Shoe injection molding machine for producing last injection shoes

Abstract

The utility model discloses an injection molding shoe machine for producing last injection shoes, and solves the problems that a supporting rod affects the operation convenience and reduces the production efficiency after an existing shoe machine adopts two material heads. The device comprises a material injection structure, and a shoe tree fixing device is arranged on the material injection port side of the material injection structure; the shoe tree fixing device comprises a rotating lower disc, and a plurality of shoe mold fixing devices are evenly distributed on the upper circumference of the lower disc. A plurality of length-adjustable and foldable ejector rods are evenly distributed on the circumference of the lower disc, and the ejector rods support and fix shoe trees.

Description

Technical Field

[0001] The utility model relates to the technical field of shoe machine molds, in particular to an injection molding shoe machine for producing last-injected shoes. Background Art

[0002] Traditional shoe machines inject materials around the bottom mold or the middle frame mold of the shoe mold. The appearance of the shoes produced in this way will leave injection hole scars, affecting the appearance and sales.

[0003] The application number is 202121409434.9, and its name is a universal injection head for external and internal injection. It can realize the switching between internal and external injection. However, on the injection molding shoe machine, after switching between internal and external injection, there will be differences in the fixation of the shoe last: when performing external injection, the shoe mold needs to be fixed, and when performing internal injection, the shoe last needs to be fixed. When performing external injection, it is no longer necessary to fix the shoe last, and the support rod used to fix the shoe last will produce partial interference, thereby affecting the operating convenience of subsequent equipment and reducing production efficiency.

[0004] The application number is 202321132151.3, and the name is a shoe machine modification device, which fixes the shoe last through a support frame. At this time, the length of the top rod is fixed. When the shoe last does not need to be supported, it becomes a factor that interferes with the operating space. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an injection molding shoe machine for producing last-molded shoes, which effectively solves the problem that the ejector rod that appears after the current shoe machine adopts a dual-purpose material head affects the convenience of operation and reduces production efficiency.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is: an injection molding shoe machine for producing last-injected shoes, comprising an injection structure, and a shoe last fixing device is arranged on the injection port side of the injection structure;

[0007] The shoe last fixing device comprises a rotating lower disc, and a plurality of shoe mold fixing devices are evenly distributed on the circumference of the lower disc;

[0008] The lower disc is also circumferentially evenly provided with a plurality of push rods with adjustable lengths, and the push rods support and fix the shoe last.

[0009] Preferably, the push rod comprises a hollow first sleeve fixedly connected to the lower disc, the first sleeve is threadedly connected with an extension rod, and the outer end of the extension rod is placed outside the first sleeve and is hinged with a support rod.

[0010] Preferably, the shoe last fixing device comprises an upper disc, and the upper disc is supported and connected with the lower disc via a plurality of connecting rods, and the plurality of connecting rods are evenly distributed in two layers around the circumference.

[0011] Preferably, a plurality of vertically sliding locking plates are provided at the lower end of the upper disc, and the locking plates are in contact with the shoe last to limit the position of the shoe last.

[0012] Preferably, a support plate is fixed between two adjacent connecting rods on the same circumferential side, and the top rod is fixedly connected to the support plate.

[0013] Preferably, a telescopic rod is provided between two adjacent connecting rods of different circumferences, and both ends of the telescopic rod are respectively hinged and fixed to the connecting rod.

[0014] Preferably, the telescopic rod comprises two threaded rods, the two threaded rods are respectively hinged and fixed to the connecting rod, a sleeve is threadedly connected between the two threaded rods, and the threads of the two threaded rods have opposite rotation directions.

[0015] Preferably, the injection structure comprises an extruder, a telescopic support rod is fixed to the lower side of the extruder, and the telescopic support rod supports the dual-purpose material head.

[0016] Preferably, the telescopic support rod comprises a hollow sliding sleeve fixed to the extruder, the internal thread of the sliding sleeve is connected with a support head, the outer end of the support head is placed outside the sliding sleeve, and the support head is in extrusion contact with the dual-purpose material head to support the dual-purpose material head.

[0017] Compared with the prior art, the utility model has the following benefits: 1) A length-adjustable top rod is adopted, which is divided into two sections and can be rotated, so that the length can be quickly adjusted to avoid interference affecting the convenience of operation; 2) A telescopic rod is used to increase the rigidity of the support plate to avoid deformation of the support plate and affect the performance of the equipment; 3) The setting of the telescopic support rod supports the dual-purpose material head and increases the stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a simplified structural diagram of the injection structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the shoe last fixing device of the utility model;

[0021] Figure 4 This is a schematic diagram of a single push rod structure of the utility model;

[0022] In the figure: 1. injection structure; 2. shoe last fixing device; 3. lower disc; 4. push rod; 5. first sleeve; 6. extension rod; 7. support rod; 8. upper disc; 9. connecting rod; 10. locking plate; 11. support plate; 12. telescopic rod; 13. threaded rod; 14. sleeve; 15. sliding sleeve; 16. support head. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work,

[0025] Please refer to Figure 1-4 , an injection molding shoe machine for producing last-molded shoes, is an improvement on the application number 202321339855.8, named as a shoe machine modification device suitable for inner and outer injection shoes. We still use the injection mechanism inside it, and the dual-channel batcher therein can be directly applied to this device, so we will not go into details in this application.

