Injection mold for packaging lining production

Abstract

The utility model discloses an injection mold for packaging lining production, which comprises a lower mold and an auxiliary mechanism, and an upper mold is mounted on the upper side of the lower mold; the auxiliary mechanism comprises a longitudinal moving seat, dovetail grooves, sliding seats, connecting rods and a separation top seat, the separation top seat is arranged in a groove formed in the bottom of a mold core of the lower mold, the longitudinal moving seat is arranged at the bottom of an inner cavity of the lower mold in a sliding mode, the two symmetrically-distributed dovetail grooves are formed in the inclined face of the longitudinal moving seat, and the sliding seats are connected into the dovetail grooves in a sliding mode; according to the injection mold for packaging lining production, pulling force is applied by a worker, the force uniformly acts on the bottom of a packaging lining through a transmission element, upward-moving pushing force is applied to the bottom of the packaging lining, then the packaging lining and the wall body of the mold are staggered and separated, and the worker can conveniently take out the packaging lining; and the injection molding time of the packaging lining is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to a packing inner liner production technical field, concretely is a kind of injection mold for packing inner liner production. BACKGROUND

[0002] Packing inner liner is usually supported by foam or plastic, and the product is partially wrapped outside to avoid damage during transportation. The packing inner liner is usually injection molded using an injection mold. In the prior art, a patent with the authorization publication number CN217552996 U discloses an injection mold for edible packaging box production, which includes a base, a fixed mold fixedly connected to the top of the base, a movable mold provided above the fixed mold on the top of the base, connecting plates fixedly connected to the left and right sides of the movable mold, compression springs fixedly connected to the bottom of the connecting plates, guide blocks fixedly connected to the bottom end of the compression springs, and fixed plates fixedly connected to the left and right sides of the fixed mold. The injection mold for edible packaging box production has a spherical bottom of the guide block, a guide groove matching the guide block is formed in the top of the fixed plate, and the compression spring is arranged to buffer the closing of the fixed mold and the movable mold, thereby reducing damage caused by the collision of the fixed mold and the movable mold. However, for the packing inner liner, since it needs to be attached and wrapped for protection on the outside of the product, the forming structure of the packing inner liner is usually complex. When the upper and lower molds are separated, the worker manually takes out the packing inner liner from the mold. Since the packing inner liner is closely attached to the mold and may be stuck, the worker needs to use some tools for discharging operation. The discharging operation needs to be improved, and the device lacks a cooling unit, which leads to a long time required for cooling and forming the packing inner liner. Therefore, we propose an injection mold for packing inner liner production. UTILITY MODEL CONTENTS

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an injection mold for packing inner liner production. The device applies a pulling force by the worker, uses a transmission element to uniformly apply the force to the bottom of the packing inner liner and apply an upward pushing force to it, thereby allowing the packing inner liner to be dislocated and separated from the mold wall body, facilitating the worker to take it out, and the device is provided with a cooling element to reduce the time required for injection molding of the packing inner liner, which can effectively solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an injection mold for packing inner liner production, which comprises a lower mold, an upper mold installed on the upper side of the lower mold, and an auxiliary mechanism.

[0005] Auxiliary mechanism: it includes longitudinal seat, dovetail groove, sliding seat, connecting rod and separation top seat, the separation top seat is opened in the groove opened in the bottom of the mold core of the lower mold, the inner cavity bottom of the lower mold slides the longitudinal seat, the inclined surface of the longitudinal seat is provided with two symmetrical dovetail grooves, the inside of the dovetail groove is slidably connected with the sliding seat, the circular holes opened in the left and right ends of the lower mold are slidably connected with the connecting rods, the ends of the connecting rods away from the center of the lower mold are fixedly connected with the separation top seat, and the ends of the connecting rods close to the center of the lower mold are fixedly connected with the adjacent sliding seat, the device is pulled by the staff, the force is uniformly applied to the bottom of the packaging liner by the transmission element, and the upward pushing force is applied to the bottom of the packaging liner, so that the packaging liner is dislocated and separated from the mold wall body, the packaging liner is taken out conveniently, and the device is provided with the cooling element, so that the time required for injection molding of the packaging liner is reduced.

[0006] Further, the auxiliary mechanism further comprises telescopic columns and springs, the telescopic columns and the springs are respectively arranged between the front and rear sides of the longitudinal seat and the inner cavity wall of the lower mold, the springs are movably sleeved with the outer ends of the adjacent telescopic columns, and the separation top seat in the injection mold for packaging liner production can be automatically moved downward and reset through the stretching or compression elastic force of the spring.

