Tube drawing machine for jewelry

Abstract

The utility model relates to the technical field of tube drawing machines, in particular to a tube drawing machine for jewelry, which comprises a fixing table and an outer fixing frame arranged on the fixing table, the bottom of the outer fixing frame is fixedly connected to one side of the upper end of the fixing table, and a sliding block is slidably connected to the inside of the outer fixing frame through a sliding groove. An inner fixing frame is arranged in the outer fixing frame, the inner fixing frame is fixedly connected with the outer fixing frame, and an inner fixing device is arranged in the inner fixing frame in a sliding mode. The device has the advantages that the sliding block and the inner fixing device are arranged, the first motor drives and pushes the sliding block to be close to the inner fixing frame, the second motor drives the threaded rod to rotate in the threaded sleeve, so that the threaded sleeve is jacked up to deform, the threaded sleeve jacks up the jacking block to be close to the outer fixing frame, and therefore the precious metal pipe is fixed through internal and external cooperation; the precious metal is prevented from deforming during fixing, and the inner hole in the fixed side can be effectively prevented from deforming in the pulling process of the precious metal.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe drawing machines, in particular to a pipe drawing machine for jewelry. Background Technique

[0002] Jewelry refers to ornaments worn on the head and body. Now it generally refers to sparrow hairpins, earrings, necklaces, rings, bracelets, etc. made of precious metals, gemstones, etc. Jewelry is generally used to decorate the human body, and a pipe drawing machine is a device for pipe drawing of metal jewelry.

[0003] A pipe drawing machine for jewelry disclosed in Chinese Patent CN 215785739 U. In this pipe drawing machine for jewelry, by adjusting the horizontal height of the support rod, the stretching part of the empty pipe can be supported and shaped during the stretching process, reducing the defective rate. By setting the sliding block, the sliding blocks move in opposite directions at the same time, so that the stretching work of the empty pipe can be carried out gently at both ends, ensuring that the thickness of the stretching part of the empty pipe is uniform. However, in such devices, while solving problems, there are the following disadvantages: When fixing precious metals, they need to be fixed through a sleeve. During the fixing process, one end of the precious metal is squeezed and deformed, resulting in waste of some materials. During the pipe drawing process, the force point of the squeezed and fixed end is relatively fixed, resulting in deformation of the inner hole on the side where the precious metal is fixed and uneven thickness. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background technique, and provide a pipe drawing machine for jewelry.

[0005] The purpose of the utility model is achieved through the following technical solutions: A pipe drawing machine for jewelry includes a fixed table and an outer fixing frame arranged on the fixed table. The bottom of the outer fixing frame is fixedly connected to one side of the upper end of the fixed table. A slider is slidably connected to the inside of the outer fixing frame through a sliding groove. An inner fixing frame is arranged inside the outer fixing frame, and the inner fixing frame is fixedly connected to the outer fixing frame. An inner fixing device is slidably arranged inside the inner fixing frame; the inner fixing device includes a threaded sleeve, a threaded rod is threadedly connected inside the threaded sleeve, and the threaded rod is rotatably connected and moved inside the inner fixing device through a rotatably connected threaded short rod.

[0006] Preferably, sliding grooves are opened on the inner wall of the outer fixing frame. A plurality of the sliding grooves are circumferentially arrayed on the inner wall of the outer fixing frame. A slider is slidably clamped in each of the plurality of sliding grooves. One side of each of the plurality of sliders passes through the outer fixing frame, and the plurality of sliders are movably connected to a push rod. One side of the push rod is fixedly connected to a first motor, and the first motor is fixedly connected to the fixed table.

[0007] Preferably, the internal fixing device is connected to the internal fixing frame by a buckle. Through holes are formed in the outer wall of the internal fixing frame, and the internal fixing device is movably clamped inside the through holes. The through holes are linearly and circumferentially arranged on the internal fixing frame.

[0008] Preferably, the internal fixing device further includes a top block. The top block is movably connected inside each of the plurality of through holes. One side of each of the plurality of top blocks is movably connected to the outer wall of the threaded sleeve. One end of the threaded short rod is fixedly connected to a second motor, and the bottom of the second motor is fixedly connected to the fixing table.

[0009] Preferably, the bottom of the fixing table is slidably connected to a workbench, and a positioning and closing device is fixedly connected to one side of the top of the workbench.

