Die assembly mechanism of upper pulling machine

Abstract

The utility model discloses a die assembly mechanism of an upper pulling machine, which comprises a mechanism base, two oppositely arranged die assembly structures are arranged on the mechanism base, and the die assembly structures are movably matched with the mechanism base; a telescopic driving mechanism is arranged on the outer side of each mold closing structure, the two ends of each telescopic driving mechanism are connected with a first folding arm and a second folding arm respectively, the two ends of each first folding arm are hinged to the corresponding mold closing structure and the mechanism base respectively, and the two ends of each second folding arm are hinged to the corresponding mold closing structure and the mechanism base respectively. The mold closing mechanism of the upper pulling machine is small in size and beneficial to reducing the size of the upper pulling machine.

Description

Technical Field

[0001] The utility model relates to the field of shoe sole lasting machines, in particular to a mold clamping mechanism of the lasting machine. Background Art

[0002] The upper of injection molded shoes is generally first formed on the upper mold, and then the upper mold and the upper are put into the injection molding machine together to injection mold the sole so that the sole and the upper are firmly bonded together. Since a lot of labor is reduced in the production process, the price is affordable, and since no glue is used in the sole molding process, the harm of glue to the human body can be avoided.

[0003] The clamping mechanism of the traditional lasting machine generally uses a hydraulic cylinder as its driving mechanism. However, the telescopic track of the hydraulic cylinder of the traditional clamping structure is parallel to the clamping direction of the mold, and the hydraulic cylinder itself is long, resulting in a large footprint of the clamping mechanism, which brings obstacles to large-scale production. When it is necessary to design a lasting machine that can clamp multiple molds in sequence, the traditional clamping mechanism is not conducive to the miniaturization of the lasting machine, resulting in an increase in manufacturing and transportation costs. Utility Model Content

[0004] The utility model aims to provide a mold clamping mechanism for an upper drawing machine, which has a small volume and is beneficial to reducing the volume of the upper drawing machine.

[0005] To achieve the above-mentioned purpose, the utility model provides a clamping mechanism of a lasting machine, including a mechanism base, on which are provided two relatively arranged clamping structures, which are movably coordinated with the mechanism base; a telescopic driving mechanism is provided on the outer side of each clamping structure, and the two ends of the telescopic driving mechanism are respectively connected to a first folding arm and a second folding arm, and the two ends of the first folding arm are respectively hinged to the clamping structure and the mechanism base, and the two ends of the second folding arm are respectively hinged to the clamping structure and the mechanism base.

[0006] As a further improvement of the utility model, the two opposite sides of the two clamping structures are provided with inwardly concave mold positioning grooves, and a cold water cavity is provided in the clamping structure.

[0007] As a further improvement of the present invention, the first folding arm includes a first connecting rod and a second connecting rod; the telescopic driving mechanism includes a sliding sleeve and a rod body; one end of the first connecting rod, the second connecting rod and the sleeve are hinged, the other end of the first connecting rod is hinged to one side of the mold closing structure, and the other end of the second connecting rod is hinged to the mechanism base.

[0008] As a further improvement of the utility model, the second folding arm includes a third connecting rod and a fourth connecting rod, one end of the third connecting rod, the fourth connecting rod and the rod body are hinged, the other end of the third connecting rod is hinged to one side of the mold closing structure, and the other end of the fourth connecting rod is hinged to the mechanism base.

[0009] As a further improvement of the utility model, the mold clamping structure is slidably connected with a guide rail, and the guide rail is installed on the mechanism base.

[0010] As a further improvement of the present invention, one side of each of the first folding arm and the second folding arm is provided with a rotation limiting structure of the folding arm, and the rotation limiting structure is installed on the mechanism base.

[0011] As a further improvement of the utility model, a travel switch is provided on the mechanism base, the travel switch is located on one side of the telescopic drive mechanism and the two cooperate with each other, and the travel switch and the telescopic drive mechanism are both electrically connected to the controller.

