Compression molding machine for bags and suitcases

Abstract

The invention discloses a bag compression molding machine, and relates to the technical field of bag compression molding, the bag compression molding machine comprises a compression molding machine and leather, the top of the compression molding machine is provided with a hydraulic rod, the bottom telescopic end of the hydraulic rod is fixedly connected with a bearing plate, the compression molding machine is fixedly connected with a lower mold, and the lower surface of the bearing plate is fixedly connected with an upper mold; one surface, connected with the lower mold, of the molding press is an operation surface, four clamping and stretching assemblies are arranged on the molding press in a rectangular array, and each clamping and stretching assembly comprises a bottom groove; the four edges of the leather are stretched while the leather is clamped, and uniform pulling force is applied to the four edges of the leather, so that the center position of the leather corresponds to the center position of the lower die, namely, the leather uniformly covers the lower die, and the leather can be prevented from being slightly curled or folded due to the flexibility of the leather in the placing process; the situation that the leather deviates on the lower die is avoided, and it is ensured that the situation that the shape and the size of the formed luggage do not meet the design requirements due to the deviation of the leather in the die pressing work of the die pressing machine is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of luggage compression moulding, in particular to a luggage compression moulding machine. Background Art

[0002] The bag pressing machine is a professional equipment used for bag production. It uses pressure to shape bag materials (such as leather, artificial leather, plastic, etc.) according to the shape of the mold. Its working process is usually to place the cut bag materials in the corresponding position of the mold, and then apply sufficient pressure through the machine's pressure system. This pressure makes the material fit the contour of the mold, thereby shaping the various parts of the bag, such as the box body, box cover, etc.

[0003] In some existing bag compression molding machine usage scenarios, operators will manually place the cut bag materials (such as leather, artificial leather or plastic sheets, etc.) directly on the bottom mold. Usually, the operator will try to align the material roughly according to the shape of the bottom mold, but since there is no specific clamping device to assist, this process mainly relies on the operator's experience and visual judgment. When placing lighter and thinner materials, such as thin artificial leather, the materials are easily affected by the surrounding environmental factors. Even if the operating environment is relatively static, the materials may curl or fold slightly during the placement process due to their own flexibility, and often there will be more on one side and less on the other side. When the upper mold is pressed down, the material is easily displaced under the action of pressure, resulting in the shape and size of the bag after molding not meeting the design requirements. This deviation in shape and size may cause the bag to be unable to accurately match other components (such as box covers, handles, locks, etc.) during the subsequent assembly process, affecting the overall assembly quality.

[0004] At the same time, when the luggage material is not accurately placed on the bottom mold, it is easy to have misaligned patterns. For example, for luggage materials with brand logos or decorative patterns, if the material is placed in a positional offset, after the die is pressed, the pattern may deviate from the center or edge of the luggage component, and the symmetrical effect or overall layout required by the design cannot be achieved, reducing the aesthetics and quality of the finished luggage.

[0005] Therefore, a bag compression molding machine is proposed. Summary of the invention

[0006] The object of the present invention is to provide a bag compression molding machine to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a luggage die-casting machine, comprising a die-casting machine and leather, a hydraulic rod is installed on the top of the die-casting machine, the bottom telescopic end of the hydraulic rod is fixedly connected to a carrying plate, a lower die is fixedly connected to the die-casting machine, an upper die is fixedly connected to the lower surface of the carrying plate, a side of the die-casting machine connected to the lower die is set as an operating surface, four clamping and stretching components are arranged in a rectangular array on the die-casting machine, the clamping and stretching components include a bottom groove, the bottom groove is arranged on the operating surface of the die-casting machine, a support plate is slidably connected inside the bottom groove, a spring is arranged inside the bottom groove, one end of the spring is fixedly connected to the groove wall of the bottom groove, the other end of the spring is fixedly connected to the bottom end of the side of the support plate away from the upper die, and a through groove is arranged on the carrying plate The through slot corresponds to the vertical position of the bottom slot, and a side slider is slidably connected inside the through slot, and a spring 2 is arranged inside the through slot, one end of the spring 2 is fixedly connected to the slot wall of the through slot, and the other end of the spring 2 is fixedly connected to a side of the side slider away from the hydraulic rod, and an upper slider is slidably connected inside the side slider, and the top of the upper slider is fixedly connected to a limiting plate, and the top surface of the bearing plate is fixedly connected to a support column, and the top of the support column is fixedly connected to an inclined plate, and the inclined plate is slidably connected to an inclined slider, and the bottom end of the upper slider is slidably connected to a lower slider, and the bottom end of the lower slider is fixedly connected to a pressure plate, and a magnet 1 is fixedly connected to a side of the bottom end of the upper slider close to the hydraulic rod, and a magnet 2 is fixedly connected to a side of the lower slider close to the magnet 1, and a magnet 3 is embedded and fixedly connected to the bottom surface of the pressure plate.

