold opening of the rotary device, by receiving the projecting of the rotary device turn met molding machine out morphism you injection molding a molded article The rotary type device is fixed to the device base portion, the device base portion fixed to the device housing portion of the injection molding machine, the main shaft portion rotatably provided on the device base portion, and disposed around the main shaft portion. A fixed housing portion, a rotating housing portion configured to be rotatable about the main shaft portion or the fixed housing portion, and a driving mechanism portion that synchronously rotates the main shaft portion and the driving vehicle of the Geneva mechanism in a one-to-one manner by rotation of the motor portion. And the rotating housing by the rotation of the prime mover The mold is laterally clamped and clamped while the Geneva mechanism that intermittently rotates the driven vehicle portion fixed to the shaft and the rotating housing portion that is generated at a rate of once per rotation of the main shaft portion. A mold-clamping mechanism part for releasing the mold, a mold opening mechanism part provided in the fixed housing part so as to open the mold after the injection of the molding material in the lateral direction as the rotating housing part rotates, and a main shaft part And a protrusion mechanism part that laterally protrudes the molded product from the mold after the mold is opened and releases the protrusion while the rotating housing part is generated at a rate of once per rotation. It is characterized by.

According to the present invention, a plurality of molds attached to a rotary mold device are repeatedly rotated and stopped in one of the lateral directions around a central portion extending in the vertical direction of the rotary mold device by a motor unit. Since the molded product is injection-molded by sequentially receiving mold clamping, injection of the injection apparatus, mold opening of the rotary mold apparatus, and protrusion of the rotary mold apparatus, the injection molding machine is simply composed of the rotary mold apparatus and the injection apparatus. There is an effect that can be provided with a simple structure. The present onset Ming, rotary device, the device base, which is fixed to the apparatus skeleton portion of an injection molding machine, a main shaft portion rotatably provided on apparatus base, disposed around the main shaft and device base The main body and the Geneva motor are synchronously rotated on a one-to-one basis by the rotation of the motor section and the main body or the main body of the Geneva mechanism. Drive mechanism section, a Geneva mechanism section that intermittently rotates the driven vehicle section fixed to the rotating casing section by the rotation of the driving section, and a rotating casing section that is generated at a rate of once per rotation of the main shaft section. The mold clamping mechanism that performs mold clamping in the lateral direction and release of mold clamping during the stop, and the mold after the molding material has been injected are opened laterally as the rotating housing rotates. Once for each rotation of the mold opening mechanism provided on the fixed housing and the main shaft Since a protrusion mechanism that performs the protrusion of the molded article from the mold after the mold opening while stopping the rotation skeleton portion occurring at a rate protrude release and laterally clamping the rotary device, type There exists an effect which can perform each operation | movement of opening and protrusion appropriately.

The front view which showed the injection molding machine which concerns on the form for inventing. The front view which showed the rotary apparatus which concerns on the form for inventing. The top view which showed the rotary apparatus which concerns on the form for inventing. Sectional drawing equivalent to the top view which showed the internal structure of the rotary apparatus which concerns on the form for inventing. Sectional drawing equivalent to the top view which showed the structure which attached the shaping | molding die to the internal structure of the rotary type | mold apparatus which concerns on the form for inventing. It is equivalent to the top view which showed the state where the mold clamping mechanism part clamped in the structure which attached the shaping | molding die to the internal structure of the rotary type | mold apparatus which concerns on the form for inventing, and the protrusion mechanism part performed the protrusion Sectional drawing. The perspective view which decomposed | disassembled and showed the shaping | molding die which concerns on the form for inventing. The perspective view which decomposed | disassembled and showed a part of 2nd type | mold which concerns on the form for inventing. The perspective view which decomposed | disassembled and showed all the 2nd type | molds concerning the form for inventing. The perspective view which the 2nd type | mold which concerns on the form for inventing showed. Sectional drawing which shows the inside of the 2nd type | mold which concerns on the form for inventing. The top view which showed the conventional injection molding machine.

  An injection molding machine 1 according to an embodiment for carrying out the invention will be described with reference to FIG. As shown in FIG. 1, the injection molding machine 1 includes a control device 3 and an injection device 4 in the device housing 2. The control device 3 is configured to control various conditions such as injection speed and pressure of injection molding. The injection device 4 is configured to plasticize and inject a molding material, and includes a hopper portion 5, an injection driving portion 6, and a nozzle portion 7. The nozzle portion 7 comes into contact with the molding die 12 of the rotary mold device 11 via the insertion hole 9 provided in the fixed plate portion 8 of the device housing portion 2 and injects the molding material, and then moves away from the molding die 12. It has become.

  In the injection molding machine 1, the rotary device 11 is attached to the fixed plate portion 8 of the device housing 2, and a plurality of molding dies 12 attached to the rotary device 11 are connected to the rotary device 11 by one motor unit 13. The rotation and stop are repeated in one of the lateral directions around the central portion 14 extending in the vertical direction, the clamping of the rotary device 11, the injection of the injection device 4, the mold opening of the rotary device 11, and the rotation of the rotary device 11. By projecting and sequentially receiving the mold closing of the rotary mold device 11, the molded product is injection molded.

  For example, when the rotary mold device 11 is stopped, the rotary mold device 11 performs lateral clamping on one molding die 12 facing the nozzle portion 7 of the injection device 4, and other than facing the nozzle portion 7. The rotary mold device 11 projects the molded product in the lateral direction with respect to one of the molds 12, and the injection device 4 injects the material laterally into the one mold 12 that is clamped. ing.

