A mold quick change device

Abstract

The application discloses a mold quick-changing device, which comprises first and second limiting mechanisms arranged at the left and right ends of a shell respectively; the first limiting mechanism comprises a rotating shaft arranged through the left end of the shell and capable of rotating around the front-back direction, a first pressing plate connected to the rotating shaft at the left end, a long hole arranged in the first pressing plate, a limiting shaft movably arranged in the long hole, and an elastic member arranged in the long hole and used for elastically connecting the limiting shaft; the limiting shaft is arranged along the front-back direction; the first limiting mechanism further comprises a limiting groove arranged on the shell and used for being inserted by the limiting shaft, and the limiting groove comprises first and second sub-grooves which are interconnected and mutually angled; when the first pressing plate is in a limiting state, the limiting shaft is located in the first sub-groove, and the right end of the first pressing plate is used for capping the left end of the mold along the front-back direction; when the first pressing plate is in an unlocking state, the limiting shaft is located in the second sub-groove, and the right end of the first pressing plate is rotated away from the mold. The mold quick-changing device has relatively high changing efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bottle blowing machine, in particular to a mold quick changing device. BACKGROUND

[0002] With the continuous development of beverage industry, the requirement for the mold changing time of bottle blowing machine is higher and higher. When the same bottle blowing machine blows different bottle types, the corresponding mold needs to be changed. The existing mold changing of bottle blowing machine needs to be realized by other tools, and the mold changing time is relatively long, which greatly affects the working efficiency of the bottle blowing machine. SUMMARY

[0003] The purpose of the present application is to provide a mold quick changing device, which can realize the quick changing of the mold without the help of other tools, and the changing efficiency is relatively high.

[0004] To achieve the above purpose, the technical scheme adopted by the present application is:

[0005] A mold quick changing device for locking a mold in a shell, the mold and the shell are connected through the circular arc groove and the circular arc flange corresponding to each other, the mold can rotate relative to the shell along the circumference of the shell, the mold quick changing device comprises a first limiting mechanism and a second limiting mechanism respectively arranged at the left and right ends of the shell and used for limiting the left and right ends of the mold corresponding to each other;

[0006] The first limiting mechanism comprises a rotating shaft rotatable around the front and back directions and penetrating through the left end of the shell, a first pressing plate connected to the rear end of the rotating shaft, a long hole opened in the first pressing plate, a limiting shaft movably arranged in the first pressing plate along the length direction of the long hole, and an elastic member arranged in the long hole and used for elastically connecting the limiting shaft;

[0007] The limiting shaft is arranged along the front and back directions, the front end of the limiting shaft extends out of the first pressing plate, the first limiting mechanism further comprises a limiting groove opened in the shell and used for being inserted by the front end of the limiting shaft, the limiting groove comprises a first sub-groove and a second sub-groove which are communicated with each other and form an angle;

[0008] The first pressing plate has a limiting state and an unlocking state:

[0009] When the first pressing plate is in the limiting state, the limiting shaft is located in the first sub-groove, the elastic member is used for providing an elastic restoring force to drive the limiting shaft to abut against the first sub-groove away from the second sub-groove, and the right end of the first pressing plate is used for covering the left end of the mold along the front and back directions;

[0010] When the first pressing plate is in the unlocking state, the limiting shaft is located in the second sub-groove, and the right end of the first pressing plate rotates away from the mold around the axis of the rotating shaft.

[0011] Preferably, the elastic stretching direction of the elastic member is parallel to the long hole and perpendicular to the direction in which the first pressing plate presses against the mold.

[0012] Preferably, when the first pressing plate is in the limiting state, the long hole is parallel to the first sub-groove.

[0013] Preferably, the second sub-groove is an arc-shaped groove, and the center of the arc-shaped groove is located on the axis of the rotating shaft.

[0014] Preferably, the limiting shaft comprises a shaft body penetrating the long hole, a first connecting portion provided on the side of the shaft body for connecting one end of the elastic member, and a second connecting portion provided in the long hole for connecting the other end of the elastic member.

[0015] More preferably, the limiting shaft further comprises a ring-shaped protrusion protruding from the shaft body, the long hole is provided with an abutting portion for abutting the rear end face of the ring-shaped protrusion, the front end face of the ring-shaped protrusion is used for abutting the housing, and the outer diameter of the ring-shaped protrusion is greater than the groove width of the limiting groove.