[0008] Furthermore, two demoulding components are symmetrically arranged on the molding machine, and the demoulding components include a support block, which is fixedly connected to the supporting plate, a through pipe is fixedly connected to the top of the support block, an end of the through pipe close to the support column is slidably connected to a piston rod, an end of the piston rod close to the support column is fixedly connected to a connecting rod, an end of the piston rod away from the connecting rod is fixedly connected to a piston head, an end of the through pipe away from the connecting rod is fixedly connected to an intake pipe and an exhaust pipe, an air groove is jointly provided on the molding machine and the lower mold, an air hole is provided on the lower mold, an air valve is respectively provided inside the intake pipe and the exhaust pipe, and a limiting plate is respectively fixedly connected to the inner wall of the intake pipe and the exhaust pipe.

[0009] Furthermore, the through slot corresponds to the bottom slot in vertical position, one end of the second spring is fixedly connected to the slot wall of the through slot, and the other end of the second spring is fixedly connected to the side of the side slider away from the hydraulic rod.

[0010] Furthermore, a groove adapted to the support plate is provided on the lower die, and the shape of the support plate is set to be a trapezoid with oblique sides on both sides.

[0011] Furthermore, one end of the inclined plate away from the support column is fixedly connected to the upper surface of the bearing plate, the inclined plate is arranged to be higher on the side close to the support column and lower on the side away from the support column, the bottom end of the inclined slider is fixedly connected to the upper surface of the limit plate, and the inclined slider is sleeved on the inclined plate.

[0012] Furthermore, the surfaces of the second magnet and the first magnet that are close to each other are set to have the same magnetic poles.

[0013] Furthermore, the pressing plate and the supporting plate have exactly the same shape and size, and the pressing plate and the supporting plate correspond to each other in the vertical direction, and the supporting plate is made of iron.

[0014] Furthermore, the bottom end of the connecting rod is fixedly connected to the top end of the inclined sliding block, the piston head and the through pipe form a piston structure, and the material of the piston head is set to be rubber.

[0015] Furthermore, one end of the exhaust pipe away from the through pipe is fixedly connected to the air groove, and the exhaust pipe is fixedly connected to the bearing plate and the molding machine.

[0016] Furthermore, the top surface of the air hole is flush with the bottom of the inner wall of the lower mold, the limiting plate and the air valve located on the same side fit each other, the limiting plate located inside the intake pipe is at the top of the air valve, and the limiting plate located inside the exhaust pipe is at the bottom of the air valve.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] By stretching the leather on four sides while being clamped, uniform tension is applied to the four sides of the leather, so that the center position of the leather can correspond to the center position of the lower mold, that is, the leather is evenly covered on the lower mold, which can avoid the leather from curling or folding slightly due to its own flexibility during placement, and the leather from shifting on the lower mold, ensuring that the shape and size of the bag after molding will not meet the design requirements due to the shift of the leather during the molding work of the molding machine;

[0019] By clamping the leather and stretching it on four sides, the leather can be tightened and flattened, effectively avoiding wrinkles, creases and other defects on the surface of the product after molding;

[0020] The leather is evenly covered on the lower mold, and its position on the lower mold can be accurately fixed, which provides a good basis for ensuring the alignment of the pattern and ensures that the pattern templates on the lower mold and the upper mold can be accurately pressed on the required position on the leather, thereby ensuring the alignment and complete presentation of the pattern on the final product;

[0021] By setting the magnet one and the magnet two, the clamping and stretching assembly can adapt to the die materials of different sizes and materials, thus ensuring the universality of the clamping and stretching assembly;

[0022] The air ejected flows between the lower mold and the leather contact surface, destroying the vacuum environment between the lower mold and the leather formed by the die, thereby reducing the adsorption force between the leather and the lower mold, making demoulding easier. Air blowing can assist the leather formed by the die to be demoulded smoothly from the complex parts of the lower mold, reducing product damage caused by forced demoulding.