[0010] Preferably, a plurality of anti-slip strips are provided on one side of the top of each of the plurality of top blocks close to the outer fixing frame, and one side of the threaded rod is in the shape of a trapezoidal frustum.

[0011] Beneficial effects:

[0012] In this jewelry tube drawing machine, by setting the slider and the internal fixing device, driven by the first motor, the slider is pushed close to the internal fixing frame. The second motor drives the threaded rod to rotate inside the threaded sleeve, so as to jack up the threaded sleeve to deform. The threaded sleeve then jacks up the top block close to the outer fixing frame, so as to fix the precious metal tube from the outside and the inside, avoiding deformation of the precious metal during fixation, thus excessive waste. During the pulling process of the precious metal, it can also effectively prevent deformation of the inner hole on one side of the fixation. Description of the drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a structural schematic diagram of the present invention;

[0015] Figure 2 It is a structural schematic diagram of the tube drawing machine for jewelry of the present invention;

[0016] Figure 3 It is a structural schematic diagram of the present invention in the second state;

[0017] Figure 4 It is a sectional structural schematic diagram of the outer fixing frame of the present invention;

[0018] Figure 5 Schematic cross-sectional structure diagram of the internal fixing frame of the present utility model;

[0019] Figure 6 Schematic exploded cross-sectional structure diagram of the external fixing frame of the present utility model;

[0020] Figure 7 Schematic exploded cross-sectional structure diagram of the internal fixing frame of the present utility model.

[0021] In the figure: 1, fixing table; 2, external fixing frame; 3, short threaded rod; 4, push rod; 5, first motor; 6, workbench; 7, positioning and closing device; 8, internal fixing device; 801, top block; 802, threaded sleeve; 803, threaded rod; 9, through hole; 10, sliding groove; 11, internal fixing frame; 12, second motor; 13, slider. Detailed implementation manners

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] The additional aspects and advantages of the present utility model will be further given in the following description with reference to the drawings, and some will become obvious from the following description, or be understood through the practice of the present utility model.

[0025] Such as Figure 1-7As shown in the figure, a drawing tube machine for jewelry includes a fixed table 1 and an outer fixing frame 2 arranged on the fixed table 1. The bottom of the outer fixing frame 2 is fixedly connected to one side of the upper end of the fixed table 1. A slider 13 is slidably connected inside the outer fixing frame 2 through a sliding groove 10. An inner fixing frame 11 is arranged inside the outer fixing frame 2. The inner fixing frame 11 is fixedly connected to the outer fixing frame 2. An inner fixing device 8 is slidably arranged inside the inner fixing frame 11; the inner fixing device 8 includes a threaded sleeve 802. A threaded rod 803 is threadedly connected inside the threaded sleeve 802. The threaded rod 803 is rotatably connected and moves inside the inner fixing device 8 through a threaded short rod 3. By rotating the threaded rod 803 inside the threaded sleeve 802, the threaded sleeve 802 and the top block 801 are jacked up, so that the top block 801 supports and fixes the inner wall of the precious metal, avoiding deformation of the precious metal during fixation.

[0026] Sliding grooves 10 are opened on the inner wall of the outer fixing frame 2. A plurality of sliding grooves 10 are circumferentially arrayed on the inner wall of the outer fixing frame 2. Sliders 13 are slidably clamped in each of the plurality of sliding grooves 10. One side of each of the plurality of sliders 13 passes through the outer fixing frame 2. The plurality of sliders 13 are movably connected to a push rod 4. One side of the push rod 4 is fixedly connected to a first motor 5. The first motor 5 is fixedly connected to the fixed table 1. By arranging the plurality of sliders 13 to slide in the sliding grooves 10, the outer wall of the precious metal is squeezed and fixed. The cooperation between the slider 13 and the top block 801 fixes the precious metal tube, avoiding deformation of the precious metal during fixation, thus excessive waste. During the pulling process of the precious metal, deformation of the inner hole on the fixed side can also be effectively prevented.

[0027] The inner fixing device 8 is connected to the inner fixing frame 11 by a buckle. Through holes 9 are opened on the outer wall of the inner fixing frame 11. The inner fixing device 8 is movably clamped inside the through holes 9. The through holes 9 are linearly circumferentially arrayed on the inner fixing frame 11.

[0028] The inner fixing device 8 further includes a top block 801. The top block 801 is movably connected in each of the plurality of through holes 9. One side of each of the plurality of top blocks 801 is movably connected to the outer wall of the threaded sleeve 802. One end of the threaded short rod 3 is fixedly connected to a second motor 12. The bottom of the second motor 12 is fixedly connected to the fixed table 1.

