Adjustable control arm

Abstract

The utility model discloses an adjustable control arm which is characterized in that the control arm is provided with a first section fixed on a packaging machine and a second end used for being connected with a packaging clamp, and the second end is specifically fixed with the packaging clamp through a rotating joint arranged at the bottom. The top of the second end is further provided with a guide wheel set used for assisting in controlling the swing amplitude of the control arm. The replaceable compensating plate is arranged between the guide wheels, a gap is adjusted to adapt to the abrasion condition, and the service life of the control arm is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment, and in particular to an adjustable control arm. Background Technology

[0002] As a key transmission component connecting the packaging machine body and the clamps, the performance of the control arm directly affects the accuracy of the clamps' movement trajectory. Since multiple control arms typically work in coordinated groups, they are prone to asynchrony due to daily wear and tear, affecting the precision of packaging operations. This is especially true for their guide roller assemblies, which are highly susceptible to wear under prolonged rotational loads. Traditional structural designs often require replacing the entire guide roller assembly, significantly increasing maintenance costs and extending equipment downtime. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the purpose of this utility model is to provide an adjustable control arm to improve the life of the control arm.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An adjustable control arm has a first section fixed to a packaging machine and a second end for connection to a packaging fixture. The second end is specifically fixed to the packaging fixture via a rotating joint located at the bottom. A guide wheel assembly is also provided at the top of the second end to assist in controlling the swing amplitude of the control arm.

[0006] In a preferred embodiment of the present invention, the guide wheel assembly includes a pair of rollers rotatably mounted on a first shaft, and a guide sleeve is fitted around the outer periphery of the pair of rollers.

[0007] In a preferred embodiment of the present invention, at least one compensation plate is provided between the pair of rollers.

[0008] In a preferred embodiment of this utility model, the thickness of the compensation sheet is any one of 2mm, 4mm and 5mm.

[0009] In a preferred embodiment of the present invention, the first shaft is located at the top of the second end and extends upward.

[0010] In a preferred embodiment of the present invention, the rotating joint rotates through a second shaft disposed in a transverse hole at the bottom of the second end. A fixing pin for connecting with the packaging clamp passes through the second shaft. The fixing pin is perpendicular to the axis of the second shaft. The virtual plane formed by the pin during rotation is the swing surface of the control arm.

[0011] In a preferred embodiment of the present invention, the rotational capability of the rotating joint is achieved by a bearing disposed in the transverse hole, and the second shaft engages with the inner ring of the bearing.

[0012] The beneficial effects of this utility model are as follows:

[0013] The present invention provides an adjustable control arm, which extends the service life of the control arm by setting a replaceable compensation plate between the guide wheels to adjust the gap to adapt to wear conditions. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 yes Figure 1 A sectional view.

[0017] Figure 3 This is an exploded sectional view of the guide wheel assembly.

[0018] Figure 4 This is a sectional view of the rotating joint. Detailed Implementation

[0019] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. The above description is for the purpose of simplifying the description of this utility model and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0020] Unless otherwise specified, the singular forms “a,” “the,” and “the” used in this specification include the plural forms. The terms “comprising,” “including,” and “containing” used in this specification indicate the presence of the claimed feature but do not exclude the presence of one or more other features. The term “and / or” used in this specification includes any and all combinations of one or more of the relevant listed items.

[0021] In the specification, when an element is described as being "on," "fixed" to, "connected" to, or "joined" to another element, the element may be directly located on, fixed to, connected to, joined to, or in contact with the other element, or there may be an intermediate element present. In the specification, the description of a feature being arranged "adjacent" to another feature may refer to a feature having a portion that overlaps with the adjacent feature or a portion located above or below the adjacent feature.

[0022] It is understood that although the terms "first," "second," etc., may be used herein to describe different elements, these elements should not be limited by these terms. These terms are merely used to distinguish one element from another. Therefore, a first element may be referred to as a second element without departing from the teachings of this application.