[0016] More preferably, the elastic member is a compression spring, and the compression spring and the rotating shaft are respectively provided on the two different sides of the limiting shaft.

[0017] More preferably, the elastic member is a tension spring, and the tension spring and the rotating shaft are provided on the same side of the limiting shaft.

[0018] Preferably, the first limiting mechanism is provided in multiple numbers and arranged in sequence and at intervals on the left end of the housing along the length direction of the housing.

[0019] Preferably, the second limiting mechanism comprises a second pressing plate for covering the right end of the mold in the front-rear direction and a fixing member for mounting the second pressing plate on the housing.

[0020] Thanks to the use of the above technical scheme, the mold quick-changing device of the present application has the following advantages compared with the prior art: the mold quick-changing device of the present application can realize the limiting and unlocking of the left end of the mold by switching the position of the limiting shaft in the limiting groove through the long hole provided on the first pressing plate and the elastic connection of the limiting shaft by the elastic member, and the mold can be quickly replaced without the aid of other tools, the replacement efficiency is relatively high, and the working efficiency of the bottle blowing machine can be relatively high. BRIEF DESCRIPTION OF DRAWINGS

[0021] ATTACHMENT Figure 1Structure diagram of the mold quick-change device according to an embodiment of the present application Figure 1 (in which the first pressing plate is in the limiting state);

[0022] Figure 2 is a structure diagram of the mold quick-change device according to an embodiment of the present application Figure 2 (in which the first pressing plate is in the limiting state); Figure 2 (in which the first pressing plate is in the unlocking state);

[0023] Figure 3 is a structure diagram of the mold quick-change device according to an embodiment of the present application Figure 3 (in which the first pressing plate is in the unlocking state); Figure 1 Figure 4 is a structure diagram of the middle shell according to an embodiment of the present application

[0024] Figure 5 is a structure diagram of the first pressing plate according to an embodiment of the present application Figure 4 (in which the first pressing plate is in the limiting state);

[0025] (in which the first pressing plate is in the unlocking state); Figure 5 Figure 6 is a structure diagram of the first pressing plate according to an embodiment of the present application

[0026] (in which the first pressing plate is in the unlocking state); Figure 6 Figure 7 is a structure diagram of the limiting shaft according to an embodiment of the present application

[0027] 1, mold; 11, circular-arc groove; 12, limiting groove;

[0028] 2, shell; 21, circular-arc flange;

[0029] 3, first limiting mechanism; 31, rotating shaft; 32, first pressing plate; 33, long hole; 34, limiting shaft; 341, shaft body; 342, first connecting part; 343, annular protrusion; 35, elastic member; 36, limiting groove; 361, first sub-groove; 362, second sub-groove; 37, second connecting part; 38, bearing; 39, through hole; 310, abutting part; 311, locking member;

[0030] 4, second limiting mechanism; 41, second pressing plate; 42, fixing member. DETAILED DESCRIPTION

[0031] The technical solutions of the present application will be further described below in combination with specific embodiments and the drawings.

[0032] In the following, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0033] In the description of the present embodiments, it should be understood that the terms "length", "inner", and the like indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present embodiments and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present embodiments.

[0034] In addition, the terms "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present embodiments, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0035] In the present embodiments, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present embodiments can be understood according to the specific circumstances.

[0036] In the present embodiments, unless otherwise explicitly specified and limited, "on" or "under" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" of the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0037] The following disclosure provides many different embodiments or examples for implementing different structures of the present embodiments. In order to simplify the disclosure of the present embodiments, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present embodiments. In addition, the present embodiments can repeatedly refer to numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and in itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0038] The front, rear, left and right directions mentioned below refer to Figure 4, Figure 4 Front, back, left and right in the above correspond to front, back, left and right below respectively, Figure 4 Vertical direction of the paper in the above correspond to up and down direction below.

