High-speed rolling machine for metal internal thread cap

Abstract

The utility model relates to a high-speed rolling machine for a metal internal thread cap. The high-speed rolling machine comprises a rotationally-installed disc body and a rolling cam fixedly arranged on one side of the disc body. A plurality of groups of rotary lifting rods are circumferentially distributed above the disc body, and rolling dies are mounted at the tail ends of the rotary lifting rods; a plurality of groups of material loading molds are circumferentially distributed below the disc body, and each material loading mold is provided with a mold cavity for accommodating a bottle cap; the rotary lifting rods and the material loading molds are opposite up and down and are the same in number; a rolling thread is arranged on the outer side of the rolling die and used for stretching into a die cavity of the material carrying die to be in contact fit with the inner wall of the bottle cap. The material carrying die is provided with an outer circular face used for being matched with the rolling cam in an abutting mode. The device is stable and reliable in structure, continuous mass production can be realized, and the production efficiency and the use performance of equipment are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of metal internal thread cap high-speed rolling mill, belong to thread rolling mill structure technical field. BACKGROUND

[0002] On the current market for metal bottle cap with internal thread, its thread forming method mainly adopts stamping process, this traditional stamping process is mainly complex equipment, time-consuming and laborious when operating. Although a small amount of rolling process internal thread forming method appears at present, because of the limitation of structure design, the internal thread shape of the product after forming is not complete and the thread shape between products is not the same, leading to more defective products, unable to complete standardization production, there are also problems such as low production efficiency, unable to adapt to the production rhythm of existing bottle cap production line.

[0003] The utility model discloses a metal cover internal thread rolling mill, the rolling mill is driven to two intermeshing gear by a power source, and strict transmission speed ratio is arranged between the two gears, realizes the linkage cooperation of rolling die and cam, although the rolling mill of this structure rolling internal thread shape size is standardized, but its intermittent working mode, causes big inertia under big load, production stability is insufficient, production efficiency still cannot reach ideal effect.

[0004] Therefore, the present application provides a kind of metal internal thread cap high-speed rolling mill. SUMMARY

[0005] The utility model aims at providing a kind of metal internal thread cap high-speed rolling mill, which has better stability, can realize large-scale quantitative production and has higher production efficiency.

[0006] To solve the above problems, the technical scheme adopted by the utility model is:

[0007] The metal internal thread cap high-speed rolling mill comprises a rotatingly installed disc body and a rolling cam fixedly arranged on one side of the disc body.

[0008] A plurality of rotating lifting rods are circumferentially distributed above the disc body, and a rolling die is installed at the end of each rotating lifting rod.

[0009] A plurality of load-bearing molds are circumferentially distributed below the disc body, and each load-bearing mold has a mold cavity for accommodating a bottle cap.

[0010] The rotating lifting rods and the load-bearing molds are arranged in pairs and have the same number.

[0011] The rolling die has a rolling thread on the outer side, which is used to penetrate into the mold cavity of the load-bearing mold and contact with the inner wall of the bottle cap.

[0012] The carrier mold has an outer cylindrical surface adapted to abut against the rolling cam;

[0013] When the disc body drives a group of rotating lifting rods and carrier molds to reach the rolling cam, the rotating lifting rods rotate and descend at the same time, so that the ends of the rotating lifting rods penetrate into the mold cavity of the carrier mold and contact the inner wall of the bottle cap to complete the rotating rolling. At the same time, the outer cylindrical surface of the carrier mold is in extrusion contact with the rolling cam to form rolling friction, so that the carrier mold completes self-rotation.

[0014] Further, the disc body includes a bottom disc fixed to the rotating sleeve and a guide positioning disc, the bottom disc is circumferentially provided with a plurality of carrier molds, and the guide positioning disc is configured in two layers, and the two guide positioning discs are correspondingly provided with through holes to accommodate the rotating lifting rods.

