CN205020681U - Jumper bar guide structure of can body make -up machine - Google Patents

Abstract

A punch guide structure for a can body forming machine, comprising a first guide ring assembly (1) sleeved on the body of the punch (4) and fixed relative to the frame of the can body forming machine, characterized in that it also includes a first Two guide ring components (2), the second guide ring component (2) is fixed on the center hole of the front blank holder chamber component (3) of the blank holder mechanism of the can body forming machine, and the shaft of the punch rod (4) Friction and sliding fit, the second guide ring assembly (2) is located on the front side of the first guide ring assembly (1) in the moving direction of the punch (4), and the second guide ring assembly (2) follows the front edge during operation The chamber assembly (3) performs reciprocating motion. The utility model changes the original single-point guidance in the length direction of the punch rod into two-point guidance, greatly increases the precision of the guidance, and enables the guide ring assembly to use a low-cost wear-resistant guide ring to meet the guide precision requirements.

Description

A punch guide structure of a can body forming machine

technical field

The utility model relates to a can body stretching forming device for metal cans, in particular to a punch guide structure of a can body forming machine (also known as a stretching machine).

Background technique

Metal cans, such as pop cans, usually have two types of aluminum and iron, and their structure is composed of two parts: the can body and the lid, and the can body is mostly formed by stretching metal. Can body forming machine, also known as stretching machine, is an important equipment in the production of metal cans, which directly affects the quality of products. Existing can body forming machines usually consist of a tank bottom forming device (mold), a cup inlet mechanism, a can outlet mechanism, an edge pressing mechanism and a punch driving mechanism. Among them, the can body forming device (mold) is used to stretch the can body, the cup inlet mechanism is used to transport the can blank (pre-stretched cup-shaped piece) before stretching, and the can discharge mechanism is used for unloading and output after stretching The can body, while the crimping mechanism is used to press the edge of the can blank when stretching, and the punch driving mechanism is used to provide the stamping stroke when the can body is stretched. The can body forming device is mainly composed of a punch arranged at the front end of the punch, a drawing die and a tank bottom forming mechanism, and the punch driving mechanism is connected to the rear end of the punch to drive the punch to move toward the can body forming device for stamping. The blank holder mechanism is composed of a front blank holder chamber assembly, two blank holder push rods, a blank holder guide ring assembly and a drive transmission mechanism connected with the two blank holder push rods. The center hole of the front blank holder chamber assembly is empty On the punch, there is no contact between the front blank holder chamber assembly and the punch, and the two blank holder push rods are arranged on both sides of the punch parallel to the punch rod, and the two blank holder push rods are opposite to the machine base through the blank holder guide ring assembly Sliding guide connection, so that the blank holder can reciprocate back and forth during work.

In order to ensure the stability of the punch rod, a guide structure must be set on the punch rod. The existing guide structure only includes a guide sleeve that is stationary relative to the machine base. Due to the limited setting space, the axial length of the guide sleeve is also relatively short, so it cannot Fully extended, so the guide precision is not high, only the guide sleeve adopts high-precision hydrostatic bearings to meet the requirements, but the cost is relatively high.

Contents of the invention

The purpose of the utility model is to provide a punch rod guiding structure of a can body forming machine, so as to ensure the guiding precision and reduce the cost.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a punch guide structure of a can body forming machine, including a first guide ring assembly that is sleeved on the body of the punch rod and fixed relative to the frame of the can body forming machine, It is characterized in that it also includes a second guide ring assembly, the second guide ring assembly is fixed on the center hole of the front blank holder chamber assembly of the blank holder mechanism of the can body forming machine, and is frictionally and slidably matched with the punch shaft, In the moving direction of the punch, the second guide ring assembly is located at the front side of the first guide ring assembly, and the second guide ring assembly reciprocates with the front blank holder chamber assembly during operation.

In the above solution, the second guide ring assembly is composed of an annular seat and a wear-resistant ring arranged on the inner edge of the annular seat.

In the above solution, the first guide ring assembly is composed of an annular seat body, a wear-resistant ring and an oil seal provided on the inner edge of the annular seat.

Due to the application of the above-mentioned technical solutions, the utility model has the following advantages compared with the prior art:

Because the utility model skillfully arranges the second guide ring assembly which is guided by the punch rod on the front blank holder chamber assembly of the moving blank holder mechanism, and the second guide ring assembly is separated from the first guide ring assembly by a certain distance, that is, the original punch rod The single-point guidance in the length direction is changed to two-point guidance, which greatly increases the guidance accuracy, so that the guide ring assembly can meet the guidance accuracy requirements by using a low-cost wear-resistant guide ring.