[0012] Beneficial Effects

[0013] Compared with the prior art, the advantages of the clamping mechanism of the lasting machine of the utility model are:

[0014] 1. The two ends of the telescopic drive mechanism are respectively connected with a first folding arm and a second folding arm, the two ends of the first folding arm are respectively hinged with the mold clamping structure and the mechanism base, and the two ends of the second folding arm are respectively hinged with the mold clamping structure and the mechanism base, so that the telescopic direction of the telescopic drive mechanism can be perpendicular to the mold clamping direction of the mold clamping structure and the mold, and a mechanism base with a smaller area can be used. When the mold clamping mechanism is placed in a drawing machine that can sequentially clamp multiple molds, it is beneficial to reduce the overall volume of the drawing machine and reduce manufacturing and transportation costs.

[0015] 2. A cold water cavity is provided inside the mold clamping structure, into which cold water is introduced, in order to cool the mold quickly. The mold clamping structure is made into a concave shape, which can have more contact surface with the mold, improve cooling efficiency, and also play a positioning role.

[0016] 3. Both the first and second folding arms include two connecting rods with the same length. When the telescopic drive mechanism is extended or retracted, it can ensure that the translation speeds of the two ends of the same mold closing structure are the same, making mold opening and closing more stable.

[0017] 4. The guide rail of the mold closing structure can further improve the stability of mold opening and closing.

[0018] 5. The rotation limit structure can prevent the telescopic drive mechanism from exceeding the set stroke when extending.

[0019] 6. The travel switch can prevent the telescopic drive mechanism from exceeding the set travel when shortening.

[0020] The present invention will become more clear through the following description in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a three-dimensional diagram of the mold clamping mechanism of the upper drawing machine;

[0023] Figure 2 A top view of the mold clamping state of the mold clamping mechanism of the lasting machine;

[0024] Figure 3 It is a top view of the mold opening state of the mold clamping mechanism of the upper drawing machine;

[0025] Figure 4 It is a top view of the mold clamping structure and the telescopic drive mechanism. DETAILED DESCRIPTION

[0026] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0027] Example

[0028] The specific implementation of the utility model is as follows Figures 1 to 4 As shown, a clamping mechanism 1 of a lasting machine includes a mechanism base 11, on which two clamping structures 12 arranged opposite to each other are provided, and the clamping structures 12 are movably matched with the mechanism base 11. A telescopic drive mechanism 14 is provided on the outside of each clamping structure 12, and the two ends of the telescopic drive mechanism 14 are respectively connected to a first folding arm 15 and a second folding arm 16, and the two ends of the first folding arm 15 are respectively hinged to the clamping structure 12 and the mechanism base 11, and the two ends of the second folding arm 16 are respectively hinged to the clamping structure 12 and the mechanism base 11. In this embodiment, the telescopic drive mechanism 14 adopts a hydraulic cylinder structure.

[0029] The two opposite sides of the two clamping structures 12 are provided with a concave mold positioning groove 121. A cold water cavity is provided in the clamping structure, and cold water is passed into it to cool the mold quickly. The clamping structure is made into a concave shape, which can have more contact surface with the mold, improve cooling efficiency, and also play a positioning role.

[0030] The first folding arm 15 includes a first connecting rod 151 and a second connecting rod 152. The telescopic driving mechanism 14 includes a sleeve 141 and a rod body 142 that are slidably matched. One end of the first connecting rod 151, the second connecting rod 152, and the sleeve 141 are hinged, the other end of the first connecting rod 151 is hinged to one side of the mold clamping structure 12, and the other end of the second connecting rod 152 is hinged to the mechanism base 11.

[0031] The second folding arm 16 includes a third connecting rod 161 and a fourth connecting rod 162. One end of the third connecting rod 161, the fourth connecting rod 162 and the rod body 142 are hinged, the other end of the third connecting rod 161 is hinged to one side of the mold clamping structure 12, and the other end of the fourth connecting rod 162 is hinged to the mechanism base 11.

[0032] In this embodiment, the first connecting rod 151, the second connecting rod 152, the third connecting rod 161, and the fourth connecting rod 162 have the same length, ensuring that the two mold clamping structures 12 move in a straight line during mold clamping and mold opening. One end of the first connecting rod 151 and the third connecting rod 161 are respectively connected to the two ends of the same side of the same mold clamping structure 12.