[0007] Further, the auxiliary mechanism further comprises an adjusting rod and a pull button, the adjusting rod is arranged on the front side of the longitudinal seat, the front end of the adjusting rod penetrates through the wall of the lower mold and is provided with the pull button, so that the moving force can be applied to the longitudinal seat in the injection mold for packaging liner production.

[0008] Further, the left side of the lower mold is provided with an inlet pipe, the right side of the lower mold is provided with an outlet pipe, and the inner portion of the lower mold is provided with a cooling pipe, the inlet pipe and the outlet pipe are communicated with the cooling pipe, and the packaging liner in the injection mold for packaging liner production is cooled.

[0009] Further, the upper side of the lower mold is provided with a rubber sealing ring, and the gap between the upper mold and the lower mold of the injection mold for packaging liner production is sealed.

[0010] Further, the upper side of the lower mold is provided with four evenly distributed positioning guide columns, and the four corners of the upper mold are provided with guide holes, the positioning guide columns are mounted in cooperation with the adjacent guide holes, and the upper mold and the lower mold of the injection mold for packaging liner production are aligned and positioned by approaching each other.

[0011] Further, the upper side of the upper mold is provided with a flange ring, and the injection pipe is arranged through the right wall of the upper mold, so that the position of the upper mold of the injection mold for packaging liner production can be fixed.

[0012] Compared with the prior art, the injection mold for packaging liner production has the following advantages:

[0013] 1. The injection mold for producing the packaging liner, by the staff exerting pulling force, using longitudinal seat, dovetail groove, slide, connecting rod, separate top seat, telescopic column, spring, adjusting rod and pull knob, the force is uniformly applied to the bottom of the packaging liner and the upward thrust is applied to it, so that the packaging liner is dislocated and separated from the mold wall, the adhesion phenomenon between the packaging liner and the mold wall is avoided, and the packaging liner is convenient for the staff to take out.

[0014] 2. The injection mold for producing the packaging liner, by the uniform distribution of the cooling pipe, using heat transfer mode, the heat of the packaging liner is uniformly absorbed, so that the time required for injection molding of the packaging liner is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the utility model assembly;

[0017] Figure 3 It is a structural schematic diagram of the utility model lower mold;

[0018] Figure 4 It is a structural schematic diagram of the utility model auxiliary mechanism;

[0019] Figure 5 It is a structural schematic diagram of the utility model cooling pipe.

[0020] In the drawing: 1 lower mold, 2 upper mold, 3 auxiliary mechanism, 31 longitudinal seat, 32 dovetail groove, 33 slide, 34 connecting rod, 35 separate top seat, 36 telescopic column, 37 spring, 38 adjusting rod, 39 pull knob, 4 cooling pipe, 5 liquid inlet pipe, 6 liquid outlet pipe, 7 rubber sealing ring, 8 positioning guide column, 9 flange ring, 10 injection pipe. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] Please refer to Figures 1-5The embodiment provides a technical scheme: a kind of injection mold for packaging liner production, including lower mould 1, the upper side of lower mould 1 is equipped with upper mould 2, the upper side of lower mould 1 is equipped with rubber sealing ring 7, the upper side of lower mould 1 is equipped with four evenly distributed positioning guide pillar 8, the four corners of upper mould 2 are all equipped with guide hole, positioning guide pillar 8 is all installed with adjacent guide hole cooperation, the upper side of upper mould 2 is equipped with flange ring 9, the right wall of upper mould 2 is equipped with injection pipe 10, when the injection production of plastics or foam packaging liner is carried out, first, lower mould 1 is installed and fixed by bolt, then upper mould 2 is connected with external lifting unit by flange ring 9 with bolt, then injection pipe 10 is connected with external packaging liner injection pipeline, when using, the upper mould 2 is made to descend and contact with the upper surface of lower mould by external lifting unit, the guide hole of upper mould 2 is inserted with positioning guide pillar 8 at this time, and is guided by insertion between the two, so as to ensure that the mold core between upper mould 2 and lower mould 1 is aligned, the upper end diameter of positioning guide pillar 8 is less than the lower end diameter, so that positioning guide pillar 8 is more easily inserted into guide hole, when upper mould 2 and lower mould 1 contact alignment, packaging liner raw material is injected into the mold core of mold by injection pipe 10, the contact gap between upper mould 2 and lower mould 1 is sealed by rubber sealing ring 7, to avoid the phenomenon that packaging liner raw material spills, and it also includes auxiliary mechanism 3;

