阅读说明：本技术 一种安全鞋生产设备的鞋帮套设模具装置 (Upper sleeve setting die device of safety shoe production equipment ) 是由 吕定根 孔秋丽 于 2020-07-17 设计创作，主要内容包括：本发明属于鞋帮套设模具技术领域,具体的说是一种安全鞋生产设备的鞋帮套设模具装置,包括模具本体；所述模具本体由本体部与脚尖部组成,所述本体部端部设置有滑腔,所述脚尖部内端与滑腔滑动相连,所述脚尖部的侧面上设置有滑槽,所述滑槽内部滑动连接有活动板,所述脚尖部上分别设置有一号气道与二号气道,所述本体部上开设有进气道；所述滑腔底面上设置有限位槽,所述脚尖部底面上设置有限位块；本发明通过将模具本体设置成脚尖部与本体部活动相连的形式,使得脚尖部在鞋帮脱模时能够缩入本体部内部并不对其脱模产生干涉,同时也能使得鞋帮在套模时更加方便,从而大大提高了鞋帮套设模具在使用时的便捷性与高效性。(The invention belongs to the technical field of upper sleeve molds, and particularly relates to an upper sleeve mold device of safety shoe production equipment, which comprises a mold body; the mould body consists of a body part and a toe part, a sliding cavity is arranged at the end part of the body part, the inner end of the toe part is connected with the sliding cavity in a sliding way, a sliding groove is arranged on the side surface of the toe part, a movable plate is connected inside the sliding groove in a sliding way, a first air passage and a second air passage are respectively arranged on the toe part, and an air inlet channel is arranged on the body part; a limiting groove is formed in the bottom surface of the sliding cavity, and a limiting block is arranged on the bottom surface of the tiptoe part; according to the invention, the mould body is set in a mode that the toe part is movably connected with the body part, so that the toe part can be retracted into the body part when the upper is demoulded and does not interfere with the demoulding, and the upper can be more conveniently sleeved when the mould is sleeved, thereby greatly improving the convenience and the high efficiency of the upper sleeved mould when in use.)

1. A mould device for an upper sleeve of safety shoe production equipment comprises a mould body (1); the method is characterized in that: the mold comprises a mold body (1) and a toe portion (3), wherein the mold body is composed of a body portion (2) and the toe portion (3) which are movably connected, a sliding cavity (21) is arranged at the end portion of the body portion (2) corresponding to the toe portion (3), the inner end of the toe portion (3) is connected with the sliding cavity (21) in a sliding mode, the toe portion (3) is made of rubber materials and is in interference fit with the side wall of the sliding cavity (21), sliding grooves (31) are formed in the peripheral side surfaces of the toe portion (3) respectively, movable plates (32) are connected inside the sliding grooves (31) in a sliding mode, the movable plates (32) are made of rubber materials and are in interference fit with the sliding grooves (31), a first spring (33) is connected between the bottom end of the movable plates (32) and the bottom surface of the sliding grooves (31), a first air passage (34) is arranged in the middle of the side surface of the inner end of the toe portion (3), and a, an air inlet channel (22) communicated with the sliding cavity (21) is formed on the body part (2); sliding cavity (21) bottom surface middle part is provided with spacing groove (23), be provided with on tiptoe portion (3) bottom surface with spacing groove (23) matched with stopper (36), when stopper (36) move to laminating mutually with the outer end lateral wall of spacing groove (23), the inner lateral wall of spout (31) flushes with the tip of sliding cavity (21) mutually.

2. The upper cover setting die device of the safety shoe production equipment according to claim 1, characterized in that: the symmetry is provided with baffle (24) of L shape on the side of tiptoe portion (3) inner, sliding connection has slide (25) in the clearance between baffle (24) and tiptoe portion (3) lateral wall, slide (25) middle part seted up with air flue (34) matched with air inlet (26), it has magnet (27) that can carry out the absorption to slide (25) top to inlay on sliding chamber (21) top surface, when slide (25) move to magnet (27) position and adsorbed by it, air inlet (26) are linked together with air flue (34).

