Movable half mold and blank injection mold

Abstract

The movable half mold comprises a top plate assembly, the top plate assembly comprises a top plate, a sliding plate set is arranged on the top plate, and the sliding plate set comprises a first sliding plate and a second sliding plate which extend in the first direction; the first sliding plate and the second sliding plate are connected with a first active sliding block and a second active sliding block respectively, the top plate is provided with a linear rail extending in the second direction, and the first active sliding block and the second active sliding block are configured to slide along the linear rail. The first sliding plate and the second sliding plate are driven by the first active sliding block and the second active sliding block to move in a face-to-face or back-to-back mode in the second direction; according to the invention, only the size for mounting the linear track needs to be reserved in the hollowed area of the top plate, the size of the hollowed area of the top plate can be reduced, the weakening degree of rigidity and strength of the top plate is reduced, and the top plate still has enough rigidity and strength after being processed to form the hollowed area.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, and in particular relates to a movable half mold and an injection mold. Background Art

[0002] Generally, during the manufacturing process of plastic bottles, it is necessary to first form the intermediate product of the preform by injection molding, and then form the finished plastic bottle by blow molding. The preform is formed by injecting the raw material into the mold cavity of the injection mold under specific temperature and pressure under the working conditions of the injection molding machine. In order to improve the production efficiency of the preform, multiple mold cavities are set in the injection mold so that the injection mold can process multiple preforms at one time. The opening and closing of the injection mold mainly depends on the top plate assembly. The existing top plate assembly is as follows Figure 1 As shown, it includes a top plate a, a slide group is provided on the top plate a, and a sliding bar b is provided at the bottom of the slide group for driving the slide group to open and close the mold. The slide group includes at least a pair of relatively arranged slides c, so there are at least two sliding bars b. A hollow area is provided on the top plate a, and the sliding bar b is installed in the hollow area. In order to limit the sliding bar b to slide within the hollow area, a T-shaped bar d is also provided in the hollow area, and the two sliding bars b are distributed on both sides of the T-shaped bar d. Through the limiting effect of the T-shaped bar d, the sliding bar b is kept in the hollow area to ensure the normal opening and closing of the injection mold; based on the above-mentioned installation structure of the sliding bar b and the T-shaped bar d, the hollow area of ​​the top plate a needs to reserve at least the size of the two sliding bars b and the T-shaped bar d for installing the mold. The hollow area of ​​the top plate a is large, resulting in the weakening of the rigidity and strength of the top plate a, which cannot meet the design requirements of the injection mold. Therefore, it is necessary to increase the thickness of the top plate a so that the rigidity and strength of the top plate a meet the requirements, which will undoubtedly increase the production cost and use cost of the injection mold and affect the promotion and application of the injection mold. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a movable half mold and an injection mold.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A movable half-mold includes a top plate assembly, the top plate assembly includes a top plate, a slide group is arranged on the top plate, the slide group includes a first slide and a second slide, both extending along a first direction; the first slide and the second slide are respectively connected to a first active slider and a second active slider, a linear track extending along a second direction is provided on the top plate, the first active slider and the second active slider are configured to slide along the linear track, and the first slide and the second slide move toward or away from each other along the second direction under the drive of the first active slider and the second active slider.

[0006] In the utility model, the linear rail is linear guide rail, the first active slider and the second active slider are slidably installed on the linear guide rail.

[0007] In the utility model, the linear recess is arranged on the left and right sides of the top plate along the first direction, and the linear guide rail is arranged in the linear recess on the left and right sides; the first active slider and the second active slider are slidably arranged in the linear guide rail of the linear recess on the left side, and the first active slider and the second active slider are slidably arranged in the linear guide rail of the linear recess on the right side.

[0008] In the utility model, when a plurality of slide plate groups are arranged on the top plate along the second direction, a water distribution bar group is arranged on the plurality of slide plate groups, the water distribution bar group comprises a first water distribution bar and a second water distribution bar extending along the second direction, the first slide plate of the plurality of slide plate groups is connected to the first water distribution bar, and the second slide plate of the plurality of slide plate groups is connected to the second water distribution bar.

[0009] The first slide plate is connected through a first linkage bar, at least one first slide plate is provided with the first active slider, the second slide plate is connected through a second linkage bar, and at least one second slide plate is provided with the second active slider; or, the first slide plate is provided with the first active slider, and the second slide plate is provided with the second active slider.

