Die quick-changing structure in bottle blowing machine

Abstract

The utility model discloses a mold quick-changing structure in a bottle blowing machine. The mold quick-changing structure comprises a first limiting mechanism and a second limiting mechanism which are respectively arranged at the left end and the right end of a shell, the first limiting mechanism comprises a connecting plate arranged at the left end of the shell and provided with a through hole formed in the front-back direction, a rotating shaft coaxially arranged in the through hole in a penetrating mode, and a limiting piece arranged at the front end of the rotating shaft, wherein the front end and the rear end of the rotating shaft stretch out of the through hole correspondingly. The two ends of the elastic piece are arranged between the limiting piece and the front end face of the connecting plate in an abutting mode in the elastic telescopic direction of the elastic piece, the first pressing plate is arranged at the rear end of the rotating shaft, the rotating shaft can be arranged in the through hole in the mode of rotating around the axis of the rotating shaft, and the elastic piece is used for providing elastic restoring force for pressing the first pressing plate on the rear end face of the connecting plate. When the first pressing plate is located at the limiting position, the end, away from the rotating shaft, of the first pressing plate covers the left end of the mold in the front-back direction; when the first pressing plate is in the unlocking position, one end of the first pressing plate away from the rotating shaft is away from the mold. The die quick-changing structure is high in changing efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle blowing, in particular to a mold quick-changing structure in a bottle blowing machine. Background Art

[0002] With the continuous development of the beverage industry, the requirements for the mold replacement time of bottle blowing machines are getting higher and higher. When the same bottle blowing machine blows different bottle shapes, the corresponding mold needs to be replaced.

[0003] In the prior art, the mold is generally installed on the shell by means of a screw-locking pressure plate structure. Each time a set of molds is replaced, multiple screws need to be loosened and tightened. The mold replacement time is long, which greatly affects the working efficiency of the bottle blowing machine. Utility Model Content

[0004] The purpose of the utility model is to provide a mold quick-change structure in a bottle blowing machine, which can quickly realize the replacement of the mold and has a relatively high replacement efficiency.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A mold quick-change structure in a bottle blowing machine is used to lock the mold in a housing. The mold and the housing are connected by a circular arc groove and a circular arc flange provided thereon in a one-to-one correspondence. The mold can rotate relative to the housing along the circumference thereof. The mold quick-change structure includes a first limiting mechanism and a second limiting mechanism respectively provided at the left and right ends of the housing and used to limit the left and right ends of the mold in a one-to-one correspondence.

[0007] The first limiting mechanism includes a connecting plate provided at the left end of the housing and having a through hole opened in the front-to-back direction, a rotating shaft coaxially inserted into the through hole and with its front and rear ends respectively extending out of the through hole, a limiting member provided at the front end of the rotating shaft, an elastic member with its two ends respectively abutting between the limiting member and the front end surface of the connecting plate in its own elastic expansion and contraction direction, and a first pressing plate provided at the rear end of the rotating shaft, the rotating shaft being rotatably provided in the through hole around its own axis, the elastic member being used to provide an elastic restoring force to press the first pressing plate against the rear end surface of the connecting plate;

[0008] The first pressing plate has a limit position and an unlocking position, and the first pressing plate is used to switch between the limit position and the unlocking position by rotating with the rotating shaft.

[0009] When the first pressing plate is in the limiting position, the end of the first pressing plate away from the rotating shaft is used to cover the left end of the mold along the front-to-back direction;

[0010] When the first pressing plate is switched from the limiting position to the unlocking position, the end of the first pressing plate away from the rotating shaft rotates away from the mold.

[0011] Preferably, the limiting member is a retaining spring protruding from the front end of the rotating shaft.

[0012] Preferably, the elastic member is a butterfly spring sleeved on the rotating shaft.

[0013] Preferably, the rear end surface of the first pressing plate close to one end of the rotating shaft is recessed forward to form an operating hole for being clamped by a wrench.

