A mold quick change device
By designing the arc-shaped inner sleeve and side mold, and combining the pressure rod and slot in the quick-change mechanism, the wear and shaking problems of the molding die during the mold change process are solved, realizing quick change and efficient production, and improving the service life of the mold and the quality of blow molding.
Patent Information
- Application Number
- CN202410147016.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2044-02-02
AI Technical Summary
Existing molding dies experience wear and vibration during mold changing, affecting their service life and blow molding quality.
The design adopts an arc-shaped middle sleeve and side mold. Through the cooperation of the pressure rod and the slot in the quick-change mechanism, the pressing surface and the guide surface at an angle provide a large clamping force to stabilize the side mold in the middle sleeve. Combined with the rotation drive of the limit block, quick replacement is achieved.
It shortens mold changeover time, improves mold lifespan and blow molding quality, avoids wear, and ensures equipment stability and efficient production.
Smart Images
Figure CN118061444B_ABST
Abstract
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] In the process of bottle blowing, different bottle types need to use different forming molds, and the existing forming molds are generally fixed on the mold carrier by screws. The low efficiency of mold changing will affect the production capacity.
[0003] In view of this problem, in the prior art, a slot is formed in the side of the forming mold, and a rotary cylinder is used to drive a limiting block to rotate into the slot to limit it. When the forming mold is replaced, the rotary cylinder drives the limiting block to rotate out of the slot. The disadvantage of this structure is that although the limiting block has a certain resistance to the wall of the slot, the resistance that can be generated is small. During the bottle blowing process, there is still a gap and shaking between the forming mold and the mold carrier, which will cause wear and affect the service life. At the same time, it will also affect the quality of bottle blowing. SUMMARY
[0004] The purpose of the present application is to provide a mold quick changing device which not only shortens the mold changing time, but also tightly presses the side mold in the middle sleeve through a larger resistance, thereby ensuring the quality of bottle blowing and the service life of the device.
[0005] To achieve the above purpose, the technical scheme adopted by the present application is:
[0006] A mold quick changing device, comprising a circular arc-shaped middle sleeve, a side mold detachably annularly abutting on the inner side of the middle sleeve, the middle sleeve being provided with a pressing plate at one end along the circumference thereof for limiting a corresponding first end portion of the side mold along the circumference thereof, the mold quick changing device further comprising a quick changing mechanism provided at the other end along the circumference of the middle sleeve;
[0007] The side mold is provided with a clamping groove at a second end portion along the circumference thereof, the clamping groove comprising a clamping surface parallel to the axial direction of the side mold, the quick changing mechanism comprising a pressing rod telescopically provided on the middle sleeve along a first direction, a driving assembly provided on the middle sleeve and used for driving the pressing rod to extend into and out of the clamping groove, one side of the pressing rod towards the clamping surface comprising a pressing surface and a guide surface arranged in sequence along the first direction, the guide surface being provided between the pressing surface and the driving assembly;
[0008] The pressing surface is parallel to the clamping surface, the guide surface is parallel to the first direction and forms an angle with the clamping surface, and the pressing surface is used for tightly pressing the side mold on the middle sleeve and the pressing plate when the pressing rod extends into the clamping groove;
[0009] When the pressing rod as a whole exits the clamping groove, the second end portion of the side mold is in a free state.
[0010] Preferably, the driving assembly comprises a support arranged on the middle sleeve, a first connecting rod having one end rotatably connected to the pressing rod through a first hinge point, and a second connecting rod having one end rotatably connected to the support through a second hinge point, the other end of the first connecting rod and the other end of the second connecting rod being rotatably connected through a third hinge point.
[0011] More preferably, the second hinge point is located on the extension line of the pressing rod along the first direction, and the first connecting rod and the second connecting rod have an included angle a when the pressing rod has the maximum extension length, wherein 160°≤a≤180°.
[0012] More preferably, the support is provided with a guide groove arranged along the first direction, and the pressing rod is slidably arranged in the guide groove.
[0013] Further more preferably, the length of the guide surface along the first direction is less than or equal to the length of the guide groove along the first direction.
[0014] More preferably, the driving assembly further comprises a driving rod having one end rotatably connected to the support through the second hinge point, and the driving rod is fixedly connected to the second connecting rod.
[0015] Preferably, the guide surface and the clamping surface have an included angle β, wherein 0°<β<90°.
[0016] Preferably, when the pressing rod partially extends into the clamping groove, the pressing rod is directed from the outer side of the circumference of the side mold to the inner side of the circumference of the side mold.
[0017] Preferably, the middle sleeve and the side mold are clamped to each other through a positioning groove and a positioning flange perpendicular to the axial direction of the side mold.
