CN217144779U - Mold locking structure of two-plate injection molding machine - Google Patents
Mold locking structure of two-plate injection molding machine Download PDFInfo
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- CN217144779U CN217144779U CN202220922997.6U CN202220922997U CN217144779U CN 217144779 U CN217144779 U CN 217144779U CN 202220922997 U CN202220922997 U CN 202220922997U CN 217144779 U CN217144779 U CN 217144779U
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 54
- 238000002347 injection Methods 0.000 abstract description 21
- 239000007924 injection Substances 0.000 abstract description 21
- 238000009434 installation Methods 0.000 abstract description 6
- 239000003921 oil Substances 0.000 description 16
- 230000003139 buffering effect Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of injection molding machines, in particular to a mold locking structure of a two-plate injection molding machine, which comprises a tail plate, a driving piece, a connecting guide post and a fixed head plate provided with an injection molding port; the tail part of the connecting guide post is a clamped section and is provided with a clamping groove; the tail plate is provided with a clamping assembly, and the clamped sections respectively penetrate through the clamping assembly; when viewed axially, the boundary of the fixed head plate is a boundary rectangle, the center of the boundary rectangle is a rectangle center, and a horizontal line and a vertical line passing through the rectangle center are respectively a transverse center line and a longitudinal center line; the tail plate is positioned in the boundary rectangle; the diameter of the connecting guide post is less than fifteen percent of the shorter side of the center of the rectangle; the number of the inner guide posts is integral multiple of four, and the inner guide posts are arranged in mirror symmetry with respect to the transverse center line and the longitudinal center line; the inner guide posts are positioned at the same level as the outer guide posts. The utility model discloses can provide great installation space for injection mold for fixed head board or tailboard atress are more even.
Description
Technical Field
The utility model relates to an injection molding machine technical field, in particular to two board injection molding machine mode locking structures.
Background
CN212266573U discloses a mold locking structure of a hydraulic mold locking injection molding machine, which comprises a movable plate, a tail plate assembly, a connecting assembly and a fixed plate; the tail plate assembly comprises a tail plate plunger and a tail plate provided with a tail plate plunger cavity; the tail plate plunger is embedded into the tail plate plunger cavity, and one end of the tail plate plunger is fixedly connected with the movable plate; the section of the movable plate and the section of the tail plate are both rectangular integrally; the movable plate and the tail plate assembly are connected with the fixed plate in a linear movable mode through the connecting assembly; the tailgate plungers and the tailgate plunger cavities) are equal in number and are more than two. Wherein, the connecting guide posts are four and distributed at four corners of the movable plate.
CN212266573U discloses a mold locking structure of a hydraulic mold locking injection molding machine, which is generally applicable to the situation of small mold locking clamping force, for example, the mold locking clamping force is less than 8000 tons. However, with the development of the economic society, there is a growing demand for injection molding machines having a mold clamping force of 8000 tons or more.
In summary, the prior art has at least the following technical problems,
first, the CN212266573U structure is theoretically scaled up, for example, the diameter of the connecting guide post is scaled up, so that the applicable clamping force of the mold lock can be scaled up. However, when the diameter of the connecting guide post exceeds a specific value, it must be specially customized, which results in increased difficulty in manufacturing and greatly increased production cost and production period.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve or alleviate the above-mentioned first technical problem.
The utility model adopts the measure that the mold locking structure of the two-plate injection molding machine comprises a tail plate, a driving piece, a connecting guide post and a fixed head plate provided with an injection molding port; the tail part of the connecting guide post is a clamped section and is provided with a clamping groove; the tail plate is provided with a clamping assembly, and the clamped sections respectively penetrate through the clamping assembly; when viewed axially, the boundary of the fixed head plate is a boundary rectangle, the center of the boundary rectangle is a rectangle center, and a horizontal line and a vertical line passing through the rectangle center are respectively a transverse center line and a longitudinal center line; the tail plate is positioned in the boundary rectangle; the diameter of the connecting guide post is less than fifteen percent of the shorter side of the center of the rectangle; the connecting guide post comprises an outer guide post and an inner guide post; the outer guide posts are positioned at four corners of the boundary rectangle, and each inner guide post is close to the center of the rectangle relative to the corresponding outer guide post; the number of the inner guide posts is integral multiple of four, and the inner guide posts are arranged in mirror symmetry with respect to the transverse center line and the longitudinal center line; the inner guide posts are positioned at the same level as the outer guide posts.