[0039] Referring to Figures 1-3 The embodiment provides a mold quick-change device for locking a mold 1 in a shell 2, the mold 1 and the shell 2 are connected by cooperating with a circular-arc groove 11 and a circular-arc flange 21 arranged on the mold 1 and the shell 2 one by one, and the mold 1 can rotate along the circumference of the shell 2. Specifically, the shell 2 and the mold 1 are both semi-circular-arc-shaped vertical columns, the upper inner side (i.e. the back side) of the shell 2 is provided with the circular-arc flange 21, and the upper outer side (i.e. the front side) of the mold 1 is provided with the circular-arc groove 11, the circular-arc flange 21 can be clamped into the circular-arc groove 11 in a cooperative manner, and the mold 1 can rotate along the circumference of the shell 2 through the connection between the mold 1 and the shell 2 to realize the relative assembly and disassembly of the mold 1 and the shell 2.

[0040] Referring to Figures 1-4 The mold quick-change device comprises a first limiting mechanism 3 and a second limiting mechanism 4 arranged at the left and right ends of the shell 2 respectively and used for limiting the left and right ends of the mold 1 one by one, and the two sides of the mold 1 are correspondingly provided with limiting grooves 12 for being clamped by the first limiting mechanism 3 and the second limiting mechanism 4.

[0041] The first limiting mechanism 3 comprises a rotating shaft 31 rotatably arranged at the left end of the shell 2 and extending out of the shell 2 at the back end, a first pressing plate 32 connected to the back end of the rotating shaft 31 at the left end, a long hole 33 arranged in the first pressing plate 32, a limiting shaft 34 movably arranged in the first pressing plate 32 along the length extension direction of the long hole 33, and an elastic member 35 arranged in the long hole 33 and used for elastically connecting the limiting shaft 34. In the process of rotating the left end of the first pressing plate 32 around the axis of the rotating shaft 31, the right end of the first pressing plate 32 can pass through the shell 2 and block the back side of the left end of the mold 1, and the direction in which the first pressing plate 32 blocks the mold 1 is the front-back direction. In the embodiment, the elastic extension direction of the elastic member 35 and the length extension direction of the long hole 33 are parallel to each other and are arranged along the left-right direction respectively.

[0042] In the embodiment, the rotating shaft 31 and the limiting shaft 34 are parallel to each other and are arranged along the front-back direction respectively, and the limiting shaft 34 is arranged at the right side of the rotating shaft 31; the shell 2 is further provided with a bearing 38 for being penetrated by the rotating shaft 31.

[0043] Referring to Figures 3-4As shown, the front end of the limiting shaft 34 extends out of the first pressing plate 32, and the first limiting mechanism 3 further comprises a limiting slot 36 formed on the shell 2 and used for being extended into by the front end of the limiting shaft 34, the limiting slot 36 comprises a first sub-slot 361 and a second sub-slot 362 which are communicated with each other and form an angle. In the embodiment, the first sub-slot 361 is arranged along the left-right direction, and the second sub-slot 362 is an arc-shaped slot, the center of the arc-shaped slot is located on the axis line of the rotating shaft 31; the first sub-slot 361 is communicated with the upper end of the arc-shaped slot through the right end thereof.

[0044] Based on the above structure, the first pressing plate 32 has a limiting state and an unlocking state:

[0045] When the first pressing plate 32 is in the limiting state, the limiting shaft 34 is located in the first sub-slot 361, and the elastic member 35 is used for providing an elastic restoring force for driving the limiting shaft 34 to abut against the left end of the first sub-slot 361, since the limiting shaft 34 is abutted against the left end of the first sub-slot 361, the first pressing plate 32 cannot be driven to rotate around the axis line of the rotating shaft 31, at this time, the right end of the first pressing plate 32 is used for covering the left end of the mold 1 along the front-rear direction, thus the limiting action on the mold 1 can be realized.

[0046] In order to avoid the first pressing plate 32 from shaking when it is in the limiting state and improve the limiting effect on the mold 1, the outer diameter of the limiting shaft 34 is equal to or slightly smaller than the width of the long hole 33.

[0047] When the first pressing plate 32 is in the unlocking state, the limiting shaft 34 is located in the second sub-slot 362, in the process of rotating the limiting shaft 34 around the second sub-slot 362 from the upper right to the lower left, the right end of the first pressing plate 32 rotates around the axis line of the rotating shaft 31 and moves away from the mold 1.

