阅读说明：本技术 瓶盖模压机双脱模机构 (Double-demoulding mechanism of bottle cap mould pressing machine ) 是由 黄海燕 于 2020-06-19 设计创作，主要内容包括：瓶盖模压机双脱模机构,包括安装在主机上板上的上模固定座,上模固定座中设置上模螺杆,上模螺杆上设置牙套和脱模套,上模螺杆中设置中心脱模机构,脱模套外设置外脱辅助机构,所述中心脱模机构包括中心顶杆,中心顶杆上连接水孔接头,水孔接头连接水路,水孔接头上设置顶杆弹簧螺母和中心滚轮,顶杆弹簧螺母与上模螺杆之间设置顶杆弹簧,在机架顶部下设置中心凸轮,中心滚轮与中心凸轮配合；所述外脱辅助机构包括在主机上板中设置外脱导杆,外脱导杆下连接外脱板,外脱板横向连接脱模套,外脱导杆上设置滚轮座,滚轮座与主机上板之间设置外脱弹簧,滚轮座上设置外脱滚轮,在机架顶部下设置外脱凸轮,外脱滚轮与外脱凸轮配合。(The double-demolding mechanism of the bottle cap molding press comprises an upper die fixing seat arranged on an upper plate of a host, wherein an upper die screw rod is arranged in the upper die fixing seat, a thread sleeve and a demolding sleeve are arranged on the upper die screw rod, a central demolding mechanism is arranged in the upper die screw rod, an external demolding auxiliary mechanism is arranged outside the demolding sleeve, the central demolding mechanism comprises a central ejector rod, a water hole joint is connected onto the central ejector rod, the water hole joint is connected with a water channel, an ejector rod spring nut and a central roller wheel are arranged on the water hole joint, an ejector rod spring is arranged between the ejector rod spring nut and the upper die screw rod, a central cam is arranged below the top; the external demoulding auxiliary mechanism comprises an external demoulding guide rod arranged in an upper plate of a main machine, an external demoulding plate connected below the external demoulding guide rod and transversely connected with a demoulding sleeve, a roller seat arranged on the external demoulding guide rod, an external demoulding spring arranged between the roller seat and the upper plate of the main machine, an external demoulding roller arranged on the roller seat, an external demoulding cam arranged below the top of the main machine, and an external demoulding roller matched with the external demoulding cam.)

1. A double-demoulding mechanism of a bottle cap moulding press comprises an upper mould fixing seat (2) arranged on an upper plate (1) of a moulding press main machine, an upper mould screw (3) is arranged in the upper mould fixing seat (2), a tooth socket (5) is arranged on the upper mould screw, and a demoulding socket (6) is arranged outside the tooth socket, and is characterized in that a central demoulding mechanism is arranged in the upper mould screw (3), an outer demoulding auxiliary mechanism is arranged outside the demoulding socket (6), the central demoulding mechanism comprises a central ejector rod (7) arranged in the upper mould screw (3), a water hole connector (8) is connected on the central ejector rod (7), the water hole connector (8) is connected with a water channel, an ejector rod spring nut (15) and a central roller (9) are arranged on the water hole connector (8), an ejector rod spring (16) is arranged between the ejector rod spring nut (15) and the upper mould screw (3), a central cam (11) is arranged under the, when the mould pressing machine works, the main machine of the mould pressing machine rotates to drive the central idler wheel (9) to be matched with the central cam (11); the outer demoulding auxiliary mechanism comprises an outer demoulding guide rod (17) arranged in a main machine upper plate (1), an outer demoulding plate (18) connected below the outer demoulding guide rod (17), an outer demoulding sleeve (6) transversely connected with the outer demoulding plate (18), a roller seat (19) arranged on the outer demoulding guide rod (17), an outer demoulding spring (20) arranged between the roller seat (19) and the main machine upper plate (1), an outer demoulding roller (21) arranged on the roller seat (19), an outer demoulding cam (22) arranged below the top of a frame (10) of the mould pressing machine, and when the outer demoulding auxiliary mechanism works, a main machine of the mould pressing machine rotates to drive the outer demoulding roller (21) to be matched with the outer demoulding cam (22).

2. The dual stripper mechanism of a bottle cap molding press as claimed in claim 1, wherein a connecting rod (26) is provided under the frame (10), the connecting rod (26) is connected to the center cam (11), and an anti-overstress spring (27) is provided between the center cam and the connecting rod.

3. The dual stripper mechanism of bottle cap molding press according to claim 1, characterized in that the upper mold screw (3) and the upper mold holder (2) are provided with a threaded sleeve (25), and the ejector spring (16) is pressed between the threaded sleeve (25) and the ejector spring nut (15).

4. The dual stripper mechanism of bottle cap molding press as claimed in claim 1 wherein the water hole adapter (8) is provided with a positioning plate (30), the positioning plate (30) is connected with a positioning screw (31) fixed on the upper plate (1) of the main body.