[0023] Air blowing can quickly destroy the adsorption state between the leather and the lower mold, so that the leather formed by the mold can be quickly separated from the lower mold, shortening the demoulding time of each product. In the mass production process, the accelerated demoulding speed can improve the overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of the overall device of the present invention;

[0025] Figure 2 This is a schematic diagram of the structural positions of the lower mold and the support plate of the present invention;

[0026] Figure 3 It is a vertical cross-sectional schematic diagram of the bottom trough, support plate, spring and other structures of the present invention;

[0027] Figure 4 For the present invention Figure 3 The enlarged schematic diagram at A in the middle;

[0028] Figure 5 It is a transverse cross-sectional schematic diagram of the structure of the lower mold and the air groove of the present invention;

[0029] Figure 6 For the present invention Figure 5 The enlarged schematic diagram of point B in the middle;

[0030] Figure 7 For the present invention Figure 5 The enlarged schematic diagram at C in the middle;

[0031] Figure 8 For the present invention Figure 7 The enlarged schematic diagram at D in the middle;

[0032] Fig. 9 It is a transverse cross-sectional schematic diagram of the structure of the support block, through pipe, piston rod, etc. of the present invention;

[0033] Fig.10 For the present invention Fig. 9 Enlarged schematic diagram at point E in the middle.

[0034] In the figure:

[0035] 11. Pressing machine; 12. Hydraulic rod; 13. Loading plate; 14. Lower die; 15. Upper die; 16. Leather;

[0036] 21. Bottom slot; 22. Support plate; 23. Spring 1; 24. Through slot; 25. Side slider; 26. Spring 2; 27. Upper slider; 28. Limiting plate; 29. ​​Support column; 210. Inclined plate; 211. Inclined slider; 212. Lower slider; 213. Pressing plate; 214. Magnet 1; 215. Magnet 2; 216. Magnet 3;

[0037] 31. Support block; 32. Through pipe; 33. Piston rod; 34. Connecting rod; 35. Piston head; 36. Inlet pipe; 37. Exhaust pipe; 38. Air groove; 39. Air hole; 310. Air valve; 311. Limiting plate. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Embodiments provided by the present invention:

[0040] Among them: the luggage materials include leather 16, artificial leather, and plastic, and leather 16 is taken as an example here.

[0041] Embodiment 1:

[0042] See also Figures 1 to 7 As shown, a bag compression molding machine includes a compression molding machine 11 and leather 16. A hydraulic rod 12 is installed on the top of the compression molding machine 11, and the bottom telescopic end of the hydraulic rod 12 is fixedly connected to a supporting plate 13. A lower mold 14 is fixedly connected to the compression molding machine 11, and an upper mold 15 is fixedly connected to the lower surface of the supporting plate 13.

[0043] Wherein: the side where the die pressing machine 11 is connected to the lower die 14 is set as the operating surface.

[0044] Wherein: a plurality of guide posts are arranged on the operating surface of the molding machine 11 , and the carrying plate 13 is slidably connected with the guide posts of the molding machine 11 .

[0045] The die pressing machine 11 is provided with four clamping and stretching components in a rectangular array, and the clamping and stretching components include a bottom groove 21, the bottom groove 21 is provided on the operating surface of the die pressing machine 11, and a support plate 22 is slidably connected inside the bottom groove 21, and a spring 23 is provided inside the bottom groove 21, one end of the spring 23 is fixedly connected to the groove wall of the bottom groove 21, and the other end of the spring 23 is fixedly connected to the bottom end of the side of the support plate 22 away from the upper mold 15, and a through groove 24 is provided on the carrier plate 13, and the through groove 24 corresponds to the vertical position of the bottom groove 21, and a side slider 25 is slidably connected inside the through groove 24, and a spring 26 is provided inside the through groove 24, and one end of the spring 26 is fixedly connected to the groove wall of the through groove 24, and the other end of the spring 26 is fixedly connected to the side slider The block 25 is fixedly connected to the side away from the hydraulic rod 12, and the upper slider 27 is slidably connected inside the side slider 25. The top of the upper slider 27 is fixedly connected to the limiting plate 28, the top surface of the bearing plate 13 is fixedly connected to the support column 29, the top of the support column 29 is fixedly connected to the inclined plate 210, and the inclined slider 211 is slidably connected on the inclined plate 210. The bottom end of the upper slider 27 is slidably connected to the lower slider 212, and the bottom end of the lower slider 212 is fixedly connected to the pressure plate 213. The side of the bottom end of the upper slider 27 close to the hydraulic rod 12 is fixedly connected to the magnet 1 214, the side of the lower slider 212 close to the magnet 1 214 is fixedly connected to the magnet 215, and the bottom surface of the pressure plate 213 is embedded and fixedly connected to the magnet 3 216.

