A blow molding die for producing suitcases

Abstract

This utility model relates to the field of blow molding technology, and in particular to a blow molding mold for producing trolley cases. It includes a base plate and a support plate. The support plates are symmetrically fixedly connected to the upper end of the base plate. A transmission device is provided at one end of one side of the support plate, and a support arm is fixedly connected to one end of the other side of the support plate. One end of the support arm is fixedly connected to a first mold on one side. In this blow molding mold for producing trolley cases, through the cooperation of the transmission device and the first mold, the output shaft of the motor rotates, driving the threaded rod to rotate synchronously. This allows the threaded rod to drive the threaded block to move, which in turn drives the sliding rod to move synchronously. The sliding rod then causes the second mold to separate from the first mold, exposing the internally formed trolley rod for easy removal. Exposing both the first and second molds makes unloading easier. Furthermore, this device has a simple structure, reducing production costs and improving practicality.

Description

Technical Field

[0001] This utility model relates to the field of blow molding technology, specifically a blow molding mold for producing trolley cases. Background Technology

[0002] The tubular plastic preform obtained by extrusion or injection molding of thermoplastic resin in blow molding molds is placed in a split mold while hot. After the mold is closed, compressed air is immediately introduced into the preform to inflate it and make it stick tightly to the inner wall of the mold. After cooling and demolding, various hollow products are obtained.

[0003] For example, a blow molding mold for producing luggage trolley rods, authorized by publication number "CN218256715U," allows two molds to be placed side-by-side and combined when brought closer together via a through-slot. This solves the problem that top-and-bottom combined blow molding molds might cause the material being blown below to increase due to gravity. However, this device is not convenient for quickly demolding and removing the molded luggage parts. The outer shell of the device encloses its entire structure, making material discharge inconvenient. Furthermore, the device requires multiple gears and other transmission mechanisms, resulting in high production costs and reduced practicality. Utility Model Content

[0004] The purpose of this invention is to solve the problems of inconvenient material discharge and low practicality of the device, and to propose a blow molding mold for producing trolley cases.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a blow molding mold for producing a trolley case, including a base plate and a support plate. The upper end of the base plate is symmetrically and fixedly connected to the support plate. One end of one side of the support plate is provided with a transmission device, and one end of the other side of the support plate is fixedly connected to a support arm. One end of the support arm is fixedly connected to a first mold on one side. One end of the first mold abuts against a second mold. The upper ends of both the first mold and the second mold abut against the inner wall of the cover.

[0007] Preferably, the transmission device includes a bending plate and a motor. One end of the bending plate is fixedly connected to a support plate on one side. The outer wall of the bending plate is fixedly connected to the motor via a motor frame. The output shaft of the motor is fixedly connected to a threaded rod. The outer wall of the threaded rod is threadedly connected to a threaded block. The upper end of the threaded block is fixedly connected to a sliding rod.

[0008] Preferably, the outer wall of the slide rod is slidably connected to a support plate on one side, one end of the slide rod passes through the support plate, one end of the threaded rod is rotatably connected to the support plate on one side through a bearing, one end of the slide rod is fixedly connected to the second mold, and the lower end of the second mold is slidably connected to the protruding part of the support plate on one side.

[0009] Preferably, the outer walls of both the first mold and the second mold are fitted to the inner wall of the cover, and the outer wall of the cover is fixedly connected to the air blowing pipe.

[0010] Preferably, one end of the air blowing pipe penetrates the cover, and the other end of the air blowing pipe is fixedly connected to the air outlet of an external air pump.

[0011] The present invention discloses a blow molding mold for producing trolley cases, which has the following advantages: Through the cooperation of a transmission device and a first mold, the raw material for producing the trolley case handle is melted and added to the interior of the first and second molds. The cover is controlled to fit snugly against the first and second molds. An air pump blows air through an air pipe, causing the raw material inside the first and second molds to be blow-molded. After molding, the cover is separated from the first and second molds. The output shaft of the motor rotates, driving a threaded rod to rotate synchronously. This threaded rod drives a threaded block to move, which in turn drives a sliding rod to move synchronously. The sliding rod then separates the second mold from the first mold, exposing the molded handle for easy removal. Exposing the first and second molds makes unloading easier. Furthermore, the device has a simple structure, reducing production costs and improving practicality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This utility model Figure 1 The front view;

[0014] Figure 3 This utility model Figure 1 A front sectional view;

[0015] Figure 4 This utility model Figure 1 A three-dimensional schematic diagram of the first and second molds;

[0016] Figure 5 This utility model Figure 3 Schematic diagram of part A in the middle.

