Adjusting mechanism of rubber ring precision preforming machine head

Abstract

The utility model relates to a rubber ring precision pre-forming machine head adjusting mechanism, which comprises a plurality of adjusting cushion blocks, a plurality of positioning blocks, a plurality of positioning blocks and a plurality of positioning blocks, the adjusting bolt penetrates through the threaded hole of the adjusting cushion block and the straight hole of the machine shell, the end of the adjusting bolt abuts against the outer wall of the adjusting ring, and the position of the adjusting ring is adjusted. The adjusting cushion block is detachably arranged on the machine shell, the threaded hole is formed in the adjusting cushion block, the straight hole is formed in the machine shell, the adjusting bolt is in threaded connection with the threaded hole, and the end of the adjusting bolt penetrates through the straight hole to abut against the adjusting ring, so that only the straight hole is formed in the machine shell, and no stress exists between the adjusting bolt and the machine shell; and when the threaded hole in the adjusting cushion block is damaged, only the adjusting cushion block needs to be replaced, so that the maintenance cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to a rubber ring forming machine, in particular to an adjusting mechanism for a precision preforming head of a rubber ring. Background Art

[0002] In a conventional preforming head, rubber material passes through the gaps between the casing, the distribution comb, the gaps between the distribution comb and the adjusting ring, and the gaps between the core and the die body, and extrudes the rubber strip from the discharge gap.

[0003] In order to ensure the uniformity of the wall thickness of the rubber ring after extrusion, it is necessary to adjust the adjusting ring, adjust the position of the die body, and then adjust the discharge gap between the core and the die body to ensure that the spacing at the discharge gap is consistent.

[0004] During the conventional adjustment of the adjusting ring, four adjusting bolts located at the upper, lower, left, and right positions pass through the corresponding threaded holes in the casing, and the ends of the adjusting bolts abut against the outer wall of the adjusting ring. The position adjustment of the adjusting ring can be realized through the linkage cooperation of the four adjusting bolts.

[0005] However, the adjusting bolts and the threaded holes in the casing are always stressed during frequent adjustment, which will cause the deformation of the threads in the threaded holes. The adjusting bolts can no longer cooperate with the threaded holes in the casing, and the casing needs to be repaired, which is time-consuming and laborious.

[0006] In summary, how to realize the adjustment of the adjusting ring and reduce the damage of the casing has become an urgent problem to be solved by researchers in this field. Content of the Utility Model

[0007] The technical problem to be solved by the utility model is: how to realize the adjustment of the adjusting ring and reduce the damage of the casing.

[0008] To solve the above technical problem, the technical solution adopted by the utility model is as follows:

[0009] The utility model is an adjusting mechanism for a precision preforming head of a rubber ring, including: a casing; a distribution comb, which is arranged in the casing, its side wall is connected with the casing, and its second end has a first internal thread; an adjusting ring, its first end is sleeved and connected with the casing, and its second end has a second external thread; a core, its second end has a first external thread that matches the first internal thread; a die body, its second end has a second internal thread that matches the second external thread; a discharge gap is formed at the first ends of the core and the die body; a plurality of adjusting pads, a threaded hole is arranged in the middle thereof, and they are detachably arranged on the outer wall of the casing along the circumferential direction of the casing; an adjusting bolt, which passes through the threaded hole of the adjusting pad and the straight hole of the casing, and abuts the end against the outer wall of the adjusting ring to adjust the position of the adjusting ring.

[0010] In this solution, through the cooperation of the screw pair, the movement mechanism is connected to the flow dividing comb, the orifice body is connected to the adjusting ring, and the adjusting ring is sleeved and connected between the machine shell. Therefore, there is an adjustment margin between the adjusting ring and the machine shell. The adjusting cushion block is detachably arranged on the machine shell. A threaded hole is opened on the adjusting cushion block, and a straight hole is opened on the machine shell. The adjusting bolt is threadedly connected to the threaded hole, and the end of the adjusting bolt passes through the straight hole and abuts against the adjusting ring. In this way, only a straight hole is opened on the machine shell, and there is no force between the adjusting bolt and the machine shell. When the threaded hole on the adjusting cushion block is damaged, only the adjusting cushion block needs to be replaced, which greatly reduces the maintenance cost.