[0046] Among them: Reference Figure 6 As shown, a groove adapted to the support plate 22 is provided on the lower mold 14, and the shape of the support plate 22 is set to a trapezoid with oblique sides on both sides. Specifically, when in the initial state, that is, the molding operation has not started, the support plate 22 is located in the groove of the lower mold 14, and the upper surface of the support plate 22 is flush with the upper surface of the lower mold 14. A total of four support plates 22 are provided on the lower mold 14, and the four support plates 22 are arranged in a rectangular array on the lower mold 14, and the sides of the four support plates 22 are fitted together.

[0047] Among them: in the prior art, the lower mold 14 actually has a concave area in the middle that acts as a pressing mold, and the edge position of the lower mold 14 that does not belong to the concave area, specifically the position of the groove on the middle and lower mold 14 that is adapted to the support plate 22 as shown in Figure 6, which is the frame position of the lower mold 14. This position serves to determine the end point of the movement of the telescopic end of the hydraulic rod 12, and the frame position of the lower mold 14 provides support for the placement of the leather 16. Here, the frame position of the lower mold 14 is changed, and its function is replaced by the support plate 22, that is, the support plate 22 has the function of placing the leather 16 and determining the end point position of the telescopic end of the hydraulic rod 12.

[0048] Among them: the leathers 16 that need to be pressed have different sizes, but for the same set of pressing molds, the areas that need to be pressed are the same, that is, the areas where the leathers 16 of different sizes are actually pressed are the same. Specifically, when the leathers 16 of different sizes are placed on the support plate 22, they are all areas that do not need to be pressed, that is, the excess material area is in contact with the support plate 22.

[0049] The width of the limiting plate 28 is greater than the width of the through slot 24 , so as to prevent the upper slider 27 from being dislocated from the side slider 25 .

[0050] Among them: Reference Figure 7 As shown, one end of the inclined plate 210 away from the support column 29 is fixedly connected to the upper surface of the supporting plate 13, and the inclined plate 210 is arranged to be inclined with the side close to the support column 29 being higher and the side away from the support column 29 being lower. The bottom end of the inclined sliding block 211 is fixedly connected to the upper surface of the limiting plate 28, and the inclined sliding block 211 is sleeved on a position near the middle of the inclined plate 210.

[0051] Among them, the side of the magnet 2 215 that is close to the magnet 1 214 is set to have the same magnetic pole, specifically, the magnet 1 214 plays a role in repelling the lower slide plate 212 from approaching.

[0052] The pressing plate 213 and the supporting plate 22 have exactly the same shape and size, and the pressing plate 213 and the supporting plate 22 correspond to each other in the vertical direction.

[0053] Among them: the supporting plate 22 is made of iron material, and the magnet three 216 plays the role of magnetically attracting the supporting plate 22.

[0054] Among them: In the initial state, that is, before the die is pressed, the clamping and stretching components are in Figures 4 to 6 The usage status shown in is specifically as follows: the telescopic end of the hydraulic rod 12 is not extended, the leather 16 is not placed on the lower mold 14, the spring 1 23 and the spring 26 do not produce elastic deformation, the support plate 22 is embedded in the groove of the lower mold 14, the inclined sliding block 211 is located on the side of the inclined plate 210 away from the support column 29, and the lower sliding block 212 is on the side of the bottom end of the upper sliding block 27 away from the magnet 1 214.

[0055] When the clamping and stretching assembly is in use, the operator lays the leather 16 flat on the lower mold 14, and then controls the telescopic end of the hydraulic rod 12 to extend through the controller. As the telescopic end of the hydraulic rod 12 extends, the supporting plate 13 is driven to slide downward on the molding machine 11. The supporting plate 13 moves toward the operating surface of the molding machine 11, which drives the upper mold 15 to move closer to the lower mold 14.