[0026] The first improvement in this device is that the baffle is fixedly connected to the support frame, and the position of the baffle is fixed. In actual operation, if the shoe last no longer needs to be fixed after the injection molding method is changed, it will affect the convenience of operation. For this reason, we use a mandrel 4 with adjustable length, and its specific structure is as follows: the mandrel 4 includes a hollow first sleeve 5 fixedly connected to the support plate 11, and the first sleeve 5 is connected to an extension rod 6. The outer end of the extension rod 6 is placed outside the first sleeve 5 and is hinged with a support rod 7. When the shoe last does not need to be fixedly supported, the support rod 7 is rotated, and the length of the entire mandrel 4 will change rapidly, so that no interference will occur. In this device, we can use the first sleeve 5 and the extension rod 6 to be threadedly connected.

[0027] The second improvement is that when the push rod 4 supports the shoe last, during injection molding, due to collision, the force is transmitted to the support plate 11 through the push rod 4, and there is a risk of deformation of the support plate 11. The deformation of the support plate 11 will affect the normal use of the push rod 4. For this reason, we set a telescopic rod 12, and the two ends of the telescopic rod 12 are respectively connected and fixed to the connecting rod 9, thereby strengthening the overall rigidity of the support plate 11 and increasing the use effect of the equipment.

[0028] The specific structure of the telescopic rod 12 is as follows: the telescopic rod 12 includes two threaded rods 13, the two threaded rods 13 are respectively hinged and fixed to the connecting rod 9, a sleeve 14 is threadedly connected between the two threaded rods 13, and the threads of the two threaded rods 13 are opposite. This structure is one of the more commonly used structures in the telescopic rod 12, so we will not elaborate on it too much.

[0029] The third improvement is that when the single-head straight-through head is switched to a dual-head, the height of the dual-head will increase, and the lower end of the dual-head needs to be supported. Fixed support was used before. When it is switched to bottom injection and side injection, it will occupy part of the space, affecting the convenience of operation. For this reason, we set a telescopic support rod to support the dual-head. The specific structure of the telescopic support rod is as follows: the telescopic support rod includes a hollow sliding sleeve 15 fixed to the extruder, and the internal thread of the sliding sleeve 15 is connected to a support head 16. The outer end of the support head 16 is placed on the outside of the sliding sleeve 15, and the support head 16 is in extrusion contact with the dual-head to support the dual-head. This is also a relatively conventional telescopic length adjustment structure, so we will not go into too much detail.

[0030] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" that may appear should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the term "provided with" that may appear should be understood in a broad sense. For example, the object "provided with" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or an inseparable connection. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. An injection molding shoe machine for producing last-molded shoes, comprising an injection structure (1), characterized in that: A shoe last fixing device (2) is provided on the injection port side of the injection structure (1); The shoe last fixing device (2) comprises a rotating lower disc (3), and a plurality of shoe mold fixing devices are evenly distributed on the circumference of the lower disc (3); The lower disc (3) is also provided with a plurality of foldable push rods (4) with adjustable lengths evenly distributed around its circumference, and the push rods (4) support and fix the shoe last.

2. The shoe injection molding machine for producing lasted shoes according to claim 1, characterized in that: The top rod (4) comprises a hollow first sleeve (5) fixedly connected to a support plate (11), the first sleeve (5) being connected to an extension rod (6), the outer end of the extension rod (6) being placed outside the first sleeve (5) and hinged to a support rod (7).

3. The shoe injection molding machine for producing lasted shoes according to claim 1, characterized in that: The shoe last fixing device (2) comprises an upper disc (8), the upper disc (8) and the lower disc (3) being supported and connected via a plurality of connecting rods (9), the plurality of connecting rods (9) being evenly distributed in two layers around the circumference.

4. The shoe injection molding machine for producing lasted shoes according to claim 3, characterized in that: A plurality of vertically sliding locking plates (10) are arranged at the lower end of the upper disc (8), and the locking plates (10) are in contact with the shoe last to limit the position of the shoe last.

5. The shoe injection molding machine for producing lasted shoes according to claim 3, characterized in that: A support plate (11) is fixed between two adjacent connecting rods (9) on the same circumferential side, and the top rod (4) is fixedly connected to the support plate (11).

6. The shoe injection molding machine for producing lasted shoes according to claim 3, characterized in that: A telescopic rod (12) is provided between two adjacent connecting rods (9) of different circumferences, and both ends of the telescopic rod (12) are respectively hingedly fixed to the connecting rod (9).

7. The shoe injection molding machine for producing lasted shoes according to claim 6, characterized in that: The telescopic rod (12) comprises two threaded rods (13), the two threaded rods (13) are respectively hinged and fixed to the connecting rod (9), a sleeve (14) is threadedly connected between the two threaded rods (13), and the threads of the two threaded rods (13) are in opposite directions.

8. The shoe injection molding machine for producing lasted shoes according to claim 1, characterized in that: The injection structure (1) comprises an extruder, a telescopic support rod is fixed on the lower side of the extruder, and the telescopic support rod supports the dual-purpose material head.

9. The shoe injection molding machine for producing lasted shoes according to claim 8, characterized in that: The telescopic support rod comprises a hollow sliding sleeve (15) fixed to the extruder, the sliding sleeve (15) being internally threadedly connected to a support head (16), the outer end of the support head (16) being disposed outside the sliding sleeve (15), and the support head (16) being in extrusion contact with the dual-purpose material head to support the dual-purpose material head.

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