The utility model discloses the effect that reaches does, can provide great installation space for injection mold, can make fixed head board or tailboard atress more even.
According to the further technical scheme, the width and the length of the boundary rectangle are respectively the width and the length of the boundary rectangle, the width of the boundary rectangle is smaller than the length of the boundary rectangle, and the edge where the length of the boundary rectangle of the fixed head plate is located is fixedly provided with the standing foot. The fixed head plate is in a transverse state when in use and is relatively stable.
In a further technical scheme, the number of the inner guide posts is four.
Further technical scheme is provided with guide post high pressure subassembly on the fixed head board, connects guide post one end and is located guide post high pressure subassembly. Damping buffering can be realized.
Further technical scheme, guide post high pressure assembly sets up on the tailboard.
In a further technical scheme, the diameter of the connecting guide column is 150-1000 mm.
According to a further technical scheme, the tail plate is provided with a thimble assembly; the thimble assembly comprises a thimble power piece fixed on the tail plate, the power output end of the thimble power piece is fixedly connected with a thimble plate, the thimble plate is connected with a plurality of thimble plates, and the thimble passes through the tail plate.
To sum up, the utility model discloses can reach following technological effect, can provide great installation space for injection mold, can make fixed head board or tailboard atress more even. The fixed head plate is in a transverse state when in use and is relatively stable. Damping buffering can be realized.
Drawings
FIG. 1 shows first to fourth embodiments; FIGS. 2 to 5 illustrate a first embodiment; FIGS. 6 to 7 show a second embodiment; fig. 8 to 12 show a third embodiment; fig. 13 to 19 show a fourth embodiment.
FIG. 1 is a perspective view showing first to fourth embodiments in order from left to right; it is emphasized that the first to fourth embodiments are shown in fig. 1 at the same time, merely for convenience of identification of the first to fourth embodiments, and do not limit the relative proportions therebetween; for example, the scaling of the first embodiment is 1, and the scaling of the fourth embodiment may be 1, or may be 0.5 or other scaling; the second and third embodiments are also similar and will not be described herein.
Fig. 2 is a schematic perspective view of a mold clamping structure of the injection molding machine of the first embodiment.
Fig. 3 is a perspective view schematically showing another view angle of the mold clamping structure of the injection molding machine of the first embodiment.
Fig. 4 is a schematic view of the stationary headboard 1 of the mold clamping structure of the injection molding machine of the first embodiment viewed toward the tailgate 2.
Fig. 5 is a schematic view of the tail plate 2 of the mold clamping structure of the injection molding machine of the first embodiment, viewed toward the head plate 1; LINE one LINE1 represents a horizontal reference LINE.
Fig. 6 is a schematic perspective view of a mold clamping structure of an injection molding machine according to a second embodiment.
Fig. 7 is a perspective view schematically showing another view angle of the mold clamping structure of the injection molding machine according to the second embodiment.
Fig. 8 is a schematic perspective view of a mold clamping structure of an injection molding machine according to a third embodiment.
Fig. 9 is a perspective view schematically showing another view angle of the mold clamping structure of the injection molding machine according to the third embodiment.
Fig. 10 is a perspective view of the fixed head plate 1 and the two-plate high pressure oil cylinder 31 of the third embodiment.
Fig. 11 is a schematic plan view of a mold clamping structure of an injection molding machine according to a third embodiment.
