Shaping mold for rear upper of shoe sleeved with upper
By designing a mold for shaping the heel counter of overlock shoes, and utilizing a trapezoidal structure and beveled surface to abut the heel counter, the problem of heel counter shrinkage during heat setting is solved, achieving stability in shoe quality and appearance. The process is convenient and damage-free.
Patent Information
- Application Number
- CN202422591571.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-10-25
Smart Images

Figure CN223640259U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of shoemaking technology, specifically relating to a mold for shaping the back of a shoe upper. Background Technology
[0002] The manufacturing process of overlock shoes generally includes: upper assembly, last assembly, heat setting, sole gluing, and lasting. Upper assembly refers to the process of aligning and sewing the midsole fabric with the upper; last assembly refers to the process of fitting the upper onto the last; heat setting refers to heating and shaping the upper surface fitted onto the last; sole gluing refers to applying glue to the upper and outsole; and lasting refers to cooling and shaping the shoe after the upper has been shaped.
[0003] Heat setting is crucial in the entire manufacturing process. The quality of the shoe upper setting in the heat setting machine greatly affects the overall shoe production speed and product quality. When overheating shoes, the back upper and the inside of the shoe will shrink and become narrower and tighter. After subsequent cold setting and lasting processes, the back upper shrinks even tighter, which greatly affects the overall quality and appearance of the shoe.
[0004] Therefore, the technical problem to be solved by this utility model is: how to prevent the heel of the shoe from shrinking during overheating and shaping, so as to maintain the standard process state of the product. Utility Model Content
[0005] To address the technical problem of preventing shrinkage of the heel counter during overheating and shaping of shoes, thus maintaining the standard manufacturing process of the product, this utility model provides a molding die for shaping the heel counter of overlock shoes.
[0006] The specific plan is as follows:
[0007] A molding die for shaping the heel counter of a shoe includes a shoe last, a molding die movably connected to the shoe last, and a beveled surface on the molding die for abutting the heel counter of the shoe.
[0008] The shaping mold is a trapezoidal body, including an upper plane and a lower plane that are parallel to each other. The upper plane and the lower plane have the same width, and the length of the upper plane is greater than the length of the lower plane. The upper plane and the lower plane are perpendicularly connected on three sides, and the other side is obliquely connected, so that the shaping mold has two trapezoidal sides and one oblique cut surface.
[0009] The shaping mold is provided with a position fixing hole. The opening of the position fixing hole is located on the side of the upper plane away from the inclined surface, and the position fixing hole penetrates the shaping mold vertically.
[0010] The shaping mold is a right-angled trapezoidal body made of stainless steel with a thickness of 4-6mm, an upper surface length of 25-30mm, a lower surface length of 20-25mm, and the upper and lower surfaces have the same width of 13-15mm.
[0011] The positioning hole is a cylindrical hole with a diameter of 3-5mm and a height of 4-6mm, and has internal threads that mate with the fixing self-tapping screw to connect the shaping mold and the shoe last.
[0012] The beneficial effects of this utility model are as follows:
[0013] This utility model provides a molding die for shaping the heel counter of a shoe. When heat-setting the shoe, the molding die is used to press and fix the heel counter outward to shape it, so that the heel counter will not shrink or deform during the heat-setting process, thus improving the quality of the shoe. The molding die is smooth, simple in structure, and easy to use. Attached Figure Description
[0014] Figure 1 This is a three-dimensional view of the molding die for this utility model.
[0015] Figure 2 This is a top view of the molding die of this utility model.
[0016] Figure 3 This is a schematic diagram illustrating the process of using the shaping mold of this utility model.
[0017] Figure 4 This is a schematic diagram of the second step in the use of the shaping mold of this utility model.
[0018] Shaping mold 1, upper surface 11, lower surface 12, positioning fixing hole 2, fixing self-tapping screw 3, shoe last 4, shoe back 5 Detailed Implementation
[0019] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the implementation of this utility model, not all of it. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0020] like Figure 1-4 As shown, this utility model provides a shaping mold for the back of a shoe upper, including a shoe last 4, a shaping mold 1 movably connected to the shoe last 4, and a beveled surface provided on the shaping mold 1 for abutting the back of the shoe upper 5.
[0021] This utility model provides a molding die for shaping the heel counter of a shoe. When heat-setting the shoe, the molding die is used to press and fix the heel counter outward to shape it, so that the heel counter will not shrink or deform during the heat-setting process, thus improving the quality of the shoe. The molding die is smooth, simple in structure, and easy to use.
[0022] The shaping mold 1 is a trapezoidal body, including an upper plane 11 and a lower plane 12 that are parallel to each other. The upper plane 11 and the lower plane 12 have the same width, and the length of the upper plane 11 is greater than the length of the lower plane 12. The upper plane 11 and the lower plane 12 are perpendicularly connected on three sides and obliquely connected on the other side, so that the shaping mold 1 has two trapezoidal side surfaces and one oblique cut surface.
