Forming die for processing draw-bar box

Abstract

The utility model discloses a forming die for processing a draw-bar box, which comprises a plurality of groups of connecting columns, limiting heads are arranged on the connecting columns, a middle die is arranged among the connecting columns, a forming opening is formed in the middle die, a supporting seat is arranged below the middle die, a forming die is arranged on the supporting seat, and the connecting columns are connected with the forming die. A pressure applying seat is arranged above the middle mold, a limiting mold is arranged at the lower end of the pressure applying seat, a limiting groove is formed in the lower end of the limiting mold, the supporting seat and the pressure applying seat are both in sliding fit with the connecting column, the forming mold comprises an outer frame mold and a plurality of ejection molds, and the ejection molds are distributed around the upper end of the outer frame mold. A supporting frame is arranged in the outer frame mold, the upper end of the supporting frame is connected with the ejection mold, a sliding rod is arranged at the lower end of the supporting frame, the sliding rod is in sliding fit with the forming mold, a through rod hole is formed in the supporting seat, and the through rod hole is matched with the sliding rod. According to the equipment, blowing forming of materials is more stable, demolding is smoother, and the production quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of trolley case production, and more specifically, to a forming die for processing the trolley case. Background Art

[0002] A trolley case is a common type of luggage. With the help of a drawbar and a pulley, the case can be pulled to move on the ground, making it convenient for users to carry a large number of items. Most trolley cases on the market are produced through vacuum forming, that is, a plate-like material is fixed on a frame and heated to soften it, and then blown through the air duct on the edge of the film, and then extruded through a mold, and air is sucked between the material and the mold through the air duct, so that the material is adsorbed on the mold and cooled to form.

[0003] When the trolley case shell is blister-formed, the heated plate needs to be blown up by gas, and the deformed material will be easier to wrap the mold. However, in common blister-forming equipment, most of them only set the forming mold under the material. When blowing, the material expands upward, the surface area of ​​the material is blown up, and its thickness becomes thinner. The material can only rely on its own tension to maintain its own structure. When the material is uneven or the force on the deformation part is too large, it is easy to be damaged and can no longer be plasticized, resulting in material waste and affecting production. Moreover, after the shaping is completed, because the material is more stable, it is inconvenient for workers to remove the plastic products, and they need to use the mold to self- The ejection structure with the belt is used for demoulding, while the common ejection structure is mostly a single ejector rod with a small area. The contact area with the workpiece during operation is also small, which is prone to incomplete ejection during ejection, poor demoulding effect, and certain limitations when used; in addition, after the plastic product of the trolley case shell is vacuum-formed, it is necessary to perform grinding, deburring, punching and other processing to facilitate the subsequent assembly of the shell. When grinding or punching, the stability of the shell needs to be ensured to ensure the stability of the quality of trimming and punching. The plastic product needs to be quickly removed from the vacuum forming equipment and placed on a fixed equipment for processing, which is more troublesome to operate. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the problems existing in the prior art, the utility model provides a forming mold for processing a trolley case to solve the technical problem of the inconvenience in production of common blister equipment mentioned in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above object, the present utility model provides the following technical solutions: A forming die for processing a trolley case, including connecting columns, multiple groups of the connecting columns are provided, a limiting head is provided on the connecting columns, an intermediate die is provided between the connecting columns, a forming opening is formed in the intermediate die, a supporting seat is provided below the intermediate die, a forming die is provided on the supporting seat, a pressing seat is provided above the intermediate die, a limiting die is provided at the lower end of the pressing seat, a limiting groove is formed at the lower end of the limiting die, and both the supporting seat and the pressing seat are slidably matched with the connecting columns;

[0008] The forming die includes an outer frame die and an ejecting die. Multiple ejecting dies are provided and distributed around the upper end of the outer frame die. A support frame is provided inside the outer frame die. The upper end of the support frame is connected to the ejecting die, and a sliding rod is provided at the lower end. The sliding rod is slidably matched with the forming die. A through rod hole is formed on the supporting seat, and the through rod hole is matched with the sliding rod.

[0009] The present utility model is further provided that a pressing push rod is provided at the lower end of the ejecting die, a pressing plate is provided at the output end of the pressing push rod, and a buffer pad is provided on the pressing plate to facilitate high - height materials.

[0010] The present utility model is further provided that an air vent pipe is provided at the outer end of the intermediate die, a blowing and sucking head is provided inside the forming opening, and the air vent pipe and the blowing and sucking head cooperate to provide blowing and sucking effects.