[0010] In the utility model, the first water distribution bar on the left side has a first water inlet flow path, the second water distribution bar on the left side has a second water inlet flow path, the first slide plate has a first slide plate cooling flow path, the second slide plate has a second slide plate cooling flow path, the first water distribution bar on the right side has a first water outlet flow path, the second water distribution bar on the right side has a second water outlet flow path, the first water inlet flow path and the first water outlet flow path are connected with the first slide plate cooling flow path of the first slide plate, and the second water inlet flow path and the second water outlet flow path are connected with the second slide plate cooling flow path of the second slide plate.

[0011] In the utility model, the movable half mold further comprises a mold core plate assembly, the mold core plate assembly comprises a mold core plate, the top plate assembly slides along a third direction on the mold core plate, the first active slider and the second active slider move along the linear guide rail towards or away from each other, and drive the first slide plate and the second slide plate to slide along the second direction towards or away from each other.

[0012] In the utility model, a plurality of mold core assemblies are arranged on the mold core plate, a plurality of first half mold lips are arranged on the first slide plate along the first direction, a plurality of second half mold lips are arranged on the second slide plate along the first direction, the plurality of mold core assemblies, the plurality of first half mold lips and the plurality of second half mold lips are one-to-one corresponding, when the first slide plate and the second slide plate slide towards each other or away from each other along the second direction, the first half mold lips and the second half mold lips are driven to move towards each other or away from each other, gradually close to or away from the corresponding mold core assemblies, to close or open the mold.

[0013] In the utility model, the driving source of the first active slide block and the second active slide block is a linear motor or a linear motor.

[0014] Based on the movable half mold provided above, the utility model also provides a blank injection mold, which comprises a movable half mold and a fixed half mold, the movable half mold and the fixed half mold are configured to define a plurality of bottle blank forming cavities, a slide plate group of the movable half mold is fixedly installed with a mold lip, the movable half mold is the movable half mold above, and the mold lip is correspondingly closed or opened by the moving of the first slide plate and the second slide plate of the slide plate group towards each other or away from each other.

[0015] The utility model has the advantages that: the first active slide block and the second active slide block are connected to the bottom of the first slide plate and the second slide plate respectively, the first slide plate and the second slide plate slide in the linear track based on the first active slide block and the second active slide block to realize opening and closing movement; the size of the hollow area of the top plate only needs to reserve the size of the linear track, the size of the hollow area of the top plate can be reduced, the degree of weakening of the rigidity and strength of the top plate is reduced, the rigidity and strength of the top plate after the hollow area is formed are ensured; even if the rigidity and strength of the top plate meet the requirements, the thickness of the top plate can be appropriately reduced, the overall thickness size of the mold is reduced, and the effect of reducing production cost and use cost is achieved. ACCURACY OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the prior art movable half mold;

[0017] Figure 2 It is a perspective view of the movable half mold of the embodiment;

[0018] Figure 3 It is a perspective view of the top plate assembly in one view direction of the embodiment;

[0019] Figure 4 It is a perspective view of the top plate assembly in another view direction of the embodiment;

[0020] Figure 5 It is a top view of the top plate assembly of the embodiment;

[0021] Figure 6Structure diagram of the slider and linear guide rail mounted on the top plate in the embodiment of the present application. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0023] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0024] In addition, if the embodiments of the present application involve descriptions of "first" or "second" and the like, the descriptions of "first" or "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is also not within the protection scope required by the present application.

