CS211191B1 - Device for clamping components in bulk coating - Google Patents

Abstract

The device consists of a holder (6) and the respective tension springs (3) with a rod-shaped reinforcement (7). Components (1) are clamped in the gaps between the individual springs (3), while the end eyes (4, 8) of the spring (3) are bent out of the plane of the spring axis (3). A rod-shaped reinforcement (7) is inserted into the inner space of the tension spring (3), one end (9) of which is inserted into the hole (9) on one side of the groove (6) and the opposite end is bent into the thread (9) on one side of the holder (6) and the opposite end is bent and inserted into the outermost active thread of the tension spring (3) and the spring is then caught on the opposite side of the holder (6) by the adjacent eye (4) - see Fig. 1.

Description

BACKGROUND OF THE INVENTION The present invention relates to a device for clamping components during mass coating, whereby a rigid and technologically advantageous arrangement of the components in the gaps of the tension springs, which do not apply, is achieved.

For bulk application of coatings on components, for example in galvanic or chemical metallization, the use of tension springs is also used to suspend components in the bath. In particular, flat components are inserted into the gaps between the individual threads of the tensioned tension springs, which are elastically clamped by the threads when the tension spring is released. These springs with clamped components are suspended on the hooks of the holder and, with the holder so adapted, undergoes a technological coating process.

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The basic drawback of said clamping method is due in particular to the fact that the springs loaded by the clamped components are bent, the components then being arranged in a fan-like manner and thus move away from the technologically optimal position. This drawback is further exacerbated by the fact that the deposited layer also grows on tension springs, the length of which increases over time and with a constant distance of the suspension hooks on the holder, there is an irregular, broad and propeller collapsing of the bundle of spring clamped components.

This collapse causes most of the components to be technologically unsuitable? horizontal position, thus enabling undesirable deposition of impurities and fumes of the technological process on the main surfaces of components and at the same time irregular course of application of the surface layer occurs. Another drawback of this method of clamping the components is that when the bundles collapse, the components come into contact with each other, leading to a poor technological process. A complex consequence of these disadvantages is a deteriorated coating quality and an increased incidence of rejects. It is an object of the present invention to remove, possibly. alleviating these shortcomings by simple technical means, thereby ensuring favorable economics and improving quality.

These drawbacks are overcome by the solution of the device for clamping of components in the mass application of coatings, which consists of a holder carrying tension springs with eyelets, in which the gaps between the individual threads clamp the components according to the invention. a plane of the longitudinal axis of the spring, in which a sliding stiffener is inserted into the inner space of the coil tension spring with respect to the components, one end of which is supported in an eye formed on one side of the holder, the other end of the stiffener is bent and an extreme active thread at the opposite eye of the tension spring when the opposite end eye is the tension spring suspended from a hook located on the other side of the holder.

One of the advantages of the solution according to the invention is achieved by simple means of rigidly placing the components in the gaps between the coil springs. Another advantage is the bearing of these springs without increasing sagging and thus also eliminating the mutual contact of the components during the fan-shaped collapse of the springs. In summary, the process of the invention provides a coating process with high quality and labor productivity and low rejectability.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an exemplary embodiment of clamping the components between the coils of the tension spring and mounting the spring with the components on the holder of the invention; and FIG. 2 is a side view of the component clamped between the coils of the spring.

The components 1 are clamped between the individual threads 3 of the tension spring 2, which is hinged on the hook 2 of the holder 6 by one bent end eye A. In the inner space, limited by the threads 2 of the tension spring. This stiffener 2 is threaded through its one end through the bent opposite end eye 8 of the tension spring J and is further received in the eye 2 of the holder 6.

The tension spring 20 s slightly extends between and between the workpieces before the workpiece 2 is clamped by a suitable device

After releasing the tension of the tension spring g and inserting the reinforcement X into the interior of the spring, a rigid, compact and unsealed component bundle is formed. This bundle is inserted with one end of the reinforcement X into the eye g of the holder g, the end eye 6 of the spring g is hung on the hook g of the holder and goes along with it through the technological process. The eye g and the hook g are located on the holder 6 in a position determined by the pitch of the tension spring threads g, the shape of the clamped parts 6 and the technological requirements. In essence, the mounting of the component bundles on the springs is predominantly in a position different from the horizontal, which makes it possible to achieve the optimum technological position of the components for coating.

Claims (1)

A device for clamping components in the case of mass coating comprising a holder in which tension springs are suspended, in which gaps are clamped between the individual threads, characterized in that the two end eyes (4, 8) of the tension spring (3) are bent out of the plane of the longitudinal axis of the spring, the inner space of the tension spring (3) formed by the thread (2) with respect to the components (1) bearing a sliding stiffener (7), one end of which is threaded through one end eye (8) of the tension spring; at the same time it is received in an eye (9) located on one side of the holder (6), while the opposite end of the reinforcement (7) is bent and is bent by this bent end into the outer active thread (10) at the opposite end eye (4) of the tension spring (3) ) when the opposite end eye (4) is the tension spring (3) suspended on a hook (5) located on the other side of the holder (6).