[0023] The auxiliary mechanism 3 comprises a longitudinal moving seat 31, dovetail grooves 32, sliding seats 33, connecting rods 34 and a separation top seat 35, the separation top seat 35 is arranged in the groove arranged in the bottom of the mold core of the lower mold 1, the longitudinal moving seat 31 is slidably arranged in the bottom of the inner cavity of the lower mold 1, the inclined surface of the longitudinal moving seat 31 is provided with two symmetrical dovetail grooves 32, the inner part of the dovetail grooves 32 is slidably connected with the sliding seats 33, the circular holes arranged at the left and right ends of the lower mold 1 are slidably connected with the connecting rods 34, the ends of the connecting rods 34 away from the center of the lower mold 1 are fixedly connected with the separation top seat 35, the ends of the connecting rods 34 close to the center of the lower mold 1 are fixedly connected with the adjacent sliding seats 33, the auxiliary mechanism 3 further comprises telescopic columns 36 and springs 37, the telescopic columns 36 and the springs 37 are symmetrically arranged between the front and rear sides of the longitudinal moving seat 31 and the inner cavity wall of the lower mold 1, the springs 37 are movably sleeved with the outer ends of the adjacent telescopic columns 36, the auxiliary mechanism 3 further comprises an adjusting rod 38 and a pull knob 39, the adjusting rod 38 is arranged on the front side of the longitudinal moving seat 31, the front end of the adjusting rod 38 penetrates through the wall of the lower mold 1 and is provided with the pull knob 39, after the packaging inner liner is injection molded, the outer lifting unit drives the upper mold 2 to move upward and reset, then the staff manually stretches the pull knob 39, the pull knob 39 drives the longitudinal moving seat 31 to slide forward along the bottom of the mold cavity of the lower mold 1 through the adjusting rod 38, during the forward sliding of the longitudinal moving seat 31, the telescopic ends of the telescopic columns 36 on the front side and the springs 37 are contracted, the telescopic ends of the telescopic columns 36 on the rear side and the springs 37 are stretched, the sliding seats 33 are adaptively slid along the dovetail grooves 32, the sliding seats 33 drive the connecting rods 34 to slide upward along the corresponding circular holes through the sliding pressure between the sliding seats 33 and the dovetail grooves 32, the connecting rods 34 drive the separation top seat 35 to move upward along the groove, the separation top seat 35 moves upward through a larger contact area, thereby applying a more uniform upward pushing force to the bottom of the injection molded packaging inner liner, so that the packaging inner liner is separated from the mold wall, which is convenient for the staff to take it out, when the pulling force applied to the pull knob 39 is released, the separation top seat 35 moves downward along the groove to the bottom thereof for resetting through the compression reset force of the front side spring 37 and the stretching reset force of the rear side spring 37, the device applies the force to the bottom of the packaging inner liner through the staff applying the pulling force and the transmission element, and applies an upward pushing force to the bottom of the packaging inner liner, so that the packaging inner liner is dislocated and separated from the mold wall, which is convenient for the staff to take it out;

[0024] The left side of the lower mold 1 is provided with the liquid inlet pipe 5, the right side of the lower mold 1 is provided with the liquid outlet pipe 6, the inside of the lower mold 1 is provided with the cooling pipe 4, the liquid inlet pipe 5 and the liquid outlet pipe 6 are communicated with the cooling pipe 4, after the packaging liner injection molding is completed, the external cooling liquid enters the cooling pipe 4 through the liquid inlet pipe 5 through the pipeline, the cooling liquid flows from left to right along the cooling pipe 4, the heat transfer between the wall bodies is utilized, so that the cooling liquid in the cooling pipe 4 absorbs the heat in the packaging liner raw material in the flowing process, and then the injection molding speed of the packaging liner is improved, the cooling liquid absorbing heat is discharged through the liquid outlet pipe 6, the device is provided with the cooling element, and the time required for the packaging liner injection molding is reduced.