[0025] As Figures 2 to 6As shown, the embodiment discloses a movable half mold, which comprises a top plate assembly, the top plate assembly comprises a top plate 1, a slide plate group 2 is arranged on the top plate 1, the slide plate group 2 comprises a first slide plate 21 and a second slide plate 22 arranged oppositely, and the first slide plate 21 and the second slide plate 22 both extend along a first direction; the bottom of the first slide plate 21 and the second slide plate 22 is respectively connected with a first active slide block 3 and a second active slide block 4, the first active slide block 3 and the second active slide block 4 refer to a slide block with a power source for self-driving; the top plate 1 is provided with a linear rail, the first active slide block 3 and the second active slide block 4 are configured to slide along the linear rail, and the first active slide block 3 and the second active slide block 4 can be directly or indirectly mounted on the linear guide rail; the linear rail is a linear guide rail 5, the linear guide rail 5 extends along a second direction, and the second direction is perpendicular to the first direction; the first active slide block 3 and the second active slide block 4 are both slidingly arranged in the linear guide rail 5. The first slide plate 21 and the second slide plate 22 realize opening and closing movement based on the sliding of the first active slide block 3 and the second active slide block 4 in the linear guide rail 5. The top plate 1 is provided with linear grooves on the left and right sides along the first direction, and the linear guide rails 5 are mounted in the linear grooves on the left and right sides; the first slide plate 21 is connected with the first active slide block 3 on the left and right sides along the first direction, the second slide plate 22 is connected with the second active slide block 4 on the left and right sides along the first direction, the first active slide block 3 and the second active slide block 4 on the left side are both slidingly arranged in the linear guide rail 5 of the linear groove on the left side, and the first active slide block 3 and the second active slide block 4 on the right side are both slidingly arranged in the linear guide rail 5 of the linear groove on the right side. In this embodiment, the hollowed-out area of the top plate 1 only needs to reserve the size of the linear guide rail 5, which can reduce the size of the hollowed-out area of the top plate 1, reduce the degree of weakening of the stiffness and strength of the top plate 1, and ensure that the top plate 1 still has sufficient stiffness and strength after the hollowed-out area is formed. Even in the case that the stiffness and strength of the top plate 1 meet the requirements, the thickness of the top plate 1 can be appropriately reduced, so that the overall thickness size of the mold is reduced, and the effect of reducing the production cost and use cost is achieved.

[0026] In the embodiment, when a plurality of slide plate groups 2 are arranged on the top plate 1 in sequence along the second direction, a plurality of water distribution bar assemblies 10 are arranged on the plurality of slide plate groups 2, each water distribution bar assembly 10 comprises a first water distribution bar 101 and a second water distribution bar 102 arranged side by side and extending along the second direction, a plurality of first slide plates 21 of the plurality of slide plate groups 2 are connected to the first water distribution bar 101, and a plurality of second slide plates 22 of the plurality of slide plate groups 2 are connected to the second water distribution bar 102. The first water distribution bar 101 and the second water distribution bar 102 play the roles of water distribution and linkage. The water distribution role refers to that the first slide plates 21 and the second slide plates 22 arranged oppositely are respectively moved under the connection of the first water distribution bar 101 and the second water distribution bar 102 to realize separation and closing. The linkage role refers to that the plurality of first slide plates 21 of the plurality of slide plate groups 2 are connected by the first water distribution bar 101 to realize linkage, and the plurality of second slide plates 22 of the plurality of slide plate groups 2 are connected by the second water distribution bar 102 to realize linkage. Preferably, the water distribution bar assemblies 10 are arranged on both sides of the plurality of slide plate groups 2 along the first direction, so that the plurality of slide plate groups 2 slide more balanced and stably.

[0027] When a plurality of slide plate groups 2 are arranged on the top plate 1 in sequence along the second direction, a first active sliding block 3 can be arranged at the bottom of each first slide plate 21 in the plurality of slide plate groups 2, and a second active sliding block 4 can be arranged at the bottom of each second slide plate 22 in the plurality of slide plate groups 2, so as to respectively control the plurality of first slide plates 21 and the plurality of second slide plates 22 to slide towards or away from each other. At this time, the water distribution bar assemblies 10 are not required to be arranged.

[0028] A first active sliding block 3 can also be arranged at the bottom of one of the first slide plates 21 in the plurality of slide plate groups 2, and a second active sliding block 4 can be arranged at the bottom of one of the second slide plates 22 in the plurality of slide plate groups 2. The water distribution bar assemblies 10 are arranged on the plurality of slide plate groups 2, each water distribution bar assembly 10 comprises a first water distribution bar 101 and a second water distribution bar 102 arranged side by side and extending along the second direction, a plurality of first slide plates 21 of the plurality of slide plate groups 2 are connected to the first water distribution bar 101, and a plurality of second slide plates 22 of the plurality of slide plate groups 2 are connected to the second water distribution bar 102. When the first active sliding block 3 slides in the linear guide rail 5, it drives the first slide plate 21 connected thereto to slide, and under the action of the first water distribution bar 101, all the first slide plates 21 are driven to link. Similarly, when the second active sliding block 4 slides in the linear guide rail 5, it drives the second slide plate 22 connected thereto to slide, and under the action of the second water distribution bar 102, all the second slide plates 22 are driven to link.