5. The dual stripper mechanism of a bottle cap die press as claimed in claim 1, characterized in that a ball sleeve retainer (29) is provided between the mouthpiece (5) and the stripper sleeve (6).

6. The dual stripper mechanism of bottle cap die press according to claim 1, characterized in that a guide (28) is provided between the outer stripper guide (17) and the upper plate (1) of the main body.

Technical Field

The invention relates to a double-demolding mechanism of a bottle cap molding press, and belongs to the field of plastic machinery.

Background

The bottle cap molding press is one of the common devices for producing plastic bottle caps, and mainly comprises a main machine part assembly, a rotary oil sleeve mechanism, an oil cylinder assembly, a transmission mechanism, a rotary support, a feeding cap discharging mechanism, a demolding mechanism, a metering extrusion mechanism, an extrusion mechanism and a hopper, wherein the conventional demolding mechanism is formed by that a demolding cam exerts force on a guide rod on a demolding sleeve, and the demolding sleeve pushes the edge of a cap downwards to complete the demolding process. However, some caps with large mouth and small teeth will be stripped silk clothes, the product will be deformed and cannot be produced by conventional methods. And the demolding sleeve is directly contacted with the upper mold screw rod, and the demolding sleeve directly moves up and down on the upper mold screw rod repeatedly in the demolding process, so that the demolding sleeve is easy to wear after being used for a long time, and the product generates flash.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a double-demoulding mechanism of a bottle cap moulding press, which adopts a double-demoulding structure, ensures the integrity of a product in a mode that a mould reaches a central demoulding cam position during the rotation of a machine, firstly, the centre is ejected out, and then a demoulding sleeve assists the edge to eject out for demoulding.

The technical scheme of the double demoulding mechanism of the bottle cap mould pressing machine is as follows: the central demoulding mechanism comprises a central ejector rod arranged in the upper die screw, a central water hole joint is connected to the central ejector rod, the water hole joint is connected with a water channel, an ejector rod spring nut and a central idler wheel are arranged on the water hole joint, an ejector rod spring is arranged between the ejector rod spring nut and the upper die screw, a central cam wheel is arranged below the top of a frame of the die press, and when the central demoulding mechanism works, the main die press rotates to drive the central idler wheel to be matched with the central cam wheel; the outer stripping auxiliary mechanism comprises an outer stripping guide rod arranged in an upper plate of a main machine, an outer stripping plate connected below the outer stripping guide rod and transversely connected with a stripping sleeve, a roller seat arranged on the outer stripping guide rod, an outer stripping spring arranged between the roller seat and the upper plate of the main machine, an outer stripping roller arranged on the roller seat, and an outer stripping cam arranged below the top of a frame of a molding press.

The double-demoulding mechanism of the bottle cap moulding press disclosed by the invention has the advantages that during production, a main machine of the moulding press always rotates, when a bottle cap is moulded, the main machine just rotates to the positions of the outer demoulding cam and the central cam, at the moment, the central demoulding mechanism acts firstly, the central roller is contacted with the central cam, the central cam drives the central ejector rod to move downwards through the central roller to extend out of the upper mould screw to be propped against the inner center of the bottle cap, the bottle cap is jacked and shed from the upper mould screw, the outer demoulding auxiliary mechanism acts in a delayed manner, the delayed time is 0.5 seconds, the outer demoulding roller is contacted with the outer demoulding cam to drive the outer demoulding guide rod to press downwards, the outer demoulding guide rod drives the outer demoulding plate, the outer demoulding plate drives the demoulding sleeve to demould from the outer. According to the scheme, the inner and outer double demolding mechanisms are adopted, the mold reaches the position of the central demolding cam in the rotation of the machine, the center is firstly ejected out, then the demolding sleeve assists in ejecting demolding at the edge, the integrity of a product is guaranteed, a cover which cannot be normally demolded can be normally produced on the bottle cap molding press, and the production efficiency is improved.

According to the double-demolding mechanism of the bottle cap molding press, the connecting rod is arranged below the rack and connected with the central cam, the over-force preventing spring is arranged between the central cam and the connecting rod, and when the resistance force applied when the central ejector rod is subjected to demolding is too large, the central cam can rebound upwards, so that the mold is prevented from being damaged by over-force. The upper die screw and the upper die fixing seat are provided with threaded sleeves, and the ejector rod spring is propped between the threaded sleeves and the ejector rod spring nut, so that the ejector rod spring is convenient to install. The water hole connector on set up the locating plate, the locating plate is connected set screw, and set screw fixes on the host computer upper plate, prevents that central ejector pin free rotation from transversely getting into central cam, damaging the mould. The ball sleeve retainer is arranged between the tooth socket and the demolding sleeve, in the demolding process, the upper mold screw rod and the demolding sleeve are not directly rubbed, acting force is uniformly distributed on the ball sleeve retainer, sliding friction reduces damage to the upper mold screw rod, the service life is prolonged, and the production cost is reduced. A guide sleeve is arranged between the external release guide rod and the upper plate of the host machine, and the friction of the external release guide rod is reduced and the service life is prolonged.

