阅读说明：本技术 一种用于双开模吹瓶机的底模联动机构 (Bottom die linkage mechanism for double-die bottle blowing machine ) 是由 钱志良 张晓飞 董腾中 高伟强 吴书朋 于荣鹏 于 2021-07-26 设计创作，主要内容包括：本发明公开了一种用于双开模吹瓶机的底模联动机构,包括机架、滑块Ⅰ、滑块Ⅱ、导柱Ⅰ、导柱Ⅱ、连杆和驱动件,机架上有导槽,滑块Ⅰ能沿导槽上下移动；导柱Ⅰ和Ⅱ与机架固定连接,两导柱轴线平行且与机架上导槽的方向垂直,两导柱轴线所在的平面与机架上导槽的方向平行；滑块Ⅱ与两导柱组成移动副,能沿导柱左右往复移动；驱动件与两个边模架之一固定连接；连杆与驱动件和滑块Ⅱ转动副连接,将驱动件的摆动转变成滑块Ⅱ的往复移动；滑块Ⅰ和滑块Ⅱ上分别装设有凸轮和滚子,凸轮和滚子组成平面移动凸轮副,将滑块Ⅱ的左右往复移动转变成滑块Ⅰ的上下移动,从而实现边模与底模联动。本发明联动机构,结构简单,制造和安装容易,性能可靠。(The invention discloses a bottom die linkage mechanism for a double-die-opening bottle blowing machine, which comprises a rack, a slide block I, a slide block II, a guide pillar I, a guide pillar II, a connecting rod and a driving piece, wherein the rack is provided with a guide groove, and the slide block I can move up and down along the guide groove; the guide posts I and II are fixedly connected with the rack, the axes of the two guide posts are parallel and vertical to the direction of the guide groove on the rack, and the plane where the axes of the two guide posts are located is parallel to the direction of the guide groove on the rack; the sliding block II and the two guide posts form a moving pair which can reciprocate left and right along the guide posts; the driving piece is fixedly connected with one of the two side die carriers; the connecting rod is connected with the driving piece and the sliding block II revolute pair to convert the swing of the driving piece into the reciprocating movement of the sliding block II; the sliding block I and the sliding block II are respectively provided with a cam and a roller, the cam and the roller form a plane moving cam pair, and the left-right reciprocating movement of the sliding block II is converted into the up-down movement of the sliding block I, so that the linkage of the side die and the bottom die is realized. The linkage mechanism has the advantages of simple structure, easy manufacture and installation and reliable performance.)

1. The utility model provides a die block link gear for two mould bottle blowing machines that open, includes frame, slider I, slider II, guide pillar I, guide pillar II, connecting rod and driving piece, its characterized in that: the rack is provided with a guide groove, and the sliding block I is connected with the guide groove sliding pair and can move up and down along the guide groove; the guide pillar I and the guide pillar II are respectively fixedly connected with the rack, the axes of the two guide pillars are parallel and vertical to the direction of the guide groove, and the plane where the axes of the two guide pillars are located is parallel to the direction of the guide groove; the sliding block II, the guide pillar I and the guide pillar II form a moving pair and can move left and right in a reciprocating mode along the axis direction of the guide pillar; the driving piece is fixedly connected with one of the two side die frames and synchronously swings with the connected side die frame; the connecting rod is respectively connected with the driving piece and the sliding block II revolute pair and is used for converting the swing of the driving piece into the left and right reciprocating movement of the sliding block II;

the sliding block I and the sliding block II are respectively provided with a cam and a roller, the cam and the rollers form a plane moving cam pair, and the plane moving cam pair is used for converting the left-right reciprocating movement of the sliding block II into the up-down movement of the sliding block I, so that the up-down lifting of a bottom die carrier connected with the sliding block I is realized.

2. The bottom die linkage mechanism for the double-die bottle blowing machine according to claim 1, which is characterized in that: when the two side die frames are in a die assembly position, the sliding block II is in a right limit position, and correspondingly, the sliding block I is in an upper limit position;

when the two side die frames swing reversely and open, the driving piece swings along with one of the two side die frames, the sliding block II is driven to move leftwards from the right limit position through the connecting rod, and then the sliding block I is driven to move downwards from the upper limit position through the plane moving cam pair, so that the linkage of die opening and bottom die frame descending is realized.