FIG. 12 is a schematic representation of section one SEC 1; LINE one LINE1 represents a horizontal reference LINE; the LINE two LINE2 represents a reference rectangle formed by connecting the axial center LINEs of the outer four two-plate high-pressure oil cylinders 31 in sequence.
Fig. 13 is a schematic perspective view of a mold clamping structure of an injection molding machine according to a fourth embodiment.
Fig. 14 is a perspective view schematically showing another view angle of the mold clamping structure of the injection molding machine of the fourth embodiment.
Fig. 15 is a schematic view of the stationary headboard 1 of the mold clamping structure of the injection molding machine of the fourth embodiment viewed toward the tailgate 2.
Fig. 16 is a schematic view of the tail plate 2 of the mold clamping structure of the injection molding machine of the fourth embodiment viewed toward the fixed head plate 1.
Fig. 17 is a perspective view of the tailgate 2 and the two-plate high-pressure cylinder 31 of the fourth embodiment.
Fig. 18 is a schematic side view of a mold clamping structure of an injection molding machine of a fourth embodiment.
Fig. 19 is a schematic diagram of profile two SEC 2.
Section one SEC 1; section two SEC 2; LINE one LINE 1; LINE two LINE 2; a fixed head plate 1; an injection port 11; a bounding rectangle 12; a rectangular center 121; a bounding rectangle width 122; boundary rectangle length 123; a transverse centerline 124; a longitudinal centerline 125; a standing foot 19; a tail plate 2; a thimble assembly 29; a thimble 291; an ejector plate 292; a thimble power element 293; a second plate 3; a two-plate high-pressure oil cylinder 31; a two-plate high pressure plunger 311; a two-plate high pressure plunger cavity 312; a reset cylinder 32; the reset plunger 321; a bottom slide assembly 33; a runner 331; a slipper pad 332; a two-plate connecting member 333; a sliding surface 334; a driving member 4; connecting the guide post 5; guide post diameter 51; outer guide posts 52; by the inner guide post 53; an outer guide post connection line 54; a guide post high pressure assembly 58; a high pressure through cover 581; a high pressure end cap 582; a clasped section 59; a clamping component 9; a clamping block 91; clasping the power element 92.
Detailed Description
The following description will be made in conjunction with the accompanying drawings.
In a first embodiment, the mold clamping structure of the injection molding machine of the first embodiment is a two-plate injection molding machine mold clamping structure. The mold clamping structure of the two-plate injection molding machine of the embodiment is generally suitable for high mold clamping force of more than 8000 tons.
The mold locking structure of the two-plate injection molding machine comprises a tail plate 2, a driving piece 4, a connecting guide column 5 and a fixed head plate 1 provided with an injection port 11; the tail part of the connecting guide post 5 is a clamped section 59 and is provided with a clamping groove (not shown in the drawing). The tail plate 2 is connected with the fixed head plate 1 through a driving piece 4, so that the tail plate 2 can move towards the fixed head plate 1. For example, the driving member 4 is an air cylinder, and the power output ends of the driving member 4 and the driving member 4 are respectively connected with the tail plate 2 and the fixed head plate 1, so that the tail plate 2 is connected with the fixed head plate 1 through the driving member 4. The connecting guide post 5 is cylindrical. The axial direction and the radial direction are based on the connection guide post 5.
Before the injection mold is used, the tail plate 2 is moved until the distance between the tail plate 2 and the fixed head plate 1 is larger, then two parts of the injection mold (not shown in the attached drawing) are respectively fixed on the tail plate 2 and the fixed head plate 1, the tail plate 2 is moved until the distance between the tail plate 2 and the fixed head plate 1 is reduced, and after the two parts of the injection mold are jointed and sealed, plastic is injected into the injection mold from an injection port 11 of the fixed head plate 1 at high pressure to form a plastic workpiece. The tail plate 2 moves to separate the two parts of the injection mould and then the plastic workpiece can be taken out.