[0014] Preferably, the connecting plate is provided with a limiting protrusion for limiting the first pressing plate after it is switched from the unlocking position to the limiting position.

[0015] More preferably, the limiting protrusion is provided on the rear end surface of the connecting plate and is located on the rotation path of the first pressure plate.

[0016] Preferably, when the first pressing plate is switched from the limiting position to the unlocking position, the angle through which the first pressing plate rotates along with the rotating shaft is α, where α≥90°.

[0017] Preferably, there are a plurality of the first limiting mechanisms, which are arranged in sequence and spaced apart along the longitudinal extension direction of the shell at the left end of the shell.

[0018] Preferably, the second limiting mechanism includes a second pressing plate for covering the right end of the mold along the front-rear direction, and a fixing member for mounting the second pressing plate on the housing.

[0019] Due to the application of the above technical solution, the present invention has the following advantages over the prior art: the mold quick-change structure in the bottle blowing machine of the present invention is provided with a connecting plate having a through hole at the left end of the housing, and a rotating shaft rotatable about the axis of the through hole is provided therein. The rotation of the rotating shaft can control the first pressure plate connected thereto to quickly switch between a limit position and an unlocked position. When replacing the mold, there is no need to remove the screws. The mold can be quickly replaced by simply rotating the first pressure plate. The replacement efficiency is relatively high, thereby ensuring relatively high operating efficiency of the bottle blowing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Attachment Figure 1 The structure diagram of the mold quick change structure according to the specific embodiment of the utility model is as follows Figure 1 ;

[0021] Attachment Figure 2 For attachment Figure 1 Schematic diagram of the cross-section structure;

[0022] Attachment Figure 3 For attachment Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0023] Attachment Figure 4 For attachment Figure 1 Schematic diagram of the enlarged structure at B in the middle;

[0024] Attachment Figure 5 The structure diagram of the mold quick change structure according to the specific embodiment of the utility model is as follows Figure 2 ;

[0025] Attachment Figure 6 For attachment Figure 5 Schematic diagram of the cross-section structure;

[0026] Attachment Figure 7 For attachment Figure 6 Schematic diagram of the enlarged structure at point C in the middle.

[0027] Wherein: 1. mold; 11. arc groove; 12. limiting groove;

[0028] 2. Shell; 21. Arc flange;

[0029] 3. First limiting mechanism; 31. Connecting plate; 32. Through hole; 33. Rotating shaft; 34. Limiting member; 35. Elastic member; 36. First pressing plate; 37. Operating hole; 38. Limiting protrusion;

[0030] 4. Second limiting mechanism; 41. Second pressing plate; 42. Fixing member. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0032] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0033] In the description of the embodiments of the present invention, it should be understood that the terms "length", "inside", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0035] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0036] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] The disclosure below provides many different embodiments or examples for implementing different structures of the embodiments of the present invention. In order to simplify the disclosure of the embodiments of the present invention, the components and settings of specific examples are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. In addition, the embodiments of the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0038] The front, back, left, and right directions mentioned below are references Figure 2 , Figure 2 The front, back, left, and right in the text correspond to the front, back, left, and right below. Figure 2 The direction perpendicular to the paper corresponds to the up and down directions in the following text.

[0039] See also Figure 1 、 Figure 5As shown, this embodiment provides a mold quick-change structure in a bottle blowing machine, which is used to lock the mold 1 in the shell 2. The mold 1 and the shell 2 are connected by a circular arc groove 11 and a circular arc flange 21 provided thereon in a one-to-one correspondence, and the mold 1 can rotate relative to the shell 2 along its circumferential direction. Specifically, the shell 2 and the mold 1 are semi-circular columns, and the upper inner side (i.e., the rear side) of the shell 2 is provided with a circular arc flange 21, and the upper outer side (i.e., the front side) of the mold 1 is provided with an arc groove 11. The arc flange 21 can be fitted into the arc groove 11. The mold 1 can rotate relative to the shell 2 along its circumferential direction through the connection with the shell 2 to achieve relative assembly and disassembly of the two.