3. The bottom die linkage mechanism for the double-die bottle blowing machine according to claim 1, which is characterized in that: the connecting rod is a plane connecting rod, and the axis of a rotating pair formed by the connecting rod and the driving piece is parallel to the axis of a rotating pair formed by the connecting rod and the sliding block II.

4. The bottom die linkage mechanism for the double-die bottle blowing machine according to claim 1, which is characterized in that: in the plane moving cam pair, two rollers are arranged, the cam is a flange cam, and profile surfaces on two sides of the flange are respectively abutted to the two rollers.

5. The bottom die linkage mechanism for the double-die bottle blowing machine according to claim 4, which is characterized in that: and the flange is provided with a buffer column which is positioned at the contact position of the flange and the roller when the mold closing and locking are carried out.

6. The bottom die linkage mechanism for the double-die bottle blowing machine according to claim 1, which is characterized in that: in the plane moving cam pair, two rollers are arranged, the cam is a groove cam, and profile surfaces on two sides of the groove are respectively abutted to the two rollers.

7. The bottom die linkage mechanism for the double-die bottle blowing machine according to claim 6, which is characterized in that: and a buffer column is arranged on the groove and is positioned at the contact position of the groove and the roller when the mold closing and locking are carried out.

8. The bottom die linkage mechanism for the double-die bottle blowing machine according to claim 1, which is characterized in that: the cam is installed in slider I is last, two the roller install in slider II is last, slider I with slider II constitutes the plane removes the cam pair.

9. The bottom die linkage mechanism for the double-die bottle blowing machine according to claim 1, which is characterized in that: the cam is installed on slider II, two the roller is installed on slider I, slider I with slider II constitutes the plane removes the cam pair.

Technical Field

The invention relates to the technical field of bottle blowing, in particular to a bottom die linkage mechanism for a double-die bottle blowing machine.

Background

The bottle blowing machine is a key device for producing various liquid packaging bottles. The process of blowing the bottle by the existing bottle blowing machine mainly comprises the steps of unlocking two side mold frames, opening the two side mold frames, descending the bottom mold frame, taking the bottle, sending a blank, folding the two side mold frames, ascending the bottom mold frame, locking the two side mold frames, blowing the bottle and the like.

At present, the lifting of the bottom die frame has the following technical schemes:

1. the opening and closing of the two side die frames are controlled by the die opening and closing cams, the lifting of the bottom die frame is controlled by the bottom die cams, and the two die frames work independently. The technical scheme has higher requirements on manufacturing, installation and debugging, is difficult to meet the requirements of high-speed bottle blowing, and has larger impact and noise between the bottom die cam and the roller in the lifting process of the bottom die.

One of the two side die frames is connected with the bottom die frame through the spatial cylindrical cam pair, and when the side die frame swings, the bottom die frame is driven to lift through the spatial cylindrical cam pair, so that the linkage of the bottom die and the side die is realized. The technical scheme does not increase additional moving parts, has simple structure and reliable transmission, but has high manufacturing requirement of the cylindrical cam pair and difficult installation and debugging.

The bottom die frame is connected with the swing arms of the die opening and closing cams through the connecting rod mechanisms or the connecting rod cam combination mechanisms, the die opening and closing cams drive the two side die frames to be opened and closed through the die opening and closing cam swing arms, and meanwhile the bottom die frame is driven to ascend and descend through the connecting rod mechanisms or the connecting rod cam combination mechanisms, so that the linkage of the bottom die and the side dies is realized. In addition, the technical scheme drives the bottom die frame to lift through the die opening and closing cam swing arm, and direct linkage of the bottom die and the side die is not realized.

Disclosure of Invention

The invention aims to provide a bottom die linkage mechanism for a double-die bottle blowing machine, which has the advantages of simple structure, lower processing and mounting difficulty and smaller dynamic load, can effectively reduce the vibration and the impact of the mechanism, enhance the motion stability and the reliability of the bottle blowing machine and improve the high-speed performance of the whole machine.