[0048] In the embodiment, the rear end of the limiting shaft 34 also extends out of the long hole 33, when it is needed to switch the first pressing plate 32 from the limiting state to the unlocking state, only the rear end of the limiting shaft 34 needs to be driven, so that the limiting shaft 34 overcomes the elastic restoring force of the elastic member 35 and moves from the left end of the first sub-slot 361 to the right end of the first sub-slot 361, and then enters the second sub-slot 362 and moves downward.

[0049] Referring to Figure 5 As shown, the left end of the first pressing plate 32 is provided with a through hole 39 for being penetrated by the rotating shaft 31, and the long hole 33 is arranged on the right side of the through hole 39, and the left end of the pressing plate is locked on the rotating shaft 31 through the locking member 311.

[0050] Referring to Figure 6 As shown, the limiting shaft 34 comprises a shaft body 341 penetrating the long hole 33, a first connecting portion 342 arranged on the side of the shaft body 341 and used for connecting one end of the elastic member 35, and a second connecting portion 37 arranged in the long hole 33 and used for connecting the other end of the elastic member 35.

[0051] In the embodiment, the elastic member 35 is a compression spring, the compression spring and the rotating shaft 31 are arranged on the opposite sides of the limiting shaft 34, and the second connecting part 37 is arranged on the right side of the first connecting part 342.

[0052] In another embodiment, the elastic member 35 is a tension spring, the tension spring and the rotating shaft 31 are arranged on the same side of the limiting shaft 34, and the second connecting part 37 is arranged on the left side of the first connecting part 342.

[0053] Referring to Figures 5-6 As shown, the limiting shaft 34 further comprises an annular protrusion 343 protruding from the shaft body 341, and the long hole 33 is provided with an abutting part 310 for abutting the rear end face of the annular protrusion 343, and the front end face of the annular protrusion 343 is used for abutting the shell 2. In order to avoid the relative movement between the limiting shaft 34 and the shell 2 in the front-rear direction, the outer diameter of the annular protrusion 343 is greater than the slot width of the limiting slot 36.

[0054] In order to ensure that the first pressing plate 32 can tightly abut the mold 1 in the limiting state, a certain gap is respectively left between the front side of the left end of the first pressing plate 32 and the rear side of the shell 2, and between the front end face of the annular protrusion 343 and the rear side of the shell 2, and the two gaps are respectively compensated by two groups of gaskets, so as to further ensure the limiting effect on the mold 1.

[0055] Referring to Figure 4 As shown, in the embodiment, the front end part of the rotating shaft 31 is located in the shell 2, and has a larger diameter; the rear end part of the rotating shaft 31 is located outside the shell 2, and has a smaller diameter. The rear end face of the front end part of the rotating shaft 31 is flush with the rear side of the shell 2, and one of the above-mentioned groups of gaskets is arranged between the rear end face of the front end part of the rotating shaft 31 and the front side of the left end of the first pressing plate 32.

[0056] Referring to Figures 1-2 As shown, the first limiting mechanism 3 is provided in plurality, and in the embodiment, two first limiting mechanisms 3 are arranged at the left end of the shell 2 in sequence and at intervals along the length extension direction of the shell 2 (i.e. the up-down direction). By arranging multiple first limiting mechanisms 3, the limiting effect on the mold 1 can be ensured.

[0057] Referring to Figures 1-2 As shown, the second limiting mechanism 4 comprises a second pressing plate 41 for covering the right end of the mold 1 in the front-rear direction, and a fixing member 42 for mounting the second pressing plate 41 on the shell 2. The second pressing plate 41 is generally not removed, and is only used for limiting the right end of the mold 1. When the mold 1 needs to be replaced, only the first pressing plates 32 in the multiple first limiting mechanisms 3 on the left side need to be adjusted to the unlocked state.