[0015] Further, the carrier mold is installed on the disc body through an elastic element and a sliding block guide rail. When the rolling cam acts on the carrier mold, the elastic element is compressed and stored energy at the same time, and the rolling cam acting force is combined to strengthen the rolling of the rolling mold on the bottle cap. When the rolling cam is separated from the carrier mold, the elastic element drives the carrier mold to reset.

[0016] Further, the rotating lifting rod includes an outer sleeve rod and an intermediate rod, the outer sleeve rod is slidingly installed on the two guide positioning discs of the disc body, the intermediate rod is provided with a rotating gear at the upper portion and a rolling mold at the lower portion; the rotating gear is engaged with a fixed gear ring arranged above the disc body to transmit power. When the disc body drives the rotating lifting rod to rotate relative to the fixed gear ring, the rotating gear at the upper portion of the rotating lifting rod rotates through the engagement with the fixed gear ring, so as to drive the intermediate rod connected thereto to rotate, and further drive the rolling mold at the lower portion of the intermediate rod to rotate.

[0017] Further, the intermediate rod of the rotating lifting rod has a hollow tube cavity, the upper end of the hollow tube cavity is connected in communication with a vacuum air pump through a vacuum pipeline and a gas distribution valve, and the lower end of the hollow tube cavity is connected in communication with the center through hole of the rolling mold, so that the rolling mold has an adsorption function on the bottle cap.

[0018] Further, the lifting function of the rotating lifting rod is realized through the following structure: a cylindrical cam is fixed above the disc body, a curved groove is formed in the cylindrical surface of the cylindrical cam, a positioning block is arranged on the outer sleeve rod of the rotating lifting rod, a roller is arranged at the end of the positioning block, the roller is embedded in the curved groove of the cylindrical cam and is in rolling connection with the curved groove, when the disc body drives the rotating lifting rod to rotate relative to the cylindrical cam, the roller at the end of the positioning block will roll along the groove track of the cylindrical cam, so as to drive the outer sleeve rod of the rotating lifting rod to move up and down.

[0019] Further, one side of the disc body is provided with a feeding assembly, the feeding assembly comprises a feeding platform and a pushing disc configured on the feeding platform, the pushing disc is provided with pushing grooves matched with the outer periphery of the bottle cap, and the bottle cap is pushed to a predetermined position through the pushing grooves on the edge of the pushing disc when the pushing disc rotates.

[0020] Further, the other side of the disc body is provided with a discharging assembly, the discharging assembly comprises a discharging cam configured on the disc body, a mold ejector matched with the discharging cam, the bottom of the ejector is in rolling contact with the discharging cam through a ball, and the top of the ejector is a base arranged in a mold cavity of a carrying mold and used for supporting the bottle cap; when the carrying mold with the rolled bottle cap rotates to the discharging cam, the mold ejector is lifted by the discharging cam, so that the base in the mold cavity of the carrying mold lifts the bottle cap upward from the mold cavity.

[0021] Further, the discharging assembly further comprises a blowing nozzle and a discharging guide groove arranged above the discharging cam, and the blowing nozzle is used for blowing the lifted bottle cap to the discharging guide groove.

[0022] The metal inner thread cap high-speed rolling machine of the utility model fixes the position of the rolling cam, and a plurality of rolling dies and carrying molds matched with each other are arranged on the disc body rotating at high speed, so that the carrying mold passing through the rolling cam is pressed and the rolling die completes rolling of the inner thread of the bottle cap in the carrying mold at the same time, compared with the traditional rolling mode, the structure of the utility model is more stable and reliable, and can realize continuous mass production, and the production efficiency and equipment performance are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 Fig. 1 is a structure schematic view of the metal inner thread cap high-speed rolling machine of embodiment one;

[0024] Figure 2 : Figure 1 Fig. 2 is a top view of the metal inner thread cap high-speed rolling machine of embodiment one;

[0025] Figure 3 Fig. 3 is a structure schematic view of a rotating lifting rod. DETAILED DESCRIPTION

[0026] The utility model will be described in detail below with reference to the drawings.