  Further, when the rotary mold device 11 rotates the plurality of molds 12 in one of the horizontal directions, the rotary mold device 11 molds with respect to the molds 12 other than the protrusions, injections, and protrusions. Opening and mold closing are performed in the horizontal direction.

  According to the injection molding machine 1 according to the embodiment for carrying out the invention of FIG. 1, the rotary mold device 11 has a plurality of molding dies 12 in a horizontal direction centered on a central part 14 extending in the vertical direction by one motor part 13. By repeatedly rotating and stopping in one of the directions, mold clamping, mold opening, ejection, and mold closing are performed in the lateral direction, and the mold 12 that has been clamped receives the injection of the injection device 4, and the mold opening The molded product can be ejected from the molded mold 12 and dropped.

  In FIG. 1, the device base 16 of the rotary device 11 is attached to the fixed plate portion 8 of the device housing 2, and the main shaft portion 18 of the rotary device 11 is rotatably provided on the device base 16. ing.

  With reference to FIG. 2 thru | or FIG. 3, the structure of the rotary apparatus 11 which concerns on the form for inventing is demonstrated. As shown in FIG. 2, the rotary device 11 includes a device base portion 16, a support column portion 17, a main shaft portion 18, a fixed housing portion 19, a rotating housing portion 20, a mold clamping mechanism portion 21, a mold opening mechanism portion 22, and an ejection mechanism. Part 23, mold closing mechanism part 24, Geneva mechanism part 25, and drive mechanism part 26.

  The device base portion 16 has a plurality of plate-like shapes facing each other in the vertical direction, and maintains an interval (synonymous with the interval between the head 62 a and the first mold 66 in FIG. 11) that is confronted by the plurality of support columns 17. It is the structure supported as above. Although not shown in the drawing, the lower device base 16 is formed with a space for dropping the molded product protruding from the molding die 12 after the mold opening to the device housing 2 side. The device base 16 is not limited to the configuration facing the vertical direction, and can be applied to a configuration provided on either the upper side or the lower side. The main shaft portion 18 is configured to be rotatably attached to both of the device base portions 16 facing each other up and down. However, in the case where the device base portion 16 is provided on either the upper side or the lower side, the one device A configuration in which the base 16 is rotatably attached is also applicable. The fixed housing portion 19 is configured around the main shaft portion 18 between the device base portions 16 and fixed to the device base portion 16. The rotating housing part 20 is arranged so as to surround the fixed housing part 19 between the apparatus base parts 16 and is rotatably attached to the main shaft part 18 or the fixed housing part 19.

  The mold clamping mechanism 21 is configured to push the mold 12 in the lateral direction, mold clamping, release the extrusion, and mold while the rotating housing 20 is stopped once per rotation of the main shaft 18. This is a configuration for releasing the tightening. It should be noted that the extrusion and release of the extrusion are removed from the mold clamping mechanism portion 21, and the nozzle portion 7 is moved to the molding die 12 side or the nozzle portion 7 is moved to the side away from the molding die 12. Thus, the present invention can also be applied to a configuration in which the molding die 12 that has received the injection of the molding material can be rotated.

  The mold opening mechanism portion 22 is a mechanism portion in which the molding die 12 after injection of the molding material opens the molding die 12 in the lateral direction as the rotating housing portion 20 rotates. The stationary housing portion 19 and the rotating housing portion 20. It is the structure arrange | positioned between and fixed to the fixed housing part 19. FIG.

  The ejecting mechanism unit 23 ejects the molded product from the mold 12 after the mold is opened and releases the projecting while the rotary housing unit 20 is stopped at a rate of once per rotation of the main shaft unit 18. The configuration is performed in the horizontal direction. The mold closing mechanism section 24 is a mechanism section in which the molding mold 12 after projecting the molded product closes the molding mold 12 in a lateral direction prior to mold clamping as the rotary casing section 20 rotates, and rotates with the fixed casing section 19. It is the structure which is arrange | positioned between the housing parts 20 and was fixed to the fixed housing part 19. FIG.

  The Geneva mechanism unit 25 is a mechanism unit that intermittently rotates the driven vehicle unit 28 by the rotation of the driving vehicle unit 27. For example, a pin or a roller (not shown) fixed to the driving vehicle unit 27 is formed in the driven vehicle unit 28. The driven vehicle portion 28 is rotated by moving in the groove portion 29, and when the pin or roller of the driven vehicle portion 27 comes out of the groove portion 29 of the driven vehicle portion 28, the driven vehicle portion 28 stops, and the driven vehicle portion 28 Is configured such that the driving vehicle unit 27 contacts the driven vehicle unit 28 so as not to move while the vehicle is stopped.

  The number of times that the driven vehicle unit 28 stops during one rotation of the driven vehicle unit 28 is configured to be the same as the number of molding dies 12 used in one rotary mold device 11. For example, when six molding dies 12 are used for one rotary mold device 11, the number of times the driven vehicle unit 28 stops during one rotation of the driven vehicle unit 28 is six.

  The prime mover 27 is disposed between the device base 16 and the rotary housing 20 and is fixed to a countershaft 30 that is rotatably installed on the device base 16. The driven vehicle unit 28 is arranged in a gap between the device base 16 and the rotating housing unit 20 and is fixed to the rotating housing unit 20. Therefore, with the intermittent rotation of the driven vehicle portion 28, the rotating housing portion 20 is configured to intermittently rotate about the main shaft portion 18.