[0017] In the diagram: 1. Base plate, 2. Transmission device, 201. Bending plate, 202. Motor, 203. Threaded rod, 204. Threaded block, 205. Slide rod, 3. Support arm, 4. Support plate, 5. First mold, 6. Cover, 7. Air blowing pipe, 8. Second mold. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] See attached document Figure 1-5 In this embodiment, a blow molding mold for producing a trolley case includes a base plate 1 and a support plate 4. The upper end of the base plate 1 is symmetrically and fixedly connected to the support plate 4. One end of one side of the support plate 4 is provided with a transmission device 2, and one end of the other side of the support plate 4 is fixedly connected to a support arm 3. One end of the support arm 3 is fixedly connected to a first mold 5 on one side. One end of the first mold 5 abuts against a second mold 8. The upper ends of both the first mold 5 and the second mold 8 abut against the inner wall of the cover 6. The cover 6 can be connected to a driving device such as a hydraulic cylinder. The hydraulic cylinder can be fixed to the support plate 4 on one side, so that the cover 6 can be raised and lowered.

[0020] The outer wall of the slide rod 205 is slidably connected to the support plate 4 on one side. One end of the slide rod 205 passes through the support plate 4. One end of the threaded rod 203 is rotatably connected to the support plate 4 on one side through a bearing. One end of the slide rod 205 is fixedly connected to the second mold 8. The lower end of the second mold 8 is slidably connected to the protruding part of the support plate 4 on one side. The outer walls of the first mold 5 and the second mold 8 are both in contact with the inner wall of the cover 6. The outer wall of the cover 6 is fixedly connected to the air blowing pipe 7. One end of the air blowing pipe 7 passes through the cover 6, and the other end of the air blowing pipe 7 is fixedly connected to the air outlet of an external air pump.

[0021] The transmission device 2 includes a bending plate 201 and a motor 202. One end of the bending plate 201 is fixedly connected to a support plate 4 on one side. The outer wall of the bending plate 201 is fixedly connected to the motor 202 through a motor frame. The motor 202 can drive the threaded rod 203 to move synchronously according to actual needs. The output shaft of the motor 202 is fixedly connected to the threaded rod 203. The outer wall of the threaded rod 203 is threadedly connected to the threaded block 204. The upper end of the threaded block 204 is fixedly connected to the slide rod 205.

[0022] Working principle:

[0023] When using blow molding molds:

[0024] The raw material for producing the trolley handle is melted and added to the inside of the first mold 5 and the second mold 8. The cover 6 is controlled to fit with the first mold 5 and the second mold 8 by external hydraulic cylinders and other equipment. The external power supply of the external air pump is connected and the air pump is started to blow air through the air blowing pipe 7, so that the raw material inside the first mold 5 and the second mold 8 is blow molded and shaped. After the shaping is completed, the cover 6 is separated from the first mold 5 and the second mold 8 again.

[0025] Demolding process:

[0026] When the external power supply of motor 202 is connected, the output shaft of motor 202 is started to rotate, which drives threaded rod 203 to rotate synchronously. Threaded rod 203 can drive threaded block 204 to move, which in turn drives slide rod 205 to move synchronously. Slide rod 205 can then drive the second mold 8 to separate from the first mold 5, exposing the internally formed pull rod for easy removal.

[0027] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A blow molding mold for producing a trolley case, comprising a base plate (1) and a support plate (4), wherein the support plate (4) is symmetrically fixedly connected to the upper end of the base plate (1), characterized in that: One end of the support plate (4) on one side is provided with a transmission device (2), and one end of the support plate (4) on the other side is fixedly connected to a support arm (3). One end of the support arm (3) is fixedly connected to the first mold (5) on one side. One end of the first mold (5) is pressed against the second mold (8). The upper ends of the first mold (5) and the second mold (8) are pressed against the inner wall of the cover (6).

2. The blow mold for producing a trolley case according to claim 1, characterized in that: The transmission device (2) includes a bent plate (201) and a motor (202). One end of the bent plate (201) is fixedly connected to a support plate (4) on one side. The outer wall of the bent plate (201) is fixedly connected to the motor (202) through a motor frame. The output shaft of the motor (202) is fixedly connected to a threaded rod (203). The outer wall of the threaded rod (203) is threadedly connected to a threaded block (204). The upper end of the threaded block (204) is fixedly connected to a sliding rod (205).

3. The blow mold for producing a trolley case according to claim 2, characterized in that: The outer wall of the slide rod (205) is slidably connected to the support plate (4) on one side. One end of the slide rod (205) passes through the support plate (4). One end of the threaded rod (203) is rotatably connected to the support plate (4) on one side through a bearing. One end of the slide rod (205) is fixedly connected to the second mold (8). The lower end of the second mold (8) is slidably connected to the protruding part of the support plate (4) on one side.

4. The blow molding die for producing a trolley case according to claim 1, characterized in that: The outer walls of the first mold (5) and the second mold (8) are both in contact with the inner wall of the cover (6), and the outer wall of the cover (6) is fixedly connected to the air blowing pipe (7).

5. The blow mold for producing a draw-bar bag according to claim 4, wherein: One end of the air blowing pipe (7) passes through the cover (6), and the other end of the air blowing pipe (7) is fixedly connected to the air outlet of an external air pump.

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