A molding mechanism of a cap making machine

Abstract

The present invention provides a low-energy consumption capping machine molding mechanism, comprising a lifting actuator and a mounting plate, wherein the output end of the lifting actuator is connected to the lower end surface of the mounting plate, and the upper end surface of the mounting plate is provided with a pair of lower die seats, and one lifting actuator lifts two lower die seats to cooperate with the corresponding two upper die seats to realize the production of two bottle caps at a time. Under the condition of the same production capacity, the rising speed of the lifting actuator in the present invention is 1 / 2 times of the original speed, which effectively solves the flash problem caused by the pills jumping upwards when the lifting actuator speeds up, alleviates the high-speed impact on the capping mold, improves the service life, and saves the manufacturing cost at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of a capping machine, and in particular to a capping machine molding mechanism. Background Art

[0002] There are various machines and equipments for manufacturing plastic bottle caps, among which the most commonly used is the mold pressing capping machine. The current mold pressing capping machines all have a pressing die set, which includes a rotating body and a predetermined number of capping dies arranged on the rotating body for compression molding.

[0003] In the prior art, the cap-making mold includes an upper mold base and a lower mold base, and the upper mold base and the lower mold base are mounted on a rotating body and rotate together. Figure 1 As shown, each of the lower mold bases 6 is provided with a corresponding lifting actuator 2' for lifting it up and down, an upper mold surface of the upper mold base is convex, and a lower mold surface of the lower mold base is concave. The lifting actuator 2' only lifts one lower mold base 6 at a time and completes a match with a corresponding upper mold base to prepare only one bottle cap, and its production capacity is relatively low. In order to improve the production capacity, the factory will usually shorten the time for the lifting actuator 2' to lift the lower mold base 6 up and down to ensure the production capacity. However, in this case, shortening the time will inevitably require increasing the lifting speed of the lifting actuator, which will cause the pills placed in the lower mold surface for preparing the bottle cap to jump up when the lower mold base 6 is accelerated to rise. This situation is very likely to cause flash on the cap, and the product qualification rate is reduced. In addition, the mold is very easy to be damaged due to high-speed impact on the upper mold base. Summary of the invention

[0004] In view of the above situation, the present invention provides a molding mechanism for a capping machine, which avoids the flash problem caused by the pills jumping upward when the lifting actuator speeds up, increases the service life of the capping mold, and improves product quality and cost investment.

[0005] To achieve this object, the present invention provides a capping machine molding mechanism, which is used for a molding capping machine, the molding capping machine includes a molding die set, the molding die set includes a rotating body and a predetermined number of capping molds arranged on the rotating body for compression molding, the capping mold includes: an upper mold base, a lower mold base and a molding mechanism arranged below the lower mold base, the molding mechanism drives the lower mold base and the upper mold base to complete mold closing and demolding actions, when the mold is closed, an upper mold surface of the upper mold base and a lower mold surface of the lower mold base cooperate to form a bottle cap cavity, the upper mold base An upper mold cooling channel and a lower mold cooling channel for cooling the bottle cap cavity are respectively provided in the lower mold base, the molding mechanism is a molding mechanism of a cap making machine, which includes: a lifting actuator and a mounting support plate, a lower end surface of the mounting support plate is mounted on the end of an output end of the lifting actuator, and an upper end surface of the mounting support plate is mounted with a pair of the lower mold bases, the lifting actuator lifts a pair of the lower mold bases at a time and simultaneously completes the mold closing and opening actions with the matching pair of upper mold bases, and a water transport channel is provided in the mounting support plate that is respectively connected to the lower mold cooling channel.

[0006] Preferably, the lower mold cooling channel includes a lower mold liquid inlet channel and a lower mold liquid return channel arranged at the bottom of the lower mold base, and the water transport channel includes a liquid inlet water transport channel and a liquid return water transport channel respectively connected to the lower mold liquid inlet channel and the lower mold liquid return channel.

[0007] Furthermore, a sealing ring is provided at the connection between the lower die liquid inlet channel and the lower die liquid return channel of the lower die seat and the liquid inlet water transport channel and the liquid return water transport channel respectively.

[0008] Preferably, the mounting support plate is connected to the output end of the lifting actuator by screws or welding.

[0009] Furthermore, the lifting actuator includes an oil cylinder, an air cylinder or a linear motor.