[0011] The present utility model is further provided that a positioning rod is provided at the lower end of the pressing seat, a positioning hole is formed on the intermediate die, a positioning groove is formed on the supporting seat, and the positioning rod is matched with the positioning hole and the positioning groove to ensure stable cooperation between the dies.

[0012] The present utility model is further provided that a lower mounting plate is provided on the forming die, the lower mounting plate is matched with the supporting seat through fixing bolts, an upper mounting plate is provided on the limiting die, and the upper mounting plate is matched with the pressing seat through fixing bolts to facilitate die replacement.

[0013] The present utility model is further provided that a connecting cross bar is provided between the ejecting dies, a receiving groove is formed on the outer frame die, and the connecting cross bar is slidably matched with the receiving groove to improve the demolding effect.

[0014] The present utility model is further provided that a limiting slider is provided at the side end of the support frame, a limiting sliding groove is formed inside the outer frame die, and the limiting slider is matched with the limiting sliding groove to enable stable demolding.

[0015] The present utility model is further provided that a sliding seal is provided at the lower end of the forming die, and the sliding rod is matched with the outer frame die through the sliding seal to ensure smooth cooperation between parts.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a forming mold for processing a trolley case, which has the following beneficial effects:

[0018] 1. The basic vacuum forming structure is formed by the cooperation of the intermediate film, the support seat and the forming die. The upper forming structure is formed for protection by the cooperation of the pressure seat and the limiting film. When the material is blown up to expand, the space above the material is limited by the limiting groove, so that the expansion size of the material meets the size required for forming, and will not expand too much, avoiding material damage and ensuring stable production.

[0019] 2. The outer frame mold and the ejector mold are combined to form a molding mold. When demolding, the sliding rod and the support frame are combined to drive multiple ejector molds to move, with a larger contact area. The material is supported from multiple positions, so that the material can be demolded completely and quickly. The overall structure is simple and the functionality is strong.

[0020] 3. Through the cooperation of the pressure push rod and the pressure plate with the ejection mold, after demoulding, the pressure push rod applies thrust, so that the pressure plate contacts the inner wall of the molding material through the buffer pad, supports and restricts the material of the box shell, and keeps the material stable during edge grinding and drilling. There is no need to replace the equipment, and the shaping and trimming can be carried out at one time, which is convenient for workers to operate and facilitates the production work. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front structure of a forming mold for processing a trolley case in the utility model;

[0022] Figure 2 This is a schematic diagram of the matching structure of the intermediate die and the forming die after the limiting die is disassembled in the utility model;

[0023] Figure 3 It is a schematic diagram of the bottom of the structure of the pressure seat in the utility model after being disassembled and cooperating with the limiting membrane;

[0024] Figure 4 This is a cross-sectional view of the matching structure of the inner outer frame mold and the ejection mold of the forming film in the utility model;

[0025] Figure 5 It is a schematic diagram of the support seat structure in the utility model.

[0026] In the figure: 1, connecting column; 2, limiting head; 3, intermediate die; 4, forming port; 5, support base; 6, forming die; 7, pressing seat; 8, limiting die; 9, limiting groove; 10, outer frame die; 11, ejecting die; 12, support frame; 13, sliding rod; 14, through rod hole; 15, pressing push rod; 16, pressing plate; 17, buffer pad; 18, ventilation pipe; 19, blowing and sucking head; 20, positioning rod; 21, positioning hole; 22, positioning groove; 23, lower mounting plate; 24, upper mounting plate; 25, connecting cross bar; 26, storage groove; 27, limiting slider; 28, limiting sliding groove; 29, sliding seal. Detailed implementation manners

[0027] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The following will describe the present invention in detail with reference to the drawings and in combination with the embodiments.

[0028] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0029] In the present invention, unless otherwise stated, the orientations such as "upper and lower" are usually in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left and right" are usually left and right as shown in the drawings; "inside and outside" refer to the inside and outside relative to the contours of the respective components, but the above orientation terms do not limit the present invention.

[0030] Please refer to Figures 1-5 , a forming die for processing a trolley case, including a connecting column 1, and multiple groups of connecting columns 1 are provided. A limiting head 2 is provided on the connecting column 1. An intermediate die 3 is provided between the connecting columns 1. A forming port 4 is opened in the intermediate die 3. A support base 5 is provided below the intermediate die 3. A forming die 6 is provided on the support base 5. A pressing seat 7 is provided above the intermediate die 3. A limiting die 8 is provided at the lower end of the pressing seat 7. A limiting groove 9 is opened at the lower end of the limiting die 8. Both the support base 5 and the pressing seat 7 are slidably matched with the connecting column 1;

[0031] The forming die 6 includes an outer frame die 10 and an ejecting die 11. Multiple ejecting dies 11 are provided and are distributed around the upper end of the outer frame die 10. A support frame 12 is provided inside the outer frame die 10. The upper end of the support frame 12 is connected to the ejecting die 11, and a sliding rod 13 is provided at the lower end. The sliding rod 13 is slidably matched with the forming die 6. A through rod hole 14 is opened on the support base 5, and the through rod hole 14 is matched with the sliding rod 13.