[0023] The oblique connection refers to the fact that the length of the upper plane 11 is greater than the length of the lower plane 12, so that the side of the upper plane 11 is inclined downward at a certain angle to connect to the lower plane 12, forming an oblique cut surface.
[0024] The shaping mold 1 is provided with a position fixing hole 2. The opening of the position fixing hole 2 is located on the side of the upper plane 11 away from the oblique cut surface, and the position fixing hole 2 penetrates the shaping mold 1 vertically.
[0025] like Figure 1 and Figure 2 As shown, the shaping mold 1 is a right-angled trapezoidal body made of stainless steel with a thickness of 4-6mm. The upper plane 11 is 25-30mm long and the lower plane 12 is 20-25mm long. The upper plane 11 and the lower plane 12 have the same width of 13-15mm. The edges of the trapezoidal body are ground with a grinding wheel to prevent sharp edges from scratching the heel 5 of the shoe.
[0026] Preferably, the forming mold 1 has a thickness of 6mm, an upper plane 11 with a length of 30mm, a lower plane 12 with a length of 20mm, and the upper plane 11 and the lower plane 12 have the same width of 15mm.
[0027] like Figure 1 and Figure 2 As shown, the position fixing hole 2 is a cylindrical hole with a diameter of 3-5mm and a height of 4-6mm, and has internal threads that mate with the fixing self-tapping screw 3 to connect the shaping mold 1 and the shoe last 4; preferably, the position fixing hole 2 is a cylindrical hole with a diameter of 5mm and a height of 6mm. Specifically, the shoe last 4 is provided with a hole for the fixing self-tapping screw 3 to be inserted. The fixing self-tapping screw 3 passes through the position fixing hole 2 and is inserted into the hole on the shoe last 4, so that the shaping mold 1 is connected to the shoe last 4, and the fixing self-tapping screw 3 is inserted into the hole on the shoe last 4 with a certain degree of tightness, so that the operator can swing the shaping mold 1 back and forth freely, which is convenient for the subsequent last-pulling process.
[0028] The specific working process of this utility model is as follows:
[0029] After the self-tapping screw 3 passes through the position fixing hole 2, it is inserted into the hole on the shoe last 4 to connect the shaping mold 1 to the shoe last 4. Through the thread engagement between the self-tapping screw 3 and the position fixing hole 2, the shaping mold 1 can be rotated, rotating the beveled surface of the shaping mold 1 to face the heel counter 5 of the shoe, so that the beveled surface of the shaping mold 1 presses against the heel counter 5 of the shoe. Figure 3 As shown, after maintaining this shaping state and undergoing processes such as heat setting and gluing, the shoe undergoes cold setting and begins to be lasted. The lasting process begins when the oblique surface of the shaping mold 1 is rotated away from the back of the shoe 5. Figure 4 As shown, the shoe has now taken shape.
[0030] This utility model device is simple and easy to use. During operation, you only need to rotate the mold, and it will not cause wear or scratches to the inside of the shoe. The shaping mold is fixed on the shoe last and will not affect other processes.
[0031] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.
Claims
1. A mold for shaping the heel counter of a shoe, comprising a shoe last (4), characterized in that: A shaping mold (1) is movably connected to the shoe last (4). The shaping mold (1) has a beveled surface, which is used to abut against the back of the shoe (5). The shaping mold (1) is a trapezoidal body, including an upper plane (11) and a lower plane (12) that are parallel to each other. The upper plane (11) and the lower plane (12) have the same width, and the length of the upper plane (11) is greater than the length of the lower plane (12). The upper plane (11) and the lower plane (12) are perpendicularly connected on three sides and obliquely connected on the other side, so that the shaping mold (1) has two trapezoidal sides and one oblique cut surface. The shaping mold (1) is provided with a position fixing hole (2). The opening of the position fixing hole (2) is located on the side of the upper plane (11) away from the oblique cut surface, and the position fixing hole (2) penetrates the shaping mold (1) vertically.
2. The mold for shaping the back of a shoe upper according to claim 1, characterized in that: The shaping mold (1) is a right-angled trapezoidal body made of stainless steel with a thickness of 4-6mm. The upper plane (11) is 25-30mm long and the lower plane (12) is 20-25mm long. The upper plane (11) and the lower plane (12) have the same width of 13-15mm.
3. The mold for shaping the heel counter of a shoe upper according to claim 1, characterized in that: The position fixing hole (2) is a cylindrical hole with a diameter of 3-5mm and a height of 4-6mm, and has a thread inside that matches the fixing self-tapping screw (3) to connect the shaping mold (1) and the shoe last (4).