3. The upper cover setting die device of the safety shoe production equipment according to claim 1, characterized in that: the utility model discloses a shoe sole, including this body part (2), this body part (2) is last swing joint has heel portion (4) of rubber material, this body part (2) is provided with cooperation groove (41) with heel portion (4) corresponding position department, heel portion (4) and cooperation groove (41) interference fit and can freely slide in it, be connected with No. two spring (42) between heel portion (4) bottom and cooperation groove (41) bottom surface, the symmetry is provided with No. three air flue (43) that are linked together with sliding chamber (21) on cooperation groove (41) bottom surface, No. three air flue (43) are close to the one end sliding connection of sliding chamber (21) and have piston (44), symmetrical connection has depression bar (45) with No. three air flue (43) matched with on baffle (24) side.

4. The upper cover setting die device of the safety shoe production equipment according to claim 1, characterized in that: intake duct (22) top is connected with flexible trachea (5), the other end opening and slide (25) bottom surface of trachea (5) link firmly mutually, just slide (25) are half of trachea (5) opening total area to trachea (5) open-ended sheltering from the area.

5. The upper cover setting die device of the safety shoe production equipment according to claim 1, characterized in that: the side walls of the sliding grooves (31) are connected with positioning blocks (6), and L-shaped positioning plates (61) matched with the positioning blocks (6) are arranged on the bottom surfaces of the movable plates (32).

6. The upper cover setting die device of the safety shoe production equipment according to claim 5, characterized in that: and inclined guide surfaces (7) are arranged at one ends of the top surfaces of the movable plates (32) close to the sliding cavity (21).

Technical Field

The invention belongs to the technical field of upper sleeving molds, and particularly relates to an upper sleeving mold device of safety shoe production equipment.

Background

Have the mould among the safety shoes production facility, the mould supplies the upper of a shoe cover to establish, and the upper of a shoe that the cover was established on the mould gets into each mechanism, process in the shoes production facility and carries out shoes production, for example carries out the napping with the upper of a shoe, and the mould that is located on the upper of a shoe cooperates with the sole in the injection mold of below again. The upper of a shoe is established on the mould, and it is comparatively troublesome to take off, especially after the upper of a shoe is connected the sole, takes off more troublesome.

Disclosure of Invention

In order to make up the defects of the prior art, the invention provides the upper sleeve mold device of the safety shoe production equipment, the mold body is arranged in a mode that the toe part is movably connected with the body part, so that the toe part can be retracted into the body part and does not interfere with the demolding of the upper when the upper is demolded, and meanwhile, the upper is more convenient to sleeve the mold, thereby greatly improving the convenience and the high efficiency of the upper sleeve mold when the upper sleeve mold is used.