[0027] Embodiment one

[0028] The utility model provides a kind of metal internal thread cap high-speed rolling mill, including equipment rack and the feeding assembly 100, rolling mechanism 200 and discharge assembly 300 configured on the equipment rack;Wherein, the feeding assembly 100 is configured at one side of rolling mechanism 200, to provide bottle cap blank to it, the rolling mechanism 200 is used to implement rolling internal thread to bottle cap;The discharge assembly 300 is configured at the other side of rolling mechanism, to concentrate the finished product bottle cap after rolling output.

[0029] The specific structure of each part is described in detail as follows:

[0030] The feeding assembly 100 includes feeding platform 101 and pusher carousel 102 configured on feeding platform 101, the pusher carousel 102 edge is provided with pusher groove matched with the outer periphery of bottle cap, the rotating shaft of the pusher carousel 102 is installed on the first gear 103, and the first gear 103 is driven and connected by pusher motor. When the pusher motor starts, the first gear 103 will drive the pusher carousel 102 to rotate, so as to push the bottle cap in the pusher groove to the discharge position.

[0031] The rolling mechanism 200 includes middle shaft 201 fixedly installed on the equipment rack and disc body, cylindrical cam 202, fixed gear ring 203 installed on the middle shaft 201 in turn from bottom to top, and also includes rolling cam 205 configured on one side of disc body;Wherein, the disc body is rotationally connected with the middle shaft 201 through rotating sleeve 204, the rotating sleeve 204 is installed on the outer periphery of the middle shaft 201 through bearing;The bottom of the rotating sleeve 204 is fixedly connected through the second gear 104 meshing with the first gear 103, and is rotated through the driving of the second gear 104. The cylindrical cam 203 and the fixed gear ring 203 are fixedly connected with the middle shaft 201.

[0032] The disc body is composed of bottom disc 210 and two guide positioning discs 211 above, the bottom disc 210 is circumferentially provided with eight load molds, the load mold has a mold cavity for accommodating bottle cap and an outer cylindrical surface for abutting and extruding with the rolling cam 205, and the load mold is installed on the bottom disc 210 through elastic element and sliding block guide rail;Eight rotating lifting rods 220 are correspondingly installed on the two guide positioning discs 211, the rotating lifting rod 220 is provided with rolling die 230 with rolling thread on the outer side at the end, and the rolling die 230 is used to penetrate into the mold cavity of the load mold and contact with the inner wall of bottle cap.

[0033] The rotating lifting rod 220 comprises a sleeve rod 221 and an intermediate rod 222, the sleeve rod 221 is slidingly installed on the two guide positioning discs 211, the rotating gear 223 which is in meshing transmission with the fixed gear ring 203 is installed on the upper portion of the intermediate rod 222, the lower portion of the intermediate rod 222 is fixedly connected with the rolling die 230, the rolling die 230 has a vacuum adsorption function, the function is realized based on the following structure: a vacuum machine is arranged on the side of the equipment rack, the vacuum machine is connected with the vacuum shaft cavity 240 on the upper end of the central shaft 201 through a vacuum pipeline, and is connected with the intermediate rod 222 of each rotating lifting rod 220 through the air distribution valve 241 and the air distribution pipeline 242 which are externally connected with the vacuum shaft cavity 240, and finally is connected with the rolling die 230 through the hollow pipe cavity 224 of the intermediate rod 222, the central portion of the rolling die 230 is provided with a through air passage to realize adsorption of the bottle cap.

[0034] The lifting function of the rotating lifting rod 220 is realized by the cylindrical cam 202, the cylindrical surface of the cylindrical cam 202 is provided with a curved groove, the sleeve rod 221 of the rotating lifting rod 220 is provided with a positioning block 250, the end portion of the positioning block 250 is provided with a roller which is embedded in the curved groove of the cylindrical cam 202 and is in rolling connection with the curved groove.