  As shown in FIG. 3, the drive mechanism unit 26 is a mechanism unit that synchronously rotates the main shaft unit 18 and the sub shaft unit 30 on a one-to-one basis by the rotation of the output shaft 31 of the motor unit 13. The belt portion 32 is stretched between a driving wheel portion 33 fixed to the output shaft 31 portion of the motor portion 13, a driven wheel portion 34 fixed to the main shaft portion 18, and a driven wheel portion 35 fixed to the auxiliary shaft portion 30. It has a configuration. Each of the belt portion 32, the drive wheel portion 33, and the driven wheel portion 34; 35 is configured to have teeth that mesh with each other. Since the driving wheel portion 27 of the Geneva mechanism portion 25 is fixed to the auxiliary shaft portion 30 to which the driven wheel portion 35 is fixed, the driving shaft portion of the main shaft portion 18 and the Geneva mechanism portion 25 is rotated by the rotation of the output shaft 31. 27 is configured to rotate synchronously with one to one.

  With reference to FIG. 4, the internal structure of the rotary mold apparatus 11 according to the embodiment for carrying out the invention will be described by exemplifying a structure using six molds 12. The number of molds 12 installed in the rotary mold apparatus 11 is not limited to six, and two to five, seven or more can be applied. In FIG. 4, illustration of the apparatus base 16 and the support | pillar part 17 shown in FIG. 2 was abbreviate | omitted. The fixed housing portion 19 is exemplified by a hollow cylindrical configuration extending in the vertical direction, but is not limited to the cylindrical shape, and is not limited to the cylindrical shape, the mold clamping mechanism portion 21, the mold opening mechanism portion 22, the ejecting mechanism portion 23, and the mold closing. Any structure that can be installed with the mechanism 24 is applicable.

  The rotating housing part 20 includes a plurality of arm parts 42 in which a pair of support wall parts 41 confronting each other in the vertical direction protrude radially outward from the rotation center part 14 of the rotating housing part 20, and an outer end of each arm part 42. A plurality of outer wall parts 43 individually connected over the part are provided with a mold attaching part 44. The plurality of arm portions 42 and the plurality of outer wall portions 43 are the same as the number of molding dies 12 used in one rotary mold device 11.

  The mold clamping mechanism unit 21 is configured to push the mold 12 toward the nozzle unit 7 side and mold the push unit 46 while reciprocating in the direction of the main shaft unit 18 and the nozzle unit 7 while the rotary housing unit 20 is stopped. In this configuration, clamping and pushing are released and mold clamping is released. The push portion 46 is provided in a portion between the main shaft portion 18 and the nozzle portion 7 of the fixed housing portion 19 and moves from the main shaft portion 18 side to the nozzle portion 7 side, thereby pushing out the mold 12 and clamping. And releasing the extrusion and releasing the mold clamping by moving from the nozzle portion 7 side to the main shaft portion 18 side.

  The mold clamping mechanism 21 includes a cam part 47 and a follower part 48. The cam portion 47 is fixed to the main shaft portion 18, and the follower portion 48 is provided at the end portion of the push portion 46 on the side of the main shaft portion 18 relative to the fixed housing portion 19. Following rotation of the cam portion 47 while the rotary housing portion 20 is stopped, the follower portion 48 reciprocates the push portion 46 in the direction of the main shaft portion 18 and the nozzle portion 7 and pushes it toward the mold portion 12 toward the nozzle portion 7 side. And mold clamping, extruding release, and mold clamping releasing.

  The cam portion 47 is exemplified by the structure of the circumferential cam, and the follower portion 48 is pressed against the cam portion 47 by the elastic body 49. However, the cam portion 47 is configured as a groove cam, and the follower portion 48 is formed by the groove cam. It can also be applied to a moving structure. The cam portion 47 may be configured as a crank portion provided in the main shaft portion 18, and the push portion 46 may be configured to be reciprocally movable by this crank portion.

  The mold opening mechanism portion 22 includes a guide rail portion 51 fixed to the outer wall portion 43 of the fixed housing portion 19, and guides the molding die 12 after the molding material is injected while passing through the rotation of the rotating housing portion 20. The rail portion 51 is configured to open the mold 12 by pulling it toward the main shaft portion 18 side. The present invention can also be applied to the case where the guide rail portion 51 is constituted by a guide roller portion that is rotatably provided on the outer wall portion 43. If the movement distance in the lateral direction of the push part 46 of the mold clamping mechanism 21 can be increased, the mold opening mechanism 22 can be omitted.

  The ejecting mechanism portion 23 is configured to eject the molded product and release the ejected portion by the push portion 53 reciprocating in the diameter direction of the main shaft portion 18 while the rotary housing portion 20 is stopped. The push portion 53 is provided at a portion between the main shaft portion 18 of the fixed housing portion 19 and the molding die 12 (see FIG. 5) stopped at the molded product removal position 54, and the molded product removal position 54 from the main shaft portion 18 side. The molded product is ejected by moving to the side of the molding die 12 stopped at the same time, and the ejection of the molded product is released by moving from the side of the molding die 12 stopped to the molded product take-out position 54 to the main shaft portion 18 side. It is the structure which performs.

  Further, the ejecting mechanism portion 23 includes a crank portion 55 and a follower portion 56. The crank portion 55 is fixed to the main shaft portion 18, and the follower portion 56 is provided at the end portion of the push portion 53 on the side of the main shaft portion 18 relative to the fixed housing portion 19. As the crank portion 55 rotates while the rotating housing portion 20 is stopped, the follower portion 56 reciprocates in the direction of the mold 12 and the main shaft portion 18 where the push portion 53 is stopped at the molded product take-out position 54, and the molded product is ejected. And releasing the protrusion.