[0029] As a preferred embodiment, the top plate 1 is provided with linear guide rails 5 on both sides along the first direction, a plurality of first sliding plates 21 are connected with first active sliding blocks 3 on both sides of the bottom along the first direction, and a plurality of second active sliding blocks 4 are connected with second active sliding blocks 4 on both sides of the bottom along the first direction; correspondingly, the first active sliding blocks 3 on both sides of the bottom of the first sliding plate 21 are respectively arranged in the linear guide rails 5 on both sides of the top plate 1, and the second active sliding blocks 4 on both sides of the bottom of the second sliding plate 22 are respectively arranged in the linear guide rails 5 on both sides of the top plate 1, so that the sliding of the plurality of sliding plate groups 2 is more balanced and stable.

[0030] A plurality of water distribution bar groups 10 are arranged on the left and right sides along the first direction of the plurality of sliding plate groups 2, the water distribution bar group 10 on the left side includes a left first water distribution bar 103 and a left second water distribution bar 104 both extending along the second direction, and the water distribution bar group 10 on the right side includes a right first water distribution bar 105 and a right second water distribution bar 106 both extending along the second direction, the left side of the plurality of first sliding plates 21 is connected to the left first water distribution bar 103, the right side of the plurality of first sliding plates 21 is connected to the right first water distribution bar 105, the left side of the plurality of second sliding plates 22 is connected to the left second water distribution bar 104, and the right side of the plurality of second sliding plates 22 is connected to the right second water distribution bar 106.

[0031] The left first water distribution bar 103 has a first water inlet flow path 107 inside, the left second water distribution bar 104 has a second water inlet flow path 108 inside, the plurality of first sliding plates 21 each have a first sliding plate cooling flow path 211 inside, the plurality of second sliding plates 22 each have a second sliding plate cooling flow path 221 inside, the right first water distribution bar 105 has a first water outlet flow path 109 inside, and the right second water distribution bar 106 has a second water outlet flow path 110 inside, the first water inlet flow path 107 and the first water outlet flow path 109 are respectively connected to the plurality of first sliding plate cooling flow paths 211 of the plurality of first sliding plates 21, and the second water inlet flow path 108 and the second water outlet flow path 110 are respectively connected to the plurality of second sliding plate cooling flow paths 221 of the plurality of second sliding plates 22.

[0032] In the embodiment, the first water distribution bar 101 and the second water distribution bar 102 play the roles of water distribution and linkage, and in other embodiments, the first water distribution bar 101 and the second water distribution bar 102 only have the role of water distribution, and the linkage role is realized by independent first linkage bars and second linkage bars.

[0033] In the utility model, the movable half mold further comprises a mold core plate assembly, the mold core plate assembly comprises a mold core plate 8, the top plate assembly slides on the mold core plate 8 along a third direction, the first active sliding block 3 and the second active sliding block 4 move towards or away from along the linear track, drive the first sliding plate 21 and the second sliding plate 22 to slide towards or away from along a second direction. A plurality of mold core assemblies are arranged on the mold core plate 8, a plurality of first half mold lips 6 are arranged on the first sliding plate 21 along a first direction, a plurality of second half mold lips 7 are arranged on the second sliding plate 22 along the first direction, the plurality of mold core assemblies, the plurality of first half mold lips 6 and the plurality of second half mold lips 7 correspond one by one, when the first sliding plate 21 and the second sliding plate 22 slide towards or away from along the second direction, drive the first half mold lip 6 and the second half mold lip 7 to move towards or away from, gradually approach or move away from the corresponding mold core assembly, to close or open the mold.

[0034] In the utility model, the driving source of the first active sliding block 3 and the second active sliding block 4 is a linear motor or a linear motor. The sliding plate group 2 can realize the opening and closing mode different from the conventional mode, such as realizing the odd column and even column alternating opening and closing, on the one hand, can be suitable for producing different types of products, improves the applicability of the mold, on the other hand, can reduce the spacing between the sliding plate group 2, makes the overall size of the mold be reduced, reaches the effect of reducing production cost and use cost.

[0035] Based on the above disclosed movable half mold, the embodiment further discloses a injection mold, which comprises a movable half mold and a fixed half mold, the movable half mold and the fixed half mold are configured to define a plurality of bottle blank forming cavities, the sliding plate group 2 of the movable half mold is fixedly installed with a mold lip, the movable half mold is the above movable half mold, and the mold lip is correspondingly closed and opened by the towards and away movement of the first sliding plate 21 and the second sliding plate 22 of the sliding plate group 2.