The technical scheme adopted by the invention for solving the technical problems is as follows: a mould device for an upper sleeve of safety shoe production equipment comprises a mould body; the mold body consists of a body part and a tiptoe part which are movably connected, a sliding cavity is arranged at the end part of the body part corresponding to the tiptoe part, the inner end of the tiptoe part is connected with the sliding cavity in a sliding way, the tiptoe part is made of rubber materials and is in interference fit with the side wall of the sliding cavity, sliding grooves are respectively arranged on the peripheral side surfaces of the tiptoe part, movable plates are connected in the sliding grooves in a sliding way, the movable plates are made of rubber materials and are in interference fit with the sliding grooves, springs are respectively connected between the bottom ends of the movable plates and the bottom surfaces of the sliding grooves, a first air passage is arranged in the middle of the side surface of the inner end of the tiptoe part, a second air passage communicated with the sliding grooves is respectively arranged on the side wall of the; a limiting groove is formed in the middle of the bottom surface of the sliding cavity, a limiting block matched with the limiting groove is arranged on the bottom surface of the tiptoe part, and when the limiting block moves to be attached to the side wall of the outer end of the limiting groove, the side wall of the inner end of the sliding groove is flush with the end part of the sliding cavity; when the shoe upper sleeve mold device works, although the upper sleeve mold device in the prior art can enable the upper sleeve mold and demolding to be more convenient and rapid, after the upper is connected with the sole, the protruding area corresponding to the tiptoe on the mold is easy to interfere with the mold when the shoe is taken off from the mold, so that the processed shoe is conveniently and efficiently taken out from the mold; when the upper cover is in work, the external air pump is connected with the air inlet channel on the body part, so that the air pump can inflate or exhaust air into the sliding cavity through the air inlet channel, when the mould is required to position and fix the upper in work, the sliding cavity is inflated through the air pump, the pressure inside the sliding cavity is increased, the toe part is driven to slide out of the sliding cavity, the toe part can drive the limiting block to synchronously slide in the limiting groove when sliding, when the limiting block moves to be attached to the outer end side wall of the limiting groove, the toe part can drive the inner end side wall of the sliding groove to be flush with the end part of the sliding cavity, and as the gas inside the sliding cavity can respectively apply pressure to the movable plates inside the sliding groove through the first air channel and the second air channel, the movable plates can respectively slide towards the outer end of the sliding groove and are aligned with the outer surface of the body part, the sliding plates protruding around the tiptoe part can fill the vacant part between the tiptoe part and the body part, so that the outer surface of the mould body can be more effectively matched with the shape of the sleeved upper and can play a more comprehensive positioning effect on the upper, when the upper and the sole are machined and formed and need to be taken down from the mould body, the inside of the sliding cavity is not inflated by the air pump, the movable plate is reset to the inside of the sliding groove under the action of the rebound force of a spring, the sliding cavity is pumped by the air pump, the tiptoe part can slide to the inside of the sliding cavity under the action of the pressure inside and outside the sliding cavity, the tiptoe part does not interfere with the shoes taken down from the mould body, and the tiptoe part and the body part are movably connected, so that the upper can be conveniently and quickly sleeved on the body part in advance during positioning, the effective positioning and fixing effect on the upper is achieved through the slipping-off of the toe part from the inside of the body part, so that the upper is more convenient and quicker to sleeve and demold.

Preferably, the side surface of the inner end of the tiptoe part is symmetrically provided with an L-shaped baffle, a sliding plate is connected in a sliding manner in a gap between the baffle and the side wall of the tiptoe part, the middle part of the sliding plate is provided with an air inlet matched with the first air passage, the top surface of the sliding cavity is embedded with a magnet capable of adsorbing the top end of the sliding plate, and when the sliding plate moves to the position of the magnet and is adsorbed by the magnet, the air inlet is communicated with the first air passage; when the foot tip part is driven to move to the magnet by the toe part, the magnet can attract the sliding plate and drive the sliding plate to move upwards to the position where the sliding plate is attached to the magnet, the sliding plate can drive the air inlet to move to the position communicated with the air passage, and the movable plate can also move to the outer end of the sliding cavity right at the moment, so that the movable plate can smoothly work under the communication between the air inlet and the air passage, and the effectiveness and the stability of the upper sleeve setting mold during working are effectively improved.

Preferably, the heel part made of rubber is movably connected to the body part, a matching groove is formed in the position, corresponding to the heel part, of the body part, the heel part is in interference fit with the matching groove and can freely slide in the matching groove, a second spring is connected between the bottom end of the heel part and the bottom surface of the matching groove, a third air passage communicated with the sliding cavity is symmetrically formed in the bottom surface of the matching groove, a piston is slidably connected to one end, close to the sliding cavity, of the third air passage, and pressing rods matched with the third air passage are symmetrically connected to the side surface of the baffle plate; the during operation, when the upper of a shoe carries out the drawing of patterns, this moment along with tiptoe portion to the inside slip of smooth chamber for tiptoe portion can drive the depression bar on the baffle and insert gradually to No. three air flues, and the depression bar can extrude through the piston to in No. three air flues this moment, makes its heel portion that drives the other end jack-up shoes to the gliding in-process of cooperation groove outer end, thereby makes shoes can break away from with the mould body more convenient and fast.