[0018] Preferably, the clamping groove is concavely arranged on the outer side of the circumference of the side mold.
[0019] Due 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 is provided with a push rod having a clamping surface and a guide surface at the side facing the clamping groove, wherein the clamping surface is used to abut the clamping surface in cooperation, and the guide surface abuts the side mold in the middle sleeve through the clamping surface while guiding, and since the guide surface and the clamping surface are at an angle to each other, the push rod can give a larger abutting force to the side mold while being limited, so as to abut the side mold in the middle sleeve, thereby reducing the mold changing time, and ensuring the bottle blowing quality and the service life of the device. BRIEF DESCRIPTION OF DRAWINGS
[0020] ATTACHED Figure 1 It is a structural schematic view of the mold quick changing device according to the embodiment of the present application.
[0021] Figure 1 is a schematic view of the quick-change mechanism of the present application. Figure 2 Figure 1 Figure 2 is a sectional view along the line AA (the pressing rod enters the clamping groove) of the quick-change mechanism of the present application.
[0022] Figure 3 is a schematic view of the quick-change mechanism of the present application. Figure 3 Figure 2 Figure 4 is an enlarged schematic view at B of the quick-change mechanism of the present application.
[0023] Figure 5 is a schematic view of the quick-change mechanism of the present application. Figure 4 Figure 1 Figure 6 is a sectional view along the line AA (the pressing rod exits the clamping groove) of the quick-change mechanism of the present application.
[0024] Figure 7 is a schematic view of the quick-change mechanism of the present application. Figure 5 Figure 4 Figure 8 is an enlarged schematic view at C of the quick-change mechanism of the present application.
[0025] Figure 9 is a schematic view of the quick-change mechanism of the present application. Figure 6 Figure 1 Figure 10 is a structural schematic view of the quick-change mechanism of the present application.
[0026] Wherein: 1, middle sleeve; 2, side mold; 21, first end; 22, second end; 23, clamping groove; 231, clamping surface; 3, pressing plate;
[0027] 4, quick-change mechanism; 41, pressing rod; 411, pressing surface; 412, guide surface; 42, bracket; 421, guide groove; 43, first hinge point; 44, first connecting rod; 45, second hinge point; 46, second connecting rod; 47, third hinge point; 48, driving rod. DETAILED DESCRIPTION
[0028] The technical solutions of the present application will be further described below in combination with specific embodiments and the drawings.
[0029] 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.
[0030] In the description of the embodiments of the present application, it is to be understood that the terms "length", "inner", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.
[0031] In addition, the terms "first", "second", etc. are used herein only to describe different instances, and do not imply or suggest relative importance or a 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 embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.
[0032] In the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected, or can be communicated; can be directly connected, or can be indirectly connected through an intermediate medium; 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 embodiments of the present application can be understood according to the specific circumstances.
[0033] In the embodiments of the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to 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 "below", "under" and "under" of the first feature to 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.
[0034] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present application. In order to simplify the disclosure of the embodiments of the present application, the components and arrangements of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present application. In addition, the reference numerals and / or reference letters can be repeated in different examples of the embodiments of the present application, and such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or arrangements discussed.
[0035] Reference is made to Figures 1-2As shown in FIGS. 1-4, the present embodiment provides a mold quick-change device, which comprises a circular-arc-shaped middle sleeve 1, a side mold 2 detachably annularly abutting the inner circumferential portion of the middle sleeve 1, and a pressing plate 3 provided at one end of the middle sleeve 1 along the circumferential direction thereof and used for limiting a first end portion 21 of the side mold 2 along the circumferential direction thereof. The mold quick-change device further comprises a quick-change mechanism 4 provided at the other end of the middle sleeve 1 along the circumferential direction thereof and used for limiting or releasing the limitation of a second end portion 22 of the side mold 2 along the circumferential direction thereof. The middle sleeve 1 and the side mold 2 are mutually clamped through a positioning groove and a positioning flange perpendicular to the axial direction of the side mold 2, wherein one of the positioning groove and the positioning flange is provided at the inner circumferential portion of the middle sleeve 1, and the other is provided at the outer circumferential portion of the side mold 2.