[0011] To illustrate how the adjusting cushion block is detachably arranged on the machine shell, the present utility model adopts that connection holes are opened on both sides of the adjusting cushion block; a connecting bolt, which passes through the connection hole, detachably connects the adjusting cushion block to the machine shell;

[0012] Threaded holes are opened on both sides of the straight hole. The connecting bolt passes through the connection hole of the adjusting pad ring and is connected to the threaded hole of the machine shell. Since the adjusting cushion block only rotates relative to the threaded hole of the machine shell when it is replaced, the threaded hole on the machine shell is not easily damaged.

[0013] To illustrate how the flow dividing comb is connected to the machine shell, the present utility model adopts that the side wall of the flow dividing comb is connected to the inner wall of the machine shell through a connecting member.

[0014] In order to cut the rubber ring with a cylindrical structure at the outlet into strip-shaped rubber sheets, the present utility model adopts that a plurality of first connection points are circumferentially fixed on the surface of the first end of the movement mechanism; arc-shaped grooves are equally divided on the surface of the first end of the orifice body; a second connection point, which is slidably arranged in the arc-shaped groove and is connected to the first connection point through a cutting wire;

[0015] When the rubber ring discharges through the discharge gap, it will be axially cut by the cutting wire to form rubber strips for subsequent vulcanization in the mold; the width of the rubber strip cutting can be realized by the movement of the second connection point in the arc-shaped groove.

[0016] In order to filter out impurities when the rubber material is fed, the present utility model adopts that a filter screen is arranged at the feed inlet of the machine shell;

[0017] The impurities in the rubber material can be filtered out through the filter screen. The filter screen adopts a stainless steel wire mesh sheet with a specification of 90 - 150 meshes.

[0018] Advantages of the present utility model: The present utility model is an adjusting mechanism for a rubber ring precision preforming head. The adjusting pad is detachably arranged on the machine shell. A threaded hole is opened on the adjusting pad, and a straight hole is opened on the machine shell. The adjusting bolt is threadedly connected to the threaded hole, and the end of the adjusting bolt passes through the straight hole and abuts against the adjusting ring. In this way, only a straight hole is opened on the machine shell, and there is no force between the adjusting bolt and the machine shell. When the threaded hole on the adjusting pad is damaged, only the adjusting pad needs to be replaced, which greatly reduces the maintenance cost. Brief Description of the Drawings

[0019] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0020] Figure 1 is the front view of the present utility model;

[0021] Figure 2 is the cross-sectional view of the present utility model;

[0022] Figure 3 is the structural schematic diagram of the adjusting pad;

[0023] In the figure: 1 - machine shell, 2 - flow divider comb, 21 - first internal thread, 3 - adjusting ring, 31 - second external thread, 4 - core, 41 - first external thread, 5 - orifice body, 51 - second internal thread, 52 - arc groove, 53 - second connection point, 54 - cutting wire, 6 - discharge gap, 7 - adjusting pad, 71 - threaded hole, 72 - connection hole, 73 - connection bolt, 8 - adjusting bolt, 9 - filter screen. Detailed Description of the Specific Embodiment

[0024] The present utility model will now be further described in detail in conjunction with the drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0025] As Figures 1-3 shown, the present utility model is an adjusting mechanism for a rubber ring precision preforming head, including: a machine shell 1; a flow divider comb 2, which is arranged in the machine shell 1, its side wall is connected to the machine shell 1, and its second end has a first internal thread 21; an adjusting ring 3, its first end is sleeved and connected to the machine shell 1, and its second end has a second external thread 31; a core 4, its second end has a first external thread 41 that cooperates with the first internal thread 21; an orifice body 5, its second end has a second internal thread 51 that cooperates with the second external thread 31; the first end of the core 4 and the first end of the orifice body 5 form a discharge gap 6; a plurality of adjusting pads 7, with a threaded hole 71 in the middle, are detachably arranged on the outer wall of the machine shell 1 along the circumferential direction of the machine shell 1; an adjusting bolt 8, which passes through the threaded hole 71 of the adjusting pad 7 and the straight hole of the machine shell 1, and abuts the end against the outer wall of the adjusting ring 3 to adjust the position of the adjusting ring 3;

[0026] In this solution, through the cooperation of the screw pair, the movement mechanism is connected to the flow dividing comb, the orifice body is connected to the adjusting ring, and the adjusting ring is sleeved and connected to the machine shell. Therefore, there is an adjustment margin between the adjusting ring and the machine shell; the adjusting cushion block is detachably arranged on the machine shell, a threaded hole is opened on the adjusting cushion block, a straight hole is opened on the machine shell, the adjusting bolt is threadedly connected to the threaded hole, and the end of the adjusting bolt passes through the straight hole and abuts against the adjusting ring. In this way, only a straight hole is opened on the machine shell, and there is no force between the adjusting bolt and the machine shell. When the threaded hole on the adjusting cushion block is damaged, only the adjusting cushion block needs to be replaced, which greatly reduces the maintenance cost.