[0056] As the carrying plate 13 moves downward, the carrying plate 13 drives the upper slider 27 to move downward synchronously. When the upper slider 27 moves downward to the point where the pressure plate 213 contacts the upper surface of the leather 16, the magnet 3 216 magnetically attracts the support plate 22 through the leather 16, and the leather 16 is clamped and limited by the magnet 3 216 and the support plate 22 that are magnetically attracted to each other. At this time, as the carrying plate 13 continues to move downward, the upper slider 27 applies pressure to the leather 16, so that the upper slider 27 cannot continue to move downward. At this time, the inclined slider 211 is squeezed by the inclined surface of the inclined plate 210 to move toward the direction of the support column 29 and move upward synchronously, and then as the inclined The lateral movement of the slider 211 drives the side slider 25 to move in the direction of the support column 29 inside the through slot 24, so that the side slider 25 squeezes the spring 26 to be compressed. When the side slider 25 moves laterally, it drives the upper slider 27 to move synchronously in the direction of the support column 29. At this time, the upper slider 27 is in the state of sliding upward inside the side slider 25 and sliding laterally in the direction of the support column 29. When the upper slider 27 moves laterally, it drives the lower slider 212 to move synchronously with the magnet 1 214. Since the magnet 1 214 repels the lower slider 212 through the magnet 2 215, the lower slider 212 and the upper slider 214 are moved together. The slider 27 moves laterally in the same direction. Specifically, the lower slide plate 212 moves the clamped leather 16 away from the center of the lower mold 14 through the magnet three 216, so that the support plate 22 moves away from the lower mold 14 synchronously, and the spring 1 23 is elastically compressed. At the same time, since there are four clamping and stretching components, the four clamping and stretching components work together at this time, so that the four sides of the leather 16 are clamped. Combined with the above, the clamped leather 16 is an area that does not need to be pressed, and is a residual material area. As the lower slide plate 212 drives the movement of the magnet three 216, the leather 16 is clamped. The four sides of the leather 16 are simultaneously subjected to forces away from the center, that is, the leather 16 is stretched on the four sides while being clamped, and uniform pulling force is applied to the four sides of the leather 16, so that the center position of the leather 16 corresponds to the center position of the lower mold 14, that is, the leather 16 is evenly covered on the lower mold 14, which can prevent the leather 16 from slightly curling or folding due to its own flexibility during the placement process, and the leather 16 from shifting on the lower mold 14, ensuring that the molding work of the molding machine 11 will not cause the shape and size of the bag after molding to not meet the design requirements due to the shift of the leather 16.

[0057] As the supporting plate 13 moves downward, when the upper mold 15 contacts the lower mold 14 through the leather 16, the molding is carried out. The molding machine 11 applies pressure to the upper mold 15 through the hydraulic rod 12, so that the leather 16 fits the contours of the lower mold 14 and the upper mold 15, thereby shaping the various components of the bag.

[0058] At the same time, by stretching the leather 16 on four sides while being clamped, the leather 16 can be tightened and flattened, effectively avoiding wrinkles, creases and other defects on the product surface after molding, and significantly reducing the defective rate in the luggage production process.

[0059] Due to the diversity of luggage materials and the size differences between luggage materials, the stretchability of different sizes and materials is different. Specifically, the tensile force that different materials can withstand is different. When using tighter materials for compression molding, refer to Figure 4 As shown, after the upper slider 27 drives the lower slider 212 to move and stretch the leather 16 for a distance, it will not be able to continue to drive the lower slider 212 to continue stretching the leather 16, and then the lower slider 212 will slide toward the magnet 1 214 at the bottom of the upper slider 27. At this time, the pressure provided by the hydraulic rod 12 will be higher than the repulsive force of the magnet 1 214 against the magnet 2 215, so that the lower slider 212 no longer drives the pressure plate 213 to move, that is, the magnet 2 215 will move closer to the magnet 1 214. Specifically, when the lower slider 212 is unable to continue to pull the die material, the lower slider 212 will no longer move synchronously with the upper slider 27, that is, the stretching of the clamping and stretching assembly will not cause damage to the die material. At the same time, it can be regarded as that, through the arrangement of the magnet 1 214 and the magnet 2 215, the clamping and stretching assembly can adapt to die materials of different sizes and materials, thereby ensuring the versatility of the clamping and stretching assembly.

[0060] When the die pressing is completed, the operator retracts the telescopic end of the hydraulic rod 12 through the controller, so that the upper die 15 is separated from the lower die 14. When the telescopic end of the hydraulic rod 12 is lifted to the point where the magnet three 216 no longer adsorbs the support plate 22 through the leather 16, the support plate 22 is pushed to slide and reset toward the lower die 14 under the elastic extension of the spring one 23. The upper slider 27 is pushed to slide and reset under the elastic extension of the spring two 26. At the same time, under the action of gravity, the upper slider 27 slides downward inside the side slider 25. When the upper slider 27 is reset, the limit plate 28 drives the inclined slider 211 to slide away from the support column 29. At this point, the clamping and stretching assembly is reset, and the operator takes out the leather 16 formed by the die pressing.