[0032] In this embodiment, the intermediate die 3, the support base 5, and the pressing base 7 are respectively fixed to different fixing devices by the support of the connecting column 1 as a guide. During operation, a plate-shaped raw material is placed through the intermediate die 3. After heating the raw material, before the raw material plate is inflated, the movement of the pressing base 7 is controlled to drive the limiting die 8 to descend and contact the intermediate film, covering the raw material. The bulging range of the raw material is restricted by the limiting groove 9 to prevent the raw material from bursting due to excessive bulging. Then, the support base 5 is controlled to drive the forming die 6 to move upward, and the forming die 6 passes through the forming port 4 to extrude the raw material and cooperate with the limiting die 8 for shaping during air extraction.

[0033] More specifically, when using the device, multiple sets of driving devices are prepared and respectively cooperate with the support base 5 and the sliding rod 13. The two sets of driving devices work simultaneously to push the forming die 6 to cooperate with the material to complete the forming of the material. After the forming of the material is completed, the driving structure cooperating with the sliding rod 13 remains stationary, and the driving structure cooperating with the support base 5 contracts. The support base 5 drives the outer frame die 10 to descend, and the sliding rod 13 passes through the through rod hole 14 and slides with the outer frame die 10. With the support of the support frame 12, the position of the ejector die 11 is ensured to be unchanged, so that the ejector die 11 slides out relative to the forming die 6, pushing against the formed material to eject the material. Compared with the traditional ejector rod, the contact area between the ejector die 11 and the material is larger, and the fitting effect is better, and the demolding work can be completed completely and quickly during ejection.

[0034] Please refer to Figure 2 , as an implementation manner of positioning support: a pressing push rod 15 is provided at the lower end of the ejector die 11, a pressing plate 16 is provided at the output end of the pressing push rod 15, and a buffer pad 17 is provided on the pressing plate 16.

[0035] Specifically, after the demolding of the material is completed, the pressing push rod 15 and the pressing plate 16 will be exposed inside the formed material together with the ejector die 11. At this time, the pressing push rod 15 works to drive the pressing plate 16 to move, so that the pressing plate 16 moves towards the surrounding material, contacts the inner wall of the material, and ejects the material, keeping the demolded material stable and facilitating cooperation with subsequent drilling equipment.

[0036] Please refer to Figure 1 , as a further implementation manner of the intermediate die: an air pipe 18 is provided at the outer end of the intermediate die 3, and a blowing and sucking head 19 is provided inside the forming port 4, and the air pipe 18 and the blowing and sucking head 19 cooperate.

[0037] Specifically, the air pipe 18 is connected to external air supply and suction devices. During production, gas is supplied and absorbed through the air pipe 18, and gas is blown to the material or vacuum is formed by absorbing gas through the blowing and sucking head 19.

[0038] Please refer to Figures 1-3, As a further implementation of the forming die: A positioning rod 20 is provided at the lower end of the pressing seat 7, a positioning hole 21 is formed in the intermediate die 3, and a positioning groove 22 is formed in the support seat 5. The positioning rod 20 cooperates with the positioning hole 21 and the positioning groove 22.

[0039] Specifically, when performing positioning and forming, when the pressing seat 7 descends and cooperates with the intermediate die 3, the positioning rod 20 will pass through the positioning hole 21, thereby ensuring the alignment and cooperation of the limiting film and the intermediate film. When the support seat 5 drives the forming die 6 to rise, the positioning rod 20 will be inserted into the positioning groove 22 for cooperation to ensure the alignment and cooperation of the forming die 6 and the intermediate die 3.

[0040] Please refer to Figure 1 and Figure 3 , As a further implementation of the forming die: A lower mounting plate 23 is provided on the forming die 6, and the lower mounting plate 23 cooperates with the support seat 5 through fixing bolts. An upper mounting plate 24 is provided on the limiting die 8, and the upper mounting plate 24 cooperates with the pressing seat 7 through fixing bolts.

[0041] Specifically, through the lower mounting plate 23, the mounting structure of the forming die 6 is provided, facilitating the disassembly and assembly of the forming die 6 on the support seat 5. Through the upper mounting plate 24, the mounting structure of the current die is provided, facilitating the disassembly and assembly of the limiting die 8 on the pressing seat 7.