[0010] Beneficial effects of the present invention:

[0011] The present invention provides a molding mechanism of a cap making machine, comprising a lifting actuator and a mounting plate, wherein an output end of the lifting actuator is connected to the lower end surface of the mounting plate, and the upper end surface of the mounting plate is installed with two or more lower mold seats, so that when one lifting actuator lifts the mounting plate, two or more lower mold seats can be matched with the corresponding upper mold seats at one time, so as to produce two or more bottle caps at one time. Compared with the prior art, under the condition of the same production capacity, the rising speed of the lifting actuator in the present invention is 1 / 2 times of the original one, which effectively solves the flash problem caused by the pills jumping up when the lifting actuator speeds up, improves the product quality, and thus greatly alleviates the high-speed impact on the cap making mold, ensuring that the cap making mold has a long service life. At the same time, it saves half of the lifting actuator, thereby saving the manufacturing cost and making the entire molding capping machine structure design more reasonable and compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a cap making mold mechanism in the prior art;

[0013] Figure 2 It is a structural schematic diagram of a molding mechanism of a cap making machine provided by an embodiment of the present invention;

[0014] Figure 3 yes Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0015] In the figure: 1-liquid inlet nozzle, 2, 2'-lifting actuator, 3-hollow guide shaft, 3a-water transport gap, 3b-return liquid outlet, 4-output end, 4'-piston rod, 5-mounting support plate, 5'-water transport channel, 5a-upper end surface, 5b-lower end surface, 5c-liquid inlet water transport channel, 5d-return liquid transport channel, 6-lower mold base, 7-hollow tube, 7a-inner cavity, 61-lower mold surface, 62-lower mold return liquid channel, 63-lower mold liquid inlet channel, 64-sealing ring. DETAILED DESCRIPTION

[0016] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] In the description of the present invention, it is necessary to understand that the terms "up", "down", "left", "right", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing 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 should not be understood as limiting the scope of the present invention.

[0018] Example

[0019] See below Figure 2 and Figure 3 The present embodiment provides a capping machine molding mechanism, which is used for a molding capping machine, wherein the molding capping machine includes a molding die set, which includes a rotating body (not shown) and a predetermined number of capping molds arranged on the rotating body (not shown) for compression molding, wherein the capping mold includes: an upper mold base (not shown), a lower mold base 6, and a molding mechanism arranged below the lower mold base 6, wherein the molding mechanism drives the lower mold base 6 and the upper mold base (not shown) to complete mold closing and demolding actions, and when the mold is closed, the upper mold base (not shown) An upper mold surface (not shown) of the upper mold base 6 and a lower mold surface 61 of the lower mold base 6 cooperate to form a bottle cap cavity (not shown), the upper mold surface (not shown) is a convex surface, and the lower mold surface 61 is a concave surface, and an upper mold cooling channel (not shown) and a lower mold cooling channel for cooling the bottle cap cavity are respectively provided in the upper mold base (not shown) and the lower mold base 6, wherein the lower mold cooling channel includes a lower mold liquid inlet channel 63 and a lower mold liquid return channel 62 arranged at the bottom of the lower mold base 6, and the molding mechanism is a molding mechanism of a cap making machine.

[0020] The molding mechanism of the capping machine includes: a lifting actuator 2 and a mounting support plate 5, a lower end surface 5b of the mounting support plate 5 is connected to the end of an output end 4 of the lifting actuator 2 by screw connection or welding, and an upper end surface 5a of the mounting support plate 5 is installed with at least two lower mold seats 6, which are designed as a pair of lower mold seats 6 in this embodiment, so that the lifting actuator can lift a pair of lower mold seats 6 and a corresponding pair of upper mold seats (not shown) at a time to complete the mold closing and mold opening actions, that is, to produce two bottle caps at a time, and a water transport channel is provided in the mounting support plate 5, which is respectively connected to the lower mold cooling channels of the two lower mold seats 6. , wherein the water transport channel includes a liquid inlet water transport channel 5c and a liquid return water transport channel 5d which are respectively connected to the lower mold liquid inlet channel 63 and the lower mold liquid return channel 62, and the lower end surface 5b of the mounting support plate 5 is also provided with a pair of water transport components. In this embodiment, the pair of water transport components are symmetrically arranged on both sides of the lifting actuator 2, and the pair of water transport components pass through a mounting frame (not shown) on the rotating body (not shown) and are clearance-matched with it. A matching bearing or linear bearing is provided at the matching position, and the pair of water transport components is used to limit the circumferential movement of the mounting support plate 5 which reciprocates up and down, that is, to maintain accurate matching with the upper mold base (not shown).

[0021] Among them, the pair of water transport components each include a hollow tube 7 and a hollow guide shaft 3 sleeved on the outside of the hollow tube 7, the inner cavity 7a of the hollow tube 7 is connected to the liquid inlet water transport channel 5c opened in the mounting support plate 5, a water transport gap 3a formed between the outer wall of the hollow tube 7 and the inner wall of the hollow guide shaft 3 is connected to the return liquid water transport channel opened in the mounting support plate 5, and a sealing ring 64 is provided on the lower mold base 6 at the connection between the lower mold liquid inlet channel 63 and the lower mold return liquid channel 62 and the liquid inlet water transport channel 5c and the return liquid water transport channel 5d.

[0022] Furthermore, the end of the hollow guide shaft 3 away from the mounting support plate 5 is provided with a liquid inlet nozzle 1 connected to the inner cavity 7a of the hollow tube 7, and the outer wall of the hollow guide shaft 3 close to the liquid inlet nozzle 1 is provided with a liquid return outlet 3b. The lifting actuator 2 includes an oil cylinder, an air cylinder or a linear motor. In this embodiment, an oil cylinder is selected as the lifting actuator 2, and its output end 4 is the piston rod of the oil cylinder. The mounting support plate 5 is fixedly connected to the piston rod of the oil cylinder by screws, and of course, it can also be welded.