  The crank portion 55 may be configured as a cam portion including a circumferential cam or a groove cam provided in the main shaft portion 18, and the push portion 53 may be configured to be reciprocally movable by this cam portion.

  The mold closing mechanism section 24 includes a guide roller section 57 that is rotatably provided on the stationary casing section 19, and the guide roller section 57 while the molding mold 12 after the injection of the molding material is rotating the rotating casing section 20. Is a configuration in which the mold 12 is closed by pushing the mold 12 away from the main shaft portion 18. The present invention can also be applied to a case where the guide roller portion 57 is constituted by a guide rail portion fixed to the fixed housing portion 19.

  With reference to FIG.5 and FIG.6, operation | movement of the six shaping | molding die 12 installed in the rotary housing | casing part 20 of the rotary type | mold apparatus 11 which concerns on the form for implementing invention shown in FIG. 4 is demonstrated. In FIGS. 5 and 6, the rotary housing portion 20 is in a stopped state, and the molding die 12 facing the nozzle portion 7 is expressed as 121, and the position is one by one on the rotational direction 58 side from the molding die 121. The shifted mold 12 was expressed as 122 to 126. In a state in which the first mold 66 in the molding dies 121 to 126 is disposed on the outer side and the second mold is disposed on the inner side, that is, on the main shaft portion 18 side, and the molding dies 121 to 126 are attached to the rotary casing 20. is there.

  In FIG. 5, the mold 122; 123 is injected into the mold 122; 123 in a state where the mold 121 faces the push part 46 of the mold clamping mechanism 21 and the push part 46 is separated from the mold 121 and stopped at the retracted position. The mold opening portion 109 of the molding die 124 is in a state in which the mold opening portion 109 of the molding die 123 reaches the entrance portion of the guide rail portion 51 of the mold opening mechanism portion 22. With the rotation of the rotary housing 20, the guide rail 51 of the mold opening mechanism 22 is pulled toward the main shaft 18 by the guide rail 51, and the mold 124 is opened (the mold opening 109 of the mold 124 is the main shaft 18. In a state in which a gap 59 is formed between the first die 66 and the second die 67), and the molding die 125 in an open state faces the push portion 53 of the ejecting mechanism portion 23 to push the push portion. 3 is separated from the mold 125 and stopped at the stop and retract position, and the closed portion 103 of the mold 126 after the molded product is taken out is rotated along with the rotation of the rotating housing section 20 and the guide roller section of the mold closing mechanism section 24. 57 in a state in which the molding die 126 is closed by being pushed away from the fixed housing portion 19 (the second die 67 of the molding die 126 is pushed to the side away from the main shaft portion 18 in the closed portion 103, and the first die 66 and The second mold 67 is in contact with each other).

  In FIG. 6, the rotation of the main shaft portion 18 proceeds from the state shown in FIG. 5 while the rotary housing portion 20 is stopped, and the first die 66 and the second die 67 of the molding die 121 are connected to the clamping mechanism portion 21. A state in which the push portion 46 is pushed out toward the nozzle portion 7 and the mold is clamped (the support housing portion 86 of the mold 121 is pushed by the push portion 46, and the second die 67 moves the first die 66 to the nozzle portion. 7 and the mold is clamped. The nozzle portion 7 injects a molding material into the mold 121 that has been clamped.

  In FIG. 6, the rotation of the main shaft portion 18 proceeds while the rotating housing portion 20 is stopped from the state shown in FIG. 5, and the protruding base portion 88 of the mold 125 is fixed by the push portion 53 of the protruding mechanism portion 23. Pushed in the direction away from the portion 19, the protruding portion 89 protrudes a molded product (not shown) into the gap 59 between the first die 66 and the second die 67. Note that the unillustrated molded product protruding into the gap 59 by the protruding portion 89 falls downward (in the direction from the front side to the back side in FIG. 6) between the arms 59 of the rotary casing 20. And is taken out of the rotary device 11.

  With reference to FIG. 7, the structure of the shaping | molding die 12 which concerns on the form for inventing is demonstrated. The mold 12 shown in FIG. 7 is a general term for the molds 121 to 126 used in the rotary mold apparatus 11 according to the embodiment for implementing the invention shown in FIGS. 5 and 6.

  As shown in FIG. 7, the molding die 12 includes a mold housing portion 61, a guide portion 62; 63, a support column portion 64, an elastic body 65, a first die 66, and a second die 67. 7 illustrates a structure in which four guide portions 62, guide portions 63, support columns 64, and elastic bodies 65 are provided. However, the guide portions 62, guide portions 63, support columns 64, and elastic bodies 65 are provided. The number is not limited to four, and a single or a plurality can be applied.

  The mold housing part 61 includes a mold housing part 68, a mold receiving part 69, an attachment part 70, an insertion part 71, a mold passage part 72, and an attachment part 73.

  The mold housing portion 68 is configured to penetrate the mold housing portion 61 as a housing for the first mold 66. The mold receiving part 69 is provided on a pair of opposite side parts of the mold accommodating part 68 and is configured to receive the first mold 66 accommodated in the first accommodating part. A plurality of the attachment portions 70 are provided in each of the die receiving portions 69 as through-hole portions or screw hole portions. The screw hole portion has a structure in which a female screw is formed on the inner peripheral surface portion of the hole.