[0035] The discharging assembly 300 comprises a discharging cam 261 arranged below the bottom disc 210, a die ejector rod 262 matched with the discharging cam 261, the bottom portion of the ejector rod 262 is in rolling connection with the discharging cam 261 through the ball 263, the upper portion of the ejector rod 262 is a base which is arranged in the die cavity of the die carrier and is used to support the bottle cap, when the die carrier with the rolling completed bottle cap is rotated to the discharging cam 261, the die ejector rod 262 is lifted by the discharging cam 261, so that the base in the die cavity of the die carrier lifts the bottle cap upward from the die cavity. The discharging assembly 300 can further comprise a blowing nozzle and a discharging guide groove arranged above the discharging cam 261, the blowing nozzle is used to blow the lifted bottle cap to the discharging guide groove.

[0036] The working process of the high-speed rolling machine for the metal internal thread cap of the embodiment is as follows:

[0037] The vacuum machine and the motor are started, the feeding assembly 100 starts feeding, the rotating sleeve 204 of the rolling mechanism 200 drives the whole disc to rotate, the disc drives the carrier mold on the bottom disc 210 and the rotating lifting rod 220 on the guiding positioning disc 211 to rotate synchronously, the rotating lifting rods 220 at different positions produce different lifting actions when cooperating with the cylindrical cam 202, the rotating lifting rod 220 passing through the feeding assembly 100 is under the action of vacuum, the rolling mold 230 at the bottom of the rotating lifting rod 220 places the bottle cap in the corresponding carrier mold under the rotating process, when the rotating lifting rod 220 and the corresponding carrier mold reach the rolling cam 205, the rotating lifting rod 220 descends while rotating, the end rolling mold 230 of the rotating lifting rod 220 penetrates into the mold cavity of the carrier mold and contacts the inner wall of the bottle cap and completes the rotating rolling, at the same time, the outer circular surface of the carrier mold is in extrusion contact with the rolling cam 205 to form rolling friction, and the carrier mold completes self-rotation. The rotating lifting rod 220 completing rolling continues to rotate and slowly rises, when reaching the position of the discharging assembly 300, when the carrier mold with the rolling completed bottle cap rotates to the discharging cam, the base in the mold cavity of the carrier mold is lifted by the discharging cam, the bottle cap in the mold cavity is pushed and moved upward, and finally the bottle cap is blown into the discharging guide groove through the blowing nozzle to complete discharging.

[0038] The utility model is not limited to the above-mentioned implementation. The above description of the specific implementation is intended to describe and explain the technical scheme involved in the utility model. Based on the obvious transformation, replacement or combination of the utility model, it should be considered that it falls within the protection scope of the utility model. The above specific implementation is used to disclose the best implementation method of the utility model, so that ordinary skilled in the art can apply various implementation methods and various alternative methods of the utility model to achieve the purpose of the utility model.

Claims

1. A high speed roll forming machine for metal internal screw thread closures, characterised in that, The rolling cam is fixedly arranged on one side of the disc body; A plurality of groups of rotating lifting rods are arranged on the upper periphery of the disc body, and the ends of the rotating lifting rods are provided with rolling dies; A plurality of groups of load molds are arranged on the lower periphery of the disc body, and the load molds have mold cavities for accommodating bottle caps; The rotating lifting rods are arranged in pairs and have the same number of positions as the load molds; The rolling die is provided with a rolling thread on the outer side, which is used to penetrate into the mold cavity of the load mold and contact the inner wall of the bottle cap; The load mold has an outer circular surface for abutting and fitting with the rolling cam; When the disc body drives a group of rotating lifting rods and load molds to reach the rolling cam, the rotating lifting rods are lowered while rotating, so that the ends of the rotating lifting rods penetrate into the mold cavity of the load mold and contact the inner wall of the bottle cap, and the rotating rolling is completed. At the same time, the outer circular surface of the load mold is in extrusion contact with the rolling cam to form rolling friction, so that the load mold is driven to complete self-rotation.