[0040] The above-mentioned mold quick-change structure includes a first limiting mechanism 3 and a second limiting mechanism 4 respectively arranged at the left and right ends of the shell 2 and used to limit the left and right ends of the mold 1 one by one. 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 includes a connecting plate 31 disposed at the left end of the housing 2, a through hole 32 extending through the connecting plate 31 in the front-to-back direction, a rotating shaft 33 coaxially inserted into the through hole 32 with its front and rear ends extending out of the through hole 32, a limiting member 34 disposed at the front end of the rotating shaft 33 and located in front of the connecting plate 31, an elastic member 35 with its two ends respectively abutting between the rear end face of the limiting member 34 and the front end face of the connecting plate 31 in its elastic expansion direction, and a first pressing plate 36 disposed at the rear end of the rotating shaft 33 and located behind the connecting plate 31. The rotating shaft 33 is rotatably disposed in the through hole 32 about its own axis, and the elastic member 35 is used to provide an elastic restoring force that presses the first pressing plate 36 against the rear end face of the connecting plate 31.

[0042] In this embodiment, the stopper 34 is a retaining spring protruding from the front end of the rotating shaft 33, and the elastic member 35 is a butterfly spring sleeved on the rotating shaft 33. This arrangement ensures that when the first pressure plate 36 rotates about the axis of the rotating shaft 33, the elastic member 35 can always keep the first pressure plate 36 in contact with the connecting plate 31.

[0043] Based on the above structure, the first pressing plate 36 has a limit position and an unlocking position. The first pressing plate 36 is used to switch between the limit position and the unlocking position by rotating with the rotating shaft 33:

[0044] See also Figure 1-3 As shown, when the first pressing plate 36 is in the limiting position, the end of the first pressing plate 36 away from the rotating shaft 33 is used to cover the left end of the mold 1 along the front-back direction;

[0045] See also Figure 5-7 As shown, when the first pressing plate 36 is in the unlocked position, the end of the first pressing plate 36 away from the rotating shaft 33 rotates away from the mold 1.

[0046] When the first pressure plate 36 switches from the restricted position to the unlocked position, the first pressure plate 36 rotates along with the rotation shaft 33 through an angle α, where α ≥ 90°. In this embodiment, the first pressure plate 36 is arranged horizontally when in the restricted position and vertically when in the unlocked position, and α is 90°.

[0047] See also Figure 4 As shown, the connecting plate 31 is provided with a stopper protrusion 38 for limiting the position of the first pressure plate 36 after it switches from the unlocked position to the restricted position. In this embodiment, the stopper protrusion 38 is provided rearwardly on the rear end surface of the connecting plate 31 and is located in the rotation path of the first pressure plate 36. This arrangement allows the first pressure plate 36 to rotate counterclockwise 90° from the unlocked position to the restricted position, assisted by the stopper protrusion 38 directly above it, enabling a faster and more rapid locking action.

[0048] See also Figure 3 、 Figure 7 As shown, for ease of operation, the rear end of the first pressing plate 36 near one end of the rotating shaft 33 is recessed forward to form an operating hole 37 for a wrench to engage. With this arrangement, when the first pressing plate 36 needs to be rotated, the first pressing plate 36 can be easily rotated by simply inserting the wrench into the operating hole 37.

[0049] See also Figure 1 As shown, there are multiple first limiting mechanisms 3, two in this embodiment, and the two first limiting mechanisms 3 are arranged at intervals along the length extension direction (i.e., the vertical direction) of the housing 2 at the left end of the housing 2. By providing multiple first limiting mechanisms 3, the limiting effect of the mold 1 can be guaranteed.

[0050] See also Figure 1 As shown, the second limiting mechanism 4 includes a second pressing plate 41 for capping the right end of the mold 1 in the front-to-back direction, and a fixing member 42 for mounting the second pressing plate 41 on the housing 2. The second pressing plate 41 is generally not removed and is only used to limit the right end of the mold 1. When the mold 1 needs to be replaced, it is only necessary to adjust the first pressing plates 36 of the multiple first limiting mechanisms 3 on the left side to the unlocked position.