  A plurality of insertion portions 71 are provided in each of the mold receiving portions 69 as through-hole portions into which the support column portions 64 can be inserted. The mold passage part 72 is configured to penetrate the mold accommodating part 68 between the mold receiving parts 69 as an opening for accommodating the second mold 67. In order to attach the mold housing part 61 to the mold mounting part 44 of the rotary housing part 20 shown in FIG. 4, a plurality of attachment parts 73 are provided on a pair of opposite side parts of the mold housing part 61 as through holes or screw holes. This is a configuration provided one by one. Both side portions where the mounting portion 73 is provided and both side portions where the die receiving portion 69 is provided are in the same direction.

  The first mold 66 includes a forming part 75, a guide hole part 76, an attachment part 77, and a gate part 78. The molding part 75 is not limited to a single part, but may be a plurality. This is a configuration provided on the surface of the first mold 66 on the second mold 67 side. The number of the forming portions 75 is such that a plurality of guide hole portions 76 are provided in the first die 66 as through hole portions for guiding the guide portion 62. A plurality of attachment portions 77 are provided in the first mold 66 as through-hole portions or screw hole portions. The gate portion 78 has a configuration provided in the first die 66 as a through-hole portion that guides the molding material injected from the nozzle portion 7 shown in FIG. 1 to the molding portion 75. The number of gate portions 78 is not limited to a single number but may be a plurality. Returning to FIG. 7, in the first mold 66, the guide part 63 is provided as a member for guiding the second mold 67 so as to protrude from the surface part where the molding part 75 of the first mold 66 is provided to the second mold 67 side. It has become a modeling.

  In FIG. 7, a method of assembling the first mold 66 and the mold housing 61 will be described. The guide portion 63 is inserted into the die passage portion 72 from between the die accommodating portion 68 and the die receiving portion 69, and the first die 66 is accommodated in the die accommodating portion 68 and received by the die receiving portion 69. . The guide part 62 is attached to the attachment part 70 via the guide hole part 76. Between the head 62 a of the guide part 62 attached to the attachment part 70 and the first mold 66, a movable interval is formed so that the first mold 66 is guided by the guide part 62 with respect to the mold housing part 61. Is done. The head portion 62 a has a larger outer diameter than the guide portion 62 and is configured to prevent the first die 66 from falling off from the mold housing portion 61. As the structure in which the guide part 62 is attached to the attachment part 70, for example, a structure using a screw or a structure using joining by welding or caulking can be considered.

  Further, in a state in which the elastic body 65 is mounted on the column portion 64 so as to surround the column portion 64, the tip portion protruding from the elastic body 65 of the column portion 64 extends from the insertion portion 71 of the mold housing portion 61 to the first mold. 66, the elastic body 65 comes into contact with both the head 64a of the support column 64 and the mold receiving part 69, so that the first mold 66 comes into contact with the mold receiving part 69. In this configuration, elasticity is applied to the first mold 66. The head portion 64 a has a larger outer diameter than the column portion 64 and is configured to prevent the elastic body 65 from falling off the column portion 64. As the structure in which the column part 64 is attached to the attachment part 77, for example, a structure using a screw or a structure using joining by welding or caulking can be considered.

  As described above, the first die 66, the guide portion 62, the column portion 64, and the elastic body 65 are attached to the die housing portion 61, so that the first die 66 is in contact with the die receiving portion 69 by the elastic body 65. , The first die 66 is pushed from the second die 67 side, so that the first die 66 is guided by the guide portion 62 while resisting the elasticity of the elastic body 65 and moves away from the die receiving portion 69. To do.

  The guide hole 63 of the second die 67 is movably fitted in the guide portion 63 inserted into the die passage portion 72, and the surface portion of the second die 67 on the side of the molding portion 75 and the second die 67. The molding portion 80 side surface portion contacts each other, and the molding portion 75 of the first mold 66 and the molding portion 80 of the second mold 67 constitute a molding space portion of the molding die 12. In the molding space configured as described above, the molding material injected from the nozzle portion 7 shown in FIG. 1 is injected from the gate portion 78 of the first mold 66 to become a molded product having a predetermined shape.

  With reference to FIG.8 and FIG.9, the structure of the 2nd type | mold 67 which concerns on the form for inventing is demonstrated. The second mold 67 includes the second mold base 81, the second mold lid section 82, the in-mold guide section 83, the elastic body 84, and the fixture 105 shown in FIG. 8, and the support casing section 86 shown in FIG. The positioning base portion 87, the protruding base portion 88, the protruding portion 89, the guide portion 90, the elastic body 91, and the fixtures 116; 117; 118 are provided.

  As shown in FIG. 8, the second mold base 81 includes a forming part 80, an insertion hole part 93; 94, a guide hole part 95; 96; 97, a storage part 98, and a receiving part 99. The molding part 80 has a configuration provided on the surface part of the second mold base 81 on the first mold 66 (see FIG. 7) side. The insertion hole 93 inserts a fixture 117 (see FIG. 9) for connecting the positioning base 87 (see FIG. 9) to the second mold base 81 while resisting the elasticity of the elastic body 91 (see FIG. 9). This is a configuration provided in the second mold base 81 as a through hole. The insertion hole portion 94 is provided in the second mold base portion 81 as a through hole portion into which a fixture 105 such as a bolt for coupling the second mold base portion 81 and the second mold lid portion 82 to each other is inserted. is there.