The tail plate 2 is provided with a clamping assembly 9, and the clamped sections 59 respectively penetrate through the clamping assembly 9. The clamping assembly 9 includes a clamping block 91 and a clamping power member 92, and the clamping block 91 is fixedly connected to a power output end of the clamping power member 92, so that the clamping block 91 has a power moving radially. For example, the holding and clamping power element 92 is a linear power element such as an air cylinder or a hydraulic cylinder, the power output end of the holding and clamping power element is fixedly connected with the holding and clamping block 91, and the holding and clamping block 91 is provided with a groove with a roughly semicircular section. The holding blocks 91 of the two holding components 9 move relatively and linearly in the radial direction, so that the guide posts 5 are connected in a supporting manner through the approximately semicircular grooves, and holding is realized. The whole section of the holding and clamping groove is a right triangle (not shown in the attached drawing) or a right trapezoid, and the hypotenuse of the right triangle or the right trapezoid is far away from the fixed head plate 1. During injection molding, the distance between the fixed head plate 1 and the tail plate 2 can be ensured to be unchanged or changed slightly, and the sealing performance of an injection mold is ensured.
As one of specific embodiments, tail plate 2 is provided with ejector pin assembly 29; the ejector pin assembly 29 includes an ejector pin power unit 293 fixed (fixing columns for fixing are not shown in the drawing) to the tail plate 2, a linear power unit such as an air cylinder or a hydraulic cylinder of the ejector pin power unit 293, a cross-shaped ejector pin plate 292 fixedly connected to a power output end of the ejector pin power unit 293, a plurality of ejector pin plates 292 connected to the ejector pin plate 292, and the ejector pins 291 penetrating through the tail plate 2. The thimble 291 is powered by the thimble power unit 293 to push against the plastic workpiece in the injection mold to release the plastic workpiece from the injection mold.
When viewed axially, the boundary of the fixed head plate 1 is a boundary rectangle 12, the center of the boundary rectangle 12 is a rectangle center 121, and a horizontal line and a vertical line passing through the rectangle center 121 are a transverse center line 124 and a longitudinal center line 125 respectively; the tailgate 2 is located within a bounding rectangle 12. The width and length of the bounding rectangle 12 are the bounding rectangle width 122 and the bounding rectangle length 123, respectively. Typically, the boundary of the tailgate 2 is rectangular and substantially coincides with the bounding rectangle 12.
The diameter of the connecting guide post 5 (i.e., guide post diameter 51) is within fifteen percent of the shorter side of the rectangular center 121 (i.e., bounding rectangle width 122). For example, the connecting guide post 5 has a diameter of 200mm, and the bounding rectangle has a width 122 with a shorter side of 2050 mm. As a specific embodiment, the diameter of the connecting guide column 5 is 150-1000 mm.
The connecting guide post 5 comprises an outer guide post 52 and an inner guide post 53; the outer guide posts 52 are located at the four corners of the bounding rectangle 12, and each inner guide post 53 is located near the center 121 of the rectangle relative to its corresponding outer guide post 52. The outer guide post 52 corresponding to each inner guide post 53 means that the rectangular center 121 is divided into four quadrants by taking the rectangular center 121 as the origin of coordinate axes, and the inner guide post 53 in one quadrant corresponds to the outer guide post 52 in the other quadrant.
The number of inner guide posts 53 is an integral multiple of four, and the inner guide posts 53 are arranged in mirror symmetry about both the transverse center line 124 and the longitudinal center line 125.
The connecting guide post 5 with large diameter does not need to be produced additionally, and the high clamping force of the mold locking can be realized by directly utilizing the existing connecting guide post 5, thereby being beneficial to reducing the cost.
In one embodiment, the inner guide posts 53 are located at the same level as the outer guide posts 52.
The injection mold can be provided with a larger installation space, and compared with a structure that one guide post replaces one outer guide post 52 and the corresponding inner guide post 53, the force of the inner guide post 53 on the fixed head plate 1 or the tail plate 2 is closer to the rectangular center 121, so that the force of the fixed head plate 1 or the tail plate 2 is more uniform.