[0042] Please refer to Figure 4 , As a further implementation of the ejection die: A connecting cross bar 25 is provided between the ejection dies 11, a receiving groove 26 is formed in the outer frame die 10, and the connecting cross bar 25 is slidably matched with the receiving groove 26.

[0043] Specifically, when the ejection die 11 retracts into the outer frame film, the connecting cross bar 25 is located in the receiving groove 26 to ensure the flatness of the forming die 6. When the ejection die 11 ejects from the outer frame film, the connecting cross bar 25 will be ejected together. By contacting the material through the connecting cross bar 25, the supporting effect of the ejection is further improved, making the demolding more stable.

[0044] Please refer to Figure 4 , As a further implementation of the support frame: A limiting slider 27 is provided at the side end of the support frame 12, a limiting sliding groove 28 is formed in the outer frame die 10, and the limiting slider 27 is matched with the limiting sliding groove 28.

[0045] Specifically, when the ejection die 11 ejects from the outer frame die 10, the support frame 12 will cooperate through the limiting slider 27 and the limiting sliding groove 28, and the limiting sliding groove 28 restricts the movement of the limiting slider 27, enabling the stable movement of the support frame 12.

[0046] Please refer to Figure 4 , As a further implementation of the sliding rod: A sliding seal 29 is provided at the lower end of the forming die 6, and the sliding rod 13 is matched with the outer frame die 10 through the sliding seal 29.

[0047] Specifically, the sliding rod 13 contacts the outer frame die 10 through the sliding seal 29 to ensure stable movement during ejection and demolding.

[0048] In summary, when the overall equipment is in use (or operation):

[0049] When using the equipment, guided by the support of the connecting column 1, the intermediate die 3, the support seat 5, and the pressure seat 7 are respectively fixed to different fixing devices, and are connected to the support seat 5 and the pressure seat 7 through the driving device. The driving device on the support seat 5 is divided into two groups, one group cooperates with the support seat 5, and the other group cooperates with the sliding rod 13. During operation, it is connected to the external air supply and suction equipment through the ventilation pipe 18. The plate-shaped raw material is placed through the intermediate die 3. Before blowing up the raw material plate after heating the raw material, control the movement of the pressure seat 7 to drive the limiting die 8 to descend and contact the intermediate film to cover the raw material. Gas is provided through the ventilation pipe 18, and air is blown onto the material through the air blowing and sucking head 19 to make the material expand and bulge. The bulging range of the raw material is restricted by the limiting groove 9 to prevent the raw material from bursting due to excessive bulging. Then control the support seat 5 to drive the forming die 6 to move upward. The forming die 6 passes through the forming opening 4 to extrude the raw material. Then gas is absorbed through the ventilation pipe 18, and the gas near the material is extracted through the air blowing and sucking head 19 to make the forming die 6 cooperate with the limiting die 8 for shaping during air extraction, so that the material is adsorbed and tightly attached to the forming die 6 and becomes the shape of the suitcase shell, and then it is cooled and shaped. In addition, when the pressure seat 7 descends and cooperates with the intermediate die 3, the positioning rod 20 will pass through the positioning hole 21, thereby ensuring the alignment and cooperation between the limiting film and the intermediate film. When the support seat 5 drives the forming die 6 to rise, the positioning rod 20 will be inserted into the positioning groove 22 for cooperation to ensure the alignment and cooperation between the forming die 6 and the intermediate die 3. In addition, through the lower mounting plate 23, the mounting structure of the forming die 6 is provided, which facilitates the disassembly and assembly of the forming die 6 on the support seat 5. Through the upper mounting plate 24, the mounting structure of the current die is provided, which facilitates the disassembly and assembly of the limiting die 8 on the pressure seat 7. Different forming structures can be replaced according to different requirements.