Preferably, the top end of the air inlet channel is connected with a flexible air pipe, an opening at the other end of the air pipe is fixedly connected with the bottom surface of the sliding plate, and the shielding area of the sliding plate for the opening of the air pipe is half of the total area of the opening of the air pipe; during operation, although foretell magnet can adsorb the slide and drive its motion, nevertheless because there is the clearance between magnet and the slide, and the slide also closely the pressfitting on tiptoe side under the effect of sliding chamber inside pressure, make the slide have the unstable phenomenon of motion under the effect of magnet, the trachea through setting up and trachea and the connected mode of slide this moment, make the trachea can normally inflate or deflate to the sliding chamber inside, also can make from the trachea in spun air current can exert ascending effect down to the slide bottom, thereby make the slide can upwards slide in the baffle before adsorbing with magnet in advance, thereby make the slide can carry out more effective motion under the dual function of trachea and magnet, further improved upper of a shoe cover and establish the stability of mould at the during operation.

Preferably, the side walls of the sliding chutes are connected with positioning blocks, and the bottom surfaces of the movable plates are provided with L-shaped positioning plates matched with the positioning blocks; during operation, in order to make the fly leaf align with the body portion side of one side more effectually when the upper location, this moment through locating piece and the locating plate that sets up for the fly leaf can drive locating plate synchronous motion when sliding to the spout outer end, when the locating plate bottom surface moves to laminating with the locating piece bottom surface, the surface of fly leaf can align with the surface of body portion just this moment, reduce the surface protrusion of fly leaf to this body portion outer end and produce the influence to the location of upper of a shoe, thereby further improved the operating mass with the mould is established to the upper of a shoe cover.

Preferably, one end of the top surface of the movable plate, which is close to the sliding cavity, is provided with an inclined guide surface; when the shoe cover is in work, when the toe part drives the movable plate to slide into the sliding cavity, if the movable plate is not reset in place and is higher than the inner wall of the sliding cavity, the side wall of the movable plate interferes with the end face of the sliding cavity when in motion, so that the toe part is influenced to smoothly slide into the sliding cavity, and at the moment, the toe part smoothly slides into the sliding cavity through the arranged guide surface.

The invention has the following beneficial effects:

1. according to the invention, the mould body is set in a mode that the toe part is movably connected with the body part, so that the toe part can be retracted into the body part when the upper is demoulded and does not interfere with the demoulding, and the upper can be more conveniently sleeved when the mould is sleeved, thereby greatly improving the convenience and the high efficiency of the upper sleeved mould when in use.

2. According to the shoe upper sleeve die, the baffle plate and the sliding plate are arranged on the toe part, so that the phenomenon that the toe part slides smoothly due to overlarge friction between the movable plate and the side wall of the sliding cavity is reduced while the movable plate can work smoothly is guaranteed, and the effectiveness and the stability of the shoe upper sleeve die during working are greatly improved.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is an enlarged view at A in FIG. 2;

in the figure: the mold comprises a mold body 1, a body 2, a sliding cavity 21, an air inlet 22, a limiting groove 23, a baffle 24, a sliding plate 25, an air inlet 26, a magnet 27, a toe part 3, a sliding chute 31, a movable plate 32, a first spring 33, a first air passage 34, a second air passage 35, a limiting block 36, a heel part 4, a matching groove 41, a second spring 42, a third air passage 43, a piston 44, a pressure rod 45, an air pipe 5, a positioning block 6, a positioning plate 61 and a guide surface 7.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the following embodiments.