In a specific embodiment, the width and length of the boundary rectangle 12 are the boundary rectangle width 122 and the boundary rectangle length 123, respectively, the boundary rectangle width 122 is smaller than the boundary rectangle length 123, and the standing leg 19 is fixedly arranged at the side of the boundary rectangle length 123 of the fixed head plate 1. The standing foot 19 is used for installation and fixation or placement on the ground when in use, and the fixed head plate 1 is in a horizontal state when in use and is relatively stable.
In one specific embodiment, the number of inner guide posts 53 is four.
In a specific embodiment, the fixed head plate 1 is provided with a guide post high-pressure assembly 58, and one end of the connecting guide post 5 is positioned in the guide post high-pressure assembly 58. The guide post high pressure assembly 58 includes a high pressure through cover 581 through which the guide post 5 is connected and a high pressure end cover 582 sealing the high pressure through cover 581. And hydraulic oil is arranged in the guide column high-pressure assembly 58, so that damping buffering can be realized.
In a second embodiment, the mold clamping structure of the injection molding machine of the second embodiment is a two-plate injection molding machine mold clamping structure.
The mold clamping structure of the two-plate injection molding machine of the second embodiment is different from the mold clamping structure of the two-plate injection molding machine of the first embodiment in that the guide post high-pressure assembly 58 is provided on the tail plate 2.
Third embodiment, the mold clamping structure of the injection molding machine of the third embodiment is a three-plate injection molding machine mold clamping structure. The clamping structure of the three-plate injection molding machine of this embodiment is generally suitable for higher clamping force (higher than that of the first embodiment).
The mold locking structure of the three-plate injection molding machine of the third embodiment further comprises a second plate 3 and a two-plate high-pressure oil cylinder 31, wherein the outer guide column 52 and the inner guide column 53 respectively penetrate through the second plate 3; the two-plate high-pressure oil cylinder 31 is respectively connected with the two plates 3 and the fixed head plate 1.
The two-plate high-pressure oil cylinder 31 takes the fixed head plate 1 as a base and provides thrust to push the two plates 3, the connecting guide column 5 does not need to bear the thrust of the two-plate high-pressure oil cylinder 31, and compared with the first embodiment and the second embodiment, the clamping force of the mold locking can be further improved only through smaller modification.
As a specific embodiment, the two-plate high-pressure oil cylinder 31 includes a two-plate high-pressure plunger 311 and a two-plate high-pressure plunger cavity 312; the two-plate high-pressure plunger cavity 312 is arranged in the fixed head plate 1, and the two-plate high-pressure plunger 311 is embedded in the two-plate high-pressure plunger cavity 312. The thrust output by the two-plate high-pressure plunger 311 can be equal, and the stress of the injection mold is uniform.
As one specific embodiment, the fixed head plate 1 is hollow so that the two-plate high-pressure plunger cavities 312 communicate, and the hollow structure of the fixed head plate 1 is similar to CN212266573U, and will not be described herein again. Because the fixed head plate 1 is fixed, the pipelines and the like for conveying hydraulic oil to the fixed head plate 1 are also fixed, auxiliary devices such as drag chains and the like are not needed, and the cost is reduced and the reliability is improved.
As a specific embodiment, the device further comprises a reset oil cylinder 32, and the two-plate high-pressure plunger 311 is respectively connected with the two plates 3 and the fixed head plate 1; the reset oil cylinder 32 provides pulling force, so that the two plates 3 and the fixed head plate 1 can be close to each other to reset.
In a specific embodiment, the two-plate high-pressure oil cylinder 31 is 2N and is arranged in a regular geometric manner, and N is an integer of 2 or more. For example, the two-plate high pressure plungers 311 are six and will be symmetrically disposed about both the lateral centerline 124 and the longitudinal centerline 125, with the center two-plate high pressure plungers 311 having their axes located on the longitudinal centerline 125. The central pressure can be supplemented to the injection mold, and the sealing performance of the injection mold is ensured.