[0033] The mold clamping structure 12 is slidably connected with a guide rail 13, and the guide rail 13 is installed on the mechanism base 11. In this embodiment, the guide rails 13 are arranged on both sides of the mold clamping structure 12.

[0034] A rotation limiting structure 18 of the folding arm is provided on one side of the first folding arm 15 and the second folding arm 16, and the rotation limiting structure 18 is installed on the mechanism base 11. When the first connecting rod 151 and the second connecting rod 152, and the third connecting rod 161 and the fourth connecting rod 162 rotate to be substantially parallel, their outer sides contact the rotation limiting structure 18, so that the rotation limiting structure 18 plays a limiting role. At this time, the two clamping structures 12 are in the clamping state, and the distance between them is the smallest.

[0035] A travel switch 17 is provided on the mechanism base 11. The travel switch 17 is located on one side of the telescopic drive mechanism 14 and the two cooperate with each other. The travel switch 17 and the telescopic drive mechanism 14 are both electrically connected to the controller. When the telescopic drive mechanism 14 is retracted to a certain length, the rotation of the connecting rod drives the telescopic drive mechanism 14 to move toward the outer edge of the mechanism base 11 and touch the travel switch 17. The controller receives the signal of the travel switch 17 and stops the telescopic drive mechanism 14 from retracting. At this time, the two clamping structures 12 are in an open mold state, and the distance between the two is the largest.

[0036] The present invention is described above in conjunction with the best embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. A mold clamping mechanism of a lasting machine, comprising a mechanism base (11), characterized in that: Two oppositely arranged clamping structures (12) are provided on the mechanism base (11), and the clamping structures (12) and the mechanism base (11) are movably matched; a telescopic driving mechanism (14) is provided on the outer side of each clamping structure (12), and two ends of the telescopic driving mechanism (14) are respectively connected to a first folding arm (15) and a second folding arm (16); two ends of the first folding arm (15) are respectively hinged to the clamping structure (12) and the mechanism base (11), and two ends of the second folding arm (16) are respectively hinged to the clamping structure (12) and the mechanism base (11).

2. The mold clamping mechanism of the lasting machine according to claim 1, characterized in that: An inwardly concave mold positioning groove (121) is provided on one side opposite to the two mold clamping structures (12), and a cold water cavity is provided inside the mold clamping structure (12).

3. The mold clamping mechanism of the lasting machine according to claim 1, characterized in that: The first folding arm (15) comprises a first connecting rod (151) and a second connecting rod (152); the telescopic driving mechanism (14) comprises a sleeve (141) and a rod body (142) that are slidably matched; one end of the first connecting rod (151), the second connecting rod (152) and the sleeve (141) are hinged to each other, the other end of the first connecting rod (151) is hinged to one side of the mold clamping structure (12), and the other end of the second connecting rod (152) is hinged to the mechanism base (11).

4. The mold clamping mechanism of the lasting machine according to claim 3, characterized in that: The second folding arm (16) comprises a third connecting rod (161) and a fourth connecting rod (162); one end of the third connecting rod (161), the fourth connecting rod (162) and the rod body (142) are hinged to each other; the other end of the third connecting rod (161) is hinged to one side of the mold clamping structure (12); and the other end of the fourth connecting rod (162) is hinged to the mechanism base (11).

5. The mold clamping mechanism of the lasting machine according to claim 1, characterized in that: The mold clamping structure (12) is slidably connected to a guide rail (13), and the guide rail (13) is installed on the mechanism base (11).

6. The mold clamping mechanism of the lasting machine according to claim 1, characterized in that: A folding arm rotation limiting structure (18) is provided on one side of the first folding arm (15) and the second folding arm (16), and the rotation limiting structure (18) is installed on the mechanism base (11).

7. The mold clamping mechanism of the lasting machine according to claim 1, characterized in that: The mechanism base (11) is provided with a travel switch (17), which is located on one side of the telescopic drive mechanism (14) and the two cooperate with each other, and the travel switch (17) and the telescopic drive mechanism (14) are both electrically connected to the controller.

Images