[0061] Embodiment 2:

[0062] During the use of the existing die pressing machine 11, a vacuum adsorption state may be formed between the leather 16 and the lower die 14. This is because the leather 16 fits tightly against the lower die 14 under the pressure of the hydraulic rod 12. When the pressure is released, the air cannot enter the gap between the leather 16 and the lower die 14 in time, causing the die-formed leather 16 to be adsorbed on the lower die 14, making it difficult for the leather 16 to be separated from the lower die 14. At the same time, if the shape of the lower die 14 is complex, such as deep grooves, internal protrusions or thin-walled structures, these parts are easy to interfere with the die-formed leather 16 during demolding. During demolding, it is easy to be difficult to detach smoothly due to the obstruction of the complex shape, which will significantly slow down the production speed. If demolding is forced, the product may be subjected to uneven external force, resulting in changes in size, resulting in an increase in the defective rate of the finished luggage products formed by the die.

[0063] Reference Figures 7 to 10 As shown, in order to solve the above-mentioned problems, two demoulding components are symmetrically arranged on the molding machine 11, and the demoulding components include a support block 31, the support block 31 is fixedly connected to the supporting plate 13, the top of the support block 31 is fixedly connected with a through pipe 32, the end of the through pipe 32 close to the support column 29 is slidably connected with a piston rod 33, the end of the piston rod 33 close to the support column 29 is fixedly connected with a connecting rod 34, the end of the piston rod 33 away from the connecting rod 34 is fixedly connected with a piston head 35, the end of the through pipe 32 away from the connecting rod 34 is fixedly connected with an intake pipe 36 and an exhaust pipe 37, the molding machine 11 and the lower mold 14 are jointly provided with an air groove 38, the lower mold 14 is provided with an air hole 39, the intake pipe 36 and the exhaust pipe 37 are each provided with an air valve 310, and the inner walls of the intake pipe 36 and the exhaust pipe 37 are each fixedly connected with a limiting plate 311.

[0064] Wherein: the bottom end of the connecting rod 34 is fixedly connected to the top end of the inclined sliding block 211 .

[0065] The piston head 35 and the through pipe 32 form a piston structure, and the material of the piston head 35 is set to be rubber.

[0066] One end of the exhaust pipe 37 away from the through pipe 32 is fixedly connected to the air groove 38 , and the exhaust pipe 37 is fixedly connected to the supporting plate 13 and the molding machine 11 .

[0067] Among them: the top surface of the air hole 39 is flush with the bottom of the inner wall of the lower mold 14, the air hole 39 is connected to the air groove 38, and the air hole 39 is located at the frame position of the lower mold 14, that is, the air hole 39 is not in the pressing area of ​​the lower mold 14, and the air hole 39 is in the residual material area of ​​the leather 16.

[0068] Among them: the air valve 310 is divided into a rotating shaft and two valve plates, the two valve plates are rotatably connected to the rotating shaft through a torsion spring, the rotating shaft of the air valve 310 is fixedly connected to the inner walls of the intake pipe 36 and the exhaust pipe 37, and the valve plate diameter of the air valve 310 is adapted to the inner diameters of the intake pipe 36 and the exhaust pipe 37. Specifically: when the two valve plates are not rotating on the rotating shaft, the two valve plates are in a flush state, and the two valve plates seal the inside of the intake pipe 36 or the exhaust pipe 37.

[0069] Among them: Reference Figure 8 and Fig.10 As shown, the limiting plate 311 and the air valve 310 located on the same side are fitted together, the limiting plate 311 located inside the air intake pipe 36 is at the top of the air valve 310, and the limiting plate 311 located inside the exhaust pipe 37 is at the bottom of the air valve 310. Specifically, the limiting plate 311 located inside the air intake pipe 36 limits the rotation of the air valve 310, so that the air valve 310 inside the air intake pipe 36 can only rotate downward, while the limiting plate 311 in the exhaust pipe 37 allows the air valve 310 inside it to only rotate upward.

[0070] In the initial state, specifically, the inclined slider 211 is on the side of the inclined plate 210 away from the support column 29, and the demoulding assembly is in Figure 7 and Figure 8 In the state shown in FIG. 1 , the connecting rod 34 is in contact with the outer wall of the through tube 32 , and the piston head 35 is located on a side of the through tube 32 away from the connecting rod 34 .