[0036] Referring to FIGS. 1-4, Figure 2 4 As shown in FIGS. 1-4, the present embodiment provides a mold quick-change device, which comprises a circular-arc-shaped middle sleeve 1, a side mold 2 detachably annularly abutting the inner circumferential portion of the middle sleeve 1, and a pressing plate 3 provided at one end of the middle sleeve 1 along the circumferential direction thereof and used for limiting a first end portion 21 of the side mold 2 along the circumferential direction thereof. The mold quick-change device further comprises a quick-change mechanism 4 provided at the other end of the middle sleeve 1 along the circumferential direction thereof and used for limiting or releasing the limitation of a second end portion 22 of the side mold 2 along the circumferential direction thereof. The middle sleeve 1 and the side mold 2 are mutually clamped through a positioning groove and a positioning flange perpendicular to the axial direction of the side mold 2, wherein one of the positioning groove and the positioning flange is provided at the inner circumferential portion of the middle sleeve 1, and the other is provided at the outer circumferential portion of the side mold 2.
[0037] Referring to FIGS. 1-4, Figure 3 5 As shown in FIGS. 1-4, the present embodiment provides a mold quick-change device, which comprises a circular-arc-shaped middle sleeve 1, a side mold 2 detachably annularly abutting the inner circumferential portion of the middle sleeve 1, and a pressing plate 3 provided at one end of the middle sleeve 1 along the circumferential direction thereof and used for limiting a first end portion 21 of the side mold 2 along the circumferential direction thereof. The mold quick-change device further comprises a quick-change mechanism 4 provided at the other end of the middle sleeve 1 along the circumferential direction thereof and used for limiting or releasing the limitation of a second end portion 22 of the side mold 2 along the circumferential direction thereof. The middle sleeve 1 and the side mold 2 are mutually clamped through a positioning groove and a positioning flange perpendicular to the axial direction of the side mold 2, wherein one of the positioning groove and the positioning flange is provided at the inner circumferential portion of the middle sleeve 1, and the other is provided at the outer circumferential portion of the side mold 2.
[0038] In the embodiment, the pressing surface 411 is parallel to the clamping surface 231, and the guide surface 412 is parallel to the first direction and forms an angle with the clamping surface 231. The pressing surface 411 is used to press the edge mold 2 against the middle sleeve 1 and the pressing plate 3 when the pressing rod 41 extends into the clamping groove 23. By arranging the side of the pushing rod facing the clamping groove 23 with the mutually-angled pressing surface 411 and guide surface 412, the pressing surface 411 is used to fit against the clamping surface 231, and the guide surface 412 presses the edge mold 2 against the middle sleeve 1 through the pressing surface 411. Since the guide surface 412 and the clamping surface 231 form an angle, the pushing rod can give the edge mold 2 a larger pressing force while being limited, so as to press the edge mold 2 against the middle sleeve 1. At the same time, since the edge mold 2 and the middle sleeve 1 are both arc-shaped, the inward pressing force of the second end portion 22 of the edge mold 2 makes the edge mold 2 have a tendency to slide out of the middle sleeve 1 along the first end portion 21 side, and thus the pressing force can also press the edge mold 2 against the pressing plate 3. By this arrangement, the wear between the forming mold and the mold carrier due to the gap and shaking during the bottle blowing process can be avoided, and the service life is prolonged. At the same time, the bottle blowing quality is also ensured.
[0039] Referring to Figure 5 As shown in FIG. 6, when the left end portion of the pressing rod 41 exits the clamping groove 23 to the right, the second end portion 22 of the edge mold 2 is in a free state, and at this time, the edge mold 2 can be replaced.
[0040] Referring to Figure 3 As shown in FIG. 5, when the left end portion of the pressing rod 41 extends into the clamping groove 23, the pressing rod 41 points from the outer side of the circumference of the edge mold 2 to the inner side of the circumference, that is, the pressing surface 411 and the clamping surface 231 also have this orientation.
[0041] Referring to Figure 3 As shown in FIG. 4, the above-mentioned guide surface 412 and the clamping surface 231 form an included angle β, where 0°<β<90°, and in the embodiment, β is 10°.
[0042] Referring to Figure 3 , 5 As shown in FIG. 6, the above-mentioned driving assembly includes a bracket 42 arranged on the middle sleeve 1, a first connecting rod 44 having one end rotatably connected to the pressing rod 41 through a first hinge point 43, and a second connecting rod 46 having one end rotatably connected to the bracket 42 through a second hinge point 45. The other end of the first connecting rod 44 and the other end of the second connecting rod 46 are rotatably connected through a third hinge point 47. By this arrangement, when the second connecting rod 46 rotates, the first connecting rod 44 can drive the pressing rod 41 to perform the extension and retraction movement.
[0043] In the embodiment, the second hinge point 45 is located on the extension line of the pressing rod 41 in the first direction, and the first connecting rod 44 and the second connecting rod 46 have an included angle a when the left extension length of the pressing rod 41 is the largest, wherein 160°≤a≤180°, so as to complete the locking of the side mold 2 by self-locking. Referring to Figure 3 As shown, it is obvious that the first connecting rod 44 and the second connecting rod 46 can be bent upward or downward when self-locked. In the embodiment, a is 180°.