[0029] The bottom of the fixed table 1 is slidably connected to a workbench 6. One side of the top of the workbench 6 is fixedly connected to a positioning and closing device 7.

[0030] A plurality of anti-slip strips are provided on the top of each of the plurality of top blocks 801 close to one side of the outer fixing frame 2. One side of the threaded rod 803 is in the shape of a trapezoidal frustum.

[0031] The working process is as follows:

[0032] S1. First, pass one end of the precious metal tube through the positioning and necking device 7 and sleeve it on the inner fixing frame 11, so that one end of the precious metal contacts the inner side of the outer fixing frame 2, and start the first motor 5 and the second motor 12.

[0033] S2. The first motor 5 pushes the push rod 4 to move forward. The push rod 4 pushes multiple sliders 13 to slide in the sliding grooves 10, so that the multiple sliders 13 approach the inner fixing frame 11.

[0034] S3. The second motor 12 drives the short threaded rod 3 to rotate. The rotation of the short threaded rod 3 drives the threaded rod 803 to rotate and move forward in the threaded sleeve 802. Since one end of the threaded rod 803 is in the shape of a trapezoidal frustum, it will jack up the threaded sleeve 802, causing the threaded sleeve 802 to deform. The threaded sleeve 802 jacks up multiple top blocks 801 to approach the outer fixing frame 2. The top blocks 801 and the sliders 13 cooperate to fix the inner wall and the outer wall of the precious metal tube.

[0035] S4. Start the machine, and the motor drives the fixing table 1 to slide on the workbench 6 to draw the precious metal tube.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A jewelry tube drawing machine, characterized in that: It comprises a fixing platform (1) and an external fixing frame (2) arranged on the fixing platform (1), the bottom of the external fixing frame (2) is fixedly connected to one side of the upper end of the fixing platform (1), the interior of the external fixing frame (2) is slidably connected to a sliding block (13) via a sliding groove (10), an internal fixing frame (11) is arranged inside the external fixing frame (2), the internal fixing frame (11) is fixedly connected to the external fixing frame (2), and an internal fixing device (8) is slidably arranged inside the internal fixing frame (11); The internal fixing device (8) comprises a threaded sleeve (802), the internal thread of the threaded sleeve (802) is screwed with a threaded rod (803), and the threaded rod (803) is screwed and moved in the internal fixing device (8) through the screwed short threaded rod (3).

2. A jewelry tube drawing machine according to claim 1, characterized in that: A sliding groove (10) is provided on the inner wall of the external fixing frame (2), and a plurality of the sliding grooves (10) are arranged in a circular array on the inner wall of the external fixing frame (2). Slide blocks (13) are slidably engaged in the plurality of sliding grooves (10), and one side of the plurality of slide blocks (13) passes through the external fixing frame (2). The plurality of slide blocks (13) are movably connected to a push rod (4), and a first motor (5) is fixedly connected to one side of the push rod (4), and the first motor (5) is fixedly connected to the fixing platform (1).

3. The jewelry tube drawing machine according to claim 1, characterized in that: The internal fixing device (8) is connected to the internal fixing frame (11) by means of a buckle, a through hole (9) is provided on the outer wall of the internal fixing frame (11), the internal fixing device (8) is movably buckled inside the through hole (9), and the through holes (9) are arranged in a linear circular array on the internal fixing frame (11).

4. The jewelry tube drawing machine according to claim 3, characterized in that: The internal fixing device (8) also includes a top block (801), and the top blocks (801) are movably connected in the plurality of through holes (9), and one side of the plurality of top blocks (801) is movably connected to the outer wall of the threaded sleeve (802), and one end of the threaded short rod (3) is fixedly connected to the second motor (12), and the bottom of the second motor (12) is fixedly connected to the fixing platform (1).

5. The jewelry tube drawing machine according to claim 1, characterized in that: The bottom of the fixed platform (1) is slidably connected to a workbench (6), and one side of the top of the workbench (6) is fixedly connected to a positioning and closing device (7).

6. The jewelry tube drawing machine according to claim 4, characterized in that: A plurality of raised anti-slip strips are provided on one side of the top of the plurality of top blocks (801) close to the external fixing frame (2), and one side of the threaded rod (803) is in the shape of a trapezoidal frustum.

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