[0027] As Figure 3 shown, in order to illustrate how the adjusting cushion block is detachably arranged on the machine shell, the present utility model adopts that connection holes 72 are opened on both sides of the adjusting cushion block 7; a connecting bolt 73, which passes through the connection holes 72, detachably connects the adjusting cushion block 7 to the machine shell 1;

[0028] Threaded holes are opened on both sides of the straight hole, and the connecting bolt passes through the connection hole of the adjusting pad ring and is connected to the threaded hole of the machine shell. Since the adjusting cushion block only rotates relative to the threaded hole of the machine shell when it is replaced, the threaded hole on the machine shell is not easily damaged.

[0029] As Figure 2 shown, in order to illustrate how the flow dividing comb is connected to the machine shell, the present utility model adopts that the side wall of the flow dividing comb 2 is connected to the inner wall of the machine shell 1 through a connecting piece 22.

[0030] As Figure 1 shown, in order to be able to cut a rubber ring with a cylindrical structure at the outlet into strip-shaped rubber sheets, the present utility model adopts that a plurality of first connection points 41 are circumferentially fixed on the surface of the first end of the movement mechanism 4; arc-shaped grooves 52 are equally divided on the surface of the first end of the orifice body 5; a second connection point 53, which is slidably arranged in the arc-shaped grooves 52 and is connected to the first connection points 41 through a cutting wire 54;

[0031] When the rubber ring discharges through the discharge gap, it will be axially cut by the cutting wire to form rubber strips for subsequent vulcanization in a mold; the cutting width of the rubber strips can be realized by the movement of the second connection point in the arc-shaped groove.

[0032] As Figure 2 shown, in order to filter out impurities when the rubber material is fed, the present utility model adopts that a filter screen 9 is arranged at the feed inlet of the machine shell 1;

[0033] The filter screen can filter out the impurities in the rubber material. The filter screen adopts a stainless steel wire mesh sheet with a specification of 90 - 150 meshes.

[0034] Based on the above-mentioned ideal embodiments of the present utility model as inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. The adjusting mechanism of the rubber ring precision preforming headstock is characterized in that Comprising: Housing; Flow dividing comb, which is arranged inside the housing, whose side wall is connected to the housing, and whose second end has a first internal thread; Adjusting ring, whose first end is sleeved and connected to the housing, and whose second end has a second external thread; Movement, whose second end has a first external thread that mates with the first internal thread; Die body, whose second end has a second internal thread that mates with the second external thread; An outlet gap is formed at the first ends of the movement and the die body; A plurality of adjusting pads, having threaded holes in the middle, and are detachably arranged on the outer wall of the housing along the circumferential direction of the housing; Adjusting bolt, which passes through the threaded hole of the adjusting pad and the straight hole of the housing, and abuts against the outer wall of the adjusting ring at its end to adjust the position of the adjusting ring.

2. The rubber ring precision preforming head adjusting mechanism according to claim 1, wherein Connection holes are provided on both sides of the adjusting pad; Connection bolt, which passes through the connection holes to detachably connect the adjusting pad to the housing.

3. The rubber ring precision preforming head adjusting mechanism according to claim 1, characterized in that, The side wall of the flow dividing comb is connected to the inner wall of the housing through a connecting member.

4. The rubber ring precision preforming head adjusting mechanism according to claim 1, characterized in that, A plurality of first connection points are circumferentially fixed on the surface of the first end of the movement; Arc-shaped grooves are equally divided and arranged on the surface of the first end of the die body; Second connection point, which is slidably arranged in the arc-shaped groove and is connected to the first connection point through a cutting wire.

5. The rubber ring precision preforming head adjusting mechanism according to claim 1, characterized in that A filter screen is provided at the feed inlet of the housing.

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