[0023] Exemplary embodiments of this application will now be described with reference to the accompanying drawings. However, it should be understood that this application can be presented in many different ways and is not limited to the embodiments described below. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide further additional embodiments. Throughout the drawings, the same reference numerals denote the same or functionally identical elements.

[0024] Figure 1 and Figure 2 The overall structure of this adjustable control arm is shown. The first end 11 of the control arm 10 is fixedly connected to the packaging machine, and the second end 12 is connected to the packaging machine clamp (not shown in the figure). The second end 12 and the clamp are rotatable. A rotating joint 20 is provided at the bottom 14 to allow the packaging machine to adapt to changes in the clamp position when the control clamp moves downward. An upwardly extending guide assembly 30 is provided at the top 13 of the second end 12. Considering that multiple control arms 10 are used in combination and connected to the clamp from multiple points, a stabilizing member (not shown in the figure) is provided on its upper part. The control arms 10 are connected to the stabilizing member through the guide wheel assembly 30 to achieve stable and synchronous operation of multiple control arms 10.

[0025] Reference Figure 3The guide wheel assembly 30 consists of at least one pair of guide wheels 30a sleeved on the first shaft 33. The guide wheels 30a are rotatably arranged on the outer periphery of the first shaft 33 via bearings 32, and a compensation plate 34 is provided between the guide wheels 30a. The first shaft 33 is fixed at the top 13 position of the second end 12 and extends upward. A guide sleeve 35 that connects with the stabilizing member is sleeved on the outer periphery of the pair of guide wheels 30a, thereby enabling the guide wheels 30a to work synchronously. Considering that multiple control arms 10 work in coordination with the stabilizing member through the guide wheel assembly 30, and since the guide wheels 30a are consumable parts, they are prone to wear under long-term force rotation. Therefore, by providing compensation plates 34 between the guide wheels 30a, the gap between adjacent guide wheels 30a is changed to adjust the matching degree, avoiding the need to replace the entire guide wheel assembly 30 after wear occurs. Preferably, the thickness of the compensation plate 34 can be selected from any one of 2mm, 4mm, and 5mm.

[0026] Reference Figure 4 A pair of holes 15 are provided at the bottom 14, and a rotating joint 20 is rotatably arranged between the holes 15. Specifically, the rotating joint 20 includes a second shaft 22 that can rotate within the holes 15 and a pin 23 passing through the second shaft 22 for fixing to the clamp. The second shaft 22 is connected to the holes 15 via bearings 21 at both ends. The pin 23 is perpendicular to the axis of the second shaft 22, and the virtual plane swept by the pin 23 when rotating is the swing surface of the control arm 10.

Claims

1. An adjustable control arm, characterized in that, The control arm has a first section fixed on a packaging machine and a second end for connecting with a packaging clamp, the second end is fixed with the packaging clamp through a rotating joint arranged at the bottom, and a guide wheel set for assisting in controlling the swing range of the control arm is arranged at the top of the second end.

2. An adjustable control arm as claimed in claim 1, wherein, The guide wheel set includes a pair of rollers rotatably arranged on a first shaft, and a guide sleeve is arranged on the outer periphery of the pair of rollers.

3. An adjustable control arm as claimed in claim 2, wherein, At least one compensation sheet is arranged between the pair of rollers.

4. An adjustable control arm as claimed in claim 3, wherein, The thickness of the compensation sheet is any one of 2 mm, 4 mm and 5 mm.

5. An adjustable control arm as defined in claim 2 wherein, The first shaft is arranged at the top of the second end and extends upward.

6. An adjustable control arm as defined in claim 1, wherein, The rotating joint is a second shaft rotatably arranged in a horizontal hole at the bottom of the second end, a fixing pin for connecting with the packaging clamp is arranged on the upper portion of the second shaft, the fixing pin is perpendicular to the second shaft in the axial direction, and a virtual plane formed by the fixing pin during rotation is a swing plane of the control arm.

7. An adjustable control arm as claimed in claim 6, wherein, The rotating ability of the rotating joint is realized through a bearing arranged in the horizontal hole, and the second shaft is engaged with the inner ring of the bearing.

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