As shown in fig. 1 to 3, the upper cover mold device of the safety shoe production equipment according to the present invention includes a mold body 1; the mold body 1 comprises a body part 2 and a toe part 3 which are movably connected, a sliding cavity 21 is arranged at the end part of the body part 2 corresponding to the toe part 3, the inner end of the toe part 3 is connected with the sliding cavity 21 in a sliding manner, the toe part 3 is made of rubber materials and is in interference fit with the side wall of the sliding cavity 21, sliding grooves 31 are respectively arranged on the peripheral side surfaces of the toe part 3, movable plates 32 are respectively connected in the sliding grooves 31 in a sliding manner, the movable plates 32 are made of rubber materials and are in interference fit with the sliding grooves 31, a first spring 33 is respectively connected between the bottom end of each movable plate 32 and the bottom surface of each sliding groove 31, a first air passage 34 is arranged in the middle of the side surface of the inner end of the toe part 3, a second air passage 35 communicated with the sliding grooves 31 is respectively arranged on the side wall of the inner end of each first air; a limiting groove 23 is formed in the middle of the bottom surface of the sliding cavity 21, a limiting block 36 matched with the limiting groove 23 is arranged on the bottom surface of the toe portion 3, and when the limiting block 36 moves to be attached to the outer end side wall of the limiting groove 23, the inner end side wall of the sliding groove 31 is flush with the end portion of the sliding cavity 21; when the shoe upper sleeve mold device works, although the upper sleeve mold device in the prior art can enable the upper sleeve mold and demolding to be more convenient and rapid, after the upper is connected with the sole, the protruding area corresponding to the tiptoe on the mold is easy to interfere with the mold when the shoe is taken off from the mold, so that the processed shoe is conveniently and efficiently taken out from the mold; when the mold for the shoe upper sleeve is in work, an external air pump is connected with the air inlet channel 22 on the body part 2, so that the air pump can inflate or deflate the interior of the sliding cavity 21 through the air inlet channel 22, when the mold is required to position and fix the shoe upper in work, the sliding cavity 21 is inflated through the air pump, the pressure intensity in the sliding cavity 21 is increased, the toe part 3 is driven to slide out of the sliding cavity 21, the toe part 3 can drive the limiting block 36 to synchronously slide in the limiting groove 23 during sliding, when the limiting block 36 moves to be attached to the outer end side wall of the limiting groove 23, the toe part 3 can drive the inner end side wall of the sliding groove 31 to be flush with the end part of the sliding cavity 21, and because the air in the sliding cavity 21 can respectively apply pressure to the movable plate 32 in the sliding groove 31 through the first air channel 34 and the second air channel 35, the movable plate 32 can respectively slide to the sliding groove 31 and align with the outer surface of the body part, at this time, the protruded sliding plate 25 around the toe portion 3 can fill the gap between the toe portion 3 and the body portion 2, so that the outer surface of the mold body 1 can be more effectively matched with the shape of the sleeved upper and can play a more comprehensive positioning effect on the upper, when the upper and the sole are formed and need to be taken down from the mold body 1, the inside of the sliding cavity 21 is not inflated by the air pump, the movable plate 32 is reset to the inside of the sliding groove 31 under the action of the rebound force of the first spring 33, and the sliding cavity 21 is pumped by the air pump, so that the toe portion 3 can slide to the inside of the sliding cavity 21 under the action of the pressure inside and outside the sliding cavity 21, at this time, the toe portion 3 does not interfere with the shoe taken down from the mold body 1, and the toe portion 3 and the body portion 2 are movably connected, so that the upper can be conveniently and quickly sleeved in the body portion 2 in advance when being positioned, the effective positioning and fixing effect on the upper is achieved through the slipping-off of the toe part 3 from the inside of the body part 2, so that the upper is more convenient and quicker to sleeve and demould.