[0058] The working process of the embodiment will be specifically described below:

[0059] When the mold 1 needs to be replaced, the limiting shaft 34 is driven to move right along the first sub-slot 361, at this time the elastic member 35 is compressed and stored energy; when the limiting shaft 34 moves to the right end of the first sub-slot 361, the limiting shaft 34 and the first pressing plate 32 are further rotated downward around the axis of the rotating shaft 31, at this time the limiting shaft 34 rotates downward in the second sub-slot 362, until the right end of the first pressing plate 32 is away from the left end of the mold 1. Then the mold 1 is rotated left along the circumference of the shell 2, and then it can be taken out and replaced;

[0060] After the replacement is completed, the limiting shaft 34 is driven to rotate upward along the second sub-slot 362, when the limiting shaft 34 rotates to the top end of the second sub-slot 362, under the action of the elastic restoring force of the elastic member 35, the limiting shaft 34 is driven to the left end of the first sub-slot 361, and the limiting of the mold 1 is realized through the first pressing plate 32.

[0061] The above embodiments are only for illustrating the technical concept and characteristics of the present application, the purpose is to enable the person skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application, any equivalent changes or modifications made according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A quick-change mold device for locking a mold in a housing, wherein the mold and the housing are connected by corresponding arcuate grooves and arcuate flanges, and the mold is rotatable relative to the housing in its circumferential direction, characterized in that: The quick-change mold device includes a first limiting mechanism and a second limiting mechanism respectively disposed at the left and right ends of the housing and used to limit the left and right ends of the mold one by one. The first limiting mechanism includes a rotating shaft that is rotatable in the front-back direction and passes through the left end of the housing and extends out of the housing at its rear end; a first pressure plate whose left end is connected to the rear end of the rotating shaft; an elongated hole in the first pressure plate; a limiting shaft that is movably disposed in the first pressure plate along the length extension direction of the elongated hole; and an elastic element disposed in the elongated hole and used to elastically connect the limiting shaft. The limiting shaft is arranged in the front-rear direction, and the front end of the limiting shaft extends out of the first pressure plate. The first limiting mechanism also includes a limiting groove formed on the housing and used by the front end of the limiting shaft to extend into it. The limiting groove includes a first sub-groove and a second sub-groove that are interconnected and at an angle to each other. The first pressure plate has a limited state and an unlocked state: When the first pressure plate is in the limited position, the limiting shaft is located in the first slot, the elastic element is used to provide an elastic restoring force to drive the limiting shaft to press against the end of the first slot away from the second slot, and the right end of the first pressure plate is used to cover the left end of the mold in the front-back direction; When the first pressure plate is in the unlocked state, the limiting shaft is located in the second slot, and the right end of the first pressure plate rotates away from the mold around the axis of the rotating shaft.

2. The quick-change mold device according to claim 1, characterized in that: The elastic extension and contraction direction of the elastic element is parallel to the elongated hole and perpendicular to the direction in which the first pressure plate presses against the mold.

3. The quick-change mold device according to claim 1, characterized in that: When the first pressure plate is in the limited position, the elongated hole is parallel to the first slot.

4. The quick-change mold device according to claim 1, characterized in that: The second groove is an arc-shaped groove, and the center of the arc-shaped groove is located on the axis of the rotating shaft.

5. The quick-change mold device according to claim 1, characterized in that: The limiting shaft includes a shaft body passing through the elongated hole, a first connecting part located on the side of the shaft body for connecting one end of the elastic element, and a second connecting part located in the elongated hole for connecting the other end of the elastic element.

6. The quick-change mold device according to claim 5, characterized in that: The limiting shaft also includes an annular protrusion protruding from the shaft body. The elongated hole is provided with an abutting part for abutting the rear end face of the annular protrusion. The front end face of the annular protrusion is used to abut the housing. The outer diameter of the annular protrusion is larger than the groove width of the limiting groove.

7. The quick-change mold device according to claim 5, characterized in that: The elastic element is a compression spring, and the compression spring and the rotating shaft are respectively located on opposite sides of the limiting shaft.

8. The quick-change mold device according to claim 5, characterized in that: The elastic element is a tension spring, and the tension spring and the rotating shaft are located on the same side of the limiting shaft.

9. The quick-change mold device according to claim 1, characterized in that: There are multiple first limiting mechanisms, which are arranged sequentially and at intervals along the length extension direction of the housing at the left end of the housing.

10. The quick-change mold device according to claim 1, characterized in that: The second limiting mechanism includes a second pressure plate for sealing the right end of the mold in the front-rear direction and a fixing member for mounting the second pressure plate on the housing.

Images