In one specific embodiment, the rectangle formed by connecting the axial lines of the outer four two-plate high-pressure plungers 311 in sequence is a similar rectangle with the center 121 of the rectangle. The distribution of the interaction force between the fixed head plate 1 and the fixed second plate 3 can be relatively uniform.
In one specific embodiment, the two-plate high-pressure plungers 311 are located between the long sides of the similar rectangle, the horizontal LINE connecting the axis of the outer guide post 52 and the axis of the inner guide post 53 (see LINE1 in fig. 12). For example, the upper two-plate high-pressure plunger 311 is located between the upper long side of the similar rectangle, the horizontal line connecting the axis of the upper outer guide post 52 and the axis of the inner guide post 53. The injection mold can be uniformly stressed in the height direction.
In a fourth embodiment, the mold clamping structure of the injection molding machine of the fourth embodiment is a large-tonnage mold clamping structure of an injection molding machine. The mold locking structure of the large-tonnage injection molding machine of the embodiment is generally suitable for large-tonnage high mold locking clamping force (higher than the mold locking clamping force of the third embodiment, which may cause the overall weight to be heavier).
In the mold locking structure of the large-tonnage injection molding machine of the fourth embodiment, the thickness of the fixed head plate 1 and the thickness of the tail plate 2 are both more than thirty percent of the boundary rectangle 12.
The axial line of the outer guide post 52 and the rectangular center 121 are the outer guide post connecting line 54 when viewed axially, and the axial lines of the inner guide posts 53 are respectively located on the outer guide post connecting lines 54.
Although the injection mold can be installed only in a small area between the innermost four inner guide posts 53, and the installation space of the injection mold is limited, the strength of the second plate 3 and the head plate 1 can be ensured when the large-tonnage high-locking clamping force is applied; at the same time, the outer guide posts 52 and the inner guide posts 53 are displaced in the height direction, and the connecting guide posts 5 are secured so as not to be easily bent.
In one specific embodiment, the number of the inner guide posts 53 is four.
As a specific embodiment, the hydraulic cylinder further comprises a two-plate 3 and a two-plate high-pressure oil cylinder 31, wherein the outer guide column 52 and the inner guide column 53 respectively penetrate through the two plates 3; the two-plate high-pressure oil cylinder 31 is respectively connected with the two plates 3 and the tail plate 2.
As one of specific embodiments, a bottom slide assembly 33 is further included; the bottom slide assembly 33 includes a shoe 331 and a shoe pad 332; the bottom of the two boards 3 and the bottom of the tail board 2 are respectively fixedly connected with a sliding foot 331, the sliding foot 331 is placed on the sliding foot pad 332 so as to be capable of sliding linearly along the sliding foot pad 332, the contact surface between the sliding foot 331 and the sliding foot 331 is a sliding surface 334, and the sliding surface 334 is usually provided with a relatively smooth material such as a copper sheet. Before use, the shoe plate 332 is fixed to an injection molding machine. For example, the sliding foot 331 is fixedly provided with a two-plate connecting member 333, and the two-plate connecting member 333 is fixedly connected to the side surface of the bottom of the two plate 3. The dead weight tonnage of the tail plate 2 and the second plate 3 is large, and the diameter 51 of the guide post can be further ensured not to be bent through the bottom sliding assembly 33.
In a specific embodiment, there are two bottom sliding assemblies 33, two sides of the bottom of the two plates 3 and two sides of the bottom of the tail plate 2 are respectively fixedly connected to the two sliding legs 331, and both sliding surfaces 334 are inward inclined planes, in other words, one end of the sliding surface 334 away from the rectangular center 121 is higher, and one end of the rectangular center 121 close to the rectangular center 121 is lower. The mold locking structure of the large-tonnage injection molding machine depends on dead weight to lean against the middle, so that the injection molding precision can be ensured.