[0036] The above only describes the preferred embodiments of the utility model, and any technical scheme achieving the same purpose by basically the same means falls within the protection scope of the utility model.

Claims

1. A movable half mold, characterized in that: The invention comprises a top plate assembly, wherein the top plate assembly comprises a top plate, a slide group is arranged on the top plate, the slide group comprises a first slide and a second slide, both extending along a first direction; the first slide and the second slide are respectively connected to a first active slider and a second active slider, a linear track extending along a second direction is provided on the top plate, the first active slider and the second active slider are configured to slide along the linear track, and the first slide and the second slide move toward or away from each other along the second direction under the drive of the first active slider and the second active slider.

2. The movable half mold according to claim 1, characterized in that: The linear track is a linear guide rail, and the first active slider and the second active slider are slidably mounted on the linear guide rail.

3. The movable half mold according to claim 2, characterized in that: The top plate is provided with linear grooves on the left and right sides along the first direction, and the linear guide rails are installed in the linear grooves on the left and right sides; the first slide plate is connected to the first active slider on the left and right sides along the first direction, and the second slide plate is connected to the second active slider on the left and right sides along the first direction, respectively. The first active slider and the second active slider on the left side are both slidably set in the linear guide rail of the linear groove on the left side, and the first active slider and the second active slider on the right side are both slidably set in the linear guide rail of the linear groove on the right side.

4. The movable half mold according to claim 3, characterized in that: When multiple groups of the slide plates are arranged on the top plate along the second direction, a water dividing bar group is arranged on the multiple groups of the slide plates, and the water dividing bar group includes a first water dividing bar and a second water dividing bar both extending along the second direction. Multiple first slide plates of the multiple groups of the slide plates are connected to the first water dividing bar, and multiple second slide plates of the multiple groups of the slide plates are connected to the second water dividing bar.

5. The movable half mold according to claim 4, characterized in that: The first slides are connected via a first linkage bar, and at least one of the first slides is configured with the first active slider; the second slides are connected via a second linkage bar, and at least one of the second slides is configured with the second active slider; or, both of the first slides are configured with the first active slider, and both of the second slides are configured with the second active slider.

6. The movable half mold according to claim 4, characterized in that: The first water diversion strip on the left has a first water inlet flow path inside, the second water diversion strip on the left has a second water inlet flow path inside, multiple first skateboards all have first skateboard cooling flow paths inside, multiple second skateboards all have second skateboard cooling flow paths inside, the first water diversion strip on the right has a first water outlet flow path inside, the second water diversion strip on the right has a second water outlet flow path inside, the first water inlet flow path and the first water outlet flow path are respectively connected to multiple first skateboard cooling flow paths of multiple first skateboards, and the second water inlet flow path and the second water outlet flow path are respectively connected to multiple second skateboard cooling flow paths of multiple second skateboards.

7. The movable half mold according to claim 1, characterized in that: The movable half mold also includes a core plate assembly, the core plate assembly includes a core plate, the top plate assembly slides along the third direction on the core plate, the first active slider and the second active slider move toward or away from each other along the linear track, driving the first slide plate and the second slide plate to slide toward or away from each other along the second direction.

8. The movable half mold according to claim 7, characterized in that: A plurality of core assemblies are provided on the core plate, a plurality of first half-mold lips are arranged along the first direction on the first slide, and a plurality of second half-mold lips are arranged along the first direction on the second slide. The plurality of core assemblies, the plurality of first half-mold lips and the plurality of second half-mold lips correspond to each other one by one. When the first slide and the second slide slide toward or away from each other along the second direction, the first half-mold lips and the second half-mold lips are driven to move toward or away from each other, gradually approaching or moving away from the corresponding core assemblies to close or open the mold.

9. The movable half mold according to claim 1, characterized in that: The driving sources of the first active slider and the second active slider are linear motors or straight line motors.

10. An injection mold comprising a movable mold half and a fixed mold half, wherein the movable mold half and the fixed mold half are configured to define a plurality of preform molding cavities, and a slide assembly of the movable mold half is fixedly mounted on a mold lip, characterized in that: The movable half mold is the movable half mold according to any one of claims 1 to 9, and the die lip is closed and opened accordingly by the first slide plate and the second slide plate of the slide plate group moving toward and away from each other.

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