Drawings

Fig. 1 is a schematic structural view of a double demolding mechanism of the bottle cap molding press of the invention;

FIG. 2 is a schematic view of the assembly of the central stripping mechanism and the external stripping assist mechanism of the present invention;

FIG. 3 is a schematic view of the assembly of the center ram and the upper die screw of the present invention.

Detailed Description

The invention relates to a double demoulding mechanism of a bottle cap moulding press, which comprises an upper mould fixing seat 2 arranged on an upper plate 1 of a main machine of the moulding press, an upper mould screw rod 3 arranged in the upper mould fixing seat 2, a tooth socket 5 arranged on the upper mould screw rod, a demoulding socket 6 arranged outside the tooth socket, a central demoulding mechanism arranged in the upper mould screw rod 3, and an external demoulding auxiliary mechanism arranged outside the demoulding socket 6, wherein the central demoulding mechanism comprises a central ejector rod 7 arranged in the upper mould screw rod 3, a cooling water hole 4 arranged in the central ejector rod 7 in an actual product and capable of playing a cooling role and preventing the central ejector rod from being overhigh in temperature, a water hole connector 8 connected on the central ejector rod 7, a water channel connected on the water hole connector 8, an ejector rod spring nut 15 and a central roller 9 arranged on the water hole connector 8, an ejector rod spring 16 arranged between the ejector rod spring nut 15 and the upper mould screw rod 3, and a central cam 11 arranged under the, when the mould pressing machine works, the main machine of the mould pressing machine rotates to drive the central idler wheel 9 to be matched with the central cam 11; the external demoulding auxiliary mechanism comprises an external demoulding guide rod 17 arranged in a main machine upper plate 1, an external demoulding plate 18 connected below the external demoulding guide rod 17, a demoulding sleeve 6 transversely connected with the external demoulding plate 18, a roller seat 19 arranged on the external demoulding guide rod 17, an external demoulding spring 20 arranged between the roller seat 19 and the main machine upper plate 1, an external demoulding roller 21 arranged on the roller seat 19, and an external demoulding cam 22 arranged below the top of a machine frame 10 of the moulding press, wherein when the moulding press main machine rotates to drive the external demoulding roller 21 to be matched with the external demoulding cam 22. In the production, a main machine of the molding press always rotates, when a bottle cap is molded, the bottle cap just rotates to the positions of the outer demoulding cam 22 and the central cam 11, at the moment, the central demoulding mechanism firstly acts, the central roller 9 is in contact with the central cam 11, the central cam 11 drives the central ejector rod 7 to move downwards to extend out of the upper mould screw rod 3 through the central roller 9 to be ejected to the inner center of the bottle cap, the bottle cap is ejected from the upper mould screw rod to be released, the outer demoulding auxiliary mechanism acts in a delayed mode, the time of the delayed mode is 0.5 second, the outer demoulding roller 21 is in contact with the outer demoulding cam 22 to drive the outer demoulding guide rod 17 to press downwards, the outer demoulding guide rod 17 drives the outer demoulding plate 18, the outer demoulding plate 18 drives the demoulding sleeve 6 to demould from the outer wall. According to the scheme, the inner and outer double demolding mechanisms are adopted, the mold reaches the position of the central demolding cam in the rotation of the machine, the center is firstly ejected out, then the demolding sleeve assists in ejecting demolding at the edge, the integrity of a product is guaranteed, a cover which cannot be normally demolded can be normally produced on the bottle cap molding press, and the production efficiency is improved. The frame 10 under set up connecting rod 26, connecting rod 26 connects central cam 11, sets up between central cam and the connecting rod and prevents the spring 27 that excessively exerts force, when the resistance that receives when the central ejector pin takes off the lid was too big, central cam can upwards kick-back, prevents to exert oneself too violently to damage the mould. The upper die screw rod 3 and the upper die fixing seat 2 are provided with threaded sleeves 25, and the ejector rod spring 16 is pressed between the threaded sleeves 25 and the ejector rod spring nut 15, so that the ejector rod spring is convenient to install. The water hole joint 8 on set up locating plate 30, locating plate 30 connects set screw 31, and set screw fixes on host computer upper plate 1, prevents that central ejector pin free rotation from transversely getting into central cam, damaging the mould. A ball sleeve retainer 29 is arranged between the tooth socket 5 and the demoulding sleeve 6, in the demoulding process, the upper die screw rod and the demoulding sleeve do not directly rub, acting force is evenly distributed on the ball sleeve retainer, sliding friction reduces damage to the upper die screw rod, the service life is prolonged, and the production cost is reduced. A guide sleeve 28 is arranged between the external release guide rod 17 and the host upper plate 1, and the guide sleeve reduces friction of the external release guide rod and prolongs the service life.