[0025] The working principle of the injection mold for packaging lining production is as follows: when the plastic or foam packaging lining is injection molded, the lower mold 1 is first installed and fixed through the bolts, then the upper mold 2 is connected with the external lifting unit through the flange ring 9 by the bolts, then the injection pipe 10 is connected with the external packaging lining injection pipe, in use, the upper mold 2 is lowered and contacted with the upper surface of the lower mold through the external lifting unit, at this time, the guide hole of the upper mold 2 is inserted with the positioning guide column 8, and the insertion guide is achieved between the two, so that the mold cores between the upper mold 2 and the lower mold 1 are aligned, the upper end of the positioning guide column 8 is smaller than the lower end in diameter, the positioning guide column 8 is more easily inserted into the guide hole, when the upper mold 2 is contacted and aligned with the lower mold 1, the packaging lining raw material is injected into the mold core of the mold through the injection pipe 10, the contact gap between the upper mold 2 and the lower mold 1 is sealed through the rubber sealing ring 7, so as to avoid the overflow of the packaging lining raw material, then the external cooling liquid enters the cooling pipe 4 through the pipeline through the liquid inlet pipe 5, the cooling liquid flows from left to right along the cooling pipe 4, and the heat transfer between the wall bodies is utilized, so that the cooling liquid in the cooling pipe 4 absorbs the heat in the injection-molded packaging lining raw material in the flowing process, and the injection molding speed of the packaging lining is further improved, the cooling liquid absorbing heat is discharged through the liquid outlet pipe 6, after the packaging lining is injection molded, the external lifting unit drives the upper mold 2 to move upward and reset, then the staff manually stretches the pull knob 39, the pull knob 39 drives the longitudinal moving seat 31 to slide forward along the mold cavity bottom of the lower mold 1 through the adjusting rod 38, in the forward sliding process of the longitudinal moving seat 31, the telescopic end of the front telescopic column 36 and the spring 37 are retracted, the telescopic end of the rear telescopic column 36 and the spring 37 are stretched, the sliding seat 33 is adaptively slid along the dovetail groove 32, the sliding seat 33 drives the connecting rod 34 to slide upward along the corresponding circular hole through the sliding pressure between the sliding seat 33 and the dovetail groove 32, the connecting rod 34 drives the separation top seat 35 to move upward along the groove, the separation top seat 35 moves upward through a larger contact area, so that a more uniform upward thrust is applied to the bottom of the injection-molded packaging lining, so that the packaging lining is separated from the mold wall, and the staff can take it out later, when the pulling force applied to the pull knob 39 is released, the separation top seat 35 moves downward along the groove to the bottom for resetting through the compression reset force of the front spring 37 and the stretching reset force of the rear spring 37.

[0026] The above only describes the embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion in the utility model specification and the attached drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. An injection mold for producing packaging liners, comprising a lower mold (1), wherein an upper mold (2) is mounted on the upper side of the lower mold (1), characterized in that: It also includes auxiliary mechanisms (3); Auxiliary mechanism (3): It includes a longitudinal sliding seat (31), a dovetail groove (32), a slide (33), a connecting rod (34), and a separation top seat (35). The separation top seat (35) is opened in the groove at the bottom of the mold core of the lower mold (1). The longitudinal sliding seat (31) slides at the bottom of the inner cavity of the lower mold (1). Two symmetrically distributed dovetail grooves (32) are opened on the inclined surface of the longitudinal sliding seat (31). The slide (33) is slidably connected inside the dovetail groove (32). The connecting rod (34) is slidably connected in the round holes opened at the left and right ends of the lower mold (1). The end of the connecting rod (34) away from the center of the lower mold (1) is fixedly connected to the separation top seat (35), and the end of the connecting rod (34) close to the center of the lower mold (1) is fixedly connected to the adjacent slide (33).

2. The injection mold for producing packaging liners according to claim 1, characterized in that: The auxiliary mechanism (3) also includes a telescopic column (36) and a spring (37). The telescopic column (36) and the spring (37) are symmetrically arranged on the front and rear sides of the longitudinal shift seat (31) and between the inner cavity wall of the lower mold (1). The springs (37) are all movably connected to the outer ends of the adjacent telescopic columns (36).

3. The injection mold for producing packaging liners according to claim 1, characterized in that: The auxiliary mechanism (3) also includes an adjusting rod (38) and a pull button (39). The adjusting rod (38) is located on the front side of the longitudinal shift seat (31). The front end of the adjusting rod (38) passes through the wall of the lower mold (1) and is provided with a pull button (39).

4. The injection mold for producing packaging liners according to claim 1, characterized in that: The lower mold (1) has an inlet pipe (5) on the left side and an outlet pipe (6) on the right side. The lower mold (1) has a cooling pipe (4) inside. The inlet pipe (5) and the outlet pipe (6) are both connected to the cooling pipe (4).

5. The injection mold for producing packaging liners according to claim 1, characterized in that: The lower mold (1) is provided with a rubber sealing ring (7) on its upper side.

6. The injection mold for producing packaging liners according to claim 1, characterized in that: The lower mold (1) has four evenly distributed positioning guide pillars (8) on its upper side, and the upper mold (2) has guide holes at its four corners. The positioning guide pillars (8) are all installed in conjunction with the adjacent guide holes.

7. The injection mold for producing packaging liners according to claim 1, characterized in that: The upper mold (2) is provided with a flange ring (9) on its upper side, and an injection tube (10) is provided through the right wall of the upper mold (2).

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