2. The high-speed rolling machine for metal internal thread caps according to claim 1, wherein The disc body comprises a bottom disc fixed to the rotating sleeve and a guide positioning disc, the bottom disc is provided with a plurality of load molds in the circumferential direction, and the guide positioning disc is arranged in two layers, and the two guide positioning discs are provided with through holes corresponding to each other to accommodate the rotating lifting rods.

3. The high-speed rolling machine for metal internal thread caps according to claim 1, wherein The load mold is installed on the disc body through an elastic element and a sliding block guide rail, when the rolling cam acts on the load mold, the elastic element is compressed and stored energy at the same time, and the rolling cam acting force is combined to strengthen the rolling of the rolling die on the bottle cap, when the rolling cam is separated from the load mold, the elastic element drives the load mold to reset.

4. The high-speed rolling machine for metal internal thread caps according to claim 3, wherein The rotating lifting rod comprises an outer sleeve rod and an intermediate rod, the outer sleeve rod is slidingly installed on the two guide positioning discs of the disc body, the intermediate rod is provided with a rotating gear at the upper side and a rolling die at the lower side; the rotating gear is in meshing transmission with the fixed gear ring arranged on the upper side of the disc body, when the disc body drives the rotating lifting rod to rotate relative to the fixed gear ring, the rotating gear at the upper side of the rotating lifting rod will rotate through the meshing relationship with the fixed gear ring, so as to drive the intermediate rod connected thereto to rotate, and then drive the rolling die at the lower side of the intermediate rod to rotate.

5. The high-speed rolling machine for metal internal thread caps according to claim 4, wherein The intermediate rod of the rotating lifting rod has a hollow cavity, the upper end of the hollow cavity is connected with a vacuum pump through a vacuum pipeline and a gas distribution valve, and the lower end of the hollow cavity is connected with the center through hole of the rolling die, so that the rolling die has the function of adsorbing the bottle cap.

6. The high-speed rolling machine for metal internal thread caps according to claim 5, wherein The lifting function of the rotating lifting rod is realized by the following structure: a cylindrical cam is fixed above the disc body, a curved groove is formed on the cylindrical surface of the cylindrical cam, a positioning block is arranged on the outer sleeve rod of the rotating lifting rod, a roller is arranged at the end of the positioning block, the roller is embedded in the curved groove of the cylindrical cam and is in rolling connection with the curved groove, when the disc body drives the rotating lifting rod to rotate relative to the cylindrical cam, the roller at the end of the positioning block will roll along the groove track of the cylindrical cam, thereby driving the outer sleeve rod of the rotating lifting rod to make up-and-down lifting action.

7. The high speed rolling machine for metal internal screw thread cover as claimed in claim 6, wherein, One side of the disc body is provided with a feeding assembly, the feeding assembly comprises a feeding platform and a pushing disc arranged on the feeding platform, a pushing groove matched with the outer periphery of the bottle cap is formed at the edge of the pushing disc, when the pushing disc rotates, the bottle cap will be pushed to the predetermined position through the pushing groove at the edge of the pushing disc.

8. The high speed rolling machine for metal internal screw thread cover as claimed in claim 7, wherein, The other side of the disc body is provided with a discharging assembly, the discharging assembly comprises a discharging cam arranged on the disc body, a mold ejector matched with the discharging cam, the bottom of the ejector is in rolling connection with the discharging cam through a ball, the top of the ejector is a base seated in the mold cavity of the loading mold for supporting the bottle cap, when the loading mold with the rolled bottle cap rotates to the discharging cam, the ejector is lifted by the discharging cam, thereby making the base in the mold cavity of the loading mold to lift the bottle cap upward from the mold cavity.

9. The high speed rolling machine for metal internal screw thread cover as claimed in claim 8, wherein, The discharging assembly further comprises a blowing nozzle arranged above the discharging cam and a discharging guide groove, the blowing nozzle is used to blow the lifted bottle cap to the discharging guide groove.

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