[0050] When driving the support base 5 to make the support base 5 rise, the driving device cooperating with the sliding rod 13 also works synchronously to ensure the stable cooperation between the outer frame mold 10 and the ejecting mold 11. When the ejecting mold 11 retracts into the outer frame film, the connecting cross bar 25 is located in the receiving groove 26 to ensure the flatness of the forming mold 6. After the material is formed, the driving structure cooperating with the sliding rod 13 does not move, and the driving structure cooperating with the support base 5 contracts. The outer frame mold 10 is driven to descend by the support base 5, and the sliding rod 13 passes through the through rod hole 14 and slides with the outer frame mold 10. With the support of the support frame 12, the position of the ejecting mold 11 is ensured to be unchanged, and the ejecting mold 11 slides out relative to the forming mold 6, pushing against the formed material to eject the material. And as the ejecting mold 11 is ejected from the outer frame film, the connecting cross bar 25 will be ejected together. By contacting the material through the connecting cross bar 25, the supporting effect of the ejection is further improved, making the demolding more stable. Compared with the traditional ejecting rod, the contact area between the ejecting mold 11 and the material is larger, and the fitting effect is better. The demolding work can be completed completely and quickly during ejection. And when the ejecting mold 11 is ejected from the outer frame mold 10, the support frame 12 will cooperate with the limit slider 27 and the limit chute 28. The limit chute 28 restricts the movement of the limit slider 27 to make the support frame 12 move stably. The sliding rod 13 contacts the outer frame mold 10 through the sliding seal 29 to ensure the stability of the movement during ejection and demolding. In addition, after the demolding of the material is completed, the pressure applying push rod 15 and the pressure applying plate 16 will be exposed inside the formed material together with the ejecting mold 11. At this time, the pressure applying push rod 15 works to drive the pressure applying plate 16 to move, making the pressure applying plate 16 move towards the surrounding material and contact the inner wall of the material to eject the material, keeping the demolded material stable and facilitating the cooperation with the subsequent drilling equipment.

[0051] In all the solutions mentioned above, for the connection between two components, welding, the cooperation connection of bolts and nuts, bolt or screw connection or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For those mentioned above that involve fixed connection, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A forming die for processing a trolley case, comprising a connecting column (1), wherein the connecting column (1) is provided in a plurality of groups, and a limit head (2) is provided on the connecting column (1), wherein: An intermediate mold (3) is provided between the connecting columns (1), a molding opening (4) is provided in the intermediate mold (3), a support seat (5) is provided below the intermediate mold (3), a molding mold (6) is provided on the support seat (5), a pressure seat (7) is provided above the intermediate mold (3), a limiting mold (8) is provided at the lower end of the pressure seat (7), a limiting groove (9) is provided at the lower end of the limiting mold (8), and the support seat (5) and the pressure seat (7) are both slidably matched with the connecting column (1); The molding die (6) comprises an outer frame die (10) and an ejection die (11). A plurality of ejection die (11) are provided and distributed around the upper end of the outer frame die (10). A support frame (12) is provided inside the outer frame die (10). The upper end of the support frame (12) is connected to the ejection die (11), and the lower end is provided with a sliding rod (13). The sliding rod (13) is slidably matched with the molding die (6). A through rod hole (14) is provided on the support seat (5), and the through rod hole (14) is matched with the sliding rod (13).

2. A forming die for processing a trolley case according to claim 1, characterized in that: A pressure push rod (15) is provided at the lower end of the ejection mold (11), a pressure plate (16) is provided at the output end of the pressure push rod (15), and a buffer pad (17) is provided on the pressure plate (16).

3. The forming mold for processing a trolley case according to claim 1, characterized in that: The outer end of the middle mold (3) is provided with a vent pipe (18), the inner side of the molding port (4) is provided with a blowing and suction head (19), and the vent pipe (18) and the blowing and suction head (19) cooperate with each other.

4. The forming die for processing a trolley case according to claim 3, characterized in that: A positioning rod (20) is provided at the lower end of the pressure seat (7), a positioning hole (21) is provided on the middle mold (3), a positioning groove (22) is provided on the support seat (5), and the positioning rod (20) cooperates with the positioning hole (21) and the positioning groove (22).

5. The forming die for processing a trolley case according to claim 4, characterized in that: The forming die (6) is provided with a lower mounting plate (23), and the lower mounting plate (23) cooperates with the support seat (5) through fixing bolts. The limiting die (8) is provided with an upper mounting plate (24), and the upper mounting plate (24) cooperates with the pressure seat (7) through fixing bolts.

6. The forming die for processing a trolley case according to claim 1, characterized in that: A connecting cross bar (25) is provided between the ejection molds (11), a receiving groove (26) is provided on the outer frame mold (10), and the connecting cross bar (25) is slidably matched with the receiving groove (26).

7. The forming die for processing a trolley case according to claim 1, characterized in that: A limiting slide block (27) is provided at the side end of the support frame (12), a limiting slide groove (28) is provided in the outer frame mold (10), and the limiting slide block (27) cooperates with the limiting slide groove (28).

8. The forming die for processing a trolley case according to claim 7, characterized in that: The lower end of the molding die (6) is provided with a sliding seal (29), and the sliding rod (13) cooperates with the outer frame die (10) through the sliding seal (29).

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