As an embodiment of the invention, L-shaped baffles 24 are symmetrically arranged on the side surfaces of the inner ends of the tiptoe parts 3, sliding plates 25 are slidably connected in gaps between the baffles 24 and the side walls of the tiptoe parts 3, air inlets 26 matched with first air passages 34 are formed in the middle parts of the sliding plates 25, magnets 27 capable of adsorbing the top ends of the sliding plates 25 are embedded on the top surfaces of the sliding cavities 21, and when the sliding plates 25 move to the positions of the magnets 27 and are adsorbed by the magnets, the air inlets 26 are communicated with the first air passages 34; when the sole is in operation, when the air pressure inside the sliding cavity 21 is increased and drives the toe portion 3 to slide, at this time, the air pressure inside the sliding cavity 21 can synchronously apply pressure to the movable plate 32 through the first air passage 34 and the second air passage 35, so that the sliding friction between the movable plate 32 and the side wall of the sliding cavity 21 is increased to influence the smooth sliding of the toe portion 3, at this time, by arranging the baffle 24 and the sliding plate 25 on the toe portion 3, when the toe portion 3 is located inside the sliding cavity 21, the bottom end of the sliding plate 25 is attached to the bottom surface of the sliding cavity 21, and simultaneously, the air inlet 26 on the sliding plate 25 is staggered with the first air passage 34, at this time, the sliding plate 25 can play a role in blocking the first air passage 34, so that the air inside the sliding cavity 21 flows into the first air passage 34 to act on the movable plate 32, so that the friction between the movable plate 32 and the side wall of the sliding cavity 21 is too large to influence the smooth sliding of, magnet 27 can attract slide 25 and drive its upward movement to the position department of laminating mutually with magnet 27 this moment for slide 25 can drive air inlet 26 and move to the position department that is linked together with an air flue 34, and fly leaf 32 also can move to smooth chamber 21 outer end just this moment, thereby makes fly leaf 32 can work smoothly under the intercommunication of air inlet 26 and an air flue 34, thereby the effectual validity and the stability of establishing the mould at the during operation of upper of a shoe cover have been improved.

As an embodiment of the present invention, a heel portion 4 made of rubber is movably connected to the body portion 2, a matching groove 41 is disposed at a position of the body portion 2 corresponding to the heel portion 4, the heel portion 4 is in interference fit with the matching groove 41 and can freely slide in the matching groove, a second spring 42 is connected between a bottom end of the heel portion 4 and a bottom surface of the matching groove 41, third air passages 43 communicated with the sliding cavity 21 are symmetrically disposed on the bottom surface of the matching groove 41, a piston 44 is slidably connected to one end of the third air passages 43 close to the sliding cavity 21, and compression rods 45 matched with the third air passages 43 are symmetrically connected to a side surface of the baffle plate 24; the during operation, when the upper of a shoe carries out the drawing of patterns, this moment along with tiptoe portion 3 to the inside slip of smooth chamber 21 for tiptoe portion 3 can drive depression bar 45 on the baffle 24 and insert gradually to No. three air flue 43, depression bar 45 can extrude through the piston 44 to in No. three air flue 43 this moment, make its heel portion 4 that drives the other end in to the gliding in-process of cooperation groove 41 outer end with shoes jack-up, thereby make shoes can break away from with mould body 1 more convenient and fast.

As an embodiment of the present invention, the top end of the air inlet 22 is connected with a flexible air pipe 5, an opening at the other end of the air pipe 5 is fixedly connected with the bottom surface of the sliding plate 25, and the shielding area of the sliding plate 25 for the opening of the air pipe 5 is half of the total area of the opening of the air pipe 5; in operation, although the magnet 27 can attract the slide plate 25 and drive it to move, however, because there is a gap between the magnet 27 and the slider 25, and the slider 25 is tightly pressed against the side of the toe portion 3 by the pressure inside the slide chamber 21, the sliding plate 25 has unstable movement under the action of the magnet 27, and at this time, through the connection mode of the air pipe 5, the air pipe 5 and the sliding plate 25, so that the air pipe 5 can normally inflate or deflate the inside of the sliding cavity 21, and simultaneously, the air flow sprayed out of the air pipe 5 can exert an upward action on the bottom end of the sliding plate 25, so that the slide plate 25 can be slid upward in the shutter 24 in advance before being attracted to the magnet 27, thereby make slide 25 can carry out more effective motion under the dual function of trachea 5 and magnet 27, further improved the upper of a shoe cover and established the mould stability at the during operation.