[0071] When the demoulding assembly is in use, there are two use stages. The first stage is during the operation of the clamping and stretching assembly, specifically, the inclined slide block 211 slides on the inclined plate 210 toward the direction of the support column 29. At this time, the inclined slide block 211 drives the connecting rod 34 to slide synchronously toward the side away from the piston head 35. At the same time, the connecting rod 34 drives the piston head 35 to move toward the connecting rod 34 through the through pipe 32. As the piston head 35 moves, the piston head 35 draws air toward the end of the through pipe 32 away from the connecting rod 34, so that the air valve 310 located inside the air intake pipe 36 flips downward and opens. Specifically, the two valve plates of the air valve 310 rotate downward and elastically deform the torsion spring. The air valve 310 located inside the exhaust pipe 37 cannot be flipped downward and opened due to the restriction of the limiting plate 311. At this time, the top of the intake pipe 36 is connected to the external environment. At this time, the movement of the piston head 35 can draw air from the outside into the through pipe 32 through the intake pipe 36. When the piston rod 33 is pulled out to the limit, the piston head 35 no longer slides, that is, the through pipe 32 no longer draws air from the outside. At this time, under the elastic reset action of the torsion spring of the air valve 310, the valve plate of the air valve 310 inside the intake pipe 36 rotates and resets, that is, the top of the intake pipe 36 is isolated from the outside. Specifically, the inside of the through pipe 32 is in a closed environment at this time.

[0072] The second stage is in the process of resetting the clamping and stretching assembly, specifically, the inclined slider 211 slides on the inclined plate 210 toward the piston head 35, and at this time the leather 16 is molded, with the movement of the inclined slider 211, the piston head 35 slides inside the through pipe 32 in the direction away from the support column 29, that is, the air inside the through pipe 32 is pushed toward the end of the through pipe 32 away from the connecting rod 34, and at this time the air valve 310 inside the exhaust pipe 37 flips upward, and at the same time, the torsion spring of the air valve 310 produces elastic deformation, and the pushed air flows from the exhaust pipe 37 to the side away from the through pipe 32, when the clamping and stretching assembly is completely reset, the piston head 35 no longer moves, and the torsion spring of the air valve 310 elastically resets, so that the air valve 310 inside the exhaust pipe 37 flips and resets.

[0073] During the process of air flowing inside the exhaust pipe 37, the air flows to the top surface of the lower mold 14 through the exhaust pipe 37 and the air groove 38, and is ejected toward the top of the lower mold 14 through the air hole 39. The ejected air flows between the fitting surface of the lower mold 14 and the leather 16, destroying the vacuum environment between the lower mold 14 and the leather 16 formed by the compression mold, thereby reducing the adsorption force between the leather 16 and the lower mold 14, making demolding easier. Air blowing can assist the compression molded leather 16 to be smoothly demolded from the complex parts of the lower mold 14, thereby reducing product damage caused by forced demolding.

[0074] At the same time, air blowing can quickly destroy the adsorption state between the leather 16 and the lower mold 14, so that the leather 16 formed by the compression molding can be quickly separated from the lower mold 14, shortening the demoulding time of each product. In the batch production process, the accelerated demoulding speed can improve the overall production efficiency.

[0075] It should be noted that, in this article, relational terms such as first and second, etc. are only used 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", "comprise" or any other variants 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. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0076] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bag compression molding machine, comprising a compression molding machine (11) and leather (16), a hydraulic rod (12) is installed on the top of the compression molding machine (11), a bottom telescopic end of the hydraulic rod (12) is fixedly connected to a bearing plate (13), a lower mold (14) is fixedly connected to the compression molding machine (11), an upper mold (15) is fixedly connected to the lower surface of the bearing plate (13), and a surface of the compression molding machine (11) connected to the lower mold (14) is set as an operating surface, characterized in that: The die pressing machine (11) is provided with four clamping and stretching components in a rectangular array, the clamping and stretching components comprising a bottom groove (21), the bottom groove (21) being provided on the operating surface of the die pressing machine (11), a support plate (22) being slidably connected inside the bottom groove (21), a spring (23) being provided inside the bottom groove (21), one end of the spring (23) being fixedly connected to the groove wall of the bottom groove (21), the other end of the spring (23) being fixedly connected to the bottom end of the side of the support plate (22) away from the upper mold (15), a through groove (24) being provided on the carrier plate (13), the through groove (24) being vertically corresponding to the bottom groove (21), a side slide block (25) being slidably connected inside the through groove (24), a spring (26) being provided inside the through groove (24), one end of the spring (26) being fixedly connected to the groove wall of the through groove (24), the other end of the spring (26) being fixedly connected to the side slide block (25), The block (25) is fixedly connected to a side away from the hydraulic rod (12); an upper slider (27) is slidably connected inside the side slider (25); a top end of the upper slider (27) is fixedly connected to a limiting plate (28); a top surface of the bearing plate (13) is fixedly connected to a support column (29); a top end of the support column (29) is fixedly connected to an inclined plate (210); an inclined slider (211) is slidably connected to the inclined plate (210); a bottom end of the upper slider (27) is slidably connected to a lower slider (212); a bottom end of the lower slider (212) is fixedly connected to a pressure plate (213); a side of the bottom end of the upper slider (27) close to the hydraulic rod (12) is fixedly connected to a magnet 1 (214); a side of the lower slider (212) close to the magnet 1 (214) is fixedly connected to a magnet 2 (215); and a bottom surface of the pressure plate (213) is embedded and fixedly connected to a magnet 3 (216).