  In FIG. 8, the guide hole portion 95 has a configuration provided in the second mold base portion 81 as a through hole portion that guides the guide portion 63 (see FIG. 7). The guide hole 96 has a configuration provided in the second mold base 81 as a through hole or a recess for guiding the guide 90 (see FIG. 9). The guide hole 97 has a configuration provided in the second mold base 81 as a through hole that guides the protrusion 89 (see FIG. 9). The accommodating portion 98 is a portion that accommodates the in-mold guide portion 83, and is configured to be provided in the second mold base 81 as a recess from the surface of the second mold base 81 on the second mold lid portion 82 side to the inside. is there. The receiving part 99 accommodates the elastic body 91 (see FIG. 9), and has a configuration provided in the second mold base 81.

  The second mold lid portion 82 includes a central opening 100, a receiving portion 101, a guide hole portion 102, a closed portion 103, and an attachment portion 104. The central opening 100 is provided in the second mold lid portion 82 as a through-hole portion that accommodates the in-mold guide portion 83, the positioning base portion 87 (see FIG. 9), and the protruding base portion 88 (see FIG. 9). . The receiving part 101 is a structure provided in the 2nd type | mold cover part 82 so that it may protrude in a pair of both-sides part which the center opening part 100 opposes as a part which receives the elastic body 84. FIG. Both side portions where the receiving portion 101 is provided are in the same direction as both side portions where the die receiving portion 69 (see FIG. 7) is provided. The guide hole portion 102 has a configuration provided in the second mold lid portion 82 as a through hole portion that guides the guide portion 63 (see FIG. 7). The closed portion 103 is pushed by the guide roller portion 57 (see FIG. 4) of the mold closing mechanism portion 24 (see FIG. 4), and is opposed to a direction orthogonal to the facing direction of the receiving portion 101. This is a configuration provided in the type 2 lid 82. The attachment portion 104 is configured to be provided in the closed portion 103 as a screw hole portion or a through hole portion for attaching the fixture 105 for coupling the second mold base portion 81 and the second mold lid portion 82 to each other.

  The in-mold guide portion 83 guides the support housing portion 86 when the support housing portion 86 (see FIG. 9) is pulled out by the guide rail portion (see FIG. 6) of the mold opening mechanism portion 22. And a mounting portion 107. The accommodating portion 106 is configured to be provided in the in-mold guide portion 83 so as to accommodate the elastic body 84. The attachment part 107 is a structure provided in the in-mold guide part 83 as a part for attaching the support housing part 86 (see FIG. 9).

  In FIG. 8, a method of assembling the second mold base 81, the second mold lid 82, the in-mold guide 83, the elastic body 84, and the fixture 85 will be described. The accommodating portion 106 and the attaching portion 107 are directed toward the second mold lid portion 82, the in-mold guide portion 83 is individually accommodated in the accommodating portion 98, and the elastic body 84 is accommodated in the accommodating portion 106 of the in-mold guide portion 83. Be contained. Next, when the second mold lid portion 82 is put on the second mold base portion 81, the elastic body 84 and the in-mold guide portion 83 are taken into the central opening 100 of the second mold lid portion 82 to receive the second mold lid portion 82. The part 101 covers the elastic body 84, and the attachment part 107 of the in-mold guide part 83 is exposed between the receiving parts 101. In this state, the fixture 105 is mounted from the insertion hole portion 94 of the second mold base 81 to the mounting portion 104 of the second mold lid 82, and the second mold base 81 and the second mold lid 82 come into contact with each other. Combined and integrated as shown in FIG. When the second mold base 81 and the second mold lid 82 are combined, the guide hole 95 and the guide hole 102 shown in FIG. 8 constitute the guide hole 79 shown in FIG.

  As shown in FIG. 9, the support housing portion 86 has a facing direction of the closed portion 103 in the assembly including the second mold base portion 81, the second mold lid portion 82, the in-mold guide portion 83, and the elastic body 84. Are a pair of configurations facing each other in the same direction, and includes a mounting portion 108 and a mold opening portion 109. The attachment portion 108 is configured to be divided into both sides at the lower portion of the support housing portion 86 as an aspect having a through-hole portion for inserting a fixture 116 such as a bolt. Both side portions provided with the mounting portion 108 are in the same direction as the facing direction of the in-mold guide portion 83.

  The mold opening portion 109 is attracted by the guide rail portion 51 (see FIG. 6), and is configured as a roller portion provided at the upper center of the support housing portion 86. The mold opening 109 can be applied to a protrusion that does not rotate. However, if the roller is the above-described roller, the mold opening 109 rotates when the guide rail 51 is pulled, and the guide rail 51 is molded. The opening 109 can be pulled smoothly. The attachment portion 108 of the support housing portion 86 is fixed to the attachment portion 107 of the in-mold guide portion 83 with a fixture 116 such as a bolt, so that the support housing portion 86 of the closed portion 103 is shown in FIG. The mold is fixed to the in-mold guide part 83 in a state of facing the same direction as the facing direction and is superimposed on a portion surrounding the central opening 100 of the second mold lid part 82.

  The positioning base portion 87 is sized to be accommodated in a space portion between the pair of in-mold guide portions 83 in the central opening 100, and determines the positions of the protruding portion 89 and the guide portion 90, and is attached to the positioning base portion 87. It is the structure provided with the part 110; 111, the insertion hole part 112; 113, and the receiving part 114. FIG. The attachment portion 110 is for attaching the fixture 117, and has a configuration provided in the positioning base 87 as a through hole portion or a screw hole portion facing the insertion hole portion 93. The attachment portion 111 is for attaching the fixture 118 and is provided on the positioning base portion 87 as a through hole portion or a screw hole portion.