In order to achieve the purpose, the invention adopts the technical scheme that:

a bottom die linkage mechanism for a double-die bottle blowing machine comprises a rack, a slide block I, a slide block II, a guide pillar I, a guide pillar II, a connecting rod and a driving piece, wherein a guide groove is formed in the rack, and the slide block I is connected with a guide groove moving pair and can move up and down along the guide groove; the guide pillar I and the guide pillar II are respectively fixedly connected with the rack, the axes of the two guide pillars are parallel and vertical to the direction of the guide groove, and the plane where the axes of the two guide pillars are located is parallel to the direction of the guide groove; the sliding block II, the guide pillar I and the guide pillar II form a moving pair and can move left and right in a reciprocating mode along the axis direction of the guide pillar; the driving piece is fixedly connected with one of the two side die frames and synchronously swings with the connected side die frame; the connecting rod is respectively connected with the driving piece and the sliding block II revolute pair and is used for converting the swing of the driving piece into the left and right reciprocating movement of the sliding block II;

the sliding block I and the sliding block II are respectively provided with a cam and a roller, the cam and the rollers form a plane moving cam pair, and the plane moving cam pair is used for converting the left-right reciprocating movement of the sliding block II into the up-down movement of the sliding block I, so that the up-down lifting of a bottom die carrier connected with the sliding block I is realized.

Preferably, when the two side die frames are in the die closing position, the slide block II is in the right limit position, and correspondingly, the slide block I is in the upper limit position;

when the two side die frames swing reversely and open, the driving piece swings along with one of the two side die frames, the sliding block II is driven to move leftwards from the right limit position through the connecting rod, and then the sliding block I is driven to move downwards from the upper limit position through the plane moving cam pair, so that the linkage of die opening and bottom die frame descending is realized.

Preferably, the connecting rod is a plane connecting rod, and the axis of a rotating pair formed by the connecting rod and the driving piece is parallel to the axis of a rotating pair formed by the connecting rod and the sliding block II.

Preferably, in the planar moving cam pair, there are two rollers, the cam is a flange cam, and two side profile surfaces of the flange are respectively abutted against the two rollers.

More preferably, the flange is provided with a buffer column, and the buffer column is located at a contact position of the flange and the roller when the mold is closed and locked.

Preferably, in the planar moving cam pair, there are two rollers, the cam is a grooved cam, and two profile surfaces of the groove are respectively abutted to the two rollers.

More preferably, a buffer column is arranged on the groove, and the buffer column is located at the contact position of the groove and the roller when the mold is closed and locked.

Preferably, the cam is installed on the slider I, the two rollers are installed on the slider II, and the slider I and the slider II form the plane moving cam pair.

Preferably, the cam is installed on the sliding block II, the two rollers are installed on the sliding block I, and the sliding block I and the sliding block II form the plane moving cam pair.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

1. according to the bottom die linkage mechanism for the double-die bottle blowing machine, the die opening and closing of the side die frame swings to drive the driving piece to swing, the sliding block II is driven to move horizontally through the plane connecting rod, and the sliding block I (fixedly connected with the bottom die frame) is driven to lift through the plane moving cam pair, so that the direct linkage of the bottom die and the side die is realized.

The plane connecting rod and the plane cam are easy to manufacture and install.

And the sliding block II is connected with the side formwork through the plane connecting rod, so that the connection is reliable and the installation is convenient.

And the slide block I (fixedly connected with the bottom die set) is connected with the slide block II through the plane moving cam pair, so that the motion accuracy and reliability are guaranteed, and the service life is long.

In the closing and locking process of the die frames on the two sides and the bottom die frame, the position of the bottom die frame is difficult to be completely consistent with the position of the wedging and locking, and the bottom die frame is enabled to be instantly subjected to upward punching or downward punching in the wedging and locking process due to the inconsistency, so that impact and noise are generated. By adopting the technical scheme, the rubber buffer column can be additionally arranged at the corresponding position of the cam profile so as to eliminate the impact and the noise.

Drawings

Fig. 1 is a schematic structural view of a bottom die linkage mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a frame structure;

FIG. 3 is a schematic structural diagram of a sliding block I;

FIG. 4 is a schematic structural diagram of a sliding block II.

Wherein: 1. a frame; 2. a guide pillar I; 3. a guide pillar II; 4. a cam; 5. a sliding block II; 6. a connecting rod; 7. a drive member; 8. a sliding block I; 9. a guide groove; 10. a flange; 11. a buffer column; 12. a roller; 13. a guide post hole; 14. a pin shaft; 15. a side die frame I; 16. a side die frame II; 17. a first shaft.

Detailed Description

The technical solution of the present invention is further explained below with reference to the specific embodiments and the accompanying drawings.

Referring to fig. 2, a guide groove 9 extending in the vertical direction is formed in the frame 1, a guide pillar i 2 and a guide pillar ii 3 which are parallel to each other and extend in the left-right direction are fixedly connected to the frame 1, the axes of the two guide pillars are parallel to each other and perpendicular to the direction of the guide groove 9, and the plane on which the axes of the two guide pillars are located is a vertical plane and is parallel to the direction of the guide groove 9.