2. A bag compression molding machine according to claim 1, characterized in that: The molding machine (11) is symmetrically provided with two demoulding assemblies, the demoulding assemblies comprising a support block (31), the support block (31) being fixedly connected to the bearing plate (13), the top end of the support block (31) being fixedly connected to a through pipe (32), the end of the through pipe (32) close to the support column (29) being slidably connected to a piston rod (33), the end of the piston rod (33) close to the support column (29) being fixedly connected to a connecting rod (34), the end of the piston rod (33) away from the connecting rod (34) being fixedly connected to a movable The plug (35) is fixedly connected to an air inlet pipe (36) and an exhaust pipe (37) at one end of the through pipe (32) away from the connecting rod (34); an air groove (38) is provided on the die press (11) and the lower die (14); an air hole (39) is provided on the lower die (14); an air valve (310) is provided inside the air inlet pipe (36) and the exhaust pipe (37); and a limiting plate (311) is fixedly connected to the inner wall of the air inlet pipe (36) and the exhaust pipe (37).

3. A bag compression molding machine according to claim 1, characterized in that: The through groove (24) corresponds to the bottom groove (21) in vertical position, one end of the second spring (26) is fixedly connected to the groove wall of the through groove (24), and the other end of the second spring (26) is fixedly connected to the side of the side slide block (25) away from the hydraulic rod (12).

4. A bag compression molding machine according to claim 1, characterized in that: The lower die (14) is provided with a groove adapted to the support plate (22), and the shape of the support plate (22) is set to be a trapezoid with oblique edges on both sides.

5. A bag compression molding machine according to claim 1, characterized in that: One end of the inclined plate (210) away from the support column (29) is fixedly connected to the upper surface of the bearing plate (13); the inclined plate (210) is arranged so that the side close to the support column (29) is higher and the side away from the support column (29) is lower; the bottom end of the inclined sliding block (211) is fixedly connected to the upper surface of the limiting plate (28); and the inclined sliding block (211) is sleeved on the inclined plate (210).

6. A bag compression molding machine according to claim 1, characterized in that: The side of the second magnet (215) close to the first magnet (214) is set to have the same magnetic pole.

7. A bag compression molding machine according to claim 1, characterized in that: The pressing plate (213) and the supporting plate (22) have the same shape and size, and the pressing plate (213) and the supporting plate (22) correspond to each other in the vertical direction. The supporting plate (22) is made of iron.

8. A bag compression molding machine according to claim 2, characterized in that: The bottom end of the connecting rod (34) is fixedly connected to the top end of the inclined sliding block (211), the piston head (35) and the through pipe (32) form a piston structure, and the material of the piston head (35) is set to be rubber.

9. A bag compression molding machine according to claim 2, characterized in that: One end of the exhaust pipe (37) away from the through pipe (32) is fixedly connected to the air groove (38), and the exhaust pipe (37) is fixedly connected to the bearing plate (13) and the compression molding machine (11).

10. A bag compression molding machine according to claim 2, characterized in that: The top surface of the air hole (39) is flush with the bottom of the inner wall of the lower mold (14); the limiting plate (311) and the air valve (310) located on the same side are in contact with each other; the limiting plate (311) located inside the air inlet pipe (36) is located at the top of the air valve (310); and the limiting plate (311) located inside the exhaust pipe (37) is located at the bottom of the air valve (310).

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