[0023] Combined with the accompanying drawings, the present embodiment provides a capping machine molding mechanism, the upper end surface 5a of the mounting support plate 5 is installed with two or more lower mold seats 6, therefore, compared with the prior art, the present embodiment realizes that when one lifting actuator 2 lifts the mounting support plate 5, two lower mold seats 6 can be matched with one-to-one corresponding upper mold seats (not shown) at a time, that is, two bottle caps can be produced at a time. Compared with the prior art, under the same production capacity, the rising speed of the lifting actuator 2 in the present invention is 1 / 2 times of the original. For example: N capping molds are provided on the film pressing capping machine;

[0024] In such Figure 1 In the prior art, N capping molds correspond to N lifting actuators 2', and each lifting actuator 2' drives a lower mold base 6 to move. It is assumed that it takes time T for the film pressing capping machine to drive the capping mold to rotate one circle to produce a bottle cap, and the lifting speed of each lifting actuator 2' is S.

[0025] In this embodiment, N of the cap-making molds correspond to N / 2 lifting actuators 2, and each lifting actuator 2 drives the two lower mold bases 6 to move. The time required for the film pressing cap-making machine to drive the cap-making mold to rotate one circle to produce two bottle caps is T, and the time for one bottle cap is T / 2. Therefore, the lifting speed of each lifting actuator 2 is reduced to S / 2, which can meet the same production capacity.

[0026] Therefore, this embodiment also effectively solves the flash problem caused by the pill jumping upward when the lifting actuator 2 is accelerated, thereby greatly alleviating the high-speed impact on the cap-making mold and ensuring that the cap-making mold has a longer service life. At the same time, it saves half of the lifting actuator 2, saves manufacturing costs, and makes the structural design of the entire molding capping machine more reasonable and compact.

[0027] Further, this embodiment is compared with Figure 1 The prior art provided sets the water transport channel 5' in the piston rod 4'. This design causes the outer wall of the piston rod 4' to contact with the air to generate a large amount of condensed water. The condensed water drips onto the equipment during the reciprocating motion of the piston rod 4' and corrodes the equipment, thus posing a safety hazard. Figure 2 and Figure 3 As shown, in this embodiment, the water transport components are arranged on both sides of the lifting actuator 2 to avoid the heat generated by friction from interfering with the cooling water in the water transport components, thereby improving the cooling effect and efficiency, and further shortening the cooling time, effectively shortening the high-speed rotary capping time of the film pressing and capping machine, thereby improving production capacity and ensuring the quality of the products produced at the same time.

[0028] The above description is only a specific embodiment of the present invention, but those skilled in the art should understand that this is only an example, and the protection scope of the present invention is defined by the appended claims. Therefore, equivalent changes made to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. A capping machine molding mechanism, used for a capping machine, the capping machine comprising a molding die set, the molding die set comprising a rotating body and a predetermined number of capping dies arranged on the rotating body for compression molding, the capping dies comprising: An upper mold base, a lower mold base and a molding mechanism arranged below the lower mold base, wherein the molding mechanism drives the lower mold base and the upper mold base to complete mold closing and demolding actions. When the mold is closed, an upper model surface of the upper mold base and a lower model surface of the lower mold base cooperate to form a bottle cap cavity, and an upper mold cooling flow channel and a lower mold cooling flow channel for cooling the bottle cap cavity are respectively provided in the upper mold base and the lower mold base, characterized in that the molding mechanism is a molding mechanism of a cap making machine, which comprises: a lifting actuator and a mounting support plate, a lower end surface of the mounting support plate is mounted on the end of an output end of the lifting actuator, and an upper end surface of the mounting support plate is mounted with a pair of the lower mold bases, the lifting actuator lifts a pair of the lower mold bases at a time and simultaneously completes mold closing and opening actions with a matching pair of the upper mold bases, and a water transport flow channel is provided in the mounting support plate that is respectively connected with the lower mold cooling flow channel.

2. The molding mechanism of the cap making machine according to claim 1, characterized in that: The lower mold cooling channel includes a lower mold liquid inlet channel and a lower mold liquid return channel arranged at the bottom of the lower mold base, and the water transport channel includes a liquid inlet water transport channel and a liquid return water transport channel respectively connected to the lower mold liquid inlet channel and the lower mold liquid return channel.

3. The molding mechanism of the cap making machine according to claim 2, characterized in that: A sealing ring is provided at the connection between the lower die liquid inlet flow channel and the lower die liquid return flow channel of the lower die seat and the liquid inlet water transport flow channel and the liquid return water transport flow channel respectively.

4. The molding mechanism of the cap making machine according to claim 1, characterized in that: The mounting support plate is connected to the output end of the lifting actuator by screws or welding.

5. The molding mechanism of the cap making machine according to any one of claims 1 to 4, characterized in that: The lifting actuator includes an oil cylinder, an air cylinder or a linear motor.

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