  The insertion hole portion 112 is for positioning the guide portion 90 and is provided in the positioning base portion 87 corresponding to the guide hole portion 96 (see FIG. 8). The insertion hole portion 113 positions the protruding portion 89 and is provided in the positioning base portion 87 corresponding to the guide hole portion 97 (see FIG. 8). The receiving part 114 accommodates the elastic body 91, and is a structure provided in the positioning base 87 corresponding to the receiving part 99 (refer FIG. 8).

  The protruding base portion 88 is sized to be accommodated in the space between the pair of in-mold guide portions 83 in the central opening 100, and is pushed by the push portion 53 (see FIG. 4) of the protruding mechanism portion 23. Thus, the protruding portion 89 and the guide portion 90 are protruded, and the mounting portion 115 is provided. The attachment part 115 is a structure provided in the protrusion base part 88 as a through-hole part into which the fixture 118 such as a bolt is inserted.

  In FIG. 9, a positioning base 87, a protruding base 88, a protruding portion 89, a guide portion 90, and an elastic body 91 are formed from a second mold base 81, a second mold lid portion 82, an in-mold guide portion 83, and an elastic body 84. The case where it attaches to the assembly which becomes is demonstrated. The elastic body 91 is accommodated in the receiving portion 99 (see FIG. 8) from the central opening portion 100 of the assembly, the positioning base portion 87 is accommodated in the central opening portion 100, and the receiving portion 114 of the positioning base portion 87 covers the elastic body 91. In this manner, the elastic body 91 is provided with elasticity in the direction in which the elastic body 91 is removed from the central opening 100 (see FIG. 11 for this aspect).

  Further, in FIG. 9, the protruding portion 89 is inserted into the guide hole portion 97 (see FIG. 8) of the assembly through the insertion hole portion 113, and the guide portion 90 is inserted into the guide hole portion 96 (see FIG. 8) of the assembly from the insertion hole portion 112. The fixing tool 117 such as a bolt is attached to the mounting part 110 of the positioning base 87 from the insertion hole 93 of the assembly, and the head part 117a of the fixing tool 117 resists the elasticity of the elastic body 91. The position is maintained so that the positioning base 87 that contacts around the insertion hole 93 of the assembly and receives elasticity from the elastic body 91 does not come out of the central opening 100. The head 117a is configured to have a larger outer diameter than the fixture 117.

  Next, the protruding base 88 is placed on the positioning base 87, and a fixture 118 such as a bolt is attached from the mounting portion 115 of the protruding base 88 to the mounting portion 111 of the positioning base 87, and the head 89a of the protruding portion 89 and the guide The head 90 a of the portion 90 is sandwiched between the positioning base 87 and the protruding base 88 and supported. The head 89 a is configured to have a larger outer diameter than the protruding portion 89. The head 90 a has a larger outer diameter than the guide portion 90.

  As described with reference to FIGS. 8 and 9, the second mold base 81, the second mold lid section 82, the in-mold guide section 83, the elastic body 84, the support housing section 86 illustrated in FIG. By assembling the base 87, the protruding base 88, the protruding portion 89, the guide portion 90, and the elastic body 91, the second mold 67 is integrally configured as shown in FIG.

  With reference to FIG. 11, the internal structure of the shaping | molding die 12 which concerns on the form for inventing is demonstrated. In FIG. 11, the elastic body 65 is disposed between the head portion 64 a of the column portion 64 and the mold receiving portion 69 of the mold housing portion 61 so as to contact the head portion 64 a and the mold receiving portion 69 to receive the mold. The first mold 66 is provided with elasticity in a direction in contact with the portion 69. When the support housing portion 86 receives an external force in the direction indicated by the arrow X <b> 1 away from the main shaft portion 18, the external force is formed from the support housing portion 86 by the second mold base 81 and the second mold lid portion 82. The first mold 66 is transmitted to the first mold 66 via 67, and moves away from the mold receiving portion 69 toward the head 62a while being guided by the guide portion 62 while resisting the elasticity of the elastic body 65. It is.

  Further, the elastic body 84 is disposed between the in-mold guide portion 83 and the receiving portion 101, and the elasticity in the direction in which the elastic body 84 comes into contact with the in-mold guide portion 83 and the receiving portion 101 and contacts the second mold base 81 is in-mold. The configuration is given to the guide part 83. When the mold opening portion 109 receives an external force in the direction indicated by the arrow X2 toward the main shaft portion 18, the external force is applied from the mold opening portion 109 to the in-mold guide portion 83 via the support housing portion 86. Then, after the in-mold guide part 83 resists the elasticity of the elastic body 84 and moves toward the main shaft part 18 and the compression of the elastic body 84 reaches the limit, the second mold base 81 and the second mold lid part The second die 67 consisting of 82 moves away from the first die 66 while being guided by the guide portion 63 by the external force in the direction toward the main shaft portion 18 side, and moves toward the main shaft portion 18 side. A gap 59 (see FIG. 6) is formed between the first mold 66 and the first mold 66.

  Further, the elastic body 91 is disposed between the second mold base 81 and the positioning base 87, and comes into contact with the second mold base 81 and the positioning base 87 to provide elasticity in the direction toward the main shaft 18 to the positioning base 87. The protrusion base 88 is fixed to the positioning base 87 with a fixture 118 (see FIG. 9) and supports the head 89a of the protrusion 89 and the head 90a of the guide part 90. When the gap 59 (see FIG. 6) is formed between the first mold 66 and the second mold 67 as described above, the protruding base 88 receives an external force in the direction indicated by the arrow X1 away from the main shaft portion 18. The external force is transmitted from the protruding base 88 to the positioning base 87 via the heads 89a and 90a, and the positioning base 87 resists the elasticity of the elastic body 91 and moves to the second mold base 81 side. 89 and guide 90 and the fixture 117 is configured to protrude into the gap 59 between the second type 67 from the second type base part 81 and the first mold 66.