[0051] The working process of this embodiment is described in detail below:

[0052] When the mold 1 needs to be replaced, the first pressing plate 36 is adjusted by a wrench to rotate clockwise so that the end away from the rotating shaft 33 is rotated downward until it is completely offset from the limiting groove 12 at the left end of the mold 1 in the front-to-back direction. At this time, the mold 1 can be rotated leftward along the circumference of the shell 2 to be removed and replaced;

[0053] After the replacement is completed, the first pressure plate 36 is adjusted by a wrench to rotate counterclockwise to reset, so that the end away from the rotating shaft 33 rotates upward until it is blocked in the limiting groove 12 at the left end of the mold 1 along the front-to-back direction, thereby limiting the mold 1.

[0054] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A mold quick-change mechanism for a bottle blowing machine, used to lock the mold in a housing, wherein the mold and the housing are connected by corresponding arc grooves and arc flanges provided thereon, and the mold can rotate relative to the housing along its circumferential direction, characterized by: The mold quick-change structure includes a first limiting mechanism and a second limiting mechanism respectively provided at the left and right ends of the housing and used to limit the left and right ends of the mold in a one-to-one correspondence; The first limiting mechanism includes a connecting plate provided at the left end of the housing and having a through hole opened in the front-to-back direction, a rotating shaft coaxially inserted into the through hole and with its front and rear ends respectively extending out of the through hole, a limiting member provided at the front end of the rotating shaft, an elastic member with its two ends respectively abutting between the limiting member and the front end surface of the connecting plate in its own elastic expansion and contraction direction, and a first pressing plate provided at the rear end of the rotating shaft, the rotating shaft being rotatably provided in the through hole around its own axis, the elastic member being used to provide an elastic restoring force to press the first pressing plate against the rear end surface of the connecting plate; The first pressing plate has a limit position and an unlocking position, and the first pressing plate is used to switch between the limit position and the unlocking position by rotating with the rotating shaft. When the first pressing plate is in the limiting position, the end of the first pressing plate away from the rotating shaft is used to cover the left end of the mold along the front-to-back direction; When the first pressing plate is switched from the limiting position to the unlocking position, the end of the first pressing plate away from the rotating shaft rotates away from the mold.

2. The mold quick-change structure in the bottle blowing machine according to claim 1, characterized in that: The limiting member is a retaining spring that protrudes from the front end of the rotating shaft.

3. The mold quick-change structure in the bottle blowing machine according to claim 1, characterized in that: The elastic member is a butterfly spring sleeved on the rotating shaft.

4. The mold quick-change structure in the bottle blowing machine according to claim 1, characterized in that: The rear end of the first pressing plate close to one end of the rotating shaft is recessed forward to form an operating hole for being clamped by a wrench.

5. The mold quick-change structure in the bottle blowing machine according to claim 1, characterized in that: The connecting plate is provided with a limiting protrusion for limiting the first pressing plate after it is switched from the unlocking position to the limiting position.

6. The mold quick-change structure in the bottle blowing machine according to claim 5, characterized in that: The limiting protrusion is protruding backward on the rear end surface of the connecting plate and is located on the rotation path of the first pressing plate.

7. The mold quick-change structure in the bottle blowing machine according to claim 1, characterized in that: When the first pressing plate is switched from the limiting position to the unlocking position, the first pressing plate rotates along with the rotating shaft through an angle α, where α≥90°.

8. The mold quick-change structure in the bottle blowing machine according to claim 1, characterized in that: There are a plurality of first limiting mechanisms, which are arranged in sequence and spaced apart along the length extension direction of the shell and are arranged at the left end of the shell.

9. The mold quick-change structure in the bottle blowing machine according to claim 1, characterized in that: The second limiting mechanism includes a second pressing plate for covering the right end of the mold along the front-back direction, and a fixing member for mounting the second pressing plate on the housing.

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