Description of drawings

Fig. 1 is the schematic diagram of the front view of the structure of the embodiment of the utility model;

Fig. 2 is a schematic top view of the structure of the utility model embodiment;

Fig. 3 is a schematic diagram of the full section of the front blankholder chamber assembly of the structure of the embodiment of the present invention;

Fig. 4 is a full cut-away perspective view of the front blankholder chamber assembly of the structure of the embodiment of the present invention;

Fig. 5 is a three-dimensional schematic diagram of an oil separator on a machine base according to an embodiment of the present invention.

In the above drawings: 1. The first guide ring assembly; 11. The annular seat; 12. The wear ring; 13. The oil seal; 2. The second guide ring assembly; 21. The annular seat; 22. The wear ring ;3, front blankholder chamber assembly; 31, support tray; 32, blankholder mold; 33, airbag chamber; 34, airbag; 35, center sleeve; 4, punch rod; Guide ring assembly; 7. Edge pressing push rod.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Embodiment: see Fig. 1～shown in Fig. 5:

A punch guide structure of a can body forming machine, as shown in Figures 1 to 4, includes a first guide ring assembly 1 sleeved on the body of the punch 4 and fixed relative to the base of the can body forming machine, and also includes a The second guide ring assembly 2, the second guide ring assembly 2 is fixed on the central hole of the front blank holder chamber assembly 3 of the blank holder mechanism of the can body forming machine, and is frictionally and slidably matched with the shaft of the punch rod 4, and is placed on the punch rod 4, the second guide ring assembly 2 is located on the front side of the first guide ring assembly 1 apart from each other, and the second guide ring assembly 2 reciprocates with the front blankholder chamber assembly 3 during operation.

Referring to FIGS. 1 to 4 , the second guide ring assembly 2 is composed of an annular seat 21 and a wear ring 22 disposed on the inner edge of the annular seat 21 . The first guide ring assembly 1 is composed of an annular seat 11 , a wear ring 12 and an oil seal 13 arranged on the inner edge of the annular seat 11 .

Referring to Fig. 5, an oil separator 5 is fixed on the base of the can body forming machine, the first guide ring assembly 1 is fixed in the middle of the oil separator 5, and a blanking guide is arranged on both sides. The ring assembly 6, the punch rod passes through the first guide ring assembly 1, and the two blank holder push rods 7 correspond to pass through the blank holder guide ring assembly 6, and the front ends of the blank holder push rods 7 are fixedly connected to the front blank holder chamber assembly 3. As shown in Figure 1, the front blank holder chamber assembly 3 is slidably guided through the cooperation of the blank holder push rod 7 and the blank holder guide ring assembly 6.

3 and 4, the front blankholder assembly 3 includes a support tray 31, a blankholder mold 32, an airbag chamber 33, an airbag 34 and a central sleeve 35, and the second guide ring assembly 2 is fixed by bolts On the rear port of the central sleeve 35.

In this embodiment, the second guide ring assembly 2 guided by the punch rod 4 is cleverly arranged on the front blank holder chamber assembly 3 of the moving blank holder mechanism, and the second guide ring assembly 2 is separated from the first guide ring assembly 1 by a certain distance, That is to say, the single-point guidance in the length direction of the original punch 4 is changed to two-point guidance, which greatly increases the precision of the guidance, so that the low-cost wear-resistant guide ring of the guide ring assembly can meet the guidance precision requirements.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present utility model, and its purpose is to enable those familiar with this technology to understand the content of the present utility model and implement it accordingly, and not to limit the protection scope of the present utility model. All equivalent changes or modifications made according to the spirit of the utility model shall fall within the protection scope of the utility model.

Claims (3)

1. A punch guide structure for a can body forming machine, comprising a first guide ring assembly (1) sleeved on the body of the punch (4) and fixed relative to the base of the can body forming machine, characterized in that: it also includes A second guide ring assembly (2), the second guide ring assembly (2) is fixed on the center hole of the front blank holder chamber assembly (3) of the blank holder mechanism of the can body forming machine, and the punch rod (4) The shaft is friction-sliding, and the second guide ring assembly (2) is located on the front side of the first guide ring assembly (1) in the moving direction of the punch rod (4). When working, the second guide ring assembly (2) moves forward. The blank holder chamber assembly (3) performs reciprocating motion. 2. The punch guide structure of the can body forming machine according to claim 1, characterized in that: the second guide ring assembly (2) consists of an annular base (21) and a ring-shaped base (21) ) The wear ring (22) on the inner edge constitutes. 3. The punch rod guide structure of the can body forming machine according to claim 1, characterized in that: the first guide ring assembly (1) consists of an annular seat (11) and an annular seat (11) Wear ring (12) and oil seal (13) on the inner edge constitute.