  In addition, the molding space part of the shaping | molding die 12 used as the shaping | molding part 75 of the 1st type | mold 66 in FIG. 11 and the shaping | molding part 80 of the 2nd type | mold 67 is an example, and is not limited to the shape and number shown in figure, A plurality A single gate portion 78 is also provided for each molding space portion.

DESCRIPTION OF SYMBOLS 1 is an injection molding machine, 2 is a mounting body part, 3 is a control apparatus, 4 is an injection apparatus, 5 is a hopper part, 6 is an injection drive part, 7 is a nozzle part, 8 is a fixed plate part, 9 is an insertion hole part, 11 is a rotary type device, 12 (121 to 126) is a molding die, 13 is a motor unit, 14 is a central part of the rotary type device 11 (rotation center of the rotary type device 11), 15 is a missing number, 16 is a device base, 17 Is a column part, 18 is a main shaft part, 19 is a fixed housing part, 20 is a rotating housing part, 21 is a mold clamping mechanism part, 22 is a mold opening mechanism part, 23 is an ejection mechanism part, 24 is a mold closing mechanism part, and 25 is Geneva mechanism part, 26 drive mechanism part, 27 prime mover part, 28 follower part, 29 groove part, 30 auxiliary shaft part, 31 output shaft, 32 belt part, 33 drive wheel part, 34; 35 is a driven wheel part, 36 is a missing part through 40, 41 is a support wall part, 42 is an arm part, 43 is an outer wall part, 44 is Mounting part, 45 is missing number, 46 is push part, 47 is cam part, 48 is follower part, 49 is elastic body, 50 is missing number, 51 is guide rail part, 52 is missing number, 53 is push part, 54 is molded product Take-out position, 55 is a crank part, 56 is a follower part, 57 is a guide roller part, 58 is a rotation direction of the rotary housing part 20, 59 is a gap, 60 is a missing number, 61 is a mold housing part, 62 is a guide part, 62a is The head part of the guide part 62, 63 is a guide part, 64 is a support | pillar part, 64a is the head part of the support | pillar part 64, 65 is an elastic body, 66 is a 1st type | mold, 67 is a 2nd type | mold, 68 is a type | mold accommodation part, 69 Is a mold receiving part, 70 is an attachment part, 71 is an insertion part, 72 is a two-type accommodation part, 73 is an attachment part, 74 is a missing part, 75 is a molding part, 76 is a guide hole part, 77 is an attachment part, 78 is Gate part, 79 is a guide hole part, 80 is a molding part, 81 is a 2nd type | mold base part 82 is a second mold lid part, 83 is an in-mold guide part, 84 is an elastic body, 85 is a fixture, 86 is a support housing part, 87 is a positioning base part, 88 is a protruding base part, 89 is a protruding part, 89a is a protruding part 89 heads, 90 is a guide part, 90a is a head part of the guide part 90, 91 is an elastic body, 92 is a missing number, 93; 94 is an insertion hole part, 95; 96; 97 is a guide hole part, 98 is a receiving part , 99 is a receiving portion, 100 is a central opening portion, 101 is a receiving portion, 102 is a guide hole portion, 103 is a closed portion, 104 is a mounting portion, 105 is a fixture, 106 is a receiving portion, 107 is a mounting portion, 108 Is an opening part, 109 is a mounting part, 110 is a mounting part, 112 is a insertion hole part, 114 is a receiving part, 115 is a mounting part, 116; 117; 118 is a fixing tool, 117a is a fixing tool 117 Head 131, injection molding machine 132 Type device, 133 mold 134 injection unit 135 is detachable device.

Claims (1)

E Bei the the injection device and the rotary device, the rotation center portion extending in the vertical direction on one of the lateral centering of the rotary plurality of molds attached to device the rotary device by the motor unit repeating the stop, clamping in the transverse direction of the rotary device, exit from the lateral direction of the injection apparatus, mold opening in the lateral direction of the rotary device, the protruding in the lateral direction of the rotary device by receiving order, a molding machine out morphism it injection molding a molded article, the rotary device, the device base, which is fixed to the apparatus skeleton portion of an injection molding machine, is rotatably provided at the device base A main shaft portion, a fixed housing portion arranged around the main shaft portion and fixed to the apparatus base, a rotating housing portion configured to be rotatable around the main shaft portion or the fixed housing portion, and a main shaft portion by rotation of the motor portion One-to-one with the Geneva Motors A drive mechanism section that rotates synchronously, a Geneva mechanism section that intermittently rotates a driven vehicle section fixed to the rotating casing section by the rotation of the prime mover section, and a rotating casing that is generated at a rate of one rotation of the main shaft section The mold clamping mechanism that performs mold clamping in the lateral direction and release of mold clamping while the mold is stopped, and the mold after the molding material has been injected are opened laterally as the rotating housing rotates. The mold opening mechanism provided in the fixed housing portion as described above, and the protrusion of the molded product from the mold after opening the mold while the rotating housing portion is stopped at a rate of once per rotation of the main shaft portion, molding machine out morphism you characterized that you and a protrusion mechanism that performs the release of the projecting laterally.

Images