Referring to fig. 3, a sliding block i 8 (fixedly connected with a bottom die carrier) and a guide groove 9 on a frame 1 form a moving pair, so that the sliding block i 8 can move up and down along the guide groove 9 on the frame 1; the cam 4 is a plane moving cam and is fixedly connected with the sliding block I8 through a screw (not shown in the figure); the cam 4 is provided with a flange 10, the flange 10 is provided with a cushion column 11 made of rubber, and the position of the cushion column 11 corresponds to the contact position of the flange 10 and a roller 12 (described below) when the side forms and the bottom forms are wedged and locked (namely, the lower right end of the flange 10 in fig. 3). In this embodiment, there are two rollers 12, which are respectively abutted against the two side profile surfaces of the flange 10.

Referring to fig. 4, two guide post holes 13 with parallel axes are formed in the sliding block ii 5, and the two guide post holes 13 are matched with the guide posts i 2 and ii 3 on the rack 1, so that the sliding block ii 5 can horizontally move along the two guide posts on the rack 1; the two rollers 12 are movably arranged on the sliding block II 5, the axes of the two rollers 12 are parallel to each other, and the relative positions of the two rollers 12 ensure that the two rollers 12 can keep direct contact with the two side profile surfaces of the flange 10 on the cam 4; the pin shaft 14 is fixedly arranged on the sliding block II 5, and when the two guide post holes 13 on the sliding block II 5 are respectively matched with the guide post I2 and the guide post II 3 on the rack 1, the axis of the pin shaft 14 is parallel to the guide groove 9 on the rack 1.

Referring to fig. 1, a side formwork i 15 and a side formwork ii 16 are connected with a frame 1 through a first shaft 17 revolute pair and can swing around the first shaft 17; the driving piece 7 is fixedly connected with the side formwork I15, and when the side formwork swings in an opening and closing mode, the driving piece 7 swings along with the side formwork; the sliding block I8 is connected with the rack 1 through a guide groove 9 moving pair and can move up and down relative to the rack 1 along the guide groove 9; the sliding block II 5 is matched with a guide post I2 and a guide post II 3 which are fixedly connected to the rack 1 through two guide post holes 13 and can move left and right along the two guide posts relative to the rack 1 along the horizontal direction; under the condition of the assembly of the sliding block I8 and the sliding block II 5, two rollers 12 on the sliding block II 5 can be in direct contact with two side profile surfaces of a flange 10 of the cam 4 fixedly connected to the sliding block I8; the left end of the connecting rod 6 is connected with a lower end rotating pair of the driving piece 7, and the right end of the connecting rod 6 is connected with a rotating pair of a pin shaft 14 on the sliding block II 5.

Therefore, when the side die frame I15 swings in an opening and closing mode, the driving part 7 swings along with the side die frame I15, the sliding block II 5 is driven to move horizontally through the connecting rod 6, and further, the sliding block I8 (fixedly connected with the bottom die frame) is driven to move up and down through a plane moving cam pair formed by the rollers 12 and the profile surfaces of the two sides of the flange 10, so that the direct linkage of the side die and the bottom die is realized; when the side die frame I15 and the side die frame II 16 are folded, the sliding block I8 (fixedly connected with the bottom die frame) is positioned at the upper limit position, and at the moment, the two rollers 12 just contact with the buffer column 11 arranged at the right lower end part of the flange 10.

It should be noted that the following cases are merely simple mechanical evolution of the present embodiment, and all should be covered by the protection scope of the present invention:

1. the cam 4 in the plane moving cam pair is arranged on the sliding block II 5, and the roller 12 is arranged on the sliding block I8;

2. the plane moving cam pair adopts a groove structure to replace a flange structure;

3. the driving piece 7 is fixedly connected with the side formwork II 16;

4. connecting rod 6 is connected with the revolute pair of driving piece 7 and is changed into connecting rod 6 and the revolute pair of the mould cam swing arm that opens and shuts and be connected, like this, the mould cam swing arm that opens and shuts can order about slider II 5 through connecting rod 6 when ordering about two limit die carriers open and shut, and then, rethread plane movement cam is vice orders about slider I8 (solid even end die carrier) and reciprocates to can indirectly realize the linkage of limit mould and die block.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.