As an embodiment of the present invention, the side walls of the sliding grooves 31 are connected with positioning blocks 6, and the bottom surface of the movable plate 32 is provided with an L-shaped positioning plate 61 matched with the positioning blocks 6; during operation, in order to align the movable plate 32 with the lateral surface of the main body 2 on one side more effectively when the movable plate 32 is used for positioning the upper, the movable plate 32 can drive the positioning plate 61 to move synchronously when sliding towards the outer end of the sliding groove 31 through the arranged positioning block 6 and the positioning plate 61, when the bottom surface of the positioning plate 61 moves to be attached to the bottom surface of the positioning block 6, the outer surface of the movable plate 32 can be aligned with the outer surface of the main body 2 right now, the influence on the positioning of the upper caused by the protrusion of the outer surface of the movable plate 32 to the outer end of the main body 2 is reduced, and the working quality of the upper sleeve mold is.

As an embodiment of the present invention, an inclined guide surface 7 is provided on one end of the top surface of the movable plate 32 close to the slide chamber 21; when the shoe cover is in operation, when the toe portion 3 drives the movable plate 32 to slide into the sliding cavity 21, if the movable plate 32 is not in place and is higher than the inner wall of the sliding cavity 21, the side wall of the movable plate 32 interferes with the end surface of the sliding cavity 21 during movement, so that the toe portion 3 is influenced to slide into the sliding cavity 21 smoothly, at the moment, the movable plate 32 passes through the guide surface 7, when the movable plate 32 is not in place and is higher than the inner wall of the sliding cavity 21, at the moment, the movable plate 32 can extrude the guide surface 7 through the end portion of the sliding cavity 21 during movement, so that the guide surface 7 can drive the movable plate 32 to be automatically pressed into the sliding groove 31 when being stressed, so that the toe portion 3 slides into the sliding cavity 21 smoothly, and further improves the stability of the shoe cover mold during operation.

When the shoe upper positioning and fixing device works, an external air pump is connected with the air inlet channel 22 on the body part 2, so that the air pump can inflate or deflate the inside of the sliding cavity 21 through the air inlet channel 22, when a mold is required to position and fix the shoe upper in processing, the sliding cavity 21 is inflated through the air pump at the moment, the pressure inside the sliding cavity 21 is increased, the toe part 3 is driven to slide out of the sliding cavity 21, the toe part 3 can drive the limiting block 36 to synchronously slide in the limiting groove 23 during sliding, when the limiting block 36 moves to be attached to the outer end side wall of the limiting groove 23, the toe part 3 can drive the inner end side wall of the sliding groove 31 to be flush with the end part of the sliding cavity 21, and because the gas inside the sliding cavity 21 can respectively apply pressure to the movable plate 32 inside the sliding groove 31 through the first air channel 34 and the second air channel 35, the movable plate 32 at the moment can respectively slide towards the outer end of the, at this time, the protruded sliding plate 25 around the toe portion 3 can fill the gap between the toe portion 3 and the body portion 2, so that the outer surface of the mold body 1 can be more effectively matched with the shape of the sleeved upper and can play a more comprehensive positioning effect on the upper, when the upper and the sole are formed and need to be taken down from the mold body 1, the inside of the sliding cavity 21 is not inflated by the air pump, the movable plate 32 is reset to the inside of the sliding groove 31 under the action of the rebound force of the first spring 33, and the sliding cavity 21 is pumped by the air pump, so that the toe portion 3 can slide to the inside of the sliding cavity 21 under the action of the pressure inside and outside the sliding cavity 21, at this time, the toe portion 3 does not interfere with the shoe taken down from the mold body 1, and the toe portion 3 and the body portion 2 are movably connected, so that the upper can be conveniently and quickly sleeved in the body portion 2 in advance when being positioned, the effective positioning and fixing effect on the upper is achieved through the slipping-off of the toe part 3 from the inside of the body part 2, so that the upper is more convenient and quicker to sleeve and demould.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.