[0044] The bracket 42 is provided with a guide groove 421 arranged in the first direction, and the pressing rod 41 is slidably arranged in the guide groove 421. In the embodiment, the length of the guide surface 412 in the first direction is less than or equal to the length of the guide groove 421 in the first direction. Through this arrangement, when the left extension length of the pressing rod 41 in the guide groove 421 is the largest, the guide surface 412 is still located in the guide groove 421 as a whole, which can avoid the extension of the guide surface 421 out of the guide groove 421 and the interference with the second end 22 of the side mold 2.
[0045] In the embodiment, the driving assembly further comprises a driving rod 48 rotatably connected to the bracket 42 at one end through the second hinge point 45, the driving rod 48 is fixedly connected with the second connecting rod 46, and the driving rod 48 and the second connecting rod 46 have an included angle. By rotating the driving rod 48, the push rod is driven to extend into or out of the clamping groove 23.
[0046] The working process of the embodiment will be specifically described below:
[0047] When the side mold 2 needs to be replaced, the driving rod 48 is counterclockwise rotated to make the left end of the push rod exit the clamping groove 23, so that the side mold 2 can be quickly replaced;
[0048] After the replacement is completed, the driving rod is clockwise rotated to make the left end of the push rod extend into the clamping groove 23 until the pressing surface 411 and the clamping surface 231 are attached and abutted.
[0049] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those 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 shall be covered within the protection scope of the present application.
Claims
1. A mold quick-change device, comprising a circular-arc-shaped middle sleeve and a side mold detachably sleeved on the inner side of the middle sleeve, wherein the middle sleeve is provided with a pressing plate at one end in the circumferential direction of the middle sleeve, and the pressing plate is used to limit the corresponding first end of the side mold in the circumferential direction of the side mold. The mold quick-change device further comprises a quick-change mechanism arranged at the other end of the middle sleeve along the circumference thereof; The second end of the side mold is provided with a clamping groove along the circumference thereof, the clamping groove comprises a clamping surface parallel to the axial direction of the side mold, the quick-change mechanism comprises a pressing rod telescopically arranged on the middle sleeve along a first direction, a driving assembly arranged on the middle sleeve and used for driving the pressing rod to extend into or out of the clamping groove, and a side of the pressing rod facing the clamping surface comprises a pressing surface and a guide surface arranged along the first direction in sequence, the guide surface is arranged between the pressing surface and the driving assembly; The pressing surface is parallel to the clamping surface, the guide surface is parallel to the first direction and forms an angle with the clamping surface, and the pressing surface is used for abutting the side mold against the middle sleeve and the pressing plate when the pressing rod extends into the clamping groove; When the pressing rod entirely exits the clamping groove, the second end of the side mold is in a free state; The driving assembly comprises a bracket arranged on the middle sleeve, a first connecting rod rotatably connected to the pressing rod at a first hinge point, and a second connecting rod rotatably connected to the bracket at a second hinge point, and the other end of the first connecting rod and the other end of the second connecting rod are rotatably connected through a third hinge point; The guide surface and the clamping surface form an angle β therebetween, wherein 0°<β<90°.
2. The mold quick change device of claim 1, wherein: The second hinge point is located on the extension line of the pressing rod along the first direction, and when the extension length of the pressing rod is maximum, the first connecting rod and the second connecting rod form an angle α therebetween, wherein 160°≤α≤180°.
3. The mold quick change device of claim 1, wherein: The bracket is provided with a guide groove arranged along the first direction, and the pressing rod is slidably arranged in the guide groove.
4. The mold quick change device of claim 3, wherein: The length of the guide surface along the first direction is less than or equal to the length of the guide groove along the first direction.
5. The mold quick change device of claim 1, wherein: The driving assembly further comprises a driving rod rotatably connected to the bracket at the second hinge point, and the driving rod is fixedly connected to the second connecting rod.
6. The mold quick change device of claim 1, wherein: When the pressing rod partially extends into the clamping groove, the pressing rod is directed from the outer side of the circumference of the side mold to the inner side of the circumference thereof.
7. The mold quick change device of claim 1, wherein: The middle sleeve and the side mold are clamped to each other through a positioning groove and a positioning flange perpendicular to the axial direction of the side mold.
8. The mold quick change device of claim 1, wherein: The clamping groove is concavely arranged on the outer circumferential portion of the side mold.
Citation Information
Patent Citations
Die locking device capable of quickly replacing bottle blowing machine die
CN110406077A
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