In a specific embodiment, the two-plate high-pressure oil cylinder 31 is 2N and is arranged in a regular geometric manner, and N is an integer of 2 or more. For example, the number of the two-plate high-pressure oil cylinders 31 is four, and the sequential connection line of the four two-plate high-pressure oil cylinders 31 is a square when viewed axially.
In one specific embodiment, the connecting guide post 5 has a diameter of 210mm and the bounding rectangle width 122 has a shorter side of 1850 mm.
Claims (7)
1. The mold locking structure of the two-plate injection molding machine comprises a tail plate (2), a driving piece (4), a connecting guide column (5) and a fixed head plate (1) provided with an injection molding opening (11); the tail part of the connecting guide post (5) is a clamped section (59) and is provided with a clamping groove; the tail plate (2) is provided with a clamping component (9), and clamped sections (59) respectively penetrate through the clamping component (9); it is characterized in that the utility model is characterized in that,
when viewed axially, the boundary of the fixed head plate (1) is a boundary rectangle (12), the center of the boundary rectangle (12) is a rectangle center (121), and a horizontal line and a vertical line passing through the rectangle center (121) are respectively a transverse center line (124) and a longitudinal center line (125); the tail plate (2) is positioned in the boundary rectangle (12); the diameter of the connecting guide column (5) is less than fifteen percent of the shorter side of the rectangular center (121); the connecting guide post (5) comprises an outer guide post (52) and an inner guide post (53); the outer guide posts (52) are positioned at four corners of the boundary rectangle (12), and each inner guide post (53) is close to the center (121) of the rectangle relative to the corresponding outer guide post (52); the number of the inner guide posts (53) is integral multiple of four, and the inner guide posts (53) are arranged in mirror symmetry with respect to the transverse center line (124) and the longitudinal center line (125);
the inner guide post (53) is located at the same level as the outer guide post (52).
2. The mold locking structure of a two-plate injection molding machine according to claim 1, wherein the width and length of the boundary rectangle (12) are respectively the boundary rectangle width (122) and the boundary rectangle length (123), the boundary rectangle width (122) is smaller than the boundary rectangle length (123), and the standing leg (19) is fixedly arranged at the side of the boundary rectangle length (123) of the fixed head plate (1).
3. A mold clamping structure for a two-plate injection molding machine according to claim 1, wherein the number of inner guide posts (53) is four.
4. The mold locking structure of a two-plate injection molding machine according to claim 1, wherein the fixed head plate (1) is provided with a guide post high-pressure assembly (58), and one end of the connecting guide post (5) is positioned in the guide post high-pressure assembly (58).
5. The mold clamping structure of a two-plate injection molding machine according to claim 1, wherein the guide post high-pressure assembly (58) is provided on the tail plate (2).
6. The mold clamping structure of a two-plate injection molding machine according to claim 1, wherein the diameter of the connecting guide post (5) is 150-1000 mm.
7. The mold locking structure of a two-plate injection molding machine according to claim 1, wherein the tail plate (2) is provided with a thimble assembly (29); the ejector pin assembly (29) comprises ejector pin power parts (293) fixed on the tail plate (2), the power output ends of the ejector pin power parts (293) are fixedly connected with ejector pin plates (292), the ejector pin plates (292) are connected with a plurality of ejector pin plates (292), and the ejector pins (291) penetrate through the tail plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202220922997.6U CN217144779U (en) | 2022-04-20 | 2022-04-20 | Mold locking structure of two-plate injection molding machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220922997.6U CN217144779U (en) | 2022-04-20 | 2022-04-20 | Mold locking structure of two-plate injection molding machine |
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| CN217144779U true CN217144779U (en) | 2022-08-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114683501A (en) * | 2022-04-20 | 2022-07-01 | 广东顺德必盛达机械有限公司 | Mold locking structure of injection molding machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114683501A (en) * | 2022-04-20 | 2022-07-01 | 广东顺德必盛达机械有限公司 | Mold locking structure of injection molding machine |
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